From 7ca9b574915a17a588db37c5635890fe660ef7e9 Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Tue, 3 Sep 2013 08:31:58 +0800 Subject: pcc_freq: convert acpi_get_handle() to acpi_has_method() acpi_has_method() is a new ACPI API introduced to check the existence of an ACPI control method. It can be used to replace acpi_get_handle() in the case that 1. the calling function doesn't need the ACPI handle of the control method. and 2. the calling function doesn't care the reason why the method is unavailable. Convert acpi_get_handle() to acpi_has_method() in drivers/cpufreq/pcc_freq.c in this patch. Signed-off-by: Zhang Rui Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/pcc-cpufreq.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/pcc-cpufreq.c b/drivers/cpufreq/pcc-cpufreq.c index d81c4e5ea0a..70438de5c0e 100644 --- a/drivers/cpufreq/pcc-cpufreq.c +++ b/drivers/cpufreq/pcc-cpufreq.c @@ -396,15 +396,14 @@ static int __init pcc_cpufreq_probe(void) struct pcc_memory_resource *mem_resource; struct pcc_register_resource *reg_resource; union acpi_object *out_obj, *member; - acpi_handle handle, osc_handle, pcch_handle; + acpi_handle handle, osc_handle; int ret = 0; status = acpi_get_handle(NULL, "\\_SB", &handle); if (ACPI_FAILURE(status)) return -ENODEV; - status = acpi_get_handle(handle, "PCCH", &pcch_handle); - if (ACPI_FAILURE(status)) + if (!acpi_has_method(handle, "PCCH")) return -ENODEV; status = acpi_get_handle(handle, "_OSC", &osc_handle); -- cgit v1.2.3-70-g09d2 From 27047a603645d0885bcd72d7a0b6cce6e3c94ca7 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:03 +0530 Subject: cpufreq: Add new helper cpufreq_table_validate_and_show() Almost every cpufreq driver is required to validate its frequency table with: cpufreq_frequency_table_cpuinfo() and then expose it to cpufreq core with: cpufreq_frequency_table_get_attr(). This patch creates another helper routine cpufreq_table_validate_and_show() that will do both these steps in a single call and will return 0 for success, error otherwise. This also fixes potential bugs in cpufreq drivers where people have called cpufreq_frequency_table_get_attr() before calling cpufreq_frequency_table_cpuinfo(), as the later may fail. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/freq_table.c | 12 ++++++++++++ include/linux/cpufreq.h | 2 ++ 2 files changed, 14 insertions(+) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/freq_table.c b/drivers/cpufreq/freq_table.c index f111454a7ae..11f6fa92a58 100644 --- a/drivers/cpufreq/freq_table.c +++ b/drivers/cpufreq/freq_table.c @@ -219,6 +219,18 @@ void cpufreq_frequency_table_put_attr(unsigned int cpu) } EXPORT_SYMBOL_GPL(cpufreq_frequency_table_put_attr); +int cpufreq_table_validate_and_show(struct cpufreq_policy *policy, + struct cpufreq_frequency_table *table) +{ + int ret = cpufreq_frequency_table_cpuinfo(policy, table); + + if (!ret) + cpufreq_frequency_table_get_attr(table, policy->cpu); + + return ret; +} +EXPORT_SYMBOL_GPL(cpufreq_table_validate_and_show); + void cpufreq_frequency_table_update_policy_cpu(struct cpufreq_policy *policy) { pr_debug("Updating show_table for new_cpu %u from last_cpu %u\n", diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index fcabc42d66a..6b199ed7aa5 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -410,5 +410,7 @@ extern struct freq_attr cpufreq_freq_attr_scaling_available_freqs; void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table, unsigned int cpu); void cpufreq_frequency_table_put_attr(unsigned int cpu); +int cpufreq_table_validate_and_show(struct cpufreq_policy *policy, + struct cpufreq_frequency_table *table); #endif /* _LINUX_CPUFREQ_H */ -- cgit v1.2.3-70-g09d2 From 6a77a1e6429c96be0dab06660b137847e2802806 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:04 +0530 Subject: cpufreq: pxa: call cpufreq_frequency_table_get_attr() This exposes frequency table of driver to cpufreq core and is required for core to guess what the index for a target frequency is, when it calls cpufreq_frequency_table_target(). And so this driver needs to expose it. Cc: Eric Miao Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/pxa2xx-cpufreq.c | 13 ++++++++++++- drivers/cpufreq/pxa3xx-cpufreq.c | 15 +++++++++++++-- 2 files changed, 25 insertions(+), 3 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/pxa2xx-cpufreq.c b/drivers/cpufreq/pxa2xx-cpufreq.c index 8749eaf1879..b004cf1d07a 100644 --- a/drivers/cpufreq/pxa2xx-cpufreq.c +++ b/drivers/cpufreq/pxa2xx-cpufreq.c @@ -453,20 +453,31 @@ static int pxa_cpufreq_init(struct cpufreq_policy *policy) find_freq_tables(&pxa255_freq_table, &pxa255_freqs); pr_info("PXA255 cpufreq using %s frequency table\n", pxa255_turbo_table ? "turbo" : "run"); + cpufreq_frequency_table_cpuinfo(policy, pxa255_freq_table); + cpufreq_frequency_table_get_attr(pxa255_freq_table, policy->cpu); } - else if (cpu_is_pxa27x()) + else if (cpu_is_pxa27x()) { cpufreq_frequency_table_cpuinfo(policy, pxa27x_freq_table); + cpufreq_frequency_table_get_attr(pxa27x_freq_table, policy->cpu); + } printk(KERN_INFO "PXA CPU frequency change support initialized\n"); return 0; } +static int pxa_cpufreq_exit(struct cpufreq_policy *policy) +{ + cpufreq_frequency_table_put_attr(policy->cpu); + return 0; +} + static struct cpufreq_driver pxa_cpufreq_driver = { .verify = pxa_verify_policy, .target = pxa_set_target, .init = pxa_cpufreq_init, + .exit = pxa_cpufreq_exit, .get = pxa_cpufreq_get, .name = "PXA2xx", }; diff --git a/drivers/cpufreq/pxa3xx-cpufreq.c b/drivers/cpufreq/pxa3xx-cpufreq.c index d26306fb00d..cebbed19765 100644 --- a/drivers/cpufreq/pxa3xx-cpufreq.c +++ b/drivers/cpufreq/pxa3xx-cpufreq.c @@ -91,7 +91,7 @@ static int setup_freqs_table(struct cpufreq_policy *policy, struct pxa3xx_freq_info *freqs, int num) { struct cpufreq_frequency_table *table; - int i; + int i, ret; table = kzalloc((num + 1) * sizeof(*table), GFP_KERNEL); if (table == NULL) @@ -108,7 +108,11 @@ static int setup_freqs_table(struct cpufreq_policy *policy, pxa3xx_freqs_num = num; pxa3xx_freqs_table = table; - return cpufreq_frequency_table_cpuinfo(policy, table); + ret = cpufreq_frequency_table_cpuinfo(policy, table); + if (!ret) + cpufreq_frequency_table_get_attr(table, policy->cpu); + + return ret; } static void __update_core_freq(struct pxa3xx_freq_info *info) @@ -229,10 +233,17 @@ static int pxa3xx_cpufreq_init(struct cpufreq_policy *policy) return 0; } +static int pxa3xx_cpufreq_exit(struct cpufreq_policy *policy) +{ + cpufreq_frequency_table_put_attr(policy->cpu); + return 0; +} + static struct cpufreq_driver pxa3xx_cpufreq_driver = { .verify = pxa3xx_cpufreq_verify, .target = pxa3xx_cpufreq_set, .init = pxa3xx_cpufreq_init, + .exit = pxa3xx_cpufreq_exit, .get = pxa3xx_cpufreq_get, .name = "pxa3xx-cpufreq", }; -- cgit v1.2.3-70-g09d2 From 5c40e052bb04381302c748497076b5b4526ed6cb Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:05 +0530 Subject: cpufreq: s3cx4xx: call cpufreq_frequency_table_get_attr() This exposes frequency table of driver to cpufreq core and is required for core to guess what the index for a target frequency is, when it calls cpufreq_frequency_table_target(). And so this driver needs to expose it. Cc: Kukjin Kim Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/s3c24xx-cpufreq.c | 4 +++- drivers/cpufreq/s3c64xx-cpufreq.c | 3 +++ 2 files changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/s3c24xx-cpufreq.c b/drivers/cpufreq/s3c24xx-cpufreq.c index b0f343fcb7e..f2c872c7bbb 100644 --- a/drivers/cpufreq/s3c24xx-cpufreq.c +++ b/drivers/cpufreq/s3c24xx-cpufreq.c @@ -386,8 +386,10 @@ static int s3c_cpufreq_init(struct cpufreq_policy *policy) /* feed the latency information from the cpu driver */ policy->cpuinfo.transition_latency = cpu_cur.info->latency; - if (ftab) + if (ftab) { cpufreq_frequency_table_cpuinfo(policy, ftab); + cpufreq_frequency_table_get_attr(ftab, policy->cpu); + } return 0; } diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c index 8a72b0c555f..90240436e3b 100644 --- a/drivers/cpufreq/s3c64xx-cpufreq.c +++ b/drivers/cpufreq/s3c64xx-cpufreq.c @@ -257,6 +257,9 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy) ret); regulator_put(vddarm); clk_put(armclk); + } else { + cpufreq_frequency_table_get_attr(s3c64xx_freq_table, + policy->cpu); } return ret; -- cgit v1.2.3-70-g09d2 From 18f130ed75ab98573694fa6d8542c7891ccc9447 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:06 +0530 Subject: cpufreq: sparc: call cpufreq_frequency_table_get_attr() This exposes frequency table of driver to cpufreq core and is required for core to guess what the index for a target frequency is, when it calls cpufreq_frequency_table_target(). And so this driver needs to expose it. Cc: David S. Miller Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/sparc-us2e-cpufreq.c | 10 ++++++++-- drivers/cpufreq/sparc-us3-cpufreq.c | 11 +++++++++-- 2 files changed, 17 insertions(+), 4 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/sparc-us2e-cpufreq.c b/drivers/cpufreq/sparc-us2e-cpufreq.c index cf5bc2ca16f..63b3eae5ffd 100644 --- a/drivers/cpufreq/sparc-us2e-cpufreq.c +++ b/drivers/cpufreq/sparc-us2e-cpufreq.c @@ -307,6 +307,7 @@ static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy) unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000; struct cpufreq_frequency_table *table = &us2e_freq_table[cpu].table[0]; + int ret; table[0].driver_data = 0; table[0].frequency = clock_tick / 1; @@ -324,13 +325,18 @@ static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = 0; policy->cur = clock_tick; - return cpufreq_frequency_table_cpuinfo(policy, table); + ret = cpufreq_frequency_table_cpuinfo(policy, table); + if (!ret) + cpufreq_frequency_table_get_attr(table, policy->cpu); + return ret; } static int us2e_freq_cpu_exit(struct cpufreq_policy *policy) { - if (cpufreq_us2e_driver) + if (cpufreq_us2e_driver) { + cpufreq_frequency_table_put_attr(policy->cpu); us2e_set_cpu_divider_index(policy, 0); + } return 0; } diff --git a/drivers/cpufreq/sparc-us3-cpufreq.c b/drivers/cpufreq/sparc-us3-cpufreq.c index ac76b489979..985bc56b006 100644 --- a/drivers/cpufreq/sparc-us3-cpufreq.c +++ b/drivers/cpufreq/sparc-us3-cpufreq.c @@ -168,6 +168,7 @@ static int __init us3_freq_cpu_init(struct cpufreq_policy *policy) unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000; struct cpufreq_frequency_table *table = &us3_freq_table[cpu].table[0]; + int ret; table[0].driver_data = 0; table[0].frequency = clock_tick / 1; @@ -181,13 +182,19 @@ static int __init us3_freq_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = 0; policy->cur = clock_tick; - return cpufreq_frequency_table_cpuinfo(policy, table); + ret = cpufreq_frequency_table_cpuinfo(policy, table); + if (!ret) + cpufreq_frequency_table_get_attr(table, policy->cpu); + + return ret; } static int us3_freq_cpu_exit(struct cpufreq_policy *policy) { - if (cpufreq_us3_driver) + if (cpufreq_us3_driver) { + cpufreq_frequency_table_put_attr(policy->cpu); us3_set_cpu_divider_index(policy, 0); + } return 0; } -- cgit v1.2.3-70-g09d2 From 776b57be6581528125a076cbae5c0b75c50909f5 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:07 +0530 Subject: cpufreq: acpi-cpufreq: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/acpi-cpufreq.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c index d2c3253e015..d9932111a68 100644 --- a/drivers/cpufreq/acpi-cpufreq.c +++ b/drivers/cpufreq/acpi-cpufreq.c @@ -837,7 +837,7 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) data->freq_table[valid_states].frequency = CPUFREQ_TABLE_END; perf->state = 0; - result = cpufreq_frequency_table_cpuinfo(policy, data->freq_table); + result = cpufreq_table_validate_and_show(policy, data->freq_table); if (result) goto err_freqfree; @@ -868,8 +868,6 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) (u32) perf->states[i].power, (u32) perf->states[i].transition_latency); - cpufreq_frequency_table_get_attr(data->freq_table, policy->cpu); - /* * the first call to ->target() should result in us actually * writing something to the appropriate registers. -- cgit v1.2.3-70-g09d2 From 39b10ebe5d30ef46ddea1daa89ca55bd2c817d7b Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:08 +0530 Subject: cpufreq: arm_big_little: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/arm_big_little.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c index 3549f0784af..507027388ae 100644 --- a/drivers/cpufreq/arm_big_little.c +++ b/drivers/cpufreq/arm_big_little.c @@ -165,7 +165,7 @@ static int bL_cpufreq_init(struct cpufreq_policy *policy) if (ret) return ret; - ret = cpufreq_frequency_table_cpuinfo(policy, freq_table[cur_cluster]); + ret = cpufreq_table_validate_and_show(policy, freq_table[cur_cluster]); if (ret) { dev_err(cpu_dev, "CPU %d, cluster: %d invalid freq table\n", policy->cpu, cur_cluster); @@ -173,8 +173,6 @@ static int bL_cpufreq_init(struct cpufreq_policy *policy) return ret; } - cpufreq_frequency_table_get_attr(freq_table[cur_cluster], policy->cpu); - if (arm_bL_ops->get_transition_latency) policy->cpuinfo.transition_latency = arm_bL_ops->get_transition_latency(cpu_dev); -- cgit v1.2.3-70-g09d2 From e2889e2cb8986d6e2d9f8f078249f6dfed5bf605 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:09 +0530 Subject: cpufreq: blackfin: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Cc: Steven Miao Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/blackfin-cpufreq.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/blackfin-cpufreq.c b/drivers/cpufreq/blackfin-cpufreq.c index ef05978a723..54c0a0c2075 100644 --- a/drivers/cpufreq/blackfin-cpufreq.c +++ b/drivers/cpufreq/blackfin-cpufreq.c @@ -210,8 +210,7 @@ static int __bfin_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = 50000; /* 50us assumed */ policy->cur = cclk; - cpufreq_frequency_table_get_attr(bfin_freq_table, policy->cpu); - return cpufreq_frequency_table_cpuinfo(policy, bfin_freq_table); + return cpufreq_table_validate_and_show(policy, bfin_freq_table); } static struct freq_attr *bfin_freq_attr[] = { -- cgit v1.2.3-70-g09d2 From 7a90684956135b3d59fab75166e6ce21e39e532c Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:10 +0530 Subject: cpufreq: cpufreq-cpu0: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Acked-by: Shawn Guo Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq-cpu0.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index 78c49d8e0f4..fd031ec33fc 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -129,7 +129,7 @@ static int cpu0_cpufreq_init(struct cpufreq_policy *policy) { int ret; - ret = cpufreq_frequency_table_cpuinfo(policy, freq_table); + ret = cpufreq_table_validate_and_show(policy, freq_table); if (ret) { pr_err("invalid frequency table: %d\n", ret); return ret; @@ -145,8 +145,6 @@ static int cpu0_cpufreq_init(struct cpufreq_policy *policy) */ cpumask_setall(policy->cpus); - cpufreq_frequency_table_get_attr(freq_table, policy->cpu); - return 0; } -- cgit v1.2.3-70-g09d2 From ae24b5cda83cd496c72acd9fcd97a5748aaeec22 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:11 +0530 Subject: cpufreq: cris: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Cc: Jesper Nilsson Cc: Mikael Starvik Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cris-artpec3-cpufreq.c | 10 +--------- drivers/cpufreq/cris-etraxfs-cpufreq.c | 10 +--------- 2 files changed, 2 insertions(+), 18 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cris-artpec3-cpufreq.c b/drivers/cpufreq/cris-artpec3-cpufreq.c index cb8276dd19c..444fd96ad3a 100644 --- a/drivers/cpufreq/cris-artpec3-cpufreq.c +++ b/drivers/cpufreq/cris-artpec3-cpufreq.c @@ -76,19 +76,11 @@ static int cris_freq_target(struct cpufreq_policy *policy, static int cris_freq_cpu_init(struct cpufreq_policy *policy) { - int result; - /* cpuinfo and default policy values */ policy->cpuinfo.transition_latency = 1000000; /* 1ms */ policy->cur = cris_freq_get_cpu_frequency(0); - result = cpufreq_frequency_table_cpuinfo(policy, cris_freq_table); - if (result) - return (result); - - cpufreq_frequency_table_get_attr(cris_freq_table, policy->cpu); - - return 0; + return cpufreq_table_validate_and_show(policy, cris_freq_table); } diff --git a/drivers/cpufreq/cris-etraxfs-cpufreq.c b/drivers/cpufreq/cris-etraxfs-cpufreq.c index 72328f77dc5..428395e39a6 100644 --- a/drivers/cpufreq/cris-etraxfs-cpufreq.c +++ b/drivers/cpufreq/cris-etraxfs-cpufreq.c @@ -75,19 +75,11 @@ static int cris_freq_target(struct cpufreq_policy *policy, static int cris_freq_cpu_init(struct cpufreq_policy *policy) { - int result; - /* cpuinfo and default policy values */ policy->cpuinfo.transition_latency = 1000000; /* 1ms */ policy->cur = cris_freq_get_cpu_frequency(0); - result = cpufreq_frequency_table_cpuinfo(policy, cris_freq_table); - if (result) - return (result); - - cpufreq_frequency_table_get_attr(cris_freq_table, policy->cpu); - - return 0; + return cpufreq_table_validate_and_show(policy, cris_freq_table); } static int cris_freq_cpu_exit(struct cpufreq_policy *policy) -- cgit v1.2.3-70-g09d2 From e873c5b217634976778bdbf0b88cfded427f545c Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:12 +0530 Subject: cpufreq: davinci: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Cc: Sekhar Nori Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/davinci-cpufreq.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/davinci-cpufreq.c b/drivers/cpufreq/davinci-cpufreq.c index 551dd655c6f..f67196e21fc 100644 --- a/drivers/cpufreq/davinci-cpufreq.c +++ b/drivers/cpufreq/davinci-cpufreq.c @@ -140,15 +140,13 @@ static int davinci_cpu_init(struct cpufreq_policy *policy) policy->cur = davinci_getspeed(0); - result = cpufreq_frequency_table_cpuinfo(policy, freq_table); + result = cpufreq_table_validate_and_show(policy, freq_table); if (result) { - pr_err("%s: cpufreq_frequency_table_cpuinfo() failed", + pr_err("%s: cpufreq_table_validate_and_show() failed", __func__); return result; } - cpufreq_frequency_table_get_attr(freq_table, policy->cpu); - /* * Time measurement across the target() function yields ~1500-1800us * time taken with no drivers on notification list. -- cgit v1.2.3-70-g09d2 From 025829e4a49df6ec860bf69edd2fcfe1db66798d Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:13 +0530 Subject: cpufreq: dbx500: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Acked-by: Linus Walleij Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/dbx500-cpufreq.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/dbx500-cpufreq.c b/drivers/cpufreq/dbx500-cpufreq.c index 26321cdc194..8a484e91bbe 100644 --- a/drivers/cpufreq/dbx500-cpufreq.c +++ b/drivers/cpufreq/dbx500-cpufreq.c @@ -87,10 +87,8 @@ static int dbx500_cpufreq_init(struct cpufreq_policy *policy) int res; /* get policy fields based on the table */ - res = cpufreq_frequency_table_cpuinfo(policy, freq_table); - if (!res) - cpufreq_frequency_table_get_attr(freq_table, policy->cpu); - else { + res = cpufreq_table_validate_and_show(policy, freq_table); + if (res) { pr_err("dbx500-cpufreq: Failed to read policy table\n"); return res; } -- cgit v1.2.3-70-g09d2 From 7813ed7ec1597b002eebf9be19edd1283dbcc6fe Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:14 +0530 Subject: cpufreq: e_powersaver: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/e_powersaver.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/e_powersaver.c b/drivers/cpufreq/e_powersaver.c index 09f64cc8301..c1b7c99d2ef 100644 --- a/drivers/cpufreq/e_powersaver.c +++ b/drivers/cpufreq/e_powersaver.c @@ -403,13 +403,12 @@ static int eps_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = 140000; /* 844mV -> 700mV in ns */ policy->cur = fsb * current_multiplier; - ret = cpufreq_frequency_table_cpuinfo(policy, ¢aur->freq_table[0]); + ret = cpufreq_table_validate_and_show(policy, ¢aur->freq_table[0]); if (ret) { kfree(centaur); return ret; } - cpufreq_frequency_table_get_attr(¢aur->freq_table[0], policy->cpu); return 0; } -- cgit v1.2.3-70-g09d2 From 55bb85b7aeca1e4a689764cb9f53727313130c7f Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:15 +0530 Subject: cpufreq: elanfreq: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/elanfreq.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/elanfreq.c b/drivers/cpufreq/elanfreq.c index 823a400d98f..4000c34e5e5 100644 --- a/drivers/cpufreq/elanfreq.c +++ b/drivers/cpufreq/elanfreq.c @@ -202,7 +202,6 @@ static int elanfreq_cpu_init(struct cpufreq_policy *policy) { struct cpuinfo_x86 *c = &cpu_data(0); unsigned int i; - int result; /* capability check */ if ((c->x86_vendor != X86_VENDOR_AMD) || @@ -223,12 +222,7 @@ static int elanfreq_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; policy->cur = elanfreq_get_cpu_frequency(0); - result = cpufreq_frequency_table_cpuinfo(policy, elanfreq_table); - if (result) - return result; - - cpufreq_frequency_table_get_attr(elanfreq_table, policy->cpu); - return 0; + return cpufreq_table_validate_and_show(policy, elanfreq_table); } -- cgit v1.2.3-70-g09d2 From bc574ce9acb476cdd6622c196a81685b8e907de5 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:16 +0530 Subject: cpufreq: exynos: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Cc: Kukjin Kim Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/exynos-cpufreq.c | 4 +--- drivers/cpufreq/exynos5440-cpufreq.c | 4 +--- 2 files changed, 2 insertions(+), 6 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c index 0fac34439e3..954baed9589 100644 --- a/drivers/cpufreq/exynos-cpufreq.c +++ b/drivers/cpufreq/exynos-cpufreq.c @@ -249,14 +249,12 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy) { policy->cur = policy->min = policy->max = exynos_getspeed(policy->cpu); - cpufreq_frequency_table_get_attr(exynos_info->freq_table, policy->cpu); - /* set the transition latency value */ policy->cpuinfo.transition_latency = 100000; cpumask_setall(policy->cpus); - return cpufreq_frequency_table_cpuinfo(policy, exynos_info->freq_table); + return cpufreq_table_validate_and_show(policy, exynos_info->freq_table); } static int exynos_cpufreq_cpu_exit(struct cpufreq_policy *policy) diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c index be5380ecdcd..b62967148c8 100644 --- a/drivers/cpufreq/exynos5440-cpufreq.c +++ b/drivers/cpufreq/exynos5440-cpufreq.c @@ -326,7 +326,7 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy) { int ret; - ret = cpufreq_frequency_table_cpuinfo(policy, dvfs_info->freq_table); + ret = cpufreq_table_validate_and_show(policy, dvfs_info->freq_table); if (ret) { dev_err(dvfs_info->dev, "Invalid frequency table: %d\n", ret); return ret; @@ -336,8 +336,6 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = dvfs_info->latency; cpumask_setall(policy->cpus); - cpufreq_frequency_table_get_attr(dvfs_info->freq_table, policy->cpu); - return 0; } -- cgit v1.2.3-70-g09d2 From bbe2c1703d493dddc07abc579f6da239a2317cfa Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:17 +0530 Subject: cpufreq: ia64-acpi: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Cc: Tony Luck Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/ia64-acpi-cpufreq.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/ia64-acpi-cpufreq.c b/drivers/cpufreq/ia64-acpi-cpufreq.c index 3e14f031717..6cfad5193d3 100644 --- a/drivers/cpufreq/ia64-acpi-cpufreq.c +++ b/drivers/cpufreq/ia64-acpi-cpufreq.c @@ -335,7 +335,7 @@ acpi_cpufreq_cpu_init ( } } - result = cpufreq_frequency_table_cpuinfo(policy, data->freq_table); + result = cpufreq_table_validate_and_show(policy, data->freq_table); if (result) { goto err_freqfree; } @@ -356,8 +356,6 @@ acpi_cpufreq_cpu_init ( (u32) data->acpi_data.states[i].status, (u32) data->acpi_data.states[i].control); - cpufreq_frequency_table_get_attr(data->freq_table, policy->cpu); - /* the first call to ->target() should result in us actually * writing something to the appropriate registers. */ data->resume = 1; -- cgit v1.2.3-70-g09d2 From 9ff4a80b2551d43f92c3d9a7a11e406ce7aa47f3 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:18 +0530 Subject: cpufreq: imx6q: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Cc: Shawn Guo Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/imx6q-cpufreq.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c index c3fd2a101ca..af0e202d877 100644 --- a/drivers/cpufreq/imx6q-cpufreq.c +++ b/drivers/cpufreq/imx6q-cpufreq.c @@ -161,7 +161,7 @@ static int imx6q_cpufreq_init(struct cpufreq_policy *policy) { int ret; - ret = cpufreq_frequency_table_cpuinfo(policy, freq_table); + ret = cpufreq_table_validate_and_show(policy, freq_table); if (ret) { dev_err(cpu_dev, "invalid frequency table: %d\n", ret); return ret; @@ -170,7 +170,6 @@ static int imx6q_cpufreq_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = transition_latency; policy->cur = clk_get_rate(arm_clk) / 1000; cpumask_setall(policy->cpus); - cpufreq_frequency_table_get_attr(freq_table, policy->cpu); return 0; } -- cgit v1.2.3-70-g09d2 From 6efbc777b9cf4af5efdd06e8365639cacbc65b7b Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:19 +0530 Subject: cpufreq: kirkwood: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Reviewed-by: Andrew Lunn Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/kirkwood-cpufreq.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/kirkwood-cpufreq.c b/drivers/cpufreq/kirkwood-cpufreq.c index ba10658a939..59cbb351fc6 100644 --- a/drivers/cpufreq/kirkwood-cpufreq.c +++ b/drivers/cpufreq/kirkwood-cpufreq.c @@ -125,19 +125,11 @@ static int kirkwood_cpufreq_target(struct cpufreq_policy *policy, /* Module init and exit code */ static int kirkwood_cpufreq_cpu_init(struct cpufreq_policy *policy) { - int result; - /* cpuinfo and default policy values */ policy->cpuinfo.transition_latency = 5000; /* 5uS */ policy->cur = kirkwood_cpufreq_get_cpu_frequency(0); - result = cpufreq_frequency_table_cpuinfo(policy, kirkwood_freq_table); - if (result) - return result; - - cpufreq_frequency_table_get_attr(kirkwood_freq_table, policy->cpu); - - return 0; + return cpufreq_table_validate_and_show(policy, kirkwood_freq_table); } static int kirkwood_cpufreq_cpu_exit(struct cpufreq_policy *policy) -- cgit v1.2.3-70-g09d2 From 30aa53412797a45b0b21da332e7a0fc6a74bb061 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:20 +0530 Subject: cpufreq: longhaul: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/longhaul.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/longhaul.c b/drivers/cpufreq/longhaul.c index 4ada1cccb05..70b66fda3ca 100644 --- a/drivers/cpufreq/longhaul.c +++ b/drivers/cpufreq/longhaul.c @@ -921,13 +921,7 @@ static int longhaul_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = 200000; /* nsec */ policy->cur = calc_speed(longhaul_get_cpu_mult()); - ret = cpufreq_frequency_table_cpuinfo(policy, longhaul_table); - if (ret) - return ret; - - cpufreq_frequency_table_get_attr(longhaul_table, policy->cpu); - - return 0; + return cpufreq_table_validate_and_show(policy, longhaul_table); } static int longhaul_cpu_exit(struct cpufreq_policy *policy) -- cgit v1.2.3-70-g09d2 From f71123522468805b3b4fe510172b7a46e046d89a Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:21 +0530 Subject: cpufreq: loongson2: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Cc: John Crispin Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/loongson2_cpufreq.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c index 7bc3c44d34e..5dd3692441f 100644 --- a/drivers/cpufreq/loongson2_cpufreq.c +++ b/drivers/cpufreq/loongson2_cpufreq.c @@ -133,10 +133,7 @@ static int loongson2_cpufreq_cpu_init(struct cpufreq_policy *policy) policy->cur = loongson2_cpufreq_get(policy->cpu); - cpufreq_frequency_table_get_attr(&loongson2_clockmod_table[0], - policy->cpu); - - return cpufreq_frequency_table_cpuinfo(policy, + return cpufreq_table_validate_and_show(policy, &loongson2_clockmod_table[0]); } -- cgit v1.2.3-70-g09d2 From 05b1621cb5134b89b6ab36e9b82bea32283c7c50 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:22 +0530 Subject: cpufreq: maple: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Cc: Dmitry Eremin-Solenikov Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/maple-cpufreq.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/maple-cpufreq.c b/drivers/cpufreq/maple-cpufreq.c index 6168d77b296..b3fb661b2b5 100644 --- a/drivers/cpufreq/maple-cpufreq.c +++ b/drivers/cpufreq/maple-cpufreq.c @@ -181,10 +181,8 @@ static int maple_cpufreq_cpu_init(struct cpufreq_policy *policy) * cpufreq core if in the secondary policy we tell it that * it actually must be one policy together with all others. */ cpumask_setall(policy->cpus); - cpufreq_frequency_table_get_attr(maple_cpu_freqs, policy->cpu); - return cpufreq_frequency_table_cpuinfo(policy, - maple_cpu_freqs); + return cpufreq_table_validate_and_show(policy, maple_cpu_freqs); } -- cgit v1.2.3-70-g09d2 From aca71cf06792eadebd3f3df58e3c1af364ae0e8b Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:23 +0530 Subject: cpufreq: omap: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Acked-by: Santosh Shilimkar Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/omap-cpufreq.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c index f31fcfcad51..b68ce4ed294 100644 --- a/drivers/cpufreq/omap-cpufreq.c +++ b/drivers/cpufreq/omap-cpufreq.c @@ -191,12 +191,10 @@ static int omap_cpu_init(struct cpufreq_policy *policy) atomic_inc_return(&freq_table_users); - result = cpufreq_frequency_table_cpuinfo(policy, freq_table); + result = cpufreq_table_validate_and_show(policy, freq_table); if (result) goto fail_table; - cpufreq_frequency_table_get_attr(freq_table, policy->cpu); - policy->cur = omap_getspeed(policy->cpu); /* -- cgit v1.2.3-70-g09d2 From 719ffe495cfb86492ab47b05fde55fd5eafec159 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:24 +0530 Subject: cpufreq: p4-clockmod: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Cc: David S. Miller Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/p4-clockmod.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c index 2f0a2a65c37..03478bf2967 100644 --- a/drivers/cpufreq/p4-clockmod.c +++ b/drivers/cpufreq/p4-clockmod.c @@ -230,7 +230,6 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy) else p4clockmod_table[i].frequency = (stock_freq * i)/8; } - cpufreq_frequency_table_get_attr(p4clockmod_table, policy->cpu); /* cpuinfo and default policy values */ @@ -239,7 +238,7 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = 10000001; policy->cur = stock_freq; - return cpufreq_frequency_table_cpuinfo(policy, &p4clockmod_table[0]); + return cpufreq_table_validate_and_show(policy, &p4clockmod_table[0]); } -- cgit v1.2.3-70-g09d2 From 2e4633e4c15b92ffc05e030907ebdb9404d5554c Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:25 +0530 Subject: cpufreq: pasemi: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/pasemi-cpufreq.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c index 534e43a60d1..23bc8a82b99 100644 --- a/drivers/cpufreq/pasemi-cpufreq.c +++ b/drivers/cpufreq/pasemi-cpufreq.c @@ -219,12 +219,10 @@ static int pas_cpufreq_cpu_init(struct cpufreq_policy *policy) ppc_proc_freq = policy->cur * 1000ul; - cpufreq_frequency_table_get_attr(pas_freqs, policy->cpu); - /* this ensures that policy->cpuinfo_min and policy->cpuinfo_max * are set correctly */ - return cpufreq_frequency_table_cpuinfo(policy, pas_freqs); + return cpufreq_table_validate_and_show(policy, pas_freqs); out_unmap_sdcpwr: iounmap(sdcpwr_mapbase); -- cgit v1.2.3-70-g09d2 From 0e645df9c481b932c99cf1fd38c568b42c705408 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:26 +0530 Subject: cpufreq: pmac: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/pmac32-cpufreq.c | 3 +-- drivers/cpufreq/pmac64-cpufreq.c | 4 +--- 2 files changed, 2 insertions(+), 5 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/pmac32-cpufreq.c b/drivers/cpufreq/pmac32-cpufreq.c index a096cd3fa23..470b5553bb6 100644 --- a/drivers/cpufreq/pmac32-cpufreq.c +++ b/drivers/cpufreq/pmac32-cpufreq.c @@ -408,8 +408,7 @@ static int pmac_cpufreq_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = transition_latency; policy->cur = cur_freq; - cpufreq_frequency_table_get_attr(pmac_cpu_freqs, policy->cpu); - return cpufreq_frequency_table_cpuinfo(policy, pmac_cpu_freqs); + return cpufreq_table_validate_and_show(policy, pmac_cpu_freqs); } static u32 read_gpio(struct device_node *np) diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c index 3a51ad7e47c..41fa89e4d9d 100644 --- a/drivers/cpufreq/pmac64-cpufreq.c +++ b/drivers/cpufreq/pmac64-cpufreq.c @@ -363,10 +363,8 @@ static int g5_cpufreq_cpu_init(struct cpufreq_policy *policy) * cpufreq core if in the secondary policy we tell it that * it actually must be one policy together with all others. */ cpumask_copy(policy->cpus, cpu_online_mask); - cpufreq_frequency_table_get_attr(g5_cpu_freqs, policy->cpu); - return cpufreq_frequency_table_cpuinfo(policy, - g5_cpu_freqs); + return cpufreq_table_validate_and_show(policy, g5_cpu_freqs); } -- cgit v1.2.3-70-g09d2 From b147405aa8e568750bfa99501c7fa831edef47c9 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:27 +0530 Subject: cpufreq: powernow: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/powernow-k6.c | 9 +-------- drivers/cpufreq/powernow-k7.c | 4 +--- drivers/cpufreq/powernow-k8.c | 4 +--- 3 files changed, 3 insertions(+), 14 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/powernow-k6.c b/drivers/cpufreq/powernow-k6.c index 85f1c8c25dd..ab1de0d2509 100644 --- a/drivers/cpufreq/powernow-k6.c +++ b/drivers/cpufreq/powernow-k6.c @@ -145,7 +145,6 @@ static int powernow_k6_target(struct cpufreq_policy *policy, static int powernow_k6_cpu_init(struct cpufreq_policy *policy) { unsigned int i, f; - int result; if (policy->cpu != 0) return -ENODEV; @@ -167,13 +166,7 @@ static int powernow_k6_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = 200000; policy->cur = busfreq * max_multiplier; - result = cpufreq_frequency_table_cpuinfo(policy, clock_ratio); - if (result) - return result; - - cpufreq_frequency_table_get_attr(clock_ratio, policy->cpu); - - return 0; + return cpufreq_table_validate_and_show(policy, clock_ratio); } diff --git a/drivers/cpufreq/powernow-k7.c b/drivers/cpufreq/powernow-k7.c index 14ce480be8a..c863c13dfcc 100644 --- a/drivers/cpufreq/powernow-k7.c +++ b/drivers/cpufreq/powernow-k7.c @@ -680,9 +680,7 @@ static int powernow_cpu_init(struct cpufreq_policy *policy) policy->cur = powernow_get(0); - cpufreq_frequency_table_get_attr(powernow_table, policy->cpu); - - return cpufreq_frequency_table_cpuinfo(policy, powernow_table); + return cpufreq_table_validate_and_show(policy, powernow_table); } static int powernow_cpu_exit(struct cpufreq_policy *policy) diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c index 2344a9ed17f..8d4114a043b 100644 --- a/drivers/cpufreq/powernow-k8.c +++ b/drivers/cpufreq/powernow-k8.c @@ -1156,7 +1156,7 @@ static int powernowk8_cpu_init(struct cpufreq_policy *pol) pr_debug("policy current frequency %d kHz\n", pol->cur); /* min/max the cpu is capable of */ - if (cpufreq_frequency_table_cpuinfo(pol, data->powernow_table)) { + if (cpufreq_table_validate_and_show(pol, data->powernow_table)) { printk(KERN_ERR FW_BUG PFX "invalid powernow_table\n"); powernow_k8_cpu_exit_acpi(data); kfree(data->powernow_table); @@ -1164,8 +1164,6 @@ static int powernowk8_cpu_init(struct cpufreq_policy *pol) return -EINVAL; } - cpufreq_frequency_table_get_attr(data->powernow_table, pol->cpu); - pr_debug("cpu_init done, current fid 0x%x, vid 0x%x\n", data->currfid, data->currvid); -- cgit v1.2.3-70-g09d2 From 6b4147db3de33b49a5c6a88736e9322936672dc4 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:28 +0530 Subject: cpufreq: ppc: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/ppc-corenet-cpufreq.c | 3 +-- drivers/cpufreq/ppc_cbe_cpufreq.c | 4 +--- 2 files changed, 2 insertions(+), 5 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/ppc-corenet-cpufreq.c b/drivers/cpufreq/ppc-corenet-cpufreq.c index 60e81d524ea..5716b44ffc0 100644 --- a/drivers/cpufreq/ppc-corenet-cpufreq.c +++ b/drivers/cpufreq/ppc-corenet-cpufreq.c @@ -202,7 +202,7 @@ static int corenet_cpufreq_cpu_init(struct cpufreq_policy *policy) table[i].frequency = CPUFREQ_TABLE_END; /* set the min and max frequency properly */ - ret = cpufreq_frequency_table_cpuinfo(policy, table); + ret = cpufreq_table_validate_and_show(policy, table); if (ret) { pr_err("invalid frequency table: %d\n", ret); goto err_nomem1; @@ -219,7 +219,6 @@ static int corenet_cpufreq_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; policy->cur = corenet_cpufreq_get_speed(policy->cpu); - cpufreq_frequency_table_get_attr(table, cpu); of_node_put(np); return 0; diff --git a/drivers/cpufreq/ppc_cbe_cpufreq.c b/drivers/cpufreq/ppc_cbe_cpufreq.c index 2e448f0bbdc..6c5be63ce91 100644 --- a/drivers/cpufreq/ppc_cbe_cpufreq.c +++ b/drivers/cpufreq/ppc_cbe_cpufreq.c @@ -123,11 +123,9 @@ static int cbe_cpufreq_cpu_init(struct cpufreq_policy *policy) cpumask_copy(policy->cpus, cpu_sibling_mask(policy->cpu)); #endif - cpufreq_frequency_table_get_attr(cbe_freqs, policy->cpu); - /* this ensures that policy->cpuinfo_min * and policy->cpuinfo_max are set correctly */ - return cpufreq_frequency_table_cpuinfo(policy, cbe_freqs); + return cpufreq_table_validate_and_show(policy, cbe_freqs); } static int cbe_cpufreq_cpu_exit(struct cpufreq_policy *policy) -- cgit v1.2.3-70-g09d2 From 15cc921b97f1c0aac38edfe7c796bfb5d5f4676b Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:29 +0530 Subject: cpufreq: pxa: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Cc: Eric Miao Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/pxa2xx-cpufreq.c | 6 ++---- drivers/cpufreq/pxa3xx-cpufreq.c | 8 ++------ 2 files changed, 4 insertions(+), 10 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/pxa2xx-cpufreq.c b/drivers/cpufreq/pxa2xx-cpufreq.c index b004cf1d07a..236531a0753 100644 --- a/drivers/cpufreq/pxa2xx-cpufreq.c +++ b/drivers/cpufreq/pxa2xx-cpufreq.c @@ -454,12 +454,10 @@ static int pxa_cpufreq_init(struct cpufreq_policy *policy) pr_info("PXA255 cpufreq using %s frequency table\n", pxa255_turbo_table ? "turbo" : "run"); - cpufreq_frequency_table_cpuinfo(policy, pxa255_freq_table); - cpufreq_frequency_table_get_attr(pxa255_freq_table, policy->cpu); + cpufreq_table_validate_and_show(policy, pxa255_freq_table); } else if (cpu_is_pxa27x()) { - cpufreq_frequency_table_cpuinfo(policy, pxa27x_freq_table); - cpufreq_frequency_table_get_attr(pxa27x_freq_table, policy->cpu); + cpufreq_table_validate_and_show(policy, pxa27x_freq_table); } printk(KERN_INFO "PXA CPU frequency change support initialized\n"); diff --git a/drivers/cpufreq/pxa3xx-cpufreq.c b/drivers/cpufreq/pxa3xx-cpufreq.c index cebbed19765..65fd01e57cb 100644 --- a/drivers/cpufreq/pxa3xx-cpufreq.c +++ b/drivers/cpufreq/pxa3xx-cpufreq.c @@ -91,7 +91,7 @@ static int setup_freqs_table(struct cpufreq_policy *policy, struct pxa3xx_freq_info *freqs, int num) { struct cpufreq_frequency_table *table; - int i, ret; + int i; table = kzalloc((num + 1) * sizeof(*table), GFP_KERNEL); if (table == NULL) @@ -108,11 +108,7 @@ static int setup_freqs_table(struct cpufreq_policy *policy, pxa3xx_freqs_num = num; pxa3xx_freqs_table = table; - ret = cpufreq_frequency_table_cpuinfo(policy, table); - if (!ret) - cpufreq_frequency_table_get_attr(table, policy->cpu); - - return ret; + return cpufreq_table_validate_and_show(policy, table); } static void __update_core_freq(struct pxa3xx_freq_info *info) -- cgit v1.2.3-70-g09d2 From 4974b8ea4add1ae5e3123fe734deb12859da725b Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:30 +0530 Subject: cpufreq: s3cx4xx: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Cc: Kukjin Kim Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/s3c2416-cpufreq.c | 4 +--- drivers/cpufreq/s3c24xx-cpufreq.c | 6 ++---- drivers/cpufreq/s3c64xx-cpufreq.c | 5 +---- 3 files changed, 4 insertions(+), 11 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/s3c2416-cpufreq.c b/drivers/cpufreq/s3c2416-cpufreq.c index 22dcb81ef9d..a7a4c612d15 100644 --- a/drivers/cpufreq/s3c2416-cpufreq.c +++ b/drivers/cpufreq/s3c2416-cpufreq.c @@ -494,12 +494,10 @@ static int __init s3c2416_cpufreq_driver_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = (500 * 1000) + s3c_freq->regulator_latency; - ret = cpufreq_frequency_table_cpuinfo(policy, s3c_freq->freq_table); + ret = cpufreq_table_validate_and_show(policy, s3c_freq->freq_table); if (ret) goto err_freq_table; - cpufreq_frequency_table_get_attr(s3c_freq->freq_table, 0); - register_reboot_notifier(&s3c2416_cpufreq_reboot_notifier); return 0; diff --git a/drivers/cpufreq/s3c24xx-cpufreq.c b/drivers/cpufreq/s3c24xx-cpufreq.c index f2c872c7bbb..73856d1d4d4 100644 --- a/drivers/cpufreq/s3c24xx-cpufreq.c +++ b/drivers/cpufreq/s3c24xx-cpufreq.c @@ -386,10 +386,8 @@ static int s3c_cpufreq_init(struct cpufreq_policy *policy) /* feed the latency information from the cpu driver */ policy->cpuinfo.transition_latency = cpu_cur.info->latency; - if (ftab) { - cpufreq_frequency_table_cpuinfo(policy, ftab); - cpufreq_frequency_table_get_attr(ftab, policy->cpu); - } + if (ftab) + return cpufreq_table_validate_and_show(policy, ftab); return 0; } diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c index 90240436e3b..872f74dd401 100644 --- a/drivers/cpufreq/s3c64xx-cpufreq.c +++ b/drivers/cpufreq/s3c64xx-cpufreq.c @@ -251,15 +251,12 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy) */ policy->cpuinfo.transition_latency = (500 * 1000) + regulator_latency; - ret = cpufreq_frequency_table_cpuinfo(policy, s3c64xx_freq_table); + ret = cpufreq_table_validate_and_show(policy, s3c64xx_freq_table); if (ret != 0) { pr_err("Failed to configure frequency table: %d\n", ret); regulator_put(vddarm); clk_put(armclk); - } else { - cpufreq_frequency_table_get_attr(s3c64xx_freq_table, - policy->cpu); } return ret; -- cgit v1.2.3-70-g09d2 From 291e8fb1a320ef9bce679dba9d6c6892e5e2c774 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:31 +0530 Subject: cpufreq: s5pv210: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Cc: Kukjin Kim Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/s5pv210-cpufreq.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/s5pv210-cpufreq.c b/drivers/cpufreq/s5pv210-cpufreq.c index 5c775707379..c266a7ef3a7 100644 --- a/drivers/cpufreq/s5pv210-cpufreq.c +++ b/drivers/cpufreq/s5pv210-cpufreq.c @@ -553,11 +553,9 @@ static int __init s5pv210_cpu_init(struct cpufreq_policy *policy) policy->cur = policy->min = policy->max = s5pv210_getspeed(0); - cpufreq_frequency_table_get_attr(s5pv210_freq_table, policy->cpu); - policy->cpuinfo.transition_latency = 40000; - return cpufreq_frequency_table_cpuinfo(policy, s5pv210_freq_table); + return cpufreq_table_validate_and_show(policy, s5pv210_freq_table); out_dmc1: clk_put(dmc0_clk); -- cgit v1.2.3-70-g09d2 From 22c8b4f1409097c073a0f894406c8bb9525bfb68 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:32 +0530 Subject: cpufreq: sa11x0: Expose frequency table This patch exposes sa11x0's frequency table to cpufreq core. It always existed but not as an array frequencies and not in the format cpufreq core wants it to. Also it was present in the unit of 100kHz earlier which is made consistent with cpufreq core now, i.e. kHz. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-sa1100/generic.c | 45 ++++++++++++++++++++-------------------- arch/arm/mach-sa1100/generic.h | 1 + drivers/cpufreq/sa1100-cpufreq.c | 3 ++- drivers/cpufreq/sa1110-cpufreq.c | 3 ++- 4 files changed, 27 insertions(+), 25 deletions(-) (limited to 'drivers/cpufreq') diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c index f25b6119e02..5c8167b05c2 100644 --- a/arch/arm/mach-sa1100/generic.c +++ b/arch/arm/mach-sa1100/generic.c @@ -42,23 +42,24 @@ EXPORT_SYMBOL(reset_status); /* * This table is setup for a 3.6864MHz Crystal. */ -static const unsigned short cclk_frequency_100khz[NR_FREQS] = { - 590, /* 59.0 MHz */ - 737, /* 73.7 MHz */ - 885, /* 88.5 MHz */ - 1032, /* 103.2 MHz */ - 1180, /* 118.0 MHz */ - 1327, /* 132.7 MHz */ - 1475, /* 147.5 MHz */ - 1622, /* 162.2 MHz */ - 1769, /* 176.9 MHz */ - 1917, /* 191.7 MHz */ - 2064, /* 206.4 MHz */ - 2212, /* 221.2 MHz */ - 2359, /* 235.9 MHz */ - 2507, /* 250.7 MHz */ - 2654, /* 265.4 MHz */ - 2802 /* 280.2 MHz */ +struct cpufreq_frequency_table sa11x0_freq_table[NR_FREQS+1] = { + { .frequency = 59000, /* 59.0 MHz */}, + { .frequency = 73700, /* 73.7 MHz */}, + { .frequency = 88500, /* 88.5 MHz */}, + { .frequency = 103200, /* 103.2 MHz */}, + { .frequency = 118000, /* 118.0 MHz */}, + { .frequency = 132700, /* 132.7 MHz */}, + { .frequency = 147500, /* 147.5 MHz */}, + { .frequency = 162200, /* 162.2 MHz */}, + { .frequency = 176900, /* 176.9 MHz */}, + { .frequency = 191700, /* 191.7 MHz */}, + { .frequency = 206400, /* 206.4 MHz */}, + { .frequency = 221200, /* 221.2 MHz */}, + { .frequency = 235900, /* 235.9 MHz */}, + { .frequency = 250700, /* 250.7 MHz */}, + { .frequency = 265400, /* 265.4 MHz */}, + { .frequency = 280200, /* 280.2 MHz */}, + { .frequency = CPUFREQ_TABLE_END, }, }; /* rounds up(!) */ @@ -66,10 +67,8 @@ unsigned int sa11x0_freq_to_ppcr(unsigned int khz) { int i; - khz /= 100; - for (i = 0; i < NR_FREQS; i++) - if (cclk_frequency_100khz[i] >= khz) + if (sa11x0_freq_table[i].frequency >= khz) break; return i; @@ -79,7 +78,7 @@ unsigned int sa11x0_ppcr_to_freq(unsigned int idx) { unsigned int freq = 0; if (idx < NR_FREQS) - freq = cclk_frequency_100khz[idx] * 100; + freq = sa11x0_freq_table[idx].frequency; return freq; } @@ -96,7 +95,7 @@ int sa11x0_verify_speed(struct cpufreq_policy *policy) cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, policy->cpuinfo.max_freq); /* make sure that at least one frequency is within the policy */ - tmp = cclk_frequency_100khz[sa11x0_freq_to_ppcr(policy->min)] * 100; + tmp = sa11x0_freq_table[sa11x0_freq_to_ppcr(policy->min)].frequency; if (tmp > policy->max) policy->max = tmp; @@ -109,7 +108,7 @@ unsigned int sa11x0_getspeed(unsigned int cpu) { if (cpu) return 0; - return cclk_frequency_100khz[PPCR & 0xf] * 100; + return sa11x0_freq_table[PPCR & 0xf].frequency; } /* diff --git a/arch/arm/mach-sa1100/generic.h b/arch/arm/mach-sa1100/generic.h index 9a33695c949..f5214ce494a 100644 --- a/arch/arm/mach-sa1100/generic.h +++ b/arch/arm/mach-sa1100/generic.h @@ -21,6 +21,7 @@ extern void sa1110_mb_disable(void); struct cpufreq_policy; +extern struct cpufreq_frequency_table sa11x0_freq_table[]; extern unsigned int sa11x0_freq_to_ppcr(unsigned int khz); extern int sa11x0_verify_speed(struct cpufreq_policy *policy); extern unsigned int sa11x0_getspeed(unsigned int cpu); diff --git a/drivers/cpufreq/sa1100-cpufreq.c b/drivers/cpufreq/sa1100-cpufreq.c index cff18e87ca5..1323a6986f7 100644 --- a/drivers/cpufreq/sa1100-cpufreq.c +++ b/drivers/cpufreq/sa1100-cpufreq.c @@ -224,7 +224,8 @@ static int __init sa1100_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.min_freq = 59000; policy->cpuinfo.max_freq = 287000; policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; - return 0; + + return cpufreq_table_validate_and_show(policy, sa11x0_freq_table); } static struct cpufreq_driver sa1100_driver __refdata = { diff --git a/drivers/cpufreq/sa1110-cpufreq.c b/drivers/cpufreq/sa1110-cpufreq.c index 39c90b6f428..adb05247c1c 100644 --- a/drivers/cpufreq/sa1110-cpufreq.c +++ b/drivers/cpufreq/sa1110-cpufreq.c @@ -338,7 +338,8 @@ static int __init sa1110_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.min_freq = 59000; policy->cpuinfo.max_freq = 287000; policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; - return 0; + + return cpufreq_table_validate_and_show(policy, sa11x0_freq_table); } /* sa1110_driver needs __refdata because it must remain after init registers -- cgit v1.2.3-70-g09d2 From 53862f7a0b75f3d8e7445b864aa45cfa4aa49570 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:33 +0530 Subject: cpufreq: sa11x0: let cpufreq core initialize struct policy fields Many fields of struct policy are filled by cpufreq core when we call cpufreq_table_validate_and_show() and so cpufreq driver doesn't need to set them anymore. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/sa1100-cpufreq.c | 4 +--- drivers/cpufreq/sa1110-cpufreq.c | 4 +--- 2 files changed, 2 insertions(+), 6 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/sa1100-cpufreq.c b/drivers/cpufreq/sa1100-cpufreq.c index 1323a6986f7..37fce2f1571 100644 --- a/drivers/cpufreq/sa1100-cpufreq.c +++ b/drivers/cpufreq/sa1100-cpufreq.c @@ -220,9 +220,7 @@ static int __init sa1100_cpu_init(struct cpufreq_policy *policy) { if (policy->cpu != 0) return -EINVAL; - policy->cur = policy->min = policy->max = sa11x0_getspeed(0); - policy->cpuinfo.min_freq = 59000; - policy->cpuinfo.max_freq = 287000; + policy->cur = sa11x0_getspeed(0); policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; return cpufreq_table_validate_and_show(policy, sa11x0_freq_table); diff --git a/drivers/cpufreq/sa1110-cpufreq.c b/drivers/cpufreq/sa1110-cpufreq.c index adb05247c1c..13760fc6385 100644 --- a/drivers/cpufreq/sa1110-cpufreq.c +++ b/drivers/cpufreq/sa1110-cpufreq.c @@ -334,9 +334,7 @@ static int __init sa1110_cpu_init(struct cpufreq_policy *policy) { if (policy->cpu != 0) return -EINVAL; - policy->cur = policy->min = policy->max = sa11x0_getspeed(0); - policy->cpuinfo.min_freq = 59000; - policy->cpuinfo.max_freq = 287000; + policy->cur = sa11x0_getspeed(0); policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; return cpufreq_table_validate_and_show(policy, sa11x0_freq_table); -- cgit v1.2.3-70-g09d2 From ae025193d3b811e1cd6bdfa7dc4940ae9e2739d1 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:34 +0530 Subject: cpufreq: sc520: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/sc520_freq.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/sc520_freq.c b/drivers/cpufreq/sc520_freq.c index d6f6c6f4efa..bb9c0def3f0 100644 --- a/drivers/cpufreq/sc520_freq.c +++ b/drivers/cpufreq/sc520_freq.c @@ -106,7 +106,6 @@ static int sc520_freq_target(struct cpufreq_policy *policy, static int sc520_freq_cpu_init(struct cpufreq_policy *policy) { struct cpuinfo_x86 *c = &cpu_data(0); - int result; /* capability check */ if (c->x86_vendor != X86_VENDOR_AMD || @@ -117,13 +116,7 @@ static int sc520_freq_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = 1000000; /* 1ms */ policy->cur = sc520_freq_get_cpu_frequency(0); - result = cpufreq_frequency_table_cpuinfo(policy, sc520_freq_table); - if (result) - return result; - - cpufreq_frequency_table_get_attr(sc520_freq_table, policy->cpu); - - return 0; + return cpufreq_table_validate_and_show(policy, sc520_freq_table); } -- cgit v1.2.3-70-g09d2 From c25d01b3e2407ac536bcd40f2d23fc5c5019fa23 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:35 +0530 Subject: cpufreq: sh: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Cc: Paul Mundt Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/sh-cpufreq.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/sh-cpufreq.c b/drivers/cpufreq/sh-cpufreq.c index ffc6d24b0cf..1362e8894ee 100644 --- a/drivers/cpufreq/sh-cpufreq.c +++ b/drivers/cpufreq/sh-cpufreq.c @@ -120,9 +120,9 @@ static int sh_cpufreq_cpu_init(struct cpufreq_policy *policy) if (freq_table) { int result; - result = cpufreq_frequency_table_cpuinfo(policy, freq_table); - if (!result) - cpufreq_frequency_table_get_attr(freq_table, cpu); + result = cpufreq_table_validate_and_show(policy, freq_table); + if (result) + return result; } else { dev_notice(dev, "no frequency table found, falling back " "to rate rounding.\n"); -- cgit v1.2.3-70-g09d2 From f1a707c023a9029487ad8f4f6afd1a953a2e31ff Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:36 +0530 Subject: cpufreq: sparc: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Cc: David S. Miller Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/sparc-us2e-cpufreq.c | 6 +----- drivers/cpufreq/sparc-us3-cpufreq.c | 7 +------ 2 files changed, 2 insertions(+), 11 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/sparc-us2e-cpufreq.c b/drivers/cpufreq/sparc-us2e-cpufreq.c index 63b3eae5ffd..8db0c1890c9 100644 --- a/drivers/cpufreq/sparc-us2e-cpufreq.c +++ b/drivers/cpufreq/sparc-us2e-cpufreq.c @@ -307,7 +307,6 @@ static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy) unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000; struct cpufreq_frequency_table *table = &us2e_freq_table[cpu].table[0]; - int ret; table[0].driver_data = 0; table[0].frequency = clock_tick / 1; @@ -325,10 +324,7 @@ static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = 0; policy->cur = clock_tick; - ret = cpufreq_frequency_table_cpuinfo(policy, table); - if (!ret) - cpufreq_frequency_table_get_attr(table, policy->cpu); - return ret; + return cpufreq_table_validate_and_show(policy, table); } static int us2e_freq_cpu_exit(struct cpufreq_policy *policy) diff --git a/drivers/cpufreq/sparc-us3-cpufreq.c b/drivers/cpufreq/sparc-us3-cpufreq.c index 985bc56b006..120a2df2bc7 100644 --- a/drivers/cpufreq/sparc-us3-cpufreq.c +++ b/drivers/cpufreq/sparc-us3-cpufreq.c @@ -168,7 +168,6 @@ static int __init us3_freq_cpu_init(struct cpufreq_policy *policy) unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000; struct cpufreq_frequency_table *table = &us3_freq_table[cpu].table[0]; - int ret; table[0].driver_data = 0; table[0].frequency = clock_tick / 1; @@ -182,11 +181,7 @@ static int __init us3_freq_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = 0; policy->cur = clock_tick; - ret = cpufreq_frequency_table_cpuinfo(policy, table); - if (!ret) - cpufreq_frequency_table_get_attr(table, policy->cpu); - - return ret; + return cpufreq_table_validate_and_show(policy, table); } static int us3_freq_cpu_exit(struct cpufreq_policy *policy) -- cgit v1.2.3-70-g09d2 From 4a1fe2bfc9e49c48a166d0229e09d3069893a8fa Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:37 +0530 Subject: cpufreq: spear: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/spear-cpufreq.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/spear-cpufreq.c b/drivers/cpufreq/spear-cpufreq.c index 19e364fa595..b86be6bd9b9 100644 --- a/drivers/cpufreq/spear-cpufreq.c +++ b/drivers/cpufreq/spear-cpufreq.c @@ -178,13 +178,12 @@ static int spear_cpufreq_init(struct cpufreq_policy *policy) { int ret; - ret = cpufreq_frequency_table_cpuinfo(policy, spear_cpufreq.freq_tbl); + ret = cpufreq_table_validate_and_show(policy, spear_cpufreq.freq_tbl); if (ret) { - pr_err("cpufreq_frequency_table_cpuinfo() failed"); + pr_err("cpufreq_table_validate_and_show() failed"); return ret; } - cpufreq_frequency_table_get_attr(spear_cpufreq.freq_tbl, policy->cpu); policy->cpuinfo.transition_latency = spear_cpufreq.transition_latency; policy->cur = spear_cpufreq_get(0); -- cgit v1.2.3-70-g09d2 From 5f3a2d39bb9dd4372c52fb2568c4520bcc91c8c4 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:38 +0530 Subject: cpufreq: speedstep: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Cc: David S. Miller Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/speedstep-centrino.c | 10 +--------- drivers/cpufreq/speedstep-ich.c | 9 +-------- drivers/cpufreq/speedstep-smi.c | 8 +------- 3 files changed, 3 insertions(+), 24 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c index f897d510584..f180561c363 100644 --- a/drivers/cpufreq/speedstep-centrino.c +++ b/drivers/cpufreq/speedstep-centrino.c @@ -345,7 +345,6 @@ static int centrino_cpu_init(struct cpufreq_policy *policy) struct cpuinfo_x86 *cpu = &cpu_data(policy->cpu); unsigned freq; unsigned l, h; - int ret; int i; /* Only Intel makes Enhanced Speedstep-capable CPUs */ @@ -402,15 +401,8 @@ static int centrino_cpu_init(struct cpufreq_policy *policy) pr_debug("centrino_cpu_init: cur=%dkHz\n", policy->cur); - ret = cpufreq_frequency_table_cpuinfo(policy, + return cpufreq_table_validate_and_show(policy, per_cpu(centrino_model, policy->cpu)->op_points); - if (ret) - return (ret); - - cpufreq_frequency_table_get_attr( - per_cpu(centrino_model, policy->cpu)->op_points, policy->cpu); - - return 0; } static int centrino_cpu_exit(struct cpufreq_policy *policy) diff --git a/drivers/cpufreq/speedstep-ich.c b/drivers/cpufreq/speedstep-ich.c index 5355abb69af..86a184eaa81 100644 --- a/drivers/cpufreq/speedstep-ich.c +++ b/drivers/cpufreq/speedstep-ich.c @@ -320,7 +320,6 @@ static void get_freqs_on_cpu(void *_get_freqs) static int speedstep_cpu_init(struct cpufreq_policy *policy) { - int result; unsigned int policy_cpu, speed; struct get_freqs gf; @@ -349,13 +348,7 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy) /* cpuinfo and default policy values */ policy->cur = speed; - result = cpufreq_frequency_table_cpuinfo(policy, speedstep_freqs); - if (result) - return result; - - cpufreq_frequency_table_get_attr(speedstep_freqs, policy->cpu); - - return 0; + return cpufreq_table_validate_and_show(policy, speedstep_freqs); } diff --git a/drivers/cpufreq/speedstep-smi.c b/drivers/cpufreq/speedstep-smi.c index abfba4f731e..f4d03186e0c 100644 --- a/drivers/cpufreq/speedstep-smi.c +++ b/drivers/cpufreq/speedstep-smi.c @@ -329,13 +329,7 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; policy->cur = speed; - result = cpufreq_frequency_table_cpuinfo(policy, speedstep_freqs); - if (result) - return result; - - cpufreq_frequency_table_get_attr(speedstep_freqs, policy->cpu); - - return 0; + return cpufreq_table_validate_and_show(policy, speedstep_freqs); } static int speedstep_cpu_exit(struct cpufreq_policy *policy) -- cgit v1.2.3-70-g09d2 From 2338799f3247ec19447a201baea8cf55bdc071d9 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:39 +0530 Subject: cpufreq: tegra: use cpufreq_table_validate_and_show() Lets use cpufreq_table_validate_and_show() instead of calling cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr(). Acked-by: Stephen Warren Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/tegra-cpufreq.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c index a7b876fdc1d..d45c1d80125 100644 --- a/drivers/cpufreq/tegra-cpufreq.c +++ b/drivers/cpufreq/tegra-cpufreq.c @@ -215,8 +215,7 @@ static int tegra_cpu_init(struct cpufreq_policy *policy) clk_prepare_enable(emc_clk); clk_prepare_enable(cpu_clk); - cpufreq_frequency_table_cpuinfo(policy, freq_table); - cpufreq_frequency_table_get_attr(freq_table, policy->cpu); + cpufreq_table_validate_and_show(policy, freq_table); policy->cur = tegra_getspeed(policy->cpu); target_cpu_speed[policy->cpu] = policy->cur; -- cgit v1.2.3-70-g09d2 From 2e6a5c80e6fa8fd3af6c2ffc5ad6073e798a1690 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:40 +0530 Subject: cpufreq: tegra: fix implementation of ->exit() ->exit() of drivers should call cpufreq_frequency_table_put_attr() if they have called cpufreq_frequency_table_get_attr() earlier in init() and they aren't required to validate their cpufreq table in exit by calling cpufreq_frequency_table_cpuinfo(). Tegra's driver wasn't calling cpufreq_frequency_table_put_attr() and was calling cpufreq_frequency_table_cpuinfo() in exit. Fix both these issues in it. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/tegra-cpufreq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c index d45c1d80125..e0140779b86 100644 --- a/drivers/cpufreq/tegra-cpufreq.c +++ b/drivers/cpufreq/tegra-cpufreq.c @@ -232,7 +232,7 @@ static int tegra_cpu_init(struct cpufreq_policy *policy) static int tegra_cpu_exit(struct cpufreq_policy *policy) { - cpufreq_frequency_table_cpuinfo(policy, freq_table); + cpufreq_frequency_table_put_attr(policy->cpu); clk_disable_unprepare(emc_clk); return 0; } -- cgit v1.2.3-70-g09d2 From 848cb944213e88e4929a7efcc1c92bb6b6445353 Mon Sep 17 00:00:00 2001 From: Hans-Christian Egtvedt Date: Mon, 16 Sep 2013 18:56:41 +0530 Subject: cpufreq: at32ap: add frequency table This patch adds a dynamically calculated frequency table to the at32ap driver. In short the architecture can scale in power of two between a maximum and minimum frequency. Min, max, and the steps in between are added to the table. Signed-off-by: Hans-Christian Egtvedt Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/at32ap-cpufreq.c | 49 +++++++++++++++++++++++++++++++++++++--- 1 file changed, 46 insertions(+), 3 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/at32ap-cpufreq.c b/drivers/cpufreq/at32ap-cpufreq.c index e0c38d93899..1d19fa59bc2 100644 --- a/drivers/cpufreq/at32ap-cpufreq.c +++ b/drivers/cpufreq/at32ap-cpufreq.c @@ -19,8 +19,10 @@ #include #include #include +#include static struct clk *cpuclk; +static struct cpufreq_frequency_table *freq_table; static int at32_verify_speed(struct cpufreq_policy *policy) { @@ -85,13 +87,17 @@ static int at32_set_target(struct cpufreq_policy *policy, static int __init at32_cpufreq_driver_init(struct cpufreq_policy *policy) { + unsigned int frequency, rate; + int retval, steps, i; + if (policy->cpu != 0) return -EINVAL; cpuclk = clk_get(NULL, "cpu"); if (IS_ERR(cpuclk)) { pr_debug("cpufreq: could not get CPU clk\n"); - return PTR_ERR(cpuclk); + retval = PTR_ERR(cpuclk); + goto out_err; } policy->cpuinfo.min_freq = (clk_round_rate(cpuclk, 1) + 500) / 1000; @@ -101,9 +107,46 @@ static int __init at32_cpufreq_driver_init(struct cpufreq_policy *policy) policy->min = policy->cpuinfo.min_freq; policy->max = policy->cpuinfo.max_freq; - printk("cpufreq: AT32AP CPU frequency driver\n"); + /* + * AVR32 CPU frequency rate scales in power of two between maximum and + * minimum, also add space for the table end marker. + * + * Further validate that the frequency is usable, and append it to the + * frequency table. + */ + steps = fls(policy->cpuinfo.max_freq / policy->cpuinfo.min_freq) + 1; + freq_table = kzalloc(steps * sizeof(struct cpufreq_frequency_table), + GFP_KERNEL); + if (!freq_table) { + retval = -ENOMEM; + goto out_err_put_clk; + } - return 0; + frequency = policy->cpuinfo.max_freq; + for (i = 0; i < (steps - 1); i++) { + rate = clk_round_rate(cpuclk, frequency * 1000) / 1000; + + if (rate != frequency) + freq_table[i].frequency = CPUFREQ_ENTRY_INVALID; + else + freq_table[i].frequency = frequency; + + frequency /= 2; + } + + freq_table[steps - 1].frequency = CPUFREQ_TABLE_END; + + retval = cpufreq_table_validate_and_show(policy, freq_table); + if (!retval) { + printk("cpufreq: AT32AP CPU frequency driver\n"); + return 0; + } + + kfree(freq_table); +out_err_put_clk: + clk_put(cpuclk); +out_err: + return retval; } static struct cpufreq_driver at32_driver = { -- cgit v1.2.3-70-g09d2 From 2457dac670f287b260d50792988f4788f403ca32 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:42 +0530 Subject: cpufreq: arm_big_little: call cpufreq_frequency_table_put_attr() Drivers which have an exit path must call cpufreq_frequency_table_put_attr() if they have called cpufreq_frequency_table_get_attr() in their init path. This driver was missing this part and is fixed with this patch. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/arm_big_little.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c index 507027388ae..9acfb82c1cf 100644 --- a/drivers/cpufreq/arm_big_little.c +++ b/drivers/cpufreq/arm_big_little.c @@ -198,6 +198,7 @@ static int bL_cpufreq_exit(struct cpufreq_policy *policy) return -ENODEV; } + cpufreq_frequency_table_put_attr(policy->cpu); put_cluster_clk_and_freq_table(cpu_dev); dev_dbg(cpu_dev, "%s: Exited, cpu: %d\n", __func__, policy->cpu); -- cgit v1.2.3-70-g09d2 From 52bcd9986ae6adc69b5e986c09da6fede8ed8119 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:43 +0530 Subject: cpufreq: blackfin: call cpufreq_frequency_table_put_attr() Drivers which have an exit path must call cpufreq_frequency_table_put_attr() if they have called cpufreq_frequency_table_get_attr() in their init path. This driver was missing this part and is fixed with this patch. Cc: Steven Miao Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/blackfin-cpufreq.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/blackfin-cpufreq.c b/drivers/cpufreq/blackfin-cpufreq.c index 54c0a0c2075..0e76c09552b 100644 --- a/drivers/cpufreq/blackfin-cpufreq.c +++ b/drivers/cpufreq/blackfin-cpufreq.c @@ -213,6 +213,13 @@ static int __bfin_cpu_init(struct cpufreq_policy *policy) return cpufreq_table_validate_and_show(policy, bfin_freq_table); } +static int __bfin_cpu_exit(struct cpufreq_policy *policy) +{ + + cpufreq_frequency_table_put_attr(policy->cpu); + return 0; +} + static struct freq_attr *bfin_freq_attr[] = { &cpufreq_freq_attr_scaling_available_freqs, NULL, @@ -223,6 +230,7 @@ static struct cpufreq_driver bfin_driver = { .target = bfin_target, .get = bfin_getfreq_khz, .init = __bfin_cpu_init, + .exit = __bfin_cpu_exit, .name = "bfin cpufreq", .attr = bfin_freq_attr, }; -- cgit v1.2.3-70-g09d2 From 724b9ea0e2ebdef35c05fb19ab3690edf52d8708 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:44 +0530 Subject: cpufreq: exynos: call cpufreq_frequency_table_put_attr() Drivers which have an exit path must call cpufreq_frequency_table_put_attr() if they have called cpufreq_frequency_table_get_attr() in their init path. This driver was missing this part and is fixed with this patch. Acked-by: Amit Daniel Kachhap Acked-by: Kukjin Kim Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/exynos5440-cpufreq.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c index b62967148c8..24df155f871 100644 --- a/drivers/cpufreq/exynos5440-cpufreq.c +++ b/drivers/cpufreq/exynos5440-cpufreq.c @@ -339,12 +339,19 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy) return 0; } +static int exynos_cpufreq_cpu_exit(struct cpufreq_policy *policy) +{ + cpufreq_frequency_table_put_attr(policy->cpu); + return 0; +} + static struct cpufreq_driver exynos_driver = { .flags = CPUFREQ_STICKY, .verify = exynos_verify_speed, .target = exynos_target, .get = exynos_getspeed, .init = exynos_cpufreq_cpu_init, + .exit = exynos_cpufreq_cpu_exit, .name = CPUFREQ_NAME, }; -- cgit v1.2.3-70-g09d2 From 999fe7951a49fa885f52df85c4f91c913858a232 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:45 +0530 Subject: cpufreq: loongson2: call cpufreq_frequency_table_put_attr() Drivers which have an exit path must call cpufreq_frequency_table_put_attr() if they have called cpufreq_frequency_table_get_attr() in their init path. This driver was missing this part and is fixed with this patch. Cc: John Crispin Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/loongson2_cpufreq.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c index 5dd3692441f..cec4e723d61 100644 --- a/drivers/cpufreq/loongson2_cpufreq.c +++ b/drivers/cpufreq/loongson2_cpufreq.c @@ -145,6 +145,7 @@ static int loongson2_cpufreq_verify(struct cpufreq_policy *policy) static int loongson2_cpufreq_exit(struct cpufreq_policy *policy) { + cpufreq_frequency_table_put_attr(policy->cpu); clk_put(cpuclk); return 0; } -- cgit v1.2.3-70-g09d2 From 42a4df0026b36d2a8fcfb6a3e79a3d0e1b05714d Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 16 Sep 2013 18:56:46 +0530 Subject: cpufreq: omap: call cpufreq_frequency_table_put_attr() Drivers which have an exit path must call cpufreq_frequency_table_put_attr() if they have called cpufreq_frequency_table_get_attr() in their init path. This driver was missing this part and is fixed with this patch. Cc: Santosh Shilimkar Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/omap-cpufreq.