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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 <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rajkumar Manoharan 2012-10-15 15:29:51 +05:30 committed by John W. Linville
parent 2097fdd7eb
commit 6f37ff96d3
1 changed files with 5 additions and 0 deletions
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5
drivers/net/wireless/ath/ath9k/ar9003_calib.c
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@ -276,6 +276,11 @@ static void ar9003_hw_iqcalibrate(struct ath_hw *ah, u8 numChains)
offset_array[i], offset_array[i],
REG_READ(ah, 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], REG_RMW_FIELD(ah, offset_array[i],
AR_PHY_RX_IQCAL_CORR_IQCORR_Q_I_COFF, AR_PHY_RX_IQCAL_CORR_IQCORR_Q_I_COFF,
iCoff); iCoff);