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authorDonggeun Kim <dg77.kim@samsung.com>2011-07-19 14:41:57 +0900
committerDave Jones <davej@redhat.com>2011-10-26 17:19:45 -0400
commit5beae3b9b6f5479998310a849f73aa32a637dd3b (patch)
tree4e2ff681b95d117e996faad58f9bbdcab5b29ad3 /drivers/cpufreq/exynos4210-cpufreq.c
parent138c4ae9cfda8fdcf9e137457853b09ef8cf8f77 (diff)
[CPUFREQ] exynos4210: Show list of available frequencies
This patch enables 'scaling_available_frequencies' attribute showing list of available frequencies. Signed-off-by: Donggeun Kim <dg77.kim@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: KyungMin Park <kyungmin.park@samsung.com> Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'drivers/cpufreq/exynos4210-cpufreq.c')
-rw-r--r--drivers/cpufreq/exynos4210-cpufreq.c23
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/cpufreq/exynos4210-cpufreq.c b/drivers/cpufreq/exynos4210-cpufreq.c
index b7c3a84c4cf..6f887573ce9 100644
--- a/drivers/cpufreq/exynos4210-cpufreq.c
+++ b/drivers/cpufreq/exynos4210-cpufreq.c
@@ -464,6 +464,8 @@ static int exynos4_cpufreq_resume(struct cpufreq_policy *policy)
static int exynos4_cpufreq_cpu_init(struct cpufreq_policy *policy)
{
+ int ret;
+
policy->cur = policy->min = policy->max = exynos4_getspeed(policy->cpu);
cpufreq_frequency_table_get_attr(exynos4_freq_table, policy->cpu);
@@ -479,16 +481,35 @@ static int exynos4_cpufreq_cpu_init(struct cpufreq_policy *policy)
*/
cpumask_setall(policy->cpus);
- return cpufreq_frequency_table_cpuinfo(policy, exynos4_freq_table);
+ ret = cpufreq_frequency_table_cpuinfo(policy, exynos4_freq_table);
+ if (ret)
+ return ret;
+
+ cpufreq_frequency_table_get_attr(exynos4_freq_table, policy->cpu);
+
+ return 0;
}
+static int exynos4_cpufreq_cpu_exit(struct cpufreq_policy *policy)
+{
+ cpufreq_frequency_table_put_attr(policy->cpu);
+ return 0;
+}
+
+static struct freq_attr *exynos4_cpufreq_attr[] = {
+ &cpufreq_freq_attr_scaling_available_freqs,
+ NULL,
+};
+
static struct cpufreq_driver exynos4_driver = {
.flags = CPUFREQ_STICKY,
.verify = exynos4_verify_speed,
.target = exynos4_target,
.get = exynos4_getspeed,
.init = exynos4_cpufreq_cpu_init,
+ .exit = exynos4_cpufreq_cpu_exit,
.name = "exynos4_cpufreq",
+ .attr = exynos4_cpufreq_attr,
#ifdef CONFIG_PM
.suspend = exynos4_cpufreq_suspend,
.resume = exynos4_cpufreq_resume,