extcon: gpio: Add power resume support

When system on the suspend state, Some SoC can't get gpio interrupt.
After system resume, need send extcon uevent to userspace.

Signed-off-by: Rongjun Ying <rongjun.ying@csr.com>
Reviewed-by: Barry Song <Baohua.Song@csr.com>
Acked-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
diff --git a/include/linux/extcon/extcon-gpio.h b/include/linux/extcon/extcon-gpio.h
index 4195810..8900fdf 100644
--- a/include/linux/extcon/extcon-gpio.h
+++ b/include/linux/extcon/extcon-gpio.h
@@ -51,6 +51,7 @@
 	/* if NULL, "0" or "1" will be printed */
 	const char *state_on;
 	const char *state_off;
+	bool check_on_resume;
 };
 
 #endif /* __EXTCON_GPIO_H__ */