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Commit 75600abf authored by Felix Fietkau's avatar Felix Fietkau Committed by John W. Linville
Browse files

ath9k: wake up the hardware from full sleep when idle is turned off 



The hardware needs a reset to recover from full sleep. Issue this reset
directly in the ath9k_config call that turns off idle, otherwise tx
remains dead until the first channel change after the idle state change

Signed-off-by: default avatarFelix Fietkau <nbd@openwrt.org>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 2db0d2ba

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

+8 −1
Original line number Diff line number Diff line
@@ -1548,6 +1548,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) 
	struct ath_hw *ah = sc->sc_ah;

	struct ath_common *common = ath9k_hw_common(ah);

	struct ieee80211_conf *conf = &hw->conf;

	bool reset_channel = false;



	ath9k_ps_wakeup(sc);

	mutex_lock(&sc->mutex);
@@ -1556,6 +1557,12 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) 
		sc->ps_idle = !!(conf->flags & IEEE80211_CONF_IDLE);

		if (sc->ps_idle)

			ath_cancel_work(sc);

		else

			/*

			 * The chip needs a reset to properly wake up from

			 * full sleep

			 */

			reset_channel = ah->chip_fullsleep;

	}



	/*
@@ -1584,7 +1591,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) 
		}

	}



	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {

	if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) || reset_channel) {

		struct ieee80211_channel *curchan = hw->conf.channel;

		int pos = curchan->hw_value;

		int old_pos = -1;