ath9k: cleanup led_pin initial

Make ath_init_leds() and ath_deinit_leds() pairs as the only
API to set leds, also removed direction configuration from
ath9k_start() and ath9k_stop(). So the initial is more clear
now.

Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/ath9k/ath9k.h

@@ -813,7 +813,6 @@ static inline int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
 #ifdef CONFIG_MAC80211_LEDS
 void ath_init_leds(struct ath_softc *sc);
 void ath_deinit_leds(struct ath_softc *sc);
-void ath_fill_led_pin(struct ath_softc *sc);
 #else
 static inline void ath_init_leds(struct ath_softc *sc)
 {
@@ -822,9 +821,6 @@ static inline void ath_init_leds(struct ath_softc *sc)
 static inline void ath_deinit_leds(struct ath_softc *sc)
 {
 }
-static inline void ath_fill_led_pin(struct ath_softc *sc)
-{
-}
 #endif
 
 /************************/

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

@@ -21,6 +21,33 @@
 /********************************/
 
 #ifdef CONFIG_MAC80211_LEDS
+
+void ath_fill_led_pin(struct ath_softc *sc)
+{
+	struct ath_hw *ah = sc->sc_ah;
+
+	/* Set default led pin if invalid */
+	if (ah->led_pin < 0) {
+		if (AR_SREV_9287(ah))
+			ah->led_pin = ATH_LED_PIN_9287;
+		else if (AR_SREV_9485(ah))
+			ah->led_pin = ATH_LED_PIN_9485;
+		else if (AR_SREV_9300(ah))
+			ah->led_pin = ATH_LED_PIN_9300;
+		else if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
+			ah->led_pin = ATH_LED_PIN_9462;
+		else
+			ah->led_pin = ATH_LED_PIN_DEF;
+	}
+
+	/* Configure gpio for output */
+	ath9k_hw_gpio_request_out(ah, ah->led_pin, "ath9k-led",
+				  AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
+
+	/* LED off, active low */
+	ath9k_hw_set_gpio(ah, ah->led_pin, ah->config.led_active_high ? 0 : 1);
+}
+
 static void ath_led_brightness(struct led_classdev *led_cdev,
 			       enum led_brightness brightness)
 {
@@ -51,6 +78,8 @@ void ath_init_leds(struct ath_softc *sc)
 	if (AR_SREV_9100(sc->sc_ah))
 		return;
 
+	ath_fill_led_pin(sc);
+
 	if (!ath9k_led_blink)
 		sc->led_cdev.default_trigger =
 			ieee80211_get_radio_led_name(sc->hw);
@@ -66,39 +95,6 @@ void ath_init_leds(struct ath_softc *sc)
 
 	sc->led_registered = true;
 }
-
-void ath_fill_led_pin(struct ath_softc *sc)
-{
-	struct ath_hw *ah = sc->sc_ah;
-
-	if (AR_SREV_9100(ah))
-		return;
-
-	if (ah->led_pin >= 0) {
-		if (!((1 << ah->led_pin) & AR_GPIO_OE_OUT_MASK))
-			ath9k_hw_gpio_request_out(ah, ah->led_pin, "ath9k-led",
-						  AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
-		return;
-	}
-
-	if (AR_SREV_9287(ah))
-		ah->led_pin = ATH_LED_PIN_9287;
-	else if (AR_SREV_9485(sc->sc_ah))
-		ah->led_pin = ATH_LED_PIN_9485;
-	else if (AR_SREV_9300(sc->sc_ah))
-		ah->led_pin = ATH_LED_PIN_9300;
-	else if (AR_SREV_9462(sc->sc_ah) || AR_SREV_9565(sc->sc_ah))
-		ah->led_pin = ATH_LED_PIN_9462;
-	else
-		ah->led_pin = ATH_LED_PIN_DEF;
-
-	/* Configure gpio 1 for output */
-	ath9k_hw_gpio_request_out(ah, ah->led_pin, "ath9k-led",
-				  AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
-
-	/* LED off, active low */
-	ath9k_hw_set_gpio(ah, ah->led_pin, (ah->config.led_active_high) ? 0 : 1);
-}
 #endif
 
 /*******************/

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

@@ -660,7 +660,6 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
 
 	ath9k_cmn_init_crypto(sc->sc_ah);
 	ath9k_init_misc(sc);
-	ath_fill_led_pin(sc);
 	ath_chanctx_init(sc);
 	ath9k_offchannel_init(sc);
 

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

@@ -718,12 +718,9 @@ static int ath9k_start(struct ieee80211_hw *hw)
 	if (!ath_complete_reset(sc, false))
 		ah->reset_power_on = false;
 
-	if (ah->led_pin >= 0) {
+	if (ah->led_pin >= 0)
 		ath9k_hw_set_gpio(ah, ah->led_pin,
 				  (ah->config.led_active_high) ? 1 : 0);
-		ath9k_hw_gpio_request_out(ah, ah->led_pin, NULL,
-					  AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
-	}
 
 	/*
 	 * Reset key cache to sane defaults (all entries cleared) instead of
@@ -867,11 +864,9 @@ static void ath9k_stop(struct ieee80211_hw *hw)
 
 	spin_lock_bh(&sc->sc_pcu_lock);
 
-	if (ah->led_pin >= 0) {
+	if (ah->led_pin >= 0)
 		ath9k_hw_set_gpio(ah, ah->led_pin,
 				  (ah->config.led_active_high) ? 0 : 1);
-		ath9k_hw_gpio_request_in(ah, ah->led_pin, NULL);
-	}
 
 	ath_prepare_reset(sc);
 

drivers/net/wireless/ath/ath9k/reg.h

@@ -1168,8 +1168,6 @@ enum {
 
 #define AR_GPIO_OE_OUT                           (AR_SREV_9340(ah) ? 0x4030 : \
 						  (AR_SREV_9300_20_OR_LATER(ah) ? 0x4050 : 0x404c))
-#define AR_GPIO_OE_OUT_MASK			 (AR_SREV_9550_OR_LATER(ah) ? \
-						  0x0000000F : 0xFFFFFFFF)
 #define AR_GPIO_OE_OUT_DRV                       0x3
 #define AR_GPIO_OE_OUT_DRV_NO                    0x0
 #define AR_GPIO_OE_OUT_DRV_LOW                   0x1