R92C_BCN_CTRL1
iq_cal_regs->bcn_ctrl1 = rtwn_read_1(sc, R92C_BCN_CTRL1);
rtwn_write_1(sc, R92C_BCN_CTRL1,
rtwn_write_1(sc, R92C_BCN_CTRL1, iq_cal_regs->bcn_ctrl1);