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Date: Fri, 22 Mar 2019 16:44:04 +0100 From: Arnd Bergmann <arnd@...db.de> To: stable@...r.kernel.org, MyungJoo Ham <myungjoo.ham@...sung.com>, Chanwoo Choi <cw00.choi@...sung.com> Cc: Roger Quadros <rogerq@...com>, Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org Subject: [BACKPORT 4.4.y 13/25] extcon: usb-gpio: Don't miss event during suspend/resume From: Roger Quadros <rogerq@...com> 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@...com> Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com> (cherry picked from commit 04c080080855ce84dcd490a2e04805608a21085d) Signed-off-by: Arnd Bergmann <arnd@...db.de> --- drivers/extcon/extcon-usb-gpio.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/extcon/extcon-usb-gpio.c b/drivers/extcon/extcon-usb-gpio.c index 2b2fecffb1ad..c6a7c9ddf0ac 100644 --- a/drivers/extcon/extcon-usb-gpio.c +++ b/drivers/extcon/extcon-usb-gpio.c @@ -192,6 +192,9 @@ static int usb_extcon_resume(struct device *dev) } enable_irq(info->id_irq); + if (!device_may_wakeup(dev)) + queue_delayed_work(system_power_efficient_wq, + &info->wq_detcable, 0); return ret; } -- 2.20.0
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