Merge tag 'dm-pull-8aug21' of https://source.denx.de/u-boot/custodians/u-boot-dm

Use log subsystem for dm_warn()
Various minor bug fixes

include/dm/uclass.h

@@ -159,7 +159,8 @@ void *uclass_get_priv(const struct uclass *uc);
  *
  * @key: ID to look up
  * @ucp: Returns pointer to uclass (there is only one per ID)
- * @return 0 if OK, -ve on error
+ * @return 0 if OK, -EDEADLK if driver model is not yet inited, other -ve on
+ *	other error
  */
 int uclass_get(enum uclass_id key, struct uclass **ucp);
 

include/dm/util.h

@@ -7,7 +7,7 @@
 #define __DM_UTIL_H
 
 #if CONFIG_IS_ENABLED(DM_WARN)
-void dm_warn(const char *fmt, ...);
+#define dm_warn(fmt...) log(LOGC_DM, LOGL_WARNING, ##fmt)
 #else
 static inline void dm_warn(const char *fmt, ...)
 {