ASoC: rt5645: Add the register RT5645_CHARGE_PUMP to readable check function

Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/rt5645.c

@@ -394,6 +394,7 @@ static bool rt5645_readable_register(struct device *dev, unsigned int reg)
 	case RT5645_DEPOP_M1:
 	case RT5645_DEPOP_M2:
 	case RT5645_DEPOP_M3:
+	case RT5645_CHARGE_PUMP:
 	case RT5645_MICBIAS:
 	case RT5645_A_JD_CTRL1:
 	case RT5645_VAD_CTRL4: