diff options
| -rw-r--r-- | drivers/core/uclass.c | 21 | ||||
| -rw-r--r-- | include/dm/uclass-internal.h | 11 |
2 files changed, 32 insertions, 0 deletions
diff --git a/drivers/core/uclass.c b/drivers/core/uclass.c index d609b170e1..3113d6a56b 100644 --- a/drivers/core/uclass.c +++ b/drivers/core/uclass.c @@ -171,6 +171,27 @@ enum uclass_id uclass_get_by_name(const char *name) return UCLASS_INVALID; } +int dev_get_uclass_index(struct udevice *dev, struct uclass **ucp) +{ + struct udevice *iter; + struct uclass *uc = dev->uclass; + int i = 0; + + if (list_empty(&uc->dev_head)) + return -ENODEV; + + list_for_each_entry(iter, &uc->dev_head, uclass_node) { + if (iter == dev) { + if (ucp) + *ucp = uc; + return i; + } + i++; + } + + return -ENODEV; +} + int uclass_find_device(enum uclass_id id, int index, struct udevice **devp) { struct uclass *uc; diff --git a/include/dm/uclass-internal.h b/include/dm/uclass-internal.h index 7ba064bd53..30d5a4fb9b 100644 --- a/include/dm/uclass-internal.h +++ b/include/dm/uclass-internal.h @@ -24,6 +24,17 @@ int uclass_get_device_tail(struct udevice *dev, int ret, struct udevice **devp); /** + * dev_get_uclass_index() - Get uclass and index of device + * @dev: - in - Device that we want the uclass/index of + * @ucp: - out - A pointer to the uclass the device belongs to + * + * The device is not prepared for use - this is an internal function. + * + * @return the index of the device in the uclass list or -ENODEV if not found. + */ +int dev_get_uclass_index(struct udevice *dev, struct uclass **ucp); + +/** * uclass_find_device() - Return n-th child of uclass * @id: Id number of the uclass * @index: Position of the child in uclass's list |