+#define RT5645_MICBIAS1_POW_CTRL_SEL_MASK (0x1 << 5)
+#define RT5645_MICBIAS1_POW_CTRL_SEL_A (0x0 << 5)
+#define RT5645_MICBIAS1_POW_CTRL_SEL_M (0x1 << 5)
+#define RT5645_MICBIAS2_POW_CTRL_SEL_MASK (0x1 << 4)
+#define RT5645_MICBIAS2_POW_CTRL_SEL_A (0x0 << 4)
+#define RT5645_MICBIAS2_POW_CTRL_SEL_M (0x1 << 4)