diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/core/device.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/core/device.c b/drivers/core/device.c index 32e80e82b59..9538874017a 100644 --- a/drivers/core/device.c +++ b/drivers/core/device.c @@ -514,3 +514,30 @@ int device_get_child_by_of_offset(struct udevice *parent, int seq, ret = device_find_child_by_of_offset(parent, seq, &dev); return device_get_device_tail(dev, ret, devp); } + +int device_find_first_child(struct udevice *parent, struct udevice **devp) +{ + if (list_empty(&parent->child_head)) { + *devp = NULL; + } else { + *devp = list_first_entry(&parent->child_head, struct udevice, + sibling_node); + } + + return 0; +} + +int device_find_next_child(struct udevice **devp) +{ + struct udevice *dev = *devp; + struct udevice *parent = dev->parent; + + if (list_is_last(&dev->sibling_node, &parent->child_head)) { + *devp = NULL; + } else { + *devp = list_entry(dev->sibling_node.next, struct udevice, + sibling_node); + } + + return 0; +} |