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authorVittorio Gambaletta (VittGam) <linux-wireless@vittgam.net>2016-04-11 05:48:54 +0300
committerKalle Valo <kvalo@qca.qualcomm.com>2016-04-25 20:37:03 +0300
commitcd84042ce9040ad038e958bc67a46fcfc015c736 (patch)
treee94dd7bf6d29e5e6248ba20ca34a3caea87e6bd7 /drivers/net/wireless/ath/ath9k
parent1fe63c9ca8913eb7af6c428cf81abad29e0bc9d6 (diff)
downloadlinux-cd84042ce9040ad038e958bc67a46fcfc015c736.tar.xz
ath9k: Add a module parameter to invert LED polarity.
The LED can be active high instead of active low on some hardware. Add the led_active_high module parameter. It defaults to -1 to obey platform data as before. Setting the parameter to 1 or 0 will force the LED respectively active high or active low. Cc: <linux-wireless@vger.kernel.org> Cc: <ath9k-devel@qca.qualcomm.com> Cc: <ath9k-devel@lists.ath9k.org> Cc: <stable@vger.kernel.org> Signed-off-by: Vittorio Gambaletta <linuxbugs@vittgam.net> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k')
-rw-r--r--drivers/net/wireless/ath/ath9k/init.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index fb702c48a233..535b1644501c 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -49,6 +49,10 @@ int ath9k_led_blink;
module_param_named(blink, ath9k_led_blink, int, 0444);
MODULE_PARM_DESC(blink, "Enable LED blink on activity");
+static int ath9k_led_active_high = -1;
+module_param_named(led_active_high, ath9k_led_active_high, int, 0444);
+MODULE_PARM_DESC(led_active_high, "Invert LED polarity");
+
static int ath9k_btcoex_enable;
module_param_named(btcoex_enable, ath9k_btcoex_enable, int, 0444);
MODULE_PARM_DESC(btcoex_enable, "Enable wifi-BT coexistence");
@@ -600,6 +604,9 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
if (ret)
return ret;
+ if (ath9k_led_active_high != -1)
+ ah->config.led_active_high = ath9k_led_active_high == 1;
+
/*
* Enable WLAN/BT RX Antenna diversity only when:
*