From f28c785f37a977cfd5879f4bfec99838053373f8 Mon Sep 17 00:00:00 2001 From: Sujith Manoharan Date: Fri, 15 Nov 2013 14:49:32 +0530 Subject: [PATCH] ath9k: Fix TX IQ calibration for SoC chips Since calibration data reuse is not enabled in SoC chips, simplify the IQ calibration code. Signed-off-by: Sujith Manoharan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ar9003_calib.c | 20 ++++++++------------ 1 file changed, 8 insertions(+), 12 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c index 58eacf1..a18c3dd 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c @@ -1255,22 +1255,19 @@ static bool ar9003_hw_init_cal_soc(struct ath_hw *ah, /* * For AR9485 or later chips, TxIQ cal runs as part of - * AGC calibration + * AGC calibration. Specifically, AR9550 in SoC chips. */ if (ah->enabled_cals & TX_IQ_ON_AGC_CAL) { - if (caldata && !test_bit(TXIQCAL_DONE, &caldata->cal_flags)) - REG_SET_BIT(ah, AR_PHY_TX_IQCAL_CONTROL_0, - AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL); - else - REG_CLR_BIT(ah, AR_PHY_TX_IQCAL_CONTROL_0, - AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL); - txiqcal_done = run_agc_cal = true; - } else if (caldata && !test_bit(TXIQCAL_DONE, &caldata->cal_flags)) { + txiqcal_done = true; run_agc_cal = true; + } else { sep_iq_cal = true; + run_agc_cal = true; } -skip_tx_iqcal: + /* + * In the SoC family, this will run for AR9300, AR9331 and AR9340. + */ if (sep_iq_cal) { txiqcal_done = ar9003_hw_tx_iq_cal_run(ah); REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS); @@ -1278,6 +1275,7 @@ skip_tx_iqcal: REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN); } +skip_tx_iqcal: if (run_agc_cal || !(ah->ah_flags & AH_FASTCC)) { /* Calibrate the AGC */ REG_WRITE(ah, AR_PHY_AGC_CONTROL, @@ -1299,8 +1297,6 @@ skip_tx_iqcal: if (txiqcal_done) ar9003_hw_tx_iq_cal_post_proc(ah, is_reusable); - else if (caldata && test_bit(TXIQCAL_DONE, &caldata->cal_flags)) - ar9003_hw_tx_iq_cal_reload(ah); /* Revert chainmask to runtime parameters */ ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask); -- 2.7.4