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ath9k: fix fullsleep power consumption when BTCOEX is enabled 

As soon as the interface brought up, btcoex timer starts running
eventhough the interface is in idle state and WLAN chip is moved
to full sleep mode. There is no point in running btcoex timer when
the wlan interface is in sleep mode and also it might consumes
more power on WLAN idle unassociated state. So lets stop the
btcoex when wlan is idle state.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rajkumar Manoharan 2012-07-01 19:53:53 +05:30 committed by John W. Linville
parent 54717e5330
commit b73f3e7804
1 changed files with 5 additions and 6 deletions
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11
drivers/net/wireless/ath/ath9k/main.c
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@ -666,8 +666,6 @@ static int ath9k_start(struct ieee80211_hw *hw)
spin_unlock_bh(&sc->sc_pcu_lock);
ath9k_start_btcoex(sc);
if (ah->caps.pcie_lcr_extsync_en && common->bus_ops->extn_synch_en)
common->bus_ops->extn_synch_en(common);
@ -774,8 +772,6 @@ static void ath9k_stop(struct ieee80211_hw *hw)
/* Ensure HW is awake when we try to shut it down. */
ath9k_ps_wakeup(sc);
ath9k_stop_btcoex(sc);
spin_lock_bh(&sc->sc_pcu_lock);
/* prevent tasklets to enable interrupts once we disable them */
@ -1139,14 +1135,17 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
if (changed & IEEE80211_CONF_CHANGE_IDLE) {
sc->ps_idle = !!(conf->flags & IEEE80211_CONF_IDLE);
if (sc->ps_idle)
if (sc->ps_idle) {
ath_cancel_work(sc);
else
ath9k_stop_btcoex(sc);
} else {
ath9k_start_btcoex(sc);
/*
* The chip needs a reset to properly wake up from
* full sleep
*/
reset_channel = ah->chip_fullsleep;
}
}
/*