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| author |  Saravana Kannan <saravanak@google.com>
| 2020-11-20 18:02:25 -0800 |
|---|---|---|
| committer |  Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| 2020-12-09 19:10:21 +0100 |
| commit | b5d3e2fbcb10957521af14c4256cd0e5f68b9234 (patch) | |
| tree | c40d818e24ef8da83ed6bd939ab2092d074967ed /include/linux/property.h | |
| parent | driver core: Allow only unprobed consumers for SYNC_STATE_ONLY device links (diff) | |
| download | linux-b5d3e2fbcb10957521af14c4256cd0e5f68b9234.tar.gz linux-b5d3e2fbcb10957521af14c4256cd0e5f68b9234.tar.bz2 linux-b5d3e2fbcb10957521af14c4256cd0e5f68b9234.zip | |
device property: Add fwnode_is_ancestor_of() and fwnode_get_next_parent_dev()
Add fwnode_is_ancestor_of() helper function to check if a fwnode is an
ancestor of another fwnode.
Add fwnode_get_next_parent_dev() helper function that take as input a
fwnode and finds the closest ancestor fwnode that has a corresponding
struct device and returns that struct device.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-11-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/property.h')
| -rw-r--r-- | include/linux/property.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/property.h b/include/linux/property.h index 2d4542629d80..0a9001fe7aea 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -85,9 +85,12 @@ const char *fwnode_get_name_prefix(const struct fwnode_handle *fwnode); struct fwnode_handle *fwnode_get_parent(const struct fwnode_handle *fwnode); struct fwnode_handle *fwnode_get_next_parent( struct fwnode_handle *fwnode); +struct device *fwnode_get_next_parent_dev(struct fwnode_handle *fwnode); unsigned int fwnode_count_parents(const struct fwnode_handle *fwn); struct fwnode_handle *fwnode_get_nth_parent(struct fwnode_handle *fwn, unsigned int depth); +bool fwnode_is_ancestor_of(struct fwnode_handle *test_ancestor, + struct fwnode_handle *test_child); struct fwnode_handle *fwnode_get_next_child_node( const struct fwnode_handle *fwnode, struct fwnode_handle *child); struct fwnode_handle *fwnode_get_next_available_child_node( |