Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
of: Add of_property_present() helper
Add an of_property_present() function similar to
fwnode_property_present(). of_property_read_bool() could be used
directly, but it is cleaner to not use it on non-boolean properties.
Reviewed-by: Frank Rowand <frowand.list@gmail.com>
Tested-by: Frank Rowand <frowand.list@gmail.com>
Link: https://lore.kernel.org/all/20230215215547.691573-1-robh@kernel.org/
Signed-off-by: Rob Herring <robh@kernel.org>
+16
-1
+16
-1
include/linux/of.h
+16
-1
include/linux/of.h
···
1155
1155
* @np: device node from which the property value is to be read.
1156
1156
* @propname: name of the property to be searched.
1157
1157
*
1158
-
* Search for a property in a device node.
1158
+
* Search for a boolean property in a device node. Usage on non-boolean
1159
+
* property types is deprecated.
1159
1160
*
1160
1161
* Return: true if the property exists false otherwise.
1161
1162
*/
···
1166
1165
struct property *prop = of_find_property(np, propname, NULL);
1167
1166
1168
1167
return prop ? true : false;
1168
+
}
1169
+
1170
+
/**
1171
+
* of_property_present - Test if a property is present in a node
1172
+
* @np: device node to search for the property.
1173
+
* @propname: name of the property to be searched.
1174
+
*
1175
+
* Test for a property present in a device node.
1176
+
*
1177
+
* Return: true if the property exists false otherwise.
1178
+
*/
1179
+
static inline bool of_property_present(const struct device_node *np, const char *propname)
1180
+
{
1181
+
return of_property_read_bool(np, propname);
1169
1182
}
1170
1183
1171
1184
/**