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device property: Introduce fwnode_find_reference()

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In most cases the references that the drivers look for don't
have any arguments. This introduces a wrapper function for
fwnode_property_get_reference_args() that looks for
references by using only the name and index.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Heikki Krogerus
2019-05-31 17:15:39 +03:00
committed by Rafael J. Wysocki
parent ee48cef6c3
commit 83b34afb6b
2 changed files with 28 additions and 0 deletions
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4
include/linux/property.h
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@@ -79,6 +79,10 @@ int fwnode_property_get_reference_args(const struct fwnode_handle *fwnode,
unsigned int nargs, unsigned int index,
struct fwnode_reference_args *args);
struct fwnode_handle *fwnode_find_reference(const struct fwnode_handle *fwnode,
const char *name,
unsigned int index);
struct fwnode_handle *fwnode_get_parent(const struct fwnode_handle *fwnode);
struct fwnode_handle *fwnode_get_next_parent(
struct fwnode_handle *fwnode);