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leds: after setting inverted attribute, we must update the LED 

If we change the inverted attribute to another value, the LED will not be
inverted until we change the GPIO state.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Cc: Samuel R. C. Vale <srcvale@holoscopio.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Thadeu Lima de Souza Cascardo 2009-08-26 14:29:32 -07:00 committed by Linus Torvalds
parent 48cccd26f3
commit cc674c81f0
1 changed files with 3 additions and 0 deletions
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3
drivers/leds/ledtrig-gpio.c
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@ -117,6 +117,9 @@ static ssize_t gpio_trig_inverted_store(struct device *dev,
gpio_data->inverted = !!inverted; gpio_data->inverted = !!inverted;
/* After inverting, we need to update the LED. */
schedule_work(&gpio_data->work);
return n; return n;
} }
static DEVICE_ATTR(inverted, 0644, gpio_trig_inverted_show, static DEVICE_ATTR(inverted, 0644, gpio_trig_inverted_show,