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dm: core: Export uclass_find_device_by_phandle()

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This function may be useful to code outside of the code driver-model
implementation. Export it and add a test.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2018-11-18 08:14:30 -07:00
parent 499fde5c23
commit d0b4f68d19
3 changed files with 39 additions and 4 deletions
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17
include/dm/uclass-internal.h
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@ -142,6 +142,23 @@ int uclass_find_device_by_of_offset(enum uclass_id id, int node,
int uclass_find_device_by_ofnode(enum uclass_id id, ofnode node,
struct udevice **devp);
/**
* uclass_find_device_by_phandle() - Find a uclass device by phandle
*
* This searches the devices in the uclass for one with the given phandle.
*
* The device is NOT probed, it is merely returned.
*
* @id: ID to look up
* @parent: Parent device containing the phandle pointer
* @name: Name of property in the parent device node
* @devp: Returns pointer to device (there is only one for each node)
* @return 0 if OK, -ENOENT if there is no @name present in the node, other
* -ve on error
*/
int uclass_find_device_by_phandle(enum uclass_id id, struct udevice *parent,
const char *name, struct udevice **devp);
/**
* uclass_bind_device() - Associate device with a uclass
*