5.4-stable review patch. If anyone has any objections, please let me know.
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From: Rob Herring robh@kernel.org
[ Upstream commit 9cbad37ce8122de32a1529e394b468bc101c9e7f ]
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 Stable-dep-of: 171eb6f71e9e ("ASoC: meson: meson-card-utils: use of_property_present() for DT parsing") Signed-off-by: Sasha Levin sashal@kernel.org --- include/linux/of.h | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/include/linux/of.h b/include/linux/of.h index ec6b8a1af73cf..728b9df20a521 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -1044,7 +1044,8 @@ static inline int of_property_read_string_index(const struct device_node *np, * @np: device node from which the property value is to be read. * @propname: name of the property to be searched. * - * Search for a property in a device node. + * Search for a boolean property in a device node. Usage on non-boolean + * property types is deprecated. * * Return: true if the property exists false otherwise. */ @@ -1056,6 +1057,20 @@ static inline bool of_property_read_bool(const struct device_node *np, return prop ? true : false; }
+/** + * of_property_present - Test if a property is present in a node + * @np: device node to search for the property. + * @propname: name of the property to be searched. + * + * Test for a property present in a device node. + * + * Return: true if the property exists false otherwise. + */ +static inline bool of_property_present(const struct device_node *np, const char *propname) +{ + return of_property_read_bool(np, propname); +} + /** * of_property_read_u8_array - Find and read an array of u8 from a property. *