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authorSujith Manoharan <c_manoha@qca.qualcomm.com>2015-01-28 07:24:26 -0500
committerKalle Valo <kvalo@codeaurora.org>2015-01-29 03:33:25 -0500
commitcfbed87b304a517af27c22a7caf2cb345cb063f9 (patch)
tree1664344ae9033b6d2decf3eec7d4d20f4d96e30d /drivers/net/wireless
parente4e292f3c7df753926ecb411788057e15154189e (diff)
ath9k: Enable manual peak detect calibration
On some AR955x/QCA953x boards, noise floor calibration gets stuck and the cause is a hardware/BB issue. To fix this, peak detect calibration in the HW is disabled and is done in the driver instead. There a few differences with the calibration routine for older chips like AR9331. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/ath/ath9k/ar9003_calib.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
index 91130c0e31d3..174442beb952 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
@@ -1640,8 +1640,14 @@ static bool ar9003_hw_init_cal_soc(struct ath_hw *ah,
1640 1640
1641skip_tx_iqcal: 1641skip_tx_iqcal:
1642 if (run_agc_cal || !(ah->ah_flags & AH_FASTCC)) { 1642 if (run_agc_cal || !(ah->ah_flags & AH_FASTCC)) {
1643 if (AR_SREV_9330_11(ah)) 1643 if (AR_SREV_9330_11(ah) || AR_SREV_9531(ah) || AR_SREV_9550(ah)) {
1644 ar9003_hw_manual_peak_cal(ah, 0, IS_CHAN_2GHZ(chan)); 1644 for (i = 0; i < AR9300_MAX_CHAINS; i++) {
1645 if (!(ah->rxchainmask & (1 << i)))
1646 continue;
1647 ar9003_hw_manual_peak_cal(ah, i,
1648 IS_CHAN_2GHZ(chan));
1649 }
1650 }
1645 1651
1646 /* 1652 /*
1647 * For non-AR9550 chips, we just trigger AGC calibration 1653 * For non-AR9550 chips, we just trigger AGC calibration