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[6/6] ath9k: Enable manual peak detect calibration

Message ID 1421633598-4488-7-git-send-email-sujith@msujith.org (mailing list archive)
State Superseded
Delegated to: Kalle Valo
Headers show

Commit Message

Sujith Manoharan Jan. 19, 2015, 2:13 a.m. UTC 
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>

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>
---
 drivers/net/wireless/ath/ath9k/ar9003_calib.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
index 91130c0..174442b 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,
 
 skip_tx_iqcal:
 	if (run_agc_cal || !(ah->ah_flags & AH_FASTCC)) {
-		if (AR_SREV_9330_11(ah))
-			ar9003_hw_manual_peak_cal(ah, 0, IS_CHAN_2GHZ(chan));
+		if (AR_SREV_9330_11(ah) || AR_SREV_9531(ah) || AR_SREV_9550(ah)) {
+			for (i = 0; i < AR9300_MAX_CHAINS; i++) {
+				if (!(ah->rxchainmask & (1 << i)))
+					continue;
+				ar9003_hw_manual_peak_cal(ah, i,
+							  IS_CHAN_2GHZ(chan));
+			}
+		}
 
 		/*
 		 * For non-AR9550 chips, we just trigger AGC calibration