diff options
| author | Viresh Kumar <viresh.kumar@linaro.org> | 2014-01-09 16:08:43 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-01-17 02:00:44 +0100 |
| commit | 652ed95d5fa6074b3c4ea245deb0691f1acb6656 (patch) | |
| tree | 7b01079f3a582b0d6b08f541a8a344440bec8eae /drivers/cpufreq/davinci-cpufreq.c | |
| parent | ARM: SA1100: Create dummy clk_get_rate() to avoid build failures (diff) | |
| download | linux-652ed95d5fa6074b3c4ea245deb0691f1acb6656.tar.xz linux-652ed95d5fa6074b3c4ea245deb0691f1acb6656.zip | |
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/davinci-cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/davinci-cpufreq.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/drivers/cpufreq/davinci-cpufreq.c b/drivers/cpufreq/davinci-cpufreq.c index 04f3390a7a2c..2cf33848d86e 100644 --- a/drivers/cpufreq/davinci-cpufreq.c +++ b/drivers/cpufreq/davinci-cpufreq.c @@ -58,14 +58,6 @@ static int davinci_verify_speed(struct cpufreq_policy *policy) return 0; } -static unsigned int davinci_getspeed(unsigned int cpu) -{ - if (cpu) - return 0; - - return clk_get_rate(cpufreq.armclk) / 1000; -} - static int davinci_target(struct cpufreq_policy *policy, unsigned int idx) { struct davinci_cpufreq_config *pdata = cpufreq.dev->platform_data; @@ -73,7 +65,7 @@ static int davinci_target(struct cpufreq_policy *policy, unsigned int idx) unsigned int old_freq, new_freq; int ret = 0; - old_freq = davinci_getspeed(0); + old_freq = policy->cur; new_freq = pdata->freq_table[idx].frequency; /* if moving to higher frequency, up the voltage beforehand */ @@ -116,6 +108,8 @@ static int davinci_cpu_init(struct cpufreq_policy *policy) return result; } + policy->clk = cpufreq.armclk; + /* * Time measurement across the target() function yields ~1500-1800us * time taken with no drivers on notification list. @@ -129,7 +123,7 @@ static struct cpufreq_driver davinci_driver = { .flags = CPUFREQ_STICKY | CPUFREQ_NEED_INITIAL_FREQ_CHECK, .verify = davinci_verify_speed, .target_index = davinci_target, - .get = davinci_getspeed, + .get = cpufreq_generic_get, .init = davinci_cpu_init, .exit = cpufreq_generic_exit, .name = "davinci", |