linux-kernel - [PATCH 227/228] cpufreq: tegra: use cpufreq_generic

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Message-Id: <4c538174b86604a7d9e5b9e0d2521b881704005e.1379063063.git.viresh.kumar@linaro.org>
Date:	Fri, 13 Sep 2013 18:32:53 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	rjw@...k.pl
Cc:	linaro-kernel@...ts.linaro.org, patches@...aro.org,
	cpufreq@...r.kernel.org, linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Stephen Warren <swarren@...dia.com>
Subject: [PATCH 227/228] cpufreq: tegra: use cpufreq_generic_get() routine

We have common infrastructure available with us for getting a CPUs clk rate.
Lets use it for this driver.

Cc: Stephen Warren <swarren@...dia.com>
Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
 drivers/cpufreq/tegra-cpufreq.c | 16 +++-------------
 1 file changed, 3 insertions(+), 13 deletions(-)

diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c
index 7d36b54..360d1a7 100644
--- a/drivers/cpufreq/tegra-cpufreq.c
+++ b/drivers/cpufreq/tegra-cpufreq.c
@@ -50,17 +50,6 @@ static struct clk *emc_clk;
 static DEFINE_MUTEX(tegra_cpu_lock);
 static bool is_suspended;
 
-static unsigned int tegra_getspeed(unsigned int cpu)
-{
-	unsigned long rate;
-
-	if (cpu >= NUM_CPUS)
-		return 0;
-
-	rate = clk_get_rate(cpu_clk) / 1000;
-	return rate;
-}
-
 static int tegra_cpu_clk_set_rate(unsigned long rate)
 {
 	int ret;
@@ -144,7 +133,7 @@ static int tegra_pm_notify(struct notifier_block *nb, unsigned long event,
 		is_suspended = true;
 		pr_info("Tegra cpufreq suspend: setting frequency to %d kHz\n",
 			freq_table[0].frequency);
-		if (tegra_getspeed(0) != freq_table[0].frequency)
+		if (clk_get_rate(cpu_clk) / 1000 != freq_table[0].frequency)
 			tegra_update_cpu_speed(policy, freq_table[0].frequency);
 		cpufreq_cpu_put(policy);
 	} else if (event == PM_POST_SUSPEND) {
@@ -180,6 +169,7 @@ static int tegra_cpu_init(struct cpufreq_policy *policy)
 	if (policy->cpu == 0)
 		register_pm_notifier(&tegra_cpu_pm_notifier);
 
+	policy->clk = cpu_clk;
 	return 0;
 }
 
@@ -194,7 +184,7 @@ static int tegra_cpu_exit(struct cpufreq_policy *policy)
 static struct cpufreq_driver tegra_cpufreq_driver = {
 	.verify		= cpufreq_generic_frequency_table_verify,
 	.target_index	= tegra_target,
-	.get		= tegra_getspeed,
+	.get		= cpufreq_generic_get,
 	.init		= tegra_cpu_init,
 	.exit		= tegra_cpu_exit,
 	.name		= "tegra",
-- 
1.7.12.rc2.18.g61b472e

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