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ARM: OMAP2+: Restore MPU power domain if cpu_cluster_pm_enter() fails 

[ Upstream commit 8f04aea048 ]

If cpu_cluster_pm_enter() fails, we need to set MPU power domain back
to enabled to prevent the next WFI from potentially triggering an
undesired MPU power domain state change.

We already do this for omap_enter_idle_smp() but are missing it for
omap_enter_idle_coupled().

Fixes: 55be2f5033 ("ARM: OMAP2+: Handle errors for cpu_pm")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Tony Lindgren 2020-09-23 09:16:22 +03:00 committed by Greg Kroah-Hartman
parent 55a7acbc04
commit 64b8f8fbe9
1 changed files with 3 additions and 1 deletions
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4
arch/arm/mach-omap2/cpuidle44xx.c
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@ -174,8 +174,10 @@ static int omap_enter_idle_coupled(struct cpuidle_device *dev,
*/
if (mpuss_can_lose_context) {
error = cpu_cluster_pm_enter();
if (error)
if (error) {
omap_set_pwrdm_state(mpu_pd, PWRDM_POWER_ON);
goto cpu_cluster_pm_out;
}
}
}