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c index b68ce4ed294..091f2333433 100644 --- a/drivers/cpufreq/omap-cpufreq.c +++ b/drivers/cpufreq/omap-cpufreq.c @@ -221,6 +221,7 @@ fail_ck: static int omap_cpu_exit(struct cpufreq_policy *policy) { + cpufreq_frequency_table_put_attr(policy->cpu); freq_table_free(); clk_put(mpu_clk); return 0; -- cgit v1.2.3-70-g09d2 From 1b750e3bdae5b2d0f3d377b0c56e7465f85b67f2 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 2 Oct 2013 14:13:09 +0530 Subject: cpufreq: make return type of lock_policy_rwsem_{read|write}() as void lock_policy_rwsem_{read|write}() currently has return type of int, but it always returns zero and hence its return type should be void instead. This patch makes that change and modifies all of the users accordingly. Reported-by: Jon Medhurst Signed-off-by: Viresh Kumar Reviewed-by: Srivatsa S. Bhat Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq.c | 38 +++++++++++--------------------------- 1 file changed, 11 insertions(+), 27 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 04548f7023a..eb993d997be 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -67,13 +67,11 @@ static DEFINE_PER_CPU(char[CPUFREQ_NAME_LEN], cpufreq_cpu_governor); static DEFINE_PER_CPU(struct rw_semaphore, cpu_policy_rwsem); #define lock_policy_rwsem(mode, cpu) \ -static int lock_policy_rwsem_##mode(int cpu) \ +static void lock_policy_rwsem_##mode(int cpu) \ { \ struct cpufreq_policy *policy = per_cpu(cpufreq_cpu_data, cpu); \ BUG_ON(!policy); \ down_##mode(&per_cpu(cpu_policy_rwsem, policy->cpu)); \ - \ - return 0; \ } lock_policy_rwsem(read, cpu); @@ -653,13 +651,12 @@ static ssize_t show(struct kobject *kobj, struct attribute *attr, char *buf) { struct cpufreq_policy *policy = to_policy(kobj); struct freq_attr *fattr = to_attr(attr); - ssize_t ret = -EINVAL; + ssize_t ret; if (!down_read_trylock(&cpufreq_rwsem)) - goto exit; + return -EINVAL; - if (lock_policy_rwsem_read(policy->cpu) < 0) - goto up_read; + lock_policy_rwsem_read(policy->cpu); if (fattr->show) ret = fattr->show(policy, buf); @@ -667,10 +664,8 @@ static ssize_t show(struct kobject *kobj, struct attribute *attr, char *buf) ret = -EIO; unlock_policy_rwsem_read(policy->cpu); - -up_read: up_read(&cpufreq_rwsem); -exit: + return ret; } @@ -689,8 +684,7 @@ static ssize_t store(struct kobject *kobj, struct attribute *attr, if (!down_read_trylock(&cpufreq_rwsem)) goto unlock; - if (lock_policy_rwsem_write(policy->cpu) < 0) - goto up_read; + lock_policy_rwsem_write(policy->cpu); if (fattr->store) ret = fattr->store(policy, buf, count); @@ -699,7 +693,6 @@ static ssize_t store(struct kobject *kobj, struct attribute *attr, unlock_policy_rwsem_write(policy->cpu); -up_read: up_read(&cpufreq_rwsem); unlock: put_online_cpus(); @@ -1147,7 +1140,7 @@ static int cpufreq_nominate_new_policy_cpu(struct cpufreq_policy *policy, if (ret) { pr_err("%s: Failed to move kobj: %d", __func__, ret); - WARN_ON(lock_policy_rwsem_write(old_cpu)); + lock_policy_rwsem_write(old_cpu); cpumask_set_cpu(old_cpu, policy->cpus); unlock_policy_rwsem_write(old_cpu); @@ -1243,7 +1236,7 @@ static int __cpufreq_remove_dev_finish(struct device *dev, return -EINVAL; } - WARN_ON(lock_policy_rwsem_write(cpu)); + lock_policy_rwsem_write(cpu); cpus = cpumask_weight(policy->cpus); if (cpus > 1) @@ -1466,14 +1459,11 @@ unsigned int cpufreq_get(unsigned int cpu) if (!down_read_trylock(&cpufreq_rwsem)) return 0; - if (unlikely(lock_policy_rwsem_read(cpu))) - goto out_policy; + lock_policy_rwsem_read(cpu); ret_freq = __cpufreq_get(cpu); unlock_policy_rwsem_read(cpu); - -out_policy: up_read(&cpufreq_rwsem); return ret_freq; @@ -1697,14 +1687,12 @@ int cpufreq_driver_target(struct cpufreq_policy *policy, { int ret = -EINVAL; - if (unlikely(lock_policy_rwsem_write(policy->cpu))) - goto fail; + lock_policy_rwsem_write(policy->cpu); ret = __cpufreq_driver_target(policy, target_freq, relation); unlock_policy_rwsem_write(policy->cpu); -fail: return ret; } EXPORT_SYMBOL_GPL(cpufreq_driver_target); @@ -1995,10 +1983,7 @@ int cpufreq_update_policy(unsigned int cpu) goto no_policy; } - if (unlikely(lock_policy_rwsem_write(cpu))) { - ret = -EINVAL; - goto fail; - } + lock_policy_rwsem_write(cpu); pr_debug("updating policy for CPU %u\n", cpu); memcpy(&new_policy, policy, sizeof(*policy)); @@ -2027,7 +2012,6 @@ int cpufreq_update_policy(unsigned int cpu) unlock_policy_rwsem_write(cpu); -fail: cpufreq_cpu_put(policy); no_policy: return ret; -- cgit v1.2.3-70-g09d2 From 67a29e558b17a923c3a53c348315c572b8ca261a Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 2 Oct 2013 14:13:11 +0530 Subject: cpufreq: remove invalid comment from __cpufreq_remove_dev() Some section of kerneldoc comment for __cpufreq_remove_dev() is invalid now. Remove it. Suggested-by: Srivatsa S. Bhat Signed-off-by: Viresh Kumar Reviewed-by: Srivatsa S. Bhat Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index eb993d997be..c4d3d7601e5 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1306,8 +1306,6 @@ static int __cpufreq_remove_dev_finish(struct device *dev, * __cpufreq_remove_dev - remove a CPU device * * Removes the cpufreq interface for a CPU device. - * Caller should already have policy_rwsem in write mode for this CPU. - * This routine frees the rwsem before returning. */ static inline int __cpufreq_remove_dev(struct device *dev, struct subsys_interface *sif, -- cgit v1.2.3-70-g09d2 From bbdd04ab1f375ef46a0e2d98de439863d35e4d3e Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 2 Oct 2013 14:13:12 +0530 Subject: cpufreq: Remove extra blank line We don't need a blank line just at start of a block, lets remove it. Signed-off-by: Viresh Kumar Reviewed-by: Srivatsa S. Bhat Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index c4d3d7601e5..c71a87989bb 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1201,7 +1201,6 @@ static int __cpufreq_remove_dev_prepare(struct device *dev, if (!frozen) sysfs_remove_link(&dev->kobj, "cpufreq"); } else if (cpus > 1) { - new_cpu = cpufreq_nominate_new_policy_cpu(policy, cpu, frozen); if (new_cpu >= 0) { update_policy_cpu(policy, new_cpu); -- cgit v1.2.3-70-g09d2 From 75949c9a1fe0fd07983788449059337edac2b9f6 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 2 Oct 2013 14:13:13 +0530 Subject: cpufreq: don't break string in print statements As a rule its better not to break string (quoted inside "") in a print statement even if it crosses 80 column boundary as that may introduce bugs and so this patch rewrites one of the print statements.. Signed-off-by: Viresh Kumar Reviewed-by: Srivatsa S. Bhat Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index c71a87989bb..0255c081b4e 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1206,8 +1206,8 @@ static int __cpufreq_remove_dev_prepare(struct device *dev, update_policy_cpu(policy, new_cpu); if (!frozen) { - pr_debug("%s: policy Kobject moved to cpu: %d " - "from: %d\n",__func__, new_cpu, cpu); + pr_debug("%s: policy Kobject moved to cpu: %d from: %d\n", + __func__, new_cpu, cpu); } } } -- cgit v1.2.3-70-g09d2 From 27a862e98341226a50835f29aa26ffa528215ecc Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 2 Oct 2013 14:13:14 +0530 Subject: cpufreq: remove __cpufreq_remove_dev() Nobody except cpufreq_remove_dev() calls __cpufreq_remove_dev() and so we don't need two separate routines here. Merge code from __cpufreq_remove_dev() into cpufreq_remove_dev() and get rid of __cpufreq_remove_dev(). Signed-off-by: Viresh Kumar Reviewed-by: Srivatsa S. Bhat Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq.c | 26 ++++++++------------------ 1 file changed, 8 insertions(+), 18 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 0255c081b4e..b04a5d6f13d 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1302,34 +1302,24 @@ static int __cpufreq_remove_dev_finish(struct device *dev, } /** - * __cpufreq_remove_dev - remove a CPU device + * cpufreq_remove_dev - remove a CPU device * * Removes the cpufreq interface for a CPU device. */ -static inline int __cpufreq_remove_dev(struct device *dev, - struct subsys_interface *sif, - bool frozen) -{ - int ret; - - ret = __cpufreq_remove_dev_prepare(dev, sif, frozen); - - if (!ret) - ret = __cpufreq_remove_dev_finish(dev, sif, frozen); - - return ret; -} - static int cpufreq_remove_dev(struct device *dev, struct subsys_interface *sif) { unsigned int cpu = dev->id; - int retval; + int ret; if (cpu_is_offline(cpu)) return 0; - retval = __cpufreq_remove_dev(dev, sif, false); - return retval; + ret = __cpufreq_remove_dev_prepare(dev, sif, false); + + if (!ret) + ret = __cpufreq_remove_dev_finish(dev, sif, false); + + return ret; } static void handle_update(struct work_struct *work) -- cgit v1.2.3-70-g09d2 From 77db50c4eb1991d6e88254390ec368e1d23a8fa5 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 2 Oct 2013 14:13:15 +0530 Subject: cpufreq: Optimize cpufreq_frequency_table_verify() cpufreq_frequency_table_verify() is rewritten here to make it more logical and efficient. - merge multiple lines for variable declarations together. - quit early if any frequency between min/max is found. - don't call cpufreq_verify_within_limits() in case any valid freq is found as it is of no use. - rename the count variable as found and change its type to boolean. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/freq_table.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/freq_table.c b/drivers/cpufreq/freq_table.c index 11f6fa92a58..10f3cfb6b51 100644 --- a/drivers/cpufreq/freq_table.c +++ b/drivers/cpufreq/freq_table.c @@ -54,9 +54,8 @@ EXPORT_SYMBOL_GPL(cpufreq_frequency_table_cpuinfo); int cpufreq_frequency_table_verify(struct cpufreq_policy *policy, struct cpufreq_frequency_table *table) { - unsigned int next_larger = ~0; - unsigned int i; - unsigned int count = 0; + unsigned int next_larger = ~0, freq, i = 0; + bool found = false; pr_debug("request for verification of policy (%u - %u kHz) for cpu %u\n", policy->min, policy->max, policy->cpu); @@ -64,21 +63,23 @@ int cpufreq_frequency_table_verify(struct cpufreq_policy *policy, cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, policy->cpuinfo.max_freq); - for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++) { - unsigned int freq = table[i].frequency; + for (; freq = table[i].frequency, freq != CPUFREQ_TABLE_END; i++) { if (freq == CPUFREQ_ENTRY_INVALID) continue; - if ((freq >= policy->min) && (freq <= policy->max)) - count++; - else if ((next_larger > freq) && (freq > policy->max)) + if ((freq >= policy->min) && (freq <= policy->max)) { + found = true; + break; + } + + if ((next_larger > freq) && (freq > policy->max)) next_larger = freq; } - if (!count) + if (!found) { policy->max = next_larger; - - cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); + cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, + policy->cpuinfo.max_freq); + } pr_debug("verification lead to (%u - %u kHz) for cpu %u\n", policy->min, policy->max, policy->cpu); -- cgit v1.2.3-70-g09d2 From 037ce8397d23b2f84ccfb879cf4b43277b0454e3 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 2 Oct 2013 14:13:16 +0530 Subject: cpufreq: rename __cpufreq_set_policy() as cpufreq_set_policy() Earlier there used to be two functions named __cpufreq_set_policy() and cpufreq_set_policy(), but now we only have a single routine lets name it cpufreq_set_policy() instead of __cpufreq_set_policy(). This also removes some invalid comments or fixes some incorrect comments. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq.c | 22 +++++++++------------- 1 file changed, 9 insertions(+), 13 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index b04a5d6f13d..3a811df43e1 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -412,7 +412,7 @@ show_one(scaling_min_freq, min); show_one(scaling_max_freq, max); show_one(scaling_cur_freq, cur); -static int __cpufreq_set_policy(struct cpufreq_policy *policy, +static int cpufreq_set_policy(struct cpufreq_policy *policy, struct cpufreq_policy *new_policy); /** @@ -433,7 +433,7 @@ static ssize_t store_##file_name \ if (ret != 1) \ return -EINVAL; \ \ - ret = __cpufreq_set_policy(policy, &new_policy); \ + ret = cpufreq_set_policy(policy, &new_policy); \ policy->user_policy.object = policy->object; \ \ return ret ? ret : count; \ @@ -491,11 +491,7 @@ static ssize_t store_scaling_governor(struct cpufreq_policy *policy, &new_policy.governor)) return -EINVAL; - /* - * Do not use cpufreq_set_policy here or the user_policy.max - * will be wrongly overridden - */ - ret = __cpufreq_set_policy(policy, &new_policy); + ret = cpufreq_set_policy(policy, &new_policy); policy->user_policy.policy = policy->policy; policy->user_policy.governor = policy->governor; @@ -837,11 +833,11 @@ static void cpufreq_init_policy(struct cpufreq_policy *policy) int ret = 0; memcpy(&new_policy, policy, sizeof(*policy)); - /* assure that the starting sequence is run in __cpufreq_set_policy */ + /* assure that the starting sequence is run in cpufreq_set_policy */ policy->governor = NULL; /* set default policy */ - ret = __cpufreq_set_policy(policy, &new_policy); + ret = cpufreq_set_policy(policy, &new_policy); policy->user_policy.policy = policy->policy; policy->user_policy.governor = policy->governor; @@ -1846,10 +1842,10 @@ int cpufreq_get_policy(struct cpufreq_policy *policy, unsigned int cpu) EXPORT_SYMBOL(cpufreq_get_policy); /* - * data : current policy. - * policy : policy to be set. + * policy : current policy. + * new_policy: policy to be set. */ -static int __cpufreq_set_policy(struct cpufreq_policy *policy, +static int cpufreq_set_policy(struct cpufreq_policy *policy, struct cpufreq_policy *new_policy) { int ret = 0, failed = 1; @@ -1995,7 +1991,7 @@ int cpufreq_update_policy(unsigned int cpu) } } - ret = __cpufreq_set_policy(policy, &new_policy); + ret = cpufreq_set_policy(policy, &new_policy); unlock_policy_rwsem_write(cpu); -- cgit v1.2.3-70-g09d2 From 0b981e70748861a3e10ea2e2a689bdcee3e15085 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 2 Oct 2013 14:13:18 +0530 Subject: cpufreq: use cpufreq_driver->flags to mark CPUFREQ_HAVE_GOVERNOR_PER_POLICY Use cpufreq_driver->flags to mark CPUFREQ_HAVE_GOVERNOR_PER_POLICY instead of a separate field within cpufreq_driver. This will save some bytes of memory. Signed-off-by: Viresh Kumar Reviewed-by: Srivatsa S. Bhat Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/arm_big_little.c | 4 ++-- drivers/cpufreq/cpufreq.c | 2 +- drivers/cpufreq/cpufreq_governor.h | 5 ++++- include/linux/cpufreq.h | 15 ++++++++------- 4 files changed, 15 insertions(+), 11 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c index 9acfb82c1cf..2c7c1349482 100644 --- a/drivers/cpufreq/arm_big_little.c +++ b/drivers/cpufreq/arm_big_little.c @@ -213,13 +213,13 @@ static struct freq_attr *bL_cpufreq_attr[] = { static struct cpufreq_driver bL_cpufreq_driver = { .name = "arm-big-little", - .flags = CPUFREQ_STICKY, + .flags = CPUFREQ_STICKY | + CPUFREQ_HAVE_GOVERNOR_PER_POLICY, .verify = bL_cpufreq_verify_policy, .target = bL_cpufreq_set_target, .get = bL_cpufreq_get, .init = bL_cpufreq_init, .exit = bL_cpufreq_exit, - .have_governor_per_policy = true, .attr = bL_cpufreq_attr, }; diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 3a811df43e1..fc9110c9f10 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -133,7 +133,7 @@ static DEFINE_MUTEX(cpufreq_governor_mutex); bool have_governor_per_policy(void) { - return cpufreq_driver->have_governor_per_policy; + return !!(cpufreq_driver->flags & CPUFREQ_HAVE_GOVERNOR_PER_POLICY); } EXPORT_SYMBOL_GPL(have_governor_per_policy); diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h index 88cd39f7b0e..b5f2b861894 100644 --- a/drivers/cpufreq/cpufreq_governor.h +++ b/drivers/cpufreq/cpufreq_governor.h @@ -191,7 +191,10 @@ struct common_dbs_data { struct attribute_group *attr_group_gov_sys; /* one governor - system */ struct attribute_group *attr_group_gov_pol; /* one governor - policy */ - /* Common data for platforms that don't set have_governor_per_policy */ + /* + * Common data for platforms that don't set + * CPUFREQ_HAVE_GOVERNOR_PER_POLICY + */ struct dbs_data *gdbs_data; struct cpu_dbs_common_info *(*get_cpu_cdbs)(int cpu); diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 00c80a5372d..24b84f7e7f8 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -180,13 +180,6 @@ __ATTR(_name, 0644, show_##_name, store_##_name) struct cpufreq_driver { char name[CPUFREQ_NAME_LEN]; u8 flags; - /* - * This should be set by platforms having multiple clock-domains, i.e. - * supporting multiple policies. With this sysfs directories of governor - * would be created in cpu/cpu/cpufreq/ directory and so they can - * use the same governor with different tunables for different clusters. - */ - bool have_governor_per_policy; /* needed by all drivers */ int (*init) (struct cpufreq_policy *policy); @@ -220,6 +213,14 @@ struct cpufreq_driver { #define CPUFREQ_PM_NO_WARN (1 << 2) /* don't warn on suspend/resume speed mismatches */ +/* + * This should be set by platforms having multiple clock-domains, i.e. + * supporting multiple policies. With this sysfs directories of governor would + * be created in cpu/cpu/cpufreq/ directory and so they can use the same + * governor with different tunables for different clusters. + */ +#define CPUFREQ_HAVE_GOVERNOR_PER_POLICY (1 << 3) + int cpufreq_register_driver(struct cpufreq_driver *driver_data); int cpufreq_unregister_driver(struct cpufreq_driver *driver_data); -- cgit v1.2.3-70-g09d2 From be49e3465f222b4b796be8a21d14afbfd8f5d20f Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 2 Oct 2013 14:13:19 +0530 Subject: cpufreq: add new routine cpufreq_verify_within_cpu_limits() Most of the users of cpufreq_verify_within_limits() calls it for limiting with min/max from policy->cpuinfo. We can make that code simple by introducing another routine which will do this for them automatically. This patch adds another routine cpufreq_verify_within_cpu_limits() and updates others to use it. Signed-off-by: Viresh Kumar Acked-by: Dirk Brandewie Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq-nforce2.c | 4 +--- drivers/cpufreq/davinci-cpufreq.c | 4 +--- drivers/cpufreq/freq_table.c | 6 ++---- drivers/cpufreq/integrator-cpufreq.c | 9 ++------- drivers/cpufreq/intel_pstate.c | 4 +--- drivers/cpufreq/longrun.c | 4 +--- drivers/cpufreq/pcc-cpufreq.c | 3 +-- drivers/cpufreq/sh-cpufreq.c | 7 ++----- drivers/cpufreq/unicore2-cpufreq.c | 4 +--- include/linux/cpufreq.h | 7 +++++++ 10 files changed, 19 insertions(+), 33 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cpufreq-nforce2.c b/drivers/cpufreq/cpufreq-nforce2.c index b83d45f6857..56c964c16a6 100644 --- a/drivers/cpufreq/cpufreq-nforce2.c +++ b/drivers/cpufreq/cpufreq-nforce2.c @@ -303,9 +303,7 @@ static int nforce2_verify(struct cpufreq_policy *policy) if (policy->min < (fsb_pol_max * fid * 100)) policy->max = (fsb_pol_max + 1) * fid * 100; - cpufreq_verify_within_limits(policy, - policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); + cpufreq_verify_within_cpu_limits(policy); return 0; } diff --git a/drivers/cpufreq/davinci-cpufreq.c b/drivers/cpufreq/davinci-cpufreq.c index f67196e21fc..ba03e6f91d4 100644 --- a/drivers/cpufreq/davinci-cpufreq.c +++ b/drivers/cpufreq/davinci-cpufreq.c @@ -50,9 +50,7 @@ static int davinci_verify_speed(struct cpufreq_policy *policy) if (policy->cpu) return -EINVAL; - cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); - + cpufreq_verify_within_cpu_limits(policy); policy->min = clk_round_rate(armclk, policy->min * 1000) / 1000; policy->max = clk_round_rate(armclk, policy->max * 1000) / 1000; cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, diff --git a/drivers/cpufreq/freq_table.c b/drivers/cpufreq/freq_table.c index 10f3cfb6b51..b9336edb9bd 100644 --- a/drivers/cpufreq/freq_table.c +++ b/drivers/cpufreq/freq_table.c @@ -60,8 +60,7 @@ int cpufreq_frequency_table_verify(struct cpufreq_policy *policy, pr_debug("request for verification of policy (%u - %u kHz) for cpu %u\n", policy->min, policy->max, policy->cpu); - cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); + cpufreq_verify_within_cpu_limits(policy); for (; freq = table[i].frequency, freq != CPUFREQ_TABLE_END; i++) { if (freq == CPUFREQ_ENTRY_INVALID) @@ -77,8 +76,7 @@ int cpufreq_frequency_table_verify(struct cpufreq_policy *policy, if (!found) { policy->max = next_larger; - cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); + cpufreq_verify_within_cpu_limits(policy); } pr_debug("verification lead to (%u - %u kHz) for cpu %u\n", diff --git a/drivers/cpufreq/integrator-cpufreq.c b/drivers/cpufreq/integrator-cpufreq.c index f7c99df0880..8152a9bb7e2 100644 --- a/drivers/cpufreq/integrator-cpufreq.c +++ b/drivers/cpufreq/integrator-cpufreq.c @@ -59,9 +59,7 @@ static int integrator_verify_policy(struct cpufreq_policy *policy) { struct icst_vco vco; - cpufreq_verify_within_limits(policy, - policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); + cpufreq_verify_within_cpu_limits(policy); vco = icst_hz_to_vco(&cclk_params, policy->max * 1000); policy->max = icst_hz(&cclk_params, vco) / 1000; @@ -69,10 +67,7 @@ static int integrator_verify_policy(struct cpufreq_policy *policy) vco = icst_hz_to_vco(&cclk_params, policy->min * 1000); policy->min = icst_hz(&cclk_params, vco) / 1000; - cpufreq_verify_within_limits(policy, - policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); - + cpufreq_verify_within_cpu_limits(policy); return 0; } diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 9733f29ed14..a02bd77cbfe 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -611,9 +611,7 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy) static int intel_pstate_verify_policy(struct cpufreq_policy *policy) { - cpufreq_verify_within_limits(policy, - policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); + cpufreq_verify_within_cpu_limits(policy); if ((policy->policy != CPUFREQ_POLICY_POWERSAVE) && (policy->policy != CPUFREQ_POLICY_PERFORMANCE)) diff --git a/drivers/cpufreq/longrun.c b/drivers/cpufreq/longrun.c index 5aa031612d5..074971b1263 100644 --- a/drivers/cpufreq/longrun.c +++ b/drivers/cpufreq/longrun.c @@ -129,9 +129,7 @@ static int longrun_verify_policy(struct cpufreq_policy *policy) return -EINVAL; policy->cpu = 0; - cpufreq_verify_within_limits(policy, - policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); + cpufreq_verify_within_cpu_limits(policy); if ((policy->policy != CPUFREQ_POLICY_POWERSAVE) && (policy->policy != CPUFREQ_POLICY_PERFORMANCE)) diff --git a/drivers/cpufreq/pcc-cpufreq.c b/drivers/cpufreq/pcc-cpufreq.c index d81c4e5ea0a..78787e965e0 100644 --- a/drivers/cpufreq/pcc-cpufreq.c +++ b/drivers/cpufreq/pcc-cpufreq.c @@ -111,8 +111,7 @@ static struct pcc_cpu __percpu *pcc_cpu_info; static int pcc_cpufreq_verify(struct cpufreq_policy *policy) { - cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); + cpufreq_verify_within_cpu_limits(policy); return 0; } diff --git a/drivers/cpufreq/sh-cpufreq.c b/drivers/cpufreq/sh-cpufreq.c index 1362e8894ee..f1fb944d714 100644 --- a/drivers/cpufreq/sh-cpufreq.c +++ b/drivers/cpufreq/sh-cpufreq.c @@ -87,15 +87,12 @@ static int sh_cpufreq_verify(struct cpufreq_policy *policy) if (freq_table) return cpufreq_frequency_table_verify(policy, freq_table); - cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); + cpufreq_verify_within_cpu_limits(policy); policy->min = (clk_round_rate(cpuclk, 1) + 500) / 1000; policy->max = (clk_round_rate(cpuclk, ~0UL) + 500) / 1000; - cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); - + cpufreq_verify_within_cpu_limits(policy); return 0; } diff --git a/drivers/cpufreq/unicore2-cpufreq.c b/drivers/cpufreq/unicore2-cpufreq.c index b225f04d8ae..14e6d310635 100644 --- a/drivers/cpufreq/unicore2-cpufreq.c +++ b/drivers/cpufreq/unicore2-cpufreq.c @@ -29,9 +29,7 @@ static int ucv2_verify_speed(struct cpufreq_policy *policy) if (policy->cpu) return -EINVAL; - cpufreq_verify_within_limits(policy, - policy->cpuinfo.min_freq, policy->cpuinfo.max_freq); - + cpufreq_verify_within_cpu_limits(policy); return 0; } diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 24b84f7e7f8..c7495915932 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -242,6 +242,13 @@ static inline void cpufreq_verify_within_limits(struct cpufreq_policy *policy, return; } +static inline void +cpufreq_verify_within_cpu_limits(struct cpufreq_policy *policy) +{ + cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, + policy->cpuinfo.max_freq); +} + /********************************************************************* * CPUFREQ NOTIFIER INTERFACE * *********************************************************************/ -- cgit v1.2.3-70-g09d2 From 184345129c53e76069c209f9912ed7c457eceb31 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:27:55 +0530 Subject: cpufreq: define generic .attr, .exit() and .verify() routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch introduces generic .attr, .exit() and .verify() cpufreq drivers. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/freq_table.c | 20 ++++++++++++++++++++ include/linux/cpufreq.h | 8 ++++++++ 2 files changed, 28 insertions(+) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/freq_table.c b/drivers/cpufreq/freq_table.c index b9336edb9bd..3458d27f63b 100644 --- a/drivers/cpufreq/freq_table.c +++ b/drivers/cpufreq/freq_table.c @@ -86,6 +86,20 @@ int cpufreq_frequency_table_verify(struct cpufreq_policy *policy, } EXPORT_SYMBOL_GPL(cpufreq_frequency_table_verify); +/* + * Generic routine to verify policy & frequency table, requires driver to call + * cpufreq_frequency_table_get_attr() prior to it. + */ +int cpufreq_generic_frequency_table_verify(struct cpufreq_policy *policy) +{ + struct cpufreq_frequency_table *table = + cpufreq_frequency_get_table(policy->cpu); + if (!table) + return -ENODEV; + + return cpufreq_frequency_table_verify(policy, table); +} +EXPORT_SYMBOL_GPL(cpufreq_generic_frequency_table_verify); int cpufreq_frequency_table_target(struct cpufreq_policy *policy, struct cpufreq_frequency_table *table, @@ -199,6 +213,12 @@ struct freq_attr cpufreq_freq_attr_scaling_available_freqs = { }; EXPORT_SYMBOL_GPL(cpufreq_freq_attr_scaling_available_freqs); +struct freq_attr *cpufreq_generic_attr[] = { + &cpufreq_freq_attr_scaling_available_freqs, + NULL, +}; +EXPORT_SYMBOL_GPL(cpufreq_generic_attr); + /* * if you use these, you must assure that the frequency table is valid * all the time between get_attr and put_attr! diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index c7495915932..36ccd0bf130 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -401,6 +401,7 @@ int cpufreq_frequency_table_cpuinfo(struct cpufreq_policy *policy, int cpufreq_frequency_table_verify(struct cpufreq_policy *policy, struct cpufreq_frequency_table *table); +int cpufreq_generic_frequency_table_verify(struct cpufreq_policy *policy); int cpufreq_frequency_table_target(struct cpufreq_policy *policy, struct cpufreq_frequency_table *table, @@ -416,10 +417,17 @@ struct cpufreq_frequency_table *cpufreq_frequency_get_table(unsigned int cpu); /* the following are really really optional */ extern struct freq_attr cpufreq_freq_attr_scaling_available_freqs; +extern struct freq_attr *cpufreq_generic_attr[]; void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table, unsigned int cpu); void cpufreq_frequency_table_put_attr(unsigned int cpu); int cpufreq_table_validate_and_show(struct cpufreq_policy *policy, struct cpufreq_frequency_table *table); +static inline int cpufreq_generic_exit(struct cpufreq_policy *policy) +{ + cpufreq_frequency_table_put_attr(policy->cpu); + return 0; +} + #endif /* _LINUX_CPUFREQ_H */ -- cgit v1.2.3-70-g09d2 From db9be2194a829b26d66a2a25e590d2fc39179ba3 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:27:56 +0530 Subject: cpufreq: acpi: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses the generic verify routine in the ACPI driver. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/acpi-cpufreq.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c index d9932111a68..94a5a1d1eec 100644 --- a/drivers/cpufreq/acpi-cpufreq.c +++ b/drivers/cpufreq/acpi-cpufreq.c @@ -516,15 +516,6 @@ out: return result; } -static int acpi_cpufreq_verify(struct cpufreq_policy *policy) -{ - struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu); - - pr_debug("acpi_cpufreq_verify\n"); - - return cpufreq_frequency_table_verify(policy, data->freq_table); -} - static unsigned long acpi_cpufreq_guess_freq(struct acpi_cpufreq_data *data, unsigned int cpu) { @@ -927,7 +918,7 @@ static struct freq_attr *acpi_cpufreq_attr[] = { }; static struct cpufreq_driver acpi_cpufreq_driver = { - .verify = acpi_cpufreq_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = acpi_cpufreq_target, .bios_limit = acpi_processor_get_bios_limit, .init = acpi_cpufreq_cpu_init, -- cgit v1.2.3-70-g09d2 From 3c75a1503f2c5ca91279436b1f573002c869ef06 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:27:57 +0530 Subject: cpufreq: arm_big_little: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the arm_big_little driver. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/arm_big_little.c | 18 ++---------------- 1 file changed, 2 insertions(+), 16 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c index 2c7c1349482..132c966471c 100644 --- a/drivers/cpufreq/arm_big_little.c +++ b/drivers/cpufreq/arm_big_little.c @@ -47,14 +47,6 @@ static unsigned int bL_cpufreq_get(unsigned int cpu) return clk_get_rate(clk[cur_cluster]) / 1000; } -/* Validate policy frequency range */ -static int bL_cpufreq_verify_policy(struct cpufreq_policy *policy) -{ - u32 cur_cluster = cpu_to_cluster(policy->cpu); - - return cpufreq_frequency_table_verify(policy, freq_table[cur_cluster]); -} - /* Set clock frequency */ static int bL_cpufreq_set_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) @@ -205,22 +197,16 @@ static int bL_cpufreq_exit(struct cpufreq_policy *policy) return 0; } -/* Export freq_table to sysfs */ -static struct freq_attr *bL_cpufreq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver bL_cpufreq_driver = { .name = "arm-big-little", .flags = CPUFREQ_STICKY | CPUFREQ_HAVE_GOVERNOR_PER_POLICY, - .verify = bL_cpufreq_verify_policy, + .verify = cpufreq_generic_frequency_table_verify, .target = bL_cpufreq_set_target, .get = bL_cpufreq_get, .init = bL_cpufreq_init, .exit = bL_cpufreq_exit, - .attr = bL_cpufreq_attr, + .attr = cpufreq_generic_attr, }; int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops) -- cgit v1.2.3-70-g09d2 From 5ae68f4737cec20505f3bb0a99bcb2efcfd66792 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:27:58 +0530 Subject: cpufreq: at32ap: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the at32ap driver. Acked-by: Hans-Christian Egtvedt Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/at32ap-cpufreq.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/at32ap-cpufreq.c b/drivers/cpufreq/at32ap-cpufreq.c index 1d19fa59bc2..788f7e77565 100644 --- a/drivers/cpufreq/at32ap-cpufreq.c +++ b/drivers/cpufreq/at32ap-cpufreq.c @@ -24,16 +24,6 @@ static struct clk *cpuclk; static struct cpufreq_frequency_table *freq_table; -static int at32_verify_speed(struct cpufreq_policy *policy) -{ - if (policy->cpu != 0) - return -EINVAL; - - cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); - return 0; -} - static unsigned int at32_get_speed(unsigned int cpu) { /* No SMP support */ @@ -152,7 +142,7 @@ out_err: static struct cpufreq_driver at32_driver = { .name = "at32ap", .init = at32_cpufreq_driver_init, - .verify = at32_verify_speed, + .verify = cpufreq_generic_frequency_table_verify, .target = at32_set_target, .get = at32_get_speed, .flags = CPUFREQ_STICKY, -- cgit v1.2.3-70-g09d2 From 00ff424caa68f0d880e3593554ed0aefb52a84a3 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:27:59 +0530 Subject: cpufreq: blackfin: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the blackfin driver. Cc: Steven Miao Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/blackfin-cpufreq.c | 23 +++-------------------- 1 file changed, 3 insertions(+), 20 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/blackfin-cpufreq.c b/drivers/cpufreq/blackfin-cpufreq.c index 0e76c09552b..48888cf23bb 100644 --- a/drivers/cpufreq/blackfin-cpufreq.c +++ b/drivers/cpufreq/blackfin-cpufreq.c @@ -191,11 +191,6 @@ static int bfin_target(struct cpufreq_policy *policy, return ret; } -static int bfin_verify_speed(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, bfin_freq_table); -} - static int __bfin_cpu_init(struct cpufreq_policy *policy) { @@ -213,26 +208,14 @@ static int __bfin_cpu_init(struct cpufreq_policy *policy) return cpufreq_table_validate_and_show(policy, bfin_freq_table); } -static int __bfin_cpu_exit(struct cpufreq_policy *policy) -{ - - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - -static struct freq_attr *bfin_freq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver bfin_driver = { - .verify = bfin_verify_speed, + .verify = cpufreq_generic_frequency_table_verify, .target = bfin_target, .get = bfin_getfreq_khz, .init = __bfin_cpu_init, - .exit = __bfin_cpu_exit, + .exit = cpufreq_generic_exit, .name = "bfin cpufreq", - .attr = bfin_freq_attr, + .attr = cpufreq_generic_attr, }; static int __init bfin_cpu_init(void) -- cgit v1.2.3-70-g09d2 From f793d79f08d1b44fcad60869fdadd556da780304 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:00 +0530 Subject: cpufreq: cpufreq-cpu0: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the cpufreq-cpu0 driver. Signed-off-by: Viresh Kumar Acked-by: Shawn Guo Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq-cpu0.c | 23 +++-------------------- 1 file changed, 3 insertions(+), 20 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index fd031ec33fc..c4a7514b1e1 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -30,11 +30,6 @@ static struct clk *cpu_clk; static struct regulator *cpu_reg; static struct cpufreq_frequency_table *freq_table; -static int cpu0_verify_speed(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, freq_table); -} - static unsigned int cpu0_get_speed(unsigned int cpu) { return clk_get_rate(cpu_clk) / 1000; @@ -148,27 +143,15 @@ static int cpu0_cpufreq_init(struct cpufreq_policy *policy) return 0; } -static int cpu0_cpufreq_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - - return 0; -} - -static struct freq_attr *cpu0_cpufreq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver cpu0_cpufreq_driver = { .flags = CPUFREQ_STICKY, - .verify = cpu0_verify_speed, + .verify = cpufreq_generic_frequency_table_verify, .target = cpu0_set_target, .get = cpu0_get_speed, .init = cpu0_cpufreq_init, - .exit = cpu0_cpufreq_exit, + .exit = cpufreq_generic_exit, .name = "generic_cpu0", - .attr = cpu0_cpufreq_attr, + .attr = cpufreq_generic_attr, }; static int cpu0_cpufreq_probe(struct platform_device *pdev) -- cgit v1.2.3-70-g09d2 From 361db10f61b1d113eadd1b7b1db5f16f63c4eb49 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:01 +0530 Subject: cpufreq: cris: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the cris driver. Cc: Jesper Nilsson Cc: Mikael Starvik Signed-off-by: Viresh Kumar Acked-by: Jesper Nilsson Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cris-artpec3-cpufreq.c | 23 +++-------------------- drivers/cpufreq/cris-etraxfs-cpufreq.c | 22 +++------------------- 2 files changed, 6 insertions(+), 39 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cris-artpec3-cpufreq.c b/drivers/cpufreq/cris-artpec3-cpufreq.c index 444fd96ad3a..d26f4e45dab 100644 --- a/drivers/cpufreq/cris-artpec3-cpufreq.c +++ b/drivers/cpufreq/cris-artpec3-cpufreq.c @@ -54,11 +54,6 @@ static void cris_freq_set_cpu_state(struct cpufreq_policy *policy, cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); }; -static int cris_freq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, &cris_freq_table[0]); -} - static int cris_freq_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) @@ -84,26 +79,14 @@ static int cris_freq_cpu_init(struct cpufreq_policy *policy) } -static int cris_freq_cpu_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - - -static struct freq_attr *cris_freq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver cris_freq_driver = { .get = cris_freq_get_cpu_frequency, - .verify = cris_freq_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = cris_freq_target, .init = cris_freq_cpu_init, - .exit = cris_freq_cpu_exit, + .exit = cpufreq_generic_exit, .name = "cris_freq", - .attr = cris_freq_attr, + .attr = cpufreq_generic_attr, }; static int __init cris_freq_init(void) diff --git a/drivers/cpufreq/cris-etraxfs-cpufreq.c b/drivers/cpufreq/cris-etraxfs-cpufreq.c index 428395e39a6..d384e638fdb 100644 --- a/drivers/cpufreq/cris-etraxfs-cpufreq.c +++ b/drivers/cpufreq/cris-etraxfs-cpufreq.c @@ -54,11 +54,6 @@ static void cris_freq_set_cpu_state(struct cpufreq_policy *policy, cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); }; -static int cris_freq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, &cris_freq_table[0]); -} - static int cris_freq_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) { @@ -82,25 +77,14 @@ static int cris_freq_cpu_init(struct cpufreq_policy *policy) return cpufreq_table_validate_and_show(policy, cris_freq_table); } -static int cris_freq_cpu_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - -static struct freq_attr *cris_freq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver cris_freq_driver = { .get = cris_freq_get_cpu_frequency, - .verify = cris_freq_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = cris_freq_target, .init = cris_freq_cpu_init, - .exit = cris_freq_cpu_exit, + .exit = cpufreq_generic_exit, .name = "cris_freq", - .attr = cris_freq_attr, + .attr = cpufreq_generic_attr, }; static int __init cris_freq_init(void) -- cgit v1.2.3-70-g09d2 From 39d0c362b4f808484985a9ffd899c784ee8fca4d Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:02 +0530 Subject: cpufreq: davinci: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the davinci driver. Cc: Sekhar Nori Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/davinci-cpufreq.c | 15 ++------------- 1 file changed, 2 insertions(+), 13 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/davinci-cpufreq.c b/drivers/cpufreq/davinci-cpufreq.c index ba03e6f91d4..f2286423665 100644 --- a/drivers/cpufreq/davinci-cpufreq.c +++ b/drivers/cpufreq/davinci-cpufreq.c @@ -155,26 +155,15 @@ static int davinci_cpu_init(struct cpufreq_policy *policy) return 0; } -static int davinci_cpu_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - -static struct freq_attr *davinci_cpufreq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver davinci_driver = { .flags = CPUFREQ_STICKY, .verify = davinci_verify_speed, .target = davinci_target, .get = davinci_getspeed, .init = davinci_cpu_init, - .exit = davinci_cpu_exit, + .exit = cpufreq_generic_exit, .name = "davinci", - .attr = davinci_cpufreq_attr, + .attr = cpufreq_generic_attr, }; static int __init davinci_cpufreq_probe(struct platform_device *pdev) -- cgit v1.2.3-70-g09d2 From 47150e985cf99578bb1cd76a8cb60b18403c4b30 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:03 +0530 Subject: cpufreq: dbx500: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines for in the dbx500 driver. Cc: Linus Walleij Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/dbx500-cpufreq.c | 14 ++------------ 1 file changed, 2 insertions(+), 12 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/dbx500-cpufreq.c b/drivers/cpufreq/dbx500-cpufreq.c index 8a484e91bbe..2d706378500 100644 --- a/drivers/cpufreq/dbx500-cpufreq.c +++ b/drivers/cpufreq/dbx500-cpufreq.c @@ -19,16 +19,6 @@ static struct cpufreq_frequency_table *freq_table; static struct clk *armss_clk; -static struct freq_attr *dbx500_cpufreq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - -static int dbx500_cpufreq_verify_speed(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, freq_table); -} - static int dbx500_cpufreq_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) @@ -113,12 +103,12 @@ static int dbx500_cpufreq_init(struct cpufreq_policy *policy) static struct cpufreq_driver dbx500_cpufreq_driver = { .flags = CPUFREQ_STICKY | CPUFREQ_CONST_LOOPS, - .verify = dbx500_cpufreq_verify_speed, + .verify = cpufreq_generic_frequency_table_verify, .target = dbx500_cpufreq_target, .get = dbx500_cpufreq_getspeed, .init = dbx500_cpufreq_init, .name = "DBX500", - .attr = dbx500_cpufreq_attr, + .attr = cpufreq_generic_attr, }; static int dbx500_cpufreq_probe(struct platform_device *pdev) -- cgit v1.2.3-70-g09d2 From f51d2ac3267b7898fc3f8e8b0af33ffc24823190 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:04 +0530 Subject: cpufreq: e_powersaver: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the e_powersaver driver. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/e_powersaver.c | 15 ++------------- 1 file changed, 2 insertions(+), 13 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/e_powersaver.c b/drivers/cpufreq/e_powersaver.c index c1b7c99d2ef..a8cbbd05436 100644 --- a/drivers/cpufreq/e_powersaver.c +++ b/drivers/cpufreq/e_powersaver.c @@ -198,12 +198,6 @@ static int eps_target(struct cpufreq_policy *policy, return ret; } -static int eps_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, - &eps_cpu[policy->cpu]->freq_table[0]); -} - static int eps_cpu_init(struct cpufreq_policy *policy) { unsigned int i; @@ -423,19 +417,14 @@ static int eps_cpu_exit(struct cpufreq_policy *policy) return 0; } -static struct freq_attr *eps_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver eps_driver = { - .verify = eps_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = eps_target, .init = eps_cpu_init, .exit = eps_cpu_exit, .get = eps_get, .name = "e_powersaver", - .attr = eps_attr, + .attr = cpufreq_generic_attr, }; -- cgit v1.2.3-70-g09d2 From 06494eb783cf34fa1d67b77fa597b656b6ad07fe Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:05 +0530 Subject: cpufreq: elanfreq: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the elanfreq driver. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/elanfreq.c | 32 +++----------------------------- 1 file changed, 3 insertions(+), 29 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/elanfreq.c b/drivers/cpufreq/elanfreq.c index 4000c34e5e5..fe7053cd68a 100644 --- a/drivers/cpufreq/elanfreq.c +++ b/drivers/cpufreq/elanfreq.c @@ -165,19 +165,6 @@ static void elanfreq_set_cpu_state(struct cpufreq_policy *policy, }; -/** - * elanfreq_validatespeed: test if frequency range is valid - * @policy: the policy to validate - * - * This function checks if a given frequency range in kHz is valid - * for the hardware supported by the driver. - */ - -static int elanfreq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, &elanfreq_table[0]); -} - static int elanfreq_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) @@ -226,13 +213,6 @@ static int elanfreq_cpu_init(struct cpufreq_policy *policy) } -static int elanfreq_cpu_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - - #ifndef MODULE /** * elanfreq_setup - elanfreq command line parameter parsing @@ -255,20 +235,14 @@ __setup("elanfreq=", elanfreq_setup); #endif -static struct freq_attr *elanfreq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - - static struct cpufreq_driver elanfreq_driver = { .get = elanfreq_get_cpu_frequency, - .verify = elanfreq_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = elanfreq_target, .init = elanfreq_cpu_init, - .exit = elanfreq_cpu_exit, + .exit = cpufreq_generic_exit, .name = "elanfreq", - .attr = elanfreq_attr, + .attr = cpufreq_generic_attr, }; static const struct x86_cpu_id elan_id[] = { -- cgit v1.2.3-70-g09d2 From eea6181ed2904f379497918a032588f5e74566e4 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:06 +0530 Subject: cpufreq: exynos: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the exynos driver. Signed-off-by: Viresh Kumar Acked-By: Amit Daniel Kachhap Acked-by: Kukjin Kim Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/exynos-cpufreq.c | 23 +++-------------------- drivers/cpufreq/exynos5440-cpufreq.c | 16 ++-------------- 2 files changed, 5 insertions(+), 34 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c index 954baed9589..08338d42c77 100644 --- a/drivers/cpufreq/exynos-cpufreq.c +++ b/drivers/cpufreq/exynos-cpufreq.c @@ -31,12 +31,6 @@ static unsigned int locking_frequency; static bool frequency_locked; static DEFINE_MUTEX(cpufreq_lock); -static int exynos_verify_speed(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, - exynos_info->freq_table); -} - static unsigned int exynos_getspeed(unsigned int cpu) { return clk_get_rate(exynos_info->cpu_clk) / 1000; @@ -257,26 +251,15 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy) return cpufreq_table_validate_and_show(policy, exynos_info->freq_table); } -static int exynos_cpufreq_cpu_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - -static struct freq_attr *exynos_cpufreq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver exynos_driver = { .flags = CPUFREQ_STICKY, - .verify = exynos_verify_speed, + .verify = cpufreq_generic_frequency_table_verify, .target = exynos_target, .get = exynos_getspeed, .init = exynos_cpufreq_cpu_init, - .exit = exynos_cpufreq_cpu_exit, + .exit = cpufreq_generic_exit, .name = "exynos_cpufreq", - .attr = exynos_cpufreq_attr, + .attr = cpufreq_generic_attr, #ifdef CONFIG_PM .suspend = exynos_cpufreq_suspend, .resume = exynos_cpufreq_resume, diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c index 24df155f871..bce6f7442aa 100644 --- a/drivers/cpufreq/exynos5440-cpufreq.c +++ b/drivers/cpufreq/exynos5440-cpufreq.c @@ -209,12 +209,6 @@ static void exynos_enable_dvfs(void) dvfs_info->base + XMU_DVFS_CTRL); } -static int exynos_verify_speed(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, - dvfs_info->freq_table); -} - static unsigned int exynos_getspeed(unsigned int cpu) { return dvfs_info->cur_frequency; @@ -339,19 +333,13 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy) return 0; } -static int exynos_cpufreq_cpu_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - static struct cpufreq_driver exynos_driver = { .flags = CPUFREQ_STICKY, - .verify = exynos_verify_speed, + .verify = cpufreq_generic_frequency_table_verify, .target = exynos_target, .get = exynos_getspeed, .init = exynos_cpufreq_cpu_init, - .exit = exynos_cpufreq_cpu_exit, + .exit = cpufreq_generic_exit, .name = CPUFREQ_NAME, }; -- cgit v1.2.3-70-g09d2 From 59b2413bfe51925858148a9d86ffe6b5bbf68a1a Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:07 +0530 Subject: cpufreq: ia64-acpi: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the ia64-acpi driver. Cc: Tony Luck Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/ia64-acpi-cpufreq.c | 26 ++------------------------ 1 file changed, 2 insertions(+), 24 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/ia64-acpi-cpufreq.c b/drivers/cpufreq/ia64-acpi-cpufreq.c index 6cfad5193d3..b958bdb17f5 100644 --- a/drivers/cpufreq/ia64-acpi-cpufreq.c +++ b/drivers/cpufreq/ia64-acpi-cpufreq.c @@ -247,22 +247,6 @@ acpi_cpufreq_target ( } -static int -acpi_cpufreq_verify ( - struct cpufreq_policy *policy) -{ - unsigned int result = 0; - struct cpufreq_acpi_io *data = acpi_io_data[policy->cpu]; - - pr_debug("acpi_cpufreq_verify\n"); - - result = cpufreq_frequency_table_verify(policy, - data->freq_table); - - return (result); -} - - static int acpi_cpufreq_cpu_init ( struct cpufreq_policy *policy) @@ -394,20 +378,14 @@ acpi_cpufreq_cpu_exit ( } -static struct freq_attr* acpi_cpufreq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - - static struct cpufreq_driver acpi_cpufreq_driver = { - .verify = acpi_cpufreq_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = acpi_cpufreq_target, .get = acpi_cpufreq_get, .init = acpi_cpufreq_cpu_init, .exit = acpi_cpufreq_cpu_exit, .name = "acpi-cpufreq", - .attr = acpi_cpufreq_attr, + .attr = cpufreq_generic_attr, }; -- cgit v1.2.3-70-g09d2 From 4f6ba385e9db26536e5dbee81a3ae83ec126fa07 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:08 +0530 Subject: cpufreq: imx6q: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines for in the imx6q driver. Signed-off-by: Viresh Kumar Acked-by: Shawn Guo Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/imx6q-cpufreq.c | 22 +++------------------- 1 file changed, 3 insertions(+), 19 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c index af0e202d877..d8396573746 100644 --- a/drivers/cpufreq/imx6q-cpufreq.c +++ b/drivers/cpufreq/imx6q-cpufreq.c @@ -35,11 +35,6 @@ static struct device *cpu_dev; static struct cpufreq_frequency_table *freq_table; static unsigned int transition_latency; -static int imx6q_verify_speed(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, freq_table); -} - static unsigned int imx6q_get_speed(unsigned int cpu) { return clk_get_rate(arm_clk) / 1000; @@ -174,25 +169,14 @@ static int imx6q_cpufreq_init(struct cpufreq_policy *policy) return 0; } -static int imx6q_cpufreq_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - -static struct freq_attr *imx6q_cpufreq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver imx6q_cpufreq_driver = { - .verify = imx6q_verify_speed, + .verify = cpufreq_generic_frequency_table_verify, .target = imx6q_set_target, .get = imx6q_get_speed, .init = imx6q_cpufreq_init, - .exit = imx6q_cpufreq_exit, + .exit = cpufreq_generic_exit, .name = "imx6q-cpufreq", - .attr = imx6q_cpufreq_attr, + .attr = cpufreq_generic_attr, }; static int imx6q_cpufreq_probe(struct platform_device *pdev) -- cgit v1.2.3-70-g09d2 From a86a41a13e7971c85a6dc2c6865ff7747397ef21 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:09 +0530 Subject: cpufreq: kirkwood: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the kirkwood driver. Tested-by: Andrew Lunn Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/kirkwood-cpufreq.c | 22 +++------------------- 1 file changed, 3 insertions(+), 19 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/kirkwood-cpufreq.c b/drivers/cpufreq/kirkwood-cpufreq.c index 59cbb351fc6..1a4e4f4420a 100644 --- a/drivers/cpufreq/kirkwood-cpufreq.c +++ b/drivers/cpufreq/kirkwood-cpufreq.c @@ -102,11 +102,6 @@ static void kirkwood_cpufreq_set_cpu_state(struct cpufreq_policy *policy, cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); }; -static int kirkwood_cpufreq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, kirkwood_freq_table); -} - static int kirkwood_cpufreq_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) @@ -132,25 +127,14 @@ static int kirkwood_cpufreq_cpu_init(struct cpufreq_policy *policy) return cpufreq_table_validate_and_show(policy, kirkwood_freq_table); } -static int kirkwood_cpufreq_cpu_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - -static struct freq_attr *kirkwood_cpufreq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver kirkwood_cpufreq_driver = { .get = kirkwood_cpufreq_get_cpu_frequency, - .verify = kirkwood_cpufreq_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = kirkwood_cpufreq_target, .init = kirkwood_cpufreq_cpu_init, - .exit = kirkwood_cpufreq_cpu_exit, + .exit = cpufreq_generic_exit, .name = "kirkwood-cpufreq", - .attr = kirkwood_cpufreq_attr, + .attr = cpufreq_generic_attr, }; static int kirkwood_cpufreq_probe(struct platform_device *pdev) -- cgit v1.2.3-70-g09d2 From 3a4d0342ebada05810a2400ef1db3c66d88ef22c Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:10 +0530 Subject: cpufreq: longhaul: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the longhaul driver. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/longhaul.c | 23 +++-------------------- 1 file changed, 3 insertions(+), 20 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/longhaul.c b/drivers/cpufreq/longhaul.c index 70b66fda3ca..57d7b02f863 100644 --- a/drivers/cpufreq/longhaul.c +++ b/drivers/cpufreq/longhaul.c @@ -625,12 +625,6 @@ static void longhaul_setup_voltagescaling(void) } -static int longhaul_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, longhaul_table); -} - - static int longhaul_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) { @@ -924,25 +918,14 @@ static int longhaul_cpu_init(struct cpufreq_policy *policy) return cpufreq_table_validate_and_show(policy, longhaul_table); } -static int longhaul_cpu_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - -static struct freq_attr *longhaul_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver longhaul_driver = { - .verify = longhaul_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = longhaul_target, .get = longhaul_get, .init = longhaul_cpu_init, - .exit = longhaul_cpu_exit, + .exit = cpufreq_generic_exit, .name = "longhaul", - .attr = longhaul_attr, + .attr = cpufreq_generic_attr, }; static const struct x86_cpu_id longhaul_id[] = { -- cgit v1.2.3-70-g09d2 From 6b0f8d737b703f99baf5240d281c28430ed7e775 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:11 +0530 Subject: cpufreq: loongson2: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the loongson2 driver. Cc: John Crispin Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/loongson2_cpufreq.c | 15 ++------------- 1 file changed, 2 insertions(+), 13 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c index cec4e723d61..ed7fbe23437 100644 --- a/drivers/cpufreq/loongson2_cpufreq.c +++ b/drivers/cpufreq/loongson2_cpufreq.c @@ -137,12 +137,6 @@ static int loongson2_cpufreq_cpu_init(struct cpufreq_policy *policy) &loongson2_clockmod_table[0]); } -static int loongson2_cpufreq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, - &loongson2_clockmod_table[0]); -} - static int loongson2_cpufreq_exit(struct cpufreq_policy *policy) { cpufreq_frequency_table_put_attr(policy->cpu); @@ -150,19 +144,14 @@ static int loongson2_cpufreq_exit(struct cpufreq_policy *policy) return 0; } -static struct freq_attr *loongson2_table_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver loongson2_cpufreq_driver = { .name = "loongson2", .init = loongson2_cpufreq_cpu_init, - .verify = loongson2_cpufreq_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = loongson2_cpufreq_target, .get = loongson2_cpufreq_get, .exit = loongson2_cpufreq_exit, - .attr = loongson2_table_attr, + .attr = cpufreq_generic_attr, }; static struct platform_device_id platform_device_ids[] = { -- cgit v1.2.3-70-g09d2 From b766b90896203e39c833ec9f76babd5ccb1303b1 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:12 +0530 Subject: cpufreq: maple: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the maple driver. Cc: Dmitry Eremin-Solenikov Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/maple-cpufreq.c | 14 ++------------ 1 file changed, 2 insertions(+), 12 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/maple-cpufreq.c b/drivers/cpufreq/maple-cpufreq.c index b3fb661b2b5..b23d1d8ab9c 100644 --- a/drivers/cpufreq/maple-cpufreq.c +++ b/drivers/cpufreq/maple-cpufreq.c @@ -64,11 +64,6 @@ static struct cpufreq_frequency_table maple_cpu_freqs[] = { {0, CPUFREQ_TABLE_END}, }; -static struct freq_attr *maple_cpu_freqs_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - /* Power mode data is an array of the 32 bits PCR values to use for * the various frequencies, retrieved from the device-tree */ @@ -135,11 +130,6 @@ static int maple_scom_query_freq(void) * Common interface to the cpufreq core */ -static int maple_cpufreq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, maple_cpu_freqs); -} - static int maple_cpufreq_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) { @@ -190,10 +180,10 @@ static struct cpufreq_driver maple_cpufreq_driver = { .name = "maple", .flags = CPUFREQ_CONST_LOOPS, .init = maple_cpufreq_cpu_init, - .verify = maple_cpufreq_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = maple_cpufreq_target, .get = maple_cpufreq_get_speed, - .attr = maple_cpu_freqs_attr, + .attr = cpufreq_generic_attr, }; static int __init maple_cpufreq_init(void) -- cgit v1.2.3-70-g09d2 From d5ca1649c1aebf1e5c95a33fdd80ad415f41dd1d Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:13 +0530 Subject: cpufreq: omap: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the OMAP driver. Cc: Santosh Shilimkar Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/omap-cpufreq.c | 16 ++-------------- 1 file changed, 2 insertions(+), 14 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c index 091f2333433..48020b5b6a9 100644 --- a/drivers/cpufreq/omap-cpufreq.c +++ b/drivers/cpufreq/omap-cpufreq.c @@ -40,13 +40,6 @@ static struct clk *mpu_clk; static struct device *mpu_dev; static struct regulator *mpu_reg; -static int omap_verify_speed(struct cpufreq_policy *policy) -{ - if (!freq_table) - return -EINVAL; - return cpufreq_frequency_table_verify(policy, freq_table); -} - static unsigned int omap_getspeed(unsigned int cpu) { unsigned long rate; @@ -227,20 +220,15 @@ static int omap_cpu_exit(struct cpufreq_policy *policy) return 0; } -static struct freq_attr *omap_cpufreq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver omap_driver = { .flags = CPUFREQ_STICKY, - .verify = omap_verify_speed, + .verify = cpufreq_generic_frequency_table_verify, .target = omap_target, .get = omap_getspeed, .init = omap_cpu_init, .exit = omap_cpu_exit, .name = "omap", - .attr = omap_cpufreq_attr, + .attr = cpufreq_generic_attr, }; static int omap_cpufreq_probe(struct platform_device *pdev) -- cgit v1.2.3-70-g09d2 From 522f70cefaedf414d8856677f46836f262572a35 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:14 +0530 Subject: cpufreq: p4-clockmod: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the p4-clockmod driver. Cc: David S. Miller Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/p4-clockmod.c | 23 +++-------------------- 1 file changed, 3 insertions(+), 20 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c index 03478bf2967..4fe6d4cac74 100644 --- a/drivers/cpufreq/p4-clockmod.c +++ b/drivers/cpufreq/p4-clockmod.c @@ -140,12 +140,6 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy, } -static int cpufreq_p4_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, &p4clockmod_table[0]); -} - - static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c) { if (c->x86 == 0x06) { @@ -242,12 +236,6 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy) } -static int cpufreq_p4_cpu_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - static unsigned int cpufreq_p4_get(unsigned int cpu) { u32 l, h; @@ -266,19 +254,14 @@ static unsigned int cpufreq_p4_get(unsigned int cpu) return stock_freq; } -static struct freq_attr *p4clockmod_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver p4clockmod_driver = { - .verify = cpufreq_p4_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = cpufreq_p4_target, .init = cpufreq_p4_cpu_init, - .exit = cpufreq_p4_cpu_exit, + .exit = cpufreq_generic_exit, .get = cpufreq_p4_get, .name = "p4-clockmod", - .attr = p4clockmod_attr, + .attr = cpufreq_generic_attr, }; static const struct x86_cpu_id cpufreq_p4_id[] = { -- cgit v1.2.3-70-g09d2 From 571743107dff548ca9dd24d6e6ec2dac2f5424a1 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:15 +0530 Subject: cpufreq: pasemi: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the pasemi driver. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/pasemi-cpufreq.c | 14 ++------------ 1 file changed, 2 insertions(+), 12 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c index 23bc8a82b99..16f250809d7 100644 --- a/drivers/cpufreq/pasemi-cpufreq.c +++ b/drivers/cpufreq/pasemi-cpufreq.c @@ -69,11 +69,6 @@ static struct cpufreq_frequency_table pas_freqs[] = { {0, CPUFREQ_TABLE_END}, }; -static struct freq_attr *pas_cpu_freqs_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - /* * hardware specific functions */ @@ -251,11 +246,6 @@ static int pas_cpufreq_cpu_exit(struct cpufreq_policy *policy) return 0; } -static int pas_cpufreq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, pas_freqs); -} - static int pas_cpufreq_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) @@ -298,9 +288,9 @@ static struct cpufreq_driver pas_cpufreq_driver = { .flags = CPUFREQ_CONST_LOOPS, .init = pas_cpufreq_cpu_init, .exit = pas_cpufreq_cpu_exit, - .verify = pas_cpufreq_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = pas_cpufreq_target, - .attr = pas_cpu_freqs_attr, + .attr = cpufreq_generic_attr, }; /* -- cgit v1.2.3-70-g09d2 From 2633a46c581baa2a9bc33737dfbc792745e30554 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:16 +0530 Subject: cpufreq: pmac: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the pmac driver. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/pmac32-cpufreq.c | 14 ++------------ drivers/cpufreq/pmac64-cpufreq.c | 14 ++------------ 2 files changed, 4 insertions(+), 24 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/pmac32-cpufreq.c b/drivers/cpufreq/pmac32-cpufreq.c index 470b5553bb6..8715ab99d80 100644 --- a/drivers/cpufreq/pmac32-cpufreq.c +++ b/drivers/cpufreq/pmac32-cpufreq.c @@ -86,11 +86,6 @@ static struct cpufreq_frequency_table pmac_cpu_freqs[] = { {0, CPUFREQ_TABLE_END}, }; -static struct freq_attr* pmac_cpu_freqs_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static inline void local_delay(unsigned long ms) { if (no_schedule) @@ -378,11 +373,6 @@ static unsigned int pmac_cpufreq_get_speed(unsigned int cpu) return cur_freq; } -static int pmac_cpufreq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, pmac_cpu_freqs); -} - static int pmac_cpufreq_target( struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) @@ -468,14 +458,14 @@ static int pmac_cpufreq_resume(struct cpufreq_policy *policy) } static struct cpufreq_driver pmac_cpufreq_driver = { - .verify = pmac_cpufreq_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = pmac_cpufreq_target, .get = pmac_cpufreq_get_speed, .init = pmac_cpufreq_cpu_init, .suspend = pmac_cpufreq_suspend, .resume = pmac_cpufreq_resume, .flags = CPUFREQ_PM_NO_WARN, - .attr = pmac_cpu_freqs_attr, + .attr = cpufreq_generic_attr, .name = "powermac", }; diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c index 41fa89e4d9d..e853b852b34 100644 --- a/drivers/cpufreq/pmac64-cpufreq.c +++ b/drivers/cpufreq/pmac64-cpufreq.c @@ -70,11 +70,6 @@ static struct cpufreq_frequency_table g5_cpu_freqs[] = { {0, CPUFREQ_TABLE_END}, }; -static struct freq_attr* g5_cpu_freqs_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - /* Power mode data is an array of the 32 bits PCR values to use for * the various frequencies, retrieved from the device-tree */ @@ -317,11 +312,6 @@ static int g5_pfunc_query_freq(void) * Common interface to the cpufreq core */ -static int g5_cpufreq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, g5_cpu_freqs); -} - static int g5_cpufreq_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) { @@ -372,10 +362,10 @@ static struct cpufreq_driver g5_cpufreq_driver = { .name = "powermac", .flags = CPUFREQ_CONST_LOOPS, .init = g5_cpufreq_cpu_init, - .verify = g5_cpufreq_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = g5_cpufreq_target, .get = g5_cpufreq_get_speed, - .attr = g5_cpu_freqs_attr, + .attr = cpufreq_generic_attr, }; -- cgit v1.2.3-70-g09d2 From d63bd27fe953daa402a108e141c36dcc59c6931c Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:17 +0530 Subject: cpufreq: powernow: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the powernow driver. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/powernow-k6.c | 22 ++-------------------- drivers/cpufreq/powernow-k7.c | 14 ++------------ drivers/cpufreq/powernow-k8.c | 20 ++------------------ 3 files changed, 6 insertions(+), 50 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/powernow-k6.c b/drivers/cpufreq/powernow-k6.c index ab1de0d2509..ff05d284e48 100644 --- a/drivers/cpufreq/powernow-k6.c +++ b/drivers/cpufreq/powernow-k6.c @@ -104,19 +104,6 @@ static void powernow_k6_set_state(struct cpufreq_policy *policy, } -/** - * powernow_k6_verify - verifies a new CPUfreq policy - * @policy: new policy - * - * Policy must be within lowest and highest possible CPU Frequency, - * and at least one possible state must be within min and max. - */ -static int powernow_k6_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, &clock_ratio[0]); -} - - /** * powernow_k6_setpolicy - sets a new CPUFreq policy * @policy: new policy @@ -188,19 +175,14 @@ static unsigned int powernow_k6_get(unsigned int cpu) return ret; } -static struct freq_attr *powernow_k6_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver powernow_k6_driver = { - .verify = powernow_k6_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = powernow_k6_target, .init = powernow_k6_cpu_init, .exit = powernow_k6_cpu_exit, .get = powernow_k6_get, .name = "powernow-k6", - .attr = powernow_k6_attr, + .attr = cpufreq_generic_attr, }; static const struct x86_cpu_id powernow_k6_ids[] = { diff --git a/drivers/cpufreq/powernow-k7.c b/drivers/cpufreq/powernow-k7.c index c863c13dfcc..14cd98f5a09 100644 --- a/drivers/cpufreq/powernow-k7.c +++ b/drivers/cpufreq/powernow-k7.c @@ -549,11 +549,6 @@ static int powernow_target(struct cpufreq_policy *policy, } -static int powernow_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, powernow_table); -} - /* * We use the fact that the bus frequency is somehow * a multiple of 100000/3 khz, then we compute sgtc according @@ -699,13 +694,8 @@ static int powernow_cpu_exit(struct cpufreq_policy *policy) return 0; } -static struct freq_attr *powernow_table_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver powernow_driver = { - .verify = powernow_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = powernow_target, .get = powernow_get, #ifdef CONFIG_X86_POWERNOW_K7_ACPI @@ -714,7 +704,7 @@ static struct cpufreq_driver powernow_driver = { .init = powernow_cpu_init, .exit = powernow_cpu_exit, .name = "powernow-k7", - .attr = powernow_table_attr, + .attr = cpufreq_generic_attr, }; static int __init powernow_init(void) diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c index 8d4114a043b..1e6f68af87a 100644 --- a/drivers/cpufreq/powernow-k8.c +++ b/drivers/cpufreq/powernow-k8.c @@ -1053,17 +1053,6 @@ static int powernowk8_target(struct cpufreq_policy *pol, return work_on_cpu(pol->cpu, powernowk8_target_fn, &pta); } -/* Driver entry point to verify the policy and range of frequencies */ -static int powernowk8_verify(struct cpufreq_policy *pol) -{ - struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu); - - if (!data) - return -EINVAL; - - return cpufreq_frequency_table_verify(pol, data->powernow_table); -} - struct init_on_cpu { struct powernow_k8_data *data; int rc; @@ -1225,20 +1214,15 @@ out: return khz; } -static struct freq_attr *powernow_k8_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver cpufreq_amd64_driver = { - .verify = powernowk8_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = powernowk8_target, .bios_limit = acpi_processor_get_bios_limit, .init = powernowk8_cpu_init, .exit = powernowk8_cpu_exit, .get = powernowk8_get, .name = "powernow-k8", - .attr = powernow_k8_attr, + .attr = cpufreq_generic_attr, }; static void __request_acpi_cpufreq(void) -- cgit v1.2.3-70-g09d2 From dc2398d7ff282bce5a348481024e41f96e40e854 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:18 +0530 Subject: cpufreq: ppc-corenet: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the ppc-corenet driver. