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| author | Rajkumar Manoharan <rmanoharan@atheros.com> | 2011-01-27 18:39:37 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-01-28 15:27:20 -0500 |
| commit | 5b64aa72ead6f8be488d2be7af579f0d69fb7a6e (patch) | |
| tree | 8747283a9bf88115ebeb15734379e8d977ec5843 | |
| parent | a29091ecb40ec413f877cdd81f1bb5485b9d2ac9 (diff) | |
| download | linux-5b64aa72ead6f8be488d2be7af579f0d69fb7a6e.tar.gz linux-5b64aa72ead6f8be488d2be7af579f0d69fb7a6e.tar.bz2 linux-5b64aa72ead6f8be488d2be7af579f0d69fb7a6e.zip | |
ath9k_hw: Fix system hang when resuming from S3/S4
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: stable@kernel.org
Cc: Jack Lee <jlee@atheros.com>
Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -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 f8a7771faee2..f44c84ab5dce 100644 --- a/drivers/net/wireless/ath/ath9k/ar9002_hw.c +++ b/drivers/net/wireless/ath/ath9k/ar9002_hw.c @@ -426,9 +426,8 @@ 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; |