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authorOlof Johansson <olof@lixom.net>2014-03-09 12:03:18 -0700
committerOlof Johansson <olof@lixom.net>2014-03-09 12:03:18 -0700
commit1760e4f855a2ead08a40deac9abd4fb8cdf3af32 (patch)
tree8ee1c79f4c46fd225d90e832def3d7f7e3742086 /drivers/cpufreq
parent1e871089f66416ce540d8e362225a0878a5d2c06 (diff)
parentc8ae7e9bfc8caf679e891c4f0a04f2435b45e2da (diff)
Merge tag 'imx-soc-3.15' of git://git.linaro.org/people/shawnguo/linux-2.6 into next/soc
i.MX SoC changes for 3.15 from Shawn Guo: - Support suspend from ocram (DDR IO floating) for imx6 platforms - Add cpuidle support for imx6sl - Sparse warning fixes for imx6sl and vf610 clock code - Remove PWM platform code - Support ptp and rmii clock from pad - Support WEIM CS GPR configuration - Random cleanups and defconfig updates * tag 'imx-soc-3.15' of git://git.linaro.org/people/shawnguo/linux-2.6: (373 commits) ARM: imx6: drop .text.head section annotation from headsmp.S ARM: imx6: build suspend-imx6.o with CONFIG_SOC_IMX6 ARM: imx6: rename pm-imx6q.c to pm-imx6.c ARM: imx6: introduce CONFIG_SOC_IMX6 for i.MX6 common stuff ARM: imx6: do not call imx6q_suspend_init() with !CONFIG_SUSPEND ARM: imx6: call suspend_set_ops() from suspend routine ARM: imx6: build headsmp.o only on CONFIG_SMP ARM: imx6: move v7_cpu_resume() into suspend-imx6.S ARM i.MX6q: Mark VPU and IPU AXI transfers as cacheable, increase IPU priority ARM: imx6q: Add GPR6 and GPR7 register definitions for iomuxc gpr bus: imx-weim: support CS GPR configuration ARM: mach-imx: Kconfig: Remove IMX_HAVE_PLATFORM_IMX2_WDT from SOC_IMX53 ARM: imx_v6_v7_defconfig: Select CONFIG_DEBUG_FS ARM: mach-imx: Select CONFIG_SRAM at ARCH_MXC level ARM: imx: add speed grading check for i.mx6 soc ARM: imx: avoid calling clk APIs in idle thread which may cause schedule ARM: imx6q: support ptp and rmii clock from pad ARM: imx6q: remove unneeded clk lookups ARM: imx_v6_v7_defconfig: Select CONFIG_MMC_UNSAFE_RESUME ARM: imx_v4_v5_defconfig: Select CONFIG_MMC_UNSAFE_RESUME ...
Diffstat (limited to 'drivers/cpufreq')
-rw-r--r--drivers/cpufreq/cpufreq.c3
-rw-r--r--drivers/cpufreq/intel_pstate.c17
-rw-r--r--drivers/cpufreq/powernow-k8.c10
3 files changed, 21 insertions, 9 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 08ca8c9f41c..cb003a6b72c 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1323,8 +1323,7 @@ static int __cpufreq_remove_dev_prepare(struct device *dev,
up_read(&policy->rwsem);
if (cpu != policy->cpu) {
- if (!frozen)
- sysfs_remove_link(&dev->kobj, "cpufreq");
+ sysfs_remove_link(&dev->kobj, "cpufreq");
} else if (cpus > 1) {
new_cpu = cpufreq_nominate_new_policy_cpu(policy, cpu);
if (new_cpu >= 0) {
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index c788abf1c45..e9081610592 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -34,8 +34,10 @@
#define SAMPLE_COUNT 3
-#define BYT_RATIOS 0x66a
-#define BYT_VIDS 0x66b
+#define BYT_RATIOS 0x66a
+#define BYT_VIDS 0x66b
+#define BYT_TURBO_RATIOS 0x66c
+
#define FRAC_BITS 8
#define int_tofp(X) ((int64_t)(X) << FRAC_BITS)
@@ -357,7 +359,7 @@ static int byt_get_min_pstate(void)
{
u64 value;
rdmsrl(BYT_RATIOS, value);
- return value & 0xFF;
+ return (value >> 8) & 0xFF;
}
static int byt_get_max_pstate(void)
@@ -367,6 +369,13 @@ static int byt_get_max_pstate(void)
return (value >> 16) & 0xFF;
}
+static int byt_get_turbo_pstate(void)
+{
+ u64 value;
+ rdmsrl(BYT_TURBO_RATIOS, value);
+ return value & 0x3F;
+}
+
static void byt_set_pstate(struct cpudata *cpudata, int pstate)
{
u64 val;
@@ -469,7 +478,7 @@ static struct cpu_defaults byt_params = {
.funcs = {
.get_max = byt_get_max_pstate,
.get_min = byt_get_min_pstate,
- .get_turbo = byt_get_max_pstate,
+ .get_turbo = byt_get_turbo_pstate,
.set = byt_set_pstate,
.get_vid = byt_get_vid,
},
diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c
index e10b646634d..6684e034279 100644
--- a/drivers/cpufreq/powernow-k8.c
+++ b/drivers/cpufreq/powernow-k8.c
@@ -1076,7 +1076,7 @@ static int powernowk8_cpu_init(struct cpufreq_policy *pol)
{
struct powernow_k8_data *data;
struct init_on_cpu init_on_cpu;
- int rc;
+ int rc, cpu;
smp_call_function_single(pol->cpu, check_supported_cpu, &rc, 1);
if (rc)
@@ -1140,7 +1140,9 @@ static int powernowk8_cpu_init(struct cpufreq_policy *pol)
pr_debug("cpu_init done, current fid 0x%x, vid 0x%x\n",
data->currfid, data->currvid);
- per_cpu(powernow_data, pol->cpu) = data;
+ /* Point all the CPUs in this policy to the same data */
+ for_each_cpu(cpu, pol->cpus)
+ per_cpu(powernow_data, cpu) = data;
return 0;
@@ -1155,6 +1157,7 @@ err_out:
static int powernowk8_cpu_exit(struct cpufreq_policy *pol)
{
struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu);
+ int cpu;
if (!data)
return -EINVAL;
@@ -1165,7 +1168,8 @@ static int powernowk8_cpu_exit(struct cpufreq_policy *pol)
kfree(data->powernow_table);
kfree(data);
- per_cpu(powernow_data, pol->cpu) = NULL;
+ for_each_cpu(cpu, pol->cpus)
+ per_cpu(powernow_data, cpu) = NULL;
return 0;
}