diff options
| author | Rafael J. Wysocki <rjw@rjwysocki.net> | 2013-10-26 00:36:40 +0400 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@rjwysocki.net> | 2013-10-26 00:36:40 +0400 |
| commit | 6ddee424fea2d269c2f402278d93165c7b92dc58 (patch) | |
| tree | c1b1d0d9058846a6da22def648dea61e16faacd0 /drivers/cpufreq/tegra-cpufreq.c | |
| parent | e4db1c7439b31993a4886b273bb9235a8eea82bf (diff) | |
| parent | a814613b9a32d9ab9578d9dab396265c826d37f0 (diff) | |
| download | linux-6ddee424fea2d269c2f402278d93165c7b92dc58.tar.xz | |
Merge back earlier 'pm-cpufreq' material.
Conflicts:
drivers/cpufreq/omap-cpufreq.c
Diffstat (limited to 'drivers/cpufreq/tegra-cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/tegra-cpufreq.c | 33 |
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) |