Input: twl4030-pwrbutton - report a wakeup_event on button press

As the power button causes a wake from suspend, we need to register
the event with the pm sustem to avoid racing with suspend.

As the input event is reported in the interrupt handler, as simple
pm_wakeup_event() is sufficient.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/input/misc/twl4030-pwrbutton.c b/drivers/input/misc/twl4030-pwrbutton.c
index 38e4b507b94c..b3dd96d6448b 100644
--- a/drivers/input/misc/twl4030-pwrbutton.c
+++ b/drivers/input/misc/twl4030-pwrbutton.c
@@ -42,6 +42,7 @@ static irqreturn_t powerbutton_irq(int irq, void *_pwr)
         err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &value,
                                 STS_HW_CONDITIONS);
         if (!err)  {
+                pm_wakeup_event(pwr->dev.parent, 0);
                 input_report_key(pwr, KEY_POWER, value & PWR_PWRON_IRQ);
                 input_sync(pwr);
         } else {