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| author | Simon Glass <sjg@chromium.org> | 2016-01-21 19:43:57 -0700 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2016-01-21 20:42:35 -0700 |
| commit | 1b30d61d786421a5d02725a9945552cc9c09914b (patch) | |
| tree | 7966d4351125613caf50d2f5417c5882818cda1f /include/dm | |
| parent | 77eaa19e73f0c6b4c29982417676ab23cd72895a (diff) | |
| download | u-boot-1b30d61d786421a5d02725a9945552cc9c09914b.tar.gz u-boot-1b30d61d786421a5d02725a9945552cc9c09914b.tar.bz2 u-boot-1b30d61d786421a5d02725a9945552cc9c09914b.zip | |
dm: core: Export uclass_find_device_by_of_offset()
It is sometimes useful to be able to find a device before probing it,
perhaps to set up some platform data for it. Allow finding by of_offset
also.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/dm')
| -rw-r--r-- | include/dm/uclass-internal.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/dm/uclass-internal.h b/include/dm/uclass-internal.h index b51e1da5c1..ad284b8445 100644 --- a/include/dm/uclass-internal.h +++ b/include/dm/uclass-internal.h @@ -99,6 +99,22 @@ int uclass_find_device_by_seq(enum uclass_id id, int seq_or_req_seq, bool find_req_seq, struct udevice **devp); /** + * uclass_find_device_by_of_offset() - Find a uclass device by device tree node + * + * This searches the devices in the uclass for one attached to the given + * device tree node. + * + * The device is NOT probed, it is merely returned. + * + * @id: ID to look up + * @node: Device tree offset to search for (if -ve then -ENODEV is returned) + * @devp: Returns pointer to device (there is only one for each node) + * @return 0 if OK, -ve on error + */ +int uclass_find_device_by_of_offset(enum uclass_id id, int node, + struct udevice **devp); + +/** * uclass_bind_device() - Associate device with a uclass * * Connect the device into uclass's list of devices. |