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* [PATCH] b43: only hardcode LED behavior if SPROM doesn't encode any
@ 2016-06-03 21:04 Lucas Stach
  2016-06-03 21:09   ` Michael Büsch
                   ` (2 more replies)
  0 siblings, 3 replies; 5+ messages in thread
From: Lucas Stach @ 2016-06-03 21:04 UTC (permalink / raw)
  To: Kalle Valo, Michael Buesch; +Cc: linux-wireless, b43-dev

Only hardcode the LED behavior if the SROM doesn't provide any for all
LEDs of the card. This avoids instantiating LED triggers for unconnected
LEDs, while (hopefully) keeping things working for old cards with a
blank SROM.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
---
 drivers/net/wireless/broadcom/b43/leds.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/broadcom/b43/leds.c b/drivers/net/wireless/broadcom/b43/leds.c
index d79ab2a..cb987c2 100644
--- a/drivers/net/wireless/broadcom/b43/leds.c
+++ b/drivers/net/wireless/broadcom/b43/leds.c
@@ -222,7 +222,7 @@ static void b43_led_get_sprominfo(struct b43_wldev *dev,
 	sprom[2] = dev->dev->bus_sprom->gpio2;
 	sprom[3] = dev->dev->bus_sprom->gpio3;
 
-	if (sprom[led_index] == 0xFF) {
+	if ((sprom[0] & sprom[1] & sprom[2] & sprom[3]) == 0xff) {
 		/* There is no LED information in the SPROM
 		 * for this LED. Hardcode it here. */
 		*activelow = false;
@@ -250,7 +250,11 @@ static void b43_led_get_sprominfo(struct b43_wldev *dev,
 			return;
 		}
 	} else {
-		*behaviour = sprom[led_index] & B43_LED_BEHAVIOUR;
+		/* keep LED disabled if no mapping is defined */
+		if (sprom[led_index] == 0xff)
+			*behaviour = B43_LED_OFF;
+		else
+			*behaviour = sprom[led_index] & B43_LED_BEHAVIOUR;
 		*activelow = !!(sprom[led_index] & B43_LED_ACTIVELOW);
 	}
 }
-- 
2.5.5

^ permalink raw reply related	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2016-06-16 15:15 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-06-03 21:04 [PATCH] b43: only hardcode LED behavior if SPROM doesn't encode any Lucas Stach
2016-06-03 21:09 ` Michael Büsch
2016-06-03 21:09   ` Michael Büsch
2016-06-16 15:15 ` Kalle Valo
2016-06-16 15:15 ` Kalle Valo

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