We have common infrastructure available with us for getting a CPUs clk rate. Lets use it for this driver.
We don't need a global variable to hold clock anymore.
Cc: Kukjin Kim kgene.kim@samsung.com Signed-off-by: Viresh Kumar viresh.kumar@linaro.org --- drivers/cpufreq/s3c24xx-cpufreq.c | 10 +++------- drivers/cpufreq/s3c64xx-cpufreq.c | 33 ++++++++++++--------------------- 2 files changed, 15 insertions(+), 28 deletions(-)
diff --git a/drivers/cpufreq/s3c24xx-cpufreq.c b/drivers/cpufreq/s3c24xx-cpufreq.c index 4850882..7be6c2d 100644 --- a/drivers/cpufreq/s3c24xx-cpufreq.c +++ b/drivers/cpufreq/s3c24xx-cpufreq.c @@ -355,11 +355,6 @@ static int s3c_cpufreq_target(struct cpufreq_policy *policy, return -EINVAL; }
-static unsigned int s3c_cpufreq_get(unsigned int cpu) -{ - return clk_get_rate(clk_arm) / 1000; -} - struct clk *s3c_cpufreq_clk_get(struct device *dev, const char *name) { struct clk *clk; @@ -373,6 +368,7 @@ struct clk *s3c_cpufreq_clk_get(struct device *dev, const char *name)
static int s3c_cpufreq_init(struct cpufreq_policy *policy) { + policy->clk = clk_arm; return cpufreq_generic_init(policy, ftab, cpu_cur.info->latency); }
@@ -408,7 +404,7 @@ static int s3c_cpufreq_suspend(struct cpufreq_policy *policy) { suspend_pll.frequency = clk_get_rate(_clk_mpll); suspend_pll.driver_data = __raw_readl(S3C2410_MPLLCON); - suspend_freq = s3c_cpufreq_get(0) * 1000; + suspend_freq = clk_get_rate(clk_arm);
return 0; } @@ -450,7 +446,7 @@ static int s3c_cpufreq_resume(struct cpufreq_policy *policy) static struct cpufreq_driver s3c24xx_driver = { .flags = CPUFREQ_STICKY, .target = s3c_cpufreq_target, - .get = s3c_cpufreq_get, + .get = cpufreq_generic_get, .init = s3c_cpufreq_init, .suspend = s3c_cpufreq_suspend, .resume = s3c_cpufreq_resume, diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c index 67e302e..02feae3 100644 --- a/drivers/cpufreq/s3c64xx-cpufreq.c +++ b/drivers/cpufreq/s3c64xx-cpufreq.c @@ -19,7 +19,6 @@ #include <linux/regulator/consumer.h> #include <linux/module.h>
-static struct clk *armclk; static struct regulator *vddarm; static unsigned long regulator_latency;
@@ -54,14 +53,6 @@ static struct cpufreq_frequency_table s3c64xx_freq_table[] = { }; #endif
-static unsigned int s3c64xx_cpufreq_get_speed(unsigned int cpu) -{ - if (cpu != 0) - return 0; - - return clk_get_rate(armclk) / 1000; -} - static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy, unsigned int index) { @@ -69,7 +60,7 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy, unsigned int old_freq, new_freq; int ret;
- old_freq = clk_get_rate(armclk) / 1000; + old_freq = clk_get_rate(policy->clk) / 1000; new_freq = s3c64xx_freq_table[index].frequency; dvfs = &s3c64xx_dvfs_table[s3c64xx_freq_table[index].driver_data];
@@ -86,7 +77,7 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy, } #endif
- ret = clk_set_rate(armclk, new_freq * 1000); + ret = clk_set_rate(policy->clk, new_freq * 1000); if (ret < 0) { pr_err("Failed to set rate %dkHz: %d\n", new_freq, ret); @@ -101,7 +92,7 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy, if (ret != 0) { pr_err("Failed to set VDDARM for %dkHz: %d\n", new_freq, ret); - if (clk_set_rate(armclk, old_freq * 1000) < 0) + if (clk_set_rate(policy->clk, old_freq * 1000) < 0) pr_err("Failed to restore original clock rate\n");
return ret; @@ -110,7 +101,7 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy, #endif
pr_debug("Set actual frequency %lukHz\n", - clk_get_rate(armclk) / 1000); + clk_get_rate(policy->clk) / 1000);
return 0; } @@ -169,11 +160,11 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy) return -ENODEV; }
- armclk = clk_get(NULL, "armclk"); - if (IS_ERR(armclk)) { + policy->clk = clk_get(NULL, "armclk"); + if (IS_ERR(policy->clk)) { pr_err("Unable to obtain ARMCLK: %ld\n", - PTR_ERR(armclk)); - return PTR_ERR(armclk); + PTR_ERR(policy->clk)); + return PTR_ERR(policy->clk); }
#ifdef CONFIG_REGULATOR @@ -193,7 +184,7 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy) unsigned long r;
/* Check for frequencies we can generate */ - r = clk_round_rate(armclk, freq->frequency * 1000); + r = clk_round_rate(policy->clk, freq->frequency * 1000); r /= 1000; if (r != freq->frequency) { pr_debug("%dkHz unsupported by clock\n", @@ -203,7 +194,7 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy)
/* If we have no regulator then assume startup * frequency is the maximum we can support. */ - if (!vddarm && freq->frequency > s3c64xx_cpufreq_get_speed(0)) + if (!vddarm && freq->frequency > clk_get_rate(policy->clk) / 1000) freq->frequency = CPUFREQ_ENTRY_INVALID;
freq++; @@ -219,7 +210,7 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy) pr_err("Failed to configure frequency table: %d\n", ret); regulator_put(vddarm); - clk_put(armclk); + clk_put(policy->clk); }
return ret; @@ -229,7 +220,7 @@ static struct cpufreq_driver s3c64xx_cpufreq_driver = { .flags = 0, .verify = cpufreq_generic_frequency_table_verify, .target_index = s3c64xx_cpufreq_set_target, - .get = s3c64xx_cpufreq_get_speed, + .get = cpufreq_generic_get, .init = s3c64xx_cpufreq_driver_init, .name = "s3c", };