SC16IS7XX_RHR_REG
regmap_noinc_read(one->regmap, SC16IS7XX_RHR_REG, rxbuf, rxlen);
case SC16IS7XX_RHR_REG: /* Shared address space with THR & DLL */
case SC16IS7XX_RHR_REG:
return reg == SC16IS7XX_RHR_REG;
one->buf[0] = sc16is7xx_port_read(port, SC16IS7XX_RHR_REG);