diff options
| author | Senthil Balasubramanian <senthilkumar@atheros.com> | 2010-11-11 00:40:33 -0800 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-11-16 16:37:05 -0500 |
| commit | a9d85fbd3e5f7a0679e6276953cd23ac7bb72789 (patch) | |
| tree | 4e7ba4d50219a8a493ff509b596f28a2581db0df /drivers/net/wireless/ath/ath9k/ar9003_calib.c | |
| parent | 72a801103f07182c0a4f3a761caa62b4ab8eb4e5 (diff) | |
| download | linux-a9d85fbd3e5f7a0679e6276953cd23ac7bb72789.tar.gz linux-a9d85fbd3e5f7a0679e6276953cd23ac7bb72789.tar.bz2 linux-a9d85fbd3e5f7a0679e6276953cd23ac7bb72789.zip | |
ath9k_hw: Fix a reset failure on AR9382 (2x2).
AR9382 needs to be configured for the correct chain mask before
running AGC/TxIQ caliberation. Otherwise reset would fail.
Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ar9003_calib.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9003_calib.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c index 9e6edffe0bd1..32eed19ff6f9 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c @@ -718,12 +718,19 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah, struct ath9k_channel *chan) { struct ath_common *common = ath9k_hw_common(ah); + int val; - /* - * 0x7 = 0b111 , AR9003 needs to be configured for 3-chain mode before - * running AGC/TxIQ cals - */ - ar9003_hw_set_chain_masks(ah, 0x7, 0x7); + val = REG_READ(ah, AR_ENT_OTP); + ath_print(common, ATH_DBG_CALIBRATE, "ath9k: AR_ENT_OTP 0x%x\n", val); + + if (val & AR_ENT_OTP_CHAIN2_DISABLE) + ar9003_hw_set_chain_masks(ah, 0x3, 0x3); + else + /* + * 0x7 = 0b111 , AR9003 needs to be configured for 3-chain + * mode before running AGC/TxIQ cals + */ + ar9003_hw_set_chain_masks(ah, 0x7, 0x7); /* Do Tx IQ Calibration */ ar9003_hw_tx_iq_cal(ah); |