Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 3867cf6a authored by Sujith's avatar Sujith Committed by John W. Linville
Browse files

ath9k: fix suspend by waking device prior to stop 



Ensure the device is awake prior to trying to tell hardware
to stop it. Impact of not doing this is we can likely leave
the device in an undefined state likely causing issues with
suspend and resume. This patch ensures harware is where it
should be prior to suspend.

Cc: stable@kernel.org
Signed-off-by: default avatarSujith <Sujith.Manoharan@atheros.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 65486c8b

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

+6 −0
Original line number Diff line number Diff line
@@ -2514,6 +2514,9 @@ static void ath9k_stop(struct ieee80211_hw *hw) 
		return; /* another wiphy still in use */

	}



	/* Ensure HW is awake when we try to shut it down. */

	ath9k_ps_wakeup(sc);



	if (ah->btcoex_hw.enabled) {

		ath9k_hw_btcoex_disable(ah);

		if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
@@ -2534,6 +2537,9 @@ static void ath9k_stop(struct ieee80211_hw *hw) 
	/* disable HAL and put h/w to sleep */

	ath9k_hw_disable(ah);

	ath9k_hw_configpcipowersave(ah, 1, 1);

	ath9k_ps_restore(sc);



	/* Finally, put the chip in FULL SLEEP mode */

	ath9k_setpower(sc, ATH9K_PM_FULL_SLEEP);



	sc->sc_flags |= SC_OP_INVALID;