diff mbox series

mfd: max8997: Disable interrupt handling for suspend/resume cycle

Message ID 20180905123043.22604-1-m.szyprowski@samsung.com
State Accepted
Commit c1aaaa1cb7c82fe53463fba4928405fddcc4ea27
Headers show
Series mfd: max8997: Disable interrupt handling for suspend/resume cycle | expand

Commit Message

Marek Szyprowski Sept. 5, 2018, 12:30 p.m. UTC 
Disable IRQs during suspend/resume cycle to ensure handling of wakeup
interrupts (i.e. RTC wake alarm) after max8997_resume(). This way it can
be properly handled when I2C bus is finally available. This pattern is
also used in other MAX PMIC MFD drivers.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>

---
 drivers/mfd/max8997.c | 2 ++
 1 file changed, 2 insertions(+)

-- 
2.17.1
diff mbox series

Patch

diff --git a/drivers/mfd/max8997.c b/drivers/mfd/max8997.c
index d1495d76bf2c..5a50ea976c70 100644
--- a/drivers/mfd/max8997.c
+++ b/drivers/mfd/max8997.c
@@ -464,6 +464,7 @@  static int max8997_suspend(struct device *dev)
 
 	if (device_may_wakeup(dev))
 		irq_set_irq_wake(max8997->irq, 1);
+	disable_irq(max8997->irq);
 	return 0;
 }
 
@@ -474,6 +475,7 @@  static int max8997_resume(struct device *dev)
 
 	if (device_may_wakeup(dev))
 		irq_set_irq_wake(max8997->irq, 0);
+	enable_irq(max8997->irq);
 	return max8997_irq_resume(max8997);
 }