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authorChristian Lamparter <chunkeey@web.de>2009-05-25 21:51:19 +0200
committerJohn W. Linville <linville@tuxdriver.com>2009-06-03 14:05:15 -0400
commit2431fe9a4b43ccf03589fa661662da6bfbd97282 (patch)
treef609096a84180829aea2a2820048c00890d21970 /drivers/net/wireless/ath
parent95cf8769bba6ea595994f786ea63f7e2948133de (diff)
ar9170: fix LED power state handling
This patch fixes a minor visual bug in the led code, which left the LED in the wrong power state when it was toggled in a _unexpected_ way (e.g: enabling the LED twice). Signed-off-by: Christian Lamparter <chunkeey@web.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath')
-rw-r--r--drivers/net/wireless/ath/ar9170/ar9170.h1
-rw-r--r--drivers/net/wireless/ath/ar9170/led.c7
2 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ar9170/ar9170.h b/drivers/net/wireless/ath/ar9170/ar9170.h
index 1247dcb9081..396b24016f5 100644
--- a/drivers/net/wireless/ath/ar9170/ar9170.h
+++ b/drivers/net/wireless/ath/ar9170/ar9170.h
@@ -91,6 +91,7 @@ struct ar9170_led {
struct led_classdev l;
char name[32];
unsigned int toggled;
+ bool last_state;
bool registered;
};
diff --git a/drivers/net/wireless/ath/ar9170/led.c b/drivers/net/wireless/ath/ar9170/led.c
index 341cead7f60..3c8a5728920 100644
--- a/drivers/net/wireless/ath/ar9170/led.c
+++ b/drivers/net/wireless/ath/ar9170/led.c
@@ -101,9 +101,12 @@ static void ar9170_led_brightness_set(struct led_classdev *led,
struct ar9170_led *arl = container_of(led, struct ar9170_led, l);
struct ar9170 *ar = arl->ar;
- arl->toggled++;
+ if (arl->last_state != !!brightness) {
+ arl->toggled++;
+ arl->last_state = !!brightness;
+ }
- if (likely(IS_ACCEPTING_CMD(ar) && brightness))
+ if (likely(IS_ACCEPTING_CMD(ar) && arl->toggled))
queue_delayed_work(ar->hw->workqueue, &ar->led_work, HZ/10);
}