linux-kernel - [PATCH 4.4 36/86] Input: xpad - use LED API when identifying wireless controllers

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Message-Id: <20181129140113.104788905@linuxfoundation.org>
Date:   Thu, 29 Nov 2018 15:12:01 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.4 36/86] Input: xpad - use LED API when identifying wireless controllers

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

[ Upstream commit d9be398afb2c3333716324352d062c50112e4e86 ]

When lighting up the segment identifying wireless controller, Instead of
sending command directly to the controller, let's do it via LED API (usinf
led_set_brightness) so that LED object state is in sync with controller
state and we'll light up the correct segment on resume as well.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/input/joystick/xpad.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 0caced4a68cc..c3a38804cdc0 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -1142,7 +1142,7 @@ static void xpad_send_led_command(struct usb_xpad *xpad, int command)
  */
 static void xpad_identify_controller(struct usb_xpad *xpad)
 {
-	xpad_send_led_command(xpad, (xpad->pad_nr % 4) + 2);
+	led_set_brightness(&xpad->led->led_cdev, (xpad->pad_nr % 4) + 2);
 }
 
 static void xpad_led_set(struct led_classdev *led_cdev,
-- 
2.17.1