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authorPierre Gondois <pierre.gondois@arm.com>2022-07-04 13:27:36 +0200
committerViresh Kumar <viresh.kumar@linaro.org>2022-07-13 16:53:00 +0530
commitcdcf8eb3e7d0557405414459c6ead0385a5c6cc7 (patch)
tree8cca3d947375452260b0b1d380948366a86d8020 /drivers/cpufreq/qcom-cpufreq-hw.c
parent9de0d75bb379c06e6d22e4b39552069fd9c869aa (diff)
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.c4
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",