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authorViresh Kumar <viresh.kumar@linaro.org>2014-01-09 20:38:43 +0530
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-01-17 02:00:44 +0100
commit652ed95d5fa6074b3c4ea245deb0691f1acb6656 (patch)
tree7b01079f3a582b0d6b08f541a8a344440bec8eae /drivers/cpufreq/exynos-cpufreq.c
parent0ad04fb30db0341d0b1134e2f592d9146c9abb64 (diff)
cpufreq: introduce cpufreq_generic_get() routine
CPUFreq drivers that use clock frameworks interface,i.e. clk_get_rate(), to get CPUs clk rate, have similar sort of code used in most of them. This patch adds a generic ->get() which will do the same thing for them. All those drivers are required to now is to set .get to cpufreq_generic_get() and set their clk pointer in policy->clk during ->init(). Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Acked-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/exynos-cpufreq.c')
-rw-r--r--drivers/cpufreq/exynos-cpufreq.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index f7c322c7d7ed..4ee3804637be 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -31,11 +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;
@@ -215,6 +210,7 @@ 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);
}
@@ -222,7 +218,7 @@ static struct cpufreq_driver exynos_driver = {
.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",
@@ -264,7 +260,7 @@ static int exynos_cpufreq_probe(struct platform_device *pdev)
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);