From cc674c81f01a6151ca00c617e5efa0812ee5fdbe Mon Sep 17 00:00:00 2001
From: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Date: Wed, 26 Aug 2009 14:29:32 -0700
Subject: [PATCH] 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>
---
 drivers/leds/ledtrig-gpio.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/leds/ledtrig-gpio.c b/drivers/leds/ledtrig-gpio.c
index 8183b81fca84..1bc5db4ece0d 100644
--- a/drivers/leds/ledtrig-gpio.c
+++ b/drivers/leds/ledtrig-gpio.c
@@ -117,6 +117,9 @@ static ssize_t gpio_trig_inverted_store(struct device *dev,
 
 	gpio_data->inverted = !!inverted;
 
+	/* After inverting, we need to update the LED. */
+	schedule_work(&gpio_data->work);
+
 	return n;
 }
 static DEVICE_ATTR(inverted, 0644, gpio_trig_inverted_show,
-- 
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