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    Subject[patch 061/176] ath9k_hw: Fix system hang when resuming from S3/S4
    2.6.36-stable review patch.  If anyone has any objections, please let us know.

    ------------------

    From: Rajkumar Manoharan <rmanoharan@atheros.com>

    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>

    ---
    drivers/net/wireless/ath/ath9k/ar9002_hw.c | 3 +--
    1 file changed, 1 insertion(+), 2 deletions(-)

    --- 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
    }

    /* 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;



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