ASoC: wm2000: Add register readability information

#define wm2000_resume NULL

#endif

static bool wm2000_readable_reg(struct device *dev, unsigned int reg)

{

	switch (reg) {

	case WM2000_REG_SYS_START:

	case WM2000_REG_SPEECH_CLARITY:

	case WM2000_REG_SYS_WATCHDOG:

	case WM2000_REG_ANA_VMID_PD_TIME:

	case WM2000_REG_ANA_VMID_PU_TIME:

	case WM2000_REG_CAT_FLTR_INDX:

	case WM2000_REG_CAT_GAIN_0:

	case WM2000_REG_SYS_STATUS:

	case WM2000_REG_SYS_MODE_CNTRL:

	case WM2000_REG_SYS_START0:

	case WM2000_REG_SYS_START1:

	case WM2000_REG_ID1:

	case WM2000_REG_ID2:

	case WM2000_REG_REVISON:

	case WM2000_REG_SYS_CTL1:

	case WM2000_REG_SYS_CTL2:

	case WM2000_REG_ANC_STAT:

	case WM2000_REG_IF_CTL:

		return true;

	default:

		return false;

	}

}

static const struct regmap_config wm2000_regmap = {

	.reg_bits = 8,

	.val_bits = 8,

	.max_register = WM2000_REG_IF_CTL,

	.readable_reg = wm2000_readable_reg,

};

static int wm2000_probe(struct snd_soc_codec *codec)