mfd: syscon: Support native-endian regmaps

The regmap devicetree binding documentation states that a native-endian
property should be supported as well as big-endian & little-endian,
however syscon in its duplication of the parsing of these properties
omits support for native-endian. Fix this by setting
REGMAP_ENDIAN_NATIVE when a native-endian property is found.

Signed-off-by: Paul Burton <[email protected]>
Cc: Lee Jones <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Guenter Roeck <[email protected]>
Cc: Ralf Baechle <[email protected]>
Cc: [email protected]
Signed-off-by: Lee Jones <[email protected]>

Author: paulburton

drivers/mfd/syscon.c

@@ -73,8 +73,10 @@ static struct syscon *of_syscon_register(struct device_node *np)
 	/* Parse the device's DT node for an endianness specification */
 	if (of_property_read_bool(np, "big-endian"))
 		syscon_config.val_format_endian = REGMAP_ENDIAN_BIG;
-	 else if (of_property_read_bool(np, "little-endian"))
+	else if (of_property_read_bool(np, "little-endian"))
 		syscon_config.val_format_endian = REGMAP_ENDIAN_LITTLE;
+	else if (of_property_read_bool(np, "native-endian"))
+		syscon_config.val_format_endian = REGMAP_ENDIAN_NATIVE;
 
 	/*
 	 * search for reg-io-width property in DT. If it is not provided,