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authorViresh Kumar <viresh.kumar@linaro.org>2013-10-03 20:42:11 +0530
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-10-16 00:50:35 +0200
commit99d428cf0bcdbbbdeb622c338cd5ab72189e8d22 (patch)
treeadc236f5b76c56f006d251d9dc432d3d5ec559b5
parentcpufreq: spear: use cpufreq_generic_init() (diff)
downloadlinux-dev-99d428cf0bcdbbbdeb622c338cd5ab72189e8d22.tar.xz
linux-dev-99d428cf0bcdbbbdeb622c338cd5ab72189e8d22.zip
cpufreq: tegra: use cpufreq_generic_init()
Use generic cpufreq_generic_init() routine instead of replicating the same code here. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-rw-r--r--drivers/cpufreq/tegra-cpufreq.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c
index 9c32b23322bd..32483ef63d53 100644
--- a/drivers/cpufreq/tegra-cpufreq.c
+++ b/drivers/cpufreq/tegra-cpufreq.c
@@ -204,19 +204,23 @@ static struct notifier_block tegra_cpu_pm_notifier = {
static int tegra_cpu_init(struct cpufreq_policy *policy)
{
+ int ret;
+
if (policy->cpu >= NUM_CPUS)
return -EINVAL;
clk_prepare_enable(emc_clk);
clk_prepare_enable(cpu_clk);
- cpufreq_table_validate_and_show(policy, freq_table);
target_cpu_speed[policy->cpu] = tegra_getspeed(policy->cpu);
/* FIXME: what's the actual transition time? */
- policy->cpuinfo.transition_latency = 300 * 1000;
-
- cpumask_copy(policy->cpus, cpu_possible_mask);
+ ret = cpufreq_generic_init(policy, freq_table, 300 * 1000);
+ if (ret) {
+ clk_disable_unprepare(cpu_clk);
+ clk_disable_unprepare(emc_clk);
+ return ret;
+ }
if (policy->cpu == 0)
register_pm_notifier(&tegra_cpu_pm_notifier);
@@ -227,6 +231,7 @@ static int tegra_cpu_init(struct cpufreq_policy *policy)
static int tegra_cpu_exit(struct cpufreq_policy *policy)
{
cpufreq_frequency_table_put_attr(policy->cpu);
+ clk_disable_unprepare(cpu_clk);
clk_disable_unprepare(emc_clk);
return 0;
}