DL_GAIN_N_22DB
return (reg_idx >= DL_GAIN_8DB && reg_idx <= DL_GAIN_N_22DB) ||
DL_GAIN_N_22DB,
DL_GAIN_N_22DB);
#define DL_GAIN_N_22DB_REG (DL_GAIN_N_22DB << 7 | DL_GAIN_N_22DB)