From: Rajkumar Manoharan Date: Mon, 15 Oct 2012 09:59:51 +0000 (+0530) Subject: ath9k_hw: Fix max rx rate drop for AR9565 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6f37ff96d3bd2a53e68131a7c10ced933815b390;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git ath9k_hw: Fix max rx rate drop for AR9565 Whenever i_coff of IQ calibration is too high, AR9565 drops max rx rate to MCS4. Skipping IQ update at this time can avoid this problem for AR9565. Signed-off-by: Rajkumar Manoharan Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c index 84b558d126ca..162401f22f8c 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c @@ -276,6 +276,11 @@ static void ar9003_hw_iqcalibrate(struct ath_hw *ah, u8 numChains) offset_array[i], REG_READ(ah, offset_array[i])); + if (AR_SREV_9565(ah) && + (iCoff == 63 || qCoff == 63 || + iCoff == -63 || qCoff == -63)) + return; + REG_RMW_FIELD(ah, offset_array[i], AR_PHY_RX_IQCAL_CORR_IQCORR_Q_I_COFF, iCoff);