F_CHGSTM_STATE
ret = regmap_field_read(bd->rmap_fields[F_CHGSTM_STATE], &tmp);
bd->rmap_fields[F_CHGSTM_STATE], &state->chgstm_status,
[F_CHGSTM_STATE] = REG_FIELD(CHGSTM_STATUS, 0, 6),