ath9k: Fix the LED behaviour in idle unassociated state.

LED should be ON when the radio is put into FULL SLEEP mode during the idle
unassociated state.
Signed-off-by: NVivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

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

@@ -857,9 +857,14 @@ void ath_radio_disable(struct ath_softc *sc, struct ieee80211_hw *hw)
 	ath9k_ps_wakeup(sc);
 	ieee80211_stop_queues(hw);
 
-	/* Disable LED */
-	ath9k_hw_set_gpio(ah, ah->led_pin, 1);
-	ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
+	/*
+	 * Keep the LED on when the radio is disabled
+	 * during idle unassociated state.
+	 */
+	if (!sc->ps_idle) {
+		ath9k_hw_set_gpio(ah, ah->led_pin, 1);
+		ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
+	}
 
 	/* Disable interrupts */
 	ath9k_hw_set_interrupts(ah, 0);