diff options
| author | Johan Hovold <jhovold@gmail.com> | 2013-11-12 15:09:39 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-06-07 16:02:15 -0700 |
| commit | 4381872d5a41635275c291f2a7c523197ba1f5e1 (patch) | |
| tree | 26d378ba196f49af98293c782884aff157e6793e /drivers | |
| parent | c341968e1a44810713ade43ca8b0f5dd802a1ce9 (diff) | |
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>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Qiang Huang <h.huangqiang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/backlight/atmel-pwm-bl.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c index 4d2bbd893e88..dab3a0c9f480 100644 --- a/drivers/video/backlight/atmel-pwm-bl.c +++ b/drivers/video/backlight/atmel-pwm-bl.c @@ -211,7 +211,8 @@ static int __exit 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); + gpio_set_value(pwmbl->gpio_on, + 0 ^ pwmbl->pdata->on_active_low); gpio_free(pwmbl->gpio_on); } pwm_channel_disable(&pwmbl->pwmc); |