ath9k_hw: Fix ASPM L1 issue for AR9480

Because of not clearing Bit 14 of AR_WA, the ASPM L1 is not
enabled when entering into sleep mode. AR9480 does not need
bit 14 to be set.

Cc: stable@kernel.org
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index fd7c207..58794a4 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -541,6 +541,9 @@ static int __ath9k_hw_init(struct ath_hw *ah)
                return -EIO;
        }
 
+       if (AR_SREV_9480(ah))
+               ah->WARegVal &= ~AR_WA_D3_L1_DISABLE;
+
        ath9k_hw_init_defaults(ah);
        ath9k_hw_init_config(ah);
 
@@ -1776,8 +1779,7 @@ static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip)
        }
 
        /* Clear Bit 14 of AR_WA after putting chip into Full Sleep mode. */
-       if (!AR_SREV_9480(ah))
-               REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
+       REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE);
 }
 
 /*