LPC3XXX_REG_I2S_RX_RATE
regmap_write(regs, LPC3XXX_REG_I2S_RX_RATE, 0);
regmap_write(regs, LPC3XXX_REG_I2S_RX_RATE, (clkx << 8) | clky);
.max_register = LPC3XXX_REG_I2S_RX_RATE,