diff options
| author | Rajkumar Manoharan <rmanoharan@atheros.com> | 2011-01-27 18:39:37 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-02-17 15:13:56 -0800 |
| commit | bb0a047d608342d23717beb7a5005ef34119592c (patch) | |
| tree | 14a7376bec4ed4084e655d435da13a207572e1f1 | |
| parent | 753f1e0a1b142d08f2d9212843c275fbc62ffa51 (diff) | |
ath9k_hw: Fix system hang when resuming from S3/S4
commit 5b64aa72ead6f8be488d2be7af579f0d69fb7a6e upstream.
The bit 6 & 7 of AR_WA (0x4004) should be enabled only
for the chips that are supporting L0s functionality
while resuming back from S3/S4.
Enabling these bits for AR9280 is causing system hang
within a few S3/S4-resume cycles.
Cc: Jack Lee <jlee@atheros.com>
Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9002_hw.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9002_hw.c b/drivers/net/wireless/ath/ath9k/ar9002_hw.c index 48261b7252d..2528b299704 100644 --- a/drivers/net/wireless/ath/ath9k/ar9002_hw.c +++ b/drivers/net/wireless/ath/ath9k/ar9002_hw.c @@ -444,9 +444,8 @@ static void ar9002_hw_configpcipowersave(struct ath_hw *ah, } /* WAR for ASPM system hang */ - if (AR_SREV_9280(ah) || AR_SREV_9285(ah) || AR_SREV_9287(ah)) { + if (AR_SREV_9285(ah) || AR_SREV_9287(ah)) val |= (AR_WA_BIT6 | AR_WA_BIT7); - } if (AR_SREV_9285E_20(ah)) val |= AR_WA_BIT23; |