This is a note to let you know that I have just added a patch titled
ath9k: Add a module parameter to invert LED polarity.
to the linux-3.19.y-queue branch of the 3.19.y-ckt extended stable tree
which can be found at:
https://git.launchpad.net/~canonical-kernel/linux/+git/linux-stable-ckt/log/?h=linux-3.19.y-queue
This patch is scheduled to be released in version 3.19.8-ckt23.
If you, or anyone else, feels it should not be added to this tree, please
reply to this email.
For more information about the 3.19.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable
Thanks.
-Kamal
---8<------------------------------------------------------------
>From 7ab5b39f6e7c918ea8d2471d8f6d296d04ae72a4 Mon Sep 17 00:00:00 2001
From: "Vittorio Gambaletta (VittGam)" <linux-wireless@xxxxxxxxxxx>
Date: Mon, 11 Apr 2016 04:48:54 +0200
Subject: ath9k: Add a module parameter to invert LED polarity.
commit cd84042ce9040ad038e958bc67a46fcfc015c736 upstream.
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@xxxxxxxxxxxxxxx>
Cc: <ath9k-devel@xxxxxxxxxxxxxxxx>
Cc: <ath9k-devel@xxxxxxxxxxxxxxx>
Signed-off-by: Vittorio Gambaletta <linuxbugs@xxxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/init.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index a218a00..d7c1a02 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -49,6 +49,10 @@ int led_blink;
module_param_named(blink, 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");
@@ -582,6 +586,9 @@ 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:
*
--
2.7.4
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