From: Grygorii Strashko <Grygorii.Strashko@xxxxxxxxxx>
The PM_RESTORE_PREPARE is not handled now in mmc_pm_notify(),
as result mmc_rescan() could be scheduled and executed at
late hibernation restore stages when MMC device is suspended
already - which, in turn, will lead to system crash on TI dra7-evm board:
WARNING: CPU: 0 PID: 3188 at drivers/bus/omap_l3_noc.c:148 l3_interrupt_handler+0x258/0x374()
44000000.ocp:L3 Custom Error: MASTER MPU TARGET L4_PER1_P3 (Idle): Data Access in User mode during Functional access
Hence, add missed PM_RESTORE_PREPARE PM event in mmc_pm_notify().
Signed-off-by: Grygorii Strashko <Grygorii.Strashko@xxxxxxxxxx>
---
drivers/mmc/core/core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index c296bc0..92e7671 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -2651,6 +2651,7 @@ int mmc_pm_notify(struct notifier_block *notify_block,
switch (mode) {
case PM_HIBERNATION_PREPARE:
case PM_SUSPEND_PREPARE:
+ case PM_RESTORE_PREPARE:
spin_lock_irqsave(&host->lock, flags);
host->rescan_disable = 1;
spin_unlock_irqrestore(&host->lock, flags);
--
1.9.1
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