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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-01-17 02:01:32 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-01-17 02:01:32 +0100
commit7744064731a9543105e207504e0262f883bc14c0 (patch)
treec3ca5afdd019f56086104c524dd62ea6e779d2d2 /drivers/cpufreq/exynos-cpufreq.c
parentMerge branches 'acpi-tools' and 'pm-tools' (diff)
parentthermal: exynos: boost: Automatic enable/disable of BOOST feature (at Exynos4... (diff)
downloadlinux-7744064731a9543105e207504e0262f883bc14c0.tar.xz
linux-7744064731a9543105e207504e0262f883bc14c0.zip
Merge branch 'pm-cpufreq'
* pm-cpufreq: (40 commits) thermal: exynos: boost: Automatic enable/disable of BOOST feature (at Exynos4412) cpufreq: exynos4x12: Change L0 driver data to CPUFREQ_BOOST_FREQ Documentation: cpufreq / boost: Update BOOST documentation cpufreq: exynos: Extend Exynos cpufreq driver to support boost cpufreq / boost: Kconfig: Support for software-managed BOOST acpi-cpufreq: Adjust the code to use the common boost attribute cpufreq: Add boost frequency support in core intel_pstate: Add trace point to report internal state. cpufreq: introduce cpufreq_generic_get() routine ARM: SA1100: Create dummy clk_get_rate() to avoid build failures cpufreq: stats: create sysfs entries when cpufreq_stats is a module cpufreq: stats: free table and remove sysfs entry in a single routine cpufreq: stats: remove hotplug notifiers cpufreq: stats: handle cpufreq_unregister_driver() and suspend/resume properly cpufreq: speedstep: remove unused speedstep_get_state powernow-k6: reorder frequencies powernow-k6: correctly initialize default parameters powernow-k6: disable cache when changing frequency Documentation: add ABI entry for intel_pstate cpufreq: exynos: Convert exynos-cpufreq to platform driver ...
Diffstat (limited to 'drivers/cpufreq/exynos-cpufreq.c')
-rw-r--r--drivers/cpufreq/exynos-cpufreq.c28
1 files changed, 18 insertions, 10 deletions
diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index f3c22874da75..fcd2914d081a 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -17,6 +17,7 @@
#include <linux/regulator/consumer.h>
#include <linux/cpufreq.h>
#include <linux/suspend.h>
+#include <linux/platform_device.h>
#include <plat/cpu.h>
@@ -30,11 +31,6 @@ static unsigned int locking_frequency;
static bool frequency_locked;
static DEFINE_MUTEX(cpufreq_lock);
-static unsigned int exynos_getspeed(unsigned int cpu)
-{
- return clk_get_rate(exynos_info->cpu_clk) / 1000;
-}
-
static int exynos_cpufreq_get_index(unsigned int freq)
{
struct cpufreq_frequency_table *freq_table = exynos_info->freq_table;
@@ -214,25 +210,29 @@ static struct notifier_block exynos_cpufreq_nb = {
static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
{
+ policy->clk = exynos_info->cpu_clk;
return cpufreq_generic_init(policy, exynos_info->freq_table, 100000);
}
static struct cpufreq_driver exynos_driver = {
- .flags = CPUFREQ_STICKY,
+ .flags = CPUFREQ_STICKY | CPUFREQ_NEED_INITIAL_FREQ_CHECK,
.verify = cpufreq_generic_frequency_table_verify,
.target_index = exynos_target,
- .get = exynos_getspeed,
+ .get = cpufreq_generic_get,
.init = exynos_cpufreq_cpu_init,
.exit = cpufreq_generic_exit,
.name = "exynos_cpufreq",
.attr = cpufreq_generic_attr,
+#ifdef CONFIG_ARM_EXYNOS_CPU_FREQ_BOOST_SW
+ .boost_supported = true,
+#endif
#ifdef CONFIG_PM
.suspend = exynos_cpufreq_suspend,
.resume = exynos_cpufreq_resume,
#endif
};
-static int __init exynos_cpufreq_init(void)
+static int exynos_cpufreq_probe(struct platform_device *pdev)
{
int ret = -EINVAL;
@@ -263,7 +263,7 @@ static int __init exynos_cpufreq_init(void)
goto err_vdd_arm;
}
- locking_frequency = exynos_getspeed(0);
+ locking_frequency = clk_get_rate(exynos_info->cpu_clk) / 1000;
register_pm_notifier(&exynos_cpufreq_nb);
@@ -281,4 +281,12 @@ err_vdd_arm:
kfree(exynos_info);
return -EINVAL;
}
-late_initcall(exynos_cpufreq_init);
+
+static struct platform_driver exynos_cpufreq_platdrv = {
+ .driver = {
+ .name = "exynos-cpufreq",
+ .owner = THIS_MODULE,
+ },
+ .probe = exynos_cpufreq_probe,
+};
+module_platform_driver(exynos_cpufreq_platdrv);