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ath9k: Revamp PCIE workarounds

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* 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
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drivers/net/wireless/ath/ath9k/hw.h
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@ -650,7 +650,7 @@ void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
const struct ath9k_beacon_state *bs);
bool ath9k_hw_setpower(struct ath_hw *ah,
enum ath9k_power_mode mode);
void ath9k_hw_configpcipowersave(struct ath_hw *ah, int restore);
void ath9k_hw_configpcipowersave(struct ath_hw *ah, int restore, int power_off);
/* Interrupt Handling */
bool ath9k_hw_intrpend(struct ath_hw *ah);