[PATCH v3 08/42] dm: core: Skip adding uclasses with OF_PLATDATA_INST

[Simon Glass]

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 <s...@chromium.org>
---

(no changes since v1)

 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 f38122d54b5..2a7b0881b18 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;
-- 
2.30.0.478.g8a0d178c01-goog