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/ppc-corenet-cpufreq.c | 17 ++--------------- 1 file changed, 2 insertions(+), 15 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/ppc-corenet-cpufreq.c b/drivers/cpufreq/ppc-corenet-cpufreq.c index 5716b44ffc0..befd489314e 100644 --- a/drivers/cpufreq/ppc-corenet-cpufreq.c +++ b/drivers/cpufreq/ppc-corenet-cpufreq.c @@ -252,14 +252,6 @@ static int __exit corenet_cpufreq_cpu_exit(struct cpufreq_policy *policy) return 0; } -static int corenet_cpufreq_verify(struct cpufreq_policy *policy) -{ - struct cpufreq_frequency_table *table = - per_cpu(cpu_data, policy->cpu)->table; - - return cpufreq_frequency_table_verify(policy, table); -} - static int corenet_cpufreq_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) { @@ -292,20 +284,15 @@ static int corenet_cpufreq_target(struct cpufreq_policy *policy, return ret; } -static struct freq_attr *corenet_cpufreq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver ppc_corenet_cpufreq_driver = { .name = "ppc_cpufreq", .flags = CPUFREQ_CONST_LOOPS, .init = corenet_cpufreq_cpu_init, .exit = __exit_p(corenet_cpufreq_cpu_exit), - .verify = corenet_cpufreq_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = corenet_cpufreq_target, .get = corenet_cpufreq_get_speed, - .attr = corenet_cpufreq_attr, + .attr = cpufreq_generic_attr, }; static const struct of_device_id node_matches[] __initdata = { -- cgit v1.2.3-70-g09d2 From c3bc3d67ff07c1986e8ededc14e3fbdd26528f17 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:19 +0530 Subject: cpufreq: ppc_cbe: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the ppc_cbe driver. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/ppc_cbe_cpufreq.c | 15 ++------------- 1 file changed, 2 insertions(+), 13 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/ppc_cbe_cpufreq.c b/drivers/cpufreq/ppc_cbe_cpufreq.c index 6c5be63ce91..38540d1f593 100644 --- a/drivers/cpufreq/ppc_cbe_cpufreq.c +++ b/drivers/cpufreq/ppc_cbe_cpufreq.c @@ -128,17 +128,6 @@ static int cbe_cpufreq_cpu_init(struct cpufreq_policy *policy) return cpufreq_table_validate_and_show(policy, cbe_freqs); } -static int cbe_cpufreq_cpu_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - -static int cbe_cpufreq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, cbe_freqs); -} - static int cbe_cpufreq_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) @@ -174,10 +163,10 @@ static int cbe_cpufreq_target(struct cpufreq_policy *policy, } static struct cpufreq_driver cbe_cpufreq_driver = { - .verify = cbe_cpufreq_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = cbe_cpufreq_target, .init = cbe_cpufreq_cpu_init, - .exit = cbe_cpufreq_cpu_exit, + .exit = cpufreq_generic_exit, .name = "cbe-cpufreq", .flags = CPUFREQ_CONST_LOOPS, }; -- cgit v1.2.3-70-g09d2 From bf36e48d737ebcb2282f51c08e9c7667e30ed3b6 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:20 +0530 Subject: cpufreq: pxa: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the PXA driver. Cc: Eric Miao Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/pxa2xx-cpufreq.c | 27 ++------------------------- drivers/cpufreq/pxa3xx-cpufreq.c | 15 ++------------- 2 files changed, 4 insertions(+), 38 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/pxa2xx-cpufreq.c b/drivers/cpufreq/pxa2xx-cpufreq.c index 236531a0753..82905fe0041 100644 --- a/drivers/cpufreq/pxa2xx-cpufreq.c +++ b/drivers/cpufreq/pxa2xx-cpufreq.c @@ -262,23 +262,6 @@ static u32 mdrefr_dri(unsigned int freq) return (interval - (cpu_is_pxa27x() ? 31 : 0)) / 32; } -/* find a valid frequency point */ -static int pxa_verify_policy(struct cpufreq_policy *policy) -{ - struct cpufreq_frequency_table *pxa_freqs_table; - pxa_freqs_t *pxa_freqs; - int ret; - - find_freq_tables(&pxa_freqs_table, &pxa_freqs); - ret = cpufreq_frequency_table_verify(policy, pxa_freqs_table); - - if (freq_debug) - pr_debug("Verified CPU policy: %dKhz min to %dKhz max\n", - policy->min, policy->max); - - return ret; -} - static unsigned int pxa_cpufreq_get(unsigned int cpu) { return get_clk_frequency_khz(0); @@ -465,17 +448,11 @@ static int pxa_cpufreq_init(struct cpufreq_policy *policy) return 0; } -static int pxa_cpufreq_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - static struct cpufreq_driver pxa_cpufreq_driver = { - .verify = pxa_verify_policy, + .verify = cpufreq_generic_frequency_table_verify, .target = pxa_set_target, .init = pxa_cpufreq_init, - .exit = pxa_cpufreq_exit, + .exit = cpufreq_generic_exit, .get = pxa_cpufreq_get, .name = "PXA2xx", }; diff --git a/drivers/cpufreq/pxa3xx-cpufreq.c b/drivers/cpufreq/pxa3xx-cpufreq.c index 65fd01e57cb..ae3ac08a7b2 100644 --- a/drivers/cpufreq/pxa3xx-cpufreq.c +++ b/drivers/cpufreq/pxa3xx-cpufreq.c @@ -150,11 +150,6 @@ static void __update_bus_freq(struct pxa3xx_freq_info *info) cpu_relax(); } -static int pxa3xx_cpufreq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, pxa3xx_freqs_table); -} - static unsigned int pxa3xx_cpufreq_get(unsigned int cpu) { return pxa3xx_get_clk_frequency_khz(0); @@ -229,17 +224,11 @@ static int pxa3xx_cpufreq_init(struct cpufreq_policy *policy) return 0; } -static int pxa3xx_cpufreq_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - static struct cpufreq_driver pxa3xx_cpufreq_driver = { - .verify = pxa3xx_cpufreq_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = pxa3xx_cpufreq_set, .init = pxa3xx_cpufreq_init, - .exit = pxa3xx_cpufreq_exit, + .exit = cpufreq_generic_exit, .get = pxa3xx_cpufreq_get, .name = "pxa3xx-cpufreq", }; -- cgit v1.2.3-70-g09d2 From e96a410540764c21464c22660f7da9d3bfede815 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:21 +0530 Subject: cpufreq: s3cx4xx: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the s3cx4xx driver. Signed-off-by: Viresh Kumar Acked-by: Kukjin Kim Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/s3c2416-cpufreq.c | 19 ++----------------- drivers/cpufreq/s3c24xx-cpufreq.c | 9 --------- drivers/cpufreq/s3c64xx-cpufreq.c | 10 +--------- 3 files changed, 3 insertions(+), 35 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/s3c2416-cpufreq.c b/drivers/cpufreq/s3c2416-cpufreq.c index a7a4c612d15..8c57f10b2ff 100644 --- a/drivers/cpufreq/s3c2416-cpufreq.c +++ b/drivers/cpufreq/s3c2416-cpufreq.c @@ -87,16 +87,6 @@ static struct cpufreq_frequency_table s3c2450_freq_table[] = { { 0, CPUFREQ_TABLE_END }, }; -static int s3c2416_cpufreq_verify_speed(struct cpufreq_policy *policy) -{ - struct s3c2416_data *s3c_freq = &s3c2416_cpufreq; - - if (policy->cpu != 0) - return -EINVAL; - - return cpufreq_frequency_table_verify(policy, s3c_freq->freq_table); -} - static unsigned int s3c2416_cpufreq_get_speed(unsigned int cpu) { struct s3c2416_data *s3c_freq = &s3c2416_cpufreq; @@ -516,19 +506,14 @@ err_hclk: return ret; } -static struct freq_attr *s3c2416_cpufreq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver s3c2416_cpufreq_driver = { .flags = 0, - .verify = s3c2416_cpufreq_verify_speed, + .verify = cpufreq_generic_frequency_table_verify, .target = s3c2416_cpufreq_set_target, .get = s3c2416_cpufreq_get_speed, .init = s3c2416_cpufreq_driver_init, .name = "s3c2416", - .attr = s3c2416_cpufreq_attr, + .attr = cpufreq_generic_attr, }; static int __init s3c2416_cpufreq_init(void) diff --git a/drivers/cpufreq/s3c24xx-cpufreq.c b/drivers/cpufreq/s3c24xx-cpufreq.c index 73856d1d4d4..027dec1cf09 100644 --- a/drivers/cpufreq/s3c24xx-cpufreq.c +++ b/drivers/cpufreq/s3c24xx-cpufreq.c @@ -416,14 +416,6 @@ static int __init s3c_cpufreq_initclks(void) return 0; } -static int s3c_cpufreq_verify(struct cpufreq_policy *policy) -{ - if (policy->cpu != 0) - return -EINVAL; - - return 0; -} - #ifdef CONFIG_PM static struct cpufreq_frequency_table suspend_pll; static unsigned int suspend_freq; @@ -473,7 +465,6 @@ static int s3c_cpufreq_resume(struct cpufreq_policy *policy) static struct cpufreq_driver s3c24xx_driver = { .flags = CPUFREQ_STICKY, - .verify = s3c_cpufreq_verify, .target = s3c_cpufreq_target, .get = s3c_cpufreq_get, .init = s3c_cpufreq_init, diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c index 872f74dd401..99fbc49af95 100644 --- a/drivers/cpufreq/s3c64xx-cpufreq.c +++ b/drivers/cpufreq/s3c64xx-cpufreq.c @@ -54,14 +54,6 @@ static struct cpufreq_frequency_table s3c64xx_freq_table[] = { }; #endif -static int s3c64xx_cpufreq_verify_speed(struct cpufreq_policy *policy) -{ - if (policy->cpu != 0) - return -EINVAL; - - return cpufreq_frequency_table_verify(policy, s3c64xx_freq_table); -} - static unsigned int s3c64xx_cpufreq_get_speed(unsigned int cpu) { if (cpu != 0) @@ -264,7 +256,7 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy) static struct cpufreq_driver s3c64xx_cpufreq_driver = { .flags = 0, - .verify = s3c64xx_cpufreq_verify_speed, + .verify = cpufreq_generic_frequency_table_verify, .target = s3c64xx_cpufreq_set_target, .get = s3c64xx_cpufreq_get_speed, .init = s3c64xx_cpufreq_driver_init, -- cgit v1.2.3-70-g09d2 From 9c3c6e337d022291da119c9b5a210eae93884ec4 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:22 +0530 Subject: cpufreq: s5pv210: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the s5pv210 driver. Signed-off-by: Viresh Kumar Acked-by: Kukjin Kim Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/s5pv210-cpufreq.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/s5pv210-cpufreq.c b/drivers/cpufreq/s5pv210-cpufreq.c index c266a7ef3a7..0eafc528f13 100644 --- a/drivers/cpufreq/s5pv210-cpufreq.c +++ b/drivers/cpufreq/s5pv210-cpufreq.c @@ -174,14 +174,6 @@ static void s5pv210_set_refresh(enum s5pv210_dmc_port ch, unsigned long freq) __raw_writel(tmp1, reg); } -static int s5pv210_verify_speed(struct cpufreq_policy *policy) -{ - if (policy->cpu) - return -EINVAL; - - return cpufreq_frequency_table_verify(policy, s5pv210_freq_table); -} - static unsigned int s5pv210_getspeed(unsigned int cpu) { if (cpu) @@ -603,7 +595,7 @@ static int s5pv210_cpufreq_reboot_notifier_event(struct notifier_block *this, static struct cpufreq_driver s5pv210_driver = { .flags = CPUFREQ_STICKY, - .verify = s5pv210_verify_speed, + .verify = cpufreq_generic_frequency_table_verify, .target = s5pv210_target, .get = s5pv210_getspeed, .init = s5pv210_cpu_init, -- cgit v1.2.3-70-g09d2 From dd9f263956727320a2bcba8ffae7e9ab4a5be8a6 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:23 +0530 Subject: cpufreq: sa11x0: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the sa11x0 driver. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-sa1100/generic.c | 22 ---------------------- arch/arm/mach-sa1100/generic.h | 1 - drivers/cpufreq/sa1100-cpufreq.c | 2 +- drivers/cpufreq/sa1110-cpufreq.c | 2 +- 4 files changed, 2 insertions(+), 25 deletions(-) (limited to 'drivers/cpufreq') diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c index 5c8167b05c2..cb4b2ca3cf6 100644 --- a/arch/arm/mach-sa1100/generic.c +++ b/arch/arm/mach-sa1100/generic.c @@ -82,28 +82,6 @@ unsigned int sa11x0_ppcr_to_freq(unsigned int idx) return freq; } - -/* make sure that only the "userspace" governor is run -- anything else wouldn't make sense on - * this platform, anyway. - */ -int sa11x0_verify_speed(struct cpufreq_policy *policy) -{ - unsigned int tmp; - if (policy->cpu) - return -EINVAL; - - cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, policy->cpuinfo.max_freq); - - /* make sure that at least one frequency is within the policy */ - tmp = sa11x0_freq_table[sa11x0_freq_to_ppcr(policy->min)].frequency; - if (tmp > policy->max) - policy->max = tmp; - - cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, policy->cpuinfo.max_freq); - - return 0; -} - unsigned int sa11x0_getspeed(unsigned int cpu) { if (cpu) diff --git a/arch/arm/mach-sa1100/generic.h b/arch/arm/mach-sa1100/generic.h index f5214ce494a..39d56a67656 100644 --- a/arch/arm/mach-sa1100/generic.h +++ b/arch/arm/mach-sa1100/generic.h @@ -23,7 +23,6 @@ struct cpufreq_policy; extern struct cpufreq_frequency_table sa11x0_freq_table[]; extern unsigned int sa11x0_freq_to_ppcr(unsigned int khz); -extern int sa11x0_verify_speed(struct cpufreq_policy *policy); extern unsigned int sa11x0_getspeed(unsigned int cpu); extern unsigned int sa11x0_ppcr_to_freq(unsigned int idx); diff --git a/drivers/cpufreq/sa1100-cpufreq.c b/drivers/cpufreq/sa1100-cpufreq.c index 37fce2f1571..80a4fde0021 100644 --- a/drivers/cpufreq/sa1100-cpufreq.c +++ b/drivers/cpufreq/sa1100-cpufreq.c @@ -228,7 +228,7 @@ static int __init sa1100_cpu_init(struct cpufreq_policy *policy) static struct cpufreq_driver sa1100_driver __refdata = { .flags = CPUFREQ_STICKY, - .verify = sa11x0_verify_speed, + .verify = cpufreq_generic_frequency_table_verify, .target = sa1100_target, .get = sa11x0_getspeed, .init = sa1100_cpu_init, diff --git a/drivers/cpufreq/sa1110-cpufreq.c b/drivers/cpufreq/sa1110-cpufreq.c index 13760fc6385..a38d904d168 100644 --- a/drivers/cpufreq/sa1110-cpufreq.c +++ b/drivers/cpufreq/sa1110-cpufreq.c @@ -344,7 +344,7 @@ static int __init sa1110_cpu_init(struct cpufreq_policy *policy) * it with cpufreq_register_driver() */ static struct cpufreq_driver sa1110_driver __refdata = { .flags = CPUFREQ_STICKY, - .verify = sa11x0_verify_speed, + .verify = cpufreq_generic_frequency_table_verify, .target = sa1110_target, .get = sa11x0_getspeed, .init = sa1110_cpu_init, -- cgit v1.2.3-70-g09d2 From a823c4aecdcdc0ead1a80f280cb2baa31d118462 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:24 +0530 Subject: cpufreq: sc520: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the sc520 driver. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/sc520_freq.c | 24 +++--------------------- 1 file changed, 3 insertions(+), 21 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/sc520_freq.c b/drivers/cpufreq/sc520_freq.c index bb9c0def3f0..85562251f99 100644 --- a/drivers/cpufreq/sc520_freq.c +++ b/drivers/cpufreq/sc520_freq.c @@ -78,11 +78,6 @@ static void sc520_freq_set_cpu_state(struct cpufreq_policy *policy, cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); }; -static int sc520_freq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, &sc520_freq_table[0]); -} - static int sc520_freq_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) @@ -120,27 +115,14 @@ static int sc520_freq_cpu_init(struct cpufreq_policy *policy) } -static int sc520_freq_cpu_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - - -static struct freq_attr *sc520_freq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - - static struct cpufreq_driver sc520_freq_driver = { .get = sc520_freq_get_cpu_frequency, - .verify = sc520_freq_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = sc520_freq_target, .init = sc520_freq_cpu_init, - .exit = sc520_freq_cpu_exit, + .exit = cpufreq_generic_exit, .name = "sc520_freq", - .attr = sc520_freq_attr, + .attr = cpufreq_generic_attr, }; static const struct x86_cpu_id sc520_ids[] = { -- cgit v1.2.3-70-g09d2 From a8f64decf383aaf16fd4698f753d3a4c26fbba7d Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:25 +0530 Subject: cpufreq: sh: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the sh driver. Cc: Paul Mundt Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/sh-cpufreq.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/sh-cpufreq.c b/drivers/cpufreq/sh-cpufreq.c index f1fb944d714..c681b86932c 100644 --- a/drivers/cpufreq/sh-cpufreq.c +++ b/drivers/cpufreq/sh-cpufreq.c @@ -151,11 +151,6 @@ static int sh_cpufreq_cpu_exit(struct cpufreq_policy *policy) return 0; } -static struct freq_attr *sh_freq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver sh_cpufreq_driver = { .name = "sh", .get = sh_cpufreq_get, @@ -163,7 +158,7 @@ static struct cpufreq_driver sh_cpufreq_driver = { .verify = sh_cpufreq_verify, .init = sh_cpufreq_cpu_init, .exit = sh_cpufreq_cpu_exit, - .attr = sh_freq_attr, + .attr = cpufreq_generic_attr, }; static int __init sh_cpufreq_module_init(void) -- cgit v1.2.3-70-g09d2 From 7a1874a0645b7cefd80c379db6d78916dd0788a1 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:26 +0530 Subject: cpufreq: sparc: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the sparc driver. Cc: David S. Miller Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/sparc-us2e-cpufreq.c | 8 +------- drivers/cpufreq/sparc-us3-cpufreq.c | 8 +------- 2 files changed, 2 insertions(+), 14 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/sparc-us2e-cpufreq.c b/drivers/cpufreq/sparc-us2e-cpufreq.c index 8db0c1890c9..291688c1da9 100644 --- a/drivers/cpufreq/sparc-us2e-cpufreq.c +++ b/drivers/cpufreq/sparc-us2e-cpufreq.c @@ -295,12 +295,6 @@ static int us2e_freq_target(struct cpufreq_policy *policy, return 0; } -static int us2e_freq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, - &us2e_freq_table[policy->cpu].table[0]); -} - static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy) { unsigned int cpu = policy->cpu; @@ -363,7 +357,7 @@ static int __init us2e_freq_init(void) goto err_out; driver->init = us2e_freq_cpu_init; - driver->verify = us2e_freq_verify; + driver->verify = cpufreq_generic_frequency_table_verify; driver->target = us2e_freq_target; driver->get = us2e_freq_get; driver->exit = us2e_freq_cpu_exit; diff --git a/drivers/cpufreq/sparc-us3-cpufreq.c b/drivers/cpufreq/sparc-us3-cpufreq.c index 120a2df2bc7..9b3dbd31362 100644 --- a/drivers/cpufreq/sparc-us3-cpufreq.c +++ b/drivers/cpufreq/sparc-us3-cpufreq.c @@ -156,12 +156,6 @@ static int us3_freq_target(struct cpufreq_policy *policy, return 0; } -static int us3_freq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, - &us3_freq_table[policy->cpu].table[0]); -} - static int __init us3_freq_cpu_init(struct cpufreq_policy *policy) { unsigned int cpu = policy->cpu; @@ -224,7 +218,7 @@ static int __init us3_freq_init(void) goto err_out; driver->init = us3_freq_cpu_init; - driver->verify = us3_freq_verify; + driver->verify = cpufreq_generic_frequency_table_verify; driver->target = us3_freq_target; driver->get = us3_freq_get; driver->exit = us3_freq_cpu_exit; -- cgit v1.2.3-70-g09d2 From e2132fa66d1ee74a975fd6c42c0aa2fe91e3fc75 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:27 +0530 Subject: cpufreq: spear: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the spear driver. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/spear-cpufreq.c | 22 +++------------------- 1 file changed, 3 insertions(+), 19 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/spear-cpufreq.c b/drivers/cpufreq/spear-cpufreq.c index b86be6bd9b9..e9657e33b65 100644 --- a/drivers/cpufreq/spear-cpufreq.c +++ b/drivers/cpufreq/spear-cpufreq.c @@ -30,11 +30,6 @@ static struct { u32 cnt; } spear_cpufreq; -static int spear_cpufreq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, spear_cpufreq.freq_tbl); -} - static unsigned int spear_cpufreq_get(unsigned int cpu) { return clk_get_rate(spear_cpufreq.clk) / 1000; @@ -192,26 +187,15 @@ static int spear_cpufreq_init(struct cpufreq_policy *policy) return 0; } -static int spear_cpufreq_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - -static struct freq_attr *spear_cpufreq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver spear_cpufreq_driver = { .name = "cpufreq-spear", .flags = CPUFREQ_STICKY, - .verify = spear_cpufreq_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = spear_cpufreq_target, .get = spear_cpufreq_get, .init = spear_cpufreq_init, - .exit = spear_cpufreq_exit, - .attr = spear_cpufreq_attr, + .exit = cpufreq_generic_exit, + .attr = cpufreq_generic_attr, }; static int spear_cpufreq_driver_init(void) -- cgit v1.2.3-70-g09d2 From 3be1394a6873496c36d99899fb6ba76ff03a2e96 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:28 +0530 Subject: cpufreq: speedstep: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the speedstep driver. Cc: David S. Miller Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/speedstep-centrino.c | 22 ++-------------------- drivers/cpufreq/speedstep-ich.c | 30 +++--------------------------- drivers/cpufreq/speedstep-smi.c | 30 +++--------------------------- 3 files changed, 8 insertions(+), 74 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c index f180561c363..c7c14ae1935 100644 --- a/drivers/cpufreq/speedstep-centrino.c +++ b/drivers/cpufreq/speedstep-centrino.c @@ -419,19 +419,6 @@ static int centrino_cpu_exit(struct cpufreq_policy *policy) return 0; } -/** - * centrino_verify - verifies a new CPUFreq policy - * @policy: new policy - * - * Limit must be within this model's frequency range at least one - * border included. - */ -static int centrino_verify (struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, - per_cpu(centrino_model, policy->cpu)->op_points); -} - /** * centrino_setpolicy - set a new CPUFreq policy * @policy: new policy @@ -553,20 +540,15 @@ out: return retval; } -static struct freq_attr* centrino_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver centrino_driver = { .name = "centrino", /* should be speedstep-centrino, but there's a 16 char limit */ .init = centrino_cpu_init, .exit = centrino_cpu_exit, - .verify = centrino_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = centrino_target, .get = get_cur_freq, - .attr = centrino_attr, + .attr = cpufreq_generic_attr, }; /* diff --git a/drivers/cpufreq/speedstep-ich.c b/drivers/cpufreq/speedstep-ich.c index 86a184eaa81..929a4f0469a 100644 --- a/drivers/cpufreq/speedstep-ich.c +++ b/drivers/cpufreq/speedstep-ich.c @@ -289,18 +289,6 @@ static int speedstep_target(struct cpufreq_policy *policy, } -/** - * speedstep_verify - verifies a new CPUFreq policy - * @policy: new policy - * - * Limit must be within speedstep_low_freq and speedstep_high_freq, with - * at least one border included. - */ -static int speedstep_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, &speedstep_freqs[0]); -} - struct get_freqs { struct cpufreq_policy *policy; int ret; @@ -352,26 +340,14 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy) } -static int speedstep_cpu_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - -static struct freq_attr *speedstep_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - - static struct cpufreq_driver speedstep_driver = { .name = "speedstep-ich", - .verify = speedstep_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = speedstep_target, .init = speedstep_cpu_init, - .exit = speedstep_cpu_exit, + .exit = cpufreq_generic_exit, .get = speedstep_get, - .attr = speedstep_attr, + .attr = cpufreq_generic_attr, }; static const struct x86_cpu_id ss_smi_ids[] = { diff --git a/drivers/cpufreq/speedstep-smi.c b/drivers/cpufreq/speedstep-smi.c index f4d03186e0c..b3dfba0daab 100644 --- a/drivers/cpufreq/speedstep-smi.c +++ b/drivers/cpufreq/speedstep-smi.c @@ -264,19 +264,6 @@ static int speedstep_target(struct cpufreq_policy *policy, } -/** - * speedstep_verify - verifies a new CPUFreq policy - * @policy: new policy - * - * Limit must be within speedstep_low_freq and speedstep_high_freq, with - * at least one border included. - */ -static int speedstep_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, &speedstep_freqs[0]); -} - - static int speedstep_cpu_init(struct cpufreq_policy *policy) { int result; @@ -332,12 +319,6 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy) return cpufreq_table_validate_and_show(policy, speedstep_freqs); } -static int speedstep_cpu_exit(struct cpufreq_policy *policy) -{ - cpufreq_frequency_table_put_attr(policy->cpu); - return 0; -} - static unsigned int speedstep_get(unsigned int cpu) { if (cpu) @@ -356,20 +337,15 @@ static int speedstep_resume(struct cpufreq_policy *policy) return result; } -static struct freq_attr *speedstep_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver speedstep_driver = { .name = "speedstep-smi", - .verify = speedstep_verify, + .verify = cpufreq_generic_frequency_table_verify, .target = speedstep_target, .init = speedstep_cpu_init, - .exit = speedstep_cpu_exit, + .exit = cpufreq_generic_exit, .get = speedstep_get, .resume = speedstep_resume, - .attr = speedstep_attr, + .attr = cpufreq_generic_attr, }; static const struct x86_cpu_id ss_smi_ids[] = { -- cgit v1.2.3-70-g09d2 From 8e08cf03a46299bc1ebf9dbd2ebe7d3093f89541 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:29 +0530 Subject: cpufreq: tegra: Use generic cpufreq routines Most of the CPUFreq drivers do similar things in .exit() and .verify() routines and .attr. So its better if we have generic routines for them which can be used by cpufreq drivers then. This patch uses these generic routines in the Tegra driver. Cc: Stephen Warren Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/tegra-cpufreq.c | 14 ++------------ 1 file changed, 2 insertions(+), 12 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c index e0140779b86..c36a8e7036a 100644 --- a/drivers/cpufreq/tegra-cpufreq.c +++ b/drivers/cpufreq/tegra-cpufreq.c @@ -51,11 +51,6 @@ static unsigned long target_cpu_speed[NUM_CPUS]; static DEFINE_MUTEX(tegra_cpu_lock); static bool is_suspended; -static int tegra_verify_speed(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, freq_table); -} - static unsigned int tegra_getspeed(unsigned int cpu) { unsigned long rate; @@ -237,19 +232,14 @@ static int tegra_cpu_exit(struct cpufreq_policy *policy) return 0; } -static struct freq_attr *tegra_cpufreq_attr[] = { - &cpufreq_freq_attr_scaling_available_freqs, - NULL, -}; - static struct cpufreq_driver tegra_cpufreq_driver = { - .verify = tegra_verify_speed, + .verify = cpufreq_generic_frequency_table_verify, .target = tegra_target, .get = tegra_getspeed, .init = tegra_cpu_init, .exit = tegra_cpu_exit, .name = "tegra", - .attr = tegra_cpufreq_attr, + .attr = cpufreq_generic_attr, }; static int __init tegra_cpufreq_init(void) -- cgit v1.2.3-70-g09d2 From da60ce9f2faca87013fd3cab1c3bed5183608c3d Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:30 +0530 Subject: cpufreq: call cpufreq_driver->get() after calling ->init() Almost all drivers set policy->cur with current CPU frequency in their ->init() part. This can be done for all of them at core level and so they wouldn't need to do it. This patch adds supporting code in cpufreq core for calling get() after we have called init() for a policy. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index fc9110c9f10..f033adf06ea 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1042,6 +1042,14 @@ static int __cpufreq_add_dev(struct device *dev, struct subsys_interface *sif, goto err_set_policy_cpu; } + if (cpufreq_driver->get) { + policy->cur = cpufreq_driver->get(policy->cpu); + if (!policy->cur) { + pr_err("%s: ->get() failed\n", __func__); + goto err_get_freq; + } + } + /* related cpus should atleast have policy->cpus */ cpumask_or(policy->related_cpus, policy->related_cpus, policy->cpus); @@ -1096,6 +1104,9 @@ err_out_unregister: per_cpu(cpufreq_cpu_data, j) = NULL; write_unlock_irqrestore(&cpufreq_driver_lock, flags); +err_get_freq: + if (cpufreq_driver->exit) + cpufreq_driver->exit(policy); err_set_policy_cpu: cpufreq_policy_free(policy); nomem_out: -- cgit v1.2.3-70-g09d2 From 2f75db781b88df2ee4bd62254efbb2768e3619bd Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:31 +0530 Subject: cpufreq: acpi-cpufreq: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/acpi-cpufreq.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c index 94a5a1d1eec..a8dac7b5304 100644 --- a/drivers/cpufreq/acpi-cpufreq.c +++ b/drivers/cpufreq/acpi-cpufreq.c @@ -842,7 +842,6 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) break; case ACPI_ADR_SPACE_FIXED_HARDWARE: acpi_cpufreq_driver.get = get_cur_freq_on_cpu; - policy->cur = get_cur_freq_on_cpu(cpu); break; default: break; -- cgit v1.2.3-70-g09d2 From e4c8afe3a06c682e215c3e38240126b652fa98d0 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:32 +0530 Subject: cpufreq: arm_big_little: don't initialize part of policy is set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/arm_big_little.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c index 132c966471c..f7717efdd28 100644 --- a/drivers/cpufreq/arm_big_little.c +++ b/drivers/cpufreq/arm_big_little.c @@ -171,8 +171,6 @@ static int bL_cpufreq_init(struct cpufreq_policy *policy) else policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; - policy->cur = bL_cpufreq_get(policy->cpu); - cpumask_copy(policy->cpus, topology_core_cpumask(policy->cpu)); dev_info(cpu_dev, "%s: CPU %d initialized\n", __func__, policy->cpu); -- cgit v1.2.3-70-g09d2 From 017189b51e0eecd58cf4f65f6f16d59dae6c1368 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:33 +0530 Subject: cpufreq: at32ap: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Acked-by: Hans-Christian Egtvedt Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/at32ap-cpufreq.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/at32ap-cpufreq.c b/drivers/cpufreq/at32ap-cpufreq.c index 788f7e77565..7439deddd5c 100644 --- a/drivers/cpufreq/at32ap-cpufreq.c +++ b/drivers/cpufreq/at32ap-cpufreq.c @@ -77,7 +77,7 @@ static int at32_set_target(struct cpufreq_policy *policy, static int __init at32_cpufreq_driver_init(struct cpufreq_policy *policy) { - unsigned int frequency, rate; + unsigned int frequency, rate, min_freq; int retval, steps, i; if (policy->cpu != 0) @@ -90,12 +90,9 @@ static int __init at32_cpufreq_driver_init(struct cpufreq_policy *policy) goto out_err; } - policy->cpuinfo.min_freq = (clk_round_rate(cpuclk, 1) + 500) / 1000; - policy->cpuinfo.max_freq = (clk_round_rate(cpuclk, ~0UL) + 500) / 1000; + min_freq = (clk_round_rate(cpuclk, 1) + 500) / 1000; + frequency = (clk_round_rate(cpuclk, ~0UL) + 500) / 1000; policy->cpuinfo.transition_latency = 0; - policy->cur = at32_get_speed(0); - policy->min = policy->cpuinfo.min_freq; - policy->max = policy->cpuinfo.max_freq; /* * AVR32 CPU frequency rate scales in power of two between maximum and @@ -104,7 +101,7 @@ static int __init at32_cpufreq_driver_init(struct cpufreq_policy *policy) * Further validate that the frequency is usable, and append it to the * frequency table. */ - steps = fls(policy->cpuinfo.max_freq / policy->cpuinfo.min_freq) + 1; + steps = fls(frequency / min_freq) + 1; freq_table = kzalloc(steps * sizeof(struct cpufreq_frequency_table), GFP_KERNEL); if (!freq_table) { @@ -112,7 +109,6 @@ static int __init at32_cpufreq_driver_init(struct cpufreq_policy *policy) goto out_err_put_clk; } - frequency = policy->cpuinfo.max_freq; for (i = 0; i < (steps - 1); i++) { rate = clk_round_rate(cpuclk, frequency * 1000) / 1000; -- cgit v1.2.3-70-g09d2 From 49ad1eabb6b46bc9d5b4f6c21bf0a555f35905d5 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:34 +0530 Subject: cpufreq: blackfin: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Cc: Steven Miao Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/blackfin-cpufreq.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/blackfin-cpufreq.c b/drivers/cpufreq/blackfin-cpufreq.c index 48888cf23bb..0bc9e8c2c79 100644 --- a/drivers/cpufreq/blackfin-cpufreq.c +++ b/drivers/cpufreq/blackfin-cpufreq.c @@ -204,7 +204,6 @@ static int __bfin_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = 50000; /* 50us assumed */ - policy->cur = cclk; return cpufreq_table_validate_and_show(policy, bfin_freq_table); } -- cgit v1.2.3-70-g09d2 From 179b889f7c5e6221a9fbf60cf4ef5e55be45cf34 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:35 +0530 Subject: cpufreq: cpu0: don't initialize part of policy set by core too Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Signed-off-by: Viresh Kumar Acked-by: Shawn Guo Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq-cpu0.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index c4a7514b1e1..3c09a265903 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -131,7 +131,6 @@ static int cpu0_cpufreq_init(struct cpufreq_policy *policy) } policy->cpuinfo.transition_latency = transition_latency; - policy->cur = clk_get_rate(cpu_clk) / 1000; /* * The driver only supports the SMP configuartion where all processors -- cgit v1.2.3-70-g09d2 From 43d864066fdb55fe6f914e07862d600d9c48e455 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:36 +0530 Subject: cpufreq: nforce2: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq-nforce2.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cpufreq-nforce2.c b/drivers/cpufreq/cpufreq-nforce2.c index 56c964c16a6..a05b876f375 100644 --- a/drivers/cpufreq/cpufreq-nforce2.c +++ b/drivers/cpufreq/cpufreq-nforce2.c @@ -360,7 +360,6 @@ static int nforce2_cpu_init(struct cpufreq_policy *policy) policy->min = policy->cpuinfo.min_freq = min_fsb * fid * 100; policy->max = policy->cpuinfo.max_freq = max_fsb * fid * 100; policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; - policy->cur = nforce2_get(policy->cpu); return 0; } -- cgit v1.2.3-70-g09d2 From 0a7485e19d7dded0c8cd2e309b5ff72b6e8ab3ce Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:37 +0530 Subject: cpufreq: cris: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Cc: Mikael Starvik Signed-off-by: Viresh Kumar Acked-by: Jesper Nilsson Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cris-artpec3-cpufreq.c | 1 - drivers/cpufreq/cris-etraxfs-cpufreq.c | 1 - 2 files changed, 2 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cris-artpec3-cpufreq.c b/drivers/cpufreq/cris-artpec3-cpufreq.c index d26f4e45dab..4d88e4fa2ad 100644 --- a/drivers/cpufreq/cris-artpec3-cpufreq.c +++ b/drivers/cpufreq/cris-artpec3-cpufreq.c @@ -73,7 +73,6 @@ static int cris_freq_cpu_init(struct cpufreq_policy *policy) { /* cpuinfo and default policy values */ policy->cpuinfo.transition_latency = 1000000; /* 1ms */ - policy->cur = cris_freq_get_cpu_frequency(0); return cpufreq_table_validate_and_show(policy, cris_freq_table); } diff --git a/drivers/cpufreq/cris-etraxfs-cpufreq.c b/drivers/cpufreq/cris-etraxfs-cpufreq.c index d384e638fdb..f7d2d49f7c0 100644 --- a/drivers/cpufreq/cris-etraxfs-cpufreq.c +++ b/drivers/cpufreq/cris-etraxfs-cpufreq.c @@ -72,7 +72,6 @@ static int cris_freq_cpu_init(struct cpufreq_policy *policy) { /* cpuinfo and default policy values */ policy->cpuinfo.transition_latency = 1000000; /* 1ms */ - policy->cur = cris_freq_get_cpu_frequency(0); return cpufreq_table_validate_and_show(policy, cris_freq_table); } -- cgit v1.2.3-70-g09d2 From b31c95d72d40b5b0cac318d17c69c69582b55a98 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:38 +0530 Subject: cpufreq: davinci: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Cc: Sekhar Nori Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/davinci-cpufreq.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/davinci-cpufreq.c b/drivers/cpufreq/davinci-cpufreq.c index f2286423665..55cf09425db 100644 --- a/drivers/cpufreq/davinci-cpufreq.c +++ b/drivers/cpufreq/davinci-cpufreq.c @@ -136,8 +136,6 @@ static int davinci_cpu_init(struct cpufreq_policy *policy) return result; } - policy->cur = davinci_getspeed(0); - result = cpufreq_table_validate_and_show(policy, freq_table); if (result) { pr_err("%s: cpufreq_table_validate_and_show() failed", -- cgit v1.2.3-70-g09d2 From ceb7682ee313e353ea34fec80727fe7f986f0be1 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:39 +0530 Subject: cpufreq: dbx500: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Cc: Linus Walleij Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/dbx500-cpufreq.c | 5 ----- 1 file changed, 5 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/dbx500-cpufreq.c b/drivers/cpufreq/dbx500-cpufreq.c index 2d706378500..ae1aa60b138 100644 --- a/drivers/cpufreq/dbx500-cpufreq.c +++ b/drivers/cpufreq/dbx500-cpufreq.c @@ -83,11 +83,6 @@ static int dbx500_cpufreq_init(struct cpufreq_policy *policy) return res; } - policy->min = policy->cpuinfo.min_freq; - policy->max = policy->cpuinfo.max_freq; - policy->cur = dbx500_cpufreq_getspeed(policy->cpu); - policy->governor = CPUFREQ_DEFAULT_GOVERNOR; - /* * FIXME : Need to take time measurement across the target() * function with no/some/all drivers in the notification -- cgit v1.2.3-70-g09d2 From 18bb6de7c475f4a2299b35d7f34d72be10c71466 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:40 +0530 Subject: cpufreq: e_powersaver: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/e_powersaver.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/e_powersaver.c b/drivers/cpufreq/e_powersaver.c index a8cbbd05436..2c11ce3c67b 100644 --- a/drivers/cpufreq/e_powersaver.c +++ b/drivers/cpufreq/e_powersaver.c @@ -395,7 +395,6 @@ static int eps_cpu_init(struct cpufreq_policy *policy) } policy->cpuinfo.transition_latency = 140000; /* 844mV -> 700mV in ns */ - policy->cur = fsb * current_multiplier; ret = cpufreq_table_validate_and_show(policy, ¢aur->freq_table[0]); if (ret) { -- cgit v1.2.3-70-g09d2 From daaf2a46c5f77120ce3cb92fb548972ee5db74bc Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:41 +0530 Subject: cpufreq: elanfreq: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/elanfreq.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/elanfreq.c b/drivers/cpufreq/elanfreq.c index fe7053cd68a..d91a645a27a 100644 --- a/drivers/cpufreq/elanfreq.c +++ b/drivers/cpufreq/elanfreq.c @@ -207,7 +207,6 @@ static int elanfreq_cpu_init(struct cpufreq_policy *policy) /* cpuinfo and default policy values */ policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; - policy->cur = elanfreq_get_cpu_frequency(0); return cpufreq_table_validate_and_show(policy, elanfreq_table); } -- cgit v1.2.3-70-g09d2 From 77fa10501861a141492a5cca6a62af14a7a5b2dc Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:42 +0530 Subject: cpufreq: exynos: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Signed-off-by: Viresh Kumar Acked-By: Amit Daniel Kachhap Acked-by: Kukjin Kim Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/exynos-cpufreq.c | 2 -- drivers/cpufreq/exynos5440-cpufreq.c | 1 - 2 files changed, 3 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c index 08338d42c77..5244086bb9c 100644 --- a/drivers/cpufreq/exynos-cpufreq.c +++ b/drivers/cpufreq/exynos-cpufreq.c @@ -241,8 +241,6 @@ static struct notifier_block exynos_cpufreq_nb = { static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy) { - policy->cur = policy->min = policy->max = exynos_getspeed(policy->cpu); - /* set the transition latency value */ policy->cpuinfo.transition_latency = 100000; diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c index bce6f7442aa..9b7fdec1962 100644 --- a/drivers/cpufreq/exynos5440-cpufreq.c +++ b/drivers/cpufreq/exynos5440-cpufreq.c @@ -326,7 +326,6 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy) return ret; } - policy->cur = dvfs_info->cur_frequency; policy->cpuinfo.transition_latency = dvfs_info->latency; cpumask_setall(policy->cpus); -- cgit v1.2.3-70-g09d2 From cd59064372bef595709a85ae18fae159803aa791 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:43 +0530 Subject: cpufreq: gx: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/gx-suspmod.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/gx-suspmod.c b/drivers/cpufreq/gx-suspmod.c index 70442c7b5e7..d83e8266a58 100644 --- a/drivers/cpufreq/gx-suspmod.c +++ b/drivers/cpufreq/gx-suspmod.c @@ -401,7 +401,7 @@ static int cpufreq_gx_target(struct cpufreq_policy *policy, static int cpufreq_gx_cpu_init(struct cpufreq_policy *policy) { - unsigned int maxfreq, curfreq; + unsigned int maxfreq; if (!policy || policy->cpu != 0) return -ENODEV; @@ -415,10 +415,8 @@ static int cpufreq_gx_cpu_init(struct cpufreq_policy *policy) maxfreq = 30000 * gx_freq_mult[getCx86(CX86_DIR1) & 0x0f]; stock_freq = maxfreq; - curfreq = gx_get_cpuspeed(0); pr_debug("cpu max frequency is %d.\n", maxfreq); - pr_debug("cpu current frequency is %dkHz.\n", curfreq); /* setup basic struct for cpufreq API */ policy->cpu = 0; @@ -428,7 +426,6 @@ static int cpufreq_gx_cpu_init(struct cpufreq_policy *policy) else policy->min = maxfreq / POLICY_MIN_DIV; policy->max = maxfreq; - policy->cur = curfreq; policy->cpuinfo.min_freq = maxfreq / max_duration; policy->cpuinfo.max_freq = maxfreq; policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; -- cgit v1.2.3-70-g09d2 From 34a2548890ccccd9c9a3c7ad3d610ad133a6c04a Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:44 +0530 Subject: cpufreq: ia64-acpi: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Cc: Tony Luck Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/ia64-acpi-cpufreq.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/ia64-acpi-cpufreq.c b/drivers/cpufreq/ia64-acpi-cpufreq.c index b958bdb17f5..90c6598415f 100644 --- a/drivers/cpufreq/ia64-acpi-cpufreq.c +++ b/drivers/cpufreq/ia64-acpi-cpufreq.c @@ -305,7 +305,6 @@ acpi_cpufreq_cpu_init ( data->acpi_data.states[i].transition_latency * 1000; } } - policy->cur = processor_get_freq(data, policy->cpu); /* table init */ for (i = 0; i <= data->acpi_data.state_count; i++) -- cgit v1.2.3-70-g09d2 From 5e62178cb9088edc002c848912f8610b159d57a8 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:45 +0530 Subject: cpufreq: imx6q: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Cc: Shawn Guo Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/imx6q-cpufreq.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c index d8396573746..9d22dfa7a2b 100644 --- a/drivers/cpufreq/imx6q-cpufreq.c +++ b/drivers/cpufreq/imx6q-cpufreq.c @@ -163,7 +163,6 @@ static int imx6q_cpufreq_init(struct cpufreq_policy *policy) } policy->cpuinfo.transition_latency = transition_latency; - policy->cur = clk_get_rate(arm_clk) / 1000; cpumask_setall(policy->cpus); return 0; -- cgit v1.2.3-70-g09d2 From ab537016e86467bd2b9a5d091e24ca563d0d7dc6 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:46 +0530 Subject: cpufreq: integrator: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). And so we don't need to set policy->cur from driver anymore. Over that it sets policy->min and max correctly. They were earlier set to current frequency of CPU but they should be set to max and min freq of cpu. Cc: Russell King Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/integrator-cpufreq.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/integrator-cpufreq.c b/drivers/cpufreq/integrator-cpufreq.c index 8152a9bb7e2..babf3e40e9f 100644 --- a/drivers/cpufreq/integrator-cpufreq.c +++ b/drivers/cpufreq/integrator-cpufreq.c @@ -181,10 +181,9 @@ static int integrator_cpufreq_init(struct cpufreq_policy *policy) { /* set default policy and cpuinfo */ - policy->cpuinfo.max_freq = 160000; - policy->cpuinfo.min_freq = 12000; + policy->max = policy->cpuinfo.max_freq = 160000; + policy->min = policy->cpuinfo.min_freq = 12000; policy->cpuinfo.transition_latency = 1000000; /* 1 ms, assumed */ - policy->cur = policy->min = policy->max = integrator_get(policy->cpu); return 0; } -- cgit v1.2.3-70-g09d2 From 1cdf547790db07db200516ebd0d427e20eb37f69 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:47 +0530 Subject: cpufreq: kirkwood: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Tested-by: Andrew Lunn Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/kirkwood-cpufreq.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/kirkwood-cpufreq.c b/drivers/cpufreq/kirkwood-cpufreq.c index 1a4e4f4420a..dc434c44ace 100644 --- a/drivers/cpufreq/kirkwood-cpufreq.c +++ b/drivers/cpufreq/kirkwood-cpufreq.c @@ -122,7 +122,6 @@ static int kirkwood_cpufreq_cpu_init(struct cpufreq_policy *policy) { /* cpuinfo and default policy values */ policy->cpuinfo.transition_latency = 5000; /* 5uS */ - policy->cur = kirkwood_cpufreq_get_cpu_frequency(0); return cpufreq_table_validate_and_show(policy, kirkwood_freq_table); } -- cgit v1.2.3-70-g09d2 From b1123ea3c3e4874c03daaf8b742f2a12ada5d548 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:48 +0530 Subject: cpufreq: longhaul: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/longhaul.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/longhaul.c b/drivers/cpufreq/longhaul.c index 57d7b02f863..14df4974fb4 100644 --- a/drivers/cpufreq/longhaul.c +++ b/drivers/cpufreq/longhaul.c @@ -913,7 +913,6 @@ static int longhaul_cpu_init(struct cpufreq_policy *policy) longhaul_setup_voltagescaling(); policy->cpuinfo.transition_latency = 200000; /* nsec */ - policy->cur = calc_speed(longhaul_get_cpu_mult()); return cpufreq_table_validate_and_show(policy, longhaul_table); } -- cgit v1.2.3-70-g09d2 From adbed6e8473db90b18ef1cc3bf6f7f87e6cc46b7 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:49 +0530 Subject: cpufreq: loongson2: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Cc: John Crispin Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/loongson2_cpufreq.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c index ed7fbe23437..dd4f3e46f72 100644 --- a/drivers/cpufreq/loongson2_cpufreq.c +++ b/drivers/cpufreq/loongson2_cpufreq.c @@ -131,8 +131,6 @@ static int loongson2_cpufreq_cpu_init(struct cpufreq_policy *policy) return ret; } - policy->cur = loongson2_cpufreq_get(policy->cpu); - return cpufreq_table_validate_and_show(policy, &loongson2_clockmod_table[0]); } -- cgit v1.2.3-70-g09d2 From d31a4a9ae0d09a56154c7408406efd2ffbc23985 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:50 +0530 Subject: cpufreq: maple: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Cc: Dmitry Eremin-Solenikov Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/maple-cpufreq.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/maple-cpufreq.c b/drivers/cpufreq/maple-cpufreq.c index b23d1d8ab9c..1c0cec1518f 100644 --- a/drivers/cpufreq/maple-cpufreq.c +++ b/drivers/cpufreq/maple-cpufreq.c @@ -166,7 +166,6 @@ static unsigned int maple_cpufreq_get_speed(unsigned int cpu) static int maple_cpufreq_cpu_init(struct cpufreq_policy *policy) { policy->cpuinfo.transition_latency = 12000; - policy->cur = maple_cpu_freqs[maple_scom_query_freq()].frequency; /* secondary CPUs are tied to the primary one by the * cpufreq core if in the secondary policy we tell it that * it actually must be one policy together with all others. */ -- cgit v1.2.3-70-g09d2 From 1857a25cd3f0827f413be3328490dc5dc56e0f10 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:51 +0530 Subject: cpufreq: omap: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Cc: Santosh Shilimkar Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/omap-cpufreq.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c index 48020b5b6a9..a8c3f90571e 100644 --- a/drivers/cpufreq/omap-cpufreq.c +++ b/drivers/cpufreq/omap-cpufreq.c @@ -171,8 +171,6 @@ static int omap_cpu_init(struct cpufreq_policy *policy) goto fail_ck; } - policy->cur = omap_getspeed(policy->cpu); - if (!freq_table) result = opp_init_cpufreq_table(mpu_dev, &freq_table); @@ -188,8 +186,6 @@ static int omap_cpu_init(struct cpufreq_policy *policy) if (result) goto fail_table; - policy->cur = omap_getspeed(policy->cpu); - /* * On OMAP SMP configuartion, both processors share the voltage * and clock. So both CPUs needs to be scaled together and hence -- cgit v1.2.3-70-g09d2 From c8fb6e9a906c97d86c9d7dda20e0141f952db678 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:52 +0530 Subject: cpufreq: p4: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Cc: David S. Miller Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/p4-clockmod.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c index 4fe6d4cac74..6164c1cca50 100644 --- a/drivers/cpufreq/p4-clockmod.c +++ b/drivers/cpufreq/p4-clockmod.c @@ -230,7 +230,6 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy) /* the transition latency is set to be 1 higher than the maximum * transition latency of the ondemand governor */ policy->cpuinfo.transition_latency = 10000001; - policy->cur = stock_freq; return cpufreq_table_validate_and_show(policy, &p4clockmod_table[0]); } -- cgit v1.2.3-70-g09d2 From 6b67ca322d409003c29e119f8c8beeecd5785e20 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:53 +0530 Subject: cpufreq: pcc: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/pcc-cpufreq.c | 7 ------- 1 file changed, 7 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/pcc-cpufreq.c b/drivers/cpufreq/pcc-cpufreq.c index 78787e965e0..ef663474a64 100644 --- a/drivers/cpufreq/pcc-cpufreq.c +++ b/drivers/cpufreq/pcc-cpufreq.c @@ -559,13 +559,6 @@ static int pcc_cpufreq_cpu_init(struct cpufreq_policy *policy) ioread32(&pcch_hdr->nominal) * 1000; policy->min = policy->cpuinfo.min_freq = ioread32(&pcch_hdr->minimum_frequency) * 1000; - policy->cur = pcc_get_freq(cpu); - - if (!policy->cur) { - pr_debug("init: Unable to get current CPU frequency\n"); - result = -EINVAL; - goto out; - } pr_debug("init: policy->max is %d, policy->min is %d\n", policy->max, policy->min); -- cgit v1.2.3-70-g09d2 From cb8bd497a61adea2ccb937e3181408fb95c78b52 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:54 +0530 Subject: cpufreq: pmac: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/pmac32-cpufreq.c | 1 - drivers/cpufreq/pmac64-cpufreq.c | 1 - 2 files changed, 2 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/pmac32-cpufreq.c b/drivers/cpufreq/pmac32-cpufreq.c index 8715ab99d80..672b7f4a7de 100644 --- a/drivers/cpufreq/pmac32-cpufreq.c +++ b/drivers/cpufreq/pmac32-cpufreq.c @@ -396,7 +396,6 @@ static int pmac_cpufreq_cpu_init(struct cpufreq_policy *policy) return -ENODEV; policy->cpuinfo.transition_latency = transition_latency; - policy->cur = cur_freq; return cpufreq_table_validate_and_show(policy, pmac_cpu_freqs); } diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c index e853b852b34..79e40c91378 100644 --- a/drivers/cpufreq/pmac64-cpufreq.c +++ b/drivers/cpufreq/pmac64-cpufreq.c @@ -348,7 +348,6 @@ static unsigned int g5_cpufreq_get_speed(unsigned int cpu) static int g5_cpufreq_cpu_init(struct cpufreq_policy *policy) { policy->cpuinfo.transition_latency = transition_latency; - policy->cur = g5_cpu_freqs[g5_query_freq()].frequency; /* secondary CPUs are tied to the primary one by the * cpufreq core if in the secondary policy we tell it that * it actually must be one policy together with all others. */ -- cgit v1.2.3-70-g09d2 From eaf8120e8f9c4efc71475b1e08b8e2d3e421e6ca Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:55 +0530 Subject: cpufreq: powernow: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/powernow-k6.c | 1 - drivers/cpufreq/powernow-k7.c | 2 -- drivers/cpufreq/powernow-k8.c | 3 --- 3 files changed, 6 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/powernow-k6.c b/drivers/cpufreq/powernow-k6.c index ff05d284e48..eda17024a34 100644 --- a/drivers/cpufreq/powernow-k6.c +++ b/drivers/cpufreq/powernow-k6.c @@ -151,7 +151,6 @@ static int powernow_k6_cpu_init(struct cpufreq_policy *policy) /* cpuinfo and default policy values */ policy->cpuinfo.transition_latency = 200000; - policy->cur = busfreq * max_multiplier; return cpufreq_table_validate_and_show(policy, clock_ratio); } diff --git a/drivers/cpufreq/powernow-k7.c b/drivers/cpufreq/powernow-k7.c index 14cd98f5a09..44d345bad6f 100644 --- a/drivers/cpufreq/powernow-k7.c +++ b/drivers/cpufreq/powernow-k7.c @@ -673,8 +673,6 @@ static int powernow_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = cpufreq_scale(2000000UL, fsb, latency); - policy->cur = powernow_get(0); - return cpufreq_table_validate_and_show(policy, powernow_table); } diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c index 1e6f68af87a..298beb742eb 100644 --- a/drivers/cpufreq/powernow-k8.c +++ b/drivers/cpufreq/powernow-k8.c @@ -1141,9 +1141,6 @@ static int powernowk8_cpu_init(struct cpufreq_policy *pol) cpumask_copy(pol->cpus, cpu_core_mask(pol->cpu)); data->available_cores = pol->cpus; - pol->cur = find_khz_freq_from_fid(data->currfid); - pr_debug("policy current frequency %d kHz\n", pol->cur); - /* min/max the cpu is capable of */ if (cpufreq_table_validate_and_show(pol, data->powernow_table)) { printk(KERN_ERR FW_BUG PFX "invalid powernow_table\n"); -- cgit v1.2.3-70-g09d2 From 0bcc9d9a3e680ebf7717f1aa8caeee45048ebae3 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:56 +0530 Subject: cpufreq: ppc: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/ppc-corenet-cpufreq.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/ppc-corenet-cpufreq.c b/drivers/cpufreq/ppc-corenet-cpufreq.c index befd489314e..a0f562ca292 100644 --- a/drivers/cpufreq/ppc-corenet-cpufreq.c +++ b/drivers/cpufreq/ppc-corenet-cpufreq.c @@ -217,8 +217,6 @@ static int corenet_cpufreq_cpu_init(struct cpufreq_policy *policy) per_cpu(cpu_data, i) = data; policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; - policy->cur = corenet_cpufreq_get_speed(policy->cpu); - of_node_put(np); return 0; -- cgit v1.2.3-70-g09d2 From 200ea8e2c28c1cca4f3faf1e15da78539ecaf835 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:57 +0530 Subject: cpufreq: pxa: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Cc: Eric Miao Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/pxa2xx-cpufreq.c | 2 -- drivers/cpufreq/pxa3xx-cpufreq.c | 7 +++---- 2 files changed, 3 insertions(+), 6 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/pxa2xx-cpufreq.c b/drivers/cpufreq/pxa2xx-cpufreq.c index 82905fe0041..29aca574317 100644 --- a/drivers/cpufreq/pxa2xx-cpufreq.c +++ b/drivers/cpufreq/pxa2xx-cpufreq.c @@ -397,8 +397,6 @@ static int pxa_cpufreq_init(struct cpufreq_policy *policy) /* set default policy and cpuinfo */ policy->cpuinfo.transition_latency = 1000; /* FIXME: 1 ms, assumed */ - policy->cur = get_clk_frequency_khz(0); /* current freq */ - policy->min = policy->max = policy->cur; /* Generate pxa25x the run cpufreq_frequency_table struct */ for (i = 0; i < NUM_PXA25x_RUN_FREQS; i++) { diff --git a/drivers/cpufreq/pxa3xx-cpufreq.c b/drivers/cpufreq/pxa3xx-cpufreq.c index ae3ac08a7b2..47fbee49d6e 100644 --- a/drivers/cpufreq/pxa3xx-cpufreq.c +++ b/drivers/cpufreq/pxa3xx-cpufreq.c @@ -201,11 +201,10 @@ static int pxa3xx_cpufreq_init(struct cpufreq_policy *policy) int ret = -EINVAL; /* set default policy and cpuinfo */ - policy->cpuinfo.min_freq = 104000; - policy->cpuinfo.max_freq = (cpu_is_pxa320()) ? 806000 : 624000; + policy->min = policy->cpuinfo.min_freq = 104000; + policy->max = policy->cpuinfo.max_freq = + (cpu_is_pxa320()) ? 806000 : 624000; policy->cpuinfo.transition_latency = 1000; /* FIXME: 1 ms, assumed */ - policy->max = pxa3xx_get_clk_frequency_khz(0); - policy->cur = policy->min = policy->max; if (cpu_is_pxa300() || cpu_is_pxa310()) ret = setup_freqs_table(policy, pxa300_freqs, -- cgit v1.2.3-70-g09d2 From 0ecc402e0f1f8cc55000c75cb216615d0bee62a6 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:58 +0530 Subject: cpufreq: s3c: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Cc: Kukjin Kim Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/s3c2416-cpufreq.c | 2 -- drivers/cpufreq/s3c24xx-cpufreq.c | 5 ----- drivers/cpufreq/s3c64xx-cpufreq.c | 2 -- 3 files changed, 9 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/s3c2416-cpufreq.c b/drivers/cpufreq/s3c2416-cpufreq.c index 8c57f10b2ff..22c4c2d837b 100644 --- a/drivers/cpufreq/s3c2416-cpufreq.c +++ b/drivers/cpufreq/s3c2416-cpufreq.c @@ -476,8 +476,6 @@ static int __init s3c2416_cpufreq_driver_init(struct cpufreq_policy *policy) freq++; } - policy->cur = clk_get_rate(s3c_freq->armclk) / 1000; - /* Datasheet says PLL stabalisation time must be at least 300us, * so but add some fudge. (reference in LOCKCON0 register description) */ diff --git a/drivers/cpufreq/s3c24xx-cpufreq.c b/drivers/cpufreq/s3c24xx-cpufreq.c index 027dec1cf09..e0fbaefc69a 100644 --- a/drivers/cpufreq/s3c24xx-cpufreq.c +++ b/drivers/cpufreq/s3c24xx-cpufreq.c @@ -378,11 +378,6 @@ static int s3c_cpufreq_init(struct cpufreq_policy *policy) if (policy->cpu != 0) return -EINVAL; - policy->cur = s3c_cpufreq_get(0); - policy->min = policy->cpuinfo.min_freq = 0; - policy->max = policy->cpuinfo.max_freq = cpu_cur.info->max.fclk / 1000; - policy->governor = CPUFREQ_DEFAULT_GOVERNOR; - /* feed the latency information from the cpu driver */ policy->cpuinfo.transition_latency = cpu_cur.info->latency; diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c index 99fbc49af95..a66cfa3e54a 100644 --- a/drivers/cpufreq/s3c64xx-cpufreq.c +++ b/drivers/cpufreq/s3c64xx-cpufreq.c @@ -235,8 +235,6 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy) freq++; } - policy->cur = clk_get_rate(armclk) / 1000; - /* Datasheet says PLL stabalisation time (if we were to use * the PLLs, which we don't currently) is ~300us worst case, * but add some fudge. -- cgit v1.2.3-70-g09d2 From da9cbb9e284bde07ad4c0506aa4cb8ae6a6973f6 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:28:59 +0530 Subject: cpufreq: s5pv210: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Cc: Kukjin Kim Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/s5pv210-cpufreq.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/s5pv210-cpufreq.c b/drivers/cpufreq/s5pv210-cpufreq.c index 0eafc528f13..30d9bb7a393 100644 --- a/drivers/cpufreq/s5pv210-cpufreq.c +++ b/drivers/cpufreq/s5pv210-cpufreq.c @@ -543,8 +543,6 @@ static int __init s5pv210_cpu_init(struct cpufreq_policy *policy) s5pv210_dram_conf[1].refresh = (__raw_readl(S5P_VA_DMC1 + 0x30) * 1000); s5pv210_dram_conf[1].freq = clk_get_rate(dmc1_clk); - policy->cur = policy->min = policy->max = s5pv210_getspeed(0); - policy->cpuinfo.transition_latency = 40000; return cpufreq_table_validate_and_show(policy, s5pv210_freq_table); -- cgit v1.2.3-70-g09d2 From b256888fd0c3d5cd109798a0d32d47f665339695 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:00 +0530 Subject: cpufreq: sa11x0: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Cc: Russell King Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/sa1100-cpufreq.c | 1 - drivers/cpufreq/sa1110-cpufreq.c | 1 - 2 files changed, 2 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/sa1100-cpufreq.c b/drivers/cpufreq/sa1100-cpufreq.c index 80a4fde0021..a1d1bb72bac 100644 --- a/drivers/cpufreq/sa1100-cpufreq.c +++ b/drivers/cpufreq/sa1100-cpufreq.c @@ -220,7 +220,6 @@ static int __init sa1100_cpu_init(struct cpufreq_policy *policy) { if (policy->cpu != 0) return -EINVAL; - policy->cur = sa11x0_getspeed(0); policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; return cpufreq_table_validate_and_show(policy, sa11x0_freq_table); diff --git a/drivers/cpufreq/sa1110-cpufreq.c b/drivers/cpufreq/sa1110-cpufreq.c index a38d904d168..9da940e66b7 100644 --- a/drivers/cpufreq/sa1110-cpufreq.c +++ b/drivers/cpufreq/sa1110-cpufreq.c @@ -334,7 +334,6 @@ static int __init sa1110_cpu_init(struct cpufreq_policy *policy) { if (policy->cpu != 0) return -EINVAL; - policy->cur = sa11x0_getspeed(0); policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; return cpufreq_table_validate_and_show(policy, sa11x0_freq_table); -- cgit v1.2.3-70-g09d2 From df38a23b7e51e9d8940714a39cf122966d55d882 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:01 +0530 Subject: cpufreq: sc520_freq: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/sc520_freq.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/sc520_freq.c b/drivers/cpufreq/sc520_freq.c index 85562251f99..9047ab1ca01 100644 --- a/drivers/cpufreq/sc520_freq.c +++ b/drivers/cpufreq/sc520_freq.c @@ -109,7 +109,6 @@ static int sc520_freq_cpu_init(struct cpufreq_policy *policy) /* cpuinfo and default policy values */ policy->cpuinfo.transition_latency = 1000000; /* 1ms */ - policy->cur = sc520_freq_get_cpu_frequency(0); return cpufreq_table_validate_and_show(policy, sc520_freq_table); } -- cgit v1.2.3-70-g09d2 From 0ff12b6f487cbf01c47c551f8614f06c0dfd6a7a Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:02 +0530 Subject: cpufreq: sh: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Cc: Paul Mundt Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/sh-cpufreq.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/sh-cpufreq.c b/drivers/cpufreq/sh-cpufreq.c index c681b86932c..387af12503a 100644 --- a/drivers/cpufreq/sh-cpufreq.c +++ b/drivers/cpufreq/sh-cpufreq.c @@ -111,8 +111,6 @@ static int sh_cpufreq_cpu_init(struct cpufreq_policy *policy) return PTR_ERR(cpuclk); } - policy->cur = sh_cpufreq_get(cpu); - freq_table = cpuclk->nr_freqs ? cpuclk->freq_table : NULL; if (freq_table) { int result; -- cgit v1.2.3-70-g09d2 From 1812136ec9adca227b185305b538a8a2065038d2 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:03 +0530 Subject: cpufreq: spear: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/spear-cpufreq.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/spear-cpufreq.c b/drivers/cpufreq/spear-cpufreq.c index e9657e33b65..aacdb615e4e 100644 --- a/drivers/cpufreq/spear-cpufreq.c +++ b/drivers/cpufreq/spear-cpufreq.c @@ -180,8 +180,6 @@ static int spear_cpufreq_init(struct cpufreq_policy *policy) } policy->cpuinfo.transition_latency = spear_cpufreq.transition_latency; - policy->cur = spear_cpufreq_get(0); - cpumask_setall(policy->cpus); return 0; -- cgit v1.2.3-70-g09d2 From 4b15768325afe81057e3e71ae8b896d5ea657c30 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:04 +0530 Subject: cpufreq: speedstep: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Cc: David S. Miller Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/speedstep-centrino.c | 5 ----- drivers/cpufreq/speedstep-ich.c | 15 +-------------- drivers/cpufreq/speedstep-smi.c | 13 ------------- 3 files changed, 1 insertion(+), 32 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c index c7c14ae1935..6b882c7b321 100644 --- a/drivers/cpufreq/speedstep-centrino.c +++ b/drivers/cpufreq/speedstep-centrino.c @@ -343,7 +343,6 @@ static unsigned int get_cur_freq(unsigned int cpu) static int centrino_cpu_init(struct cpufreq_policy *policy) { struct cpuinfo_x86 *cpu = &cpu_data(policy->cpu); - unsigned freq; unsigned l, h; int i; @@ -394,12 +393,8 @@ static int centrino_cpu_init(struct cpufreq_policy *policy) } } - freq = get_cur_freq(policy->cpu); policy->cpuinfo.transition_latency = 10000; /* 10uS transition latency */ - policy->cur = freq; - - pr_debug("centrino_cpu_init: cur=%dkHz\n", policy->cur); return cpufreq_table_validate_and_show(policy, per_cpu(centrino_model, policy->cpu)->op_points); diff --git a/drivers/cpufreq/speedstep-ich.c b/drivers/cpufreq/speedstep-ich.c index 929a4f0469a..1a8b01bd0fe 100644 --- a/drivers/cpufreq/speedstep-ich.c +++ b/drivers/cpufreq/speedstep-ich.c @@ -308,7 +308,7 @@ static void get_freqs_on_cpu(void *_get_freqs) static int speedstep_cpu_init(struct cpufreq_policy *policy) { - unsigned int policy_cpu, speed; + unsigned int policy_cpu; struct get_freqs gf; /* only run on CPU to be set, or on its sibling */ @@ -323,19 +323,6 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy) if (gf.ret) return gf.ret; - /* get current speed setting */ - speed = speedstep_get(policy_cpu); - if (!speed) - return -EIO; - - pr_debug("currently at %s speed setting - %i MHz\n", - (speed == speedstep_freqs[SPEEDSTEP_LOW].frequency) - ? "low" : "high", - (speed / 1000)); - - /* cpuinfo and default policy values */ - policy->cur = speed; - return cpufreq_table_validate_and_show(policy, speedstep_freqs); } diff --git a/drivers/cpufreq/speedstep-smi.c b/drivers/cpufreq/speedstep-smi.c index b3dfba0daab..a02b649c964 100644 --- a/drivers/cpufreq/speedstep-smi.c +++ b/drivers/cpufreq/speedstep-smi.c @@ -267,7 +267,6 @@ static int speedstep_target(struct cpufreq_policy *policy, static int speedstep_cpu_init(struct cpufreq_policy *policy) { int result; - unsigned int speed, state; unsigned int *low, *high; /* capability check */ @@ -303,19 +302,7 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy) pr_debug("workaround worked.\n"); } - /* get current speed setting */ - state = speedstep_get_state(); - speed = speedstep_freqs[state].frequency; - - pr_debug("currently at %s speed setting - %i MHz\n", - (speed == speedstep_freqs[SPEEDSTEP_LOW].frequency) - ? "low" : "high", - (speed / 1000)); - - /* cpuinfo and default policy values */ policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; - policy->cur = speed; - return cpufreq_table_validate_and_show(policy, speedstep_freqs); } -- cgit v1.2.3-70-g09d2 From 21c895ce7172b21fed5f10e17b4b276962fa7f32 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:05 +0530 Subject: cpufreq: tegra: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Cc: Stephen Warren Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/tegra-cpufreq.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c index c36a8e7036a..9c32b23322b 100644 --- a/drivers/cpufreq/tegra-cpufreq.c +++ b/drivers/cpufreq/tegra-cpufreq.c @@ -211,8 +211,7 @@ static int tegra_cpu_init(struct cpufreq_policy *policy) clk_prepare_enable(cpu_clk); cpufreq_table_validate_and_show(policy, freq_table); - policy->cur = tegra_getspeed(policy->cpu); - target_cpu_speed[policy->cpu] = policy->cur; + target_cpu_speed[policy->cpu] = tegra_getspeed(policy->cpu); /* FIXME: what's the actual transition time? */ policy->cpuinfo.transition_latency = 300 * 1000; -- cgit v1.2.3-70-g09d2 From 9909aa1e3b69eb05201bdbd2b9bde00c50c1723a Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:06 +0530 Subject: cpufreq: unicore2: don't initialize part of policy set by core Many common initializations of struct policy are moved to core now and hence this driver doesn't need to do it. This patch removes such code. Most recent of those changes is to call ->get() in the core after calling ->init(). Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/unicore2-cpufreq.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/unicore2-cpufreq.c b/drivers/cpufreq/unicore2-cpufreq.c index 14e6d310635..653ae2955b5 100644 --- a/drivers/cpufreq/unicore2-cpufreq.c +++ b/drivers/cpufreq/unicore2-cpufreq.c @@ -66,7 +66,6 @@ static int __init ucv2_cpu_init(struct cpufreq_policy *policy) { if (policy->cpu != 0) return -EINVAL; - policy->cur = ucv2_getspeed(0); policy->min = policy->cpuinfo.min_freq = 250000; policy->max = policy->cpuinfo.max_freq = 1000000; policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; -- cgit v1.2.3-70-g09d2 From 70e9e778337973d5bf57004092b360bd3f3c412f Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:07 +0530 Subject: cpufreq: create cpufreq_generic_init() routine Many CPUFreq drivers for SMP system (where all cores share same clock lines), do similar stuff in their ->init() part. This patch creates a generic routine in cpufreq core which can be used by these so that we can remove some redundant code. