From: Johan Hovold <jhovold@gmail.com>
Date: Tue, 12 Nov 2013 23:09:39 +0000 (-0800)
Subject: backlight: atmel-pwm-bl: fix gpio polarity in remove
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ad5066d4c2b1d696749f8d7816357c23b648c4d3;p=linux-beck.git

backlight: atmel-pwm-bl: fix gpio polarity in remove

Make sure to honour gpio polarity also at remove so that the backlight is
actually disabled on boards with active-low enable pin.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c
index 0971a8e78fbd..e21beb6ad943 100644
--- a/drivers/video/backlight/atmel-pwm-bl.c
+++ b/drivers/video/backlight/atmel-pwm-bl.c
@@ -205,8 +205,10 @@ static int atmel_pwm_bl_remove(struct platform_device *pdev)
 {
 	struct atmel_pwm_bl *pwmbl = platform_get_drvdata(pdev);
 
-	if (pwmbl->gpio_on != -1)
-		gpio_set_value(pwmbl->gpio_on, 0);
+	if (pwmbl->gpio_on != -1) {
+		gpio_set_value(pwmbl->gpio_on,
+					0 ^ pwmbl->pdata->on_active_low);
+	}
 	pwm_channel_disable(&pwmbl->pwmc);
 	pwm_channel_free(&pwmbl->pwmc);