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authorViresh Kumar <viresh.kumar@linaro.org>2013-02-01 06:40:02 +0000
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-02-02 01:29:32 +0100
commit62b36cc1c83aca1cd252772e82cbc5d9ef8ff25b (patch)
tree1b016a0b4efea3be2f484650bf81386f0f825449
parent4c738d00cf5866a0b114ceb41d736a4a803f0c46 (diff)
cpufreq: Remove unnecessary use of policy->shared_type
policy->shared_type field was added only for SoCs with ACPI support: commit 3b2d99429e3386b6e2ac949fc72486509c8bbe36 Author: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Date: Wed Dec 14 15:05:00 2005 -0500 P-state software coordination for ACPI core http://bugzilla.kernel.org/show_bug.cgi?id=5737 Many non-ACPI systems are filling this field by mistake, which makes its usage confusing. Lets clean it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-rw-r--r--arch/arm/mach-tegra/cpu-tegra.c1
-rw-r--r--drivers/cpufreq/cpufreq-cpu0.c1
-rw-r--r--drivers/cpufreq/db8500-cpufreq.c2
-rw-r--r--drivers/cpufreq/omap-cpufreq.c4
-rw-r--r--include/linux/cpufreq.h3
5 files changed, 3 insertions, 8 deletions
diff --git a/arch/arm/mach-tegra/cpu-tegra.c b/arch/arm/mach-tegra/cpu-tegra.c
index e7ddcb2b526..a36a03d3c9a 100644
--- a/arch/arm/mach-tegra/cpu-tegra.c
+++ b/arch/arm/mach-tegra/cpu-tegra.c
@@ -243,7 +243,6 @@ static int tegra_cpu_init(struct cpufreq_policy *policy)
/* FIXME: what's the actual transition time? */
policy->cpuinfo.transition_latency = 300 * 1000;
- policy->shared_type = CPUFREQ_SHARED_TYPE_ALL;
cpumask_copy(policy->cpus, cpu_possible_mask);
if (policy->cpu == 0)
diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
index a108f66271e..4e5b7fb8927 100644
--- a/drivers/cpufreq/cpufreq-cpu0.c
+++ b/drivers/cpufreq/cpufreq-cpu0.c
@@ -146,7 +146,6 @@ static int cpu0_cpufreq_init(struct cpufreq_policy *policy)
* share the clock and voltage and clock. Use cpufreq affected_cpus
* interface to have all CPUs scaled together.
*/
- policy->shared_type = CPUFREQ_SHARED_TYPE_ANY;
cpumask_setall(policy->cpus);
cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
diff --git a/drivers/cpufreq/db8500-cpufreq.c b/drivers/cpufreq/db8500-cpufreq.c
index e12dff601b8..79a84860ea5 100644
--- a/drivers/cpufreq/db8500-cpufreq.c
+++ b/drivers/cpufreq/db8500-cpufreq.c
@@ -130,8 +130,6 @@ static int __cpuinit db8500_cpufreq_init(struct cpufreq_policy *policy)
/* policy sharing between dual CPUs */
cpumask_setall(policy->cpus);
- policy->shared_type = CPUFREQ_SHARED_TYPE_ALL;
-
return 0;
}
diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index 97102b05843..9128c07bafb 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -214,10 +214,8 @@ static int __cpuinit omap_cpu_init(struct cpufreq_policy *policy)
* interface to handle this scenario. Additional is_smp() check
* is to keep SMP_ON_UP build working.
*/
- if (is_smp()) {
- policy->shared_type = CPUFREQ_SHARED_TYPE_ANY;
+ if (is_smp())
cpumask_setall(policy->cpus);
- }
/* FIXME: what's the actual transition time? */
policy->cpuinfo.transition_latency = 300 * 1000;
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 6bf3f2d12c9..a22944ca052 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -93,7 +93,7 @@ struct cpufreq_policy {
cpumask_var_t cpus; /* Online CPUs only */
cpumask_var_t related_cpus; /* Online + Offline CPUs */
- unsigned int shared_type; /* ANY or ALL affected CPUs
+ unsigned int shared_type; /* ACPI: ANY or ALL affected CPUs
should set cpufreq */
unsigned int cpu; /* cpu nr of CPU managing this policy */
unsigned int last_cpu; /* cpu nr of previous CPU that managed
@@ -122,6 +122,7 @@ struct cpufreq_policy {
#define CPUFREQ_START (3)
#define CPUFREQ_UPDATE_POLICY_CPU (4)
+/* Only for ACPI */
#define CPUFREQ_SHARED_TYPE_NONE (0) /* None */
#define CPUFREQ_SHARED_TYPE_HW (1) /* HW does needed coordination */
#define CPUFREQ_SHARED_TYPE_ALL (2) /* All dependent CPUs should set freq */