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authorBjorn Andersson <bjorn.andersson@linaro.org>2022-01-28 06:25:54 +0300
committerViresh Kumar <viresh.kumar@linaro.org>2022-02-09 10:48:49 +0300
commitef8ee1cb8fc8976a68f5e89cd5f7b6f7de80c66f (patch)
tree005a02244cc4753b973132bf86610628fd200d33 /Documentation/arm/samsung
parent4f774c4a65bf3987d1a95c966e884f38c8a942af (diff)
downloadlinux-ef8ee1cb8fc8976a68f5e89cd5f7b6f7de80c66f.tar.xz
cpufreq: qcom-hw: Delay enabling throttle_irq
In the event that the SoC is under thermal pressure while booting it's possible for the dcvs notification to happen inbetween the cpufreq framework calling init and it actually updating the policy's related_cpus cpumask. Prior to the introduction of the thermal pressure update helper an empty cpumask would simply result in the thermal pressure of no cpus being updated, but the new code will attempt to dereference an invalid per_cpu variable. Avoid this problem by using the newly reintroduced "ready" callback, to postpone enabling the IRQ until the related_cpus cpumask is filled in. Fixes: 0258cb19c77d ("cpufreq: qcom-cpufreq-hw: Use new thermal pressure update function") Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'Documentation/arm/samsung')
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