From: Grygorii Strashko <[email protected]>
We currently rely on runtime PM to enable dedicated wakeirq for suspend.
This assumption fails in the following two cases:
1. If the consumer driver does not have runtime PM implemented, the
dedicated wakeirq never gets enabled for suspend
2. If the consumer driver has runtime PM implemented, but does not idle
in suspend
Let's fix the issue by always enabling the dedicated wakeirq during
suspend.
Depends-on: bed570307ed7 ("PM / wakeirq: Fix dedicated wakeirq for
drivers not using autosuspend")
Fixes: 4990d4fe327b ("PM / Wakeirq: Add automated device wake IRQ
handling")
Cc: Brian Norris <[email protected]>
Cc: Tero Kristo <[email protected]>
Reported-by: Keerthy <[email protected]>
Tested-by: Keerthy <[email protected]>
Signed-off-by: Grygorii Strashko <[email protected]>
[[email protected]: updated based on bed570307ed7, added description]
Tested-by: Tony Lindgren <[email protected]>
Signed-off-by: Tony Lindgren <[email protected]>
---
drivers/base/power/wakeirq.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/base/power/wakeirq.c b/drivers/base/power/wakeirq.c
--- a/drivers/base/power/wakeirq.c
+++ b/drivers/base/power/wakeirq.c
@@ -312,8 +312,12 @@ void dev_pm_arm_wake_irq(struct wake_irq *wirq)
if (!wirq)
return;
- if (device_may_wakeup(wirq->dev))
+ if (device_may_wakeup(wirq->dev)) {
+ if (wirq->status & WAKE_IRQ_DEDICATED_ALLOCATED)
+ enable_irq(wirq->irq);
+
enable_irq_wake(wirq->irq);
+ }
}
/**
@@ -328,6 +332,10 @@ void dev_pm_disarm_wake_irq(struct wake_irq *wirq)
if (!wirq)
return;
- if (device_may_wakeup(wirq->dev))
+ if (device_may_wakeup(wirq->dev)) {
disable_irq_wake(wirq->irq);
+
+ if (wirq->status & WAKE_IRQ_DEDICATED_ALLOCATED)
+ disable_irq_nosync(wirq->irq);
+ }
}
--
2.11.1
