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cpufreq: introduce cpufreq_generic_get() routine

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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>
This commit is contained in:
Viresh Kumar
2014-01-09 20:38:43 +05:30
committed by Rafael J. Wysocki
parent 0ad04fb30d
commit 652ed95d5f
18 changed files with 112 additions and 229 deletions
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8
drivers/cpufreq/spear-cpufreq.c
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@@ -30,11 +30,6 @@ static struct {
u32 cnt;
} spear_cpufreq;
static unsigned int spear_cpufreq_get(unsigned int cpu)
{
return clk_get_rate(spear_cpufreq.clk) / 1000;
}
static struct clk *spear1340_cpu_get_possible_parent(unsigned long newfreq)
{
struct clk *sys_pclk;
@@ -156,6 +151,7 @@ static int spear_cpufreq_target(struct cpufreq_policy *policy,
static int spear_cpufreq_init(struct cpufreq_policy *policy)
{
policy->clk = spear_cpufreq.clk;
return cpufreq_generic_init(policy, spear_cpufreq.freq_tbl,
spear_cpufreq.transition_latency);
}
@@ -165,7 +161,7 @@ static struct cpufreq_driver spear_cpufreq_driver = {
.flags = CPUFREQ_STICKY | CPUFREQ_NEED_INITIAL_FREQ_CHECK,
.verify = cpufreq_generic_frequency_table_verify,
.target_index = spear_cpufreq_target,
.get = spear_cpufreq_get,
.get = cpufreq_generic_get,
.init = spear_cpufreq_init,
.exit = cpufreq_generic_exit,
.attr = cpufreq_generic_attr,