diff options
| author | Sujith Manoharan <c_manoha@qca.qualcomm.com> | 2014-11-16 06:11:02 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-11-17 15:32:16 -0500 |
| commit | aeeb2065794361f823e17a20af0db18b3a369845 (patch) | |
| tree | 04fb73ce164d0f29b26c314516b06b0fd1790b48 /drivers/net/wireless/ath/ath9k/gpio.c | |
| parent | 46270d077a761e72fc6ea5ec5a76c5ef2e61782b (diff) | |
| download | lwn-aeeb2065794361f823e17a20af0db18b3a369845.tar.gz lwn-aeeb2065794361f823e17a20af0db18b3a369845.zip | |
ath9k: Fix LED configuration
On some x86 platforms, the LED gpio is active high
instead of active low. Identify such cards and modify
the GPIO usage to make sure LED works properly.
Cc: Russell Hu <rhu@qca.qualcomm.com>
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/gpio.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/gpio.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath9k/gpio.c b/drivers/net/wireless/ath/ath9k/gpio.c index b1956bf6e01e..2fef7a480fec 100644 --- a/drivers/net/wireless/ath/ath9k/gpio.c +++ b/drivers/net/wireless/ath/ath9k/gpio.c @@ -25,7 +25,12 @@ static void ath_led_brightness(struct led_classdev *led_cdev, enum led_brightness brightness) { struct ath_softc *sc = container_of(led_cdev, struct ath_softc, led_cdev); - ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, (brightness == LED_OFF)); + u32 val = (brightness == LED_OFF); + + if (sc->sc_ah->config.led_active_high) + val = !val; + + ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, val); } void ath_deinit_leds(struct ath_softc *sc) @@ -82,7 +87,7 @@ void ath_fill_led_pin(struct ath_softc *sc) ath9k_hw_cfg_output(ah, ah->led_pin, AR_GPIO_OUTPUT_MUX_AS_OUTPUT); /* LED off, active low */ - ath9k_hw_set_gpio(ah, ah->led_pin, 1); + ath9k_hw_set_gpio(ah, ah->led_pin, (ah->config.led_active_high) ? 0 : 1); } #endif |