diff options
| author | Hector Martin <marcan@marcan.st> | 2023-01-04 13:21:49 +0300 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2023-01-04 13:47:07 +0300 |
| commit | c956541736b94944047ee52ebfc5ee4babcd6ca1 (patch) | |
| tree | 0d1d2e1ae19a65afe5f3f13da8b6e0b6088dbdc6 /drivers/cpufreq/apple-soc-cpufreq.c | |
| parent | 53cd37c1368d07649421517ed0aab94a49cca003 (diff) | |
| download | linux-c956541736b94944047ee52ebfc5ee4babcd6ca1.tar.xz | |
cpufreq: apple-soc: Switch to the lowest frequency on suspend
Without this, the CPUs are left in a random pstate. Since we don't
support deep idle yet (which powers down the CPUs), this results in
significantly increased idle power consumption in suspend.
Fixes: 6286bbb40576 ("cpufreq: apple-soc: Add new driver to control Apple SoC CPU P-states")
Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'drivers/cpufreq/apple-soc-cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/apple-soc-cpufreq.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/cpufreq/apple-soc-cpufreq.c b/drivers/cpufreq/apple-soc-cpufreq.c index 6f26395184c4..c11d22fd84c3 100644 --- a/drivers/cpufreq/apple-soc-cpufreq.c +++ b/drivers/cpufreq/apple-soc-cpufreq.c @@ -280,6 +280,7 @@ static int apple_soc_cpufreq_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = transition_latency; policy->dvfs_possible_from_any_cpu = true; policy->fast_switch_possible = true; + policy->suspend_freq = freq_table[0].frequency; if (policy_has_boost_freq(policy)) { ret = cpufreq_enable_boost_support(); @@ -328,6 +329,7 @@ static struct cpufreq_driver apple_soc_cpufreq_driver = { .fast_switch = apple_soc_cpufreq_fast_switch, .register_em = cpufreq_register_em_with_opp, .attr = apple_soc_cpufreq_hw_attr, + .suspend = cpufreq_generic_suspend, }; static int __init apple_soc_cpufreq_module_init(void) |