diff options
| author | Viresh Kumar <viresh.kumar@linaro.org> | 2014-01-09 20:38:43 +0530 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-01-17 02:00:44 +0100 |
| commit | 652ed95d5fa6074b3c4ea245deb0691f1acb6656 (patch) | |
| tree | 7b01079f3a582b0d6b08f541a8a344440bec8eae /drivers/cpufreq/dbx500-cpufreq.c | |
| parent | 0ad04fb30db0341d0b1134e2f592d9146c9abb64 (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/dbx500-cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/dbx500-cpufreq.c | 19 |
1 files changed, 2 insertions, 17 deletions
diff --git a/drivers/cpufreq/dbx500-cpufreq.c b/drivers/cpufreq/dbx500-cpufreq.c index 21d9898e000..412a78bb0c9 100644 --- a/drivers/cpufreq/dbx500-cpufreq.c +++ b/drivers/cpufreq/dbx500-cpufreq.c @@ -26,24 +26,9 @@ static int dbx500_cpufreq_target(struct cpufreq_policy *policy, return clk_set_rate(armss_clk, freq_table[index].frequency * 1000); } -static unsigned int dbx500_cpufreq_getspeed(unsigned int cpu) -{ - int i = 0; - unsigned long freq = clk_get_rate(armss_clk) / 1000; - - /* The value is rounded to closest frequency in the defined table. */ - while (freq_table[i + 1].frequency != CPUFREQ_TABLE_END) { - if (freq < freq_table[i].frequency + - (freq_table[i + 1].frequency - freq_table[i].frequency) / 2) - return freq_table[i].frequency; - i++; - } - - return freq_table[i].frequency; -} - static int dbx500_cpufreq_init(struct cpufreq_policy *policy) { + policy->clk = armss_clk; return cpufreq_generic_init(policy, freq_table, 20 * 1000); } @@ -52,7 +37,7 @@ static struct cpufreq_driver dbx500_cpufreq_driver = { CPUFREQ_NEED_INITIAL_FREQ_CHECK, .verify = cpufreq_generic_frequency_table_verify, .target_index = dbx500_cpufreq_target, - .get = dbx500_cpufreq_getspeed, + .get = cpufreq_generic_get, .init = dbx500_cpufreq_init, .name = "DBX500", .attr = cpufreq_generic_attr, |