diff options
Diffstat (limited to 'include/linux/property.h')
| -rw-r--r-- | include/linux/property.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/include/linux/property.h b/include/linux/property.h index 9242fb0221ba..a6a3d98bd7e9 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -40,6 +40,46 @@ int device_property_read_string_array(struct device *dev, const char *propname, int device_property_read_string(struct device *dev, const char *propname, const char **val); +enum fwnode_type { + FWNODE_INVALID = 0, + FWNODE_OF, + FWNODE_ACPI, +}; + +struct fwnode_handle { + enum fwnode_type type; +}; + +bool fwnode_property_present(struct fwnode_handle *fwnode, const char *propname); +int fwnode_property_read_u8_array(struct fwnode_handle *fwnode, + const char *propname, u8 *val, + size_t nval); +int fwnode_property_read_u16_array(struct fwnode_handle *fwnode, + const char *propname, u16 *val, + size_t nval); +int fwnode_property_read_u32_array(struct fwnode_handle *fwnode, + const char *propname, u32 *val, + size_t nval); +int fwnode_property_read_u64_array(struct fwnode_handle *fwnode, + const char *propname, u64 *val, + size_t nval); +int fwnode_property_read_string_array(struct fwnode_handle *fwnode, + const char *propname, const char **val, + size_t nval); +int fwnode_property_read_string(struct fwnode_handle *fwnode, + const char *propname, const char **val); + +struct fwnode_handle *device_get_next_child_node(struct device *dev, + struct fwnode_handle *child); + +#define device_for_each_child_node(dev, child) \ + for (child = device_get_next_child_node(dev, NULL); child; \ + child = device_get_next_child_node(dev, child)) + +void fwnode_handle_put(struct fwnode_handle *fwnode); + +unsigned int device_get_child_node_count(struct device *dev); + static inline bool device_property_read_bool(struct device *dev, const char *propname) { @@ -70,4 +110,34 @@ static inline int device_property_read_u64(struct device *dev, return device_property_read_u64_array(dev, propname, val, 1); } +static inline bool fwnode_property_read_bool(struct fwnode_handle *fwnode, + const char *propname) +{ + return fwnode_property_present(fwnode, propname); +} + +static inline int fwnode_property_read_u8(struct fwnode_handle *fwnode, + const char *propname, u8 *val) +{ + return fwnode_property_read_u8_array(fwnode, propname, val, 1); +} + +static inline int fwnode_property_read_u16(struct fwnode_handle *fwnode, + const char *propname, u16 *val) +{ + return fwnode_property_read_u16_array(fwnode, propname, val, 1); +} + +static inline int fwnode_property_read_u32(struct fwnode_handle *fwnode, + const char *propname, u32 *val) +{ + return fwnode_property_read_u32_array(fwnode, propname, val, 1); +} + +static inline int fwnode_property_read_u64(struct fwnode_handle *fwnode, + const char *propname, u64 *val) +{ + return fwnode_property_read_u64_array(fwnode, propname, val, 1); +} + #endif /* _LINUX_PROPERTY_H_ */ |