[PATCH v2 05/37] dm: core: Adjust uclass setup with of-platdata

[Simon Glass]

When OF_PLATDATA_INST is enabled we don't need to create the uclass list.
Instead we just need to point to the existing list. Update the code
accordingly.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

(no changes since v1)

 drivers/core/root.c | 8 ++++++--
 include/dm/root.h   | 3 +++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/core/root.c b/drivers/core/root.c
index 2bfa75b4725..6dadca18ee1 100644
--- a/drivers/core/root.c
+++ b/drivers/core/root.c
@@ -139,8 +139,12 @@ int dm_init(bool of_live)
 		dm_warn("Virtual root driver already exists!\n");
 		return -EINVAL;
 	}
-	gd->uclass_root = &DM_UCLASS_ROOT_S_NON_CONST;
-	INIT_LIST_HEAD(DM_UCLASS_ROOT_NON_CONST);
+	if (CONFIG_IS_ENABLED(OF_PLATDATA_INST)) {
+		gd->uclass_root = &uclass_head;
+	} else {
+		gd->uclass_root = &DM_UCLASS_ROOT_S_NON_CONST;
+		INIT_LIST_HEAD(DM_UCLASS_ROOT_NON_CONST);
+	}
 
 	if (IS_ENABLED(CONFIG_NEEDS_MANUAL_RELOC)) {
 		fix_drivers();
diff --git a/include/dm/root.h b/include/dm/root.h
index 89afbee6196..42510b106ab 100644
--- a/include/dm/root.h
+++ b/include/dm/root.h
@@ -11,6 +11,9 @@
 
 struct udevice;
 
+/* Head of the uclass list if CONFIG_OF_PLATDATA_INST is enabled */
+extern struct list_head uclass_head;
+
 /**
  * dm_root() - Return pointer to the top of the driver tree
  *
-- 
2.30.0.365.g02bc693789-goog