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authorDonggeun Kim <dg77.kim@samsung.com>2011-07-19 14:41:57 +0900
committerKetut Putu Kumajaya <ketut.kumajaya@gmail.com>2014-07-23 09:54:52 +0700
commit89e6992285b4274996b39cd953c0adb5e95a3236 (patch)
tree70e0f44b2d1e491acb60f5fcdd99aea7a215397c
parenta784c375212d90c5ae7b75b8ccc67c6e0d364acd (diff)
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mach-exynos: cpufreq: Show list of available frequencies
This patch enables 'scaling_available_frequencies' attribute showing list of available frequencies. Change-Id: I9b6ad786ffaaba8ad6fe5aa9045fd793c095b5ae
-rw-r--r--arch/arm/mach-exynos/cpufreq.c23
1 files changed, 22 insertions, 1 deletions
diff --git a/arch/arm/mach-exynos/cpufreq.c b/arch/arm/mach-exynos/cpufreq.c
index cdfec03..b592651 100644
--- a/arch/arm/mach-exynos/cpufreq.c
+++ b/arch/arm/mach-exynos/cpufreq.c
@@ -709,6 +709,8 @@ static struct notifier_block exynos_cpufreq_policy_notifier = {
static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
{
+ int ret;
+
policy->cur = policy->min = policy->max = exynos_getspeed(policy->cpu);
cpufreq_frequency_table_get_attr(exynos_info->freq_table, policy->cpu);
@@ -729,9 +731,26 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
cpumask_setall(policy->cpus);
}
- return cpufreq_frequency_table_cpuinfo(policy, exynos_info->freq_table);
+ ret = cpufreq_frequency_table_cpuinfo(policy, exynos_info->freq_table);
+ if (ret)
+ return ret;
+
+ cpufreq_frequency_table_get_attr(exynos_info->freq_table, policy->cpu);
+
+ return 0;
+}
+
+static int exynos_cpufreq_cpu_exit(struct cpufreq_policy *policy)
+{
+ cpufreq_frequency_table_put_attr(policy->cpu);
+ return 0;
}
+static struct freq_attr *exynos_cpufreq_attr[] = {
+ &cpufreq_freq_attr_scaling_available_freqs,
+ NULL,
+};
+
static int exynos_cpufreq_reboot_notifier_call(struct notifier_block *this,
unsigned long code, void *_cmd)
{
@@ -755,7 +774,9 @@ static struct cpufreq_driver exynos_driver = {
.target = exynos_target,
.get = exynos_getspeed,
.init = exynos_cpufreq_cpu_init,
+ .exit = exynos_cpufreq_cpu_exit,
.name = "exynos_cpufreq",
+ .attr = exynos_cpufreq_attr,
#ifdef CONFIG_PM
.suspend = exynos_cpufreq_suspend,
.resume = exynos_cpufreq_resume,