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@xxxxxxxxxxx> --- changelog: v2: - reordered the sequence of operation as suggested by Krzysztof Kozlowski --- drivers/mfd/max8997.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mfd/max8997.c b/drivers/mfd/max8997.c index 3f554c447521..b17eff50ad52 100644 --- a/drivers/mfd/max8997.c +++ b/drivers/mfd/max8997.c @@ -468,6 +468,7 @@ static int max8997_suspend(struct device *dev) struct i2c_client *i2c = to_i2c_client(dev); struct max8997_dev *max8997 = i2c_get_clientdata(i2c); + disable_irq(max8997->irq); if (device_may_wakeup(dev)) irq_set_irq_wake(max8997->irq, 1); return 0; @@ -480,6 +481,7 @@ 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); } -- 2.17.1
