mxl862xx_reg_write
ret = mxl862xx_reg_write(priv, MXL862XX_MMD_REG_LEN_RET, len_enc);
ret = mxl862xx_reg_write(priv, MXL862XX_MMD_REG_CTRL, ctrl_enc);
ret = mxl862xx_reg_write(priv,
ret = mxl862xx_reg_write(priv, MXL862XX_MMD_REG_LEN_RET, 0);
ret = mxl862xx_reg_write(priv, MXL862XX_MMD_REG_CTRL, MXL862XX_SWITCH_RESET);