summaryrefslogtreecommitdiffstats
path: root/drivers/cpufreq/tegra-cpufreq.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/cpufreq/tegra-cpufreq.c')
-rw-r--r--drivers/cpufreq/tegra-cpufreq.c33
1 files changed, 13 insertions, 20 deletions
diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c
index a7b876fdc1d8..32483ef63d53 100644
--- a/drivers/cpufreq/tegra-cpufreq.c
+++ b/drivers/cpufreq/tegra-cpufreq.c
@@ -51,11 +51,6 @@ static unsigned long target_cpu_speed[NUM_CPUS];
static DEFINE_MUTEX(tegra_cpu_lock);
static bool is_suspended;
-static int tegra_verify_speed(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, freq_table);
-}
-
static unsigned int tegra_getspeed(unsigned int cpu)
{
unsigned long rate;
@@ -209,21 +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_frequency_table_cpuinfo(policy, freq_table);
- cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
- policy->cur = tegra_getspeed(policy->cpu);
- target_cpu_speed[policy->cpu] = policy->cur;
+ 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);
@@ -233,24 +230,20 @@ static int tegra_cpu_init(struct cpufreq_policy *policy)
static int tegra_cpu_exit(struct cpufreq_policy *policy)
{
- cpufreq_frequency_table_cpuinfo(policy, freq_table);
+ cpufreq_frequency_table_put_attr(policy->cpu);
+ clk_disable_unprepare(cpu_clk);
clk_disable_unprepare(emc_clk);
return 0;
}
-static struct freq_attr *tegra_cpufreq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver tegra_cpufreq_driver = {
- .verify = tegra_verify_speed,
+ .verify = cpufreq_generic_frequency_table_verify,
.target = tegra_target,
.get = tegra_getspeed,
.init = tegra_cpu_init,
.exit = tegra_cpu_exit,
.name = "tegra",
- .attr = tegra_cpufreq_attr,
+ .attr = cpufreq_generic_attr,
};
static int __init tegra_cpufreq_init(void)
OpenPOWER on IntegriCloud