xlate_reg_prop
static int xlate_reg_prop(dev_info_t *dip, upa64s_regspec_t *upa64s_rp,
rval = xlate_reg_prop(dip, (upa64s_regspec_t *)mp->map_obj.rp,
rval = xlate_reg_prop(dip, &upa64s_rp[rnumber], off, len, rp);