This patch enables 'scaling_available_frequencies' attribute
showing list of available frequencies.
Signed-off-by: Donggeun Kim <dg77.kim@xxxxxxxxxxx>
Signed-off-by: MyungJoo Ham <myungjoo.ham@xxxxxxxxxxx>
Signed-off-by: KyungMin Park <kyungmin.park@xxxxxxxxxxx>
---
drivers/cpufreq/exynos4210-cpufreq.c | 23 ++++++++++++++++++++++-
1 files changed, 22 insertions(+), 1 deletions(-)
diff --git a/drivers/cpufreq/exynos4210-cpufreq.c b/drivers/cpufreq/exynos4210-cpufreq.c
index b7c3a84..6f88757 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,
--
1.7.4.1
--
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