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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2014-01-09 15:08:43 (GMT) |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-01-17 01:00:44 (GMT) |
| commit | 652ed95d5fa6074b3c4ea245deb0691f1acb6656 (patch) | |
| tree | 7b01079f3a582b0d6b08f541a8a344440bec8eae /drivers/cpufreq/loongson2_cpufreq.c | |
| parent | 0ad04fb30db0341d0b1134e2f592d9146c9abb64 (diff) | |
| download | linux-652ed95d5fa6074b3c4ea245deb0691f1acb6656.tar.xz | |
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/loongson2_cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/loongson2_cpufreq.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c index a436092..b6581ab 100644 --- a/drivers/cpufreq/loongson2_cpufreq.c +++ b/drivers/cpufreq/loongson2_cpufreq.c @@ -24,8 +24,6 @@ static uint nowait; -static struct clk *cpuclk; - static void (*saved_cpu_wait) (void); static int loongson2_cpu_freq_notifier(struct notifier_block *nb, @@ -44,11 +42,6 @@ static int loongson2_cpu_freq_notifier(struct notifier_block *nb, return 0; } -static unsigned int loongson2_cpufreq_get(unsigned int cpu) -{ - return clk_get_rate(cpuclk); -} - /* * Here we notify other drivers of the proposed change and the final change. */ @@ -69,13 +62,14 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy, set_cpus_allowed_ptr(current, &cpus_allowed); /* setting the cpu frequency */ - clk_set_rate(cpuclk, freq); + clk_set_rate(policy->clk, freq); return 0; } static int loongson2_cpufreq_cpu_init(struct cpufreq_policy *policy) { + static struct clk *cpuclk; int i; unsigned long rate; int ret; @@ -104,13 +98,14 @@ static int loongson2_cpufreq_cpu_init(struct cpufreq_policy *policy) return ret; } + policy->clk = cpuclk; return cpufreq_generic_init(policy, &loongson2_clockmod_table[0], 0); } static int loongson2_cpufreq_exit(struct cpufreq_policy *policy) { cpufreq_frequency_table_put_attr(policy->cpu); - clk_put(cpuclk); + clk_put(policy->clk); return 0; } @@ -119,7 +114,7 @@ static struct cpufreq_driver loongson2_cpufreq_driver = { .init = loongson2_cpufreq_cpu_init, .verify = cpufreq_generic_frequency_table_verify, .target_index = loongson2_cpufreq_target, - .get = loongson2_cpufreq_get, + .get = cpufreq_generic_get, .exit = loongson2_cpufreq_exit, .attr = cpufreq_generic_attr, }; |