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 14:46:54 -0800 |
| commit | 886de5fc897f329a74c59b0787030e4e114e22e3 (patch) | |
| tree | 3703891cc2682b22f1395c367e317d111d92a83b /drivers/net | |
| parent | f38ad0651d4a85b52e5f61816a4f95d6697bf531 (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>
Diffstat (limited to 'drivers/net')
| -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 cb90aa8bbab..ab1c50b8326 100644 --- a/drivers/net/wireless/ath/ath9k/ar9002_hw.c +++ b/drivers/net/wireless/ath/ath9k/ar9002_hw.c @@ -445,9 +445,8 @@ 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; |