diff options
| author |   Pierre Gondois <pierre.gondois@arm.com> | 2022-07-04 13:27:36 +0200 |
|---|---|---|
| committer |   Viresh Kumar <viresh.kumar@linaro.org> | 2022-07-13 16:53:00 +0530 |
| commit | cdcf8eb3e7d0557405414459c6ead0385a5c6cc7 (patch) | |
| tree | 8cca3d947375452260b0b1d380948366a86d8020 /drivers/cpufreq/qcom-cpufreq-hw.c | |
| parent | cpufreq: qcom-cpufreq-hw: use HZ_PER_KHZ macro in units.h (diff) | |
| download | linux-dev-cdcf8eb3e7d0557405414459c6ead0385a5c6cc7.tar.xz linux-dev-cdcf8eb3e7d0557405414459c6ead0385a5c6cc7.zip | |
cpufreq: qcom-hw: Reset cancel_throttle when policy is re-enabled
If LMH (Limits Management Hardware) is available, when a policy is
disabled by unplugging the last online CPU of policy->cpus,
qcom_cpufreq_hw_cpu_offline() sets cancel_throttle=true.
cancel_throttle is not reset when the policy is re-enabled with any
of the CPU in policy->cpus being plugged in. So reset it.
This patch also adds an early exit check.
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'drivers/cpufreq/qcom-cpufreq-hw.c')
| -rw-r--r-- | drivers/cpufreq/qcom-cpufreq-hw.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/cpufreq/qcom-cpufreq-hw.c b/drivers/cpufreq/qcom-cpufreq-hw.c index 072a4b31f98e..b57a1e508a8c 100644 --- a/drivers/cpufreq/qcom-cpufreq-hw.c +++ b/drivers/cpufreq/qcom-cpufreq-hw.c @@ -444,6 +444,10 @@ static int qcom_cpufreq_hw_cpu_online(struct cpufreq_policy *policy) if (data->throttle_irq <= 0) return 0; + mutex_lock(&data->throttle_lock); + data->cancel_throttle = false; + mutex_unlock(&data->throttle_lock); + ret = irq_set_affinity_hint(data->throttle_irq, policy->cpus); if (ret) dev_err(&pdev->dev, "Failed to set CPU affinity of %s[%d]\n", |