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authorMika Westerberg <mika.westerberg@linux.intel.com>2015-09-14 17:37:35 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-09-25 03:00:19 +0300
commit3f5c8d3187852b1cbed8546169e6293d6d421751 (patch)
tree72bde461108542c7afb05753288a442c80d03e4c /include/linux/property.h
parent504a33749971c36c54ba5ccb1364872dee1f17a7 (diff)
downloadlinux-3f5c8d3187852b1cbed8546169e6293d6d421751.tar.xz
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.h4
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);