We have common infrastructure available with us for getting a CPUs clk rate. Lets use it for this driver.
Acked-by: Hans-Christian Egtvedt egtvedt@samfundet.no Signed-off-by: Viresh Kumar viresh.kumar@linaro.org --- drivers/cpufreq/at32ap-cpufreq.c | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-)
diff --git a/drivers/cpufreq/at32ap-cpufreq.c b/drivers/cpufreq/at32ap-cpufreq.c index 856ad80..869c0b5 100644 --- a/drivers/cpufreq/at32ap-cpufreq.c +++ b/drivers/cpufreq/at32ap-cpufreq.c @@ -21,17 +21,8 @@ #include <linux/export.h> #include <linux/slab.h>
-static struct clk *cpuclk; static struct cpufreq_frequency_table *freq_table;
-static unsigned int at32_get_speed(unsigned int cpu) -{ - /* No SMP support */ - if (cpu) - return 0; - return (unsigned int)((clk_get_rate(cpuclk) + 500) / 1000); -} - static unsigned int ref_freq; static unsigned long loops_per_jiffy_ref;
@@ -39,7 +30,7 @@ static int at32_set_target(struct cpufreq_policy *policy, unsigned int index) { unsigned int old_freq, new_freq;
- old_freq = at32_get_speed(0); + old_freq = policy->cur; new_freq = freq_table[index].frequency;
if (!ref_freq) { @@ -50,7 +41,7 @@ static int at32_set_target(struct cpufreq_policy *policy, unsigned int index) if (old_freq < new_freq) boot_cpu_data.loops_per_jiffy = cpufreq_scale( loops_per_jiffy_ref, ref_freq, new_freq); - clk_set_rate(cpuclk, new_freq * 1000); + clk_set_rate(policy->clk, new_freq * 1000); if (new_freq < old_freq) boot_cpu_data.loops_per_jiffy = cpufreq_scale( loops_per_jiffy_ref, ref_freq, new_freq); @@ -61,6 +52,7 @@ static int at32_set_target(struct cpufreq_policy *policy, unsigned int index) static int __init at32_cpufreq_driver_init(struct cpufreq_policy *policy) { unsigned int frequency, rate, min_freq; + static struct clk *cpuclk; int retval, steps, i;
if (policy->cpu != 0) @@ -103,6 +95,7 @@ static int __init at32_cpufreq_driver_init(struct cpufreq_policy *policy) frequency /= 2; }
+ policy->clk = cpuclk; freq_table[steps - 1].frequency = CPUFREQ_TABLE_END;
retval = cpufreq_table_validate_and_show(policy, freq_table); @@ -123,7 +116,7 @@ static struct cpufreq_driver at32_driver = { .init = at32_cpufreq_driver_init, .verify = cpufreq_generic_frequency_table_verify, .target_index = at32_set_target, - .get = at32_get_speed, + .get = cpufreq_generic_get, .flags = CPUFREQ_STICKY, };