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| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2015-09-14 17:37:35 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-09-25 02:00:19 +0200 |
| commit | 3f5c8d3187852b1cbed8546169e6293d6d421751 (patch) | |
| tree | 72bde461108542c7afb05753288a442c80d03e4c /include/linux/property.h | |
| parent | 504a33749971c36c54ba5ccb1364872dee1f17a7 (diff) | |
| download | lwn-3f5c8d3187852b1cbed8546169e6293d6d421751.tar.gz lwn-3f5c8d3187852b1cbed8546169e6293d6d421751.zip | |
device property: Add fwnode_property_match_string()
Sometimes it is useful to be able to extract an index of certain string
value from an array of strings. A typical use case is to give a name to a
DMA channel, PWM, clock and so on.
Provide an implementation using unified device property accessors that
follows of_property_match_string() but works for all supported fwnodes.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/linux/property.h')
| -rw-r--r-- | include/linux/property.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/property.h b/include/linux/property.h index a59c6ee566c2..463de52fe891 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -40,6 +40,8 @@ int device_property_read_string_array(struct device *dev, const char *propname, const char **val, size_t nval); int device_property_read_string(struct device *dev, const char *propname, const char **val); +int device_property_match_string(struct device *dev, + const char *propname, const char *string); bool fwnode_property_present(struct fwnode_handle *fwnode, const char *propname); int fwnode_property_read_u8_array(struct fwnode_handle *fwnode, @@ -59,6 +61,8 @@ int fwnode_property_read_string_array(struct fwnode_handle *fwnode, size_t nval); int fwnode_property_read_string(struct fwnode_handle *fwnode, const char *propname, const char **val); +int fwnode_property_match_string(struct fwnode_handle *fwnode, + const char *propname, const char *string); struct fwnode_handle *device_get_next_child_node(struct device *dev, struct fwnode_handle *child); |