From f6abd5389ceab5fce185126c2364a324465fafbe Mon Sep 17 00:00:00 2001 From: Patrice Chotard Date: Wed, 24 Oct 2018 14:10:15 +0200 Subject: dm: uclass: Add uclass_next_device_err() to return a valid device Similarly to uclass_first_device_err(), add uclass_next_device_err() which returns an error if there are no next devices in that uclass. Signed-off-by: Patrice Chotard Reviewed-by: Simon Glass --- include/dm/uclass.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include') diff --git a/include/dm/uclass.h b/include/dm/uclass.h index 4ef0d0f0c01..93f761c96eb 100644 --- a/include/dm/uclass.h +++ b/include/dm/uclass.h @@ -307,6 +307,18 @@ int uclass_first_device_err(enum uclass_id id, struct udevice **devp); */ int uclass_next_device(struct udevice **devp); +/** + * uclass_next_device_err() - Get the next device in a uclass + * + * The device returned is probed if necessary, and ready for use + * + * @devp: On entry, pointer to device to lookup. On exit, returns pointer + * to the next device in the uclass if no error occurred, or -ENODEV if + * there is no next device. + * @return 0 if found, -ENODEV if not found, other -ve on error + */ +int uclass_next_device_err(struct udevice **devp); + /** * uclass_first_device_check() - Get the first device in a uclass * -- cgit v1.3.1