Commit 5f033420 authored by Roger Tseng's avatar Roger Tseng Committed by Lee Jones
Browse files

mfd: rtsx_usb: Add comment in rtsx_usb_suspend 



Explain why there is no need to have a symmetric LED turn-on in resume handler
while calling rtsx_usb_turn_off_led() in suspend handler.

Signed-off-by: default avatarRoger Tseng <rogerable@realtek.com>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent fea52b89

drivers/mfd/rtsx_usb.c

+6 −0
Original line number Diff line number Diff line
@@ -687,9 +687,15 @@ static int rtsx_usb_suspend(struct usb_interface *intf, pm_message_t message) 
	dev_dbg(&intf->dev, "%s called with pm message 0x%04u\n",

			__func__, message.event);



	/*

	 * Call to make sure LED is off during suspend to save more power.

	 * It is NOT a permanent state and could be turned on anytime later.

	 * Thus no need to call turn_on when resunming.

	 */

	mutex_lock(&ucr->dev_mutex);

	rtsx_usb_turn_off_led(ucr);

	mutex_unlock(&ucr->dev_mutex);



	return 0;

}