[PATCH 5.8 506/633] ARM: OMAP2+: Restore MPU power domain if cpu_cluster_pm_enter() fails

[Greg Kroah-Hartman]

From: Tony Lindgren <t...@atomide.com>

[ Upstream commit 8f04aea048d56f3e39a7e543939450246542a6fc ]

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: 55be2f50336f ("ARM: OMAP2+: Handle errors for cpu_pm")
Signed-off-by: Tony Lindgren <t...@atomide.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 arch/arm/mach-omap2/cpuidle44xx.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-omap2/cpuidle44xx.c 
b/arch/arm/mach-omap2/cpuidle44xx.c
index 6f5f89711f256..a92d277f81a08 100644
--- a/arch/arm/mach-omap2/cpuidle44xx.c
+++ b/arch/arm/mach-omap2/cpuidle44xx.c
@@ -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;
+                       }
                }
        }
 
-- 
2.25.1