dm: change dm_warn() message into debug() in uclass_add()

The command "dm uclass" tries to display all the UClasses, but
some of them might be disabled by Kconfig.

The function do_dm_dump_uclass() iterates over all the UClass IDs
and calls uclass_get() for each of them.  Then, it displays annoying
message "Cannot find uclass for id ..." every time it fails to get
the UClass.

As a result, we get much noisier log for the "dm uclass" command.

  => dm uclass
  uclass 0: root
  - * root_driver @ bfb54028, seq 0, (req -1)

  Cannot find uclass for id 1: please add the UCLASS_DRIVER() ...
  Cannot find uclass for id 2: please add the UCLASS_DRIVER() ...
  Cannot find uclass for id 3: please add the UCLASS_DRIVER() ...
  Cannot find uclass for id 4: please add the UCLASS_DRIVER() ...
  Cannot find uclass for id 5: please add the UCLASS_DRIVER() ...
  Cannot find uclass for id 6: please add the UCLASS_DRIVER() ...

This commit suppresses these warnings.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Simon Glass <sjg@chromium.org>

diff --git a/drivers/core/uclass.c b/drivers/core/uclass.c
index 7de817324b90fe22e99a2948f34a11926eaee2f7..aba98801fd4505b269f3aecf6ac454c3f21bff86 100644 (file)
--- a/drivers/core/uclass.c
+++ b/drivers/core/uclass.c
@@ -56,8 +56,8 @@ static int uclass_add(enum uclass_id id, struct uclass **ucp)
        *ucp = NULL;
        uc_drv = lists_uclass_lookup(id);
        if (!uc_drv) {
-               dm_warn("Cannot find uclass for id %d: please add the UCLASS_DRIVER() declaration for this UCLASS_... id\n",
-                       id);
+               debug("Cannot find uclass for id %d: please add the UCLASS_DRIVER() declaration for this UCLASS_... id\n",
+                     id);
                return -ENOENT;
        }
        uc = calloc(1, sizeof(*uc));