[PATCH v2] extcon: usb-gpio: Don't miss event during suspend/resume

From: Roger Quadros
Date: Fri Apr 08 2016 - 03:35:32 EST


Pin state might have changed during suspend/resume while
our interrupts were disabled and if device doesn't support wakeup.

Scan for change during resume for such case.

Signed-off-by: Roger Quadros <rogerq@xxxxxx>
---
v2:
- only check for state change during resume if device wakeup is not supported

drivers/extcon/extcon-usb-gpio.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/extcon/extcon-usb-gpio.c b/drivers/extcon/extcon-usb-gpio.c
index bc61d11..118f8ab 100644
--- a/drivers/extcon/extcon-usb-gpio.c
+++ b/drivers/extcon/extcon-usb-gpio.c
@@ -185,6 +185,8 @@ static int usb_extcon_resume(struct device *dev)
int ret = 0;

enable_irq(info->id_irq);
+ if (!device_may_wakeup(dev))
+ usb_extcon_detect_cable(&info->wq_detcable.work);

return ret;
}
--
2.5.0