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| author | Sujith Manoharan <Sujith.Manoharan@atheros.com> | 2011-01-04 13:16:54 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-01-10 15:40:51 -0500 |
| commit | 07422063d43612762d53fac8b6df213c96f4b1f6 (patch) | |
| tree | dce06b97c18e90e6d84278cd2172def89096c910 /drivers | |
| parent | 6cae913d6c06557fee81aa8a181eafcc9a76516a (diff) | |
| download | linux-stable-07422063d43612762d53fac8b6df213c96f4b1f6.tar.gz linux-stable-07422063d43612762d53fac8b6df213c96f4b1f6.tar.bz2 linux-stable-07422063d43612762d53fac8b6df213c96f4b1f6.zip | |
ath9k_hw: Fix calibration for AR9287 devices
AR9287 based devices have issues with ADC gain calibration
which would cause uplink throughput drops in HT40 mode.
Remove ADC gain from the supported calibration algorithms.
Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9002_calib.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9002_calib.c b/drivers/net/wireless/ath/ath9k/ar9002_calib.c index 01880aa13e36..ea2e7d714bda 100644 --- a/drivers/net/wireless/ath/ath9k/ar9002_calib.c +++ b/drivers/net/wireless/ath/ath9k/ar9002_calib.c @@ -954,6 +954,9 @@ static void ar9002_hw_init_cal_settings(struct ath_hw *ah) &adc_dc_cal_multi_sample; } ah->supp_cals = ADC_GAIN_CAL | ADC_DC_CAL | IQ_MISMATCH_CAL; + + if (AR_SREV_9287(ah)) + ah->supp_cals &= ~ADC_GAIN_CAL; } } |