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/Kconfig | 1 + drivers/cpufreq/cpufreq.c | 31 +++++++++++++++++++++++++++++++ include/linux/cpufreq.h | 3 +++ 3 files changed, 35 insertions(+) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig index 534fcb82515..2d06754f4a0 100644 --- a/drivers/cpufreq/Kconfig +++ b/drivers/cpufreq/Kconfig @@ -2,6 +2,7 @@ menu "CPU Frequency scaling" config CPU_FREQ bool "CPU Frequency scaling" + select CPU_FREQ_TABLE help CPU Frequency scaling allows you to change the clock speed of CPUs on the fly. This is a nice method to save power, because diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index f033adf06ea..985f325adc4 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -181,6 +181,37 @@ u64 get_cpu_idle_time(unsigned int cpu, u64 *wall, int io_busy) } EXPORT_SYMBOL_GPL(get_cpu_idle_time); +/* + * This is a generic cpufreq init() routine which can be used by cpufreq + * drivers of SMP systems. It will do following: + * - validate & show freq table passed + * - set policies transition latency + * - policy->cpus with all possible CPUs + */ +int cpufreq_generic_init(struct cpufreq_policy *policy, + struct cpufreq_frequency_table *table, + unsigned int transition_latency) +{ + int ret; + + ret = cpufreq_table_validate_and_show(policy, table); + if (ret) { + pr_err("%s: invalid frequency table: %d\n", __func__, ret); + return ret; + } + + policy->cpuinfo.transition_latency = transition_latency; + + /* + * The driver only supports the SMP configuartion where all processors + * share the clock and voltage and clock. + */ + cpumask_setall(policy->cpus); + + return 0; +} +EXPORT_SYMBOL_GPL(cpufreq_generic_init); + struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu) { struct cpufreq_policy *policy = NULL; diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 36ccd0bf130..0aba2a6cada 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -424,6 +424,9 @@ void cpufreq_frequency_table_put_attr(unsigned int cpu); int cpufreq_table_validate_and_show(struct cpufreq_policy *policy, struct cpufreq_frequency_table *table); +int cpufreq_generic_init(struct cpufreq_policy *policy, + struct cpufreq_frequency_table *table, + unsigned int transition_latency); static inline int cpufreq_generic_exit(struct cpufreq_policy *policy) { cpufreq_frequency_table_put_attr(policy->cpu); -- cgit v1.2.3-70-g09d2 From 3bc28ab6da039f8020bbcea8e832b63a900bdb66 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:08 +0530 Subject: cpufreq: remove CONFIG_CPU_FREQ_TABLE CONFIG_CPU_FREQ_TABLE will be always enabled when cpufreq framework is used, as cpufreq core depends on it. So, we don't need this CONFIG option anymore as it is not configurable. Remove CONFIG_CPU_FREQ_TABLE and update its users. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-davinci/Kconfig | 1 - arch/arm/mach-pxa/Kconfig | 3 --- arch/arm/mach-ux500/Kconfig | 1 - arch/blackfin/Kconfig | 1 - arch/cris/Kconfig | 2 -- drivers/cpufreq/Kconfig | 12 ------------ drivers/cpufreq/Kconfig.arm | 11 ----------- drivers/cpufreq/Kconfig.powerpc | 6 ------ drivers/cpufreq/Kconfig.x86 | 13 ------------- drivers/cpufreq/Makefile | 5 +---- drivers/cpufreq/cpufreq.c | 2 -- drivers/thermal/Kconfig | 1 - 12 files changed, 1 insertion(+), 57 deletions(-) (limited to 'drivers/cpufreq') diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig index e026b19b23e..a075b3e0c5c 100644 --- a/arch/arm/mach-davinci/Kconfig +++ b/arch/arm/mach-davinci/Kconfig @@ -40,7 +40,6 @@ config ARCH_DAVINCI_DA850 bool "DA850/OMAP-L138/AM18x based system" select ARCH_DAVINCI_DA8XX select ARCH_HAS_CPUFREQ - select CPU_FREQ_TABLE select CP_INTC config ARCH_DAVINCI_DA8XX diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig index a8427115ee0..96100dbf5a2 100644 --- a/arch/arm/mach-pxa/Kconfig +++ b/arch/arm/mach-pxa/Kconfig @@ -615,14 +615,12 @@ endmenu config PXA25x bool select CPU_XSCALE - select CPU_FREQ_TABLE if CPU_FREQ help Select code specific to PXA21x/25x/26x variants config PXA27x bool select CPU_XSCALE - select CPU_FREQ_TABLE if CPU_FREQ help Select code specific to PXA27x variants @@ -635,7 +633,6 @@ config CPU_PXA26x config PXA3xx bool select CPU_XSC3 - select CPU_FREQ_TABLE if CPU_FREQ help Select code specific to PXA3xx variants diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig index 99a28d62829..7a3fc1af694 100644 --- a/arch/arm/mach-ux500/Kconfig +++ b/arch/arm/mach-ux500/Kconfig @@ -34,7 +34,6 @@ config UX500_SOC_COMMON config UX500_SOC_DB8500 bool - select CPU_FREQ_TABLE if CPU_FREQ select MFD_DB8500_PRCMU select PINCTRL_DB8500 select PINCTRL_DB8540 diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index f78c9a2c7e2..eb382aedd9a 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -1429,7 +1429,6 @@ source "drivers/cpufreq/Kconfig" config BFIN_CPU_FREQ bool depends on CPU_FREQ - select CPU_FREQ_TABLE default y config CPU_VOLTAGE diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig index 02380bed189..9c957c81c68 100644 --- a/arch/cris/Kconfig +++ b/arch/cris/Kconfig @@ -130,13 +130,11 @@ config SVINTO_SIM config ETRAXFS bool "ETRAX-FS-V32" - select CPU_FREQ_TABLE if CPU_FREQ help Support CRIS V32. config CRIS_MACH_ARTPEC3 bool "ARTPEC-3" - select CPU_FREQ_TABLE if CPU_FREQ help Support Axis ARTPEC-3. diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig index 2d06754f4a0..38093e27237 100644 --- a/drivers/cpufreq/Kconfig +++ b/drivers/cpufreq/Kconfig @@ -2,7 +2,6 @@ menu "CPU Frequency scaling" config CPU_FREQ bool "CPU Frequency scaling" - select CPU_FREQ_TABLE help CPU Frequency scaling allows you to change the clock speed of CPUs on the fly. This is a nice method to save power, because @@ -18,15 +17,11 @@ config CPU_FREQ if CPU_FREQ -config CPU_FREQ_TABLE - tristate - config CPU_FREQ_GOV_COMMON bool config CPU_FREQ_STAT tristate "CPU frequency translation statistics" - select CPU_FREQ_TABLE default y help This driver exports CPU frequency statistics information through sysfs @@ -144,7 +139,6 @@ config CPU_FREQ_GOV_USERSPACE config CPU_FREQ_GOV_ONDEMAND tristate "'ondemand' cpufreq policy governor" - select CPU_FREQ_TABLE select CPU_FREQ_GOV_COMMON help 'ondemand' - This driver adds a dynamic cpufreq policy governor. @@ -188,7 +182,6 @@ config CPU_FREQ_GOV_CONSERVATIVE config GENERIC_CPUFREQ_CPU0 tristate "Generic CPU0 cpufreq driver" depends on HAVE_CLK && REGULATOR && PM_OPP && OF - select CPU_FREQ_TABLE help This adds a generic cpufreq driver for CPU0 frequency management. It supports both uniprocessor (UP) and symmetric multiprocessor (SMP) @@ -224,7 +217,6 @@ depends on IA64 config IA64_ACPI_CPUFREQ tristate "ACPI Processor P-States driver" - select CPU_FREQ_TABLE depends on ACPI_PROCESSOR help This driver adds a CPUFreq driver which utilizes the ACPI @@ -241,7 +233,6 @@ depends on MIPS config LOONGSON2_CPUFREQ tristate "Loongson2 CPUFreq Driver" - select CPU_FREQ_TABLE help This option adds a CPUFreq driver for loongson processors which support software configurable cpu frequency. @@ -263,7 +254,6 @@ menu "SPARC CPU frequency scaling drivers" depends on SPARC64 config SPARC_US3_CPUFREQ tristate "UltraSPARC-III CPU Frequency driver" - select CPU_FREQ_TABLE help This adds the CPUFreq driver for UltraSPARC-III processors. @@ -273,7 +263,6 @@ config SPARC_US3_CPUFREQ config SPARC_US2E_CPUFREQ tristate "UltraSPARC-IIe CPU Frequency driver" - select CPU_FREQ_TABLE help This adds the CPUFreq driver for UltraSPARC-IIe processors. @@ -286,7 +275,6 @@ menu "SH CPU Frequency scaling" depends on SUPERH config SH_CPU_FREQ tristate "SuperH CPU Frequency driver" - select CPU_FREQ_TABLE help This adds the cpufreq driver for SuperH. Any CPU that supports clock rate rounding through the clock framework can use this diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm index 0fa204b244b..701ec95ce95 100644 --- a/drivers/cpufreq/Kconfig.arm +++ b/drivers/cpufreq/Kconfig.arm @@ -5,7 +5,6 @@ config ARM_BIG_LITTLE_CPUFREQ tristate "Generic ARM big LITTLE CPUfreq driver" depends on ARM_CPU_TOPOLOGY && PM_OPP && HAVE_CLK - select CPU_FREQ_TABLE help This enables the Generic CPUfreq driver for ARM big.LITTLE platforms. @@ -18,7 +17,6 @@ config ARM_DT_BL_CPUFREQ config ARM_EXYNOS_CPUFREQ bool - select CPU_FREQ_TABLE config ARM_EXYNOS4210_CPUFREQ bool "SAMSUNG EXYNOS4210" @@ -58,7 +56,6 @@ config ARM_EXYNOS5440_CPUFREQ depends on SOC_EXYNOS5440 depends on HAVE_CLK && PM_OPP && OF default y - select CPU_FREQ_TABLE help This adds the CPUFreq driver for Samsung EXYNOS5440 SoC. The nature of exynos5440 clock controller is @@ -85,7 +82,6 @@ config ARM_IMX6Q_CPUFREQ tristate "Freescale i.MX6Q cpufreq support" depends on SOC_IMX6Q depends on REGULATOR_ANATOP - select CPU_FREQ_TABLE help This adds cpufreq driver support for Freescale i.MX6Q SOC. @@ -101,7 +97,6 @@ config ARM_INTEGRATOR config ARM_KIRKWOOD_CPUFREQ def_bool ARCH_KIRKWOOD && OF - select CPU_FREQ_TABLE help This adds the CPUFreq driver for Marvell Kirkwood SoCs. @@ -110,7 +105,6 @@ config ARM_OMAP2PLUS_CPUFREQ bool "TI OMAP2+" depends on ARCH_OMAP2PLUS default ARCH_OMAP2PLUS - select CPU_FREQ_TABLE config ARM_S3C_CPUFREQ bool @@ -165,7 +159,6 @@ config ARM_S3C2412_CPUFREQ config ARM_S3C2416_CPUFREQ bool "S3C2416 CPU Frequency scaling support" depends on CPU_S3C2416 - select CPU_FREQ_TABLE help This adds the CPUFreq driver for the Samsung S3C2416 and S3C2450 SoC. The S3C2416 supports changing the rate of the @@ -196,7 +189,6 @@ config ARM_S3C2440_CPUFREQ config ARM_S3C64XX_CPUFREQ bool "Samsung S3C64XX" depends on CPU_S3C6410 - select CPU_FREQ_TABLE default y help This adds the CPUFreq driver for Samsung S3C6410 SoC. @@ -206,7 +198,6 @@ config ARM_S3C64XX_CPUFREQ config ARM_S5PV210_CPUFREQ bool "Samsung S5PV210 and S5PC110" depends on CPU_S5PV210 - select CPU_FREQ_TABLE default y help This adds the CPUFreq driver for Samsung S5PV210 and @@ -223,7 +214,6 @@ config ARM_SA1110_CPUFREQ config ARM_SPEAR_CPUFREQ bool "SPEAr CPUFreq support" depends on PLAT_SPEAR - select CPU_FREQ_TABLE default y help This adds the CPUFreq driver support for SPEAr SOCs. @@ -231,7 +221,6 @@ config ARM_SPEAR_CPUFREQ config ARM_TEGRA_CPUFREQ bool "TEGRA CPUFreq support" depends on ARCH_TEGRA - select CPU_FREQ_TABLE default y help This adds the CPUFreq driver support for TEGRA SOCs. diff --git a/drivers/cpufreq/Kconfig.powerpc b/drivers/cpufreq/Kconfig.powerpc index 25ca9db62e0..ca0021a96e1 100644 --- a/drivers/cpufreq/Kconfig.powerpc +++ b/drivers/cpufreq/Kconfig.powerpc @@ -1,7 +1,6 @@ config CPU_FREQ_CBE tristate "CBE frequency scaling" depends on CBE_RAS && PPC_CELL - select CPU_FREQ_TABLE default m help This adds the cpufreq driver for Cell BE processors. @@ -20,7 +19,6 @@ config CPU_FREQ_CBE_PMI config CPU_FREQ_MAPLE bool "Support for Maple 970FX Evaluation Board" depends on PPC_MAPLE - select CPU_FREQ_TABLE help This adds support for frequency switching on Maple 970FX Evaluation Board and compatible boards (IBM JS2x blades). @@ -28,7 +26,6 @@ config CPU_FREQ_MAPLE config PPC_CORENET_CPUFREQ tristate "CPU frequency scaling driver for Freescale E500MC SoCs" depends on PPC_E500MC && OF && COMMON_CLK - select CPU_FREQ_TABLE select CLK_PPC_CORENET help This adds the CPUFreq driver support for Freescale e500mc, @@ -38,7 +35,6 @@ config PPC_CORENET_CPUFREQ config CPU_FREQ_PMAC bool "Support for Apple PowerBooks" depends on ADB_PMU && PPC32 - select CPU_FREQ_TABLE help This adds support for frequency switching on Apple PowerBooks, this currently includes some models of iBook & Titanium @@ -47,7 +43,6 @@ config CPU_FREQ_PMAC config CPU_FREQ_PMAC64 bool "Support for some Apple G5s" depends on PPC_PMAC && PPC64 - select CPU_FREQ_TABLE help This adds support for frequency switching on Apple iMac G5, and some of the more recent desktop G5 machines as well. @@ -55,7 +50,6 @@ config CPU_FREQ_PMAC64 config PPC_PASEMI_CPUFREQ bool "Support for PA Semi PWRficient" depends on PPC_PASEMI - select CPU_FREQ_TABLE default y help This adds the support for frequency switching on PA Semi diff --git a/drivers/cpufreq/Kconfig.x86 b/drivers/cpufreq/Kconfig.x86 index e2b6eabef22..6897ad85b04 100644 --- a/drivers/cpufreq/Kconfig.x86 +++ b/drivers/cpufreq/Kconfig.x86 @@ -31,7 +31,6 @@ config X86_PCC_CPUFREQ config X86_ACPI_CPUFREQ tristate "ACPI Processor P-States driver" - select CPU_FREQ_TABLE depends on ACPI_PROCESSOR help This driver adds a CPUFreq driver which utilizes the ACPI @@ -60,7 +59,6 @@ config X86_ACPI_CPUFREQ_CPB config ELAN_CPUFREQ tristate "AMD Elan SC400 and SC410" - select CPU_FREQ_TABLE depends on MELAN ---help--- This adds the CPUFreq driver for AMD Elan SC400 and SC410 @@ -76,7 +74,6 @@ config ELAN_CPUFREQ config SC520_CPUFREQ tristate "AMD Elan SC520" - select CPU_FREQ_TABLE depends on MELAN ---help--- This adds the CPUFreq driver for AMD Elan SC520 processor. @@ -88,7 +85,6 @@ config SC520_CPUFREQ config X86_POWERNOW_K6 tristate "AMD Mobile K6-2/K6-3 PowerNow!" - select CPU_FREQ_TABLE depends on X86_32 help This adds the CPUFreq driver for mobile AMD K6-2+ and mobile @@ -100,7 +96,6 @@ config X86_POWERNOW_K6 config X86_POWERNOW_K7 tristate "AMD Mobile Athlon/Duron PowerNow!" - select CPU_FREQ_TABLE depends on X86_32 help This adds the CPUFreq driver for mobile AMD K7 mobile processors. @@ -118,7 +113,6 @@ config X86_POWERNOW_K7_ACPI config X86_POWERNOW_K8 tristate "AMD Opteron/Athlon64 PowerNow!" - select CPU_FREQ_TABLE depends on ACPI && ACPI_PROCESSOR && X86_ACPI_CPUFREQ help This adds the CPUFreq driver for K8/early Opteron/Athlon64 processors. @@ -132,7 +126,6 @@ config X86_POWERNOW_K8 config X86_AMD_FREQ_SENSITIVITY tristate "AMD frequency sensitivity feedback powersave bias" depends on CPU_FREQ_GOV_ONDEMAND && X86_ACPI_CPUFREQ && CPU_SUP_AMD - select CPU_FREQ_TABLE help This adds AMD-specific powersave bias function to the ondemand governor, which allows it to make more power-conscious frequency @@ -160,7 +153,6 @@ config X86_GX_SUSPMOD config X86_SPEEDSTEP_CENTRINO tristate "Intel Enhanced SpeedStep (deprecated)" - select CPU_FREQ_TABLE select X86_SPEEDSTEP_CENTRINO_TABLE if X86_32 depends on X86_32 || (X86_64 && ACPI_PROCESSOR) help @@ -190,7 +182,6 @@ config X86_SPEEDSTEP_CENTRINO_TABLE config X86_SPEEDSTEP_ICH tristate "Intel Speedstep on ICH-M chipsets (ioport interface)" - select CPU_FREQ_TABLE depends on X86_32 help This adds the CPUFreq driver for certain mobile Intel Pentium III @@ -204,7 +195,6 @@ config X86_SPEEDSTEP_ICH config X86_SPEEDSTEP_SMI tristate "Intel SpeedStep on 440BX/ZX/MX chipsets (SMI interface)" - select CPU_FREQ_TABLE depends on X86_32 help This adds the CPUFreq driver for certain mobile Intel Pentium III @@ -217,7 +207,6 @@ config X86_SPEEDSTEP_SMI config X86_P4_CLOCKMOD tristate "Intel Pentium 4 clock modulation" - select CPU_FREQ_TABLE help This adds the CPUFreq driver for Intel Pentium 4 / XEON processors. When enabled it will lower CPU temperature by skipping @@ -259,7 +248,6 @@ config X86_LONGRUN config X86_LONGHAUL tristate "VIA Cyrix III Longhaul" - select CPU_FREQ_TABLE depends on X86_32 && ACPI_PROCESSOR help This adds the CPUFreq driver for VIA Samuel/CyrixIII, @@ -272,7 +260,6 @@ config X86_LONGHAUL config X86_E_POWERSAVER tristate "VIA C7 Enhanced PowerSaver (DANGEROUS)" - select CPU_FREQ_TABLE depends on X86_32 && ACPI_PROCESSOR help This adds the CPUFreq driver for VIA C7 processors. However, this driver diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile index ad5866c2ada..b7948bbbbf1 100644 --- a/drivers/cpufreq/Makefile +++ b/drivers/cpufreq/Makefile @@ -1,5 +1,5 @@ # CPUfreq core -obj-$(CONFIG_CPU_FREQ) += cpufreq.o +obj-$(CONFIG_CPU_FREQ) += cpufreq.o freq_table.o # CPUfreq stats obj-$(CONFIG_CPU_FREQ_STAT) += cpufreq_stats.o @@ -11,9 +11,6 @@ obj-$(CONFIG_CPU_FREQ_GOV_ONDEMAND) += cpufreq_ondemand.o obj-$(CONFIG_CPU_FREQ_GOV_CONSERVATIVE) += cpufreq_conservative.o obj-$(CONFIG_CPU_FREQ_GOV_COMMON) += cpufreq_governor.o -# CPUfreq cross-arch helpers -obj-$(CONFIG_CPU_FREQ_TABLE) += freq_table.o - obj-$(CONFIG_GENERIC_CPUFREQ_CPU0) += cpufreq-cpu0.o ################################################################################## diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 985f325adc4..f0897c75468 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -986,9 +986,7 @@ static void update_policy_cpu(struct cpufreq_policy *policy, unsigned int cpu) up_write(&per_cpu(cpu_policy_rwsem, policy->last_cpu)); -#ifdef CONFIG_CPU_FREQ_TABLE cpufreq_frequency_table_update_policy_cpu(policy); -#endif blocking_notifier_call_chain(&cpufreq_policy_notifier_list, CPUFREQ_UPDATE_POLICY_CPU, policy); } diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig index dbfc390330a..5ef59676506 100644 --- a/drivers/thermal/Kconfig +++ b/drivers/thermal/Kconfig @@ -78,7 +78,6 @@ config THERMAL_GOV_USER_SPACE config CPU_THERMAL bool "generic cpu cooling support" depends on CPU_FREQ - select CPU_FREQ_TABLE help This implements the generic cpu cooling mechanism through frequency reduction. An ACPI version of this already exists -- cgit v1.2.3-70-g09d2 From 78b3d1093626f8536a089b0490127b47131bd327 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:09 +0530 Subject: cpufreq: cpufreq-cpu0: use cpufreq_generic_init() Use generic cpufreq_generic_init() routine instead of replicating the same code here. Cc: Shawn Guo Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq-cpu0.c | 19 +------------------ 1 file changed, 1 insertion(+), 18 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index 3c09a265903..582888db605 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -122,24 +122,7 @@ post_notify: static int cpu0_cpufreq_init(struct cpufreq_policy *policy) { - int ret; - - ret = cpufreq_table_validate_and_show(policy, freq_table); - if (ret) { - pr_err("invalid frequency table: %d\n", ret); - return ret; - } - - policy->cpuinfo.transition_latency = transition_latency; - - /* - * The driver only supports the SMP configuartion where all processors - * share the clock and voltage and clock. Use cpufreq affected_cpus - * interface to have all CPUs scaled together. - */ - cpumask_setall(policy->cpus); - - return 0; + return cpufreq_generic_init(policy, freq_table, transition_latency); } static struct cpufreq_driver cpu0_cpufreq_driver = { -- cgit v1.2.3-70-g09d2 From 1870e11193925c87f9b3a647ef26531277530136 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:10 +0530 Subject: cpufreq: cris: use cpufreq_generic_init() Use generic cpufreq_generic_init() routine instead of replicating the same code here. Cc: Mikael Starvik Signed-off-by: Viresh Kumar Acked-by: Jesper Nilsson Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cris-artpec3-cpufreq.c | 6 +----- drivers/cpufreq/cris-etraxfs-cpufreq.c | 5 +---- 2 files changed, 2 insertions(+), 9 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cris-artpec3-cpufreq.c b/drivers/cpufreq/cris-artpec3-cpufreq.c index 4d88e4fa2ad..05fdc7e4025 100644 --- a/drivers/cpufreq/cris-artpec3-cpufreq.c +++ b/drivers/cpufreq/cris-artpec3-cpufreq.c @@ -71,13 +71,9 @@ static int cris_freq_target(struct cpufreq_policy *policy, static int cris_freq_cpu_init(struct cpufreq_policy *policy) { - /* cpuinfo and default policy values */ - policy->cpuinfo.transition_latency = 1000000; /* 1ms */ - - return cpufreq_table_validate_and_show(policy, cris_freq_table); + return cpufreq_generic_init(policy, cris_freq_table, 1000000); } - static struct cpufreq_driver cris_freq_driver = { .get = cris_freq_get_cpu_frequency, .verify = cpufreq_generic_frequency_table_verify, diff --git a/drivers/cpufreq/cris-etraxfs-cpufreq.c b/drivers/cpufreq/cris-etraxfs-cpufreq.c index f7d2d49f7c0..fac2b26932d 100644 --- a/drivers/cpufreq/cris-etraxfs-cpufreq.c +++ b/drivers/cpufreq/cris-etraxfs-cpufreq.c @@ -70,10 +70,7 @@ static int cris_freq_target(struct cpufreq_policy *policy, static int cris_freq_cpu_init(struct cpufreq_policy *policy) { - /* cpuinfo and default policy values */ - policy->cpuinfo.transition_latency = 1000000; /* 1ms */ - - return cpufreq_table_validate_and_show(policy, cris_freq_table); + return cpufreq_generic_init(policy, cris_freq_table, 1000000); } static struct cpufreq_driver cris_freq_driver = { -- cgit v1.2.3-70-g09d2 From af8c4cfabea88b441282dff26ef08d52a90d653c Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:11 +0530 Subject: cpufreq: davinci: use cpufreq_generic_init() Use generic cpufreq_generic_init() routine instead of replicating the same code here. Cc: Sekhar Nori Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/davinci-cpufreq.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/davinci-cpufreq.c b/drivers/cpufreq/davinci-cpufreq.c index 55cf09425db..972583baf9e 100644 --- a/drivers/cpufreq/davinci-cpufreq.c +++ b/drivers/cpufreq/davinci-cpufreq.c @@ -136,21 +136,13 @@ static int davinci_cpu_init(struct cpufreq_policy *policy) return result; } - result = cpufreq_table_validate_and_show(policy, freq_table); - if (result) { - pr_err("%s: cpufreq_table_validate_and_show() failed", - __func__); - return result; - } - /* * Time measurement across the target() function yields ~1500-1800us * time taken with no drivers on notification list. * Setting the latency to 2000 us to accommodate addition of drivers * to pre/post change notification list. */ - policy->cpuinfo.transition_latency = 2000 * 1000; - return 0; + return cpufreq_generic_init(policy, freq_table, 2000 * 1000); } static struct cpufreq_driver davinci_driver = { -- cgit v1.2.3-70-g09d2 From 2b3dc761cf2cfaf773ebec5c169494c4a670a419 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:12 +0530 Subject: cpufreq: dbx500: use cpufreq_generic_init() Use generic cpufreq_generic_init() routine instead of replicating the same code here. Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/dbx500-cpufreq.c | 21 +-------------------- 1 file changed, 1 insertion(+), 20 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/dbx500-cpufreq.c b/drivers/cpufreq/dbx500-cpufreq.c index ae1aa60b138..a60f7693c18 100644 --- a/drivers/cpufreq/dbx500-cpufreq.c +++ b/drivers/cpufreq/dbx500-cpufreq.c @@ -74,26 +74,7 @@ static unsigned int dbx500_cpufreq_getspeed(unsigned int cpu) static int dbx500_cpufreq_init(struct cpufreq_policy *policy) { - int res; - - /* get policy fields based on the table */ - res = cpufreq_table_validate_and_show(policy, freq_table); - if (res) { - pr_err("dbx500-cpufreq: Failed to read policy table\n"); - return res; - } - - /* - * FIXME : Need to take time measurement across the target() - * function with no/some/all drivers in the notification - * list. - */ - policy->cpuinfo.transition_latency = 20 * 1000; /* in ns */ - - /* policy sharing between dual CPUs */ - cpumask_setall(policy->cpus); - - return 0; + return cpufreq_generic_init(policy, freq_table, 20 * 1000); } static struct cpufreq_driver dbx500_cpufreq_driver = { -- cgit v1.2.3-70-g09d2 From b249abaebfc2ce5cfac4cdb454a64ce6273aba2a Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:13 +0530 Subject: cpufreq: exynos: use cpufreq_generic_init() Use generic cpufreq_generic_init() routine instead of replicating the same code here. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/exynos-cpufreq.c | 7 +------ drivers/cpufreq/exynos5440-cpufreq.c | 14 ++------------ 2 files changed, 3 insertions(+), 18 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c index 5244086bb9c..b96fcc84763 100644 --- a/drivers/cpufreq/exynos-cpufreq.c +++ b/drivers/cpufreq/exynos-cpufreq.c @@ -241,12 +241,7 @@ static struct notifier_block exynos_cpufreq_nb = { static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy) { - /* set the transition latency value */ - policy->cpuinfo.transition_latency = 100000; - - cpumask_setall(policy->cpus); - - return cpufreq_table_validate_and_show(policy, exynos_info->freq_table); + return cpufreq_generic_init(policy, exynos_info->freq_table, 100000); } static struct cpufreq_driver exynos_driver = { diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c index 9b7fdec1962..06b73e85eec 100644 --- a/drivers/cpufreq/exynos5440-cpufreq.c +++ b/drivers/cpufreq/exynos5440-cpufreq.c @@ -318,18 +318,8 @@ static void exynos_sort_descend_freq_table(void) static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy) { - int ret; - - ret = cpufreq_table_validate_and_show(policy, dvfs_info->freq_table); - if (ret) { - dev_err(dvfs_info->dev, "Invalid frequency table: %d\n", ret); - return ret; - } - - policy->cpuinfo.transition_latency = dvfs_info->latency; - cpumask_setall(policy->cpus); - - return 0; + return cpufreq_generic_init(policy, dvfs_info->freq_table, + dvfs_info->latency); } static struct cpufreq_driver exynos_driver = { -- cgit v1.2.3-70-g09d2 From 17922ddd8eeb0d6474fbeb32a5366bb82d4273fa Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:14 +0530 Subject: cpufreq: imx6q: use cpufreq_generic_init() Use generic cpufreq_generic_init() routine instead of replicating the same code here. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/imx6q-cpufreq.c | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c index 9d22dfa7a2b..d81062f7dd7 100644 --- a/drivers/cpufreq/imx6q-cpufreq.c +++ b/drivers/cpufreq/imx6q-cpufreq.c @@ -154,18 +154,7 @@ post_notify: static int imx6q_cpufreq_init(struct cpufreq_policy *policy) { - int ret; - - ret = cpufreq_table_validate_and_show(policy, freq_table); - if (ret) { - dev_err(cpu_dev, "invalid frequency table: %d\n", ret); - return ret; - } - - policy->cpuinfo.transition_latency = transition_latency; - cpumask_setall(policy->cpus); - - return 0; + return cpufreq_generic_init(policy, freq_table, transition_latency); } static struct cpufreq_driver imx6q_cpufreq_driver = { -- cgit v1.2.3-70-g09d2 From fa6fa663b61929fbd9a83765aaa1996d65246167 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:15 +0530 Subject: cpufreq: kirkwood: use cpufreq_generic_init() Use generic cpufreq_generic_init() routine instead of replicating the same code here. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/kirkwood-cpufreq.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/kirkwood-cpufreq.c b/drivers/cpufreq/kirkwood-cpufreq.c index dc434c44ace..fff8653c8e9 100644 --- a/drivers/cpufreq/kirkwood-cpufreq.c +++ b/drivers/cpufreq/kirkwood-cpufreq.c @@ -120,10 +120,7 @@ static int kirkwood_cpufreq_target(struct cpufreq_policy *policy, /* Module init and exit code */ static int kirkwood_cpufreq_cpu_init(struct cpufreq_policy *policy) { - /* cpuinfo and default policy values */ - policy->cpuinfo.transition_latency = 5000; /* 5uS */ - - return cpufreq_table_validate_and_show(policy, kirkwood_freq_table); + return cpufreq_generic_init(policy, kirkwood_freq_table, 5000); } static struct cpufreq_driver kirkwood_cpufreq_driver = { -- cgit v1.2.3-70-g09d2 From e0b2da585f286ffa86cd24c0df1c1440d9dae19f Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:16 +0530 Subject: cpufreq: loongson2: use cpufreq_generic_init() Use generic cpufreq_generic_init() routine instead of replicating the same code here. This driver wasn't setting transition_latency and so is getting set to 0 by default. Lets mark it explicitly by calling the generic routine with transition_latency as 0. Signed-off-by: Viresh Kumar Acked-by: Aaro Koskinen Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/loongson2_cpufreq.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c index dd4f3e46f72..2c8ec8e0644 100644 --- a/drivers/cpufreq/loongson2_cpufreq.c +++ b/drivers/cpufreq/loongson2_cpufreq.c @@ -131,8 +131,7 @@ static int loongson2_cpufreq_cpu_init(struct cpufreq_policy *policy) return ret; } - return cpufreq_table_validate_and_show(policy, - &loongson2_clockmod_table[0]); + return cpufreq_generic_init(policy, &loongson2_clockmod_table[0], 0); } static int loongson2_cpufreq_exit(struct cpufreq_policy *policy) -- cgit v1.2.3-70-g09d2 From 7bfd24835697376bebb6f4dd88fa7ebc42937f99 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:17 +0530 Subject: cpufreq: maple: use cpufreq_generic_init() Use generic cpufreq_generic_init() routine instead of replicating the same code here. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/maple-cpufreq.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/maple-cpufreq.c b/drivers/cpufreq/maple-cpufreq.c index 1c0cec1518f..eb1e1766bae 100644 --- a/drivers/cpufreq/maple-cpufreq.c +++ b/drivers/cpufreq/maple-cpufreq.c @@ -165,16 +165,9 @@ static unsigned int maple_cpufreq_get_speed(unsigned int cpu) static int maple_cpufreq_cpu_init(struct cpufreq_policy *policy) { - policy->cpuinfo.transition_latency = 12000; - /* secondary CPUs are tied to the primary one by the - * cpufreq core if in the secondary policy we tell it that - * it actually must be one policy together with all others. */ - cpumask_setall(policy->cpus); - - return cpufreq_table_validate_and_show(policy, maple_cpu_freqs); + return cpufreq_generic_init(policy, maple_cpu_freqs, 12000); } - static struct cpufreq_driver maple_cpufreq_driver = { .name = "maple", .flags = CPUFREQ_CONST_LOOPS, -- cgit v1.2.3-70-g09d2 From 982bce112f48e588bdf8b588dc57c1755fe58805 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:18 +0530 Subject: cpufreq: omap: use cpufreq_generic_init() Use generic cpufreq_generic_init() routine instead of replicating the same code here. This also rearranges the code a bit to make it more sensible. Also removes some unnecessary checks. Cc: Santosh Shilimkar Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/omap-cpufreq.c | 41 +++++++++++------------------------------ 1 file changed, 11 insertions(+), 30 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c index a8c3f90571e..58b2200ec78 100644 --- a/drivers/cpufreq/omap-cpufreq.c +++ b/drivers/cpufreq/omap-cpufreq.c @@ -160,50 +160,31 @@ static inline void freq_table_free(void) static int omap_cpu_init(struct cpufreq_policy *policy) { - int result = 0; + int result; mpu_clk = clk_get(NULL, "cpufreq_ck"); if (IS_ERR(mpu_clk)) return PTR_ERR(mpu_clk); - if (policy->cpu >= NR_CPUS) { - result = -EINVAL; - goto fail_ck; - } - - if (!freq_table) + if (!freq_table) { result = opp_init_cpufreq_table(mpu_dev, &freq_table); - - if (result) { - dev_err(mpu_dev, "%s: cpu%d: failed creating freq table[%d]\n", + if (result) { + dev_err(mpu_dev, + "%s: cpu%d: failed creating freq table[%d]\n", __func__, policy->cpu, result); - goto fail_ck; + goto fail; + } } atomic_inc_return(&freq_table_users); - result = cpufreq_table_validate_and_show(policy, freq_table); - if (result) - goto fail_table; - - /* - * On OMAP SMP configuartion, both processors share the voltage - * and clock. So both CPUs needs to be scaled together and hence - * needs software co-ordination. Use cpufreq affected_cpus - * interface to handle this scenario. Additional is_smp() check - * is to keep SMP_ON_UP build working. - */ - if (is_smp()) - cpumask_setall(policy->cpus); - /* FIXME: what's the actual transition time? */ - policy->cpuinfo.transition_latency = 300 * 1000; - - return 0; + result = cpufreq_generic_init(policy, freq_table, 300 * 1000); + if (!result) + return 0; -fail_table: freq_table_free(); -fail_ck: +fail: clk_put(mpu_clk); return result; } -- cgit v1.2.3-70-g09d2 From e315bb738c618d5a60073ba885c586a874f8deda Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:19 +0530 Subject: cpufreq: pasemi: use cpufreq_generic_init() Use generic cpufreq_generic_init() routine instead of replicating the same code here. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/pasemi-cpufreq.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c index 16f250809d7..1cca332728c 100644 --- a/drivers/cpufreq/pasemi-cpufreq.c +++ b/drivers/cpufreq/pasemi-cpufreq.c @@ -204,20 +204,13 @@ static int pas_cpufreq_cpu_init(struct cpufreq_policy *policy) pr_debug("%d: %d\n", i, pas_freqs[i].frequency); } - policy->cpuinfo.transition_latency = get_gizmo_latency(); - cur_astate = get_cur_astate(policy->cpu); pr_debug("current astate is at %d\n",cur_astate); policy->cur = pas_freqs[cur_astate].frequency; - cpumask_copy(policy->cpus, cpu_online_mask); - ppc_proc_freq = policy->cur * 1000ul; - /* this ensures that policy->cpuinfo_min and policy->cpuinfo_max - * are set correctly - */ - return cpufreq_table_validate_and_show(policy, pas_freqs); + return cpufreq_generic_init(policy, pas_freqs, get_gizmo_latency()); out_unmap_sdcpwr: iounmap(sdcpwr_mapbase); -- cgit v1.2.3-70-g09d2 From 5465e7be76cc75c7dcb08801fa5b7add28d8d3a9 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:20 +0530 Subject: cpufreq: pmac32: use cpufreq_generic_init() Use generic cpufreq_generic_init() routine instead of replicating the same code here. Cc: Benjamin Herrenschmidt Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/pmac32-cpufreq.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/pmac32-cpufreq.c b/drivers/cpufreq/pmac32-cpufreq.c index 672b7f4a7de..6eac1e23007 100644 --- a/drivers/cpufreq/pmac32-cpufreq.c +++ b/drivers/cpufreq/pmac32-cpufreq.c @@ -392,12 +392,7 @@ static int pmac_cpufreq_target( struct cpufreq_policy *policy, static int pmac_cpufreq_cpu_init(struct cpufreq_policy *policy) { - if (policy->cpu != 0) - return -ENODEV; - - policy->cpuinfo.transition_latency = transition_latency; - - return cpufreq_table_validate_and_show(policy, pmac_cpu_freqs); + return cpufreq_generic_init(policy, pmac_cpu_freqs, transition_latency); } static u32 read_gpio(struct device_node *np) -- cgit v1.2.3-70-g09d2 From 8ce6f9de9785857669d39e061c9d2e87d1c516d7 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:21 +0530 Subject: cpufreq: pmac64: use cpufreq_generic_init() Use generic cpufreq_generic_init() routine instead of replicating the same code here. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/pmac64-cpufreq.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c index 79e40c91378..b977b9aa408 100644 --- a/drivers/cpufreq/pmac64-cpufreq.c +++ b/drivers/cpufreq/pmac64-cpufreq.c @@ -347,16 +347,9 @@ static unsigned int g5_cpufreq_get_speed(unsigned int cpu) static int g5_cpufreq_cpu_init(struct cpufreq_policy *policy) { - policy->cpuinfo.transition_latency = transition_latency; - /* secondary CPUs are tied to the primary one by the - * cpufreq core if in the secondary policy we tell it that - * it actually must be one policy together with all others. */ - cpumask_copy(policy->cpus, cpu_online_mask); - - return cpufreq_table_validate_and_show(policy, g5_cpu_freqs); + return cpufreq_generic_init(policy, g5_cpu_freqs, transition_latency); } - static struct cpufreq_driver g5_cpufreq_driver = { .name = "powermac", .flags = CPUFREQ_CONST_LOOPS, -- cgit v1.2.3-70-g09d2 From a307a1e6bc0da1ea1e5960fb386b2bbc3587e808 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:22 +0530 Subject: cpufreq: s3c: use cpufreq_generic_init() Use generic cpufreq_generic_init() routine instead of replicating the same code here. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/s3c2416-cpufreq.c | 6 ++---- drivers/cpufreq/s3c24xx-cpufreq.c | 13 +------------ drivers/cpufreq/s3c64xx-cpufreq.c | 5 ++--- 3 files changed, 5 insertions(+), 19 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/s3c2416-cpufreq.c b/drivers/cpufreq/s3c2416-cpufreq.c index 22c4c2d837b..26a35d13715 100644 --- a/drivers/cpufreq/s3c2416-cpufreq.c +++ b/drivers/cpufreq/s3c2416-cpufreq.c @@ -479,10 +479,8 @@ static int __init s3c2416_cpufreq_driver_init(struct cpufreq_policy *policy) /* Datasheet says PLL stabalisation time must be at least 300us, * so but add some fudge. (reference in LOCKCON0 register description) */ - policy->cpuinfo.transition_latency = (500 * 1000) + - s3c_freq->regulator_latency; - - ret = cpufreq_table_validate_and_show(policy, s3c_freq->freq_table); + ret = cpufreq_generic_init(policy, s3c_freq->freq_table, + (500 * 1000) + s3c_freq->regulator_latency); if (ret) goto err_freq_table; diff --git a/drivers/cpufreq/s3c24xx-cpufreq.c b/drivers/cpufreq/s3c24xx-cpufreq.c index e0fbaefc69a..48508825335 100644 --- a/drivers/cpufreq/s3c24xx-cpufreq.c +++ b/drivers/cpufreq/s3c24xx-cpufreq.c @@ -373,18 +373,7 @@ struct clk *s3c_cpufreq_clk_get(struct device *dev, const char *name) static int s3c_cpufreq_init(struct cpufreq_policy *policy) { - printk(KERN_INFO "%s: initialising policy %p\n", __func__, policy); - - if (policy->cpu != 0) - return -EINVAL; - - /* feed the latency information from the cpu driver */ - policy->cpuinfo.transition_latency = cpu_cur.info->latency; - - if (ftab) - return cpufreq_table_validate_and_show(policy, ftab); - - return 0; + return cpufreq_generic_init(policy, ftab, cpu_cur.info->latency); } static int __init s3c_cpufreq_initclks(void) diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c index a66cfa3e54a..16dc315d31e 100644 --- a/drivers/cpufreq/s3c64xx-cpufreq.c +++ b/drivers/cpufreq/s3c64xx-cpufreq.c @@ -239,9 +239,8 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy) * the PLLs, which we don't currently) is ~300us worst case, * but add some fudge. */ - policy->cpuinfo.transition_latency = (500 * 1000) + regulator_latency; - - ret = cpufreq_table_validate_and_show(policy, s3c64xx_freq_table); + ret = cpufreq_generic_init(policy, s3c64xx_freq_table, + (500 * 1000) + regulator_latency); if (ret != 0) { pr_err("Failed to configure frequency table: %d\n", ret); -- cgit v1.2.3-70-g09d2 From c3d7d87d7f6fc35f1a97b628229e06bb0dffa0bf Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:29:23 +0530 Subject: cpufreq: s5pv210: use cpufreq_generic_init() Use generic cpufreq_generic_init() routine instead of replicating the same code here. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/s5pv210-cpufreq.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/s5pv210-cpufreq.c b/drivers/cpufreq/s5pv210-cpufreq.c index 30d9bb7a393..600b4f472e2 100644 --- a/drivers/cpufreq/s5pv210-cpufreq.c +++ b/drivers/cpufreq/s5pv210-cpufreq.c @@ -543,9 +543,7 @@ static int __init s5pv210_cpu_init(struct cpufreq_policy *policy) s5pv210_dram_conf[1].refresh = (__raw_readl(S5P_VA_DMC1 + 0x30) * 1000); s5pv210_dram_conf[1].freq = clk_get_rate(dmc1_clk); - policy->cpuinfo.transition_latency = 40000; - - return cpufreq_table_validate_and_show(policy, s5pv210_freq_table); + return cpufreq_generic_init(policy, s5pv210_freq_table, 40000); out_dmc1: clk_put(dmc0_clk); -- cgit v1.2.3-70-g09d2 From 9b30367bbf3353a7dfc34ed800b7ff03cb35252b Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:42:09 +0530 Subject: cpufreq: sa11x0: use cpufreq_generic_init() Use generic cpufreq_generic_init() routine instead of replicating the same code here. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/sa1100-cpufreq.c | 6 +----- drivers/cpufreq/sa1110-cpufreq.c | 6 +----- 2 files changed, 2 insertions(+), 10 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/sa1100-cpufreq.c b/drivers/cpufreq/sa1100-cpufreq.c index a1d1bb72bac..b282cea47e6 100644 --- a/drivers/cpufreq/sa1100-cpufreq.c +++ b/drivers/cpufreq/sa1100-cpufreq.c @@ -218,11 +218,7 @@ static int sa1100_target(struct cpufreq_policy *policy, static int __init sa1100_cpu_init(struct cpufreq_policy *policy) { - if (policy->cpu != 0) - return -EINVAL; - policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; - - return cpufreq_table_validate_and_show(policy, sa11x0_freq_table); + return cpufreq_generic_init(policy, sa11x0_freq_table, CPUFREQ_ETERNAL); } static struct cpufreq_driver sa1100_driver __refdata = { diff --git a/drivers/cpufreq/sa1110-cpufreq.c b/drivers/cpufreq/sa1110-cpufreq.c index 9da940e66b7..bca04c0b4a7 100644 --- a/drivers/cpufreq/sa1110-cpufreq.c +++ b/drivers/cpufreq/sa1110-cpufreq.c @@ -332,11 +332,7 @@ static int sa1110_target(struct cpufreq_policy *policy, static int __init sa1110_cpu_init(struct cpufreq_policy *policy) { - if (policy->cpu != 0) - return -EINVAL; - policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; - - return cpufreq_table_validate_and_show(policy, sa11x0_freq_table); + return cpufreq_generic_init(policy, sa11x0_freq_table, CPUFREQ_ETERNAL); } /* sa1110_driver needs __refdata because it must remain after init registers -- cgit v1.2.3-70-g09d2 From 7a936bd085372842fd1c9397a80b74e62026c89e Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:42:10 +0530 Subject: cpufreq: spear: use cpufreq_generic_init() Use generic cpufreq_generic_init() routine instead of replicating the same code here. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/spear-cpufreq.c | 14 ++------------ 1 file changed, 2 insertions(+), 12 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/spear-cpufreq.c b/drivers/cpufreq/spear-cpufreq.c index aacdb615e4e..2a031587f52 100644 --- a/drivers/cpufreq/spear-cpufreq.c +++ b/drivers/cpufreq/spear-cpufreq.c @@ -171,18 +171,8 @@ static int spear_cpufreq_target(struct cpufreq_policy *policy, static int spear_cpufreq_init(struct cpufreq_policy *policy) { - int ret; - - ret = cpufreq_table_validate_and_show(policy, spear_cpufreq.freq_tbl); - if (ret) { - pr_err("cpufreq_table_validate_and_show() failed"); - return ret; - } - - policy->cpuinfo.transition_latency = spear_cpufreq.transition_latency; - cpumask_setall(policy->cpus); - - return 0; + return cpufreq_generic_init(policy, spear_cpufreq.freq_tbl, + spear_cpufreq.transition_latency); } static struct cpufreq_driver spear_cpufreq_driver = { -- cgit v1.2.3-70-g09d2 From 99d428cf0bcdbbbdeb622c338cd5ab72189e8d22 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 3 Oct 2013 20:42:11 +0530 Subject: cpufreq: tegra: use cpufreq_generic_init() Use generic cpufreq_generic_init() routine instead of replicating the same code here. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/tegra-cpufreq.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c index 9c32b23322b..32483ef63d5 100644 --- a/drivers/cpufreq/tegra-cpufreq.c +++ b/drivers/cpufreq/tegra-cpufreq.c @@ -204,19 +204,23 @@ static struct notifier_block tegra_cpu_pm_notifier = { static int tegra_cpu_init(struct cpufreq_policy *policy) { + int ret; + if (policy->cpu >= NUM_CPUS) return -EINVAL; clk_prepare_enable(emc_clk); clk_prepare_enable(cpu_clk); - cpufreq_table_validate_and_show(policy, freq_table); target_cpu_speed[policy->cpu] = tegra_getspeed(policy->cpu); /* FIXME: what's the actual transition time? */ - policy->cpuinfo.transition_latency = 300 * 1000; - - cpumask_copy(policy->cpus, cpu_possible_mask); + ret = cpufreq_generic_init(policy, freq_table, 300 * 1000); + if (ret) { + clk_disable_unprepare(cpu_clk); + clk_disable_unprepare(emc_clk); + return ret; + } if (policy->cpu == 0) register_pm_notifier(&tegra_cpu_pm_notifier); @@ -227,6 +231,7 @@ static int tegra_cpu_init(struct cpufreq_policy *policy) static int tegra_cpu_exit(struct cpufreq_policy *policy) { cpufreq_frequency_table_put_attr(policy->cpu); + clk_disable_unprepare(cpu_clk); clk_disable_unprepare(emc_clk); return 0; } -- cgit v1.2.3-70-g09d2 From 5d7e690d775e59e51caaf03e90811af7729ef278 Mon Sep 17 00:00:00 2001 From: Jungseok Lee Date: Tue, 15 Oct 2013 08:31:13 +0900 Subject: cpufreq: exynos: Show a list of available frequencies This patch adds freq_attr to show a list of exynos5440 scaling available frequencies through sysfs. Common exynos driver already supports this attribute. Signed-off-by: Jungseok Lee Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/exynos5440-cpufreq.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c index 06b73e85eec..fecc3dadb7e 100644 --- a/drivers/cpufreq/exynos5440-cpufreq.c +++ b/drivers/cpufreq/exynos5440-cpufreq.c @@ -330,6 +330,7 @@ static struct cpufreq_driver exynos_driver = { .init = exynos_cpufreq_cpu_init, .exit = cpufreq_generic_exit, .name = CPUFREQ_NAME, + .attr = cpufreq_generic_attr, }; static const struct of_device_id exynos_cpufreq_match[] = { -- cgit v1.2.3-70-g09d2 From 076dec90fc32c830184b0f0fa1842a6de1199bc6 Mon Sep 17 00:00:00 2001 From: Sudeep KarkadaNagesha Date: Wed, 16 Oct 2013 14:52:39 +0100 Subject: cpufreq: arm-big-little: use clk_get instead of clk_get_sys Currently clk_get_sys is used with cpu-cluster. as the device id which is incorrect. It should be connection/consumer ID instead. It is possible to specify input clock in the cpu device node along with the optional clock-name. clk_get_sys can't handle that. This patch replaces clk_get_sys with clk_get to extend support for clocks specified in the device tree cpu node. Signed-off-by: Sudeep KarkadaNagesha Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/arm_big_little.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c index f7717efdd28..31b41a4c0df 100644 --- a/drivers/cpufreq/arm_big_little.c +++ b/drivers/cpufreq/arm_big_little.c @@ -119,7 +119,7 @@ static int get_cluster_clk_and_freq_table(struct device *cpu_dev) } name[12] = cluster + '0'; - clk[cluster] = clk_get_sys(name, NULL); + clk[cluster] = clk_get(cpu_dev, name); if (!IS_ERR(clk[cluster])) { dev_dbg(cpu_dev, "%s: clk: %p & freq table: %p, cluster: %d\n", __func__, clk[cluster], freq_table[cluster], -- cgit v1.2.3-70-g09d2 From 1bab64d50e09706ee2e634b2df3c53346f0a0dbb Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 16 Oct 2013 23:58:10 +0200 Subject: acpi-cpufreq: Add comment under ACPI_ADR_SPACE_SYSTEM_IO case policy->cur is now set by cpufreq core when cpufreq_driver->get() is defined and so drivers aren't required to set it. When space_id is ACPI_ADR_SPACE_SYSTEM_IO for acpi cpufreq driver it doesn't set ->get to a valid function pointer and so policy->cur is required to be set by driver. This is already followed in acpi-cpufreq driver. This patch adds a comment describing why we need to set policy->cur from driver. Suggested-by: Rafael J. Wysocki Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/acpi-cpufreq.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c index a8dac7b5304..a1717d7367c 100644 --- a/drivers/cpufreq/acpi-cpufreq.c +++ b/drivers/cpufreq/acpi-cpufreq.c @@ -837,7 +837,12 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) switch (perf->control_register.space_id) { case ACPI_ADR_SPACE_SYSTEM_IO: - /* Current speed is unknown and not detectable by IO port */ + /* + * The core will not set policy->cur, because + * cpufreq_driver->get is NULL, so we need to set it here. + * However, we have to guess it, because the current speed is + * unknown and not detectable via IO ports. + */ policy->cur = acpi_cpufreq_guess_freq(data, policy->cpu); break; case ACPI_ADR_SPACE_FIXED_HARDWARE: -- cgit v1.2.3-70-g09d2 From 7b6f38f09ebb4b88e8ed7740bcbcc08a8882bbb7 Mon Sep 17 00:00:00 2001 From: Evgeny Kapaev Date: Tue, 15 Oct 2013 21:42:52 +0400 Subject: speedstep-centrino: Remove unnecessary braces As per coding style, braces {} are not necessary for single statement block Signed-off-by: Evgeny Kapaev Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/speedstep-centrino.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c index 6b882c7b321..25e45f89aca 100644 --- a/drivers/cpufreq/speedstep-centrino.c +++ b/drivers/cpufreq/speedstep-centrino.c @@ -371,9 +371,8 @@ static int centrino_cpu_init(struct cpufreq_policy *policy) return -ENODEV; } - if (centrino_cpu_init_table(policy)) { + if (centrino_cpu_init_table(policy)) return -ENODEV; - } /* Check to see if Enhanced SpeedStep is enabled, and try to enable it if not. */ -- cgit v1.2.3-70-g09d2 From 006454ae779d5d3f6ac518f0903475a5142bef5b Mon Sep 17 00:00:00 2001 From: Manish Badarkhe Date: Wed, 9 Oct 2013 20:43:37 +0530 Subject: exynos-cpufreq: fix false return check from "regulator_set_voltage" Currently, code checks false return value from "regulator_set_voltage" to show failure message. Modify the code to check proper return value from "regulator_set_voltage". Signed-off-by: Manish Badarkhe Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/exynos-cpufreq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c index b96fcc84763..3e4af676f43 100644 --- a/drivers/cpufreq/exynos-cpufreq.c +++ b/drivers/cpufreq/exynos-cpufreq.c @@ -135,7 +135,7 @@ post_notify: if ((freqs.new < freqs.old) || ((freqs.new > freqs.old) && safe_arm_volt)) { /* down the voltage after frequency change */ - regulator_set_voltage(arm_regulator, arm_volt, + ret = regulator_set_voltage(arm_regulator, arm_volt, arm_volt); if (ret) { pr_err("%s: failed to set cpu voltage to %d\n", -- cgit v1.2.3-70-g09d2 From fbbc5bfb44a22e7a8ef753a1c8dfb448d7ac8b85 Mon Sep 17 00:00:00 2001 From: Mark Langsdorf Date: Tue, 1 Oct 2013 10:30:24 -0500 Subject: cpufreq: highbank-cpufreq: Enable Midway/ECX-2000 Calxeda's new ECX-2000 part uses the same cpufreq interface as highbank, so add it to the driver's compatibility list. This is a minor change that can safely be applied to the 3.10 and 3.11 stable trees. Signed-off-by: Mark Langsdorf Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/highbank-cpufreq.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/highbank-cpufreq.c b/drivers/cpufreq/highbank-cpufreq.c index 794123fcf3e..bf8902a0866 100644 --- a/drivers/cpufreq/highbank-cpufreq.c +++ b/drivers/cpufreq/highbank-cpufreq.c @@ -66,7 +66,8 @@ static int hb_cpufreq_driver_init(void) struct device_node *np; int ret; - if (!of_machine_is_compatible("calxeda,highbank")) + if ((!of_machine_is_compatible("calxeda,highbank")) && + (!of_machine_is_compatible("calxeda,ecx-2000"))) return -ENODEV; cpu_dev = get_cpu_device(0); -- cgit v1.2.3-70-g09d2 From 45a428ebbf7d6a4ec77cf02fc706ecd62b261bd9 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Mon, 30 Sep 2013 23:44:31 +0300 Subject: cpufreq: pmac64: speed up frequency switch Some functions on switch path use msleep() which is inaccurate, and depends on HZ. With HZ=100 msleep(1) takes actually over ten times longer. Using usleep_range() we get more accurate sleeps. I measured the "pfunc_slewing_done" polling to take 300us at max (on 2.3GHz dual-processor Xserve G5), so using 500us sleep there should be fine. With the patch, g5_switch_freq() duration drops from ~50ms to ~10ms on Xserve with HZ=100. Signed-off-by: Aaro Koskinen Acked-by: Viresh Kumar Acked-by: Benjamin Herrenschmidt Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/pmac64-cpufreq.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c index b977b9aa408..889c0d55357 100644 --- a/drivers/cpufreq/pmac64-cpufreq.c +++ b/drivers/cpufreq/pmac64-cpufreq.c @@ -137,7 +137,7 @@ static void g5_vdnap_switch_volt(int speed_mode) pmf_call_one(pfunc_vdnap0_complete, &args); if (done) break; - msleep(1); + usleep_range(1000, 1000); } if (done == 0) printk(KERN_WARNING "cpufreq: Timeout in clock slewing !\n"); @@ -236,7 +236,7 @@ static void g5_pfunc_switch_volt(int speed_mode) if (pfunc_cpu1_volt_low) pmf_call_one(pfunc_cpu1_volt_low, NULL); } - msleep(10); /* should be faster , to fix */ + usleep_range(10000, 10000); /* should be faster , to fix */ } /* @@ -281,7 +281,7 @@ static int g5_pfunc_switch_freq(int speed_mode) pmf_call_one(pfunc_slewing_done, &args); if (done) break; - msleep(1); + usleep_range(500, 500); } if (done == 0) printk(KERN_WARNING "cpufreq: Timeout in clock slewing !\n"); -- cgit v1.2.3-70-g09d2 From af671d8b2c2ace771e08566b20774cc08ee53316 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Mon, 30 Sep 2013 23:44:32 +0300 Subject: cpufreq: pmac64: provide cpufreq transition latency for older G5 models Currently cpufreq ondemand governor cannot used on older G5 models, because the transition latency is set to CPUFREQ_ETERNAL. Provide a value based on a measurement on Xserve G5, which happens to be also the highest allowed latency. Signed-off-by: Aaro Koskinen Acked-by: Benjamin Herrenschmidt Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/pmac64-cpufreq.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c index 889c0d55357..db9764e8366 100644 --- a/drivers/cpufreq/pmac64-cpufreq.c +++ b/drivers/cpufreq/pmac64-cpufreq.c @@ -627,8 +627,10 @@ static int __init g5_pm72_cpufreq_init(struct device_node *cpunode) g5_cpu_freqs[0].frequency = max_freq; g5_cpu_freqs[1].frequency = min_freq; + /* Based on a measurement on Xserve G5, rounded up. */ + transition_latency = 10 * NSEC_PER_MSEC; + /* Set callbacks */ - transition_latency = CPUFREQ_ETERNAL; g5_switch_volt = g5_pfunc_switch_volt; g5_switch_freq = g5_pfunc_switch_freq; g5_query_freq = g5_pfunc_query_freq; -- cgit v1.2.3-70-g09d2 From 891083622621bfe114ec4d40711a7d3a68fdc6fc Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Mon, 30 Sep 2013 23:44:33 +0300 Subject: cpufreq: pmac64: enable cpufreq on iMac G5 (iSight) model Enable cpufreq on iMac G5 (iSight) model. Tested with the 2.1 GHz version. Signed-off-by: Aaro Koskinen Acked-by: Viresh Kumar Acked-by: Benjamin Herrenschmidt Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/pmac64-cpufreq.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c index db9764e8366..5261b92d768 100644 --- a/drivers/cpufreq/pmac64-cpufreq.c +++ b/drivers/cpufreq/pmac64-cpufreq.c @@ -377,7 +377,8 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpunode) /* Check supported platforms */ if (of_machine_is_compatible("PowerMac8,1") || of_machine_is_compatible("PowerMac8,2") || - of_machine_is_compatible("PowerMac9,1")) + of_machine_is_compatible("PowerMac9,1") || + of_machine_is_compatible("PowerMac12,1")) use_volts_smu = 1; else if (of_machine_is_compatible("PowerMac11,2")) use_volts_vdnap = 1; -- cgit v1.2.3-70-g09d2 From 99ec899eafe2ec0a7dd96e9de5fa0a2bea3032ba Mon Sep 17 00:00:00 2001 From: "Srivatsa S. Bhat" Date: Thu, 12 Sep 2013 17:29:09 +0530 Subject: cpufreq: Detect spurious invocations of update_policy_cpu() The function update_policy_cpu() is expected to be called when the policy->cpu of a cpufreq policy is to be changed: ie., the new CPU nominated to become the policy->cpu is different from the old one. Print a warning if it is invoked with new_cpu == old_cpu, since such an invocation might hint at a faulty logic in the caller. Suggested-by: Viresh Kumar Signed-off-by: Srivatsa S. Bhat Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index f0897c75468..ec391d7f010 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -969,7 +969,7 @@ static void cpufreq_policy_free(struct cpufreq_policy *policy) static void update_policy_cpu(struct cpufreq_policy *policy, unsigned int cpu) { - if (cpu == policy->cpu) + if (WARN_ON(cpu == policy->cpu)) return; /* -- cgit v1.2.3-70-g09d2 From cf4671559fdc0550de38fc8f6cd0ea6369736f1f Mon Sep 17 00:00:00 2001 From: Lukasz Majewski Date: Wed, 9 Oct 2013 14:08:42 +0200 Subject: cpufreq: exynos4x12: Use the common clock framework to set APLL clock rate In the exynos4x12_set_apll() function, the APLL frequency is set with direct register manipulation. Such approach is not allowed in the common clock framework. The frequency is changed, but the corresponding clock value is not updated. This causes wrong frequency read from cpufreq's cpuinfo_cur_freq sysfs attribute. Also direct manipulation with PLL's S parameter has been removed. It is already done at PLL35xx code. Tested at: - Exynos4412 - Trats2 board (linux 3.12-rc4) Signed-off-by: Lukasz Majewski Reviewed-by: Bartlomiej Zolnierkiewicz Reviewed-by: Tomasz Figa Reviewed-by: Yadwinder Singh Brar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/exynos4x12-cpufreq.c | 69 +++++------------------------------- 1 file changed, 8 insertions(+), 61 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/exynos4x12-cpufreq.c b/drivers/cpufreq/exynos4x12-cpufreq.c index 08b7477b0aa..8683304ce62 100644 --- a/drivers/cpufreq/exynos4x12-cpufreq.c +++ b/drivers/cpufreq/exynos4x12-cpufreq.c @@ -128,9 +128,9 @@ static void exynos4x12_set_clkdiv(unsigned int div_index) static void exynos4x12_set_apll(unsigned int index) { - unsigned int tmp, pdiv; + unsigned int tmp, freq = apll_freq_4x12[index].freq; - /* 1. MUX_CORE_SEL = MPLL, ARMCLK uses MPLL for lock time */ + /* MUX_CORE_SEL = MPLL, ARMCLK uses MPLL for lock time */ clk_set_parent(moutcore, mout_mpll); do { @@ -140,24 +140,9 @@ static void exynos4x12_set_apll(unsigned int index) tmp &= 0x7; } while (tmp != 0x2); - /* 2. Set APLL Lock time */ - pdiv = ((apll_freq_4x12[index].mps >> 8) & 0x3f); + clk_set_rate(mout_apll, freq * 1000); - __raw_writel((pdiv * 250), EXYNOS4_APLL_LOCK); - - /* 3. Change PLL PMS values */ - tmp = __raw_readl(EXYNOS4_APLL_CON0); - tmp &= ~((0x3ff << 16) | (0x3f << 8) | (0x7 << 0)); - tmp |= apll_freq_4x12[index].mps; - __raw_writel(tmp, EXYNOS4_APLL_CON0); - - /* 4. wait_lock_time */ - do { - cpu_relax(); - tmp = __raw_readl(EXYNOS4_APLL_CON0); - } while (!(tmp & (0x1 << EXYNOS4_APLLCON0_LOCKED_SHIFT))); - - /* 5. MUX_CORE_SEL = APLL */ + /* MUX_CORE_SEL = APLL */ clk_set_parent(moutcore, mout_apll); do { @@ -167,52 +152,15 @@ static void exynos4x12_set_apll(unsigned int index) } while (tmp != (0x1 << EXYNOS4_CLKSRC_CPU_MUXCORE_SHIFT)); } -static bool exynos4x12_pms_change(unsigned int old_index, unsigned int new_index) -{ - unsigned int old_pm = apll_freq_4x12[old_index].mps >> 8; - unsigned int new_pm = apll_freq_4x12[new_index].mps >> 8; - - return (old_pm == new_pm) ? 0 : 1; -} - static void exynos4x12_set_frequency(unsigned int old_index, unsigned int new_index) { - unsigned int tmp; - if (old_index > new_index) { - if (!exynos4x12_pms_change(old_index, new_index)) { - /* 1. Change the system clock divider values */ - exynos4x12_set_clkdiv(new_index); - /* 2. Change just s value in apll m,p,s value */ - tmp = __raw_readl(EXYNOS4_APLL_CON0); - tmp &= ~(0x7 << 0); - tmp |= apll_freq_4x12[new_index].mps & 0x7; - __raw_writel(tmp, EXYNOS4_APLL_CON0); - - } else { - /* Clock Configuration Procedure */ - /* 1. Change the system clock divider values */ - exynos4x12_set_clkdiv(new_index); - /* 2. Change the apll m,p,s value */ - exynos4x12_set_apll(new_index); - } + exynos4x12_set_clkdiv(new_index); + exynos4x12_set_apll(new_index); } else if (old_index < new_index) { - if (!exynos4x12_pms_change(old_index, new_index)) { - /* 1. Change just s value in apll m,p,s value */ - tmp = __raw_readl(EXYNOS4_APLL_CON0); - tmp &= ~(0x7 << 0); - tmp |= apll_freq_4x12[new_index].mps & 0x7; - __raw_writel(tmp, EXYNOS4_APLL_CON0); - /* 2. Change the system clock divider values */ - exynos4x12_set_clkdiv(new_index); - } else { - /* Clock Configuration Procedure */ - /* 1. Change the apll m,p,s value */ - exynos4x12_set_apll(new_index); - /* 2. Change the system clock divider values */ - exynos4x12_set_clkdiv(new_index); - } + exynos4x12_set_apll(new_index); + exynos4x12_set_clkdiv(new_index); } } @@ -250,7 +198,6 @@ int exynos4x12_cpufreq_init(struct exynos_dvfs_info *info) info->volt_table = exynos4x12_volt_table; info->freq_table = exynos4x12_freq_table; info->set_freq = exynos4x12_set_frequency; - info->need_apll_change = exynos4x12_pms_change; return 0; -- cgit v1.2.3-70-g09d2 From 7ad65d592b0a7f70fe21af2e3d4d02c76333d5a0 Mon Sep 17 00:00:00 2001 From: Lukasz Majewski Date: Wed, 9 Oct 2013 14:08:43 +0200 Subject: cpufreq: exynos4210: Use the common clock framework to set APLL clock rate In the exynos4210_set_apll() function, the APLL frequency is set with direct register manipulation. Such approach is not allowed in the common clock framework. The frequency is changed, but the corresponding clock value is not updated. This causes wrong frequency read from cpufreq's cpuinfo_cur_freq sysfs attribute. Also direct manipulation with PLL's S parameter has been removed. It is already done at PLL35xx code. Tested at: - Exynos4210 - Trats board (linux 3.12-rc4) Signed-off-by: Lukasz Majewski Reviewed-by: Yadwinder Singh Brar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/exynos4210-cpufreq.c | 67 +++++------------------------------- 1 file changed, 8 insertions(+), 59 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/exynos4210-cpufreq.c b/drivers/cpufreq/exynos4210-cpufreq.c index add7fbec4fc..f2c75065ce1 100644 --- a/drivers/cpufreq/exynos4210-cpufreq.c +++ b/drivers/cpufreq/exynos4210-cpufreq.c @@ -81,9 +81,9 @@ static void exynos4210_set_clkdiv(unsigned int div_index) static void exynos4210_set_apll(unsigned int index) { - unsigned int tmp; + unsigned int tmp, freq = apll_freq_4210[index].freq; - /* 1. MUX_CORE_SEL = MPLL, ARMCLK uses MPLL for lock time */ + /* MUX_CORE_SEL = MPLL, ARMCLK uses MPLL for lock time */ clk_set_parent(moutcore, mout_mpll); do { @@ -92,21 +92,9 @@ static void exynos4210_set_apll(unsigned int index) tmp &= 0x7; } while (tmp != 0x2); - /* 2. Set APLL Lock time */ - __raw_writel(EXYNOS4_APLL_LOCKTIME, EXYNOS4_APLL_LOCK); - - /* 3. Change PLL PMS values */ - tmp = __raw_readl(EXYNOS4_APLL_CON0); - tmp &= ~((0x3ff << 16) | (0x3f << 8) | (0x7 << 0)); - tmp |= apll_freq_4210[index].mps; - __raw_writel(tmp, EXYNOS4_APLL_CON0); + clk_set_rate(mout_apll, freq * 1000); - /* 4. wait_lock_time */ - do { - tmp = __raw_readl(EXYNOS4_APLL_CON0); - } while (!(tmp & (0x1 << EXYNOS4_APLLCON0_LOCKED_SHIFT))); - - /* 5. MUX_CORE_SEL = APLL */ + /* MUX_CORE_SEL = APLL */ clk_set_parent(moutcore, mout_apll); do { @@ -115,53 +103,15 @@ static void exynos4210_set_apll(unsigned int index) } while (tmp != (0x1 << EXYNOS4_CLKSRC_CPU_MUXCORE_SHIFT)); } -static bool exynos4210_pms_change(unsigned int old_index, unsigned int new_index) -{ - unsigned int old_pm = apll_freq_4210[old_index].mps >> 8; - unsigned int new_pm = apll_freq_4210[new_index].mps >> 8; - - return (old_pm == new_pm) ? 0 : 1; -} - static void exynos4210_set_frequency(unsigned int old_index, unsigned int new_index) { - unsigned int tmp; - if (old_index > new_index) { - if (!exynos4210_pms_change(old_index, new_index)) { - /* 1. Change the system clock divider values */ - exynos4210_set_clkdiv(new_index); - - /* 2. Change just s value in apll m,p,s value */ - tmp = __raw_readl(EXYNOS4_APLL_CON0); - tmp &= ~(0x7 << 0); - tmp |= apll_freq_4210[new_index].mps & 0x7; - __raw_writel(tmp, EXYNOS4_APLL_CON0); - } else { - /* Clock Configuration Procedure */ - /* 1. Change the system clock divider values */ - exynos4210_set_clkdiv(new_index); - /* 2. Change the apll m,p,s value */ - exynos4210_set_apll(new_index); - } + exynos4210_set_clkdiv(new_index); + exynos4210_set_apll(new_index); } else if (old_index < new_index) { - if (!exynos4210_pms_change(old_index, new_index)) { - /* 1. Change just s value in apll m,p,s value */ - tmp = __raw_readl(EXYNOS4_APLL_CON0); - tmp &= ~(0x7 << 0); - tmp |= apll_freq_4210[new_index].mps & 0x7; - __raw_writel(tmp, EXYNOS4_APLL_CON0); - - /* 2. Change the system clock divider values */ - exynos4210_set_clkdiv(new_index); - } else { - /* Clock Configuration Procedure */ - /* 1. Change the apll m,p,s value */ - exynos4210_set_apll(new_index); - /* 2. Change the system clock divider values */ - exynos4210_set_clkdiv(new_index); - } + exynos4210_set_apll(new_index); + exynos4210_set_clkdiv(new_index); } } @@ -194,7 +144,6 @@ int exynos4210_cpufreq_init(struct exynos_dvfs_info *info) info->volt_table = exynos4210_volt_table; info->freq_table = exynos4210_freq_table; info->set_freq = exynos4210_set_frequency; - info->need_apll_change = exynos4210_pms_change; return 0; -- cgit v1.2.3-70-g09d2 From a814613b9a32d9ab9578d9dab396265c826d37f0 Mon Sep 17 00:00:00 2001 From: Lan Tianyu Date: Wed, 11 Sep 2013 20:49:57 +0800 Subject: cpufreq / governor: Remove fossil comment cpufreq_set_policy() has been changed to origin __cpufreq_set_policy() and policy->lock has been converted to rewrite lock by commit 5a01f2. So remove the comment. Acked-by: Viresh Kumar Signed-off-by: Lan Tianyu Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq_userspace.c | 11 ----------- 1 file changed, 11 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cpufreq_userspace.c b/drivers/cpufreq/cpufreq_userspace.c index 03078090b5f..4dbf1db16ac 100644 --- a/drivers/cpufreq/cpufreq_userspace.c +++ b/drivers/cpufreq/cpufreq_userspace.c @@ -38,18 +38,7 @@ static int cpufreq_set(struct cpufreq_policy *policy, unsigned int freq) if (!per_cpu(cpu_is_managed, policy->cpu)) goto err; - /* - * We're safe from concurrent calls to ->target() here - * as we hold the userspace_mutex lock. If we were calling - * cpufreq_driver_target, a deadlock situation might occur: - * A: cpufreq_set (lock userspace_mutex) -> - * cpufreq_driver_target(lock policy->lock) - * B: cpufreq_set_policy(lock policy->lock) -> - * __cpufreq_governor -> - * cpufreq_governor_userspace (lock userspace_mutex) - */ ret = __cpufreq_driver_target(policy, freq, CPUFREQ_RELATION_L); - err: mutex_unlock(&userspace_mutex); return ret; -- cgit v1.2.3-70-g09d2 From 5d4879cda67b09f086807821cf594ee079d6dfbe Mon Sep 17 00:00:00 2001 From: Nishanth Menon Date: Thu, 19 Sep 2013 16:03:50 -0500 Subject: PM / OPP: rename functions to dev_pm_opp* Since Operating Performance Points (OPP) functions are specific to device specific power management, be specific and rename opp_* accessors in OPP library with dev_pm_opp_* equivalent. Affected functions are: opp_get_voltage opp_get_freq opp_get_opp_count opp_find_freq_exact opp_find_freq_floor opp_find_freq_ceil opp_add opp_enable opp_disable opp_get_notifier opp_init_cpufreq_table opp_free_cpufreq_table Reported-by: Randy Dunlap Signed-off-by: Nishanth Menon Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- Documentation/power/opp.txt | 102 ++++++++++++++++---------------- arch/arm/mach-imx/mach-imx6q.c | 2 +- arch/arm/mach-omap2/board-omap3beagle.c | 8 +-- arch/arm/mach-omap2/opp.c | 4 +- arch/arm/mach-omap2/pm.c | 4 +- drivers/base/power/opp.c | 82 ++++++++++++------------- drivers/cpufreq/arm_big_little.c | 6 +- drivers/cpufreq/cpufreq-cpu0.c | 18 +++--- drivers/cpufreq/exynos5440-cpufreq.c | 13 ++-- drivers/cpufreq/imx6q-cpufreq.c | 20 +++---- drivers/cpufreq/omap-cpufreq.c | 8 +-- drivers/devfreq/devfreq.c | 14 ++--- drivers/devfreq/exynos/exynos4_bus.c | 21 +++---- drivers/devfreq/exynos/exynos5_bus.c | 18 +++--- include/linux/opp.h | 50 ++++++++-------- 15 files changed, 187 insertions(+), 183 deletions(-) (limited to 'drivers/cpufreq') diff --git a/Documentation/power/opp.txt b/Documentation/power/opp.txt index 425c51d56ae..185367b1848 100644 --- a/Documentation/power/opp.txt +++ b/Documentation/power/opp.txt @@ -71,14 +71,14 @@ operations until that OPP could be re-enabled if possible. OPP library facilitates this concept in it's implementation. The following operational functions operate only on available opps: -opp_find_freq_{ceil, floor}, opp_get_voltage, opp_get_freq, opp_get_opp_count -and opp_init_cpufreq_table +opp_find_freq_{ceil, floor}, dev_pm_opp_get_voltage, dev_pm_opp_get_freq, dev_pm_opp_get_opp_count +and dev_pm_opp_init_cpufreq_table -opp_find_freq_exact is meant to be used to find the opp pointer which can then -be used for opp_enable/disable functions to make an opp available as required. +dev_pm_opp_find_freq_exact is meant to be used to find the opp pointer which can then +be used for dev_pm_opp_enable/disable functions to make an opp available as required. WARNING: Users of OPP library should refresh their availability count using -get_opp_count if opp_enable/disable functions are invoked for a device, the +get_opp_count if dev_pm_opp_enable/disable functions are invoked for a device, the exact mechanism to trigger these or the notification mechanism to other dependent subsystems such as cpufreq are left to the discretion of the SoC specific framework which uses the OPP library. Similar care needs to be taken @@ -96,24 +96,24 @@ using RCU read locks. The opp_find_freq_{exact,ceil,floor}, opp_get_{voltage, freq, opp_count} fall into this category. opp_{add,enable,disable} are updaters which use mutex and implement it's own -RCU locking mechanisms. opp_init_cpufreq_table acts as an updater and uses +RCU locking mechanisms. dev_pm_opp_init_cpufreq_table acts as an updater and uses mutex to implment RCU updater strategy. These functions should *NOT* be called under RCU locks and other contexts that prevent blocking functions in RCU or mutex operations from working. 