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

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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: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau 2012-04-12 20:36:31 +02:00 committed by John W. Linville
parent 2db0d2ba97
commit 75600abf19
1 changed files with 8 additions and 1 deletions
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9
drivers/net/wireless/ath/ath9k/main.c
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@ -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;