Commit f7fca54a authored by Pierre Gondois's avatar Pierre Gondois Committed by Viresh Kumar
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cpufreq: qcom-hw: Disable LMH irq when disabling policy 



If LMH (Limits Management Hardware) is available, when a policy is
disabled by unplugging the last online CPU of policy->cpus, the LMH
irq is left enabled.
When the policy is re-enabled with any of the CPU in policy->cpus
being plugged in, qcom_cpufreq_ready() re-enables the irq. This
triggers the following warning:
[  379.160106] Unbalanced enable for IRQ 154
[  379.160120] WARNING: CPU: 7 PID: 48 at kernel/irq/manage.c:774 __enable_irq+0x84/0xc0
Thus disable the irq.

Signed-off-by: default avatarPierre Gondois <pierre.gondois@arm.com>
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
parent cdcf8eb3

drivers/cpufreq/qcom-cpufreq-hw.c

+1 −0
Original line number Diff line number Diff line
@@ -469,6 +469,7 @@ static int qcom_cpufreq_hw_cpu_offline(struct cpufreq_policy *policy) 


	cancel_delayed_work_sync(&data->throttle_work);

	irq_set_affinity_hint(data->throttle_irq, NULL);

	disable_irq_nosync(data->throttle_irq);



	return 0;

}