diff options
Diffstat (limited to 'drivers/cpufreq/db8500-cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/db8500-cpufreq.c | 40 |
1 files changed, 22 insertions, 18 deletions
diff --git a/drivers/cpufreq/db8500-cpufreq.c b/drivers/cpufreq/db8500-cpufreq.c index d90456a809f..f5002015d82 100644 --- a/drivers/cpufreq/db8500-cpufreq.c +++ b/drivers/cpufreq/db8500-cpufreq.c @@ -12,30 +12,35 @@ #include <linux/cpufreq.h> #include <linux/delay.h> #include <linux/slab.h> -#include <linux/mfd/db8500-prcmu.h> +#include <linux/mfd/dbx500-prcmu.h> #include <mach/id.h> static struct cpufreq_frequency_table freq_table[] = { [0] = { .index = 0, - .frequency = 300000, + .frequency = 200000, }, [1] = { .index = 1, - .frequency = 600000, + .frequency = 300000, }, [2] = { - /* Used for MAX_OPP, if available */ .index = 2, - .frequency = CPUFREQ_TABLE_END, + .frequency = 600000, }, [3] = { + /* Used for MAX_OPP, if available */ .index = 3, .frequency = CPUFREQ_TABLE_END, }, + [4] = { + .index = 4, + .frequency = CPUFREQ_TABLE_END, + }, }; static enum arm_opp idx2opp[] = { + ARM_EXTCLK, ARM_50_OPP, ARM_100_OPP, ARM_MAX_OPP @@ -72,13 +77,13 @@ static int db8500_cpufreq_target(struct cpufreq_policy *policy, freqs.old = policy->cur; freqs.new = freq_table[idx].frequency; - freqs.cpu = policy->cpu; if (freqs.old == freqs.new) return 0; /* pre-change notification */ - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + for_each_cpu(freqs.cpu, policy->cpus) + cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); /* request the PRCM unit for opp change */ if (prcmu_set_arm_opp(idx2opp[idx])) { @@ -87,7 +92,8 @@ static int db8500_cpufreq_target(struct cpufreq_policy *policy, } /* post change notification */ - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + for_each_cpu(freqs.cpu, policy->cpus) + cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); return 0; } @@ -103,17 +109,19 @@ static unsigned int db8500_cpufreq_getspeed(unsigned int cpu) static int __cpuinit db8500_cpufreq_init(struct cpufreq_policy *policy) { - int res; - int i; + int i, res; BUILD_BUG_ON(ARRAY_SIZE(idx2opp) + 1 != ARRAY_SIZE(freq_table)); - if (cpu_is_u8500v2() && !prcmu_is_u8400()) { - freq_table[0].frequency = 400000; - freq_table[1].frequency = 800000; + if (!prcmu_is_u8400()) { + freq_table[1].frequency = 400000; + freq_table[2].frequency = 800000; if (prcmu_has_arm_maxopp()) - freq_table[2].frequency = 1000000; + freq_table[3].frequency = 1000000; } + pr_info("db8500-cpufreq : Available frequencies:\n"); + for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) + pr_info(" %d Mhz\n", freq_table[i].frequency/1000); /* get policy fields based on the table */ res = cpufreq_frequency_table_cpuinfo(policy, freq_table); @@ -127,10 +135,6 @@ static int __cpuinit db8500_cpufreq_init(struct cpufreq_policy *policy) policy->min = policy->cpuinfo.min_freq; policy->max = policy->cpuinfo.max_freq; policy->cur = db8500_cpufreq_getspeed(policy->cpu); - - for (i = 0; freq_table[i].frequency != policy->cur; i++) - ; - policy->governor = CPUFREQ_DEFAULT_GOVERNOR; /* |