linux-kernel - [PATCH] cpufreq: exynos: Show list of available frequencies

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Date:	Tue,  8 Jan 2013 16:20:58 +0530
From:	Inderpal Singh <inderpal.singh@...aro.org>
To:	linux-pm@...ts.linux-foundation.org
Cc:	rjw@...k.pl, linux-samsung-soc@...r.kernel.org,
	linux-kernel@...r.kernel.org, cpufreq@...r.kernel.org,
	kgene.kim@...sung.com, patches@...aro.org
Subject: [PATCH] cpufreq: exynos: Show list of available frequencies

Add freq_attr attribute to show list of available frequencies.

Signed-off-by: Donggeun Kim <dg77.kim@...sung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@...sung.com>
Signed-off-by: KyungMin Park <kyungmin.park@...sung.com>
Signed-off-by: Inderpal Singh <inderpal.singh@...aro.org>
---
 drivers/cpufreq/exynos-cpufreq.c |   13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index 7012ea8..bc1e833 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -244,13 +244,26 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	return cpufreq_frequency_table_cpuinfo(policy, exynos_info->freq_table);
 }
 
+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 struct cpufreq_driver exynos_driver = {
 	.flags		= CPUFREQ_STICKY,
 	.verify		= exynos_verify_speed,
 	.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,
-- 
1.7.9.5

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