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path: root/drivers/cpufreq/s3c64xx-cpufreq.c
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Diffstat (limited to 'drivers/cpufreq/s3c64xx-cpufreq.c')
-rw-r--r--drivers/cpufreq/s3c64xx-cpufreq.c35
1 files changed, 13 insertions, 22 deletions
diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c
index 67e302eeefec..c4226de079ab 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++;
@@ -219,17 +210,17 @@ 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;
}
static struct cpufreq_driver s3c64xx_cpufreq_driver = {
- .flags = 0,
+ .flags = CPUFREQ_NEED_INITIAL_FREQ_CHECK,
.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",
};