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| author |   Marek Szyprowski <m.szyprowski@samsung.com> | 2018-09-05 16:36:06 +0200 |
|---|---|---|
| committer |   Lee Jones <lee.jones@linaro.org> | 2018-10-23 08:58:34 +0100 |
| commit | c1aaaa1cb7c82fe53463fba4928405fddcc4ea27 (patch) | |
| tree | dbd515f2d147ea8c7bb2b164021ec26758d6864a /drivers/mfd/max8997.c | |
| parent | mfd: max8997: Enale irq-wakeup unconditionally (diff) | |
| download | linux-dev-c1aaaa1cb7c82fe53463fba4928405fddcc4ea27.tar.xz linux-dev-c1aaaa1cb7c82fe53463fba4928405fddcc4ea27.zip | |
mfd: max8997: Disable interrupt handling for suspend/resume cycle
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>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/max8997.c')
| -rw-r--r-- | drivers/mfd/max8997.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mfd/max8997.c b/drivers/mfd/max8997.c index f99e8da99782..8c06c09e36d1 100644 --- a/drivers/mfd/max8997.c +++ b/drivers/mfd/max8997.c @@ -448,6 +448,7 @@ 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; @@ -460,6 +461,7 @@ 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); } |