2. Initial OPP List Registration ================================ -The SoC implementation calls opp_add function iteratively to add OPPs per +The SoC implementation calls dev_pm_opp_add function iteratively to add OPPs per device. It is expected that the SoC framework will register the OPP entries optimally- typical numbers range to be less than 5. The list generated by registering the OPPs is maintained by OPP library throughout the device operation. The SoC framework can subsequently control the availability of the -OPPs dynamically using the opp_enable / disable functions. +OPPs dynamically using the dev_pm_opp_enable / disable functions. -opp_add - Add a new OPP for a specific domain represented by the device pointer. +dev_pm_opp_add - Add a new OPP for a specific domain represented by the device pointer. The OPP is defined using the frequency and voltage. Once added, the OPP is assumed to be available and control of it's availability can be done - with the opp_enable/disable functions. OPP library internally stores + with the dev_pm_opp_enable/disable functions. OPP library internally stores and manages this information in the opp struct. This function may be used by SoC framework to define a optimal list as per the demands of SoC usage environment. @@ -124,7 +124,7 @@ opp_add - Add a new OPP for a specific domain represented by the device pointer. soc_pm_init() { /* Do things */ - r = opp_add(mpu_dev, 1000000, 900000); + r = dev_pm_opp_add(mpu_dev, 1000000, 900000); if (!r) { pr_err("%s: unable to register mpu opp(%d)\n", r); goto no_cpufreq; @@ -143,44 +143,44 @@ functions return the matching pointer representing the opp if a match is found, else returns error. These errors are expected to be handled by standard error checks such as IS_ERR() and appropriate actions taken by the caller. -opp_find_freq_exact - Search for an OPP based on an *exact* frequency and +dev_pm_opp_find_freq_exact - Search for an OPP based on an *exact* frequency and availability. This function is especially useful to enable an OPP which is not available by default. Example: In a case when SoC framework detects a situation where a higher frequency could be made available, it can use this function to - find the OPP prior to call the opp_enable to actually make it available. + find the OPP prior to call the dev_pm_opp_enable to actually make it available. rcu_read_lock(); - opp = opp_find_freq_exact(dev, 1000000000, false); + opp = dev_pm_opp_find_freq_exact(dev, 1000000000, false); rcu_read_unlock(); /* dont operate on the pointer.. just do a sanity check.. */ if (IS_ERR(opp)) { pr_err("frequency not disabled!\n"); /* trigger appropriate actions.. */ } else { - opp_enable(dev,1000000000); + dev_pm_opp_enable(dev,1000000000); } NOTE: This is the only search function that operates on OPPs which are not available. -opp_find_freq_floor - Search for an available OPP which is *at most* the +dev_pm_opp_find_freq_floor - Search for an available OPP which is *at most* the provided frequency. This function is useful while searching for a lesser match OR operating on OPP information in the order of decreasing frequency. Example: To find the highest opp for a device: freq = ULONG_MAX; rcu_read_lock(); - opp_find_freq_floor(dev, &freq); + dev_pm_opp_find_freq_floor(dev, &freq); rcu_read_unlock(); -opp_find_freq_ceil - Search for an available OPP which is *at least* the +dev_pm_opp_find_freq_ceil - Search for an available OPP which is *at least* the provided frequency. This function is useful while searching for a higher match OR operating on OPP information in the order of increasing frequency. Example 1: To find the lowest opp for a device: freq = 0; rcu_read_lock(); - opp_find_freq_ceil(dev, &freq); + dev_pm_opp_find_freq_ceil(dev, &freq); rcu_read_unlock(); Example 2: A simplified implementation of a SoC cpufreq_driver->target: soc_cpufreq_target(..) @@ -188,7 +188,7 @@ opp_find_freq_ceil - Search for an available OPP which is *at least* the /* Do stuff like policy checks etc. */ /* Find the best frequency match for the req */ rcu_read_lock(); - opp = opp_find_freq_ceil(dev, &freq); + opp = dev_pm_opp_find_freq_ceil(dev, &freq); rcu_read_unlock(); if (!IS_ERR(opp)) soc_switch_to_freq_voltage(freq); @@ -208,34 +208,34 @@ as thermal considerations (e.g. don't use OPPx until the temperature drops). WARNING: Do not use these functions in interrupt context. -opp_enable - Make a OPP available for operation. +dev_pm_opp_enable - Make a OPP available for operation. Example: Lets say that 1GHz OPP is to be made available only if the SoC temperature is lower than a certain threshold. The SoC framework implementation might choose to do something as follows: if (cur_temp < temp_low_thresh) { /* Enable 1GHz if it was disabled */ rcu_read_lock(); - opp = opp_find_freq_exact(dev, 1000000000, false); + opp = dev_pm_opp_find_freq_exact(dev, 1000000000, false); rcu_read_unlock(); /* just error check */ if (!IS_ERR(opp)) - ret = opp_enable(dev, 1000000000); + ret = dev_pm_opp_enable(dev, 1000000000); else goto try_something_else; } -opp_disable - Make an OPP to be not available for operation +dev_pm_opp_disable - Make an OPP to be not available for operation Example: Lets say that 1GHz OPP is to be disabled if the temperature exceeds a threshold value. The SoC framework implementation might choose to do something as follows: if (cur_temp > temp_high_thresh) { /* Disable 1GHz if it was enabled */ rcu_read_lock(); - opp = opp_find_freq_exact(dev, 1000000000, true); + opp = dev_pm_opp_find_freq_exact(dev, 1000000000, true); rcu_read_unlock(); /* just error check */ if (!IS_ERR(opp)) - ret = opp_disable(dev, 1000000000); + ret = dev_pm_opp_disable(dev, 1000000000); else goto try_something_else; } @@ -247,7 +247,7 @@ information from the OPP structure is necessary. Once an OPP pointer is retrieved using the search functions, the following functions can be used by SoC framework to retrieve the information represented inside the OPP layer. -opp_get_voltage - Retrieve the voltage represented by the opp pointer. +dev_pm_opp_get_voltage - Retrieve the voltage represented by the opp pointer. Example: At a cpufreq transition to a different frequency, SoC framework requires to set the voltage represented by the OPP using the regulator framework to the Power Management chip providing the @@ -256,15 +256,15 @@ opp_get_voltage - Retrieve the voltage represented by the opp pointer. { /* do things */ rcu_read_lock(); - opp = opp_find_freq_ceil(dev, &freq); - v = opp_get_voltage(opp); + opp = dev_pm_opp_find_freq_ceil(dev, &freq); + v = dev_pm_opp_get_voltage(opp); rcu_read_unlock(); if (v) regulator_set_voltage(.., v); /* do other things */ } -opp_get_freq - Retrieve the freq represented by the opp pointer. +dev_pm_opp_get_freq - Retrieve the freq represented by the opp pointer. Example: Lets say the SoC framework uses a couple of helper functions we could pass opp pointers instead of doing additional parameters to handle quiet a bit of data parameters. @@ -273,8 +273,8 @@ opp_get_freq - Retrieve the freq represented by the opp pointer. /* do things.. */ max_freq = ULONG_MAX; rcu_read_lock(); - max_opp = opp_find_freq_floor(dev,&max_freq); - requested_opp = opp_find_freq_ceil(dev,&freq); + max_opp = dev_pm_opp_find_freq_floor(dev,&max_freq); + requested_opp = dev_pm_opp_find_freq_ceil(dev,&freq); if (!IS_ERR(max_opp) && !IS_ERR(requested_opp)) r = soc_test_validity(max_opp, requested_opp); rcu_read_unlock(); @@ -282,25 +282,25 @@ opp_get_freq - Retrieve the freq represented by the opp pointer. } soc_test_validity(..) { - if(opp_get_voltage(max_opp) < opp_get_voltage(requested_opp)) + if(dev_pm_opp_get_voltage(max_opp) < dev_pm_opp_get_voltage(requested_opp)) return -EINVAL; - if(opp_get_freq(max_opp) < opp_get_freq(requested_opp)) + if(dev_pm_opp_get_freq(max_opp) < dev_pm_opp_get_freq(requested_opp)) return -EINVAL; /* do things.. */ } -opp_get_opp_count - Retrieve the number of available opps for a device +dev_pm_opp_get_opp_count - Retrieve the number of available opps for a device Example: Lets say a co-processor in the SoC needs to know the available frequencies in a table, the main processor can notify as following: soc_notify_coproc_available_frequencies() { /* Do things */ rcu_read_lock(); - num_available = opp_get_opp_count(dev); + num_available = dev_pm_opp_get_opp_count(dev); speeds = kzalloc(sizeof(u32) * num_available, GFP_KERNEL); /* populate the table in increasing order */ freq = 0; - while (!IS_ERR(opp = opp_find_freq_ceil(dev, &freq))) { + while (!IS_ERR(opp = dev_pm_opp_find_freq_ceil(dev, &freq))) { speeds[i] = freq; freq++; i++; @@ -313,7 +313,7 @@ opp_get_opp_count - Retrieve the number of available opps for a device 6. Cpufreq Table Generation =========================== -opp_init_cpufreq_table - cpufreq framework typically is initialized with +dev_pm_opp_init_cpufreq_table - cpufreq framework typically is initialized with cpufreq_frequency_table_cpuinfo which is provided with the list of frequencies that are available for operation. This function provides a ready to use conversion routine to translate the OPP layer's internal @@ -326,7 +326,7 @@ opp_init_cpufreq_table - cpufreq framework typically is initialized with soc_pm_init() { /* Do things */ - r = opp_init_cpufreq_table(dev, &freq_table); + r = dev_pm_opp_init_cpufreq_table(dev, &freq_table); if (!r) cpufreq_frequency_table_cpuinfo(policy, freq_table); /* Do other things */ @@ -336,7 +336,7 @@ opp_init_cpufreq_table - cpufreq framework typically is initialized with addition to CONFIG_PM as power management feature is required to dynamically scale voltage and frequency in a system. -opp_free_cpufreq_table - Free up the table allocated by opp_init_cpufreq_table +dev_pm_opp_free_cpufreq_table - Free up the table allocated by dev_pm_opp_init_cpufreq_table 7. Data Structures ================== @@ -366,8 +366,8 @@ struct opp - The internal data structure of OPP library which is used to identifier for OPP in the interactions with OPP layer. WARNING: The struct opp pointer should not be parsed or modified by the - users. The defaults of for an instance is populated by opp_add, but the - availability of the OPP can be modified by opp_enable/disable functions. + users. The defaults of for an instance is populated by dev_pm_opp_add, but the + availability of the OPP can be modified by dev_pm_opp_enable/disable functions. struct device - This is used to identify a domain to the OPP layer. The nature of the device and it's implementation is left to the user of @@ -377,19 +377,19 @@ Overall, in a simplistic view, the data structure operations is represented as following: Initialization / modification: - +-----+ /- opp_enable -opp_add --> | opp | <------- - | +-----+ \- opp_disable + +-----+ /- dev_pm_opp_enable +dev_pm_opp_add --> | opp | <------- + | +-----+ \- dev_pm_opp_disable \-------> domain_info(device) Search functions: - /-- opp_find_freq_ceil ---\ +-----+ -domain_info<---- opp_find_freq_exact -----> | opp | - \-- opp_find_freq_floor ---/ +-----+ + /-- dev_pm_opp_find_freq_ceil ---\ +-----+ +domain_info<---- dev_pm_opp_find_freq_exact -----> | opp | + \-- dev_pm_opp_find_freq_floor ---/ +-----+ Retrieval functions: -+-----+ /- opp_get_voltage ++-----+ /- dev_pm_opp_get_voltage | opp | <--- -+-----+ \- opp_get_freq ++-----+ \- dev_pm_opp_get_freq -domain_info <- opp_get_opp_count +domain_info <- dev_pm_opp_get_opp_count diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c index 90372a21087..d7ecc90e6bb 100644 --- a/arch/arm/mach-imx/mach-imx6q.c +++ b/arch/arm/mach-imx/mach-imx6q.c @@ -226,7 +226,7 @@ static void __init imx6q_opp_check_1p2ghz(struct device *cpu_dev) val = readl_relaxed(base + OCOTP_CFG3); val >>= OCOTP_CFG3_SPEED_SHIFT; if ((val & 0x3) != OCOTP_CFG3_SPEED_1P2GHZ) - if (opp_disable(cpu_dev, 1200000000)) + if (dev_pm_opp_disable(cpu_dev, 1200000000)) pr_warn("failed to disable 1.2 GHz OPP\n"); put_node: diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c index f26918467ef..33969e5a149 100644 --- a/arch/arm/mach-omap2/board-omap3beagle.c +++ b/arch/arm/mach-omap2/board-omap3beagle.c @@ -522,11 +522,11 @@ static int __init beagle_opp_init(void) return -ENODEV; } /* Enable MPU 1GHz and lower opps */ - r = opp_enable(mpu_dev, 800000000); + r = dev_pm_opp_enable(mpu_dev, 800000000); /* TODO: MPU 1GHz needs SR and ABB */ /* Enable IVA 800MHz and lower opps */ - r |= opp_enable(iva_dev, 660000000); + r |= dev_pm_opp_enable(iva_dev, 660000000); /* TODO: DSP 800MHz needs SR and ABB */ if (r) { pr_err("%s: failed to enable higher opp %d\n", @@ -535,8 +535,8 @@ static int __init beagle_opp_init(void) * Cleanup - disable the higher freqs - we dont care * about the results */ - opp_disable(mpu_dev, 800000000); - opp_disable(iva_dev, 660000000); + dev_pm_opp_disable(mpu_dev, 800000000); + dev_pm_opp_disable(iva_dev, 660000000); } } return 0; diff --git a/arch/arm/mach-omap2/opp.c b/arch/arm/mach-omap2/opp.c index bd41d59a7ca..7b04637b13c 100644 --- a/arch/arm/mach-omap2/opp.c +++ b/arch/arm/mach-omap2/opp.c @@ -81,14 +81,14 @@ int __init omap_init_opp_table(struct omap_opp_def *opp_def, dev = &oh->od->pdev->dev; } - r = opp_add(dev, opp_def->freq, opp_def->u_volt); + r = dev_pm_opp_add(dev, opp_def->freq, opp_def->u_volt); if (r) { dev_err(dev, "%s: add OPP %ld failed for %s [%d] result=%d\n", __func__, opp_def->freq, opp_def->hwmod_name, i, r); } else { if (!opp_def->default_available) - r = opp_disable(dev, opp_def->freq); + r = dev_pm_opp_disable(dev, opp_def->freq); if (r) dev_err(dev, "%s: disable %ld failed for %s [%d] result=%d\n", __func__, opp_def->freq, diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c index e742118fcfd..937744c3679 100644 --- a/arch/arm/mach-omap2/pm.c +++ b/arch/arm/mach-omap2/pm.c @@ -172,7 +172,7 @@ static int __init omap2_set_init_voltage(char *vdd_name, char *clk_name, clk_put(clk); rcu_read_lock(); - opp = opp_find_freq_ceil(dev, &freq); + opp = dev_pm_opp_find_freq_ceil(dev, &freq); if (IS_ERR(opp)) { rcu_read_unlock(); pr_err("%s: unable to find boot up OPP for vdd_%s\n", @@ -180,7 +180,7 @@ static int __init omap2_set_init_voltage(char *vdd_name, char *clk_name, goto exit; } - bootup_volt = opp_get_voltage(opp); + bootup_volt = dev_pm_opp_get_voltage(opp); rcu_read_unlock(); if (!bootup_volt) { pr_err("%s: unable to find voltage corresponding to the bootup OPP for vdd_%s\n", diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c index ef89897c604..00c6a449cde 100644 --- a/drivers/base/power/opp.c +++ b/drivers/base/power/opp.c @@ -136,7 +136,7 @@ static struct device_opp *find_device_opp(struct device *dev) } /** - * opp_get_voltage() - Gets the voltage corresponding to an available opp + * dev_pm_opp_get_voltage() - Gets the voltage corresponding to an available opp * @opp: opp for which voltage has to be returned for * * Return voltage in micro volt corresponding to the opp, else @@ -150,7 +150,7 @@ static struct device_opp *find_device_opp(struct device *dev) * prior to unlocking with rcu_read_unlock() to maintain the integrity of the * pointer. */ -unsigned long opp_get_voltage(struct opp *opp) +unsigned long dev_pm_opp_get_voltage(struct opp *opp) { struct opp *tmp_opp; unsigned long v = 0; @@ -163,10 +163,10 @@ unsigned long opp_get_voltage(struct opp *opp) return v; } -EXPORT_SYMBOL_GPL(opp_get_voltage); +EXPORT_SYMBOL_GPL(dev_pm_opp_get_voltage); /** - * opp_get_freq() - Gets the frequency corresponding to an available opp + * dev_pm_opp_get_freq() - Gets the frequency corresponding to an available opp * @opp: opp for which frequency has to be returned for * * Return frequency in hertz corresponding to the opp, else @@ -180,7 +180,7 @@ EXPORT_SYMBOL_GPL(opp_get_voltage); * prior to unlocking with rcu_read_unlock() to maintain the integrity of the * pointer. */ -unsigned long opp_get_freq(struct opp *opp) +unsigned long dev_pm_opp_get_freq(struct opp *opp) { struct opp *tmp_opp; unsigned long f = 0; @@ -193,10 +193,10 @@ unsigned long opp_get_freq(struct opp *opp) return f; } -EXPORT_SYMBOL_GPL(opp_get_freq); +EXPORT_SYMBOL_GPL(dev_pm_opp_get_freq); /** - * opp_get_opp_count() - Get number of opps available in the opp list + * dev_pm_opp_get_opp_count() - Get number of opps available in the opp list * @dev: device for which we do this operation * * This function returns the number of available opps if there are any, @@ -206,7 +206,7 @@ EXPORT_SYMBOL_GPL(opp_get_freq); * internally references two RCU protected structures: device_opp and opp which * are safe as long as we are under a common RCU locked section. */ -int opp_get_opp_count(struct device *dev) +int dev_pm_opp_get_opp_count(struct device *dev) { struct device_opp *dev_opp; struct opp *temp_opp; @@ -226,10 +226,10 @@ int opp_get_opp_count(struct device *dev) return count; } -EXPORT_SYMBOL_GPL(opp_get_opp_count); +EXPORT_SYMBOL_GPL(dev_pm_opp_get_opp_count); /** - * opp_find_freq_exact() - search for an exact frequency + * dev_pm_opp_find_freq_exact() - search for an exact frequency * @dev: device for which we do this operation * @freq: frequency to search for * @available: true/false - match for available opp @@ -254,7 +254,7 @@ EXPORT_SYMBOL_GPL(opp_get_opp_count); * under the locked area. The pointer returned must be used prior to unlocking * with rcu_read_unlock() to maintain the integrity of the pointer. */ -struct opp *opp_find_freq_exact(struct device *dev, unsigned long freq, +struct opp *dev_pm_opp_find_freq_exact(struct device *dev, unsigned long freq, bool available) { struct device_opp *dev_opp; @@ -277,10 +277,10 @@ struct opp *opp_find_freq_exact(struct device *dev, unsigned long freq, return opp; } -EXPORT_SYMBOL_GPL(opp_find_freq_exact); +EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_exact); /** - * opp_find_freq_ceil() - Search for an rounded ceil freq + * dev_pm_opp_find_freq_ceil() - Search for an rounded ceil freq * @dev: device for which we do this operation * @freq: Start frequency * @@ -300,7 +300,7 @@ EXPORT_SYMBOL_GPL(opp_find_freq_exact); * under the locked area. The pointer returned must be used prior to unlocking * with rcu_read_unlock() to maintain the integrity of the pointer. */ -struct opp *opp_find_freq_ceil(struct device *dev, unsigned long *freq) +struct opp *dev_pm_opp_find_freq_ceil(struct device *dev, unsigned long *freq) { struct device_opp *dev_opp; struct opp *temp_opp, *opp = ERR_PTR(-ERANGE); @@ -324,10 +324,10 @@ struct opp *opp_find_freq_ceil(struct device *dev, unsigned long *freq) return opp; } -EXPORT_SYMBOL_GPL(opp_find_freq_ceil); +EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_ceil); /** - * opp_find_freq_floor() - Search for a rounded floor freq + * dev_pm_opp_find_freq_floor() - Search for a rounded floor freq * @dev: device for which we do this operation * @freq: Start frequency * @@ -347,7 +347,7 @@ EXPORT_SYMBOL_GPL(opp_find_freq_ceil); * under the locked area. The pointer returned must be used prior to unlocking * with rcu_read_unlock() to maintain the integrity of the pointer. */ -struct opp *opp_find_freq_floor(struct device *dev, unsigned long *freq) +struct opp *dev_pm_opp_find_freq_floor(struct device *dev, unsigned long *freq) { struct device_opp *dev_opp; struct opp *temp_opp, *opp = ERR_PTR(-ERANGE); @@ -375,17 +375,17 @@ struct opp *opp_find_freq_floor(struct device *dev, unsigned long *freq) return opp; } -EXPORT_SYMBOL_GPL(opp_find_freq_floor); +EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_floor); /** - * opp_add() - Add an OPP table from a table definitions + * dev_pm_opp_add() - Add an OPP table from a table definitions * @dev: device for which we do this operation * @freq: Frequency in Hz for this OPP * @u_volt: Voltage in uVolts for this OPP * * This function adds an opp definition to the opp list and returns status. * The opp is made available by default and it can be controlled using - * opp_enable/disable functions. + * dev_pm_opp_enable/disable functions. * * Locking: The internal device_opp and opp structures are RCU protected. * Hence this function internally uses RCU updater strategy with mutex locks @@ -393,7 +393,7 @@ EXPORT_SYMBOL_GPL(opp_find_freq_floor); * that this function is *NOT* called under RCU protection or in contexts where * mutex cannot be locked. */ -int opp_add(struct device *dev, unsigned long freq, unsigned long u_volt) +int dev_pm_opp_add(struct device *dev, unsigned long freq, unsigned long u_volt) { struct device_opp *dev_opp = NULL; struct opp *opp, *new_opp; @@ -460,7 +460,7 @@ int opp_add(struct device *dev, unsigned long freq, unsigned long u_volt) srcu_notifier_call_chain(&dev_opp->head, OPP_EVENT_ADD, new_opp); return 0; } -EXPORT_SYMBOL_GPL(opp_add); +EXPORT_SYMBOL_GPL(dev_pm_opp_add); /** * opp_set_availability() - helper to set the availability of an opp @@ -552,13 +552,13 @@ unlock: } /** - * opp_enable() - Enable a specific OPP + * dev_pm_opp_enable() - Enable a specific OPP * @dev: device for which we do this operation * @freq: OPP frequency to enable * * Enables a provided opp. If the operation is valid, this returns 0, else the * corresponding error value. It is meant to be used for users an OPP available - * after being temporarily made unavailable with opp_disable. + * after being temporarily made unavailable with dev_pm_opp_disable. * * Locking: The internal device_opp and opp structures are RCU protected. * Hence this function indirectly uses RCU and mutex locks to keep the @@ -566,21 +566,21 @@ unlock: * this function is *NOT* called under RCU protection or in contexts where * mutex locking or synchronize_rcu() blocking calls cannot be used. */ -int opp_enable(struct device *dev, unsigned long freq) +int dev_pm_opp_enable(struct device *dev, unsigned long freq) { return opp_set_availability(dev, freq, true); } -EXPORT_SYMBOL_GPL(opp_enable); +EXPORT_SYMBOL_GPL(dev_pm_opp_enable); /** - * opp_disable() - Disable a specific OPP + * dev_pm_opp_disable() - Disable a specific OPP * @dev: device for which we do this operation * @freq: OPP frequency to disable * * Disables a provided opp. If the operation is valid, this returns * 0, else the corresponding error value. It is meant to be a temporary * control by users to make this OPP not available until the circumstances are - * right to make it available again (with a call to opp_enable). + * right to make it available again (with a call to dev_pm_opp_enable). * * Locking: The internal device_opp and opp structures are RCU protected. * Hence this function indirectly uses RCU and mutex locks to keep the @@ -588,15 +588,15 @@ EXPORT_SYMBOL_GPL(opp_enable); * this function is *NOT* called under RCU protection or in contexts where * mutex locking or synchronize_rcu() blocking calls cannot be used. */ -int opp_disable(struct device *dev, unsigned long freq) +int dev_pm_opp_disable(struct device *dev, unsigned long freq) { return opp_set_availability(dev, freq, false); } -EXPORT_SYMBOL_GPL(opp_disable); +EXPORT_SYMBOL_GPL(dev_pm_opp_disable); #ifdef CONFIG_CPU_FREQ /** - * opp_init_cpufreq_table() - create a cpufreq table for a device + * dev_pm_opp_init_cpufreq_table() - create a cpufreq table for a device * @dev: device for which we do this operation * @table: Cpufreq table returned back to caller * @@ -619,7 +619,7 @@ EXPORT_SYMBOL_GPL(opp_disable); * Callers should ensure that this function is *NOT* called under RCU protection * or in contexts where mutex locking cannot be used. */ -int opp_init_cpufreq_table(struct device *dev, +int dev_pm_opp_init_cpufreq_table(struct device *dev, struct cpufreq_frequency_table **table) { struct device_opp *dev_opp; @@ -639,7 +639,7 @@ int opp_init_cpufreq_table(struct device *dev, } freq_table = kzalloc(sizeof(struct cpufreq_frequency_table) * - (opp_get_opp_count(dev) + 1), GFP_KERNEL); + (dev_pm_opp_get_opp_count(dev) + 1), GFP_KERNEL); if (!freq_table) { mutex_unlock(&dev_opp_list_lock); dev_warn(dev, "%s: Unable to allocate frequency table\n", @@ -663,16 +663,16 @@ int opp_init_cpufreq_table(struct device *dev, return 0; } -EXPORT_SYMBOL_GPL(opp_init_cpufreq_table); +EXPORT_SYMBOL_GPL(dev_pm_opp_init_cpufreq_table); /** - * opp_free_cpufreq_table() - free the cpufreq table + * dev_pm_opp_free_cpufreq_table() - free the cpufreq table * @dev: device for which we do this operation * @table: table to free * - * Free up the table allocated by opp_init_cpufreq_table + * Free up the table allocated by dev_pm_opp_init_cpufreq_table */ -void opp_free_cpufreq_table(struct device *dev, +void dev_pm_opp_free_cpufreq_table(struct device *dev, struct cpufreq_frequency_table **table) { if (!table) @@ -681,14 +681,14 @@ void opp_free_cpufreq_table(struct device *dev, kfree(*table); *table = NULL; } -EXPORT_SYMBOL_GPL(opp_free_cpufreq_table); +EXPORT_SYMBOL_GPL(dev_pm_opp_free_cpufreq_table); #endif /* CONFIG_CPU_FREQ */ /** - * opp_get_notifier() - find notifier_head of the device with opp + * dev_pm_opp_get_notifier() - find notifier_head of the device with opp * @dev: device pointer used to lookup device OPPs. */ -struct srcu_notifier_head *opp_get_notifier(struct device *dev) +struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev) { struct device_opp *dev_opp = find_device_opp(dev); @@ -732,7 +732,7 @@ int of_init_opp_table(struct device *dev) unsigned long freq = be32_to_cpup(val++) * 1000; unsigned long volt = be32_to_cpup(val++); - if (opp_add(dev, freq, volt)) { + if (dev_pm_opp_add(dev, freq, volt)) { dev_warn(dev, "%s: Failed to add OPP %ld\n", __func__, freq); continue; diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c index 3549f0784af..9e82a9d5df7 100644 --- a/drivers/cpufreq/arm_big_little.c +++ b/drivers/cpufreq/arm_big_little.c @@ -98,7 +98,7 @@ static void put_cluster_clk_and_freq_table(struct device *cpu_dev) if (!atomic_dec_return(&cluster_usage[cluster])) { clk_put(clk[cluster]); - opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]); + dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]); dev_dbg(cpu_dev, "%s: cluster: %d\n", __func__, cluster); } } @@ -119,7 +119,7 @@ static int get_cluster_clk_and_freq_table(struct device *cpu_dev) goto atomic_dec; } - ret = opp_init_cpufreq_table(cpu_dev, &freq_table[cluster]); + ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table[cluster]); if (ret) { dev_err(cpu_dev, "%s: failed to init cpufreq table, cpu: %d, err: %d\n", __func__, cpu_dev->id, ret); @@ -138,7 +138,7 @@ static int get_cluster_clk_and_freq_table(struct device *cpu_dev) dev_err(cpu_dev, "%s: Failed to get clk for cpu: %d, cluster: %d\n", __func__, cpu_dev->id, cluster); ret = PTR_ERR(clk[cluster]); - opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]); + dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]); atomic_dec: atomic_dec(&cluster_usage[cluster]); diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index c522a95c0e1..af951a9cea7 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -72,7 +72,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy, if (!IS_ERR(cpu_reg)) { rcu_read_lock(); - opp = opp_find_freq_ceil(cpu_dev, &freq_Hz); + opp = dev_pm_opp_find_freq_ceil(cpu_dev, &freq_Hz); if (IS_ERR(opp)) { rcu_read_unlock(); pr_err("failed to find OPP for %ld\n", freq_Hz); @@ -80,7 +80,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy, ret = PTR_ERR(opp); goto post_notify; } - volt = opp_get_voltage(opp); + volt = dev_pm_opp_get_voltage(opp); rcu_read_unlock(); tol = volt * voltage_tolerance / 100; volt_old = regulator_get_voltage(cpu_reg); @@ -218,7 +218,7 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev) goto out_put_node; } - ret = opp_init_cpufreq_table(cpu_dev, &freq_table); + ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table); if (ret) { pr_err("failed to init cpufreq table: %d\n", ret); goto out_put_node; @@ -242,12 +242,12 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev) for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) ; rcu_read_lock(); - opp = opp_find_freq_exact(cpu_dev, + opp = dev_pm_opp_find_freq_exact(cpu_dev, freq_table[0].frequency * 1000, true); - min_uV = opp_get_voltage(opp); - opp = opp_find_freq_exact(cpu_dev, + min_uV = dev_pm_opp_get_voltage(opp); + opp = dev_pm_opp_find_freq_exact(cpu_dev, freq_table[i-1].frequency * 1000, true); - max_uV = opp_get_voltage(opp); + max_uV = dev_pm_opp_get_voltage(opp); rcu_read_unlock(); ret = regulator_set_voltage_time(cpu_reg, min_uV, max_uV); if (ret > 0) @@ -264,7 +264,7 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev) return 0; out_free_table: - opp_free_cpufreq_table(cpu_dev, &freq_table); + dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table); out_put_node: of_node_put(np); return ret; @@ -273,7 +273,7 @@ out_put_node: static int cpu0_cpufreq_remove(struct platform_device *pdev) { cpufreq_unregister_driver(&cpu0_cpufreq_driver); - opp_free_cpufreq_table(cpu_dev, &freq_table); + dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table); return 0; } diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c index be5380ecdcd..444eca74d3c 100644 --- a/drivers/cpufreq/exynos5440-cpufreq.c +++ b/drivers/cpufreq/exynos5440-cpufreq.c @@ -123,7 +123,7 @@ static int init_div_table(void) rcu_read_lock(); for (i = 0; freq_tbl[i].frequency != CPUFREQ_TABLE_END; i++) { - opp = opp_find_freq_exact(dvfs_info->dev, + opp = dev_pm_opp_find_freq_exact(dvfs_info->dev, freq_tbl[i].frequency * 1000, true); if (IS_ERR(opp)) { rcu_read_unlock(); @@ -142,7 +142,7 @@ static int init_div_table(void) << P0_7_CSCLKDEV_SHIFT; /* Calculate EMA */ - volt_id = opp_get_voltage(opp); + volt_id = dev_pm_opp_get_voltage(opp); volt_id = (MAX_VOLTAGE - volt_id) / VOLTAGE_STEP; if (volt_id < PMIC_HIGH_VOLT) { ema_div = (CPUEMA_HIGH << P0_7_CPUEMA_SHIFT) | @@ -399,13 +399,14 @@ static int exynos_cpufreq_probe(struct platform_device *pdev) goto err_put_node; } - ret = opp_init_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table); + ret = dev_pm_opp_init_cpufreq_table(dvfs_info->dev, + &dvfs_info->freq_table); if (ret) { dev_err(dvfs_info->dev, "failed to init cpufreq table: %d\n", ret); goto err_put_node; } - dvfs_info->freq_count = opp_get_opp_count(dvfs_info->dev); + dvfs_info->freq_count = dev_pm_opp_get_opp_count(dvfs_info->dev); exynos_sort_descend_freq_table(); if (of_property_read_u32(np, "clock-latency", &dvfs_info->latency)) @@ -454,7 +455,7 @@ static int exynos_cpufreq_probe(struct platform_device *pdev) return 0; err_free_table: - opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table); + dev_pm_opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table); err_put_node: of_node_put(np); dev_err(&pdev->dev, "%s: failed initialization\n", __func__); @@ -464,7 +465,7 @@ err_put_node: static int exynos_cpufreq_remove(struct platform_device *pdev) { cpufreq_unregister_driver(&exynos_driver); - opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table); + dev_pm_opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table); return 0; } diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c index c3fd2a101ca..b360549e771 100644 --- a/drivers/cpufreq/imx6q-cpufreq.c +++ b/drivers/cpufreq/imx6q-cpufreq.c @@ -70,14 +70,14 @@ static int imx6q_set_target(struct cpufreq_policy *policy, return 0; rcu_read_lock(); - opp = opp_find_freq_ceil(cpu_dev, &freq_hz); + opp = dev_pm_opp_find_freq_ceil(cpu_dev, &freq_hz); if (IS_ERR(opp)) { rcu_read_unlock(); dev_err(cpu_dev, "failed to find OPP for %ld\n", freq_hz); return PTR_ERR(opp); } - volt = opp_get_voltage(opp); + volt = dev_pm_opp_get_voltage(opp); rcu_read_unlock(); volt_old = regulator_get_voltage(arm_reg); @@ -237,14 +237,14 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev) } /* We expect an OPP table supplied by platform */ - num = opp_get_opp_count(cpu_dev); + num = dev_pm_opp_get_opp_count(cpu_dev); if (num < 0) { ret = num; dev_err(cpu_dev, "no OPP table is found: %d\n", ret); goto put_node; } - ret = opp_init_cpufreq_table(cpu_dev, &freq_table); + ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table); if (ret) { dev_err(cpu_dev, "failed to init cpufreq table: %d\n", ret); goto put_node; @@ -259,12 +259,12 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev) * same order. */ rcu_read_lock(); - opp = opp_find_freq_exact(cpu_dev, + opp = dev_pm_opp_find_freq_exact(cpu_dev, freq_table[0].frequency * 1000, true); - min_volt = opp_get_voltage(opp); - opp = opp_find_freq_exact(cpu_dev, + min_volt = dev_pm_opp_get_voltage(opp); + opp = dev_pm_opp_find_freq_exact(cpu_dev, freq_table[--num].frequency * 1000, true); - max_volt = opp_get_voltage(opp); + max_volt = dev_pm_opp_get_voltage(opp); rcu_read_unlock(); ret = regulator_set_voltage_time(arm_reg, min_volt, max_volt); if (ret > 0) @@ -292,7 +292,7 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev) return 0; free_freq_table: - opp_free_cpufreq_table(cpu_dev, &freq_table); + dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table); put_node: of_node_put(np); return ret; @@ -301,7 +301,7 @@ put_node: static int imx6q_cpufreq_remove(struct platform_device *pdev) { cpufreq_unregister_driver(&imx6q_cpufreq_driver); - opp_free_cpufreq_table(cpu_dev, &freq_table); + dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table); return 0; } diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c index f31fcfcad51..c5e31d29660 100644 --- a/drivers/cpufreq/omap-cpufreq.c +++ b/drivers/cpufreq/omap-cpufreq.c @@ -105,14 +105,14 @@ static int omap_target(struct cpufreq_policy *policy, if (mpu_reg) { rcu_read_lock(); - opp = opp_find_freq_ceil(mpu_dev, &freq); + opp = dev_pm_opp_find_freq_ceil(mpu_dev, &freq); if (IS_ERR(opp)) { rcu_read_unlock(); dev_err(mpu_dev, "%s: unable to find MPU OPP for %d\n", __func__, freqs.new); return -EINVAL; } - volt = opp_get_voltage(opp); + volt = dev_pm_opp_get_voltage(opp); rcu_read_unlock(); tol = volt * OPP_TOLERANCE / 100; volt_old = regulator_get_voltage(mpu_reg); @@ -162,7 +162,7 @@ done: static inline void freq_table_free(void) { if (atomic_dec_and_test(&freq_table_users)) - opp_free_cpufreq_table(mpu_dev, &freq_table); + dev_pm_opp_free_cpufreq_table(mpu_dev, &freq_table); } static int omap_cpu_init(struct cpufreq_policy *policy) @@ -181,7 +181,7 @@ static int omap_cpu_init(struct cpufreq_policy *policy) policy->cur = omap_getspeed(policy->cpu); if (!freq_table) - result = opp_init_cpufreq_table(mpu_dev, &freq_table); + result = dev_pm_opp_init_cpufreq_table(mpu_dev, &freq_table); if (result) { dev_err(mpu_dev, "%s: cpu%d: failed creating freq table[%d]\n", diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c index c99c00d35d3..f798edcb910 100644 --- a/drivers/devfreq/devfreq.c +++ b/drivers/devfreq/devfreq.c @@ -908,7 +908,7 @@ static ssize_t available_frequencies_show(struct device *d, rcu_read_lock(); do { - opp = opp_find_freq_ceil(dev, &freq); + opp = dev_pm_opp_find_freq_ceil(dev, &freq); if (IS_ERR(opp)) break; @@ -1036,18 +1036,18 @@ struct opp *devfreq_recommended_opp(struct device *dev, unsigned long *freq, if (flags & DEVFREQ_FLAG_LEAST_UPPER_BOUND) { /* The freq is an upper bound. opp should be lower */ - opp = opp_find_freq_floor(dev, freq); + opp = dev_pm_opp_find_freq_floor(dev, freq); /* If not available, use the closest opp */ if (opp == ERR_PTR(-ERANGE)) - opp = opp_find_freq_ceil(dev, freq); + opp = dev_pm_opp_find_freq_ceil(dev, freq); } else { /* The freq is an lower bound. opp should be higher */ - opp = opp_find_freq_ceil(dev, freq); + opp = dev_pm_opp_find_freq_ceil(dev, freq); /* If not available, use the closest opp */ if (opp == ERR_PTR(-ERANGE)) - opp = opp_find_freq_floor(dev, freq); + opp = dev_pm_opp_find_freq_floor(dev, freq); } return opp; @@ -1066,7 +1066,7 @@ int devfreq_register_opp_notifier(struct device *dev, struct devfreq *devfreq) int ret = 0; rcu_read_lock(); - nh = opp_get_notifier(dev); + nh = dev_pm_opp_get_notifier(dev); if (IS_ERR(nh)) ret = PTR_ERR(nh); rcu_read_unlock(); @@ -1092,7 +1092,7 @@ int devfreq_unregister_opp_notifier(struct device *dev, struct devfreq *devfreq) int ret = 0; rcu_read_lock(); - nh = opp_get_notifier(dev); + nh = dev_pm_opp_get_notifier(dev); if (IS_ERR(nh)) ret = PTR_ERR(nh); rcu_read_unlock(); diff --git a/drivers/devfreq/exynos/exynos4_bus.c b/drivers/devfreq/exynos/exynos4_bus.c index c5f86d8caca..33c0e05a5ff 100644 --- a/drivers/devfreq/exynos/exynos4_bus.c +++ b/drivers/devfreq/exynos/exynos4_bus.c @@ -650,8 +650,8 @@ static int exynos4_bus_target(struct device *dev, unsigned long *_freq, rcu_read_unlock(); return PTR_ERR(opp); } - new_oppinfo.rate = opp_get_freq(opp); - new_oppinfo.volt = opp_get_voltage(opp); + new_oppinfo.rate = dev_pm_opp_get_freq(opp); + new_oppinfo.volt = dev_pm_opp_get_voltage(opp); rcu_read_unlock(); freq = new_oppinfo.rate; @@ -873,7 +873,7 @@ static int exynos4210_init_tables(struct busfreq_data *data) exynos4210_busclk_table[i].volt = exynos4210_asv_volt[mgrp][i]; for (i = LV_0; i < EX4210_LV_NUM; i++) { - err = opp_add(data->dev, exynos4210_busclk_table[i].clk, + err = dev_pm_opp_add(data->dev, exynos4210_busclk_table[i].clk, exynos4210_busclk_table[i].volt); if (err) { dev_err(data->dev, "Cannot add opp entries.\n"); @@ -940,7 +940,7 @@ static int exynos4x12_init_tables(struct busfreq_data *data) } for (i = 0; i < EX4x12_LV_NUM; i++) { - ret = opp_add(data->dev, exynos4x12_mifclk_table[i].clk, + ret = dev_pm_opp_add(data->dev, exynos4x12_mifclk_table[i].clk, exynos4x12_mifclk_table[i].volt); if (ret) { dev_err(data->dev, "Fail to add opp entries.\n"); @@ -969,7 +969,7 @@ static int exynos4_busfreq_pm_notifier_event(struct notifier_block *this, data->disabled = true; rcu_read_lock(); - opp = opp_find_freq_floor(data->dev, &maxfreq); + opp = dev_pm_opp_find_freq_floor(data->dev, &maxfreq); if (IS_ERR(opp)) { rcu_read_unlock(); dev_err(data->dev, "%s: unable to find a min freq\n", @@ -977,8 +977,8 @@ static int exynos4_busfreq_pm_notifier_event(struct notifier_block *this, mutex_unlock(&data->lock); return PTR_ERR(opp); } - new_oppinfo.rate = opp_get_freq(opp); - new_oppinfo.volt = opp_get_voltage(opp); + new_oppinfo.rate = dev_pm_opp_get_freq(opp); + new_oppinfo.volt = dev_pm_opp_get_voltage(opp); rcu_read_unlock(); err = exynos4_bus_setvolt(data, &new_oppinfo, @@ -1065,15 +1065,16 @@ static int exynos4_busfreq_probe(struct platform_device *pdev) } rcu_read_lock(); - opp = opp_find_freq_floor(dev, &exynos4_devfreq_profile.initial_freq); + opp = dev_pm_opp_find_freq_floor(dev, + &exynos4_devfreq_profile.initial_freq); if (IS_ERR(opp)) { rcu_read_unlock(); dev_err(dev, "Invalid initial frequency %lu kHz.\n", exynos4_devfreq_profile.initial_freq); return PTR_ERR(opp); } - data->curr_oppinfo.rate = opp_get_freq(opp); - data->curr_oppinfo.volt = opp_get_voltage(opp); + data->curr_oppinfo.rate = dev_pm_opp_get_freq(opp); + data->curr_oppinfo.volt = dev_pm_opp_get_voltage(opp); rcu_read_unlock(); platform_set_drvdata(pdev, data); diff --git a/drivers/devfreq/exynos/exynos5_bus.c b/drivers/devfreq/exynos/exynos5_bus.c index 574b16b59be..b0e45925505 100644 --- a/drivers/devfreq/exynos/exynos5_bus.c +++ b/drivers/devfreq/exynos/exynos5_bus.c @@ -144,8 +144,8 @@ static int exynos5_busfreq_int_target(struct device *dev, unsigned long *_freq, return PTR_ERR(opp); } - freq = opp_get_freq(opp); - volt = opp_get_voltage(opp); + freq = dev_pm_opp_get_freq(opp); + volt = dev_pm_opp_get_voltage(opp); rcu_read_unlock(); old_freq = data->curr_freq; @@ -246,7 +246,7 @@ static int exynos5250_init_int_tables(struct busfreq_data_int *data) int i, err = 0; for (i = LV_0; i < _LV_END; i++) { - err = opp_add(data->dev, exynos5_int_opp_table[i].clk, + err = dev_pm_opp_add(data->dev, exynos5_int_opp_table[i].clk, exynos5_int_opp_table[i].volt); if (err) { dev_err(data->dev, "Cannot add opp entries.\n"); @@ -276,14 +276,14 @@ static int exynos5_busfreq_int_pm_notifier_event(struct notifier_block *this, data->disabled = true; rcu_read_lock(); - opp = opp_find_freq_floor(data->dev, &maxfreq); + opp = dev_pm_opp_find_freq_floor(data->dev, &maxfreq); if (IS_ERR(opp)) { rcu_read_unlock(); err = PTR_ERR(opp); goto unlock; } - freq = opp_get_freq(opp); - volt = opp_get_voltage(opp); + freq = dev_pm_opp_get_freq(opp); + volt = dev_pm_opp_get_voltage(opp); rcu_read_unlock(); err = exynos5_int_setvolt(data, volt); @@ -368,7 +368,7 @@ static int exynos5_busfreq_int_probe(struct platform_device *pdev) } rcu_read_lock(); - opp = opp_find_freq_floor(dev, + opp = dev_pm_opp_find_freq_floor(dev, &exynos5_devfreq_int_profile.initial_freq); if (IS_ERR(opp)) { rcu_read_unlock(); @@ -377,8 +377,8 @@ static int exynos5_busfreq_int_probe(struct platform_device *pdev) err = PTR_ERR(opp); goto err_opp_add; } - initial_freq = opp_get_freq(opp); - initial_volt = opp_get_voltage(opp); + initial_freq = dev_pm_opp_get_freq(opp); + initial_volt = dev_pm_opp_get_voltage(opp); rcu_read_unlock(); data->curr_freq = initial_freq; diff --git a/include/linux/opp.h b/include/linux/opp.h index 3aca2b8def3..2066ae5880c 100644 --- a/include/linux/opp.h +++ b/include/linux/opp.h @@ -27,77 +27,79 @@ enum opp_event { #if defined(CONFIG_PM_OPP) -unsigned long opp_get_voltage(struct opp *opp); +unsigned long dev_pm_opp_get_voltage(struct opp *opp); -unsigned long opp_get_freq(struct opp *opp); +unsigned long dev_pm_opp_get_freq(struct opp *opp); -int opp_get_opp_count(struct device *dev); +int dev_pm_opp_get_opp_count(struct device *dev); -struct opp *opp_find_freq_exact(struct device *dev, unsigned long freq, +struct opp *dev_pm_opp_find_freq_exact(struct device *dev, unsigned long freq, bool available); -struct opp *opp_find_freq_floor(struct device *dev, unsigned long *freq); +struct opp *dev_pm_opp_find_freq_floor(struct device *dev, unsigned long *freq); -struct opp *opp_find_freq_ceil(struct device *dev, unsigned long *freq); +struct opp *dev_pm_opp_find_freq_ceil(struct device *dev, unsigned long *freq); -int opp_add(struct device *dev, unsigned long freq, unsigned long u_volt); +int dev_pm_opp_add(struct device *dev, unsigned long freq, + unsigned long u_volt); -int opp_enable(struct device *dev, unsigned long freq); +int dev_pm_opp_enable(struct device *dev, unsigned long freq); -int opp_disable(struct device *dev, unsigned long freq); +int dev_pm_opp_disable(struct device *dev, unsigned long freq); -struct srcu_notifier_head *opp_get_notifier(struct device *dev); +struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev); #else -static inline unsigned long opp_get_voltage(struct opp *opp) +static inline unsigned long dev_pm_opp_get_voltage(struct opp *opp) { return 0; } -static inline unsigned long opp_get_freq(struct opp *opp) +static inline unsigned long dev_pm_opp_get_freq(struct opp *opp) { return 0; } -static inline int opp_get_opp_count(struct device *dev) +static inline int dev_pm_opp_get_opp_count(struct device *dev) { return 0; } -static inline struct opp *opp_find_freq_exact(struct device *dev, +static inline struct opp *dev_pm_opp_find_freq_exact(struct device *dev, unsigned long freq, bool available) { return ERR_PTR(-EINVAL); } -static inline struct opp *opp_find_freq_floor(struct device *dev, +static inline struct opp *dev_pm_opp_find_freq_floor(struct device *dev, unsigned long *freq) { return ERR_PTR(-EINVAL); } -static inline struct opp *opp_find_freq_ceil(struct device *dev, +static inline struct opp *dev_pm_opp_find_freq_ceil(struct device *dev, unsigned long *freq) { return ERR_PTR(-EINVAL); } -static inline int opp_add(struct device *dev, unsigned long freq, +static inline int dev_pm_opp_add(struct device *dev, unsigned long freq, unsigned long u_volt) { return -EINVAL; } -static inline int opp_enable(struct device *dev, unsigned long freq) +static inline int dev_pm_opp_enable(struct device *dev, unsigned long freq) { return 0; } -static inline int opp_disable(struct device *dev, unsigned long freq) +static inline int dev_pm_opp_disable(struct device *dev, unsigned long freq) { return 0; } -static inline struct srcu_notifier_head *opp_get_notifier(struct device *dev) +static inline struct srcu_notifier_head *dev_pm_opp_get_notifier( + struct device *dev) { return ERR_PTR(-EINVAL); } @@ -113,19 +115,19 @@ static inline int of_init_opp_table(struct device *dev) #endif #if defined(CONFIG_CPU_FREQ) && defined(CONFIG_PM_OPP) -int opp_init_cpufreq_table(struct device *dev, +int dev_pm_opp_init_cpufreq_table(struct device *dev, struct cpufreq_frequency_table **table); -void opp_free_cpufreq_table(struct device *dev, +void dev_pm_opp_free_cpufreq_table(struct device *dev, struct cpufreq_frequency_table **table); #else -static inline int opp_init_cpufreq_table(struct device *dev, +static inline int dev_pm_opp_init_cpufreq_table(struct device *dev, struct cpufreq_frequency_table **table) { return -EINVAL; } static inline -void opp_free_cpufreq_table(struct device *dev, +void dev_pm_opp_free_cpufreq_table(struct device *dev, struct cpufreq_frequency_table **table) { } -- cgit v1.2.3-70-g09d2 From 47d43ba73eb98d8ba731208735c899129d9849e1 Mon Sep 17 00:00:00 2001 From: Nishanth Menon Date: Thu, 19 Sep 2013 16:03:51 -0500 Subject: PM / OPP: rename data structures to dev_pm equivalents Since Operating Performance Points (OPP) data structures are specific to device specific power management, be specific and rename opp_* data structures in OPP library with dev_pm_opp_* equivalent. Affected structures are: struct opp enum opp_event Minor checkpatch warning resulting of this change was fixed as well. Reported-by: Randy Dunlap Signed-off-by: Nishanth Menon Signed-off-by: Rafael J. Wysocki --- Documentation/power/opp.txt | 4 ++-- arch/arm/mach-omap2/pm.c | 2 +- drivers/base/power/opp.c | 41 +++++++++++++++++++----------------- drivers/cpufreq/cpufreq-cpu0.c | 4 ++-- drivers/cpufreq/exynos5440-cpufreq.c | 2 +- drivers/cpufreq/imx6q-cpufreq.c | 4 ++-- drivers/cpufreq/omap-cpufreq.c | 2 +- drivers/devfreq/devfreq.c | 9 ++++---- drivers/devfreq/exynos/exynos4_bus.c | 6 +++--- drivers/devfreq/exynos/exynos5_bus.c | 6 +++--- include/linux/devfreq.h | 4 ++-- include/linux/opp.h | 29 +++++++++++++------------ 12 files changed, 60 insertions(+), 53 deletions(-) (limited to 'drivers/cpufreq') diff --git a/Documentation/power/opp.txt b/Documentation/power/opp.txt index 185367b1848..7f67e3d2c53 100644 --- a/Documentation/power/opp.txt +++ b/Documentation/power/opp.txt @@ -358,14 +358,14 @@ accessed by various functions as described above. However, the structures representing the actual OPPs and domains are internal to the OPP library itself to allow for suitable abstraction reusable across systems. -struct opp - The internal data structure of OPP library which is used to +struct dev_pm_opp - The internal data structure of OPP library which is used to represent an OPP. In addition to the freq, voltage, availability information, it also contains internal book keeping information required for the OPP library to operate on. Pointer to this structure is provided back to the users such as SoC framework to be used as a identifier for OPP in the interactions with OPP layer. - WARNING: The struct opp pointer should not be parsed or modified by the + WARNING: The struct dev_pm_opp pointer should not be parsed or modified by the users. The defaults of for an instance is populated by dev_pm_opp_add, but the availability of the OPP can be modified by dev_pm_opp_enable/disable functions. diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c index 937744c3679..92901bd4149 100644 --- a/arch/arm/mach-omap2/pm.c +++ b/arch/arm/mach-omap2/pm.c @@ -131,7 +131,7 @@ static int __init omap2_set_init_voltage(char *vdd_name, char *clk_name, { struct voltagedomain *voltdm; struct clk *clk; - struct opp *opp; + struct dev_pm_opp *opp; unsigned long freq, bootup_volt; struct device *dev; diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c index 00c6a449cde..693e14a2491 100644 --- a/drivers/base/power/opp.c +++ b/drivers/base/power/opp.c @@ -42,7 +42,7 @@ */ /** - * struct opp - Generic OPP description structure + * struct dev_pm_opp - Generic OPP description structure * @node: opp list node. The nodes are maintained throughout the lifetime * of boot. It is expected only an optimal set of OPPs are * added to the library by the SoC framework. @@ -59,7 +59,7 @@ * * This structure stores the OPP information for a given device. */ -struct opp { +struct dev_pm_opp { struct list_head node; bool available; @@ -150,9 +150,9 @@ static struct device_opp *find_device_opp(struct device *dev) * prior to unlocking with rcu_read_unlock() to maintain the integrity of the * pointer. */ -unsigned long dev_pm_opp_get_voltage(struct opp *opp) +unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp) { - struct opp *tmp_opp; + struct dev_pm_opp *tmp_opp; unsigned long v = 0; tmp_opp = rcu_dereference(opp); @@ -180,9 +180,9 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_get_voltage); * prior to unlocking with rcu_read_unlock() to maintain the integrity of the * pointer. */ -unsigned long dev_pm_opp_get_freq(struct opp *opp) +unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp) { - struct opp *tmp_opp; + struct dev_pm_opp *tmp_opp; unsigned long f = 0; tmp_opp = rcu_dereference(opp); @@ -209,7 +209,7 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_get_freq); int dev_pm_opp_get_opp_count(struct device *dev) { struct device_opp *dev_opp; - struct opp *temp_opp; + struct dev_pm_opp *temp_opp; int count = 0; dev_opp = find_device_opp(dev); @@ -254,11 +254,12 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_get_opp_count); * under the locked area. The pointer returned must be used prior to unlocking * with rcu_read_unlock() to maintain the integrity of the pointer. */ -struct opp *dev_pm_opp_find_freq_exact(struct device *dev, unsigned long freq, - bool available) +struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, + unsigned long freq, + bool available) { struct device_opp *dev_opp; - struct opp *temp_opp, *opp = ERR_PTR(-ERANGE); + struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE); dev_opp = find_device_opp(dev); if (IS_ERR(dev_opp)) { @@ -300,10 +301,11 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_exact); * under the locked area. The pointer returned must be used prior to unlocking * with rcu_read_unlock() to maintain the integrity of the pointer. */ -struct opp *dev_pm_opp_find_freq_ceil(struct device *dev, unsigned long *freq) +struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev, + unsigned long *freq) { struct device_opp *dev_opp; - struct opp *temp_opp, *opp = ERR_PTR(-ERANGE); + struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE); if (!dev || !freq) { dev_err(dev, "%s: Invalid argument freq=%p\n", __func__, freq); @@ -347,10 +349,11 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_ceil); * under the locked area. The pointer returned must be used prior to unlocking * with rcu_read_unlock() to maintain the integrity of the pointer. */ -struct opp *dev_pm_opp_find_freq_floor(struct device *dev, unsigned long *freq) +struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev, + unsigned long *freq) { struct device_opp *dev_opp; - struct opp *temp_opp, *opp = ERR_PTR(-ERANGE); + struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE); if (!dev || !freq) { dev_err(dev, "%s: Invalid argument freq=%p\n", __func__, freq); @@ -396,11 +399,11 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_floor); int dev_pm_opp_add(struct device *dev, unsigned long freq, unsigned long u_volt) { struct device_opp *dev_opp = NULL; - struct opp *opp, *new_opp; + struct dev_pm_opp *opp, *new_opp; struct list_head *head; /* allocate new OPP node */ - new_opp = kzalloc(sizeof(struct opp), GFP_KERNEL); + new_opp = kzalloc(sizeof(*new_opp), GFP_KERNEL); if (!new_opp) { dev_warn(dev, "%s: Unable to create new OPP node\n", __func__); return -ENOMEM; @@ -485,11 +488,11 @@ static int opp_set_availability(struct device *dev, unsigned long freq, bool availability_req) { struct device_opp *tmp_dev_opp, *dev_opp = ERR_PTR(-ENODEV); - struct opp *new_opp, *tmp_opp, *opp = ERR_PTR(-ENODEV); + struct dev_pm_opp *new_opp, *tmp_opp, *opp = ERR_PTR(-ENODEV); int r = 0; /* keep the node allocated */ - new_opp = kmalloc(sizeof(struct opp), GFP_KERNEL); + new_opp = kmalloc(sizeof(*new_opp), GFP_KERNEL); if (!new_opp) { dev_warn(dev, "%s: Unable to create OPP\n", __func__); return -ENOMEM; @@ -623,7 +626,7 @@ int dev_pm_opp_init_cpufreq_table(struct device *dev, struct cpufreq_frequency_table **table) { struct device_opp *dev_opp; - struct opp *opp; + struct dev_pm_opp *opp; struct cpufreq_frequency_table *freq_table; int i = 0; diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index af951a9cea7..d73107894fe 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -44,7 +44,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) { struct cpufreq_freqs freqs; - struct opp *opp; + struct dev_pm_opp *opp; unsigned long volt = 0, volt_old = 0, tol = 0; long freq_Hz, freq_exact; unsigned int index; @@ -230,7 +230,7 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev) transition_latency = CPUFREQ_ETERNAL; if (!IS_ERR(cpu_reg)) { - struct opp *opp; + struct dev_pm_opp *opp; unsigned long min_uV, max_uV; int i; diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c index 444eca74d3c..c8b3d3950f9 100644 --- a/drivers/cpufreq/exynos5440-cpufreq.c +++ b/drivers/cpufreq/exynos5440-cpufreq.c @@ -118,7 +118,7 @@ static int init_div_table(void) struct cpufreq_frequency_table *freq_tbl = dvfs_info->freq_table; unsigned int tmp, clk_div, ema_div, freq, volt_id; int i = 0; - struct opp *opp; + struct dev_pm_opp *opp; rcu_read_lock(); for (i = 0; freq_tbl[i].frequency != CPUFREQ_TABLE_END; i++) { diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c index b360549e771..84e993dfb30 100644 --- a/drivers/cpufreq/imx6q-cpufreq.c +++ b/drivers/cpufreq/imx6q-cpufreq.c @@ -49,7 +49,7 @@ static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) { struct cpufreq_freqs freqs; - struct opp *opp; + struct dev_pm_opp *opp; unsigned long freq_hz, volt, volt_old; unsigned int index; int ret; @@ -199,7 +199,7 @@ static struct cpufreq_driver imx6q_cpufreq_driver = { static int imx6q_cpufreq_probe(struct platform_device *pdev) { struct device_node *np; - struct opp *opp; + struct dev_pm_opp *opp; unsigned long min_volt, max_volt; int num, ret; diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c index c5e31d29660..f057d423020 100644 --- a/drivers/cpufreq/omap-cpufreq.c +++ b/drivers/cpufreq/omap-cpufreq.c @@ -65,7 +65,7 @@ static int omap_target(struct cpufreq_policy *policy, unsigned int i; int r, ret = 0; struct cpufreq_freqs freqs; - struct opp *opp; + struct dev_pm_opp *opp; unsigned long freq, volt = 0, volt_old = 0, tol = 0; if (!freq_table) { diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c index f798edcb910..03530a0a804 100644 --- a/drivers/devfreq/devfreq.c +++ b/drivers/devfreq/devfreq.c @@ -902,7 +902,7 @@ static ssize_t available_frequencies_show(struct device *d, { struct devfreq *df = to_devfreq(d); struct device *dev = df->dev.parent; - struct opp *opp; + struct dev_pm_opp *opp; ssize_t count = 0; unsigned long freq = 0; @@ -1029,10 +1029,11 @@ module_exit(devfreq_exit); * under the locked area. The pointer returned must be used prior to unlocking * with rcu_read_unlock() to maintain the integrity of the pointer. */ -struct opp *devfreq_recommended_opp(struct device *dev, unsigned long *freq, - u32 flags) +struct dev_pm_opp *devfreq_recommended_opp(struct device *dev, + unsigned long *freq, + u32 flags) { - struct opp *opp; + struct dev_pm_opp *opp; if (flags & DEVFREQ_FLAG_LEAST_UPPER_BOUND) { /* The freq is an upper bound. opp should be lower */ diff --git a/drivers/devfreq/exynos/exynos4_bus.c b/drivers/devfreq/exynos/exynos4_bus.c index 33c0e05a5ff..891becd4651 100644 --- a/drivers/devfreq/exynos/exynos4_bus.c +++ b/drivers/devfreq/exynos/exynos4_bus.c @@ -639,7 +639,7 @@ static int exynos4_bus_target(struct device *dev, unsigned long *_freq, struct platform_device *pdev = container_of(dev, struct platform_device, dev); struct busfreq_data *data = platform_get_drvdata(pdev); - struct opp *opp; + struct dev_pm_opp *opp; unsigned long freq; unsigned long old_freq = data->curr_oppinfo.rate; struct busfreq_opp_info new_oppinfo; @@ -956,7 +956,7 @@ static int exynos4_busfreq_pm_notifier_event(struct notifier_block *this, { struct busfreq_data *data = container_of(this, struct busfreq_data, pm_notifier); - struct opp *opp; + struct dev_pm_opp *opp; struct busfreq_opp_info new_oppinfo; unsigned long maxfreq = ULONG_MAX; int err = 0; @@ -1020,7 +1020,7 @@ unlock: static int exynos4_busfreq_probe(struct platform_device *pdev) { struct busfreq_data *data; - struct opp *opp; + struct dev_pm_opp *opp; struct device *dev = &pdev->dev; int err = 0; diff --git a/drivers/devfreq/exynos/exynos5_bus.c b/drivers/devfreq/exynos/exynos5_bus.c index b0e45925505..d06232aa073 100644 --- a/drivers/devfreq/exynos/exynos5_bus.c +++ b/drivers/devfreq/exynos/exynos5_bus.c @@ -132,7 +132,7 @@ static int exynos5_busfreq_int_target(struct device *dev, unsigned long *_freq, struct platform_device *pdev = container_of(dev, struct platform_device, dev); struct busfreq_data_int *data = platform_get_drvdata(pdev); - struct opp *opp; + struct dev_pm_opp *opp; unsigned long old_freq, freq; unsigned long volt; @@ -262,7 +262,7 @@ static int exynos5_busfreq_int_pm_notifier_event(struct notifier_block *this, { struct busfreq_data_int *data = container_of(this, struct busfreq_data_int, pm_notifier); - struct opp *opp; + struct dev_pm_opp *opp; unsigned long maxfreq = ULONG_MAX; unsigned long freq; unsigned long volt; @@ -316,7 +316,7 @@ unlock: static int exynos5_busfreq_int_probe(struct platform_device *pdev) { struct busfreq_data_int *data; - struct opp *opp; + struct dev_pm_opp *opp; struct device *dev = &pdev->dev; struct device_node *np; unsigned long initial_freq; diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h index 5f1ab92107e..c8c995325ca 100644 --- a/include/linux/devfreq.h +++ b/include/linux/devfreq.h @@ -187,7 +187,7 @@ extern int devfreq_suspend_device(struct devfreq *devfreq); extern int devfreq_resume_device(struct devfreq *devfreq); /* Helper functions for devfreq user device driver with OPP. */ -extern struct opp *devfreq_recommended_opp(struct device *dev, +extern struct dev_pm_opp *devfreq_recommended_opp(struct device *dev, unsigned long *freq, u32 flags); extern int devfreq_register_opp_notifier(struct device *dev, struct devfreq *devfreq); @@ -238,7 +238,7 @@ static inline int devfreq_resume_device(struct devfreq *devfreq) return 0; } -static inline struct opp *devfreq_recommended_opp(struct device *dev, +static inline struct dev_pm_opp *devfreq_recommended_opp(struct device *dev, unsigned long *freq, u32 flags) { return ERR_PTR(-EINVAL); diff --git a/include/linux/opp.h b/include/linux/opp.h index 2066ae5880c..5151b005958 100644 --- a/include/linux/opp.h +++ b/include/linux/opp.h @@ -18,27 +18,30 @@ #include #include -struct opp; +struct dev_pm_opp; struct device; -enum opp_event { +enum dev_pm_opp_event { OPP_EVENT_ADD, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE, }; #if defined(CONFIG_PM_OPP) -unsigned long dev_pm_opp_get_voltage(struct opp *opp); +unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp); -unsigned long dev_pm_opp_get_freq(struct opp *opp); +unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp); int dev_pm_opp_get_opp_count(struct device *dev); -struct opp *dev_pm_opp_find_freq_exact(struct device *dev, unsigned long freq, - bool available); +struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, + unsigned long freq, + bool available); -struct opp *dev_pm_opp_find_freq_floor(struct device *dev, unsigned long *freq); +struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev, + unsigned long *freq); -struct opp *dev_pm_opp_find_freq_ceil(struct device *dev, unsigned long *freq); +struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev, + unsigned long *freq); int dev_pm_opp_add(struct device *dev, unsigned long freq, unsigned long u_volt); @@ -49,12 +52,12 @@ int dev_pm_opp_disable(struct device *dev, unsigned long freq); struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev); #else -static inline unsigned long dev_pm_opp_get_voltage(struct opp *opp) +static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp) { return 0; } -static inline unsigned long dev_pm_opp_get_freq(struct opp *opp) +static inline unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp) { return 0; } @@ -64,19 +67,19 @@ static inline int dev_pm_opp_get_opp_count(struct device *dev) return 0; } -static inline struct opp *dev_pm_opp_find_freq_exact(struct device *dev, +static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, unsigned long freq, bool available) { return ERR_PTR(-EINVAL); } -static inline struct opp *dev_pm_opp_find_freq_floor(struct device *dev, +static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev, unsigned long *freq) { return ERR_PTR(-EINVAL); } -static inline struct opp *dev_pm_opp_find_freq_ceil(struct device *dev, +static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev, unsigned long *freq) { return ERR_PTR(-EINVAL); -- cgit v1.2.3-70-g09d2 From e4db1c7439b31993a4886b273bb9235a8eea82bf Mon Sep 17 00:00:00 2001 From: Nishanth Menon Date: Thu, 19 Sep 2013 16:03:52 -0500 Subject: PM / OPP: rename header to linux/pm_opp.h Since Operating Performance Points (OPP) functions are specific to device specific power management, be specific and rename opp.h to pm_opp.h Reported-by: Randy Dunlap Signed-off-by: Nishanth Menon Signed-off-by: Rafael J. Wysocki --- Documentation/power/opp.txt | 2 +- arch/arm/mach-imx/mach-imx6q.c | 2 +- arch/arm/mach-omap2/board-omap3beagle.c | 2 +- arch/arm/mach-omap2/omap-pm.h | 2 +- arch/arm/mach-omap2/opp.c | 2 +- arch/arm/mach-omap2/pm.c | 2 +- drivers/base/power/opp.c | 2 +- drivers/cpufreq/arm_big_little.c | 2 +- drivers/cpufreq/arm_big_little_dt.c | 2 +- drivers/cpufreq/cpufreq-cpu0.c | 2 +- drivers/cpufreq/exynos5440-cpufreq.c | 2 +- drivers/cpufreq/imx6q-cpufreq.c | 2 +- drivers/cpufreq/omap-cpufreq.c | 2 +- drivers/devfreq/devfreq.c | 2 +- drivers/devfreq/exynos/exynos4_bus.c | 2 +- drivers/devfreq/exynos/exynos5_bus.c | 4 +- include/linux/devfreq.h | 2 +- include/linux/opp.h | 139 -------------------------------- include/linux/pm_opp.h | 139 ++++++++++++++++++++++++++++++++ 19 files changed, 157 insertions(+), 157 deletions(-) delete mode 100644 include/linux/opp.h create mode 100644 include/linux/pm_opp.h (limited to 'drivers/cpufreq') diff --git a/Documentation/power/opp.txt b/Documentation/power/opp.txt index 7f67e3d2c53..b8a907dc016 100644 --- a/Documentation/power/opp.txt +++ b/Documentation/power/opp.txt @@ -42,7 +42,7 @@ We can represent these as three OPPs as the following {Hz, uV} tuples: OPP library provides a set of helper functions to organize and query the OPP information. The library is located in drivers/base/power/opp.c and the header -is located in include/linux/opp.h. OPP library can be enabled by enabling +is located in include/linux/pm_opp.h. OPP library can be enabled by enabling CONFIG_PM_OPP from power management menuconfig menu. OPP library depends on CONFIG_PM as certain SoCs such as Texas Instrument's OMAP framework allows to optionally boot at a certain OPP without needing cpufreq. diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c index d7ecc90e6bb..699aabe296e 100644 --- a/arch/arm/mach-imx/mach-imx6q.c +++ b/arch/arm/mach-imx/mach-imx6q.c @@ -25,7 +25,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c index 33969e5a149..6432ab8d920 100644 --- a/arch/arm/mach-omap2/board-omap3beagle.c +++ b/arch/arm/mach-omap2/board-omap3beagle.c @@ -25,7 +25,7 @@ #include #include #include -#include +#include #include #include diff --git a/arch/arm/mach-omap2/omap-pm.h b/arch/arm/mach-omap2/omap-pm.h index 67faa7b8fe9..1d777e63e05 100644 --- a/arch/arm/mach-omap2/omap-pm.h +++ b/arch/arm/mach-omap2/omap-pm.h @@ -17,7 +17,7 @@ #include #include #include -#include +#include /* * agent_id values for use with omap_pm_set_min_bus_tput(): diff --git a/arch/arm/mach-omap2/opp.c b/arch/arm/mach-omap2/opp.c index 7b04637b13c..ec21e6eb03e 100644 --- a/arch/arm/mach-omap2/opp.c +++ b/arch/arm/mach-omap2/opp.c @@ -17,7 +17,7 @@ * GNU General Public License for more details. */ #include -#include +#include #include #include "omap_device.h" diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c index 92901bd4149..2f569b3c309 100644 --- a/arch/arm/mach-omap2/pm.c +++ b/arch/arm/mach-omap2/pm.c @@ -13,7 +13,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c index 693e14a2491..fa418741844 100644 --- a/drivers/base/power/opp.c +++ b/drivers/base/power/opp.c @@ -21,7 +21,7 @@ #include #include #include -#include +#include #include #include diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c index 9e82a9d5df7..e010fb722c6 100644 --- a/drivers/cpufreq/arm_big_little.c +++ b/drivers/cpufreq/arm_big_little.c @@ -25,7 +25,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/drivers/cpufreq/arm_big_little_dt.c b/drivers/cpufreq/arm_big_little_dt.c index 480c0bd0468..8d9d5910890 100644 --- a/drivers/cpufreq/arm_big_little_dt.c +++ b/drivers/cpufreq/arm_big_little_dt.c @@ -24,7 +24,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index d73107894fe..242d4900de4 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -17,7 +17,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c index c8b3d3950f9..d41e77769d1 100644 --- a/drivers/cpufreq/exynos5440-cpufreq.c +++ b/drivers/cpufreq/exynos5440-cpufreq.c @@ -20,7 +20,7 @@ #include #include #include -#include +#include #include #include diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c index 84e993dfb30..e4c91406660 100644 --- a/drivers/cpufreq/imx6q-cpufreq.c +++ b/drivers/cpufreq/imx6q-cpufreq.c @@ -13,7 +13,7 @@ #include #include #include -#include +#include #include #include diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c index f057d423020..20190f56594 100644 --- a/drivers/cpufreq/omap-cpufreq.c +++ b/drivers/cpufreq/omap-cpufreq.c @@ -22,7 +22,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c index 03530a0a804..2e23b12c350 100644 --- a/drivers/devfreq/devfreq.c +++ b/drivers/devfreq/devfreq.c @@ -18,7 +18,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/drivers/devfreq/exynos/exynos4_bus.c b/drivers/devfreq/exynos/exynos4_bus.c index 891becd4651..cede6f71cd6 100644 --- a/drivers/devfreq/exynos/exynos4_bus.c +++ b/drivers/devfreq/exynos/exynos4_bus.c @@ -19,7 +19,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/drivers/devfreq/exynos/exynos5_bus.c b/drivers/devfreq/exynos/exynos5_bus.c index d06232aa073..52835f12ac9 100644 --- a/drivers/devfreq/exynos/exynos5_bus.c +++ b/drivers/devfreq/exynos/exynos5_bus.c @@ -15,10 +15,10 @@ #include #include #include -#include +#include #include #include -#include +#include #include #include #include diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h index c8c995325ca..7a7cc74d7f2 100644 --- a/include/linux/devfreq.h +++ b/include/linux/devfreq.h @@ -15,7 +15,7 @@ #include #include -#include +#include #define DEVFREQ_NAME_LEN 16 diff --git a/include/linux/opp.h b/include/linux/opp.h deleted file mode 100644 index 5151b005958..00000000000 --- a/include/linux/opp.h +++ /dev/null @@ -1,139 +0,0 @@ -/* - * Generic OPP Interface - * - * Copyright (C) 2009-2010 Texas Instruments Incorporated. - * Nishanth Menon - * Romit Dasgupta - * Kevin Hilman - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef __LINUX_OPP_H__ -#define __LINUX_OPP_H__ - -#include -#include -#include - -struct dev_pm_opp; -struct device; - -enum dev_pm_opp_event { - OPP_EVENT_ADD, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE, -}; - -#if