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arm: Call idle notifiers in CPU idle

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When CPU idle is enabled, the idle cal should also notifiy the
idle_notifier_call_chain of the change in status. Otherwise
some processes will think the CPU is always active.

Change-Id: I2fdfcae070d8f71b477adcb511a225f4eb8658f8
Signed-off-by: Tengfei Fan <tengfeif@codeaurora.org>
This commit is contained in:
Tengfei Fan
2020-07-03 13:37:01 +08:00
committed by Gerrit - the friendly Code Review server
parent 6f89af0466
commit 122d7168b2
1 changed files with 2 additions and 0 deletions
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2
arch/arm/kernel/process.c
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@@ -82,6 +82,7 @@ void arch_cpu_idle_prepare(void)
void arch_cpu_idle_enter(void)
{
idle_notifier_call_chain(IDLE_START);
ledtrig_cpu(CPU_LED_IDLE_START);
#ifdef CONFIG_PL310_ERRATA_769419
wmb();
@@ -90,6 +91,7 @@ void arch_cpu_idle_enter(void)
void arch_cpu_idle_exit(void)
{
idle_notifier_call_chain(IDLE_END);
ledtrig_cpu(CPU_LED_IDLE_END);
}