[PATCH 4.6 038/121] ath9k: Add a module parameter to invert LED polarity.
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2016-06-05 22:15:40
Also in:
lkml, stable
4.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Vittorio Gambaletta (VittGam) <redacted> 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: <redacted> Cc: <redacted> Cc: <redacted> Signed-off-by: Vittorio Gambaletta <redacted> Signed-off-by: Kalle Valo <redacted> 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: *