endian = REGMAP_ENDIAN_BIG;
else if (of_property_read_bool(np, "little-endian"))
endian = REGMAP_ENDIAN_LITTLE;
+ else if (of_property_read_bool(np, "native-endian"))
+ endian = REGMAP_ENDIAN_NATIVE;
/* If the endianness was specified in DT, use that */
if (endian != REGMAP_ENDIAN_DEFAULT)
WARN_ON(!map->bus);
+ if (!map->bus || !map->bus->read)
+ return -EINVAL;
+
range = _regmap_range_lookup(map, reg);
if (range) {
ret = _regmap_select_page(map, ®, range,