ath9k_hw: Fix MCI init for AGC calibration

When AGC calibration is to be done, a GPM message with the
payload, MCI_GPM_WLAN_CAL_REQ has to be sent. Currently this falls
within the IQ-CAL code block which is incorrect. Fix this by using
a separate variable to decide when IQ-CAL is to be done separately
and call ar9003_mci_init_cal_req correctly.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
index 61caf1c..15f9b89 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
@@ -967,7 +967,7 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah,
        struct ath9k_hw_cal_data *caldata = ah->caldata;
        bool txiqcal_done = false, txclcal_done = false;
        bool is_reusable = true, status = true;
-       bool run_rtt_cal = false, run_agc_cal;
+       bool run_rtt_cal = false, run_agc_cal, sep_iq_cal = false;
        bool rtt = !!(ah->caps.hw_caps & ATH9K_HW_CAP_RTT);
        u32 agc_ctrl = 0, agc_supp_cals = AR_PHY_AGC_CONTROL_OFFSET_CAL |
                                          AR_PHY_AGC_CONTROL_FLTR_CAL   |
@@ -1034,19 +1034,22 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah,
                        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;
-               goto skip_tx_iqcal;
-       } else if (caldata && !caldata->done_txiqcal_once)
+       } else if (caldata && !caldata->done_txiqcal_once) {
                run_agc_cal = true;
+               sep_iq_cal = true;
+       }
 
+skip_tx_iqcal:
        if (ath9k_hw_mci_is_enabled(ah) && IS_CHAN_2GHZ(chan) && run_agc_cal)
                ar9003_mci_init_cal_req(ah, &is_reusable);
 
-       txiqcal_done = ar9003_hw_tx_iq_cal_run(ah);
-       REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
-       udelay(5);
-       REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
+       if (sep_iq_cal) {
+               txiqcal_done = ar9003_hw_tx_iq_cal_run(ah);
+               REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
+               udelay(5);
+               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,