diff options
| author | Sujith Manoharan <c_manoha@qca.qualcomm.com> | 2013-09-16 05:06:59 (GMT) |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2013-09-26 19:13:49 (GMT) |
| commit | 8a5b7ab36b46615874da3764b99c9d26c1e6750d (patch) | |
| tree | 979e4c9ba45032c31fafcec614c90250baaa1d11 | |
| parent | 5952bd806c95f53b6412918c76d4f95d6ebc125e (diff) | |
| download | linux-8a5b7ab36b46615874da3764b99c9d26c1e6750d.tar.xz | |
ath9k: Fix NF calibration for single stream cards
Rather than using the chip ID to read only chain-0 CCA
registers and avoid reading chain-1, use the RX chainmask
instead. There are some 1-stream PCI devices based on AR9287
such as TL-WN751ND. Improper NF calibration might result in
DMA errors/timeouts.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9002_phy.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9002_phy.c b/drivers/net/wireless/ath/ath9k/ar9002_phy.c index 7a5569b..17970d4 100644 --- a/drivers/net/wireless/ath/ath9k/ar9002_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9002_phy.c @@ -485,7 +485,7 @@ static void ar9002_hw_do_getnf(struct ath_hw *ah, if (IS_CHAN_HT40(ah->curchan)) nfarray[3] = sign_extend32(nf, 8); - if (AR_SREV_9285(ah) || AR_SREV_9271(ah)) + if (!(ah->rxchainmask & BIT(1))) return; nf = MS(REG_READ(ah, AR_PHY_CH1_CCA), AR9280_PHY_CH1_MINCCA_PWR); |