RK3308_ADC_DIG_VOL_CON_x_SFT
#define RK3308_ADC_DIG_VOL_CON_x_MSK (0xff << RK3308_ADC_DIG_VOL_CON_x_SFT)
#define RK3308_ADC_DIG_VOL_CON_x_0DB (0xc2 << RK3308_ADC_DIG_VOL_CON_x_SFT)