ath9k_hw: fix spur mitigation issues on AR934x
authorFelix Fietkau <nbd@openwrt.org>
Thu, 23 May 2013 10:20:54 +0000 (12:20 +0200)
committerJohn W. Linville <linville@tuxdriver.com>
Fri, 24 May 2013 16:50:21 +0000 (12:50 -0400)
Do not subtract spur power from noise floor on this chip, as it can lead
to packet loss and other connectivity issues.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
drivers/net/wireless/ath/ath9k/ar9003_phy.c

index 2bf6548..e1714d7 100644 (file)
@@ -334,7 +334,8 @@ static void ar9003_hw_spur_ofdm(struct ath_hw *ah,
        REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
                      AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 1);
 
-       if (REG_READ_FIELD(ah, AR_PHY_MODE,
+       if (!AR_SREV_9340(ah) &&
+           REG_READ_FIELD(ah, AR_PHY_MODE,
                           AR_PHY_MODE_DYNAMIC) == 0x1)
                REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
                              AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 1);