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

commit ad5066d4c2b1d696749f8d7816357c23b648c4d3 upstream.

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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c
index 30e4ed52d701..6d2edeb85ac2 100644
--- a/drivers/video/backlight/atmel-pwm-bl.c
+++ b/drivers/video/backlight/atmel-pwm-bl.c
@@ -207,8 +207,10 @@ 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);
         backlight_device_unregister(pwmbl->bldev);