3.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Johan Hovold <jhov...@gmail.com>
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 <jhov...@gmail.com>
Acked-by: Jingoo Han <jg1....@samsung.com>
Signed-off-by: Andrew Morton <a...@linux-foundation.org>
Signed-off-by: Linus Torvalds <torva...@linux-foundation.org>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <b...@decadent.org.uk>
Cc: Qiang Huang <h.huangqi...@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/video/backlight/atmel-pwm-bl.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- 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(st
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);
--
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