lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ath9k: Revamp PCIE workarounds

Browse Source 
* Disable L1 state ONLY when device is in D3 mode.
* Clear bit 22 of register 0x4004.
* Handle power on/off properly

Not setting the workarounds properly resulted in the
disappearance of the card in certain cases.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Vivek Natarajan
2009-09-17 09:24:58 +05:30
committed by John W. Linville
parent 6170cd5c72
commit 93b1b37f6a
4 changed files with 107 additions and 76 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/net/wireless/ath/ath9k/main.c
View File

@ -1131,7 +1131,7 @@ void ath_radio_enable(struct ath_softc *sc)
int r;
ath9k_ps_wakeup(sc);
ath9k_hw_configpcipowersave(ah, 0);
ath9k_hw_configpcipowersave(ah, 0, 0);
if (!ah->curchan)
ah->curchan = ath_get_curchannel(sc, sc->hw);
@ -1202,7 +1202,7 @@ void ath_radio_disable(struct ath_softc *sc)
spin_unlock_bh(&sc->sc_resetlock);
ath9k_hw_phy_disable(ah);
ath9k_hw_configpcipowersave(ah, 1);
ath9k_hw_configpcipowersave(ah, 1, 1);
ath9k_ps_restore(sc);
ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
}
@ -1942,7 +1942,7 @@ static int ath9k_start(struct ieee80211_hw *hw)
init_channel = ath_get_curchannel(sc, hw);
/* Reset SERDES registers */
ath9k_hw_configpcipowersave(sc->sc_ah, 0);
ath9k_hw_configpcipowersave(sc->sc_ah, 0, 0);
/*
* The basic interface to setting the hardware in a good
@ -2170,7 +2170,7 @@ static void ath9k_stop(struct ieee80211_hw *hw)
/* disable HAL and put h/w to sleep */
ath9k_hw_disable(sc->sc_ah);
ath9k_hw_configpcipowersave(sc->sc_ah, 1);
ath9k_hw_configpcipowersave(sc->sc_ah, 1, 1);
ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP);
sc->sc_flags |= SC_OP_INVALID;