diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/dt-bindings/gpio/gpio.h | 2 | ||||
| -rw-r--r-- | include/linux/of.h | 30 |
2 files changed, 29 insertions, 3 deletions
diff --git a/include/dt-bindings/gpio/gpio.h b/include/dt-bindings/gpio/gpio.h index 5566e58196a2..b5d531237448 100644 --- a/include/dt-bindings/gpio/gpio.h +++ b/include/dt-bindings/gpio/gpio.h @@ -1,4 +1,4 @@ -/* SPDX-License-Identifier: GPL-2.0 */ +/* SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) */ /* * This header provides constants for most GPIO bindings. * diff --git a/include/linux/of.h b/include/linux/of.h index 98c252d2d851..0af611307db2 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -100,8 +100,19 @@ struct of_reconfig_data { struct property *old_prop; }; +/** + * of_node_init - initialize a devicetree node + * @node: Pointer to device node that has been created by kzalloc() + * @phandle_name: Name of property holding a phandle value + * + * On return the device_node refcount is set to one. Use of_node_put() + * on @node when done to free the memory allocated for it. If the node + * is NOT a dynamic node the memory will not be freed. The decision of + * whether to free the memory will be done by node->release(), which is + * of_node_release(). + */ /* initialize a node */ -extern struct kobj_type of_node_ktype; +extern const struct kobj_type of_node_ktype; extern const struct fwnode_operations of_fwnode_ops; static inline void of_node_init(struct device_node *node) { @@ -1180,7 +1191,8 @@ 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. */ @@ -1193,6 +1205,20 @@ static inline bool of_property_read_bool(const struct device_node *np, } /** + * 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. * * @np: device node from which the property value is to be read. |