defined(CONFIG_PM_OPP) - -unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp); - -unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp); - -int dev_pm_opp_get_opp_count(struct device *dev); - -struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, - unsigned long freq, - bool available); - -struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev, - unsigned long *freq); - -struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev, - unsigned long *freq); - -int dev_pm_opp_add(struct device *dev, unsigned long freq, - unsigned long u_volt); - -int dev_pm_opp_enable(struct device *dev, unsigned long freq); - -int dev_pm_opp_disable(struct device *dev, unsigned long freq); - -struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev); -#else -static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp) -{ - return 0; -} - -static inline unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp) -{ - return 0; -} - -static inline int dev_pm_opp_get_opp_count(struct device *dev) -{ - return 0; -} - -static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, - unsigned long freq, bool available) -{ - return ERR_PTR(-EINVAL); -} - -static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev, - unsigned long *freq) -{ - return ERR_PTR(-EINVAL); -} - -static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev, - unsigned long *freq) -{ - return ERR_PTR(-EINVAL); -} - -static inline int dev_pm_opp_add(struct device *dev, unsigned long freq, - unsigned long u_volt) -{ - return -EINVAL; -} - -static inline int dev_pm_opp_enable(struct device *dev, unsigned long freq) -{ - return 0; -} - -static inline int dev_pm_opp_disable(struct device *dev, unsigned long freq) -{ - return 0; -} - -static inline struct srcu_notifier_head *dev_pm_opp_get_notifier( - struct device *dev) -{ - return ERR_PTR(-EINVAL); -} -#endif /* CONFIG_PM_OPP */ - -#if defined(CONFIG_PM_OPP) && defined(CONFIG_OF) -int of_init_opp_table(struct device *dev); -#else -static inline int of_init_opp_table(struct device *dev) -{ - return -EINVAL; -} -#endif - -#if defined(CONFIG_CPU_FREQ) && defined(CONFIG_PM_OPP) -int dev_pm_opp_init_cpufreq_table(struct device *dev, - struct cpufreq_frequency_table **table); -void dev_pm_opp_free_cpufreq_table(struct device *dev, - struct cpufreq_frequency_table **table); -#else -static inline int dev_pm_opp_init_cpufreq_table(struct device *dev, - struct cpufreq_frequency_table **table) -{ - return -EINVAL; -} - -static inline -void dev_pm_opp_free_cpufreq_table(struct device *dev, - struct cpufreq_frequency_table **table) -{ -} -#endif /* CONFIG_CPU_FREQ */ - -#endif /* __LINUX_OPP_H__ */ diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h new file mode 100644 index 00000000000..5151b005958 --- /dev/null +++ b/include/linux/pm_opp.h @@ -0,0 +1,139 @@ +/* + * Generic OPP Interface + * + * Copyright (C) 2009-2010 Texas Instruments Incorporated. + * Nishanth Menon + * Romit Dasgupta + * Kevin Hilman + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __LINUX_OPP_H__ +#define __LINUX_OPP_H__ + +#include +#include +#include + +struct dev_pm_opp; +struct device; + +enum dev_pm_opp_event { + OPP_EVENT_ADD, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE, +}; + +#if defined(CONFIG_PM_OPP) + +unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp); + +unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp); + +int dev_pm_opp_get_opp_count(struct device *dev); + +struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, + unsigned long freq, + bool available); + +struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev, + unsigned long *freq); + +struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev, + unsigned long *freq); + +int dev_pm_opp_add(struct device *dev, unsigned long freq, + unsigned long u_volt); + +int dev_pm_opp_enable(struct device *dev, unsigned long freq); + +int dev_pm_opp_disable(struct device *dev, unsigned long freq); + +struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev); +#else +static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp) +{ + return 0; +} + +static inline unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp) +{ + return 0; +} + +static inline int dev_pm_opp_get_opp_count(struct device *dev) +{ + return 0; +} + +static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev, + unsigned long freq, bool available) +{ + return ERR_PTR(-EINVAL); +} + +static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev, + unsigned long *freq) +{ + return ERR_PTR(-EINVAL); +} + +static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev, + unsigned long *freq) +{ + return ERR_PTR(-EINVAL); +} + +static inline int dev_pm_opp_add(struct device *dev, unsigned long freq, + unsigned long u_volt) +{ + return -EINVAL; +} + +static inline int dev_pm_opp_enable(struct device *dev, unsigned long freq) +{ + return 0; +} + +static inline int dev_pm_opp_disable(struct device *dev, unsigned long freq) +{ + return 0; +} + +static inline struct srcu_notifier_head *dev_pm_opp_get_notifier( + struct device *dev) +{ + return ERR_PTR(-EINVAL); +} +#endif /* CONFIG_PM_OPP */ + +#if defined(CONFIG_PM_OPP) && defined(CONFIG_OF) +int of_init_opp_table(struct device *dev); +#else +static inline int of_init_opp_table(struct device *dev) +{ + return -EINVAL; +} +#endif + +#if defined(CONFIG_CPU_FREQ) && defined(CONFIG_PM_OPP) +int dev_pm_opp_init_cpufreq_table(struct device *dev, + struct cpufreq_frequency_table **table); +void dev_pm_opp_free_cpufreq_table(struct device *dev, + struct cpufreq_frequency_table **table); +#else +static inline int dev_pm_opp_init_cpufreq_table(struct device *dev, + struct cpufreq_frequency_table **table) +{ + return -EINVAL; +} + +static inline +void dev_pm_opp_free_cpufreq_table(struct device *dev, + struct cpufreq_frequency_table **table) +{ +} +#endif /* CONFIG_CPU_FREQ */ + +#endif /* __LINUX_OPP_H__ */ -- cgit v1.2.3-70-g09d2 From 9c0ebcf78fde0ffa348a95a544c6d3f2dac5af65 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 25 Oct 2013 19:45:48 +0530 Subject: cpufreq: Implement light weight ->target_index() routine Currently, the prototype of cpufreq_drivers target routines is: int target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation); And most of the drivers call cpufreq_frequency_table_target() to get a valid index of their frequency table which is closest to the target_freq. And they don't use target_freq and relation after that. So, it makes sense to just do this work in cpufreq core before calling cpufreq_frequency_table_target() and simply pass index instead. But this can be done only with drivers which expose their frequency table with cpufreq core. For others we need to stick with the old prototype of target() until those drivers are converted to expose frequency tables. This patch implements the new light weight prototype for target_index() routine. It looks like this: int target_index(struct cpufreq_policy *policy, unsigned int index); CPUFreq core will call cpufreq_frequency_table_target() before calling this routine and pass index to it. Because CPUFreq core now requires to call routines present in freq_table.c CONFIG_CPU_FREQ_TABLE must be enabled all the time. This also marks target() interface as deprecated. So, that new drivers avoid using it. And Documentation is updated accordingly. It also converts existing .target() to newly defined light weight .target_index() routine for many driver. Acked-by: Hans-Christian Egtvedt Acked-by: Jesper Nilsson Acked-by: Linus Walleij Acked-by: Russell King Acked-by: David S. Miller Tested-by: Andrew Lunn Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- Documentation/cpu-freq/cpu-drivers.txt | 27 ++++++++++------ Documentation/cpu-freq/governors.txt | 4 +-- arch/arm/mach-sa1100/generic.c | 20 ------------ arch/arm/mach-sa1100/generic.h | 2 -- drivers/cpufreq/acpi-cpufreq.c | 21 ++++--------- drivers/cpufreq/arm_big_little.c | 17 +++------- drivers/cpufreq/at32ap-cpufreq.c | 23 +++----------- drivers/cpufreq/blackfin-cpufreq.c | 17 +++------- drivers/cpufreq/cpufreq-cpu0.c | 17 ++-------- drivers/cpufreq/cpufreq.c | 57 +++++++++++++++++++++++++++------- drivers/cpufreq/cris-artpec3-cpufreq.c | 18 ++--------- drivers/cpufreq/cris-etraxfs-cpufreq.c | 17 ++-------- drivers/cpufreq/davinci-cpufreq.c | 16 ++-------- drivers/cpufreq/dbx500-cpufreq.c | 16 ++-------- drivers/cpufreq/e_powersaver.c | 17 ++-------- drivers/cpufreq/elanfreq.c | 34 ++------------------ drivers/cpufreq/exynos-cpufreq.c | 21 ++----------- drivers/cpufreq/exynos5440-cpufreq.c | 21 +++---------- drivers/cpufreq/ia64-acpi-cpufreq.c | 21 ++----------- drivers/cpufreq/imx6q-cpufreq.c | 17 ++-------- drivers/cpufreq/kirkwood-cpufreq.c | 19 ++---------- drivers/cpufreq/longhaul.c | 13 ++------ drivers/cpufreq/loongson2_cpufreq.c | 21 +++---------- drivers/cpufreq/maple-cpufreq.c | 16 +++------- drivers/cpufreq/omap-cpufreq.c | 31 ++---------------- drivers/cpufreq/p4-clockmod.c | 18 +++-------- drivers/cpufreq/pasemi-cpufreq.c | 12 ++----- drivers/cpufreq/pmac32-cpufreq.c | 12 ++----- drivers/cpufreq/pmac64-cpufreq.c | 17 +++------- drivers/cpufreq/powernow-k6.c | 35 +++------------------ drivers/cpufreq/powernow-k7.c | 22 +++---------- drivers/cpufreq/powernow-k8.c | 24 +++++--------- drivers/cpufreq/ppc-corenet-cpufreq.c | 15 +++------ drivers/cpufreq/ppc_cbe_cpufreq.c | 12 ++----- drivers/cpufreq/pxa2xx-cpufreq.c | 13 ++------ drivers/cpufreq/pxa3xx-cpufreq.c | 17 ++-------- drivers/cpufreq/s3c2416-cpufreq.c | 17 +++------- drivers/cpufreq/s3c64xx-cpufreq.c | 18 +++-------- drivers/cpufreq/s5pv210-cpufreq.c | 54 +++++++++----------------------- drivers/cpufreq/sa1100-cpufreq.c | 24 +++----------- drivers/cpufreq/sa1110-cpufreq.c | 26 +++------------- drivers/cpufreq/sc520_freq.c | 19 ++---------- drivers/cpufreq/sparc-us2e-cpufreq.c | 21 ++----------- drivers/cpufreq/sparc-us3-cpufreq.c | 23 ++------------ drivers/cpufreq/spear-cpufreq.c | 12 +++---- drivers/cpufreq/speedstep-centrino.c | 27 +++++----------- drivers/cpufreq/speedstep-ich.c | 24 ++++---------- drivers/cpufreq/speedstep-smi.c | 20 +++--------- drivers/cpufreq/tegra-cpufreq.c | 12 ++----- include/linux/cpufreq.h | 4 ++- 50 files changed, 242 insertions(+), 759 deletions(-) (limited to 'drivers/cpufreq') diff --git a/Documentation/cpu-freq/cpu-drivers.txt b/Documentation/cpu-freq/cpu-drivers.txt index 40282e61791..8b1a4451422 100644 --- a/Documentation/cpu-freq/cpu-drivers.txt +++ b/Documentation/cpu-freq/cpu-drivers.txt @@ -23,8 +23,8 @@ Contents: 1.1 Initialization 1.2 Per-CPU Initialization 1.3 verify -1.4 target or setpolicy? -1.5 target +1.4 target/target_index or setpolicy? +1.5 target/target_index 1.6 setpolicy 2. Frequency Table Helpers @@ -56,7 +56,8 @@ cpufreq_driver.init - A pointer to the per-CPU initialization cpufreq_driver.verify - A pointer to a "verification" function. cpufreq_driver.setpolicy _or_ -cpufreq_driver.target - See below on the differences. +cpufreq_driver.target/ +target_index - See below on the differences. And optionally @@ -66,7 +67,7 @@ cpufreq_driver.resume - A pointer to a per-CPU resume function which is called with interrupts disabled and _before_ the pre-suspend frequency and/or policy is restored by a call to - ->target or ->setpolicy. + ->target/target_index or ->setpolicy. cpufreq_driver.attr - A pointer to a NULL-terminated list of "struct freq_attr" which allow to @@ -103,8 +104,8 @@ policy->governor must contain the "default policy" for this CPU. A few moments later, cpufreq_driver.verify and either cpufreq_driver.setpolicy or - cpufreq_driver.target is called with - these values. + cpufreq_driver.target/target_index is called + with these values. For setting some of these values (cpuinfo.min[max]_freq, policy->min[max]), the frequency table helpers might be helpful. See the section 2 for more information @@ -133,20 +134,28 @@ range) is within policy->min and policy->max. If necessary, increase policy->max first, and only if this is no solution, decrease policy->min. -1.4 target or setpolicy? +1.4 target/target_index or setpolicy? ---------------------------- Most cpufreq drivers or even most cpu frequency scaling algorithms only allow the CPU to be set to one frequency. For these, you use the -->target call. +->target/target_index call. Some cpufreq-capable processors switch the frequency between certain limits on their own. These shall use the ->setpolicy call -1.4. target +1.4. target/target_index ------------- +The target_index call has two arguments: struct cpufreq_policy *policy, +and unsigned int index (into the exposed frequency table). + +The CPUfreq driver must set the new frequency when called here. The +actual frequency must be determined by freq_table[index].frequency. + +Deprecated: +---------- The target call has three arguments: struct cpufreq_policy *policy, unsigned int target_frequency, unsigned int relation. diff --git a/Documentation/cpu-freq/governors.txt b/Documentation/cpu-freq/governors.txt index 219970ba54b..77ec21574fb 100644 --- a/Documentation/cpu-freq/governors.txt +++ b/Documentation/cpu-freq/governors.txt @@ -40,7 +40,7 @@ Most cpufreq drivers (in fact, all except one, longrun) or even most cpu frequency scaling algorithms only offer the CPU to be set to one frequency. In order to offer dynamic frequency scaling, the cpufreq core must be able to tell these drivers of a "target frequency". So -these specific drivers will be transformed to offer a "->target" +these specific drivers will be transformed to offer a "->target/target_index" call instead of the existing "->setpolicy" call. For "longrun", all stays the same, though. @@ -71,7 +71,7 @@ CPU can be set to switch independently | CPU can only be set / the limits of policy->{min,max} / \ / \ - Using the ->setpolicy call, Using the ->target call, + Using the ->setpolicy call, Using the ->target/target_index call, the limits and the the frequency closest "policy" is set. to target_freq is set. It is assured that it diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c index cb4b2ca3cf6..d4ea142c4ed 100644 --- a/arch/arm/mach-sa1100/generic.c +++ b/arch/arm/mach-sa1100/generic.c @@ -62,26 +62,6 @@ struct cpufreq_frequency_table sa11x0_freq_table[NR_FREQS+1] = { { .frequency = CPUFREQ_TABLE_END, }, }; -/* rounds up(!) */ -unsigned int sa11x0_freq_to_ppcr(unsigned int khz) -{ - int i; - - for (i = 0; i < NR_FREQS; i++) - if (sa11x0_freq_table[i].frequency >= khz) - break; - - return i; -} - -unsigned int sa11x0_ppcr_to_freq(unsigned int idx) -{ - unsigned int freq = 0; - if (idx < NR_FREQS) - freq = sa11x0_freq_table[idx].frequency; - return freq; -} - unsigned int sa11x0_getspeed(unsigned int cpu) { if (cpu) diff --git a/arch/arm/mach-sa1100/generic.h b/arch/arm/mach-sa1100/generic.h index cbdfae744dc..0d92e119b36 100644 --- a/arch/arm/mach-sa1100/generic.h +++ b/arch/arm/mach-sa1100/generic.h @@ -21,9 +21,7 @@ extern void sa1110_mb_enable(void); extern void sa1110_mb_disable(void); extern struct cpufreq_frequency_table sa11x0_freq_table[]; -extern unsigned int sa11x0_freq_to_ppcr(unsigned int khz); extern unsigned int sa11x0_getspeed(unsigned int cpu); -extern unsigned int sa11x0_ppcr_to_freq(unsigned int idx); struct flash_platform_data; struct resource; diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c index a1717d7367c..889cec0a902 100644 --- a/drivers/cpufreq/acpi-cpufreq.c +++ b/drivers/cpufreq/acpi-cpufreq.c @@ -424,17 +424,17 @@ static unsigned int check_freqs(const struct cpumask *mask, unsigned int freq, } static int acpi_cpufreq_target(struct cpufreq_policy *policy, - unsigned int target_freq, unsigned int relation) + unsigned int index) { struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu); struct acpi_processor_performance *perf; struct cpufreq_freqs freqs; struct drv_cmd cmd; - unsigned int next_state = 0; /* Index into freq_table */ unsigned int next_perf_state = 0; /* Index into perf table */ int result = 0; - pr_debug("acpi_cpufreq_target %d (%d)\n", target_freq, policy->cpu); + pr_debug("acpi_cpufreq_target %d (%d)\n", + data->freq_table[index].frequency, policy->cpu); if (unlikely(data == NULL || data->acpi_data == NULL || data->freq_table == NULL)) { @@ -442,16 +442,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy, } perf = data->acpi_data; - result = cpufreq_frequency_table_target(policy, - data->freq_table, - target_freq, - relation, &next_state); - if (unlikely(result)) { - result = -ENODEV; - goto out; - } - - next_perf_state = data->freq_table[next_state].driver_data; + next_perf_state = data->freq_table[index].driver_data; if (perf->state == next_perf_state) { if (unlikely(data->resume)) { pr_debug("Called after resume, resetting to P%d\n", @@ -493,7 +484,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy, cmd.mask = cpumask_of(policy->cpu); freqs.old = perf->states[perf->state].core_frequency * 1000; - freqs.new = data->freq_table[next_state].frequency; + freqs.new = data->freq_table[index].frequency; cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); drv_write(&cmd); @@ -923,7 +914,7 @@ static struct freq_attr *acpi_cpufreq_attr[] = { static struct cpufreq_driver acpi_cpufreq_driver = { .verify = cpufreq_generic_frequency_table_verify, - .target = acpi_cpufreq_target, + .target_index = acpi_cpufreq_target, .bios_limit = acpi_processor_get_bios_limit, .init = acpi_cpufreq_cpu_init, .exit = acpi_cpufreq_cpu_exit, diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c index 086f7c17ff5..163e3378fe1 100644 --- a/drivers/cpufreq/arm_big_little.c +++ b/drivers/cpufreq/arm_big_little.c @@ -49,28 +49,21 @@ static unsigned int bL_cpufreq_get(unsigned int cpu) /* Set clock frequency */ static int bL_cpufreq_set_target(struct cpufreq_policy *policy, - unsigned int target_freq, unsigned int relation) + unsigned int index) { struct cpufreq_freqs freqs; - u32 cpu = policy->cpu, freq_tab_idx, cur_cluster; + u32 cpu = policy->cpu, cur_cluster; int ret = 0; cur_cluster = cpu_to_cluster(policy->cpu); freqs.old = bL_cpufreq_get(policy->cpu); - - /* Determine valid target frequency using freq_table */ - cpufreq_frequency_table_target(policy, freq_table[cur_cluster], - target_freq, relation, &freq_tab_idx); - freqs.new = freq_table[cur_cluster][freq_tab_idx].frequency; + freqs.new = freq_table[cur_cluster][index].frequency; pr_debug("%s: cpu: %d, cluster: %d, oldfreq: %d, target freq: %d, new freq: %d\n", - __func__, cpu, cur_cluster, freqs.old, target_freq, + __func__, cpu, cur_cluster, freqs.old, freqs.new, freqs.new); - if (freqs.old == freqs.new) - return 0; - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); ret = clk_set_rate(clk[cur_cluster], freqs.new * 1000); @@ -200,7 +193,7 @@ static struct cpufreq_driver bL_cpufreq_driver = { .flags = CPUFREQ_STICKY | CPUFREQ_HAVE_GOVERNOR_PER_POLICY, .verify = cpufreq_generic_frequency_table_verify, - .target = bL_cpufreq_set_target, + .target_index = bL_cpufreq_set_target, .get = bL_cpufreq_get, .init = bL_cpufreq_init, .exit = bL_cpufreq_exit, diff --git a/drivers/cpufreq/at32ap-cpufreq.c b/drivers/cpufreq/at32ap-cpufreq.c index 7439deddd5c..81d07527bde 100644 --- a/drivers/cpufreq/at32ap-cpufreq.c +++ b/drivers/cpufreq/at32ap-cpufreq.c @@ -35,25 +35,12 @@ static unsigned int at32_get_speed(unsigned int cpu) static unsigned int ref_freq; static unsigned long loops_per_jiffy_ref; -static int at32_set_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) +static int at32_set_target(struct cpufreq_policy *policy, unsigned int index) { struct cpufreq_freqs freqs; - long freq; - - /* Convert target_freq from kHz to Hz */ - freq = clk_round_rate(cpuclk, target_freq * 1000); - - /* Check if policy->min <= new_freq <= policy->max */ - if(freq < (policy->min * 1000) || freq > (policy->max * 1000)) - return -EINVAL; - - pr_debug("cpufreq: requested frequency %u Hz\n", target_freq * 1000); freqs.old = at32_get_speed(0); - freqs.new = (freq + 500) / 1000; - freqs.flags = 0; + freqs.new = freq_table[index].frequency; if (!ref_freq) { ref_freq = freqs.old; @@ -64,13 +51,13 @@ static int at32_set_target(struct cpufreq_policy *policy, if (freqs.old < freqs.new) boot_cpu_data.loops_per_jiffy = cpufreq_scale( loops_per_jiffy_ref, ref_freq, freqs.new); - clk_set_rate(cpuclk, freq); + clk_set_rate(cpuclk, freqs.new * 1000); if (freqs.new < freqs.old) boot_cpu_data.loops_per_jiffy = cpufreq_scale( loops_per_jiffy_ref, ref_freq, freqs.new); cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - pr_debug("cpufreq: set frequency %lu Hz\n", freq); + pr_debug("cpufreq: set frequency %u Hz\n", freqs.new * 1000); return 0; } @@ -139,7 +126,7 @@ static struct cpufreq_driver at32_driver = { .name = "at32ap", .init = at32_cpufreq_driver_init, .verify = cpufreq_generic_frequency_table_verify, - .target = at32_set_target, + .target_index = at32_set_target, .get = at32_get_speed, .flags = CPUFREQ_STICKY, }; diff --git a/drivers/cpufreq/blackfin-cpufreq.c b/drivers/cpufreq/blackfin-cpufreq.c index 0bc9e8c2c79..12528b28d45 100644 --- a/drivers/cpufreq/blackfin-cpufreq.c +++ b/drivers/cpufreq/blackfin-cpufreq.c @@ -127,14 +127,11 @@ unsigned long cpu_set_cclk(int cpu, unsigned long new) } #endif -static int bfin_target(struct cpufreq_policy *policy, - unsigned int target_freq, unsigned int relation) +static int bfin_target(struct cpufreq_policy *policy, unsigned int index) { #ifndef CONFIG_BF60x unsigned int plldiv; #endif - unsigned int index; - unsigned long cclk_hz; struct cpufreq_freqs freqs; static unsigned long lpj_ref; static unsigned int lpj_ref_freq; @@ -144,17 +141,11 @@ static int bfin_target(struct cpufreq_policy *policy, cycles_t cycles; #endif - if (cpufreq_frequency_table_target(policy, bfin_freq_table, target_freq, - relation, &index)) - return -EINVAL; - - cclk_hz = bfin_freq_table[index].frequency; - freqs.old = bfin_getfreq_khz(0); - freqs.new = cclk_hz; + freqs.new = bfin_freq_table[index].frequency; pr_debug("cpufreq: changing cclk to %lu; target = %u, oldfreq = %u\n", - cclk_hz, target_freq, freqs.old); + freqs.new, freqs.new, freqs.old); cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); #ifndef CONFIG_BF60x @@ -209,7 +200,7 @@ static int __bfin_cpu_init(struct cpufreq_policy *policy) static struct cpufreq_driver bfin_driver = { .verify = cpufreq_generic_frequency_table_verify, - .target = bfin_target, + .target_index = bfin_target, .get = bfin_getfreq_khz, .init = __bfin_cpu_init, .exit = cpufreq_generic_exit, diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index 33ab6504c44..4dbe7efd86e 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -35,24 +35,14 @@ static unsigned int cpu0_get_speed(unsigned int cpu) return clk_get_rate(cpu_clk) / 1000; } -static int cpu0_set_target(struct cpufreq_policy *policy, - unsigned int target_freq, unsigned int relation) +static int cpu0_set_target(struct cpufreq_policy *policy, unsigned int index) { struct cpufreq_freqs freqs; struct dev_pm_opp *opp; unsigned long volt = 0, volt_old = 0, tol = 0; long freq_Hz, freq_exact; - unsigned int index; int ret; - ret = cpufreq_frequency_table_target(policy, freq_table, target_freq, - relation, &index); - if (ret) { - pr_err("failed to match target freqency %d: %d\n", - target_freq, ret); - return ret; - } - freq_Hz = clk_round_rate(cpu_clk, freq_table[index].frequency * 1000); if (freq_Hz < 0) freq_Hz = freq_table[index].frequency * 1000; @@ -60,9 +50,6 @@ static int cpu0_set_target(struct cpufreq_policy *policy, freqs.new = freq_Hz / 1000; freqs.old = clk_get_rate(cpu_clk) / 1000; - if (freqs.old == freqs.new) - return 0; - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); if (!IS_ERR(cpu_reg)) { @@ -128,7 +115,7 @@ static int cpu0_cpufreq_init(struct cpufreq_policy *policy) static struct cpufreq_driver cpu0_cpufreq_driver = { .flags = CPUFREQ_STICKY, .verify = cpufreq_generic_frequency_table_verify, - .target = cpu0_set_target, + .target_index = cpu0_set_target, .get = cpu0_get_speed, .init = cpu0_cpufreq_init, .exit = cpufreq_generic_exit, diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index ec391d7f010..87ed83a6c89 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -47,6 +47,11 @@ static LIST_HEAD(cpufreq_policy_list); static DEFINE_PER_CPU(char[CPUFREQ_NAME_LEN], cpufreq_cpu_governor); #endif +static inline bool has_target(void) +{ + return cpufreq_driver->target_index || cpufreq_driver->target; +} + /* * cpu_policy_rwsem is a per CPU reader-writer semaphore designed to cure * all cpufreq/hotplug/workqueue/etc related lock issues. @@ -392,7 +397,7 @@ static int cpufreq_parse_governor(char *str_governor, unsigned int *policy, *policy = CPUFREQ_POLICY_POWERSAVE; err = 0; } - } else if (cpufreq_driver->target) { + } else if (has_target()) { struct cpufreq_governor *t; mutex_lock(&cpufreq_governor_mutex); @@ -550,7 +555,7 @@ static ssize_t show_scaling_available_governors(struct cpufreq_policy *policy, ssize_t i = 0; struct cpufreq_governor *t; - if (!cpufreq_driver->target) { + if (!has_target()) { i += sprintf(buf, "performance powersave"); goto out; } @@ -835,7 +840,7 @@ static int cpufreq_add_dev_interface(struct cpufreq_policy *policy, if (ret) goto err_out_kobj_put; } - if (cpufreq_driver->target) { + if (has_target()) { ret = sysfs_create_file(&policy->kobj, &scaling_cur_freq.attr); if (ret) goto err_out_kobj_put; @@ -884,10 +889,10 @@ static int cpufreq_add_policy_cpu(struct cpufreq_policy *policy, unsigned int cpu, struct device *dev, bool frozen) { - int ret = 0, has_target = !!cpufreq_driver->target; + int ret = 0; unsigned long flags; - if (has_target) { + if (has_target()) { ret = __cpufreq_governor(policy, CPUFREQ_GOV_STOP); if (ret) { pr_err("%s: Failed to stop governor\n", __func__); @@ -905,7 +910,7 @@ static int cpufreq_add_policy_cpu(struct cpufreq_policy *policy, unlock_policy_rwsem_write(policy->cpu); - if (has_target) { + if (has_target()) { if ((ret = __cpufreq_governor(policy, CPUFREQ_GOV_START)) || (ret = __cpufreq_governor(policy, CPUFREQ_GOV_LIMITS))) { pr_err("%s: Failed to start governor\n", __func__); @@ -1215,7 +1220,7 @@ static int __cpufreq_remove_dev_prepare(struct device *dev, return -EINVAL; } - if (cpufreq_driver->target) { + if (has_target()) { ret = __cpufreq_governor(policy, CPUFREQ_GOV_STOP); if (ret) { pr_err("%s: Failed to stop governor\n", __func__); @@ -1280,7 +1285,7 @@ static int __cpufreq_remove_dev_finish(struct device *dev, /* If cpu is last user of policy, free policy */ if (cpus == 1) { - if (cpufreq_driver->target) { + if (has_target()) { ret = __cpufreq_governor(policy, CPUFREQ_GOV_POLICY_EXIT); if (ret) { @@ -1323,7 +1328,7 @@ static int __cpufreq_remove_dev_finish(struct device *dev, if (!frozen) cpufreq_policy_free(policy); } else { - if (cpufreq_driver->target) { + if (has_target()) { if ((ret = __cpufreq_governor(policy, CPUFREQ_GOV_START)) || (ret = __cpufreq_governor(policy, CPUFREQ_GOV_LIMITS))) { pr_err("%s: Failed to start governor\n", @@ -1694,12 +1699,41 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy, pr_debug("target for CPU %u: %u kHz, relation %u, requested %u kHz\n", policy->cpu, target_freq, relation, old_target_freq); + /* + * This might look like a redundant call as we are checking it again + * after finding index. But it is left intentionally for cases where + * exactly same freq is called again and so we can save on few function + * calls. + */ if (target_freq == policy->cur) return 0; if (cpufreq_driver->target) retval = cpufreq_driver->target(policy, target_freq, relation); + else if (cpufreq_driver->target_index) { + struct cpufreq_frequency_table *freq_table; + int index; + freq_table = cpufreq_frequency_get_table(policy->cpu); + if (unlikely(!freq_table)) { + pr_err("%s: Unable to find freq_table\n", __func__); + goto out; + } + + retval = cpufreq_frequency_table_target(policy, freq_table, + target_freq, relation, &index); + if (unlikely(retval)) { + pr_err("%s: Unable to find matching freq\n", __func__); + goto out; + } + + if (freq_table[index].frequency == policy->cur) + retval = 0; + else + retval = cpufreq_driver->target_index(policy, index); + } + +out: return retval; } EXPORT_SYMBOL_GPL(__cpufreq_driver_target); @@ -2025,7 +2059,7 @@ int cpufreq_update_policy(unsigned int cpu) pr_debug("Driver did not initialize current freq"); policy->cur = new_policy.cur; } else { - if (policy->cur != new_policy.cur && cpufreq_driver->target) + if (policy->cur != new_policy.cur && has_target()) cpufreq_out_of_sync(cpu, policy->cur, new_policy.cur); } @@ -2103,7 +2137,8 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data) return -ENODEV; if (!driver_data || !driver_data->verify || !driver_data->init || - ((!driver_data->setpolicy) && (!driver_data->target))) + !(driver_data->setpolicy || driver_data->target_index || + driver_data->target)) return -EINVAL; pr_debug("trying to register driver %s\n", driver_data->name); diff --git a/drivers/cpufreq/cris-artpec3-cpufreq.c b/drivers/cpufreq/cris-artpec3-cpufreq.c index 05fdc7e4025..841857cf156 100644 --- a/drivers/cpufreq/cris-artpec3-cpufreq.c +++ b/drivers/cpufreq/cris-artpec3-cpufreq.c @@ -27,8 +27,7 @@ static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu) return clk_ctrl.pll ? 200000 : 6000; } -static void cris_freq_set_cpu_state(struct cpufreq_policy *policy, - unsigned int state) +static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state) { struct cpufreq_freqs freqs; reg_clkgen_rw_clk_ctrl clk_ctrl; @@ -52,19 +51,6 @@ static void cris_freq_set_cpu_state(struct cpufreq_policy *policy, local_irq_enable(); cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); -}; - -static int cris_freq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int newstate = 0; - - if (cpufreq_frequency_table_target(policy, cris_freq_table, - target_freq, relation, &newstate)) - return -EINVAL; - - cris_freq_set_cpu_state(policy, newstate); return 0; } @@ -77,7 +63,7 @@ static int cris_freq_cpu_init(struct cpufreq_policy *policy) static struct cpufreq_driver cris_freq_driver = { .get = cris_freq_get_cpu_frequency, .verify = cpufreq_generic_frequency_table_verify, - .target = cris_freq_target, + .target_index = cris_freq_target, .init = cris_freq_cpu_init, .exit = cpufreq_generic_exit, .name = "cris_freq", diff --git a/drivers/cpufreq/cris-etraxfs-cpufreq.c b/drivers/cpufreq/cris-etraxfs-cpufreq.c index fac2b26932d..c58811abd96 100644 --- a/drivers/cpufreq/cris-etraxfs-cpufreq.c +++ b/drivers/cpufreq/cris-etraxfs-cpufreq.c @@ -27,8 +27,7 @@ static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu) return clk_ctrl.pll ? 200000 : 6000; } -static void cris_freq_set_cpu_state(struct cpufreq_policy *policy, - unsigned int state) +static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state) { struct cpufreq_freqs freqs; reg_config_rw_clk_ctrl clk_ctrl; @@ -52,18 +51,6 @@ static void cris_freq_set_cpu_state(struct cpufreq_policy *policy, local_irq_enable(); cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); -}; - -static int cris_freq_target(struct cpufreq_policy *policy, - unsigned int target_freq, unsigned int relation) -{ - unsigned int newstate = 0; - - if (cpufreq_frequency_table_target - (policy, cris_freq_table, target_freq, relation, &newstate)) - return -EINVAL; - - cris_freq_set_cpu_state(policy, newstate); return 0; } @@ -76,7 +63,7 @@ static int cris_freq_cpu_init(struct cpufreq_policy *policy) static struct cpufreq_driver cris_freq_driver = { .get = cris_freq_get_cpu_frequency, .verify = cpufreq_generic_frequency_table_verify, - .target = cris_freq_target, + .target_index = cris_freq_target, .init = cris_freq_cpu_init, .exit = cpufreq_generic_exit, .name = "cris_freq", diff --git a/drivers/cpufreq/davinci-cpufreq.c b/drivers/cpufreq/davinci-cpufreq.c index 972583baf9e..1f5d8a569c7 100644 --- a/drivers/cpufreq/davinci-cpufreq.c +++ b/drivers/cpufreq/davinci-cpufreq.c @@ -66,28 +66,18 @@ static unsigned int davinci_getspeed(unsigned int cpu) return clk_get_rate(cpufreq.armclk) / 1000; } -static int davinci_target(struct cpufreq_policy *policy, - unsigned int target_freq, unsigned int relation) +static int davinci_target(struct cpufreq_policy *policy, unsigned int idx) { int ret = 0; - unsigned int idx; struct cpufreq_freqs freqs; struct davinci_cpufreq_config *pdata = cpufreq.dev->platform_data; struct clk *armclk = cpufreq.armclk; freqs.old = davinci_getspeed(0); - freqs.new = clk_round_rate(armclk, target_freq * 1000) / 1000; - - if (freqs.old == freqs.new) - return ret; + freqs.new = pdata->freq_table[idx].frequency; dev_dbg(cpufreq.dev, "transition: %u --> %u\n", freqs.old, freqs.new); - ret = cpufreq_frequency_table_target(policy, pdata->freq_table, - freqs.new, relation, &idx); - if (ret) - return -EINVAL; - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); /* if moving to higher frequency, up the voltage beforehand */ @@ -148,7 +138,7 @@ static int davinci_cpu_init(struct cpufreq_policy *policy) static struct cpufreq_driver davinci_driver = { .flags = CPUFREQ_STICKY, .verify = davinci_verify_speed, - .target = davinci_target, + .target_index = davinci_target, .get = davinci_getspeed, .init = davinci_cpu_init, .exit = cpufreq_generic_exit, diff --git a/drivers/cpufreq/dbx500-cpufreq.c b/drivers/cpufreq/dbx500-cpufreq.c index a60f7693c18..238b16976be 100644 --- a/drivers/cpufreq/dbx500-cpufreq.c +++ b/drivers/cpufreq/dbx500-cpufreq.c @@ -20,23 +20,13 @@ static struct cpufreq_frequency_table *freq_table; static struct clk *armss_clk; static int dbx500_cpufreq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) + unsigned int index) { struct cpufreq_freqs freqs; - unsigned int idx; int ret; - /* Lookup the next frequency */ - if (cpufreq_frequency_table_target(policy, freq_table, target_freq, - relation, &idx)) - return -EINVAL; - freqs.old = policy->cur; - freqs.new = freq_table[idx].frequency; - - if (freqs.old == freqs.new) - return 0; + freqs.new = freq_table[index].frequency; /* pre-change notification */ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); @@ -80,7 +70,7 @@ static int dbx500_cpufreq_init(struct cpufreq_policy *policy) static struct cpufreq_driver dbx500_cpufreq_driver = { .flags = CPUFREQ_STICKY | CPUFREQ_CONST_LOOPS, .verify = cpufreq_generic_frequency_table_verify, - .target = dbx500_cpufreq_target, + .target_index = dbx500_cpufreq_target, .get = dbx500_cpufreq_getspeed, .init = dbx500_cpufreq_init, .name = "DBX500", diff --git a/drivers/cpufreq/e_powersaver.c b/drivers/cpufreq/e_powersaver.c index 2c11ce3c67b..b39c4ef60a7 100644 --- a/drivers/cpufreq/e_powersaver.c +++ b/drivers/cpufreq/e_powersaver.c @@ -168,12 +168,9 @@ postchange: return err; } -static int eps_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) +static int eps_target(struct cpufreq_policy *policy, unsigned int index) { struct eps_cpu_data *centaur; - unsigned int newstate = 0; unsigned int cpu = policy->cpu; unsigned int dest_state; int ret; @@ -182,16 +179,8 @@ static int eps_target(struct cpufreq_policy *policy, return -ENODEV; centaur = eps_cpu[cpu]; - if (unlikely(cpufreq_frequency_table_target(policy, - &eps_cpu[cpu]->freq_table[0], - target_freq, - relation, - &newstate))) { - return -EINVAL; - } - /* Make frequency transition */ - dest_state = centaur->freq_table[newstate].driver_data & 0xffff; + dest_state = centaur->freq_table[index].driver_data & 0xffff; ret = eps_set_state(centaur, policy, dest_state); if (ret) printk(KERN_ERR "eps: Timeout!\n"); @@ -418,7 +407,7 @@ static int eps_cpu_exit(struct cpufreq_policy *policy) static struct cpufreq_driver eps_driver = { .verify = cpufreq_generic_frequency_table_verify, - .target = eps_target, + .target_index = eps_target, .init = eps_cpu_init, .exit = eps_cpu_exit, .get = eps_get, diff --git a/drivers/cpufreq/elanfreq.c b/drivers/cpufreq/elanfreq.c index d91a645a27a..4ab41539514 100644 --- a/drivers/cpufreq/elanfreq.c +++ b/drivers/cpufreq/elanfreq.c @@ -105,20 +105,8 @@ static unsigned int elanfreq_get_cpu_frequency(unsigned int cpu) } -/** - * elanfreq_set_cpu_frequency: Change the CPU core frequency - * @cpu: cpu number - * @freq: frequency in kHz - * - * This function takes a frequency value and changes the CPU frequency - * according to this. Note that the frequency has to be checked by - * elanfreq_validatespeed() for correctness! - * - * There is no return value. - */ - -static void elanfreq_set_cpu_state(struct cpufreq_policy *policy, - unsigned int state) +static int elanfreq_target(struct cpufreq_policy *policy, + unsigned int state) { struct cpufreq_freqs freqs; @@ -162,25 +150,9 @@ static void elanfreq_set_cpu_state(struct cpufreq_policy *policy, local_irq_enable(); cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); -}; - - -static int elanfreq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int newstate = 0; - - if (cpufreq_frequency_table_target(policy, &elanfreq_table[0], - target_freq, relation, &newstate)) - return -EINVAL; - - elanfreq_set_cpu_state(policy, newstate); return 0; } - - /* * Module init and exit code */ @@ -237,7 +209,7 @@ __setup("elanfreq=", elanfreq_setup); static struct cpufreq_driver elanfreq_driver = { .get = elanfreq_get_cpu_frequency, .verify = cpufreq_generic_frequency_table_verify, - .target = elanfreq_target, + .target_index = elanfreq_target, .init = elanfreq_cpu_init, .exit = cpufreq_generic_exit, .name = "elanfreq", diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c index 3e4af676f43..9982fcb8225 100644 --- a/drivers/cpufreq/exynos-cpufreq.c +++ b/drivers/cpufreq/exynos-cpufreq.c @@ -65,9 +65,6 @@ static int exynos_cpufreq_scale(unsigned int target_freq) freqs.old = policy->cur; freqs.new = target_freq; - if (freqs.new == freqs.old) - goto out; - /* * The policy max have been changed so that we cannot get proper * old_index with cpufreq_frequency_table_target(). Thus, ignore @@ -151,13 +148,9 @@ out: return ret; } -static int exynos_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) +static int exynos_target(struct cpufreq_policy *policy, unsigned int index) { struct cpufreq_frequency_table *freq_table = exynos_info->freq_table; - unsigned int index; - unsigned int new_freq; int ret = 0; mutex_lock(&cpufreq_lock); @@ -165,15 +158,7 @@ static int exynos_target(struct cpufreq_policy *policy, if (frequency_locked) goto out; - if (cpufreq_frequency_table_target(policy, freq_table, - target_freq, relation, &index)) { - ret = -EINVAL; - goto out; - } - - new_freq = freq_table[index].frequency; - - ret = exynos_cpufreq_scale(new_freq); + ret = exynos_cpufreq_scale(freq_table[index].frequency); out: mutex_unlock(&cpufreq_lock); @@ -247,7 +232,7 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy) static struct cpufreq_driver exynos_driver = { .flags = CPUFREQ_STICKY, .verify = cpufreq_generic_frequency_table_verify, - .target = exynos_target, + .target_index = exynos_target, .get = exynos_getspeed, .init = exynos_cpufreq_cpu_init, .exit = cpufreq_generic_exit, diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c index 8ae5e2925bf..1bf9b060d52 100644 --- a/drivers/cpufreq/exynos5440-cpufreq.c +++ b/drivers/cpufreq/exynos5440-cpufreq.c @@ -214,27 +214,17 @@ static unsigned int exynos_getspeed(unsigned int cpu) return dvfs_info->cur_frequency; } -static int exynos_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) +static int exynos_target(struct cpufreq_policy *policy, unsigned int index) { - unsigned int index, tmp; - int ret = 0, i; + unsigned int tmp; + int i; struct cpufreq_frequency_table *freq_table = dvfs_info->freq_table; mutex_lock(&cpufreq_lock); - ret = cpufreq_frequency_table_target(policy, freq_table, - target_freq, relation, &index); - if (ret) - goto out; - freqs.old = dvfs_info->cur_frequency; freqs.new = freq_table[index].frequency; - if (freqs.old == freqs.new) - goto out; - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); /* Set the target frequency in all C0_3_PSTATE register */ @@ -245,9 +235,8 @@ static int exynos_target(struct cpufreq_policy *policy, __raw_writel(tmp, dvfs_info->base + XMU_C0_3_PSTATE + i * 4); } -out: mutex_unlock(&cpufreq_lock); - return ret; + return 0; } static void exynos_cpufreq_work(struct work_struct *work) @@ -325,7 +314,7 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy) static struct cpufreq_driver exynos_driver = { .flags = CPUFREQ_STICKY, .verify = cpufreq_generic_frequency_table_verify, - .target = exynos_target, + .target_index = exynos_target, .get = exynos_getspeed, .init = exynos_cpufreq_cpu_init, .exit = cpufreq_generic_exit, diff --git a/drivers/cpufreq/ia64-acpi-cpufreq.c b/drivers/cpufreq/ia64-acpi-cpufreq.c index 90c6598415f..4695fa22406 100644 --- a/drivers/cpufreq/ia64-acpi-cpufreq.c +++ b/drivers/cpufreq/ia64-acpi-cpufreq.c @@ -227,26 +227,11 @@ acpi_cpufreq_get ( static int acpi_cpufreq_target ( struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) + unsigned int index) { - struct cpufreq_acpi_io *data = acpi_io_data[policy->cpu]; - unsigned int next_state = 0; - unsigned int result = 0; - - pr_debug("acpi_cpufreq_setpolicy\n"); - - result = cpufreq_frequency_table_target(policy, - data->freq_table, target_freq, relation, &next_state); - if (result) - return (result); - - result = processor_set_freq(data, policy, next_state); - - return (result); + return processor_set_freq(acpi_io_data[policy->cpu], policy, index); } - static int acpi_cpufreq_cpu_init ( struct cpufreq_policy *policy) @@ -379,7 +364,7 @@ acpi_cpufreq_cpu_exit ( static struct cpufreq_driver acpi_cpufreq_driver = { .verify = cpufreq_generic_frequency_table_verify, - .target = acpi_cpufreq_target, + .target_index = acpi_cpufreq_target, .get = acpi_cpufreq_get, .init = acpi_cpufreq_cpu_init, .exit = acpi_cpufreq_cpu_exit, diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c index be23892282e..07af3b0de06 100644 --- a/drivers/cpufreq/imx6q-cpufreq.c +++ b/drivers/cpufreq/imx6q-cpufreq.c @@ -40,30 +40,17 @@ static unsigned int imx6q_get_speed(unsigned int cpu) return clk_get_rate(arm_clk) / 1000; } -static int imx6q_set_target(struct cpufreq_policy *policy, - unsigned int target_freq, unsigned int relation) +static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index) { struct cpufreq_freqs freqs; struct dev_pm_opp *opp; unsigned long freq_hz, volt, volt_old; - unsigned int index; int ret; - ret = cpufreq_frequency_table_target(policy, freq_table, target_freq, - relation, &index); - if (ret) { - dev_err(cpu_dev, "failed to match target frequency %d: %d\n", - target_freq, ret); - return ret; - } - freqs.new = freq_table[index].frequency; freq_hz = freqs.new * 1000; freqs.old = clk_get_rate(arm_clk) / 1000; - if (freqs.old == freqs.new) - return 0; - rcu_read_lock(); opp = dev_pm_opp_find_freq_ceil(cpu_dev, &freq_hz); if (IS_ERR(opp)) { @@ -159,7 +146,7 @@ static int imx6q_cpufreq_init(struct cpufreq_policy *policy) static struct cpufreq_driver imx6q_cpufreq_driver = { .verify = cpufreq_generic_frequency_table_verify, - .target = imx6q_set_target, + .target_index = imx6q_set_target, .get = imx6q_get_speed, .init = imx6q_cpufreq_init, .exit = cpufreq_generic_exit, diff --git a/drivers/cpufreq/kirkwood-cpufreq.c b/drivers/cpufreq/kirkwood-cpufreq.c index fff8653c8e9..0ae4dd7e1f2 100644 --- a/drivers/cpufreq/kirkwood-cpufreq.c +++ b/drivers/cpufreq/kirkwood-cpufreq.c @@ -55,8 +55,8 @@ static unsigned int kirkwood_cpufreq_get_cpu_frequency(unsigned int cpu) return kirkwood_freq_table[0].frequency; } -static void kirkwood_cpufreq_set_cpu_state(struct cpufreq_policy *policy, - unsigned int index) +static int kirkwood_cpufreq_target(struct cpufreq_policy *policy, + unsigned int index) { struct cpufreq_freqs freqs; unsigned int state = kirkwood_freq_table[index].driver_data; @@ -100,19 +100,6 @@ static void kirkwood_cpufreq_set_cpu_state(struct cpufreq_policy *policy, local_irq_enable(); } cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); -}; - -static int kirkwood_cpufreq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int index = 0; - - if (cpufreq_frequency_table_target(policy, kirkwood_freq_table, - target_freq, relation, &index)) - return -EINVAL; - - kirkwood_cpufreq_set_cpu_state(policy, index); return 0; } @@ -126,7 +113,7 @@ static int kirkwood_cpufreq_cpu_init(struct cpufreq_policy *policy) static struct cpufreq_driver kirkwood_cpufreq_driver = { .get = kirkwood_cpufreq_get_cpu_frequency, .verify = cpufreq_generic_frequency_table_verify, - .target = kirkwood_cpufreq_target, + .target_index = kirkwood_cpufreq_target, .init = kirkwood_cpufreq_cpu_init, .exit = cpufreq_generic_exit, .name = "kirkwood-cpufreq", diff --git a/drivers/cpufreq/longhaul.c b/drivers/cpufreq/longhaul.c index 14df4974fb4..45bafddfd8e 100644 --- a/drivers/cpufreq/longhaul.c +++ b/drivers/cpufreq/longhaul.c @@ -626,21 +626,12 @@ static void longhaul_setup_voltagescaling(void) static int longhaul_target(struct cpufreq_policy *policy, - unsigned int target_freq, unsigned int relation) + unsigned int table_index) { - unsigned int table_index = 0; unsigned int i; unsigned int dir = 0; u8 vid, current_vid; - if (cpufreq_frequency_table_target(policy, longhaul_table, target_freq, - relation, &table_index)) - return -EINVAL; - - /* Don't set same frequency again */ - if (longhaul_index == table_index) - return 0; - if (!can_scale_voltage) longhaul_setstate(policy, table_index); else { @@ -919,7 +910,7 @@ static int longhaul_cpu_init(struct cpufreq_policy *policy) static struct cpufreq_driver longhaul_driver = { .verify = cpufreq_generic_frequency_table_verify, - .target = longhaul_target, + .target_index = longhaul_target, .get = longhaul_get, .init = longhaul_cpu_init, .exit = cpufreq_generic_exit, diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c index 2c8ec8e0644..41a8e2cdf94 100644 --- a/drivers/cpufreq/loongson2_cpufreq.c +++ b/drivers/cpufreq/loongson2_cpufreq.c @@ -53,11 +53,9 @@ static unsigned int loongson2_cpufreq_get(unsigned int cpu) * Here we notify other drivers of the proposed change and the final change. */ static int loongson2_cpufreq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) + unsigned int index) { unsigned int cpu = policy->cpu; - unsigned int newstate = 0; cpumask_t cpus_allowed; struct cpufreq_freqs freqs; unsigned int freq; @@ -65,26 +63,17 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy, cpus_allowed = current->cpus_allowed; set_cpus_allowed_ptr(current, cpumask_of(cpu)); - if (cpufreq_frequency_table_target - (policy, &loongson2_clockmod_table[0], target_freq, relation, - &newstate)) - return -EINVAL; - freq = ((cpu_clock_freq / 1000) * - loongson2_clockmod_table[newstate].driver_data) / 8; - if (freq < policy->min || freq > policy->max) - return -EINVAL; + loongson2_clockmod_table[index].driver_data) / 8; - pr_debug("cpufreq: requested frequency %u Hz\n", target_freq * 1000); + pr_debug("cpufreq: requested frequency %u Hz\n", + loongson2_clockmod_table[index].frequency * 1000); freqs.old = loongson2_cpufreq_get(cpu); freqs.new = freq; freqs.flags = 0; - if (freqs.new == freqs.old) - return 0; - /* notifiers */ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); @@ -145,7 +134,7 @@ static struct cpufreq_driver loongson2_cpufreq_driver = { .name = "loongson2", .init = loongson2_cpufreq_cpu_init, .verify = cpufreq_generic_frequency_table_verify, - .target = loongson2_cpufreq_target, + .target_index = loongson2_cpufreq_target, .get = loongson2_cpufreq_get, .exit = loongson2_cpufreq_exit, .attr = cpufreq_generic_attr, diff --git a/drivers/cpufreq/maple-cpufreq.c b/drivers/cpufreq/maple-cpufreq.c index eb1e1766bae..4e2da0874bf 100644 --- a/drivers/cpufreq/maple-cpufreq.c +++ b/drivers/cpufreq/maple-cpufreq.c @@ -131,26 +131,18 @@ static int maple_scom_query_freq(void) */ static int maple_cpufreq_target(struct cpufreq_policy *policy, - unsigned int target_freq, unsigned int relation) + unsigned int index) { - unsigned int newstate = 0; struct cpufreq_freqs freqs; int rc; - if (cpufreq_frequency_table_target(policy, maple_cpu_freqs, - target_freq, relation, &newstate)) - return -EINVAL; - - if (maple_pmode_cur == newstate) - return 0; - mutex_lock(&maple_switch_mutex); freqs.old = maple_cpu_freqs[maple_pmode_cur].frequency; - freqs.new = maple_cpu_freqs[newstate].frequency; + freqs.new = maple_cpu_freqs[index].frequency; cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - rc = maple_scom_switch_freq(newstate); + rc = maple_scom_switch_freq(index); cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); mutex_unlock(&maple_switch_mutex); @@ -173,7 +165,7 @@ static struct cpufreq_driver maple_cpufreq_driver = { .flags = CPUFREQ_CONST_LOOPS, .init = maple_cpufreq_cpu_init, .verify = cpufreq_generic_frequency_table_verify, - .target = maple_cpufreq_target, + .target_index = maple_cpufreq_target, .get = maple_cpufreq_get_speed, .attr = cpufreq_generic_attr, }; diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c index ac552d09046..b5512712298 100644 --- a/drivers/cpufreq/omap-cpufreq.c +++ b/drivers/cpufreq/omap-cpufreq.c @@ -51,40 +51,15 @@ static unsigned int omap_getspeed(unsigned int cpu) return rate; } -static int omap_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) +static int omap_target(struct cpufreq_policy *policy, unsigned int index) { - unsigned int i; int r, ret = 0; struct cpufreq_freqs freqs; struct dev_pm_opp *opp; unsigned long freq, volt = 0, volt_old = 0, tol = 0; - if (!freq_table) { - dev_err(mpu_dev, "%s: cpu%d: no freq table!\n", __func__, - policy->cpu); - return -EINVAL; - } - - ret = cpufreq_frequency_table_target(policy, freq_table, target_freq, - relation, &i); - if (ret) { - dev_dbg(mpu_dev, "%s: cpu%d: no freq match for %d(ret=%d)\n", - __func__, policy->cpu, target_freq, ret); - return ret; - } - freqs.new = freq_table[i].frequency; - if (!freqs.new) { - dev_err(mpu_dev, "%s: cpu%d: no match for freq %d\n", __func__, - policy->cpu, target_freq); - return -EINVAL; - } - freqs.old = omap_getspeed(policy->cpu); - - if (freqs.old == freqs.new && policy->cur == freqs.new) - return ret; + freqs.new = freq_table[index].frequency; freq = freqs.new * 1000; ret = clk_round_rate(mpu_clk, freq); @@ -200,7 +175,7 @@ static int omap_cpu_exit(struct cpufreq_policy *policy) static struct cpufreq_driver omap_driver = { .flags = CPUFREQ_STICKY, .verify = cpufreq_generic_frequency_table_verify, - .target = omap_target, + .target_index = omap_target, .get = omap_getspeed, .init = omap_cpu_init, .exit = omap_cpu_exit, diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c index 6164c1cca50..3c23053afdf 100644 --- a/drivers/cpufreq/p4-clockmod.c +++ b/drivers/cpufreq/p4-clockmod.c @@ -105,23 +105,13 @@ static struct cpufreq_frequency_table p4clockmod_table[] = { }; -static int cpufreq_p4_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) +static int cpufreq_p4_target(struct cpufreq_policy *policy, unsigned int index) { - unsigned int newstate = DC_RESV; struct cpufreq_freqs freqs; int i; - if (cpufreq_frequency_table_target(policy, &p4clockmod_table[0], - target_freq, relation, &newstate)) - return -EINVAL; - freqs.old = cpufreq_p4_get(policy->cpu); - freqs.new = stock_freq * p4clockmod_table[newstate].driver_data / 8; - - if (freqs.new == freqs.old) - return 0; + freqs.new = stock_freq * p4clockmod_table[index].driver_data / 8; /* notifiers */ cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); @@ -131,7 +121,7 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy, * Developer's Manual, Volume 3 */ for_each_cpu(i, policy->cpus) - cpufreq_p4_setdc(i, p4clockmod_table[newstate].driver_data); + cpufreq_p4_setdc(i, p4clockmod_table[index].driver_data); /* notifiers */ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); @@ -255,7 +245,7 @@ static unsigned int cpufreq_p4_get(unsigned int cpu) static struct cpufreq_driver p4clockmod_driver = { .verify = cpufreq_generic_frequency_table_verify, - .target = cpufreq_p4_target, + .target_index = cpufreq_p4_target, .init = cpufreq_p4_cpu_init, .exit = cpufreq_generic_exit, .get = cpufreq_p4_get, diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c index 1cca332728c..17424ddc7f6 100644 --- a/drivers/cpufreq/pasemi-cpufreq.c +++ b/drivers/cpufreq/pasemi-cpufreq.c @@ -240,19 +240,11 @@ static int pas_cpufreq_cpu_exit(struct cpufreq_policy *policy) } static int pas_cpufreq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) + unsigned int pas_astate_new) { struct cpufreq_freqs freqs; - int pas_astate_new; int i; - cpufreq_frequency_table_target(policy, - pas_freqs, - target_freq, - relation, - &pas_astate_new); - freqs.old = policy->cur; freqs.new = pas_freqs[pas_astate_new].frequency; @@ -282,7 +274,7 @@ static struct cpufreq_driver pas_cpufreq_driver = { .init = pas_cpufreq_cpu_init, .exit = pas_cpufreq_cpu_exit, .verify = cpufreq_generic_frequency_table_verify, - .target = pas_cpufreq_target, + .target_index = pas_cpufreq_target, .attr = cpufreq_generic_attr, }; diff --git a/drivers/cpufreq/pmac32-cpufreq.c b/drivers/cpufreq/pmac32-cpufreq.c index 6eac1e23007..05f705e1b7a 100644 --- a/drivers/cpufreq/pmac32-cpufreq.c +++ b/drivers/cpufreq/pmac32-cpufreq.c @@ -374,17 +374,11 @@ static unsigned int pmac_cpufreq_get_speed(unsigned int cpu) } static int pmac_cpufreq_target( struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) + unsigned int index) { - unsigned int newstate = 0; int rc; - if (cpufreq_frequency_table_target(policy, pmac_cpu_freqs, - target_freq, relation, &newstate)) - return -EINVAL; - - rc = do_set_cpu_speed(policy, newstate, 1); + rc = do_set_cpu_speed(policy, index, 1); ppc_proc_freq = cur_freq * 1000ul; return rc; @@ -453,7 +447,7 @@ static int pmac_cpufreq_resume(struct cpufreq_policy *policy) static struct cpufreq_driver pmac_cpufreq_driver = { .verify = cpufreq_generic_frequency_table_verify, - .target = pmac_cpufreq_target, + .target_index = pmac_cpufreq_target, .get = pmac_cpufreq_get_speed, .init = pmac_cpufreq_cpu_init, .suspend = pmac_cpufreq_suspend, diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c index 5261b92d768..234b598ce41 100644 --- a/drivers/cpufreq/pmac64-cpufreq.c +++ b/drivers/cpufreq/pmac64-cpufreq.c @@ -312,27 +312,18 @@ static int g5_pfunc_query_freq(void) * Common interface to the cpufreq core */ -static int g5_cpufreq_target(struct cpufreq_policy *policy, - unsigned int target_freq, unsigned int relation) +static int g5_cpufreq_target(struct cpufreq_policy *policy, unsigned int index) { - unsigned int newstate = 0; struct cpufreq_freqs freqs; int rc; - if (cpufreq_frequency_table_target(policy, g5_cpu_freqs, - target_freq, relation, &newstate)) - return -EINVAL; - - if (g5_pmode_cur == newstate) - return 0; - mutex_lock(&g5_switch_mutex); freqs.old = g5_cpu_freqs[g5_pmode_cur].frequency; - freqs.new = g5_cpu_freqs[newstate].frequency; + freqs.new = g5_cpu_freqs[index].frequency; cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - rc = g5_switch_freq(newstate); + rc = g5_switch_freq(index); cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); mutex_unlock(&g5_switch_mutex); @@ -355,7 +346,7 @@ static struct cpufreq_driver g5_cpufreq_driver = { .flags = CPUFREQ_CONST_LOOPS, .init = g5_cpufreq_cpu_init, .verify = cpufreq_generic_frequency_table_verify, - .target = g5_cpufreq_target, + .target_index = g5_cpufreq_target, .get = g5_cpufreq_get_speed, .attr = cpufreq_generic_attr, }; diff --git a/drivers/cpufreq/powernow-k6.c b/drivers/cpufreq/powernow-k6.c index eda17024a34..643e7952cad 100644 --- a/drivers/cpufreq/powernow-k6.c +++ b/drivers/cpufreq/powernow-k6.c @@ -63,12 +63,12 @@ static int powernow_k6_get_cpu_multiplier(void) /** - * powernow_k6_set_state - set the PowerNow! multiplier + * powernow_k6_target - set the PowerNow! multiplier * @best_i: clock_ratio[best_i] is the target multiplier * * Tries to change the PowerNow! multiplier */ -static void powernow_k6_set_state(struct cpufreq_policy *policy, +static int powernow_k6_target(struct cpufreq_policy *policy, unsigned int best_i) { unsigned long outvalue = 0, invalue = 0; @@ -77,7 +77,7 @@ static void powernow_k6_set_state(struct cpufreq_policy *policy, if (clock_ratio[best_i].driver_data > max_multiplier) { printk(KERN_ERR PFX "invalid target frequency\n"); - return; + return -EINVAL; } freqs.old = busfreq * powernow_k6_get_cpu_multiplier(); @@ -100,31 +100,6 @@ static void powernow_k6_set_state(struct cpufreq_policy *policy, cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - return; -} - - -/** - * powernow_k6_setpolicy - sets a new CPUFreq policy - * @policy: new policy - * @target_freq: the target frequency - * @relation: how that frequency relates to achieved frequency - * (CPUFREQ_RELATION_L or CPUFREQ_RELATION_H) - * - * sets a new CPUFreq policy - */ -static int powernow_k6_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int newstate = 0; - - if (cpufreq_frequency_table_target(policy, &clock_ratio[0], - target_freq, relation, &newstate)) - return -EINVAL; - - powernow_k6_set_state(policy, newstate); - return 0; } @@ -161,7 +136,7 @@ static int powernow_k6_cpu_exit(struct cpufreq_policy *policy) unsigned int i; for (i = 0; i < 8; i++) { if (i == max_multiplier) - powernow_k6_set_state(policy, i); + powernow_k6_target(policy, i); } cpufreq_frequency_table_put_attr(policy->cpu); return 0; @@ -176,7 +151,7 @@ static unsigned int powernow_k6_get(unsigned int cpu) static struct cpufreq_driver powernow_k6_driver = { .verify = cpufreq_generic_frequency_table_verify, - .target = powernow_k6_target, + .target_index = powernow_k6_target, .init = powernow_k6_cpu_init, .exit = powernow_k6_cpu_exit, .get = powernow_k6_get, diff --git a/drivers/cpufreq/powernow-k7.c b/drivers/cpufreq/powernow-k7.c index 44d345bad6f..946708a1d74 100644 --- a/drivers/cpufreq/powernow-k7.c +++ b/drivers/cpufreq/powernow-k7.c @@ -248,7 +248,7 @@ static void change_VID(int vid) } -static void change_speed(struct cpufreq_policy *policy, unsigned int index) +static int powernow_target(struct cpufreq_policy *policy, unsigned int index) { u8 fid, vid; struct cpufreq_freqs freqs; @@ -291,6 +291,8 @@ static void change_speed(struct cpufreq_policy *policy, unsigned int index) local_irq_enable(); cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); + + return 0; } @@ -533,22 +535,6 @@ static int powernow_decode_bios(int maxfid, int startvid) } -static int powernow_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int newstate; - - if (cpufreq_frequency_table_target(policy, powernow_table, target_freq, - relation, &newstate)) - return -EINVAL; - - change_speed(policy, newstate); - - return 0; -} - - /* * We use the fact that the bus frequency is somehow * a multiple of 100000/3 khz, then we compute sgtc according @@ -694,7 +680,7 @@ static int powernow_cpu_exit(struct cpufreq_policy *policy) static struct cpufreq_driver powernow_driver = { .verify = cpufreq_generic_frequency_table_verify, - .target = powernow_target, + .target_index = powernow_target, .get = powernow_get, #ifdef CONFIG_X86_POWERNOW_K7_ACPI .bios_limit = acpi_processor_get_bios_limit, diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c index 298beb742eb..62a1ce47d3d 100644 --- a/drivers/cpufreq/powernow-k8.c +++ b/drivers/cpufreq/powernow-k8.c @@ -977,20 +977,17 @@ static int transition_frequency_fidvid(struct powernow_k8_data *data, struct powernowk8_target_arg { struct cpufreq_policy *pol; - unsigned targfreq; - unsigned relation; + unsigned newstate; }; static long powernowk8_target_fn(void *arg) { struct powernowk8_target_arg *pta = arg; struct cpufreq_policy *pol = pta->pol; - unsigned targfreq = pta->targfreq; - unsigned relation = pta->relation; + unsigned newstate = pta->newstate; struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu); u32 checkfid; u32 checkvid; - unsigned int newstate; int ret; if (!data) @@ -1004,8 +1001,9 @@ static long powernowk8_target_fn(void *arg) return -EIO; } - pr_debug("targ: cpu %d, %d kHz, min %d, max %d, relation %d\n", - pol->cpu, targfreq, pol->min, pol->max, relation); + pr_debug("targ: cpu %d, %d kHz, min %d, max %d\n", + pol->cpu, data->powernow_table[newstate].frequency, pol->min, + pol->max); if (query_current_values_with_pending_wait(data)) return -EIO; @@ -1021,10 +1019,6 @@ static long powernowk8_target_fn(void *arg) checkvid, data->currvid); } - if (cpufreq_frequency_table_target(pol, data->powernow_table, - targfreq, relation, &newstate)) - return -EIO; - mutex_lock(&fidvid_mutex); powernow_k8_acpi_pst_values(data, newstate); @@ -1044,11 +1038,9 @@ static long powernowk8_target_fn(void *arg) } /* Driver entry point to switch to the target frequency */ -static int powernowk8_target(struct cpufreq_policy *pol, - unsigned targfreq, unsigned relation) +static int powernowk8_target(struct cpufreq_policy *pol, unsigned index) { - struct powernowk8_target_arg pta = { .pol = pol, .targfreq = targfreq, - .relation = relation }; + struct powernowk8_target_arg pta = { .pol = pol, .newstate = index }; return work_on_cpu(pol->cpu, powernowk8_target_fn, &pta); } @@ -1213,7 +1205,7 @@ out: static struct cpufreq_driver cpufreq_amd64_driver = { .verify = cpufreq_generic_frequency_table_verify, - .target = powernowk8_target, + .target_index = powernowk8_target, .bios_limit = acpi_processor_get_bios_limit, .init = powernowk8_cpu_init, .exit = powernowk8_cpu_exit, diff --git a/drivers/cpufreq/ppc-corenet-cpufreq.c b/drivers/cpufreq/ppc-corenet-cpufreq.c index a0f562ca292..79d8e9c46b6 100644 --- a/drivers/cpufreq/ppc-corenet-cpufreq.c +++ b/drivers/cpufreq/ppc-corenet-cpufreq.c @@ -251,27 +251,20 @@ static int __exit corenet_cpufreq_cpu_exit(struct cpufreq_policy *policy) } static int corenet_cpufreq_target(struct cpufreq_policy *policy, - unsigned int target_freq, unsigned int relation) + unsigned int index) { struct cpufreq_freqs freqs; - unsigned int new; struct clk *parent; int ret; struct cpu_data *data = per_cpu(cpu_data, policy->cpu); - cpufreq_frequency_table_target(policy, data->table, - target_freq, relation, &new); - - if (policy->cur == data->table[new].frequency) - return 0; - freqs.old = policy->cur; - freqs.new = data->table[new].frequency; + freqs.new = data->table[index].frequency; mutex_lock(&cpufreq_lock); cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - parent = of_clk_get(data->parent, data->table[new].driver_data); + parent = of_clk_get(data->parent, data->table[index].driver_data); ret = clk_set_parent(data->clk, parent); if (ret) freqs.new = freqs.old; @@ -288,7 +281,7 @@ static struct cpufreq_driver ppc_corenet_cpufreq_driver = { .init = corenet_cpufreq_cpu_init, .exit = __exit_p(corenet_cpufreq_cpu_exit), .verify = cpufreq_generic_frequency_table_verify, - .target = corenet_cpufreq_target, + .target_index = corenet_cpufreq_target, .get = corenet_cpufreq_get_speed, .attr = cpufreq_generic_attr, }; diff --git a/drivers/cpufreq/ppc_cbe_cpufreq.c b/drivers/cpufreq/ppc_cbe_cpufreq.c index 38540d1f593..52f707d5f45 100644 --- a/drivers/cpufreq/ppc_cbe_cpufreq.c +++ b/drivers/cpufreq/ppc_cbe_cpufreq.c @@ -129,18 +129,10 @@ static int cbe_cpufreq_cpu_init(struct cpufreq_policy *policy) } static int cbe_cpufreq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) + unsigned int cbe_pmode_new) { int rc; struct cpufreq_freqs freqs; - unsigned int cbe_pmode_new; - - cpufreq_frequency_table_target(policy, - cbe_freqs, - target_freq, - relation, - &cbe_pmode_new); freqs.old = policy->cur; freqs.new = cbe_freqs[cbe_pmode_new].frequency; @@ -164,7 +156,7 @@ static int cbe_cpufreq_target(struct cpufreq_policy *policy, static struct cpufreq_driver cbe_cpufreq_driver = { .verify = cpufreq_generic_frequency_table_verify, - .target = cbe_cpufreq_target, + .target_index = cbe_cpufreq_target, .init = cbe_cpufreq_cpu_init, .exit = cpufreq_generic_exit, .name = "cbe-cpufreq", diff --git a/drivers/cpufreq/pxa2xx-cpufreq.c b/drivers/cpufreq/pxa2xx-cpufreq.c index 29aca574317..183bc13f13e 100644 --- a/drivers/cpufreq/pxa2xx-cpufreq.c +++ b/drivers/cpufreq/pxa2xx-cpufreq.c @@ -267,14 +267,11 @@ static unsigned int pxa_cpufreq_get(unsigned int cpu) return get_clk_frequency_khz(0); } -static int pxa_set_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) +static int pxa_set_target(struct cpufreq_policy *policy, unsigned int idx) { struct cpufreq_frequency_table *pxa_freqs_table; pxa_freqs_t *pxa_freq_settings; struct cpufreq_freqs freqs; - unsigned int idx; unsigned long flags; unsigned int new_freq_cpu, new_freq_mem; unsigned int unused, preset_mdrefr, postset_mdrefr, cclkcfg; @@ -283,12 +280,6 @@ static int pxa_set_target(struct cpufreq_policy *policy, /* Get the current policy */ find_freq_tables(&pxa_freqs_table, &pxa_freq_settings); - /* Lookup the next frequency */ - if (cpufreq_frequency_table_target(policy, pxa_freqs_table, - target_freq, relation, &idx)) { - return -EINVAL; - } - new_freq_cpu = pxa_freq_settings[idx].khz; new_freq_mem = pxa_freq_settings[idx].membus; freqs.old = policy->cur; @@ -448,7 +439,7 @@ static int pxa_cpufreq_init(struct cpufreq_policy *policy) static struct cpufreq_driver pxa_cpufreq_driver = { .verify = cpufreq_generic_frequency_table_verify, - .target = pxa_set_target, + .target_index = pxa_set_target, .init = pxa_cpufreq_init, .exit = cpufreq_generic_exit, .get = pxa_cpufreq_get, diff --git a/drivers/cpufreq/pxa3xx-cpufreq.c b/drivers/cpufreq/pxa3xx-cpufreq.c index 47fbee49d6e..132e37d578c 100644 --- a/drivers/cpufreq/pxa3xx-cpufreq.c +++ b/drivers/cpufreq/pxa3xx-cpufreq.c @@ -155,24 +155,16 @@ static unsigned int pxa3xx_cpufreq_get(unsigned int cpu) return pxa3xx_get_clk_frequency_khz(0); } -static int pxa3xx_cpufreq_set(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) +static int pxa3xx_cpufreq_set(struct cpufreq_policy *policy, unsigned int index) { struct pxa3xx_freq_info *next; struct cpufreq_freqs freqs; unsigned long flags; - int idx; if (policy->cpu != 0) return -EINVAL; - /* Lookup the next frequency */ - if (cpufreq_frequency_table_target(policy, pxa3xx_freqs_table, - target_freq, relation, &idx)) - return -EINVAL; - - next = &pxa3xx_freqs[idx]; + next = &pxa3xx_freqs[index]; freqs.old = policy->cur; freqs.new = next->cpufreq_mhz * 1000; @@ -181,9 +173,6 @@ static int pxa3xx_cpufreq_set(struct cpufreq_policy *policy, freqs.old / 1000, freqs.new / 1000, (freqs.old == freqs.new) ? " (skipped)" : ""); - if (freqs.old == target_freq) - return 0; - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); local_irq_save(flags); @@ -225,7 +214,7 @@ static int pxa3xx_cpufreq_init(struct cpufreq_policy *policy) static struct cpufreq_driver pxa3xx_cpufreq_driver = { .verify = cpufreq_generic_frequency_table_verify, - .target = pxa3xx_cpufreq_set, + .target_index = pxa3xx_cpufreq_set, .init = pxa3xx_cpufreq_init, .exit = cpufreq_generic_exit, .get = pxa3xx_cpufreq_get, diff --git a/drivers/cpufreq/s3c2416-cpufreq.c b/drivers/cpufreq/s3c2416-cpufreq.c index 26a35d13715..4188accd34a 100644 --- a/drivers/cpufreq/s3c2416-cpufreq.c +++ b/drivers/cpufreq/s3c2416-cpufreq.c @@ -217,24 +217,15 @@ static int s3c2416_cpufreq_leave_dvs(struct s3c2416_data *s3c_freq, int idx) } static int s3c2416_cpufreq_set_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) + unsigned int index) { struct s3c2416_data *s3c_freq = &s3c2416_cpufreq; struct cpufreq_freqs freqs; int idx, ret, to_dvs = 0; - unsigned int i; mutex_lock(&cpufreq_lock); - pr_debug("cpufreq: to %dKHz, relation %d\n", target_freq, relation); - - ret = cpufreq_frequency_table_target(policy, s3c_freq->freq_table, - target_freq, relation, &i); - if (ret != 0) - goto out; - - idx = s3c_freq->freq_table[i].driver_data; + idx = s3c_freq->freq_table[index].driver_data; if (idx == SOURCE_HCLK) to_dvs = 1; @@ -256,7 +247,7 @@ static int s3c2416_cpufreq_set_target(struct cpufreq_policy *policy, */ freqs.new = (s3c_freq->is_dvs && !to_dvs) ? clk_get_rate(s3c_freq->hclk) / 1000 - : s3c_freq->freq_table[i].frequency; + : s3c_freq->freq_table[index].frequency; pr_debug("cpufreq: Transition %d-%dkHz\n", freqs.old, freqs.new); @@ -505,7 +496,7 @@ err_hclk: static struct cpufreq_driver s3c2416_cpufreq_driver = { .flags = 0, .verify = cpufreq_generic_frequency_table_verify, - .target = s3c2416_cpufreq_set_target, + .target_index = s3c2416_cpufreq_set_target, .get = s3c2416_cpufreq_get_speed, .init = s3c2416_cpufreq_driver_init, .name = "s3c2416", diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c index 46161733203..8bdcf32a441 100644 --- a/drivers/cpufreq/s3c64xx-cpufreq.c +++ b/drivers/cpufreq/s3c64xx-cpufreq.c @@ -63,26 +63,16 @@ static unsigned int s3c64xx_cpufreq_get_speed(unsigned int cpu) } static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) + unsigned int index) { int ret; - unsigned int i; struct cpufreq_freqs freqs; struct s3c64xx_dvfs *dvfs; - ret = cpufreq_frequency_table_target(policy, s3c64xx_freq_table, - target_freq, relation, &i); - if (ret != 0) - return ret; - freqs.old = clk_get_rate(armclk) / 1000; - freqs.new = s3c64xx_freq_table[i].frequency; + freqs.new = s3c64xx_freq_table[index].frequency; freqs.flags = 0; - dvfs = &s3c64xx_dvfs_table[s3c64xx_freq_table[i].driver_data]; - - if (freqs.old == freqs.new) - return 0; + dvfs = &s3c64xx_dvfs_table[s3c64xx_freq_table[index].driver_data]; pr_debug("Transition %d-%dkHz\n", freqs.old, freqs.new); @@ -254,7 +244,7 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy) static struct cpufreq_driver s3c64xx_cpufreq_driver = { .flags = 0, .verify = cpufreq_generic_frequency_table_verify, - .target = s3c64xx_cpufreq_set_target, + .target_index = s3c64xx_cpufreq_set_target, .get = s3c64xx_cpufreq_get_speed, .init = s3c64xx_cpufreq_driver_init, .name = "s3c", diff --git a/drivers/cpufreq/s5pv210-cpufreq.c b/drivers/cpufreq/s5pv210-cpufreq.c index 600b4f472e2..5978b94e034 100644 --- a/drivers/cpufreq/s5pv210-cpufreq.c +++ b/drivers/cpufreq/s5pv210-cpufreq.c @@ -36,16 +36,7 @@ static DEFINE_MUTEX(set_freq_lock); /* Use 800MHz when entering sleep mode */ #define SLEEP_FREQ (800 * 1000) -/* - * relation has an additional symantics other than the standard of cpufreq - * DISALBE_FURTHER_CPUFREQ: disable further access to target - * ENABLE_FURTUER_CPUFREQ: enable access to target - */ -enum cpufreq_access { - DISABLE_FURTHER_CPUFREQ = 0x10, - ENABLE_FURTHER_CPUFREQ = 0x20, -}; - +/* Tracks if cpu freqency can be updated anymore */ static bool no_cpufreq_access; /* @@ -182,12 +173,10 @@ static unsigned int s5pv210_getspeed(unsigned int cpu) return clk_get_rate(cpu_clk) / 1000; } -static int s5pv210_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) +static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index) { unsigned long reg; - unsigned int index, priv_index; + unsigned int priv_index; unsigned int pll_changing = 0; unsigned int bus_speed_changing = 0; int arm_volt, int_volt; @@ -195,9 +184,6 @@ static int s5pv210_target(struct cpufreq_policy *policy, mutex_lock(&set_freq_lock); - if (relation & ENABLE_FURTHER_CPUFREQ) - no_cpufreq_access = false; - if (no_cpufreq_access) { #ifdef CONFIG_PM_VERBOSE pr_err("%s:%d denied access to %s as it is disabled" @@ -207,27 +193,13 @@ static int s5pv210_target(struct cpufreq_policy *policy, goto exit; } - if (relation & DISABLE_FURTHER_CPUFREQ) - no_cpufreq_access = true; - - relation &= ~(ENABLE_FURTHER_CPUFREQ | DISABLE_FURTHER_CPUFREQ); - freqs.old = s5pv210_getspeed(0); - - if (cpufreq_frequency_table_target(policy, s5pv210_freq_table, - target_freq, relation, &index)) { - ret = -EINVAL; - goto exit; - } - freqs.new = s5pv210_freq_table[index].frequency; - if (freqs.new == freqs.old) - goto exit; - /* Finding current running level index */ if (cpufreq_frequency_table_target(policy, s5pv210_freq_table, - freqs.old, relation, &priv_index)) { + freqs.old, CPUFREQ_RELATION_H, + &priv_index)) { ret = -EINVAL; goto exit; } @@ -559,16 +531,18 @@ static int s5pv210_cpufreq_notifier_event(struct notifier_block *this, switch (event) { case PM_SUSPEND_PREPARE: - ret = cpufreq_driver_target(cpufreq_cpu_get(0), SLEEP_FREQ, - DISABLE_FURTHER_CPUFREQ); + ret = cpufreq_driver_target(cpufreq_cpu_get(0), SLEEP_FREQ, 0); if (ret < 0) return NOTIFY_BAD; + /* Disable updation of cpu frequency */ + no_cpufreq_access = true; return NOTIFY_OK; case PM_POST_RESTORE: case PM_POST_SUSPEND: - cpufreq_driver_target(cpufreq_cpu_get(0), SLEEP_FREQ, - ENABLE_FURTHER_CPUFREQ); + /* Enable updation of cpu frequency */ + no_cpufreq_access = false; + cpufreq_driver_target(cpufreq_cpu_get(0), SLEEP_FREQ, 0); return NOTIFY_OK; } @@ -581,18 +555,18 @@ static int s5pv210_cpufreq_reboot_notifier_event(struct notifier_block *this, { int ret; - ret = cpufreq_driver_target(cpufreq_cpu_get(0), SLEEP_FREQ, - DISABLE_FURTHER_CPUFREQ); + ret = cpufreq_driver_target(cpufreq_cpu_get(0), SLEEP_FREQ, 0); if (ret < 0) return NOTIFY_BAD; + no_cpufreq_access = true; return NOTIFY_DONE; } static struct cpufreq_driver s5pv210_driver = { .flags = CPUFREQ_STICKY, .verify = cpufreq_generic_frequency_table_verify, - .target = s5pv210_target, + .target_index = s5pv210_target, .get = s5pv210_getspeed, .init = s5pv210_cpu_init, .name = "s5pv210", diff --git a/drivers/cpufreq/sa1100-cpufreq.c b/drivers/cpufreq/sa1100-cpufreq.c index b282cea47e6..b0da1fe40b1 100644 --- a/drivers/cpufreq/sa1100-cpufreq.c +++ b/drivers/cpufreq/sa1100-cpufreq.c @@ -177,36 +177,20 @@ static void sa1100_update_dram_timings(int current_speed, int new_speed) } } -static int sa1100_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) +static int sa1100_target(struct cpufreq_policy *policy, unsigned int ppcr) { unsigned int cur = sa11x0_getspeed(0); - unsigned int new_ppcr; struct cpufreq_freqs freqs; - new_ppcr = sa11x0_freq_to_ppcr(target_freq); - switch (relation) { - case CPUFREQ_RELATION_L: - if (sa11x0_ppcr_to_freq(new_ppcr) > policy->max) - new_ppcr--; - break; - case CPUFREQ_RELATION_H: - if ((sa11x0_ppcr_to_freq(new_ppcr) > target_freq) && - (sa11x0_ppcr_to_freq(new_ppcr - 1) >= policy->min)) - new_ppcr--; - break; - } - freqs.old = cur; - freqs.new = sa11x0_ppcr_to_freq(new_ppcr); + freqs.new = sa11x0_freq_table[ppcr].frequency; cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); if (freqs.new > cur) sa1100_update_dram_timings(cur, freqs.new); - PPCR = new_ppcr; + PPCR = ppcr; if (freqs.new < cur) sa1100_update_dram_timings(cur, freqs.new); @@ -224,7 +208,7 @@ static int __init sa1100_cpu_init(struct cpufreq_policy *policy) static struct cpufreq_driver sa1100_driver __refdata = { .flags = CPUFREQ_STICKY, .verify = cpufreq_generic_frequency_table_verify, - .target = sa1100_target, + .target_index = sa1100_target, .get = sa11x0_getspeed, .init = sa1100_cpu_init, .name = "sa1100", diff --git a/drivers/cpufreq/sa1110-cpufreq.c b/drivers/cpufreq/sa1110-cpufreq.c index bca04c0b4a7..55b1818c3e4 100644 --- a/drivers/cpufreq/sa1110-cpufreq.c +++ b/drivers/cpufreq/sa1110-cpufreq.c @@ -229,34 +229,16 @@ sdram_update_refresh(u_int cpu_khz, struct sdram_params *sdram) /* * Ok, set the CPU frequency. */ -static int sa1110_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) +static int sa1110_target(struct cpufreq_policy *policy, unsigned int ppcr) { struct sdram_params *sdram = &sdram_params; struct cpufreq_freqs freqs; struct sdram_info sd; unsigned long flags; - unsigned int ppcr, unused; - - switch (relation) { - case CPUFREQ_RELATION_L: - ppcr = sa11x0_freq_to_ppcr(target_freq); - if (sa11x0_ppcr_to_freq(ppcr) > policy->max) - ppcr--; - break; - case CPUFREQ_RELATION_H: - ppcr = sa11x0_freq_to_ppcr(target_freq); - if (ppcr && (sa11x0_ppcr_to_freq(ppcr) > target_freq) && - (sa11x0_ppcr_to_freq(ppcr-1) >= policy->min)) - ppcr--; - break; - default: - return -EINVAL; - } + unsigned int unused; freqs.old = sa11x0_getspeed(0); - freqs.new = sa11x0_ppcr_to_freq(ppcr); + freqs.new = sa11x0_freq_table[ppcr].frequency; sdram_calculate_timing(&sd, freqs.new, sdram); @@ -340,7 +322,7 @@ static int __init sa1110_cpu_init(struct cpufreq_policy *policy) static struct cpufreq_driver sa1110_driver __refdata = { .flags = CPUFREQ_STICKY, .verify = cpufreq_generic_frequency_table_verify, - .target = sa1110_target, + .target_index = sa1110_target, .get = sa11x0_getspeed, .init = sa1110_cpu_init, .name = "sa1110", diff --git a/drivers/cpufreq/sc520_freq.c b/drivers/cpufreq/sc520_freq.c index 9047ab1ca01..6c86452e173 100644 --- a/drivers/cpufreq/sc520_freq.c +++ b/drivers/cpufreq/sc520_freq.c @@ -53,8 +53,7 @@ static unsigned int sc520_freq_get_cpu_frequency(unsigned int cpu) } } -static void sc520_freq_set_cpu_state(struct cpufreq_policy *policy, - unsigned int state) +static int sc520_freq_target(struct cpufreq_policy *policy, unsigned int state) { struct cpufreq_freqs freqs; @@ -76,24 +75,10 @@ static void sc520_freq_set_cpu_state(struct cpufreq_policy *policy, local_irq_enable(); cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); -}; - -static int sc520_freq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int newstate = 0; - - if (cpufreq_frequency_table_target(policy, sc520_freq_table, - target_freq, relation, &newstate)) - return -EINVAL; - - sc520_freq_set_cpu_state(policy, newstate); return 0; } - /* * Module init and exit code */ @@ -117,7 +102,7 @@ static int sc520_freq_cpu_init(struct cpufreq_policy *policy) static struct cpufreq_driver sc520_freq_driver = { .get = sc520_freq_get_cpu_frequency, .verify = cpufreq_generic_frequency_table_verify, - .target = sc520_freq_target, + .target_index = sc520_freq_target, .init = sc520_freq_cpu_init, .exit = cpufreq_generic_exit, .name = "sc520_freq", diff --git a/drivers/cpufreq/sparc-us2e-cpufreq.c b/drivers/cpufreq/sparc-us2e-cpufreq.c index 291688c1da9..3bf5b8f0366 100644 --- a/drivers/cpufreq/sparc-us2e-cpufreq.c +++ b/drivers/cpufreq/sparc-us2e-cpufreq.c @@ -245,8 +245,7 @@ static unsigned int us2e_freq_get(unsigned int cpu) return clock_tick / estar_to_divisor(estar); } -static void us2e_set_cpu_divider_index(struct cpufreq_policy *policy, - unsigned int index) +static int us2e_freq_target(struct cpufreq_policy *policy, unsigned int index) { unsigned int cpu = policy->cpu; unsigned long new_bits, new_freq; @@ -277,20 +276,6 @@ static void us2e_set_cpu_divider_index(struct cpufreq_policy *policy, cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); set_cpus_allowed_ptr(current, &cpus_allowed); -} - -static int us2e_freq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int new_index = 0; - - if (cpufreq_frequency_table_target(policy, - &us2e_freq_table[policy->cpu].table[0], - target_freq, relation, &new_index)) - return -EINVAL; - - us2e_set_cpu_divider_index(policy, new_index); return 0; } @@ -325,7 +310,7 @@ static int us2e_freq_cpu_exit(struct cpufreq_policy *policy) { if (cpufreq_us2e_driver) { cpufreq_frequency_table_put_attr(policy->cpu); - us2e_set_cpu_divider_index(policy, 0); + us2e_freq_target(policy, 0); } return 0; @@ -358,7 +343,7 @@ static int __init us2e_freq_init(void) driver->init = us2e_freq_cpu_init; driver->verify = cpufreq_generic_frequency_table_verify; - driver->target = us2e_freq_target; + driver->target_index = us2e_freq_target; driver->get = us2e_freq_get; driver->exit = us2e_freq_cpu_exit; strcpy(driver->name, "UltraSPARC-IIe"); diff --git a/drivers/cpufreq/sparc-us3-cpufreq.c b/drivers/cpufreq/sparc-us3-cpufreq.c index 9b3dbd31362..2e54d55915d 100644 --- a/drivers/cpufreq/sparc-us3-cpufreq.c +++ b/drivers/cpufreq/sparc-us3-cpufreq.c @@ -93,8 +93,7 @@ static unsigned int us3_freq_get(unsigned int cpu) return ret; } -static void us3_set_cpu_divider_index(struct cpufreq_policy *policy, - unsigned int index) +static int us3_freq_target(struct cpufreq_policy *policy, unsigned int index) { unsigned int cpu = policy->cpu; unsigned long new_bits, new_freq, reg; @@ -136,22 +135,6 @@ static void us3_set_cpu_divider_index(struct cpufreq_policy *policy, cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); set_cpus_allowed_ptr(current, &cpus_allowed); -} - -static int us3_freq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int new_index = 0; - - if (cpufreq_frequency_table_target(policy, - &us3_freq_table[policy->cpu].table[0], - target_freq, - relation, - &new_index)) - return -EINVAL; - - us3_set_cpu_divider_index(policy, new_index); return 0; } @@ -182,7 +165,7 @@ static int us3_freq_cpu_exit(struct cpufreq_policy *policy) { if (cpufreq_us3_driver) { cpufreq_frequency_table_put_attr(policy->cpu); - us3_set_cpu_divider_index(policy, 0); + us3_freq_target(policy, 0); } return 0; @@ -219,7 +202,7 @@ static int __init us3_freq_init(void) driver->init = us3_freq_cpu_init; driver->verify = cpufreq_generic_frequency_table_verify; - driver->target = us3_freq_target; + driver->target_index = us3_freq_target; driver->get = us3_freq_get; driver->exit = us3_freq_cpu_exit; strcpy(driver->name, "UltraSPARC-III"); diff --git a/drivers/cpufreq/spear-cpufreq.c b/drivers/cpufreq/spear-cpufreq.c index 8841366a206..11a65be3fd7 100644 --- a/drivers/cpufreq/spear-cpufreq.c +++ b/drivers/cpufreq/spear-cpufreq.c @@ -105,20 +105,16 @@ static int spear1340_set_cpu_rate(struct clk *sys_pclk, unsigned long newfreq) } static int spear_cpufreq_target(struct cpufreq_policy *policy, - unsigned int target_freq, unsigned int relation) + unsigned int index) { struct cpufreq_freqs freqs; long newfreq; struct clk *srcclk; - int index, ret, mult = 1; - - if (cpufreq_frequency_table_target(policy, spear_cpufreq.freq_tbl, - target_freq, relation, &index)) - return -EINVAL; + int ret, mult = 1; freqs.old = spear_cpufreq_get(0); - newfreq = spear_cpufreq.freq_tbl[index].frequency * 1000; + if (of_machine_is_compatible("st,spear1340")) { /* * SPEAr1340 is special in the sense that due to the possibility @@ -179,7 +175,7 @@ static struct cpufreq_driver spear_cpufreq_driver = { .name = "cpufreq-spear", .flags = CPUFREQ_STICKY, .verify = cpufreq_generic_frequency_table_verify, - .target = spear_cpufreq_target, + .target_index = spear_cpufreq_target, .get = spear_cpufreq_get, .init = spear_cpufreq_init, .exit = cpufreq_generic_exit, diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c index 25e45f89aca..c51ec8c0e3a 100644 --- a/drivers/cpufreq/speedstep-centrino.c +++ b/drivers/cpufreq/speedstep-centrino.c @@ -416,21 +416,17 @@ static int centrino_cpu_exit(struct cpufreq_policy *policy) /** * centrino_setpolicy - set a new CPUFreq policy * @policy: new policy - * @target_freq: the target frequency - * @relation: how that frequency relates to achieved frequency - * (CPUFREQ_RELATION_L or CPUFREQ_RELATION_H) + * @index: index of target frequency * * Sets a new CPUFreq policy. */ -static int centrino_target (struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) +static int centrino_target(struct cpufreq_policy *policy, unsigned int index) { - unsigned int newstate = 0; unsigned int msr, oldmsr = 0, h = 0, cpu = policy->cpu; struct cpufreq_freqs freqs; int retval = 0; unsigned int j, first_cpu, tmp; + struct cpufreq_frequency_table *op_points; cpumask_var_t covered_cpus; if (unlikely(!zalloc_cpumask_var(&covered_cpus, GFP_KERNEL))) @@ -441,16 +437,8 @@ static int centrino_target (struct cpufreq_policy *policy, goto out; } - if (unlikely(cpufreq_frequency_table_target(policy, - per_cpu(centrino_model, cpu)->op_points, - target_freq, - relation, - &newstate))) { - retval = -EINVAL; - goto out; - } - first_cpu = 1; + op_points = &per_cpu(centrino_model, cpu)->op_points[index]; for_each_cpu(j, policy->cpus) { int good_cpu; @@ -474,7 +462,7 @@ static int centrino_target (struct cpufreq_policy *policy, break; } - msr = per_cpu(centrino_model, cpu)->op_points[newstate].driver_data; + msr = op_points->driver_data; if (first_cpu) { rdmsr_on_cpu(good_cpu, MSR_IA32_PERF_CTL, &oldmsr, &h); @@ -489,7 +477,8 @@ static int centrino_target (struct cpufreq_policy *policy, freqs.new = extract_clock(msr, cpu, 0); pr_debug("target=%dkHz old=%d new=%d msr=%04x\n", - target_freq, freqs.old, freqs.new, msr); + op_points->frequency, freqs.old, freqs.new, + msr); cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); @@ -540,7 +529,7 @@ static struct cpufreq_driver centrino_driver = { .init = centrino_cpu_init, .exit = centrino_cpu_exit, .verify = cpufreq_generic_frequency_table_verify, - .target = centrino_target, + .target_index = centrino_target, .get = get_cur_freq, .attr = cpufreq_generic_attr, }; diff --git a/drivers/cpufreq/speedstep-ich.c b/drivers/cpufreq/speedstep-ich.c index 1a8b01bd0fe..707721ebb85 100644 --- a/drivers/cpufreq/speedstep-ich.c +++ b/drivers/cpufreq/speedstep-ich.c @@ -251,36 +251,24 @@ static unsigned int speedstep_get(unsigned int cpu) /** * speedstep_target - set a new CPUFreq policy * @policy: new policy - * @target_freq: the target frequency - * @relation: how that frequency relates to achieved frequency - * (CPUFREQ_RELATION_L or CPUFREQ_RELATION_H) + * @index: index of target frequency * * Sets a new CPUFreq policy. */ -static int speedstep_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) +static int speedstep_target(struct cpufreq_policy *policy, unsigned int index) { - unsigned int newstate = 0, policy_cpu; + unsigned int policy_cpu; struct cpufreq_freqs freqs; - if (cpufreq_frequency_table_target(policy, &speedstep_freqs[0], - target_freq, relation, &newstate)) - return -EINVAL; - policy_cpu = cpumask_any_and(policy->cpus, cpu_online_mask); freqs.old = speedstep_get(policy_cpu); - freqs.new = speedstep_freqs[newstate].frequency; + freqs.new = speedstep_freqs[index].frequency; pr_debug("transiting from %u to %u kHz\n", freqs.old, freqs.new); - /* no transition necessary */ - if (freqs.old == freqs.new) - return 0; - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - smp_call_function_single(policy_cpu, _speedstep_set_state, &newstate, + smp_call_function_single(policy_cpu, _speedstep_set_state, &index, true); cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); @@ -330,7 +318,7 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy) static struct cpufreq_driver speedstep_driver = { .name = "speedstep-ich", .verify = cpufreq_generic_frequency_table_verify, - .target = speedstep_target, + .target_index = speedstep_target, .init = speedstep_cpu_init, .exit = cpufreq_generic_exit, .get = speedstep_get, diff --git a/drivers/cpufreq/speedstep-smi.c b/drivers/cpufreq/speedstep-smi.c index a02b649c964..19446e479cc 100644 --- a/drivers/cpufreq/speedstep-smi.c +++ b/drivers/cpufreq/speedstep-smi.c @@ -235,29 +235,19 @@ static void speedstep_set_state(unsigned int state) /** * speedstep_target - set a new CPUFreq policy * @policy: new policy - * @target_freq: new freq - * @relation: + * @index: index of new freq * * Sets a new CPUFreq policy/freq. */ -static int speedstep_target(struct cpufreq_policy *policy, - unsigned int target_freq, unsigned int relation) +static int speedstep_target(struct cpufreq_policy *policy, unsigned int index) { - unsigned int newstate = 0; struct cpufreq_freqs freqs; - if (cpufreq_frequency_table_target(policy, &speedstep_freqs[0], - target_freq, relation, &newstate)) - return -EINVAL; - freqs.old = speedstep_freqs[speedstep_get_state()].frequency; - freqs.new = speedstep_freqs[newstate].frequency; - - if (freqs.old == freqs.new) - return 0; + freqs.new = speedstep_freqs[index].frequency; cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - speedstep_set_state(newstate); + speedstep_set_state(index); cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); return 0; @@ -327,7 +317,7 @@ static int speedstep_resume(struct cpufreq_policy *policy) static struct cpufreq_driver speedstep_driver = { .name = "speedstep-smi", .verify = cpufreq_generic_frequency_table_verify, - .target = speedstep_target, + .target_index = speedstep_target, .init = speedstep_cpu_init, .exit = cpufreq_generic_exit, .get = speedstep_get, diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c index 32483ef63d5..bd7d89c013a 100644 --- a/drivers/cpufreq/tegra-cpufreq.c +++ b/drivers/cpufreq/tegra-cpufreq.c @@ -150,11 +150,8 @@ static unsigned long tegra_cpu_highest_speed(void) return rate; } -static int tegra_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) +static int tegra_target(struct cpufreq_policy *policy, unsigned int index) { - unsigned int idx; unsigned int freq; int ret = 0; @@ -165,10 +162,7 @@ static int tegra_target(struct cpufreq_policy *policy, goto out; } - cpufreq_frequency_table_target(policy, freq_table, target_freq, - relation, &idx); - - freq = freq_table[idx].frequency; + freq = freq_table[index].frequency; target_cpu_speed[policy->cpu] = freq; @@ -238,7 +232,7 @@ static int tegra_cpu_exit(struct cpufreq_policy *policy) static struct cpufreq_driver tegra_cpufreq_driver = { .verify = cpufreq_generic_frequency_table_verify, - .target = tegra_target, + .target_index = tegra_target, .get = tegra_getspeed, .init = tegra_cpu_init, .exit = tegra_cpu_exit, diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 0aba2a6cada..e8c77d33047 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -187,9 +187,11 @@ struct cpufreq_driver { /* define one out of two */ int (*setpolicy) (struct cpufreq_policy *policy); - int (*target) (struct cpufreq_policy *policy, + int (*target) (struct cpufreq_policy *policy, /* Deprecated */ unsigned int target_freq, unsigned int relation); + int (*target_index) (struct cpufreq_policy *policy, + unsigned int index); /* should be defined, if possible */ unsigned int (*get) (unsigned int cpu); -- cgit v1.2.3-70-g09d2 From 016c815084d5b89f7c1a24b1a3a0b796512a91bc Mon Sep 17 00:00:00 2001 From: Dirk Brandewie Date: Mon, 21 Oct 2013 09:20:34 -0700 Subject: intel_pstate: Refactor driver to support CPUs with different MSR layouts Non-core processors have a different MSR layout to commumicate P state information. Refactor the driver to use CPU dependent accessors to P state information. Signed-off-by: Dirk Brandewie Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/intel_pstate.c | 144 ++++++++++++++++++++++++++++------------- 1 file changed, 98 insertions(+), 46 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index d57648989c0..6b37c9ff1d6 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -78,7 +78,6 @@ struct cpudata { struct timer_list timer; - struct pstate_adjust_policy *pstate_policy; struct pstate_data pstate; struct _pid pid; @@ -100,15 +99,21 @@ struct pstate_adjust_policy { int i_gain_pct; }; -static struct pstate_adjust_policy default_policy = { - .sample_rate_ms = 10, - .deadband = 0, - .setpoint = 97, - .p_gain_pct = 20, - .d_gain_pct = 0, - .i_gain_pct = 0, +struct pstate_funcs { + int (*get_max)(void); + int (*get_min)(void); + int (*get_turbo)(void); + void (*set)(int pstate); }; +struct cpu_defaults { + struct pstate_adjust_policy pid_policy; + struct pstate_funcs funcs; +}; + +static struct pstate_adjust_policy pid_params; +static struct pstate_funcs pstate_funcs; + struct perf_limits { int no_turbo; int max_perf_pct; @@ -186,14 +191,14 @@ static signed int pid_calc(struct _pid *pid, int busy) static inline void intel_pstate_busy_pid_reset(struct cpudata *cpu) { - pid_p_gain_set(&cpu->pid, cpu->pstate_policy->p_gain_pct); - pid_d_gain_set(&cpu->pid, cpu->pstate_policy->d_gain_pct); - pid_i_gain_set(&cpu->pid, cpu->pstate_policy->i_gain_pct); + pid_p_gain_set(&cpu->pid, pid_params.p_gain_pct); + pid_d_gain_set(&cpu->pid, pid_params.d_gain_pct); + pid_i_gain_set(&cpu->pid, pid_params.i_gain_pct); pid_reset(&cpu->pid, - cpu->pstate_policy->setpoint, + pid_params.setpoint, 100, - cpu->pstate_policy->deadband, + pid_params.deadband, 0); } @@ -227,12 +232,12 @@ struct pid_param { }; static struct pid_param pid_files[] = { - {"sample_rate_ms", &default_policy.sample_rate_ms}, - {"d_gain_pct", &default_policy.d_gain_pct}, - {"i_gain_pct", &default_policy.i_gain_pct}, - {"deadband", &default_policy.deadband}, - {"setpoint", &default_policy.setpoint}, - {"p_gain_pct", &default_policy.p_gain_pct}, + {"sample_rate_ms", &pid_params.sample_rate_ms}, + {"d_gain_pct", &pid_params.d_gain_pct}, + {"i_gain_pct", &pid_params.i_gain_pct}, + {"deadband", &pid_params.deadband}, + {"setpoint", &pid_params.setpoint}, + {"p_gain_pct", &pid_params.p_gain_pct}, {NULL, NULL} }; @@ -337,33 +342,60 @@ static void intel_pstate_sysfs_expose_params(void) } /************************** sysfs end ************************/ - -static int intel_pstate_min_pstate(void) +static int core_get_min_pstate(void) { u64 value; rdmsrl(MSR_PLATFORM_INFO, value); return (value >> 40) & 0xFF; } -static int intel_pstate_max_pstate(void) +static int core_get_max_pstate(void) { u64 value; rdmsrl(MSR_PLATFORM_INFO, value); return (value >> 8) & 0xFF; } -static int intel_pstate_turbo_pstate(void) +static int core_get_turbo_pstate(void) { u64 value; int nont, ret; rdmsrl(MSR_NHM_TURBO_RATIO_LIMIT, value); - nont = intel_pstate_max_pstate(); + nont = core_get_max_pstate(); ret = ((value) & 255); if (ret <= nont) ret = nont; return ret; } +static void core_set_pstate(int pstate) +{ + u64 val; + + val = pstate << 8; + if (limits.no_turbo) + val |= (u64)1 << 32; + + wrmsrl(MSR_IA32_PERF_CTL, val); +} + +static struct cpu_defaults core_params = { + .pid_policy = { + .sample_rate_ms = 10, + .deadband = 0, + .setpoint = 97, + .p_gain_pct = 20, + .d_gain_pct = 0, + .i_gain_pct = 0, + }, + .funcs = { + .get_max = core_get_max_pstate, + .get_min = core_get_min_pstate, + .get_turbo = core_get_turbo_pstate, + .set = core_set_pstate, + }, +}; + static void intel_pstate_get_min_max(struct cpudata *cpu, int *min, int *max) { int max_perf = cpu->pstate.turbo_pstate; @@ -383,7 +415,6 @@ static void intel_pstate_get_min_max(struct cpudata *cpu, int *min, int *max) static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate) { int max_perf, min_perf; - u64 val; intel_pstate_get_min_max(cpu, &min_perf, &max_perf); @@ -395,11 +426,8 @@ static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate) trace_cpu_frequency(pstate * 100000, cpu->cpu); cpu->pstate.current_pstate = pstate; - val = pstate << 8; - if (limits.no_turbo) - val |= (u64)1 << 32; - wrmsrl(MSR_IA32_PERF_CTL, val); + pstate_funcs.set(pstate); } static inline void intel_pstate_pstate_increase(struct cpudata *cpu, int steps) @@ -421,9 +449,9 @@ static void intel_pstate_get_cpu_pstates(struct cpudata *cpu) { sprintf(cpu->name, "Intel 2nd generation core"); - cpu->pstate.min_pstate = intel_pstate_min_pstate(); - cpu->pstate.max_pstate = intel_pstate_max_pstate(); - cpu->pstate.turbo_pstate = intel_pstate_turbo_pstate(); + cpu->pstate.min_pstate = pstate_funcs.get_min(); + cpu->pstate.max_pstate = pstate_funcs.get_max(); + cpu->pstate.turbo_pstate = pstate_funcs.get_turbo(); /* * goto max pstate so we don't slow up boot if we are built-in if we are @@ -464,7 +492,7 @@ static inline void intel_pstate_set_sample_time(struct cpudata *cpu) { int sample_time, delay; - sample_time = cpu->pstate_policy->sample_rate_ms; + sample_time = pid_params.sample_rate_ms; delay = msecs_to_jiffies(sample_time); mod_timer_pinned(&cpu->timer, jiffies + delay); } @@ -523,14 +551,14 @@ static void intel_pstate_timer_func(unsigned long __data) { X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, (unsigned long)&policy } static const struct x86_cpu_id intel_pstate_cpu_ids[] = { - ICPU(0x2a, default_policy), - ICPU(0x2d, default_policy), - ICPU(0x3a, default_policy), - ICPU(0x3c, default_policy), - ICPU(0x3e, default_policy), - ICPU(0x3f, default_policy), - ICPU(0x45, default_policy), - ICPU(0x46, default_policy), + ICPU(0x2a, core_params), + ICPU(0x2d, core_params), + ICPU(0x3a, core_params), + ICPU(0x3c, core_params), + ICPU(0x3e, core_params), + ICPU(0x3f, core_params), + ICPU(0x45, core_params), + ICPU(0x46, core_params), {} }; MODULE_DEVICE_TABLE(x86cpu, intel_pstate_cpu_ids); @@ -554,8 +582,7 @@ static int intel_pstate_init_cpu(unsigned int cpunum) intel_pstate_get_cpu_pstates(cpu); cpu->cpu = cpunum; - cpu->pstate_policy = - (struct pstate_adjust_policy *)id->driver_data; + init_timer_deferrable(&cpu->timer); cpu->timer.function = intel_pstate_timer_func; cpu->timer.data = @@ -683,9 +710,9 @@ static int intel_pstate_msrs_not_valid(void) rdmsrl(MSR_IA32_APERF, aperf); rdmsrl(MSR_IA32_MPERF, mperf); - if (!intel_pstate_min_pstate() || - !intel_pstate_max_pstate() || - !intel_pstate_turbo_pstate()) + if (!pstate_funcs.get_max() || + !pstate_funcs.get_min() || + !pstate_funcs.get_turbo()) return -ENODEV; rdmsrl(MSR_IA32_APERF, tmp); @@ -698,10 +725,30 @@ static int intel_pstate_msrs_not_valid(void) return 0; } + +void copy_pid_params(struct pstate_adjust_policy *policy) +{ + pid_params.sample_rate_ms = policy->sample_rate_ms; + pid_params.p_gain_pct = policy->p_gain_pct; + pid_params.i_gain_pct = policy->i_gain_pct; + pid_params.d_gain_pct = policy->d_gain_pct; + pid_params.deadband = policy->deadband; + pid_params.setpoint = policy->setpoint; +} + +void copy_cpu_funcs(struct pstate_funcs *funcs) +{ + pstate_funcs.get_max = funcs->get_max; + pstate_funcs.get_min = funcs->get_min; + pstate_funcs.get_turbo = funcs->get_turbo; + pstate_funcs.set = funcs->set; +} + static int __init intel_pstate_init(void) { int cpu, rc = 0; const struct x86_cpu_id *id; + struct cpu_defaults *cpu_info; if (no_load) return -ENODEV; @@ -710,6 +757,11 @@ static int __init intel_pstate_init(void) if (!id) return -ENODEV; + cpu_info = (struct cpu_defaults *)id->driver_data; + + copy_pid_params(&cpu_info->pid_policy); + copy_cpu_funcs(&cpu_info->funcs); + if (intel_pstate_msrs_not_valid()) return -ENODEV; -- cgit v1.2.3-70-g09d2 From 19e77c28dbf1972305da0dfeb92a62f83df3a91d Mon Sep 17 00:00:00 2001 From: Dirk Brandewie Date: Mon, 21 Oct 2013 09:20:35 -0700 Subject: intel_pstate: Add Baytrail support Add support for the Baytrail processor. Signed-off-by: Dirk Brandewie Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/intel_pstate.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 6b37c9ff1d6..27c2753909f 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -33,6 +33,8 @@ #define SAMPLE_COUNT 3 +#define BYT_RATIOS 0x66a + #define FRAC_BITS 8 #define int_tofp(X) ((int64_t)(X) << FRAC_BITS) #define fp_toint(X) ((X) >> FRAC_BITS) @@ -342,6 +344,20 @@ static void intel_pstate_sysfs_expose_params(void) } /************************** sysfs end ************************/ +static int byt_get_min_pstate(void) +{ + u64 value; + rdmsrl(BYT_RATIOS, value); + return value & 0xFF; +} + +static int byt_get_max_pstate(void) +{ + u64 value; + rdmsrl(BYT_RATIOS, value); + return (value >> 16) & 0xFF; +} + static int core_get_min_pstate(void) { u64 value; @@ -396,6 +412,24 @@ static struct cpu_defaults core_params = { }, }; +static struct cpu_defaults byt_params = { + .pid_policy = { + .sample_rate_ms = 10, + .deadband = 0, + .setpoint = 97, + .p_gain_pct = 14, + .d_gain_pct = 0, + .i_gain_pct = 4, + }, + .funcs = { + .get_max = byt_get_max_pstate, + .get_min = byt_get_min_pstate, + .get_turbo = byt_get_max_pstate, + .set = core_set_pstate, + }, +}; + + static void intel_pstate_get_min_max(struct cpudata *cpu, int *min, int *max) { int max_perf = cpu->pstate.turbo_pstate; @@ -553,6 +587,7 @@ static void intel_pstate_timer_func(unsigned long __data) static const struct x86_cpu_id intel_pstate_cpu_ids[] = { ICPU(0x2a, core_params), ICPU(0x2d, core_params), + ICPU(0x37, byt_params), ICPU(0x3a, core_params), ICPU(0x3c, core_params), ICPU(0x3e, core_params), -- cgit v1.2.3-70-g09d2 From ad7722dab7292dbc1c4586d701ac226b68122d39 Mon Sep 17 00:00:00 2001 From: viresh kumar Date: Fri, 18 Oct 2013 19:10:15 +0530 Subject: cpufreq: create per policy rwsem instead of per CPU cpu_policy_rwsem We have per-CPU cpu_policy_rwsem for cpufreq core, but we never use all of them. We always use rwsem of policy->cpu and so we can actually make this rwsem per policy instead. This patch does this change. With this change other tricky situations are also avoided now, like which lock to take while we are changing policy->cpu, etc. Suggested-by: Srivatsa S. Bhat Signed-off-by: Viresh Kumar Reviewed-by: Srivatsa S. Bhat Tested-by: Andrew Lunn Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq.c | 110 +++++++++++++--------------------------------- include/linux/cpufreq.h | 14 ++++++ 2 files changed, 45 insertions(+), 79 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 87ed83a6c89..6c9cbb9ebd1 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -52,47 +52,6 @@ static inline bool has_target(void) return cpufreq_driver->target_index || cpufreq_driver->target; } -/* - * cpu_policy_rwsem is a per CPU reader-writer semaphore designed to cure - * all cpufreq/hotplug/workqueue/etc related lock issues. - * - * The rules for this semaphore: - * - Any routine that wants to read from the policy structure will - * do a down_read on this semaphore. - * - Any routine that will write to the policy structure and/or may take away - * the policy altogether (eg. CPU hotplug), will hold this lock in write - * mode before doing so. - * - * Additional rules: - * - Governor routines that can be called in cpufreq hotplug path should not - * take this sem as top level hotplug notifier handler takes this. - * - Lock should not be held across - * __cpufreq_governor(data, CPUFREQ_GOV_STOP); - */ -static DEFINE_PER_CPU(struct rw_semaphore, cpu_policy_rwsem); - -#define lock_policy_rwsem(mode, cpu) \ -static void lock_policy_rwsem_##mode(int cpu) \ -{ \ - struct cpufreq_policy *policy = per_cpu(cpufreq_cpu_data, cpu); \ - BUG_ON(!policy); \ - down_##mode(&per_cpu(cpu_policy_rwsem, policy->cpu)); \ -} - -lock_policy_rwsem(read, cpu); -lock_policy_rwsem(write, cpu); - -#define unlock_policy_rwsem(mode, cpu) \ -static void unlock_policy_rwsem_##mode(int cpu) \ -{ \ - struct cpufreq_policy *policy = per_cpu(cpufreq_cpu_data, cpu); \ - BUG_ON(!policy); \ - up_##mode(&per_cpu(cpu_policy_rwsem, policy->cpu)); \ -} - -unlock_policy_rwsem(read, cpu); -unlock_policy_rwsem(write, cpu); - /* * rwsem to guarantee that cpufreq driver module doesn't unload during critical * sections @@ -688,14 +647,14 @@ static ssize_t show(struct kobject *kobj, struct attribute *attr, char *buf) if (!down_read_trylock(&cpufreq_rwsem)) return -EINVAL; - lock_policy_rwsem_read(policy->cpu); + down_read(&policy->rwsem); if (fattr->show) ret = fattr->show(policy, buf); else ret = -EIO; - unlock_policy_rwsem_read(policy->cpu); + up_read(&policy->rwsem); up_read(&cpufreq_rwsem); return ret; @@ -716,14 +675,14 @@ static ssize_t store(struct kobject *kobj, struct attribute *attr, if (!down_read_trylock(&cpufreq_rwsem)) goto unlock; - lock_policy_rwsem_write(policy->cpu); + down_write(&policy->rwsem); if (fattr->store) ret = fattr->store(policy, buf, count); else ret = -EIO; - unlock_policy_rwsem_write(policy->cpu); + up_write(&policy->rwsem); up_read(&cpufreq_rwsem); unlock: @@ -900,7 +859,7 @@ static int cpufreq_add_policy_cpu(struct cpufreq_policy *policy, } } - lock_policy_rwsem_write(policy->cpu); + down_write(&policy->rwsem); write_lock_irqsave(&cpufreq_driver_lock, flags); @@ -908,7 +867,7 @@ static int cpufreq_add_policy_cpu(struct cpufreq_policy *policy, per_cpu(cpufreq_cpu_data, cpu) = policy; write_unlock_irqrestore(&cpufreq_driver_lock, flags); - unlock_policy_rwsem_write(policy->cpu); + up_write(&policy->rwsem); if (has_target()) { if ((ret = __cpufreq_governor(policy, CPUFREQ_GOV_START)) || @@ -955,6 +914,8 @@ static struct cpufreq_policy *cpufreq_policy_alloc(void) goto err_free_cpumask; INIT_LIST_HEAD(&policy->policy_list); + init_rwsem(&policy->rwsem); + return policy; err_free_cpumask: @@ -977,19 +938,12 @@ static void update_policy_cpu(struct cpufreq_policy *policy, unsigned int cpu) if (WARN_ON(cpu == policy->cpu)) return; - /* - * Take direct locks as lock_policy_rwsem_write wouldn't work here. - * Also lock for last cpu is enough here as contention will happen only - * after policy->cpu is changed and after it is changed, other threads - * will try to acquire lock for new cpu. And policy is already updated - * by then. - */ - down_write(&per_cpu(cpu_policy_rwsem, policy->cpu)); + down_write(&policy->rwsem); policy->last_cpu = policy->cpu; policy->cpu = cpu; - up_write(&per_cpu(cpu_policy_rwsem, policy->last_cpu)); + up_write(&policy->rwsem); cpufreq_frequency_table_update_policy_cpu(policy); blocking_notifier_call_chain(&cpufreq_policy_notifier_list, @@ -1181,9 +1135,9 @@ static int cpufreq_nominate_new_policy_cpu(struct cpufreq_policy *policy, if (ret) { pr_err("%s: Failed to move kobj: %d", __func__, ret); - lock_policy_rwsem_write(old_cpu); + down_write(&policy->rwsem); cpumask_set_cpu(old_cpu, policy->cpus); - unlock_policy_rwsem_write(old_cpu); + up_write(&policy->rwsem); ret = sysfs_create_link(&cpu_dev->kobj, &policy->kobj, "cpufreq"); @@ -1234,9 +1188,9 @@ static int __cpufreq_remove_dev_prepare(struct device *dev, policy->governor->name, CPUFREQ_NAME_LEN); #endif - lock_policy_rwsem_read(cpu); + down_read(&policy->rwsem); cpus = cpumask_weight(policy->cpus); - unlock_policy_rwsem_read(cpu); + up_read(&policy->rwsem); if (cpu != policy->cpu) { if (!frozen) @@ -1276,12 +1230,12 @@ static int __cpufreq_remove_dev_finish(struct device *dev, return -EINVAL; } - lock_policy_rwsem_write(cpu); + down_write(&policy->rwsem); cpus = cpumask_weight(policy->cpus); if (cpus > 1) cpumask_clear_cpu(cpu, policy->cpus); - unlock_policy_rwsem_write(cpu); + up_write(&policy->rwsem); /* If cpu is last user of policy, free policy */ if (cpus == 1) { @@ -1296,10 +1250,10 @@ static int __cpufreq_remove_dev_finish(struct device *dev, } if (!frozen) { - lock_policy_rwsem_read(cpu); + down_read(&policy->rwsem); kobj = &policy->kobj; cmp = &policy->kobj_unregister; - unlock_policy_rwsem_read(cpu); + up_read(&policy->rwsem); kobject_put(kobj); /* @@ -1479,19 +1433,22 @@ static unsigned int __cpufreq_get(unsigned int cpu) */ unsigned int cpufreq_get(unsigned int cpu) { + struct cpufreq_policy *policy = per_cpu(cpufreq_cpu_data, cpu); unsigned int ret_freq = 0; if (cpufreq_disabled() || !cpufreq_driver) return -ENOENT; + BUG_ON(!policy); + if (!down_read_trylock(&cpufreq_rwsem)) return 0; - lock_policy_rwsem_read(cpu); + down_read(&policy->rwsem); ret_freq = __cpufreq_get(cpu); - unlock_policy_rwsem_read(cpu); + up_read(&policy->rwsem); up_read(&cpufreq_rwsem); return ret_freq; @@ -1744,11 +1701,11 @@ int cpufreq_driver_target(struct cpufreq_policy *policy, { int ret = -EINVAL; - lock_policy_rwsem_write(policy->cpu); + down_write(&policy->rwsem); ret = __cpufreq_driver_target(policy, target_freq, relation); - unlock_policy_rwsem_write(policy->cpu); + up_write(&policy->rwsem); return ret; } @@ -1979,10 +1936,10 @@ static int cpufreq_set_policy(struct cpufreq_policy *policy, /* end old governor */ if (policy->governor) { __cpufreq_governor(policy, CPUFREQ_GOV_STOP); - unlock_policy_rwsem_write(new_policy->cpu); + up_write(&policy->rwsem); __cpufreq_governor(policy, CPUFREQ_GOV_POLICY_EXIT); - lock_policy_rwsem_write(new_policy->cpu); + down_write(&policy->rwsem); } /* start new governor */ @@ -1991,10 +1948,10 @@ static int cpufreq_set_policy(struct cpufreq_policy *policy, if (!__cpufreq_governor(policy, CPUFREQ_GOV_START)) { failed = 0; } else { - unlock_policy_rwsem_write(new_policy->cpu); + up_write(&policy->rwsem); __cpufreq_governor(policy, CPUFREQ_GOV_POLICY_EXIT); - lock_policy_rwsem_write(new_policy->cpu); + down_write(&policy->rwsem); } } @@ -2040,7 +1997,7 @@ int cpufreq_update_policy(unsigned int cpu) goto no_policy; } - lock_policy_rwsem_write(cpu); + down_write(&policy->rwsem); pr_debug("updating policy for CPU %u\n", cpu); memcpy(&new_policy, policy, sizeof(*policy)); @@ -2067,7 +2024,7 @@ int cpufreq_update_policy(unsigned int cpu) ret = cpufreq_set_policy(policy, &new_policy); - unlock_policy_rwsem_write(cpu); + up_write(&policy->rwsem); cpufreq_cpu_put(policy); no_policy: @@ -2225,14 +2182,9 @@ EXPORT_SYMBOL_GPL(cpufreq_unregister_driver); static int __init cpufreq_core_init(void) { - int cpu; - if (cpufreq_disabled()) return -ENODEV; - for_each_possible_cpu(cpu) - init_rwsem(&per_cpu(cpu_policy_rwsem, cpu)); - cpufreq_global_kobject = kobject_create(); BUG_ON(!cpufreq_global_kobject); register_syscore_ops(&cpufreq_syscore_ops); diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index e8c77d33047..93a8c34d6c7 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -85,6 +85,20 @@ struct cpufreq_policy { struct list_head policy_list; struct kobject kobj; struct completion kobj_unregister; + + /* + * The rules for this semaphore: + * - Any routine that wants to read from the policy structure will + * do a down_read on this semaphore. + * - Any routine that will write to the policy structure and/or may take away + * the policy altogether (eg. CPU hotplug), will hold this lock in write + * mode before doing so. + * + * Additional rules: + * - Lock should not be held across + * __cpufreq_governor(data, CPUFREQ_GOV_POLICY_EXIT); + */ + struct rw_semaphore rwsem; }; /* Only for ACPI */ -- cgit v1.2.3-70-g09d2 From 47ac9aa165540b43deb3582f186073884de1cf3b Mon Sep 17 00:00:00 2001 From: Sudeep KarkadaNagesha Date: Tue, 29 Oct 2013 12:18:39 +0000 Subject: cpufreq: arm_big_little: add vexpress SPC interface driver The TC2(i.e. CA15_A7) Versatile Express has external Cortex M3 based power controller which is responsible for CPU DVFS and SPC provides the interface for the same. This patch adds a tiny interface driver to check if OPPs are initialised by SPC platform code and register the arm_big_little cpufreq driver. Signed-off-by: Sudeep KarkadaNagesha Acked-by: Nicolas Pitre Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/Kconfig.arm | 8 ++++ drivers/cpufreq/Makefile | 1 + drivers/cpufreq/vexpress-spc-cpufreq.c | 70 ++++++++++++++++++++++++++++++++++ 3 files changed, 79 insertions(+) create mode 100644 drivers/cpufreq/vexpress-spc-cpufreq.c (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm index 701ec95ce95..ce52ed94924 100644 --- a/drivers/cpufreq/Kconfig.arm +++ b/drivers/cpufreq/Kconfig.arm @@ -224,3 +224,11 @@ config ARM_TEGRA_CPUFREQ default y help This adds the CPUFreq driver support for TEGRA SOCs. + +config ARM_VEXPRESS_SPC_CPUFREQ + tristate "Versatile Express SPC based CPUfreq driver" + select ARM_BIG_LITTLE_CPUFREQ + depends on ARCH_VEXPRESS_SPC + help + This add the CPUfreq driver support for Versatile Express + big.LITTLE platforms using SPC for power management. diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile index b7948bbbbf1..74945652dd7 100644 --- a/drivers/cpufreq/Makefile +++ b/drivers/cpufreq/Makefile @@ -74,6 +74,7 @@ obj-$(CONFIG_ARM_SA1100_CPUFREQ) += sa1100-cpufreq.o obj-$(CONFIG_ARM_SA1110_CPUFREQ) += sa1110-cpufreq.o obj-$(CONFIG_ARM_SPEAR_CPUFREQ) += spear-cpufreq.o obj-$(CONFIG_ARM_TEGRA_CPUFREQ) += tegra-cpufreq.o +obj-$(CONFIG_ARM_VEXPRESS_SPC_CPUFREQ) += vexpress-spc-cpufreq.o ################################################################################## # PowerPC platform drivers diff --git a/drivers/cpufreq/vexpress-spc-cpufreq.c b/drivers/cpufreq/vexpress-spc-cpufreq.c new file mode 100644 index 00000000000..7f7c9c01b44 --- /dev/null +++ b/drivers/cpufreq/vexpress-spc-cpufreq.c @@ -0,0 +1,70 @@ +/* + * Versatile Express SPC CPUFreq Interface driver + * + * It provides necessary ops to arm_big_little cpufreq driver. + * + * Copyright (C) 2013 ARM Ltd. + * Sudeep KarkadaNagesha + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include +#include +#include + +#include "arm_big_little.h" + +static int ve_spc_init_opp_table(struct device *cpu_dev) +{ + /* + * platform specific SPC code must initialise the opp table + * so just check if the OPP count is non-zero + */ + return dev_pm_opp_get_opp_count(cpu_dev) <= 0; +} + +static int ve_spc_get_transition_latency(struct device *cpu_dev) +{ + return 1000000; /* 1 ms */ +} + +static struct cpufreq_arm_bL_ops ve_spc_cpufreq_ops = { + .name = "vexpress-spc", + .get_transition_latency = ve_spc_get_transition_latency, + .init_opp_table = ve_spc_init_opp_table, +}; + +static int ve_spc_cpufreq_probe(struct platform_device *pdev) +{ + return bL_cpufreq_register(&ve_spc_cpufreq_ops); +} + +static int ve_spc_cpufreq_remove(struct platform_device *pdev) +{ + bL_cpufreq_unregister(&ve_spc_cpufreq_ops); + return 0; +} + +static struct platform_driver ve_spc_cpufreq_platdrv = { + .driver = { + .name = "vexpress-spc-cpufreq", + .owner = THIS_MODULE, + }, + .probe = ve_spc_cpufreq_probe, + .remove = ve_spc_cpufreq_remove, +}; +module_platform_driver(ve_spc_cpufreq_platdrv); + +MODULE_LICENSE("GPL"); -- cgit v1.2.3-70-g09d2 From e79a23c5b9870b7f80425793abeb10e57f7486d4 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 30 Oct 2013 15:44:40 -0400 Subject: cpufreq: arm_big_little: add in-kernel switching (IKS) support This patch adds IKS (In Kernel Switcher) support to cpufreq driver. This creates a combined freq table for A7-A15 CPU pairs. A7 frequencies are virtualized and scaled down to half the actual frequencies to approximate a linear scale across the combined A7+A15 range. When the requested frequency change crosses the A7-A15 boundary a cluster switch is invoked. Based on earlier work from Sudeep KarkadaNagesha. Signed-off-by: Sudeep KarkadaNagesha Signed-off-by: Viresh Kumar Signed-off-by: Nicolas Pitre Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/arm_big_little.c | 363 ++++++++++++++++++++++++++++++++++++--- drivers/cpufreq/arm_big_little.h | 5 - 2 files changed, 337 insertions(+), 31 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c index 163e3378fe1..9986f791232 100644 --- a/drivers/cpufreq/arm_big_little.c +++ b/drivers/cpufreq/arm_big_little.c @@ -24,27 +24,165 @@ #include #include #include +#include #include #include #include #include #include +#include #include "arm_big_little.h" /* Currently we support only two clusters */ +#define A15_CLUSTER 0 +#define A7_CLUSTER 1 #define MAX_CLUSTERS 2 +#ifdef CONFIG_BL_SWITCHER +#define is_bL_switching_enabled() true +#else +#define is_bL_switching_enabled() false +#endif + +#define ACTUAL_FREQ(cluster, freq) ((cluster == A7_CLUSTER) ? freq << 1 : freq) +#define VIRT_FREQ(cluster, freq) ((cluster == A7_CLUSTER) ? freq >> 1 : freq) + static struct cpufreq_arm_bL_ops *arm_bL_ops; static struct clk *clk[MAX_CLUSTERS]; -static struct cpufreq_frequency_table *freq_table[MAX_CLUSTERS]; -static atomic_t cluster_usage[MAX_CLUSTERS] = {ATOMIC_INIT(0), ATOMIC_INIT(0)}; +static struct cpufreq_frequency_table *freq_table[MAX_CLUSTERS + 1]; +static atomic_t cluster_usage[MAX_CLUSTERS + 1]; + +static unsigned int clk_big_min; /* (Big) clock frequencies */ +static unsigned int clk_little_max; /* Maximum clock frequency (Little) */ + +static DEFINE_PER_CPU(unsigned int, physical_cluster); +static DEFINE_PER_CPU(unsigned int, cpu_last_req_freq); + +static struct mutex cluster_lock[MAX_CLUSTERS]; + +static inline int raw_cpu_to_cluster(int cpu) +{ + return topology_physical_package_id(cpu); +} + +static inline int cpu_to_cluster(int cpu) +{ + return is_bL_switching_enabled() ? + MAX_CLUSTERS : raw_cpu_to_cluster(cpu); +} + +static unsigned int find_cluster_maxfreq(int cluster) +{ + int j; + u32 max_freq = 0, cpu_freq; + + for_each_online_cpu(j) { + cpu_freq = per_cpu(cpu_last_req_freq, j); + + if ((cluster == per_cpu(physical_cluster, j)) && + (max_freq < cpu_freq)) + max_freq = cpu_freq; + } + + pr_debug("%s: cluster: %d, max freq: %d\n", __func__, cluster, + max_freq); + + return max_freq; +} + +static unsigned int clk_get_cpu_rate(unsigned int cpu) +{ + u32 cur_cluster = per_cpu(physical_cluster, cpu); + u32 rate = clk_get_rate(clk[cur_cluster]) / 1000; + + /* For switcher we use virtual A7 clock rates */ + if (is_bL_switching_enabled()) + rate = VIRT_FREQ(cur_cluster, rate); + + pr_debug("%s: cpu: %d, cluster: %d, freq: %u\n", __func__, cpu, + cur_cluster, rate); + + return rate; +} + +static unsigned int bL_cpufreq_get_rate(unsigned int cpu) +{ + if (is_bL_switching_enabled()) { + pr_debug("%s: freq: %d\n", __func__, per_cpu(cpu_last_req_freq, + cpu)); + + return per_cpu(cpu_last_req_freq, cpu); + } else { + return clk_get_cpu_rate(cpu); + } +} -static unsigned int bL_cpufreq_get(unsigned int cpu) +static unsigned int +bL_cpufreq_set_rate(u32 cpu, u32 old_cluster, u32 new_cluster, u32 rate) { - u32 cur_cluster = cpu_to_cluster(cpu); + u32 new_rate, prev_rate; + int ret; + bool bLs = is_bL_switching_enabled(); + + mutex_lock(&cluster_lock[new_cluster]); + + if (bLs) { + prev_rate = per_cpu(cpu_last_req_freq, cpu); + per_cpu(cpu_last_req_freq, cpu) = rate; + per_cpu(physical_cluster, cpu) = new_cluster; + + new_rate = find_cluster_maxfreq(new_cluster); + new_rate = ACTUAL_FREQ(new_cluster, new_rate); + } else { + new_rate = rate; + } + + pr_debug("%s: cpu: %d, old cluster: %d, new cluster: %d, freq: %d\n", + __func__, cpu, old_cluster, new_cluster, new_rate); + + ret = clk_set_rate(clk[new_cluster], new_rate * 1000); + if (WARN_ON(ret)) { + pr_err("clk_set_rate failed: %d, new cluster: %d\n", ret, + new_cluster); + if (bLs) { + per_cpu(cpu_last_req_freq, cpu) = prev_rate; + per_cpu(physical_cluster, cpu) = old_cluster; + } + + mutex_unlock(&cluster_lock[new_cluster]); + + return ret; + } + + mutex_unlock(&cluster_lock[new_cluster]); + + /* Recalc freq for old cluster when switching clusters */ + if (old_cluster != new_cluster) { + pr_debug("%s: cpu: %d, old cluster: %d, new cluster: %d\n", + __func__, cpu, old_cluster, new_cluster); + + /* Switch cluster */ + bL_switch_request(cpu, new_cluster); + + mutex_lock(&cluster_lock[old_cluster]); - return clk_get_rate(clk[cur_cluster]) / 1000; + /* Set freq of old cluster if there are cpus left on it */ + new_rate = find_cluster_maxfreq(old_cluster); + new_rate = ACTUAL_FREQ(old_cluster, new_rate); + + if (new_rate) { + pr_debug("%s: Updating rate of old cluster: %d, to freq: %d\n", + __func__, old_cluster, new_rate); + + if (clk_set_rate(clk[old_cluster], new_rate * 1000)) + pr_err("%s: clk_set_rate failed: %d, old cluster: %d\n", + __func__, ret, old_cluster); + } + mutex_unlock(&cluster_lock[old_cluster]); + } + + return 0; } /* Set clock frequency */ @@ -52,63 +190,164 @@ static int bL_cpufreq_set_target(struct cpufreq_policy *policy, unsigned int index) { struct cpufreq_freqs freqs; - u32 cpu = policy->cpu, cur_cluster; + u32 cpu = policy->cpu, cur_cluster, new_cluster, actual_cluster; int ret = 0; - cur_cluster = cpu_to_cluster(policy->cpu); + cur_cluster = cpu_to_cluster(cpu); + new_cluster = actual_cluster = per_cpu(physical_cluster, cpu); - freqs.old = bL_cpufreq_get(policy->cpu); + freqs.old = bL_cpufreq_get_rate(cpu); freqs.new = freq_table[cur_cluster][index].frequency; pr_debug("%s: cpu: %d, cluster: %d, oldfreq: %d, target freq: %d, new freq: %d\n", __func__, cpu, cur_cluster, freqs.old, freqs.new, freqs.new); + if (is_bL_switching_enabled()) { + if ((actual_cluster == A15_CLUSTER) && + (freqs.new < clk_big_min)) { + new_cluster = A7_CLUSTER; + } else if ((actual_cluster == A7_CLUSTER) && + (freqs.new > clk_little_max)) { + new_cluster = A15_CLUSTER; + } + } + cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - ret = clk_set_rate(clk[cur_cluster], freqs.new * 1000); - if (ret) { - pr_err("clk_set_rate failed: %d\n", ret); + ret = bL_cpufreq_set_rate(cpu, actual_cluster, new_cluster, freqs.new); + if (ret) freqs.new = freqs.old; - } cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); return ret; } +static inline u32 get_table_count(struct cpufreq_frequency_table *table) +{ + int count; + + for (count = 0; table[count].frequency != CPUFREQ_TABLE_END; count++) + ; + + return count; +} + +/* get the minimum frequency in the cpufreq_frequency_table */ +static inline u32 get_table_min(struct cpufreq_frequency_table *table) +{ + int i; + uint32_t min_freq = ~0; + for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++) + if (table[i].frequency < min_freq) + min_freq = table[i].frequency; + return min_freq; +} + +/* get the maximum frequency in the cpufreq_frequency_table */ +static inline u32 get_table_max(struct cpufreq_frequency_table *table) +{ + int i; + uint32_t max_freq = 0; + for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++) + if (table[i].frequency > max_freq) + max_freq = table[i].frequency; + return max_freq; +} + +static int merge_cluster_tables(void) +{ + int i, j, k = 0, count = 1; + struct cpufreq_frequency_table *table; + + for (i = 0; i < MAX_CLUSTERS; i++) + count += get_table_count(freq_table[i]); + + table = kzalloc(sizeof(*table) * count, GFP_KERNEL); + if (!table) + return -ENOMEM; + + freq_table[MAX_CLUSTERS] = table; + + /* Add in reverse order to get freqs in increasing order */ + for (i = MAX_CLUSTERS - 1; i >= 0; i--) { + for (j = 0; freq_table[i][j].frequency != CPUFREQ_TABLE_END; + j++) { + table[k].frequency = VIRT_FREQ(i, + freq_table[i][j].frequency); + pr_debug("%s: index: %d, freq: %d\n", __func__, k, + table[k].frequency); + k++; + } + } + + table[k].driver_data = k; + table[k].frequency = CPUFREQ_TABLE_END; + + pr_debug("%s: End, table: %p, count: %d\n", __func__, table, k); + + return 0; +} + +static void _put_cluster_clk_and_freq_table(struct device *cpu_dev) +{ + u32 cluster = raw_cpu_to_cluster(cpu_dev->id); + + if (!freq_table[cluster]) + return; + + clk_put(clk[cluster]); + dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]); + dev_dbg(cpu_dev, "%s: cluster: %d\n", __func__, cluster); +} + static void put_cluster_clk_and_freq_table(struct device *cpu_dev) { u32 cluster = cpu_to_cluster(cpu_dev->id); + int i; + + if (atomic_dec_return(&cluster_usage[cluster])) + return; + + if (cluster < MAX_CLUSTERS) + return _put_cluster_clk_and_freq_table(cpu_dev); - if (!atomic_dec_return(&cluster_usage[cluster])) { - clk_put(clk[cluster]); - dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]); - dev_dbg(cpu_dev, "%s: cluster: %d\n", __func__, cluster); + for_each_present_cpu(i) { + struct device *cdev = get_cpu_device(i); + if (!cdev) { + pr_err("%s: failed to get cpu%d device\n", __func__, i); + return; + } + + _put_cluster_clk_and_freq_table(cdev); } + + /* free virtual table */ + kfree(freq_table[cluster]); } -static int get_cluster_clk_and_freq_table(struct device *cpu_dev) +static int _get_cluster_clk_and_freq_table(struct device *cpu_dev) { - u32 cluster = cpu_to_cluster(cpu_dev->id); + u32 cluster = raw_cpu_to_cluster(cpu_dev->id); char name[14] = "cpu-cluster."; int ret; - if (atomic_inc_return(&cluster_usage[cluster]) != 1) + if (freq_table[cluster]) return 0; ret = arm_bL_ops->init_opp_table(cpu_dev); if (ret) { dev_err(cpu_dev, "%s: init_opp_table failed, cpu: %d, err: %d\n", __func__, cpu_dev->id, ret); - goto atomic_dec; + goto out; } ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table[cluster]); if (ret) { dev_err(cpu_dev, "%s: failed to init cpufreq table, cpu: %d, err: %d\n", __func__, cpu_dev->id, ret); - goto atomic_dec; + goto out; } name[12] = cluster + '0'; @@ -125,13 +364,72 @@ static int get_cluster_clk_and_freq_table(struct device *cpu_dev) ret = PTR_ERR(clk[cluster]); dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]); -atomic_dec: - atomic_dec(&cluster_usage[cluster]); +out: dev_err(cpu_dev, "%s: Failed to get data for cluster: %d\n", __func__, cluster); return ret; } +static int get_cluster_clk_and_freq_table(struct device *cpu_dev) +{ + u32 cluster = cpu_to_cluster(cpu_dev->id); + int i, ret; + + if (atomic_inc_return(&cluster_usage[cluster]) != 1) + return 0; + + if (cluster < MAX_CLUSTERS) { + ret = _get_cluster_clk_and_freq_table(cpu_dev); + if (ret) + atomic_dec(&cluster_usage[cluster]); + return ret; + } + + /* + * Get data for all clusters and fill virtual cluster with a merge of + * both + */ + for_each_present_cpu(i) { + struct device *cdev = get_cpu_device(i); + if (!cdev) { + pr_err("%s: failed to get cpu%d device\n", __func__, i); + return -ENODEV; + } + + ret = _get_cluster_clk_and_freq_table(cdev); + if (ret) + goto put_clusters; + } + + ret = merge_cluster_tables(); + if (ret) + goto put_clusters; + + /* Assuming 2 cluster, set clk_big_min and clk_little_max */ + clk_big_min = get_table_min(freq_table[0]); + clk_little_max = VIRT_FREQ(1, get_table_max(freq_table[1])); + + pr_debug("%s: cluster: %d, clk_big_min: %d, clk_little_max: %d\n", + __func__, cluster, clk_big_min, clk_little_max); + + return 0; + +put_clusters: + for_each_present_cpu(i) { + struct device *cdev = get_cpu_device(i); + if (!cdev) { + pr_err("%s: failed to get cpu%d device\n", __func__, i); + return -ENODEV; + } + + _put_cluster_clk_and_freq_table(cdev); + } + + atomic_dec(&cluster_usage[cluster]); + + return ret; +} + /* Per-CPU initialization */ static int bL_cpufreq_init(struct cpufreq_policy *policy) { @@ -158,13 +456,23 @@ static int bL_cpufreq_init(struct cpufreq_policy *policy) return ret; } + if (cur_cluster < MAX_CLUSTERS) { + cpumask_copy(policy->cpus, topology_core_cpumask(policy->cpu)); + + per_cpu(physical_cluster, policy->cpu) = cur_cluster; + } else { + /* Assumption: during init, we are always running on A15 */ + per_cpu(physical_cluster, policy->cpu) = A15_CLUSTER; + } + if (arm_bL_ops->get_transition_latency) policy->cpuinfo.transition_latency = arm_bL_ops->get_transition_latency(cpu_dev); else policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; - cpumask_copy(policy->cpus, topology_core_cpumask(policy->cpu)); + if (is_bL_switching_enabled()) + per_cpu(cpu_last_req_freq, policy->cpu) = clk_get_cpu_rate(policy->cpu); dev_info(cpu_dev, "%s: CPU %d initialized\n", __func__, policy->cpu); return 0; @@ -194,7 +502,7 @@ static struct cpufreq_driver bL_cpufreq_driver = { CPUFREQ_HAVE_GOVERNOR_PER_POLICY, .verify = cpufreq_generic_frequency_table_verify, .target_index = bL_cpufreq_set_target, - .get = bL_cpufreq_get, + .get = bL_cpufreq_get_rate, .init = bL_cpufreq_init, .exit = bL_cpufreq_exit, .attr = cpufreq_generic_attr, @@ -202,7 +510,7 @@ static struct cpufreq_driver bL_cpufreq_driver = { int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops) { - int ret; + int ret, i; if (arm_bL_ops) { pr_debug("%s: Already registered: %s, exiting\n", __func__, @@ -217,6 +525,9 @@ int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops) arm_bL_ops = ops; + for (i = 0; i < MAX_CLUSTERS; i++) + mutex_init(&cluster_lock[i]); + ret = cpufreq_register_driver(&bL_cpufreq_driver); if (ret) { pr_info("%s: Failed registering platform driver: %s, err: %d\n", diff --git a/drivers/cpufreq/arm_big_little.h b/drivers/cpufreq/arm_big_little.h index 79b2ce17884..70f18fc12d4 100644 --- a/drivers/cpufreq/arm_big_little.h +++ b/drivers/cpufreq/arm_big_little.h @@ -34,11 +34,6 @@ struct cpufreq_arm_bL_ops { int (*init_opp_table)(struct device *cpu_dev); }; -static inline int cpu_to_cluster(int cpu) -{ - return topology_physical_package_id(cpu); -} - int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops); void bL_cpufreq_unregister(struct cpufreq_arm_bL_ops *ops); -- cgit v1.2.3-70-g09d2 From 45cac118ffd7c9920b3d85bf551c2205674eb4f2 Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Wed, 30 Oct 2013 15:44:41 -0400 Subject: cpufreq: arm_big_little: reconfigure switcher behavior at run time The b.L switcher can be turned on/off at run time. It is therefore necessary to change the cpufreq driver behavior accordingly. The driver must be unregistered/registered with the cpufreq core to reconfigure freq tables for the virtual or actual CPUs. This is accomplished via the b.L switcher notifier callback. Signed-off-by: Nicolas Pitre Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/arm_big_little.c | 54 +++++++++++++++++++++++++++++++++++++--- 1 file changed, 51 insertions(+), 3 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c index 9986f791232..71f1af93b58 100644 --- a/drivers/cpufreq/arm_big_little.c +++ b/drivers/cpufreq/arm_big_little.c @@ -40,9 +40,12 @@ #define MAX_CLUSTERS 2 #ifdef CONFIG_BL_SWITCHER -#define is_bL_switching_enabled() true +static bool bL_switching_enabled; +#define is_bL_switching_enabled() bL_switching_enabled +#define set_switching_enabled(x) (bL_switching_enabled = (x)) #else #define is_bL_switching_enabled() false +#define set_switching_enabled(x) do { } while (0) #endif #define ACTUAL_FREQ(cluster, freq) ((cluster == A7_CLUSTER) ? freq << 1 : freq) @@ -508,6 +511,38 @@ static struct cpufreq_driver bL_cpufreq_driver = { .attr = cpufreq_generic_attr, }; +static int bL_cpufreq_switcher_notifier(struct notifier_block *nfb, + unsigned long action, void *_arg) +{ + pr_debug("%s: action: %ld\n", __func__, action); + + switch (action) { + case BL_NOTIFY_PRE_ENABLE: + case BL_NOTIFY_PRE_DISABLE: + cpufreq_unregister_driver(&bL_cpufreq_driver); + break; + + case BL_NOTIFY_POST_ENABLE: + set_switching_enabled(true); + cpufreq_register_driver(&bL_cpufreq_driver); + break; + + case BL_NOTIFY_POST_DISABLE: + set_switching_enabled(false); + cpufreq_register_driver(&bL_cpufreq_driver); + break; + + default: + return NOTIFY_DONE; + } + + return NOTIFY_OK; +} + +static struct notifier_block bL_switcher_notifier = { + .notifier_call = bL_cpufreq_switcher_notifier, +}; + int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops) { int ret, i; @@ -525,6 +560,9 @@ int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops) arm_bL_ops = ops; + ret = bL_switcher_get_enabled(); + set_switching_enabled(ret); + for (i = 0; i < MAX_CLUSTERS; i++) mutex_init(&cluster_lock[i]); @@ -534,10 +572,17 @@ int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops) __func__, ops->name, ret); arm_bL_ops = NULL; } else { - pr_info("%s: Registered platform driver: %s\n", __func__, - ops->name); + ret = bL_switcher_register_notifier(&bL_switcher_notifier); + if (ret) { + cpufreq_unregister_driver(&bL_cpufreq_driver); + arm_bL_ops = NULL; + } else { + pr_info("%s: Registered platform driver: %s\n", + __func__, ops->name); + } } + bL_switcher_put_enabled(); return ret; } EXPORT_SYMBOL_GPL(bL_cpufreq_register); @@ -550,7 +595,10 @@ void bL_cpufreq_unregister(struct cpufreq_arm_bL_ops *ops) return; } + bL_switcher_get_enabled(); + bL_switcher_unregister_notifier(&bL_switcher_notifier); cpufreq_unregister_driver(&bL_cpufreq_driver); + bL_switcher_put_enabled(); pr_info("%s: Un-registered platform driver: %s\n", __func__, arm_bL_ops->name); arm_bL_ops = NULL; -- cgit v1.2.3-70-g09d2 From e0a261a207fb5bcbc6cc5db3b51a96d9cbe9b97e Mon Sep 17 00:00:00 2001 From: Dirk Brandewie Date: Wed, 30 Oct 2013 08:38:32 -0700 Subject: cpufreq/intel_pstate: Add static declarations to internal functions Fixes warnings reported by kbuild test robot sparse warnings: (new ones prefixed by >>) drivers/cpufreq/intel_pstate.c:729:6: sparse: symbol 'copy_pid_params' was not declared. Should it be static? drivers/cpufreq/intel_pstate.c:739:6: sparse: symbol 'copy_cpu_funcs' was not declared. Should it be static? Signed-off-by: Dirk Brandewie Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/intel_pstate.