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| author | Inderpal Singh <inderpal.singh@linaro.org> | 2012-02-07 11:29:30 +0530 |
|---|---|---|
| committer | Tushar Behera <tushar.behera@linaro.org> | 2012-05-17 10:31:08 +0530 |
| commit | 6befa1fba60528e346c0310caab4b5a012e3a8b4 (patch) | |
| tree | d6827bfee66d5a604edf7d35864e2dca9d4e6d4d | |
| parent | e24b75d7de62491feee4ac0e73769738f1363610 (diff) | |
| download | linux-topics-6befa1fba60528e346c0310caab4b5a012e3a8b4.tar.gz | |
exynos: 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>
[inderpal.singh@linaro.org: Updated as per common cpufreq driver]
Signed-off-by: Inderpal Singh <inderpal.singh@linaro.org>
| -rw-r--r-- | drivers/cpufreq/exynos-cpufreq.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c index 7ebd6b7bdd1..749be588c41 100644 --- a/drivers/cpufreq/exynos-cpufreq.c +++ b/drivers/cpufreq/exynos-cpufreq.c @@ -233,6 +233,8 @@ static struct notifier_block exynos_cpufreq_reboot_nb = { 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); @@ -255,16 +257,35 @@ 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 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 exynos_driver = { .flags = CPUFREQ_STICKY, .verify = exynos_verify_speed, .target = exynos_target, .get = exynos_getspeed, .init = exynos_cpufreq_cpu_init, + .exit = exynos4_cpufreq_cpu_exit, .name = "exynos_cpufreq", + .attr = exynos4_cpufreq_attr, #ifdef CONFIG_PM .suspend = exynos_cpufreq_suspend, .resume = exynos_cpufreq_resume, |