From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: ath9k-devel@lists.ath9k.org
Subject: [ath9k-devel] [PATCH 4.4 31/99] ath9k: Add a module parameter to invert LED polarity.
Date: Sun, 5 Jun 2016 14:41:04 -0700 [thread overview]
Message-ID: <20160605213906.087797175@linuxfoundation.org> (raw)
In-Reply-To: <20160605213902.974592018@linuxfoundation.org>
4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Vittorio Gambaletta (VittGam) <linux-wireless@vittgam.net>
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@vger.kernel.org>
Cc: <ath9k-devel@qca.qualcomm.com>
Cc: <ath9k-devel@lists.ath9k.org>
Signed-off-by: Vittorio Gambaletta <linuxbugs@vittgam.net>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/wireless/ath/ath9k/init.c | 7 +++++++
1 file changed, 7 insertions(+)
--- 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, s
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:
*
next parent reply other threads:[~2016-06-05 21:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20160605213902.974592018@linuxfoundation.org>
2016-06-05 21:41 ` Greg Kroah-Hartman [this message]
2016-06-05 21:41 ` [ath9k-devel] [PATCH 4.4 32/99] ath9k: Fix LED polarity for some Mini PCI AR9220 MB92 cards Greg Kroah-Hartman
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