diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/dm/uclass.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/dm/uclass.h b/include/dm/uclass.h index 484d166013..74b8e2ecb5 100644 --- a/include/dm/uclass.h +++ b/include/dm/uclass.h @@ -366,6 +366,23 @@ int uclass_next_device_check(struct udevice **devp); int uclass_resolve_seq(struct udevice *dev); /** + * uclass_id_foreach_dev() - Helper function to iteration through devices + * + * This creates a for() loop which works through the available devices in + * a uclass ID in order from start to end. + * + * If for some reason the uclass cannot be found, this does nothing. + * + * @id: enum uclass_id ID to use + * @pos: struct udevice * to hold the current device. Set to NULL when there + * are no more devices. + * @uc: temporary uclass variable (struct udevice *) + */ +#define uclass_id_foreach_dev(id, pos, uc) \ + if (!uclass_get(id, &uc)) \ + list_for_each_entry(pos, &uc->dev_head, uclass_node) + +/** * uclass_foreach_dev() - Helper function to iteration through devices * * This creates a for() loop which works through the available devices in |