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 27c2753909f..81e0062a6d2 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -761,7 +761,7 @@ static int intel_pstate_msrs_not_valid(void) return 0; } -void copy_pid_params(struct pstate_adjust_policy *policy) +static void copy_pid_params(struct pstate_adjust_policy *policy) { pid_params.sample_rate_ms = policy->sample_rate_ms; pid_params.p_gain_pct = policy->p_gain_pct; @@ -771,7 +771,7 @@ void copy_pid_params(struct pstate_adjust_policy *policy) pid_params.setpoint = policy->setpoint; } -void copy_cpu_funcs(struct pstate_funcs *funcs) +static void copy_cpu_funcs(struct pstate_funcs *funcs) { pstate_funcs.get_max = funcs->get_max; pstate_funcs.get_min = funcs->get_min; -- cgit v1.2.3-70-g09d2 From 7dbf694db6ac7c759599316d50d7050efcbd512a Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Tue, 29 Oct 2013 18:56:06 +0530 Subject: cpufreq: distinguish drivers that do asynchronous notifications There are few special cases like exynos5440 which doesn't send POSTCHANGE notification from their ->target() routine and call some kind of bottom halves for doing this work, work/tasklet/etc.. From which they finally send POSTCHANGE notification. Its better if we distinguish them from other cpufreq drivers in some way so that core can handle them specially. So this patch introduces another flag: CPUFREQ_ASYNC_NOTIFICATION, which will be set by such drivers. This also changes exynos5440-cpufreq.c and powernow-k8 in order to set this flag. Acked-by: Amit Daniel Kachhap Acked-by: Kukjin Kim Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/exynos5440-cpufreq.c | 2 +- drivers/cpufreq/powernow-k8.c | 1 + include/linux/cpufreq.h | 7 +++++++ 3 files changed, 9 insertions(+), 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c index 1bf9b060d52..76bef8b078c 100644 --- a/drivers/cpufreq/exynos5440-cpufreq.c +++ b/drivers/cpufreq/exynos5440-cpufreq.c @@ -312,7 +312,7 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy) } static struct cpufreq_driver exynos_driver = { - .flags = CPUFREQ_STICKY, + .flags = CPUFREQ_STICKY | CPUFREQ_ASYNC_NOTIFICATION, .verify = cpufreq_generic_frequency_table_verify, .target_index = exynos_target, .get = exynos_getspeed, diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c index 62a1ce47d3d..0023c7d40a5 100644 --- a/drivers/cpufreq/powernow-k8.c +++ b/drivers/cpufreq/powernow-k8.c @@ -1204,6 +1204,7 @@ out: } static struct cpufreq_driver cpufreq_amd64_driver = { + .flags = CPUFREQ_ASYNC_NOTIFICATION, .verify = cpufreq_generic_frequency_table_verify, .target_index = powernowk8_target, .bios_limit = acpi_processor_get_bios_limit, diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 93a8c34d6c7..5bd6ab9b0c2 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -237,6 +237,13 @@ struct cpufreq_driver { */ #define CPUFREQ_HAVE_GOVERNOR_PER_POLICY (1 << 3) +/* + * Driver will do POSTCHANGE notifications from outside of their ->target() + * routine and so must set cpufreq_driver->flags with this flag, so that core + * can handle them specially. + */ +#define CPUFREQ_ASYNC_NOTIFICATION (1 << 4) + int cpufreq_register_driver(struct cpufreq_driver *driver_data); int cpufreq_unregister_driver(struct cpufreq_driver *driver_data); -- cgit v1.2.3-70-g09d2 From d4019f0a92ab802f385cc9c8ad3ab7b5449712cb Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 14 Aug 2013 19:38:24 +0530 Subject: cpufreq: move freq change notifications to cpufreq core Most of the drivers do following in their ->target_index() routines: struct cpufreq_freqs freqs; freqs.old = old freq... freqs.new = new freq... cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); /* Change rate here */ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); This is replicated over all cpufreq drivers today and there doesn't exists a good enough reason why this shouldn't be moved to cpufreq core instead. There are few special cases though, like exynos5440, which doesn't do everything on the call to ->target_index() routine and call some kind of bottom halves for doing this work, work/tasklet/etc.. They may continue doing notification from their own code as flag: CPUFREQ_ASYNC_NOTIFICATION is already set for them. All drivers are also modified in this patch to avoid breaking 'git bisect', as double notification would happen otherwise. Acked-by: Hans-Christian Egtvedt Acked-by: Jesper Nilsson Acked-by: Linus Walleij Acked-by: Russell King Acked-by: Stephen Warren Tested-by: Andrew Lunn Tested-by: Nicolas Pitre Reviewed-by: Lan Tianyu Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/acpi-cpufreq.c | 14 ++------- drivers/cpufreq/arm_big_little.c | 24 ++++----------- drivers/cpufreq/at32ap-cpufreq.c | 22 ++++++-------- drivers/cpufreq/blackfin-cpufreq.c | 22 +++++--------- drivers/cpufreq/cpufreq-cpu0.c | 33 ++++++++------------- drivers/cpufreq/cpufreq.c | 40 +++++++++++++++++++++++-- drivers/cpufreq/cris-artpec3-cpufreq.c | 8 ----- drivers/cpufreq/cris-etraxfs-cpufreq.c | 8 ----- drivers/cpufreq/davinci-cpufreq.c | 30 +++++++------------ drivers/cpufreq/dbx500-cpufreq.c | 22 +------------- drivers/cpufreq/e_powersaver.c | 23 ++------------- drivers/cpufreq/elanfreq.c | 13 -------- drivers/cpufreq/exynos-cpufreq.c | 28 +++++------------- drivers/cpufreq/ia64-acpi-cpufreq.c | 19 ------------ drivers/cpufreq/imx6q-cpufreq.c | 37 ++++++++++------------- drivers/cpufreq/kirkwood-cpufreq.c | 54 +++++++++++++--------------------- drivers/cpufreq/loongson2_cpufreq.c | 16 ---------- drivers/cpufreq/maple-cpufreq.c | 18 +----------- drivers/cpufreq/omap-cpufreq.c | 38 ++++++++---------------- drivers/cpufreq/p4-clockmod.c | 10 ------- drivers/cpufreq/pasemi-cpufreq.c | 14 +-------- drivers/cpufreq/pmac32-cpufreq.c | 20 +++---------- drivers/cpufreq/pmac64-cpufreq.c | 18 +----------- drivers/cpufreq/ppc-corenet-cpufreq.c | 19 +----------- drivers/cpufreq/ppc_cbe_cpufreq.c | 19 +----------- drivers/cpufreq/pxa2xx-cpufreq.c | 27 ++++------------- drivers/cpufreq/pxa3xx-cpufreq.c | 12 -------- drivers/cpufreq/s3c2416-cpufreq.c | 21 +++---------- drivers/cpufreq/s3c64xx-cpufreq.c | 48 ++++++++++-------------------- drivers/cpufreq/s5pv210-cpufreq.c | 16 ++++------ drivers/cpufreq/sa1100-cpufreq.c | 17 ++++------- drivers/cpufreq/sa1110-cpufreq.c | 12 ++------ drivers/cpufreq/sc520_freq.c | 11 ------- drivers/cpufreq/sparc-us2e-cpufreq.c | 7 ----- drivers/cpufreq/sparc-us3-cpufreq.c | 7 ----- drivers/cpufreq/spear-cpufreq.c | 13 +------- drivers/cpufreq/speedstep-centrino.c | 21 +------------ drivers/cpufreq/speedstep-ich.c | 9 ------ drivers/cpufreq/speedstep-smi.c | 7 ----- drivers/cpufreq/tegra-cpufreq.c | 25 ++++------------ 40 files changed, 198 insertions(+), 624 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c index 889cec0a902..3c060dd5063 100644 --- a/drivers/cpufreq/acpi-cpufreq.c +++ b/drivers/cpufreq/acpi-cpufreq.c @@ -428,14 +428,10 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy, { struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu); struct acpi_processor_performance *perf; - struct cpufreq_freqs freqs; struct drv_cmd cmd; unsigned int next_perf_state = 0; /* Index into perf table */ int result = 0; - pr_debug("acpi_cpufreq_target %d (%d)\n", - data->freq_table[index].frequency, policy->cpu); - if (unlikely(data == NULL || data->acpi_data == NULL || data->freq_table == NULL)) { return -ENODEV; @@ -483,23 +479,17 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy, else cmd.mask = cpumask_of(policy->cpu); - freqs.old = perf->states[perf->state].core_frequency * 1000; - freqs.new = data->freq_table[index].frequency; - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - drv_write(&cmd); if (acpi_pstate_strict) { - if (!check_freqs(cmd.mask, freqs.new, data)) { + if (!check_freqs(cmd.mask, data->freq_table[index].frequency, + data)) { pr_debug("acpi_cpufreq_target failed (%d)\n", policy->cpu); result = -EAGAIN; - freqs.new = freqs.old; } } - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - if (!result) perf->state = next_perf_state; diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c index 71f1af93b58..5519933813e 100644 --- a/drivers/cpufreq/arm_big_little.c +++ b/drivers/cpufreq/arm_big_little.c @@ -192,39 +192,25 @@ bL_cpufreq_set_rate(u32 cpu, u32 old_cluster, u32 new_cluster, u32 rate) static int bL_cpufreq_set_target(struct cpufreq_policy *policy, unsigned int index) { - struct cpufreq_freqs freqs; u32 cpu = policy->cpu, cur_cluster, new_cluster, actual_cluster; - int ret = 0; + unsigned int freqs_new; cur_cluster = cpu_to_cluster(cpu); new_cluster = actual_cluster = per_cpu(physical_cluster, cpu); - freqs.old = bL_cpufreq_get_rate(cpu); - freqs.new = freq_table[cur_cluster][index].frequency; - - pr_debug("%s: cpu: %d, cluster: %d, oldfreq: %d, target freq: %d, new freq: %d\n", - __func__, cpu, cur_cluster, freqs.old, freqs.new, - freqs.new); + freqs_new = freq_table[cur_cluster][index].frequency; if (is_bL_switching_enabled()) { if ((actual_cluster == A15_CLUSTER) && - (freqs.new < clk_big_min)) { + (freqs_new < clk_big_min)) { new_cluster = A7_CLUSTER; } else if ((actual_cluster == A7_CLUSTER) && - (freqs.new > clk_little_max)) { + (freqs_new > clk_little_max)) { new_cluster = A15_CLUSTER; } } - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - - ret = bL_cpufreq_set_rate(cpu, actual_cluster, new_cluster, freqs.new); - if (ret) - freqs.new = freqs.old; - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - - return ret; + return bL_cpufreq_set_rate(cpu, actual_cluster, new_cluster, freqs_new); } static inline u32 get_table_count(struct cpufreq_frequency_table *table) diff --git a/drivers/cpufreq/at32ap-cpufreq.c b/drivers/cpufreq/at32ap-cpufreq.c index 81d07527bde..856ad80418a 100644 --- a/drivers/cpufreq/at32ap-cpufreq.c +++ b/drivers/cpufreq/at32ap-cpufreq.c @@ -37,27 +37,23 @@ static unsigned long loops_per_jiffy_ref; static int at32_set_target(struct cpufreq_policy *policy, unsigned int index) { - struct cpufreq_freqs freqs; + unsigned int old_freq, new_freq; - freqs.old = at32_get_speed(0); - freqs.new = freq_table[index].frequency; + old_freq = at32_get_speed(0); + new_freq = freq_table[index].frequency; if (!ref_freq) { - ref_freq = freqs.old; + ref_freq = old_freq; loops_per_jiffy_ref = boot_cpu_data.loops_per_jiffy; } - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - if (freqs.old < freqs.new) + if (old_freq < new_freq) boot_cpu_data.loops_per_jiffy = cpufreq_scale( - loops_per_jiffy_ref, ref_freq, freqs.new); - clk_set_rate(cpuclk, freqs.new * 1000); - if (freqs.new < freqs.old) + loops_per_jiffy_ref, ref_freq, new_freq); + clk_set_rate(cpuclk, new_freq * 1000); + if (new_freq < old_freq) boot_cpu_data.loops_per_jiffy = cpufreq_scale( - loops_per_jiffy_ref, ref_freq, freqs.new); - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - - pr_debug("cpufreq: set frequency %u Hz\n", freqs.new * 1000); + loops_per_jiffy_ref, ref_freq, new_freq); return 0; } diff --git a/drivers/cpufreq/blackfin-cpufreq.c b/drivers/cpufreq/blackfin-cpufreq.c index 12528b28d45..e9e63fc9c2c 100644 --- a/drivers/cpufreq/blackfin-cpufreq.c +++ b/drivers/cpufreq/blackfin-cpufreq.c @@ -132,27 +132,23 @@ static int bfin_target(struct cpufreq_policy *policy, unsigned int index) #ifndef CONFIG_BF60x unsigned int plldiv; #endif - struct cpufreq_freqs freqs; static unsigned long lpj_ref; static unsigned int lpj_ref_freq; + unsigned int old_freq, new_freq; int ret = 0; #if defined(CONFIG_CYCLES_CLOCKSOURCE) cycles_t cycles; #endif - freqs.old = bfin_getfreq_khz(0); - freqs.new = bfin_freq_table[index].frequency; + old_freq = bfin_getfreq_khz(0); + new_freq = bfin_freq_table[index].frequency; - pr_debug("cpufreq: changing cclk to %lu; target = %u, oldfreq = %u\n", - freqs.new, freqs.new, freqs.old); - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); #ifndef CONFIG_BF60x plldiv = (bfin_read_PLL_DIV() & SSEL) | dpm_state_table[index].csel; bfin_write_PLL_DIV(plldiv); #else - ret = cpu_set_cclk(policy->cpu, freqs.new * 1000); + ret = cpu_set_cclk(policy->cpu, new_freq * 1000); if (ret != 0) { WARN_ONCE(ret, "cpufreq set freq failed %d\n", ret); return ret; @@ -168,17 +164,13 @@ static int bfin_target(struct cpufreq_policy *policy, unsigned int index) #endif if (!lpj_ref_freq) { lpj_ref = loops_per_jiffy; - lpj_ref_freq = freqs.old; + lpj_ref_freq = old_freq; } - if (freqs.new != freqs.old) { + if (new_freq != old_freq) { loops_per_jiffy = cpufreq_scale(lpj_ref, - lpj_ref_freq, freqs.new); + lpj_ref_freq, new_freq); } - /* TODO: just test case for cycles clock source, remove later */ - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - - pr_debug("cpufreq: done\n"); return ret; } diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index 4dbe7efd86e..d4585ce2346 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -37,20 +37,19 @@ static unsigned int cpu0_get_speed(unsigned int cpu) static int cpu0_set_target(struct cpufreq_policy *policy, unsigned int index) { - struct cpufreq_freqs freqs; struct dev_pm_opp *opp; unsigned long volt = 0, volt_old = 0, tol = 0; + unsigned int old_freq, new_freq; long freq_Hz, freq_exact; int ret; freq_Hz = clk_round_rate(cpu_clk, freq_table[index].frequency * 1000); if (freq_Hz < 0) freq_Hz = freq_table[index].frequency * 1000; - freq_exact = freq_Hz; - freqs.new = freq_Hz / 1000; - freqs.old = clk_get_rate(cpu_clk) / 1000; - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); + freq_exact = freq_Hz; + new_freq = freq_Hz / 1000; + old_freq = clk_get_rate(cpu_clk) / 1000; if (!IS_ERR(cpu_reg)) { rcu_read_lock(); @@ -58,9 +57,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy, unsigned int index) if (IS_ERR(opp)) { rcu_read_unlock(); pr_err("failed to find OPP for %ld\n", freq_Hz); - freqs.new = freqs.old; - ret = PTR_ERR(opp); - goto post_notify; + return PTR_ERR(opp); } volt = dev_pm_opp_get_voltage(opp); rcu_read_unlock(); @@ -69,16 +66,15 @@ static int cpu0_set_target(struct cpufreq_policy *policy, unsigned int index) } pr_debug("%u MHz, %ld mV --> %u MHz, %ld mV\n", - freqs.old / 1000, volt_old ? volt_old / 1000 : -1, - freqs.new / 1000, volt ? volt / 1000 : -1); + old_freq / 1000, volt_old ? volt_old / 1000 : -1, + new_freq / 1000, volt ? volt / 1000 : -1); /* scaling up? scale voltage before frequency */ - if (!IS_ERR(cpu_reg) && freqs.new > freqs.old) { + if (!IS_ERR(cpu_reg) && new_freq > old_freq) { ret = regulator_set_voltage_tol(cpu_reg, volt, tol); if (ret) { pr_err("failed to scale voltage up: %d\n", ret); - freqs.new = freqs.old; - goto post_notify; + return ret; } } @@ -87,23 +83,18 @@ static int cpu0_set_target(struct cpufreq_policy *policy, unsigned int index) pr_err("failed to set clock rate: %d\n", ret); if (!IS_ERR(cpu_reg)) regulator_set_voltage_tol(cpu_reg, volt_old, tol); - freqs.new = freqs.old; - goto post_notify; + return ret; } /* scaling down? scale voltage after frequency */ - if (!IS_ERR(cpu_reg) && freqs.new < freqs.old) { + if (!IS_ERR(cpu_reg) && new_freq < old_freq) { ret = regulator_set_voltage_tol(cpu_reg, volt, tol); if (ret) { pr_err("failed to scale voltage down: %d\n", ret); - clk_set_rate(cpu_clk, freqs.old * 1000); - freqs.new = freqs.old; + clk_set_rate(cpu_clk, old_freq * 1000); } } -post_notify: - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - return ret; } diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 6c9cbb9ebd1..02d534da22d 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1669,6 +1669,8 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy, retval = cpufreq_driver->target(policy, target_freq, relation); else if (cpufreq_driver->target_index) { struct cpufreq_frequency_table *freq_table; + struct cpufreq_freqs freqs; + bool notify; int index; freq_table = cpufreq_frequency_get_table(policy->cpu); @@ -1684,10 +1686,42 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy, goto out; } - if (freq_table[index].frequency == policy->cur) + if (freq_table[index].frequency == policy->cur) { retval = 0; - else - retval = cpufreq_driver->target_index(policy, index); + goto out; + } + + notify = !(cpufreq_driver->flags & CPUFREQ_ASYNC_NOTIFICATION); + + if (notify) { + freqs.old = policy->cur; + freqs.new = freq_table[index].frequency; + freqs.flags = 0; + + pr_debug("%s: cpu: %d, oldfreq: %u, new freq: %u\n", + __func__, policy->cpu, freqs.old, + freqs.new); + + cpufreq_notify_transition(policy, &freqs, + CPUFREQ_PRECHANGE); + } + + retval = cpufreq_driver->target_index(policy, index); + if (retval) + pr_err("%s: Failed to change cpu frequency: %d\n", + __func__, retval); + + if (notify) { + /* + * Notify with old freq in case we failed to change + * frequency + */ + if (retval) + freqs.new = freqs.old; + + cpufreq_notify_transition(policy, &freqs, + CPUFREQ_POSTCHANGE); + } } out: diff --git a/drivers/cpufreq/cris-artpec3-cpufreq.c b/drivers/cpufreq/cris-artpec3-cpufreq.c index 841857cf156..86559040c54 100644 --- a/drivers/cpufreq/cris-artpec3-cpufreq.c +++ b/drivers/cpufreq/cris-artpec3-cpufreq.c @@ -29,15 +29,9 @@ static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu) static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state) { - struct cpufreq_freqs freqs; reg_clkgen_rw_clk_ctrl clk_ctrl; clk_ctrl = REG_RD(clkgen, regi_clkgen, rw_clk_ctrl); - freqs.old = cris_freq_get_cpu_frequency(policy->cpu); - freqs.new = cris_freq_table[state].frequency; - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - local_irq_disable(); /* Even though we may be SMP they will share the same clock @@ -50,8 +44,6 @@ static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state) local_irq_enable(); - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - return 0; } diff --git a/drivers/cpufreq/cris-etraxfs-cpufreq.c b/drivers/cpufreq/cris-etraxfs-cpufreq.c index c58811abd96..26d940d40b1 100644 --- a/drivers/cpufreq/cris-etraxfs-cpufreq.c +++ b/drivers/cpufreq/cris-etraxfs-cpufreq.c @@ -29,15 +29,9 @@ static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu) static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state) { - struct cpufreq_freqs freqs; reg_config_rw_clk_ctrl clk_ctrl; clk_ctrl = REG_RD(config, regi_config, rw_clk_ctrl); - freqs.old = cris_freq_get_cpu_frequency(policy->cpu); - freqs.new = cris_freq_table[state].frequency; - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - local_irq_disable(); /* Even though we may be SMP they will share the same clock @@ -50,8 +44,6 @@ static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state) local_irq_enable(); - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - return 0; } diff --git a/drivers/cpufreq/davinci-cpufreq.c b/drivers/cpufreq/davinci-cpufreq.c index 1f5d8a569c7..5e8a854381b 100644 --- a/drivers/cpufreq/davinci-cpufreq.c +++ b/drivers/cpufreq/davinci-cpufreq.c @@ -68,46 +68,36 @@ static unsigned int davinci_getspeed(unsigned int cpu) static int davinci_target(struct cpufreq_policy *policy, unsigned int idx) { - int ret = 0; - struct cpufreq_freqs freqs; struct davinci_cpufreq_config *pdata = cpufreq.dev->platform_data; struct clk *armclk = cpufreq.armclk; + unsigned int old_freq, new_freq; + int ret = 0; - freqs.old = davinci_getspeed(0); - freqs.new = pdata->freq_table[idx].frequency; - - dev_dbg(cpufreq.dev, "transition: %u --> %u\n", freqs.old, freqs.new); - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); + old_freq = davinci_getspeed(0); + new_freq = pdata->freq_table[idx].frequency; /* if moving to higher frequency, up the voltage beforehand */ - if (pdata->set_voltage && freqs.new > freqs.old) { + if (pdata->set_voltage && new_freq > old_freq) { ret = pdata->set_voltage(idx); if (ret) - goto out; + return ret; } ret = clk_set_rate(armclk, idx); if (ret) - goto out; + return ret; if (cpufreq.asyncclk) { ret = clk_set_rate(cpufreq.asyncclk, cpufreq.asyncrate); if (ret) - goto out; + return ret; } /* if moving to lower freq, lower the voltage after lowering freq */ - if (pdata->set_voltage && freqs.new < freqs.old) + if (pdata->set_voltage && new_freq < old_freq) pdata->set_voltage(idx); -out: - if (ret) - freqs.new = freqs.old; - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - - return ret; + return 0; } static int davinci_cpu_init(struct cpufreq_policy *policy) diff --git a/drivers/cpufreq/dbx500-cpufreq.c b/drivers/cpufreq/dbx500-cpufreq.c index 238b16976be..0e67ab96321 100644 --- a/drivers/cpufreq/dbx500-cpufreq.c +++ b/drivers/cpufreq/dbx500-cpufreq.c @@ -22,28 +22,8 @@ static struct clk *armss_clk; static int dbx500_cpufreq_target(struct cpufreq_policy *policy, unsigned int index) { - struct cpufreq_freqs freqs; - int ret; - - freqs.old = policy->cur; - freqs.new = freq_table[index].frequency; - - /* pre-change notification */ - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - /* update armss clk frequency */ - ret = clk_set_rate(armss_clk, freqs.new * 1000); - - if (ret) { - pr_err("dbx500-cpufreq: Failed to set armss_clk to %d Hz: error %d\n", - freqs.new * 1000, ret); - freqs.new = freqs.old; - } - - /* post change notification */ - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - - return ret; + return clk_set_rate(armss_clk, freq_table[index].frequency * 1000); } static unsigned int dbx500_cpufreq_getspeed(unsigned int cpu) diff --git a/drivers/cpufreq/e_powersaver.c b/drivers/cpufreq/e_powersaver.c index b39c4ef60a7..9012b8bb6b6 100644 --- a/drivers/cpufreq/e_powersaver.c +++ b/drivers/cpufreq/e_powersaver.c @@ -107,15 +107,9 @@ static int eps_set_state(struct eps_cpu_data *centaur, struct cpufreq_policy *policy, u32 dest_state) { - struct cpufreq_freqs freqs; u32 lo, hi; - int err = 0; int i; - freqs.old = eps_get(policy->cpu); - freqs.new = centaur->fsb * ((dest_state >> 8) & 0xff); - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - /* Wait while CPU is busy */ rdmsr(MSR_IA32_PERF_STATUS, lo, hi); i = 0; @@ -124,8 +118,7 @@ static int eps_set_state(struct eps_cpu_data *centaur, rdmsr(MSR_IA32_PERF_STATUS, lo, hi); i++; if (unlikely(i > 64)) { - err = -ENODEV; - goto postchange; + return -ENODEV; } } /* Set new multiplier and voltage */ @@ -137,16 +130,10 @@ static int eps_set_state(struct eps_cpu_data *centaur, rdmsr(MSR_IA32_PERF_STATUS, lo, hi); i++; if (unlikely(i > 64)) { - err = -ENODEV; - goto postchange; + return -ENODEV; } } while (lo & ((1 << 16) | (1 << 17))); - /* Return current frequency */ -postchange: - rdmsr(MSR_IA32_PERF_STATUS, lo, hi); - freqs.new = centaur->fsb * ((lo >> 8) & 0xff); - #ifdef DEBUG { u8 current_multiplier, current_voltage; @@ -161,11 +148,7 @@ postchange: current_multiplier); } #endif - if (err) - freqs.new = freqs.old; - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - return err; + return 0; } static int eps_target(struct cpufreq_policy *policy, unsigned int index) diff --git a/drivers/cpufreq/elanfreq.c b/drivers/cpufreq/elanfreq.c index 4ab41539514..de08acff510 100644 --- a/drivers/cpufreq/elanfreq.c +++ b/drivers/cpufreq/elanfreq.c @@ -108,17 +108,6 @@ static unsigned int elanfreq_get_cpu_frequency(unsigned int cpu) static int elanfreq_target(struct cpufreq_policy *policy, unsigned int state) { - struct cpufreq_freqs freqs; - - freqs.old = elanfreq_get_cpu_frequency(0); - freqs.new = elan_multiplier[state].clock; - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - - printk(KERN_INFO "elanfreq: attempting to set frequency to %i kHz\n", - elan_multiplier[state].clock); - - /* * Access to the Elan's internal registers is indexed via * 0x22: Chip Setup & Control Register Index Register (CSCI) @@ -149,8 +138,6 @@ static int elanfreq_target(struct cpufreq_policy *policy, udelay(10000); local_irq_enable(); - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - return 0; } /* diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c index 9982fcb8225..7b6dc06b1bd 100644 --- a/drivers/cpufreq/exynos-cpufreq.c +++ b/drivers/cpufreq/exynos-cpufreq.c @@ -25,7 +25,6 @@ static struct exynos_dvfs_info *exynos_info; static struct regulator *arm_regulator; -static struct cpufreq_freqs freqs; static unsigned int locking_frequency; static bool frequency_locked; @@ -59,18 +58,18 @@ static int exynos_cpufreq_scale(unsigned int target_freq) struct cpufreq_policy *policy = cpufreq_cpu_get(0); unsigned int arm_volt, safe_arm_volt = 0; unsigned int mpll_freq_khz = exynos_info->mpll_freq_khz; + unsigned int old_freq; int index, old_index; int ret = 0; - freqs.old = policy->cur; - freqs.new = target_freq; + old_freq = policy->cur; /* * The policy max have been changed so that we cannot get proper * old_index with cpufreq_frequency_table_target(). Thus, ignore * policy and get the index from the raw freqeuncy table. */ - old_index = exynos_cpufreq_get_index(freqs.old); + old_index = exynos_cpufreq_get_index(old_freq); if (old_index < 0) { ret = old_index; goto out; @@ -95,17 +94,14 @@ static int exynos_cpufreq_scale(unsigned int target_freq) } arm_volt = volt_table[index]; - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - /* When the new frequency is higher than current frequency */ - if ((freqs.new > freqs.old) && !safe_arm_volt) { + if ((target_freq > old_freq) && !safe_arm_volt) { /* Firstly, voltage up to increase frequency */ ret = regulator_set_voltage(arm_regulator, arm_volt, arm_volt); if (ret) { pr_err("%s: failed to set cpu voltage to %d\n", __func__, arm_volt); - freqs.new = freqs.old; - goto post_notify; + return ret; } } @@ -115,22 +111,15 @@ static int exynos_cpufreq_scale(unsigned int target_freq) if (ret) { pr_err("%s: failed to set cpu voltage to %d\n", __func__, safe_arm_volt); - freqs.new = freqs.old; - goto post_notify; + return ret; } } exynos_info->set_freq(old_index, index); -post_notify: - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - - if (ret) - goto out; - /* When the new frequency is lower than current frequency */ - if ((freqs.new < freqs.old) || - ((freqs.new > freqs.old) && safe_arm_volt)) { + if ((target_freq < old_freq) || + ((target_freq > old_freq) && safe_arm_volt)) { /* down the voltage after frequency change */ ret = regulator_set_voltage(arm_regulator, arm_volt, arm_volt); @@ -142,7 +131,6 @@ post_notify: } out: - cpufreq_cpu_put(policy); return ret; diff --git a/drivers/cpufreq/ia64-acpi-cpufreq.c b/drivers/cpufreq/ia64-acpi-cpufreq.c index 4695fa22406..53c6ac637e1 100644 --- a/drivers/cpufreq/ia64-acpi-cpufreq.c +++ b/drivers/cpufreq/ia64-acpi-cpufreq.c @@ -141,7 +141,6 @@ processor_set_freq ( { int ret = 0; u32 value = 0; - struct cpufreq_freqs cpufreq_freqs; cpumask_t saved_mask; int retval; @@ -168,13 +167,6 @@ processor_set_freq ( pr_debug("Transitioning from P%d to P%d\n", data->acpi_data.state, state); - /* cpufreq frequency struct */ - cpufreq_freqs.old = data->freq_table[data->acpi_data.state].frequency; - cpufreq_freqs.new = data->freq_table[state].frequency; - - /* notify cpufreq */ - cpufreq_notify_transition(policy, &cpufreq_freqs, CPUFREQ_PRECHANGE); - /* * First we write the target state's 'control' value to the * control_register. @@ -186,22 +178,11 @@ processor_set_freq ( ret = processor_set_pstate(value); if (ret) { - unsigned int tmp = cpufreq_freqs.new; - cpufreq_notify_transition(policy, &cpufreq_freqs, - CPUFREQ_POSTCHANGE); - cpufreq_freqs.new = cpufreq_freqs.old; - cpufreq_freqs.old = tmp; - cpufreq_notify_transition(policy, &cpufreq_freqs, - CPUFREQ_PRECHANGE); - cpufreq_notify_transition(policy, &cpufreq_freqs, - CPUFREQ_POSTCHANGE); printk(KERN_WARNING "Transition failed with error %d\n", ret); retval = -ENODEV; goto migrate_end; } - cpufreq_notify_transition(policy, &cpufreq_freqs, CPUFREQ_POSTCHANGE); - data->acpi_data.state = state; retval = 0; diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c index 07af3b0de06..4b3f18e5f36 100644 --- a/drivers/cpufreq/imx6q-cpufreq.c +++ b/drivers/cpufreq/imx6q-cpufreq.c @@ -42,14 +42,14 @@ static unsigned int imx6q_get_speed(unsigned int cpu) static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index) { - struct cpufreq_freqs freqs; struct dev_pm_opp *opp; unsigned long freq_hz, volt, volt_old; + unsigned int old_freq, new_freq; int ret; - freqs.new = freq_table[index].frequency; - freq_hz = freqs.new * 1000; - freqs.old = clk_get_rate(arm_clk) / 1000; + new_freq = freq_table[index].frequency; + freq_hz = new_freq * 1000; + old_freq = clk_get_rate(arm_clk) / 1000; rcu_read_lock(); opp = dev_pm_opp_find_freq_ceil(cpu_dev, &freq_hz); @@ -64,26 +64,23 @@ static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index) volt_old = regulator_get_voltage(arm_reg); dev_dbg(cpu_dev, "%u MHz, %ld mV --> %u MHz, %ld mV\n", - freqs.old / 1000, volt_old / 1000, - freqs.new / 1000, volt / 1000); - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); + old_freq / 1000, volt_old / 1000, + new_freq / 1000, volt / 1000); /* scaling up? scale voltage before frequency */ - if (freqs.new > freqs.old) { + if (new_freq > old_freq) { ret = regulator_set_voltage_tol(arm_reg, volt, 0); if (ret) { dev_err(cpu_dev, "failed to scale vddarm up: %d\n", ret); - freqs.new = freqs.old; - goto post_notify; + return ret; } /* * Need to increase vddpu and vddsoc for safety * if we are about to run at 1.2 GHz. */ - if (freqs.new == FREQ_1P2_GHZ / 1000) { + if (new_freq == FREQ_1P2_GHZ / 1000) { regulator_set_voltage_tol(pu_reg, PU_SOC_VOLTAGE_HIGH, 0); regulator_set_voltage_tol(soc_reg, @@ -103,21 +100,20 @@ static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index) clk_set_parent(step_clk, pll2_pfd2_396m_clk); clk_set_parent(pll1_sw_clk, step_clk); if (freq_hz > clk_get_rate(pll2_pfd2_396m_clk)) { - clk_set_rate(pll1_sys_clk, freqs.new * 1000); + clk_set_rate(pll1_sys_clk, new_freq * 1000); clk_set_parent(pll1_sw_clk, pll1_sys_clk); } /* Ensure the arm clock divider is what we expect */ - ret = clk_set_rate(arm_clk, freqs.new * 1000); + ret = clk_set_rate(arm_clk, new_freq * 1000); if (ret) { dev_err(cpu_dev, "failed to set clock rate: %d\n", ret); regulator_set_voltage_tol(arm_reg, volt_old, 0); - freqs.new = freqs.old; - goto post_notify; + return ret; } /* scaling down? scale voltage after frequency */ - if (freqs.new < freqs.old) { + if (new_freq < old_freq) { ret = regulator_set_voltage_tol(arm_reg, volt, 0); if (ret) { dev_warn(cpu_dev, @@ -125,7 +121,7 @@ static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index) ret = 0; } - if (freqs.old == FREQ_1P2_GHZ / 1000) { + if (old_freq == FREQ_1P2_GHZ / 1000) { regulator_set_voltage_tol(pu_reg, PU_SOC_VOLTAGE_NORMAL, 0); regulator_set_voltage_tol(soc_reg, @@ -133,10 +129,7 @@ static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index) } } -post_notify: - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - - return ret; + return 0; } static int imx6q_cpufreq_init(struct cpufreq_policy *policy) diff --git a/drivers/cpufreq/kirkwood-cpufreq.c b/drivers/cpufreq/kirkwood-cpufreq.c index 0ae4dd7e1f2..0767a4e29df 100644 --- a/drivers/cpufreq/kirkwood-cpufreq.c +++ b/drivers/cpufreq/kirkwood-cpufreq.c @@ -58,48 +58,34 @@ static unsigned int kirkwood_cpufreq_get_cpu_frequency(unsigned int cpu) static int kirkwood_cpufreq_target(struct cpufreq_policy *policy, unsigned int index) { - struct cpufreq_freqs freqs; unsigned int state = kirkwood_freq_table[index].driver_data; unsigned long reg; - freqs.old = kirkwood_cpufreq_get_cpu_frequency(0); - freqs.new = kirkwood_freq_table[index].frequency; + local_irq_disable(); - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); + /* Disable interrupts to the CPU */ + reg = readl_relaxed(priv.base); + reg |= CPU_SW_INT_BLK; + writel_relaxed(reg, priv.base); - dev_dbg(priv.dev, "Attempting to set frequency to %i KHz\n", - kirkwood_freq_table[index].frequency); - dev_dbg(priv.dev, "old frequency was %i KHz\n", - kirkwood_cpufreq_get_cpu_frequency(0)); - - if (freqs.old != freqs.new) { - local_irq_disable(); - - /* Disable interrupts to the CPU */ - reg = readl_relaxed(priv.base); - reg |= CPU_SW_INT_BLK; - writel_relaxed(reg, priv.base); - - switch (state) { - case STATE_CPU_FREQ: - clk_disable(priv.powersave_clk); - break; - case STATE_DDR_FREQ: - clk_enable(priv.powersave_clk); - break; - } + switch (state) { + case STATE_CPU_FREQ: + clk_disable(priv.powersave_clk); + break; + case STATE_DDR_FREQ: + clk_enable(priv.powersave_clk); + break; + } - /* Wait-for-Interrupt, while the hardware changes frequency */ - cpu_do_idle(); + /* Wait-for-Interrupt, while the hardware changes frequency */ + cpu_do_idle(); - /* Enable interrupts to the CPU */ - reg = readl_relaxed(priv.base); - reg &= ~CPU_SW_INT_BLK; - writel_relaxed(reg, priv.base); + /* Enable interrupts to the CPU */ + reg = readl_relaxed(priv.base); + reg &= ~CPU_SW_INT_BLK; + writel_relaxed(reg, priv.base); - local_irq_enable(); - } - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); + local_irq_enable(); return 0; } diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c index 41a8e2cdf94..a4360921810 100644 --- a/drivers/cpufreq/loongson2_cpufreq.c +++ b/drivers/cpufreq/loongson2_cpufreq.c @@ -57,7 +57,6 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy, { unsigned int cpu = policy->cpu; cpumask_t cpus_allowed; - struct cpufreq_freqs freqs; unsigned int freq; cpus_allowed = current->cpus_allowed; @@ -67,26 +66,11 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy, ((cpu_clock_freq / 1000) * loongson2_clockmod_table[index].driver_data) / 8; - pr_debug("cpufreq: requested frequency %u Hz\n", - loongson2_clockmod_table[index].frequency * 1000); - - freqs.old = loongson2_cpufreq_get(cpu); - freqs.new = freq; - freqs.flags = 0; - - /* notifiers */ - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - set_cpus_allowed_ptr(current, &cpus_allowed); /* setting the cpu frequency */ clk_set_rate(cpuclk, freq); - /* notifiers */ - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - - pr_debug("cpufreq: set frequency %u kHz\n", freq); - return 0; } diff --git a/drivers/cpufreq/maple-cpufreq.c b/drivers/cpufreq/maple-cpufreq.c index 4e2da0874bf..c4dfa42a75a 100644 --- a/drivers/cpufreq/maple-cpufreq.c +++ b/drivers/cpufreq/maple-cpufreq.c @@ -69,8 +69,6 @@ static struct cpufreq_frequency_table maple_cpu_freqs[] = { */ static int maple_pmode_cur; -static DEFINE_MUTEX(maple_switch_mutex); - static const u32 *maple_pmode_data; static int maple_pmode_max; @@ -133,21 +131,7 @@ static int maple_scom_query_freq(void) static int maple_cpufreq_target(struct cpufreq_policy *policy, unsigned int index) { - struct cpufreq_freqs freqs; - int rc; - - mutex_lock(&maple_switch_mutex); - - freqs.old = maple_cpu_freqs[maple_pmode_cur].frequency; - freqs.new = maple_cpu_freqs[index].frequency; - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - rc = maple_scom_switch_freq(index); - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - - mutex_unlock(&maple_switch_mutex); - - return rc; + return maple_scom_switch_freq(index); } static unsigned int maple_cpufreq_get_speed(unsigned int cpu) diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c index b5512712298..be6d14307aa 100644 --- a/drivers/cpufreq/omap-cpufreq.c +++ b/drivers/cpufreq/omap-cpufreq.c @@ -53,15 +53,14 @@ static unsigned int omap_getspeed(unsigned int cpu) static int omap_target(struct cpufreq_policy *policy, unsigned int index) { - int r, ret = 0; - struct cpufreq_freqs freqs; struct dev_pm_opp *opp; unsigned long freq, volt = 0, volt_old = 0, tol = 0; + unsigned int old_freq, new_freq; - freqs.old = omap_getspeed(policy->cpu); - freqs.new = freq_table[index].frequency; + old_freq = omap_getspeed(policy->cpu); + new_freq = freq_table[index].frequency; - freq = freqs.new * 1000; + freq = new_freq * 1000; ret = clk_round_rate(mpu_clk, freq); if (IS_ERR_VALUE(ret)) { dev_warn(mpu_dev, @@ -77,7 +76,7 @@ static int omap_target(struct cpufreq_policy *policy, unsigned int index) if (IS_ERR(opp)) { rcu_read_unlock(); dev_err(mpu_dev, "%s: unable to find MPU OPP for %d\n", - __func__, freqs.new); + __func__, new_freq); return -EINVAL; } volt = dev_pm_opp_get_voltage(opp); @@ -87,43 +86,32 @@ static int omap_target(struct cpufreq_policy *policy, unsigned int index) } dev_dbg(mpu_dev, "cpufreq-omap: %u MHz, %ld mV --> %u MHz, %ld mV\n", - freqs.old / 1000, volt_old ? volt_old / 1000 : -1, - freqs.new / 1000, volt ? volt / 1000 : -1); - - /* notifiers */ - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); + old_freq / 1000, volt_old ? volt_old / 1000 : -1, + new_freq / 1000, volt ? volt / 1000 : -1); /* scaling up? scale voltage before frequency */ - if (mpu_reg && (freqs.new > freqs.old)) { + if (mpu_reg && (new_freq > old_freq)) { r = regulator_set_voltage(mpu_reg, volt - tol, volt + tol); if (r < 0) { dev_warn(mpu_dev, "%s: unable to scale voltage up.\n", __func__); - freqs.new = freqs.old; - goto done; + return r; } } - ret = clk_set_rate(mpu_clk, freqs.new * 1000); + ret = clk_set_rate(mpu_clk, new_freq * 1000); /* scaling down? scale voltage after frequency */ - if (mpu_reg && (freqs.new < freqs.old)) { + if (mpu_reg && (new_freq < old_freq)) { r = regulator_set_voltage(mpu_reg, volt - tol, volt + tol); if (r < 0) { dev_warn(mpu_dev, "%s: unable to scale voltage down.\n", __func__); - ret = clk_set_rate(mpu_clk, freqs.old * 1000); - freqs.new = freqs.old; - goto done; + clk_set_rate(mpu_clk, old_freq * 1000); + return r; } } - freqs.new = omap_getspeed(policy->cpu); - -done: - /* notifiers */ - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - return ret; } diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c index 3c23053afdf..3d1cba9fd5f 100644 --- a/drivers/cpufreq/p4-clockmod.c +++ b/drivers/cpufreq/p4-clockmod.c @@ -107,15 +107,8 @@ static struct cpufreq_frequency_table p4clockmod_table[] = { static int cpufreq_p4_target(struct cpufreq_policy *policy, unsigned int index) { - struct cpufreq_freqs freqs; int i; - freqs.old = cpufreq_p4_get(policy->cpu); - freqs.new = stock_freq * p4clockmod_table[index].driver_data / 8; - - /* notifiers */ - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - /* run on each logical CPU, * see section 13.15.3 of IA32 Intel Architecture Software * Developer's Manual, Volume 3 @@ -123,9 +116,6 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy, unsigned int index) for_each_cpu(i, policy->cpus) cpufreq_p4_setdc(i, p4clockmod_table[index].driver_data); - /* notifiers */ - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - return 0; } diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c index 17424ddc7f6..1c331369b15 100644 --- a/drivers/cpufreq/pasemi-cpufreq.c +++ b/drivers/cpufreq/pasemi-cpufreq.c @@ -51,8 +51,6 @@ static void __iomem *sdcpwr_mapbase; static void __iomem *sdcasr_mapbase; -static DEFINE_MUTEX(pas_switch_mutex); - /* Current astate, is used when waking up from power savings on * one core, in case the other core has switched states during * the idle time. @@ -242,15 +240,8 @@ static int pas_cpufreq_cpu_exit(struct cpufreq_policy *policy) static int pas_cpufreq_target(struct cpufreq_policy *policy, unsigned int pas_astate_new) { - struct cpufreq_freqs freqs; int i; - freqs.old = policy->cur; - freqs.new = pas_freqs[pas_astate_new].frequency; - - mutex_lock(&pas_switch_mutex); - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - pr_debug("setting frequency for cpu %d to %d kHz, 1/%d of max frequency\n", policy->cpu, pas_freqs[pas_astate_new].frequency, @@ -261,10 +252,7 @@ static int pas_cpufreq_target(struct cpufreq_policy *policy, for_each_online_cpu(i) set_astate(i, pas_astate_new); - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - mutex_unlock(&pas_switch_mutex); - - ppc_proc_freq = freqs.new * 1000ul; + ppc_proc_freq = pas_freqs[pas_astate_new].frequency * 1000ul; return 0; } diff --git a/drivers/cpufreq/pmac32-cpufreq.c b/drivers/cpufreq/pmac32-cpufreq.c index 05f705e1b7a..cf55d202f33 100644 --- a/drivers/cpufreq/pmac32-cpufreq.c +++ b/drivers/cpufreq/pmac32-cpufreq.c @@ -331,21 +331,11 @@ static int pmu_set_cpu_speed(int low_speed) return 0; } -static int do_set_cpu_speed(struct cpufreq_policy *policy, int speed_mode, - int notify) +static int do_set_cpu_speed(struct cpufreq_policy *policy, int speed_mode) { - struct cpufreq_freqs freqs; unsigned long l3cr; static unsigned long prev_l3cr; - freqs.old = cur_freq; - freqs.new = (speed_mode == CPUFREQ_HIGH) ? hi_freq : low_freq; - - if (freqs.old == freqs.new) - return 0; - - if (notify) - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); if (speed_mode == CPUFREQ_LOW && cpu_has_feature(CPU_FTR_L3CR)) { l3cr = _get_L3CR(); @@ -361,8 +351,6 @@ static int do_set_cpu_speed(struct cpufreq_policy *policy, int speed_mode, if ((prev_l3cr & L3CR_L3E) && l3cr != prev_l3cr) _set_L3CR(prev_l3cr); } - if (notify) - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); cur_freq = (speed_mode == CPUFREQ_HIGH) ? hi_freq : low_freq; return 0; @@ -378,7 +366,7 @@ static int pmac_cpufreq_target( struct cpufreq_policy *policy, { int rc; - rc = do_set_cpu_speed(policy, index, 1); + rc = do_set_cpu_speed(policy, index); ppc_proc_freq = cur_freq * 1000ul; return rc; @@ -420,7 +408,7 @@ static int pmac_cpufreq_suspend(struct cpufreq_policy *policy) no_schedule = 1; sleep_freq = cur_freq; if (cur_freq == low_freq && !is_pmu_based) - do_set_cpu_speed(policy, CPUFREQ_HIGH, 0); + do_set_cpu_speed(policy, CPUFREQ_HIGH); return 0; } @@ -437,7 +425,7 @@ static int pmac_cpufreq_resume(struct cpufreq_policy *policy) * probably high speed due to our suspend() routine */ do_set_cpu_speed(policy, sleep_freq == low_freq ? - CPUFREQ_LOW : CPUFREQ_HIGH, 0); + CPUFREQ_LOW : CPUFREQ_HIGH); ppc_proc_freq = cur_freq * 1000ul; diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c index 234b598ce41..6a338f8c386 100644 --- a/drivers/cpufreq/pmac64-cpufreq.c +++ b/drivers/cpufreq/pmac64-cpufreq.c @@ -79,8 +79,6 @@ static void (*g5_switch_volt)(int speed_mode); static int (*g5_switch_freq)(int speed_mode); static int (*g5_query_freq)(void); -static DEFINE_MUTEX(g5_switch_mutex); - static unsigned long transition_latency; #ifdef CONFIG_PMAC_SMU @@ -314,21 +312,7 @@ static int g5_pfunc_query_freq(void) static int g5_cpufreq_target(struct cpufreq_policy *policy, unsigned int index) { - struct cpufreq_freqs freqs; - int rc; - - mutex_lock(&g5_switch_mutex); - - freqs.old = g5_cpu_freqs[g5_pmode_cur].frequency; - freqs.new = g5_cpu_freqs[index].frequency; - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - rc = g5_switch_freq(index); - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - - mutex_unlock(&g5_switch_mutex); - - return rc; + return g5_switch_freq(index); } static unsigned int g5_cpufreq_get_speed(unsigned int cpu) diff --git a/drivers/cpufreq/ppc-corenet-cpufreq.c b/drivers/cpufreq/ppc-corenet-cpufreq.c index 79d8e9c46b6..3f7be46d2b2 100644 --- a/drivers/cpufreq/ppc-corenet-cpufreq.c +++ b/drivers/cpufreq/ppc-corenet-cpufreq.c @@ -69,8 +69,6 @@ static const struct soc_data sdata[] = { static u32 min_cpufreq; static const u32 *fmask; -/* serialize frequency changes */ -static DEFINE_MUTEX(cpufreq_lock); static DEFINE_PER_CPU(struct cpu_data *, cpu_data); /* cpumask in a cluster */ @@ -253,26 +251,11 @@ static int __exit corenet_cpufreq_cpu_exit(struct cpufreq_policy *policy) static int corenet_cpufreq_target(struct cpufreq_policy *policy, unsigned int index) { - struct cpufreq_freqs freqs; struct clk *parent; - int ret; struct cpu_data *data = per_cpu(cpu_data, policy->cpu); - freqs.old = policy->cur; - freqs.new = data->table[index].frequency; - - mutex_lock(&cpufreq_lock); - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - parent = of_clk_get(data->parent, data->table[index].driver_data); - ret = clk_set_parent(data->clk, parent); - if (ret) - freqs.new = freqs.old; - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - mutex_unlock(&cpufreq_lock); - - return ret; + return clk_set_parent(data->clk, parent); } static struct cpufreq_driver ppc_corenet_cpufreq_driver = { diff --git a/drivers/cpufreq/ppc_cbe_cpufreq.c b/drivers/cpufreq/ppc_cbe_cpufreq.c index 52f707d5f45..e42ca9c31ce 100644 --- a/drivers/cpufreq/ppc_cbe_cpufreq.c +++ b/drivers/cpufreq/ppc_cbe_cpufreq.c @@ -30,9 +30,6 @@ #include "ppc_cbe_cpufreq.h" -static DEFINE_MUTEX(cbe_switch_mutex); - - /* the CBE supports an 8 step frequency scaling */ static struct cpufreq_frequency_table cbe_freqs[] = { {1, 0}, @@ -131,27 +128,13 @@ static int cbe_cpufreq_cpu_init(struct cpufreq_policy *policy) static int cbe_cpufreq_target(struct cpufreq_policy *policy, unsigned int cbe_pmode_new) { - int rc; - struct cpufreq_freqs freqs; - - freqs.old = policy->cur; - freqs.new = cbe_freqs[cbe_pmode_new].frequency; - - mutex_lock(&cbe_switch_mutex); - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - pr_debug("setting frequency for cpu %d to %d kHz, " \ "1/%d of max frequency\n", policy->cpu, cbe_freqs[cbe_pmode_new].frequency, cbe_freqs[cbe_pmode_new].driver_data); - rc = set_pmode(policy->cpu, cbe_pmode_new); - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - mutex_unlock(&cbe_switch_mutex); - - return rc; + return set_pmode(policy->cpu, cbe_pmode_new); } static struct cpufreq_driver cbe_cpufreq_driver = { diff --git a/drivers/cpufreq/pxa2xx-cpufreq.c b/drivers/cpufreq/pxa2xx-cpufreq.c index 183bc13f13e..0a0f4369636 100644 --- a/drivers/cpufreq/pxa2xx-cpufreq.c +++ b/drivers/cpufreq/pxa2xx-cpufreq.c @@ -271,7 +271,6 @@ static int pxa_set_target(struct cpufreq_policy *policy, unsigned int idx) { struct cpufreq_frequency_table *pxa_freqs_table; pxa_freqs_t *pxa_freq_settings; - struct cpufreq_freqs freqs; unsigned long flags; unsigned int new_freq_cpu, new_freq_mem; unsigned int unused, preset_mdrefr, postset_mdrefr, cclkcfg; @@ -282,24 +281,17 @@ static int pxa_set_target(struct cpufreq_policy *policy, unsigned int idx) new_freq_cpu = pxa_freq_settings[idx].khz; new_freq_mem = pxa_freq_settings[idx].membus; - freqs.old = policy->cur; - freqs.new = new_freq_cpu; if (freq_debug) pr_debug("Changing CPU frequency to %d Mhz, (SDRAM %d Mhz)\n", - freqs.new / 1000, (pxa_freq_settings[idx].div2) ? + new_freq_cpu / 1000, (pxa_freq_settings[idx].div2) ? (new_freq_mem / 2000) : (new_freq_mem / 1000)); - if (vcc_core && freqs.new > freqs.old) + if (vcc_core && new_freq_cpu > policy->cur) { ret = pxa_cpufreq_change_voltage(&pxa_freq_settings[idx]); - if (ret) - return ret; - /* - * Tell everyone what we're about to do... - * you should add a notify client with any platform specific - * Vcc changing capability - */ - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); + if (ret) + return ret; + } /* Calculate the next MDREFR. If we're slowing down the SDRAM clock * we need to preset the smaller DRI before the change. If we're @@ -349,13 +341,6 @@ static int pxa_set_target(struct cpufreq_policy *policy, unsigned int idx) : "r4", "r5"); local_irq_restore(flags); - /* - * Tell everyone what we've just done... - * you should add a notify client with any platform specific - * SDRAM refresh timer adjustments - */ - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - /* * Even if voltage setting fails, we don't report it, as the frequency * change succeeded. The voltage reduction is not a critical failure, @@ -365,7 +350,7 @@ static int pxa_set_target(struct cpufreq_policy *policy, unsigned int idx) * bug is triggered (seems a deadlock). Should anybody find out where, * the "return 0" should become a "return ret". */ - if (vcc_core && freqs.new < freqs.old) + if (vcc_core && new_freq_cpu < policy->cur) ret = pxa_cpufreq_change_voltage(&pxa_freq_settings[idx]); return 0; diff --git a/drivers/cpufreq/pxa3xx-cpufreq.c b/drivers/cpufreq/pxa3xx-cpufreq.c index 132e37d578c..93840048dd1 100644 --- a/drivers/cpufreq/pxa3xx-cpufreq.c +++ b/drivers/cpufreq/pxa3xx-cpufreq.c @@ -158,7 +158,6 @@ static unsigned int pxa3xx_cpufreq_get(unsigned int cpu) static int pxa3xx_cpufreq_set(struct cpufreq_policy *policy, unsigned int index) { struct pxa3xx_freq_info *next; - struct cpufreq_freqs freqs; unsigned long flags; if (policy->cpu != 0) @@ -166,22 +165,11 @@ static int pxa3xx_cpufreq_set(struct cpufreq_policy *policy, unsigned int index) next = &pxa3xx_freqs[index]; - freqs.old = policy->cur; - freqs.new = next->cpufreq_mhz * 1000; - - pr_debug("CPU frequency from %d MHz to %d MHz%s\n", - freqs.old / 1000, freqs.new / 1000, - (freqs.old == freqs.new) ? " (skipped)" : ""); - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - local_irq_save(flags); __update_core_freq(next); __update_bus_freq(next); local_irq_restore(flags); - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - return 0; } diff --git a/drivers/cpufreq/s3c2416-cpufreq.c b/drivers/cpufreq/s3c2416-cpufreq.c index 4188accd34a..8d904a00027 100644 --- a/drivers/cpufreq/s3c2416-cpufreq.c +++ b/drivers/cpufreq/s3c2416-cpufreq.c @@ -220,7 +220,7 @@ static int s3c2416_cpufreq_set_target(struct cpufreq_policy *policy, unsigned int index) { struct s3c2416_data *s3c_freq = &s3c2416_cpufreq; - struct cpufreq_freqs freqs; + unsigned int new_freq; int idx, ret, to_dvs = 0; mutex_lock(&cpufreq_lock); @@ -237,25 +237,14 @@ static int s3c2416_cpufreq_set_target(struct cpufreq_policy *policy, goto out; } - freqs.flags = 0; - freqs.old = s3c_freq->is_dvs ? FREQ_DVS - : clk_get_rate(s3c_freq->armclk) / 1000; - /* When leavin dvs mode, always switch the armdiv to the hclk rate * The S3C2416 has stability issues when switching directly to * higher frequencies. */ - freqs.new = (s3c_freq->is_dvs && !to_dvs) + new_freq = (s3c_freq->is_dvs && !to_dvs) ? clk_get_rate(s3c_freq->hclk) / 1000 : s3c_freq->freq_table[index].frequency; - pr_debug("cpufreq: Transition %d-%dkHz\n", freqs.old, freqs.new); - - if (!to_dvs && freqs.old == freqs.new) - goto out; - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - if (to_dvs) { pr_debug("cpufreq: enter dvs\n"); ret = s3c2416_cpufreq_enter_dvs(s3c_freq, idx); @@ -263,12 +252,10 @@ static int s3c2416_cpufreq_set_target(struct cpufreq_policy *policy, pr_debug("cpufreq: leave dvs\n"); ret = s3c2416_cpufreq_leave_dvs(s3c_freq, idx); } else { - pr_debug("cpufreq: change armdiv to %dkHz\n", freqs.new); - ret = s3c2416_cpufreq_set_armdiv(s3c_freq, freqs.new); + pr_debug("cpufreq: change armdiv to %dkHz\n", new_freq); + ret = s3c2416_cpufreq_set_armdiv(s3c_freq, new_freq); } - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - out: mutex_unlock(&cpufreq_lock); diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c index 8bdcf32a441..67e302eeefe 100644 --- a/drivers/cpufreq/s3c64xx-cpufreq.c +++ b/drivers/cpufreq/s3c64xx-cpufreq.c @@ -65,54 +65,46 @@ static unsigned int s3c64xx_cpufreq_get_speed(unsigned int cpu) static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy, unsigned int index) { - int ret; - struct cpufreq_freqs freqs; struct s3c64xx_dvfs *dvfs; + unsigned int old_freq, new_freq; + int ret; - freqs.old = clk_get_rate(armclk) / 1000; - freqs.new = s3c64xx_freq_table[index].frequency; - freqs.flags = 0; + old_freq = clk_get_rate(armclk) / 1000; + new_freq = s3c64xx_freq_table[index].frequency; dvfs = &s3c64xx_dvfs_table[s3c64xx_freq_table[index].driver_data]; - pr_debug("Transition %d-%dkHz\n", freqs.old, freqs.new); - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - #ifdef CONFIG_REGULATOR - if (vddarm && freqs.new > freqs.old) { + if (vddarm && new_freq > old_freq) { ret = regulator_set_voltage(vddarm, dvfs->vddarm_min, dvfs->vddarm_max); if (ret != 0) { pr_err("Failed to set VDDARM for %dkHz: %d\n", - freqs.new, ret); - freqs.new = freqs.old; - goto post_notify; + new_freq, ret); + return ret; } } #endif - ret = clk_set_rate(armclk, freqs.new * 1000); + ret = clk_set_rate(armclk, new_freq * 1000); if (ret < 0) { pr_err("Failed to set rate %dkHz: %d\n", - freqs.new, ret); - freqs.new = freqs.old; + new_freq, ret); + return ret; } -post_notify: - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - if (ret) - goto err; - #ifdef CONFIG_REGULATOR - if (vddarm && freqs.new < freqs.old) { + if (vddarm && new_freq < old_freq) { ret = regulator_set_voltage(vddarm, dvfs->vddarm_min, dvfs->vddarm_max); if (ret != 0) { pr_err("Failed to set VDDARM for %dkHz: %d\n", - freqs.new, ret); - goto err_clk; + new_freq, ret); + if (clk_set_rate(armclk, old_freq * 1000) < 0) + pr_err("Failed to restore original clock rate\n"); + + return ret; } } #endif @@ -121,14 +113,6 @@ post_notify: clk_get_rate(armclk) / 1000); return 0; - -err_clk: - if (clk_set_rate(armclk, freqs.old * 1000) < 0) - pr_err("Failed to restore original clock rate\n"); -err: - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - - return ret; } #ifdef CONFIG_REGULATOR diff --git a/drivers/cpufreq/s5pv210-cpufreq.c b/drivers/cpufreq/s5pv210-cpufreq.c index 5978b94e034..e3973dae28a 100644 --- a/drivers/cpufreq/s5pv210-cpufreq.c +++ b/drivers/cpufreq/s5pv210-cpufreq.c @@ -26,7 +26,6 @@ static struct clk *cpu_clk; static struct clk *dmc0_clk; static struct clk *dmc1_clk; -static struct cpufreq_freqs freqs; static DEFINE_MUTEX(set_freq_lock); /* APLL M,P,S values for 1G/800Mhz */ @@ -179,6 +178,7 @@ static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index) unsigned int priv_index; unsigned int pll_changing = 0; unsigned int bus_speed_changing = 0; + unsigned int old_freq, new_freq; int arm_volt, int_volt; int ret = 0; @@ -193,12 +193,12 @@ static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index) goto exit; } - freqs.old = s5pv210_getspeed(0); - freqs.new = s5pv210_freq_table[index].frequency; + old_freq = s5pv210_getspeed(0); + new_freq = s5pv210_freq_table[index].frequency; /* Finding current running level index */ if (cpufreq_frequency_table_target(policy, s5pv210_freq_table, - freqs.old, CPUFREQ_RELATION_H, + old_freq, CPUFREQ_RELATION_H, &priv_index)) { ret = -EINVAL; goto exit; @@ -207,7 +207,7 @@ static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index) arm_volt = dvs_conf[index].arm_volt; int_volt = dvs_conf[index].int_volt; - if (freqs.new > freqs.old) { + if (new_freq > old_freq) { ret = regulator_set_voltage(arm_regulator, arm_volt, arm_volt_max); if (ret) @@ -219,8 +219,6 @@ static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index) goto exit; } - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - /* Check if there need to change PLL */ if ((index == L0) || (priv_index == L0)) pll_changing = 1; @@ -431,9 +429,7 @@ static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index) } } - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - - if (freqs.new < freqs.old) { + if (new_freq < old_freq) { regulator_set_voltage(int_regulator, int_volt, int_volt_max); diff --git a/drivers/cpufreq/sa1100-cpufreq.c b/drivers/cpufreq/sa1100-cpufreq.c index b0da1fe40b1..623da742f8e 100644 --- a/drivers/cpufreq/sa1100-cpufreq.c +++ b/drivers/cpufreq/sa1100-cpufreq.c @@ -180,22 +180,17 @@ static void sa1100_update_dram_timings(int current_speed, int new_speed) static int sa1100_target(struct cpufreq_policy *policy, unsigned int ppcr) { unsigned int cur = sa11x0_getspeed(0); - struct cpufreq_freqs freqs; + unsigned int new_freq; - freqs.old = cur; - freqs.new = sa11x0_freq_table[ppcr].frequency; + new_freq = sa11x0_freq_table[ppcr].frequency; - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - - if (freqs.new > cur) - sa1100_update_dram_timings(cur, freqs.new); + if (new_freq > cur) + sa1100_update_dram_timings(cur, new_freq); PPCR = ppcr; - if (freqs.new < cur) - sa1100_update_dram_timings(cur, freqs.new); - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); + if (new_freq < cur) + sa1100_update_dram_timings(cur, new_freq); return 0; } diff --git a/drivers/cpufreq/sa1110-cpufreq.c b/drivers/cpufreq/sa1110-cpufreq.c index 55b1818c3e4..2c2b2e601d1 100644 --- a/drivers/cpufreq/sa1110-cpufreq.c +++ b/drivers/cpufreq/sa1110-cpufreq.c @@ -232,15 +232,11 @@ sdram_update_refresh(u_int cpu_khz, struct sdram_params *sdram) static int sa1110_target(struct cpufreq_policy *policy, unsigned int ppcr) { struct sdram_params *sdram = &sdram_params; - struct cpufreq_freqs freqs; struct sdram_info sd; unsigned long flags; unsigned int unused; - freqs.old = sa11x0_getspeed(0); - freqs.new = sa11x0_freq_table[ppcr].frequency; - - sdram_calculate_timing(&sd, freqs.new, sdram); + sdram_calculate_timing(&sd, sa11x0_freq_table[ppcr].frequency, sdram); #if 0 /* @@ -259,8 +255,6 @@ static int sa1110_target(struct cpufreq_policy *policy, unsigned int ppcr) sd.mdcas[2] = 0xaaaaaaaa; #endif - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - /* * The clock could be going away for some time. Set the SDRAMs * to refresh rapidly (every 64 memory clock cycles). To get @@ -305,9 +299,7 @@ static int sa1110_target(struct cpufreq_policy *policy, unsigned int ppcr) /* * Now, return the SDRAM refresh back to normal. */ - sdram_update_refresh(freqs.new, sdram); - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); + sdram_update_refresh(sa11x0_freq_table[ppcr].frequency, sdram); return 0; } diff --git a/drivers/cpufreq/sc520_freq.c b/drivers/cpufreq/sc520_freq.c index 6c86452e173..6adb354e359 100644 --- a/drivers/cpufreq/sc520_freq.c +++ b/drivers/cpufreq/sc520_freq.c @@ -56,17 +56,8 @@ static unsigned int sc520_freq_get_cpu_frequency(unsigned int cpu) static int sc520_freq_target(struct cpufreq_policy *policy, unsigned int state) { - struct cpufreq_freqs freqs; u8 clockspeed_reg; - freqs.old = sc520_freq_get_cpu_frequency(0); - freqs.new = sc520_freq_table[state].frequency; - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - - pr_debug("attempting to set frequency to %i kHz\n", - sc520_freq_table[state].frequency); - local_irq_disable(); clockspeed_reg = *cpuctl & ~0x03; @@ -74,8 +65,6 @@ static int sc520_freq_target(struct cpufreq_policy *policy, unsigned int state) local_irq_enable(); - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - return 0; } diff --git a/drivers/cpufreq/sparc-us2e-cpufreq.c b/drivers/cpufreq/sparc-us2e-cpufreq.c index 3bf5b8f0366..62aa23e219d 100644 --- a/drivers/cpufreq/sparc-us2e-cpufreq.c +++ b/drivers/cpufreq/sparc-us2e-cpufreq.c @@ -251,7 +251,6 @@ static int us2e_freq_target(struct cpufreq_policy *policy, unsigned int index) unsigned long new_bits, new_freq; unsigned long clock_tick, divisor, old_divisor, estar; cpumask_t cpus_allowed; - struct cpufreq_freqs freqs; cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current)); set_cpus_allowed_ptr(current, cpumask_of(cpu)); @@ -265,16 +264,10 @@ static int us2e_freq_target(struct cpufreq_policy *policy, unsigned int index) old_divisor = estar_to_divisor(estar); - freqs.old = clock_tick / old_divisor; - freqs.new = new_freq; - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - if (old_divisor != divisor) us2e_transition(estar, new_bits, clock_tick * 1000, old_divisor, divisor); - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - set_cpus_allowed_ptr(current, &cpus_allowed); return 0; diff --git a/drivers/cpufreq/sparc-us3-cpufreq.c b/drivers/cpufreq/sparc-us3-cpufreq.c index 2e54d55915d..724ffbd7105 100644 --- a/drivers/cpufreq/sparc-us3-cpufreq.c +++ b/drivers/cpufreq/sparc-us3-cpufreq.c @@ -98,7 +98,6 @@ static int us3_freq_target(struct cpufreq_policy *policy, unsigned int index) unsigned int cpu = policy->cpu; unsigned long new_bits, new_freq, reg; cpumask_t cpus_allowed; - struct cpufreq_freqs freqs; cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current)); set_cpus_allowed_ptr(current, cpumask_of(cpu)); @@ -124,16 +123,10 @@ static int us3_freq_target(struct cpufreq_policy *policy, unsigned int index) reg = read_safari_cfg(); - freqs.old = get_current_freq(cpu, reg); - freqs.new = new_freq; - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - reg &= ~SAFARI_CFG_DIV_MASK; reg |= new_bits; write_safari_cfg(reg); - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - set_cpus_allowed_ptr(current, &cpus_allowed); return 0; diff --git a/drivers/cpufreq/spear-cpufreq.c b/drivers/cpufreq/spear-cpufreq.c index 11a65be3fd7..d02ccd19c9c 100644 --- a/drivers/cpufreq/spear-cpufreq.c +++ b/drivers/cpufreq/spear-cpufreq.c @@ -107,12 +107,10 @@ static int spear1340_set_cpu_rate(struct clk *sys_pclk, unsigned long newfreq) static int spear_cpufreq_target(struct cpufreq_policy *policy, unsigned int index) { - struct cpufreq_freqs freqs; long newfreq; struct clk *srcclk; int ret, mult = 1; - freqs.old = spear_cpufreq_get(0); newfreq = spear_cpufreq.freq_tbl[index].frequency * 1000; if (of_machine_is_compatible("st,spear1340")) { @@ -145,23 +143,14 @@ static int spear_cpufreq_target(struct cpufreq_policy *policy, return newfreq; } - freqs.new = newfreq / 1000; - freqs.new /= mult; - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - if (mult == 2) ret = spear1340_set_cpu_rate(srcclk, newfreq); else ret = clk_set_rate(spear_cpufreq.clk, newfreq); - /* Get current rate after clk_set_rate, in case of failure */ - if (ret) { + if (ret) pr_err("CPU Freq: cpu clk_set_rate failed: %d\n", ret); - freqs.new = clk_get_rate(spear_cpufreq.clk) / 1000; - } - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); return ret; } diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c index c51ec8c0e3a..4e1daca5ce3 100644 --- a/drivers/cpufreq/speedstep-centrino.c +++ b/drivers/cpufreq/speedstep-centrino.c @@ -423,9 +423,8 @@ static int centrino_cpu_exit(struct cpufreq_policy *policy) static int centrino_target(struct cpufreq_policy *policy, unsigned int index) { unsigned int msr, oldmsr = 0, h = 0, cpu = policy->cpu; - struct cpufreq_freqs freqs; int retval = 0; - unsigned int j, first_cpu, tmp; + unsigned int j, first_cpu; struct cpufreq_frequency_table *op_points; cpumask_var_t covered_cpus; @@ -473,16 +472,6 @@ static int centrino_target(struct cpufreq_policy *policy, unsigned int index) goto out; } - freqs.old = extract_clock(oldmsr, cpu, 0); - freqs.new = extract_clock(msr, cpu, 0); - - pr_debug("target=%dkHz old=%d new=%d msr=%04x\n", - op_points->frequency, freqs.old, freqs.new, - msr); - - cpufreq_notify_transition(policy, &freqs, - CPUFREQ_PRECHANGE); - first_cpu = 0; /* all but 16 LSB are reserved, treat them with care */ oldmsr &= ~0xffff; @@ -497,8 +486,6 @@ static int centrino_target(struct cpufreq_policy *policy, unsigned int index) cpumask_set_cpu(j, covered_cpus); } - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - if (unlikely(retval)) { /* * We have failed halfway through the frequency change. @@ -509,12 +496,6 @@ static int centrino_target(struct cpufreq_policy *policy, unsigned int index) for_each_cpu(j, covered_cpus) wrmsr_on_cpu(j, MSR_IA32_PERF_CTL, oldmsr, h); - - tmp = freqs.new; - freqs.new = freqs.old; - freqs.old = tmp; - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); } retval = 0; diff --git a/drivers/cpufreq/speedstep-ich.c b/drivers/cpufreq/speedstep-ich.c index 707721ebb85..7639b2be2a9 100644 --- a/drivers/cpufreq/speedstep-ich.c +++ b/drivers/cpufreq/speedstep-ich.c @@ -258,21 +258,12 @@ static unsigned int speedstep_get(unsigned int cpu) static int speedstep_target(struct cpufreq_policy *policy, unsigned int index) { unsigned int policy_cpu; - struct cpufreq_freqs freqs; policy_cpu = cpumask_any_and(policy->cpus, cpu_online_mask); - freqs.old = speedstep_get(policy_cpu); - freqs.new = speedstep_freqs[index].frequency; - - pr_debug("transiting from %u to %u kHz\n", freqs.old, freqs.new); - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); smp_call_function_single(policy_cpu, _speedstep_set_state, &index, true); - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); - return 0; } diff --git a/drivers/cpufreq/speedstep-smi.c b/drivers/cpufreq/speedstep-smi.c index 19446e479cc..0f5326d6f79 100644 --- a/drivers/cpufreq/speedstep-smi.c +++ b/drivers/cpufreq/speedstep-smi.c @@ -241,14 +241,7 @@ static void speedstep_set_state(unsigned int state) */ static int speedstep_target(struct cpufreq_policy *policy, unsigned int index) { - struct cpufreq_freqs freqs; - - freqs.old = speedstep_freqs[speedstep_get_state()].frequency; - freqs.new = speedstep_freqs[index].frequency; - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); speedstep_set_state(index); - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); return 0; } diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c index bd7d89c013a..f42df7ec03c 100644 --- a/drivers/cpufreq/tegra-cpufreq.c +++ b/drivers/cpufreq/tegra-cpufreq.c @@ -102,12 +102,8 @@ static int tegra_update_cpu_speed(struct cpufreq_policy *policy, unsigned long rate) { int ret = 0; - struct cpufreq_freqs freqs; - freqs.old = tegra_getspeed(0); - freqs.new = rate; - - if (freqs.old == freqs.new) + if (tegra_getspeed(0) == rate) return ret; /* @@ -121,21 +117,10 @@ static int tegra_update_cpu_speed(struct cpufreq_policy *policy, else clk_set_rate(emc_clk, 100000000); /* emc 50Mhz */ - cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); - -#ifdef CONFIG_CPU_FREQ_DEBUG - printk(KERN_DEBUG "cpufreq-tegra: transition: %u --> %u\n", - freqs.old, freqs.new); -#endif - - ret = tegra_cpu_clk_set_rate(freqs.new * 1000); - if (ret) { - pr_err("cpu-tegra: Failed to set cpu frequency to %d kHz\n", - freqs.new); - freqs.new = freqs.old; - } - - cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); + ret = tegra_cpu_clk_set_rate(rate * 1000); + if (ret) + pr_err("cpu-tegra: Failed to set cpu frequency to %lu kHz\n", + rate); return ret; } -- cgit v1.2.3-70-g09d2 From 880eef041655b35f9aa488726ea3c4303a4f2204 Mon Sep 17 00:00:00 2001 From: Stratos Karafotis Date: Thu, 31 Oct 2013 20:27:36 +0200 Subject: cpufreq: ondemand: Remove redundant return statement After commit dfa5bb622555 (cpufreq: ondemand: Change the calculation of target frequency), this return statement is no longer needed. Reported-by: Henrik Nilsson Signed-off-by: Stratos Karafotis Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq_ondemand.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c index 32f26f6e17c..18d40918909 100644 --- a/drivers/cpufreq/cpufreq_ondemand.c +++ b/drivers/cpufreq/cpufreq_ondemand.c @@ -168,7 +168,6 @@ static void od_check_cpu(int cpu, unsigned int load) dbs_info->rate_mult = od_tuners->sampling_down_factor; dbs_freq_increase(policy, policy->max); - return; } else { /* Calculate the next frequency proportional to load */ unsigned int freq_next; -- cgit v1.2.3-70-g09d2 From fbbcdc0744dace5fcc8147d11c5fb0791126848a Mon Sep 17 00:00:00 2001 From: Adrian Huang Date: Thu, 31 Oct 2013 23:24:05 +0800 Subject: intel_pstate: skip the driver if ACPI has power mgmt option Do not load the Intel pstate driver if the platform firmware (ACPI BIOS) supports the power management alternatives. The ACPI BIOS indicates that the OS control mode can be used if the _PSS (Performance Supported States) is defined in ACPI table. For the OS control mode, the Intel pstate driver will be loaded. HP BIOS has several power management modes (firmware, OS-control and so on). For the OS control mode in HP BIOS, the Intel p-state driver will be loaded. When the customer chooses the firmware power management in HP BIOS, the Intel p-state driver will be ignored. I put hw_vendor_info vendor_info in case other vendors (Dell, Lenovo...) have their firmware power management. Vendors should make sure their firmware power management works properly, and they can go for adding their vendor info to the variable. I have verified the patch on HP ProLiant servers. The patch worked correctly. Signed-off-by: Adrian Huang [rjw: Fixed up !CONFIG_ACPI build] [Linda Knippers: As Adrian has recently left HP, I retested the updated patch on an HP ProLiant server and verified that it is behaving correctly. When the BIOS is configured for OS control for power management, the intel_pstate driver loads as expected. When the BIOS is configured to provide the power management, the intel_pstate driver does not load and we get the pcc_cpufreq driver instead.] Signed-off-by: Linda Knippers Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/intel_pstate.c | 74 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 81e0062a6d2..3b5c5359a44 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include @@ -779,6 +780,72 @@ static void copy_cpu_funcs(struct pstate_funcs *funcs) pstate_funcs.set = funcs->set; } +#if IS_ENABLED(CONFIG_ACPI) +#include + +static bool intel_pstate_no_acpi_pss(void) +{ + int i; + + for_each_possible_cpu(i) { + acpi_status status; + union acpi_object *pss; + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + struct acpi_processor *pr = per_cpu(processors, i); + + if (!pr) + continue; + + status = acpi_evaluate_object(pr->handle, "_PSS", NULL, &buffer); + if (ACPI_FAILURE(status)) + continue; + + pss = buffer.pointer; + if (pss && pss->type == ACPI_TYPE_PACKAGE) { + kfree(pss); + return false; + } + + kfree(pss); + } + + return true; +} + +struct hw_vendor_info { + u16 valid; + char oem_id[ACPI_OEM_ID_SIZE]; + char oem_table_id[ACPI_OEM_TABLE_ID_SIZE]; +}; + +/* Hardware vendor-specific info that has its own power management modes */ +static struct hw_vendor_info vendor_info[] = { + {1, "HP ", "ProLiant"}, + {0, "", ""}, +}; + +static bool intel_pstate_platform_pwr_mgmt_exists(void) +{ + struct acpi_table_header hdr; + struct hw_vendor_info *v_info; + + if (acpi_disabled + || ACPI_FAILURE(acpi_get_table_header(ACPI_SIG_FADT, 0, &hdr))) + return false; + + for (v_info = vendor_info; v_info->valid; v_info++) { + if (!strncmp(hdr.oem_id, v_info->oem_id, ACPI_OEM_ID_SIZE) + && !strncmp(hdr.oem_table_id, v_info->oem_table_id, ACPI_OEM_TABLE_ID_SIZE) + && intel_pstate_no_acpi_pss()) + return true; + } + + return false; +} +#else /* CONFIG_ACPI not enabled */ +static inline bool intel_pstate_platform_pwr_mgmt_exists(void) { return false; } +#endif /* CONFIG_ACPI */ + static int __init intel_pstate_init(void) { int cpu, rc = 0; @@ -792,6 +859,13 @@ static int __init intel_pstate_init(void) if (!id) return -ENODEV; + /* + * The Intel pstate driver will be ignored if the platform + * firmware has its own power management modes. + */ + if (intel_pstate_platform_pwr_mgmt_exists()) + return -ENODEV; + cpu_info = (struct cpu_defaults *)id->driver_data; copy_pid_params(&cpu_info->pid_policy); -- cgit v1.2.3-70-g09d2 From 3baa976ae644f76f5cdb5be0fb26754c3bfb32cb Mon Sep 17 00:00:00 2001 From: Xiaoguang Chen Date: Thu, 7 Nov 2013 10:28:50 +0800 Subject: cpufreq: conservative: fix requested_freq reduction issue When decreasing frequency, requested_freq may be less than freq_target, So requested_freq minus freq_target may be negative, But reqested_freq's unit is unsigned int, then the negative result will be one larger interger which may be even higher than requested_freq. This patch is to fix such issue. when result becomes negative, set requested_freq as the min value of policy. Signed-off-by: Xiaoguang Chen Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq_conservative.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c index f62d822048e..218460fcd2e 100644 --- a/drivers/cpufreq/cpufreq_conservative.c +++ b/drivers/cpufreq/cpufreq_conservative.c @@ -80,13 +80,18 @@ static void cs_check_cpu(int cpu, unsigned int load) /* Check for frequency decrease */ if (load < cs_tuners->down_threshold) { + unsigned int freq_target; /* * if we cannot reduce the frequency anymore, break out early */ if (policy->cur == policy->min) return; - dbs_info->requested_freq -= get_freq_target(cs_tuners, policy); + freq_target = get_freq_target(cs_tuners, policy); + if (dbs_info->requested_freq > freq_target) + dbs_info->requested_freq -= freq_target; + else + dbs_info->requested_freq = policy->min; __cpufreq_driver_target(policy, dbs_info->requested_freq, CPUFREQ_RELATION_L); -- cgit v1.2.3-70-g09d2