[PATCH 07/30] dm: core: Skip adding uclasses with OF_PLATDATA_INST

There is no need to ever add new uclasses since these are set up at build time. Update the code to return an error if this is attempted.

Signed-off-by: Simon Glass sjg@chromium.org ---

drivers/core/uclass.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/core/uclass.c b/drivers/core/uclass.c index cdb975d5b31..3a13b82b922 100644 --- a/drivers/core/uclass.c +++ b/drivers/core/uclass.c @@ -147,8 +147,11 @@ int uclass_get(enum uclass_id id, struct uclass **ucp)

*ucp = NULL; uc = uclass_find(id); - if (!uc) + if (!uc) { + if (CONFIG_IS_ENABLED(OF_PLATDATA_INST)) + return -ENOENT; return uclass_add(id, ucp); + } *ucp = uc;

return 0;