ath9k: Allow configuration of LED polarity in platform data.

Some devices running OpenWrt need this and it makes sense to add this
to ath9k_platform_data as the next patches will add a devicetree
(boolean) property for it as well.
Suggested-by: NVittorio Gambaletta <openwrt@vittgam.net>
Signed-off-by: NMartin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/ath9k/init.c

@@ -527,6 +527,9 @@ static int ath9k_init_soc_platform(struct ath_softc *sc)
 			return ret;
 	}
 
+	if (pdata->led_active_high)
+		ah->config.led_active_high = true;
+
 	if (pdata->tx_gain_buffalo)
 		ah->config.tx_gain_buffalo = true;
 

include/linux/ath9k_platform.h

@@ -40,6 +40,7 @@ struct ath9k_platform_data {
 	bool tx_gain_buffalo;
 	bool disable_2ghz;
 	bool disable_5ghz;
+	bool led_active_high;
 
 	int (*get_mac_revision)(void);
 	int (*external_reset)(void);