+static bool wlc_lcnphy_rx_iq_cal_gain(struct brcms_phy *pi, u16 biq1_gain,
+ u16 tia_gain, u16 lna2_gain)
+{
+ u32 i_thresh_l, q_thresh_l;
+ u32 i_thresh_h, q_thresh_h;
+ struct lcnphy_iq_est iq_est_h, iq_est_l;
+
+ wlc_lcnphy_set_rx_gain_by_distribution(pi, 0, 0, 0, biq1_gain, tia_gain,
+ lna2_gain, 0);
+
+ wlc_lcnphy_rx_gain_override_enable(pi, true);
+ wlc_lcnphy_start_tx_tone(pi, 2000, (40 >> 1), 0);
+ udelay(500);
+ write_radio_reg(pi, RADIO_2064_REG112, 0);
+ if (!wlc_lcnphy_rx_iq_est(pi, 1024, 32, &iq_est_l))
+ return false;
+
+ wlc_lcnphy_start_tx_tone(pi, 2000, 40, 0);
+ udelay(500);
+ write_radio_reg(pi, RADIO_2064_REG112, 0);
+ if (!wlc_lcnphy_rx_iq_est(pi, 1024, 32, &iq_est_h))
+ return false;
+
+ i_thresh_l = (iq_est_l.i_pwr << 1);
+ i_thresh_h = (iq_est_l.i_pwr << 2) + iq_est_l.i_pwr;
+
+ q_thresh_l = (iq_est_l.q_pwr << 1);
+ q_thresh_h = (iq_est_l.q_pwr << 2) + iq_est_l.q_pwr;
+ if ((iq_est_h.i_pwr > i_thresh_l) &&
+ (iq_est_h.i_pwr < i_thresh_h) &&
+ (iq_est_h.q_pwr > q_thresh_l) &&
+ (iq_est_h.q_pwr < q_thresh_h))
+ return true;
+
+ return false;
+}
+