dm: core: Allow binding a device from a live tree

When a live tree is being used we need to record the node that was used to
create the device. Update device_bind_with_driver_data() to support this.

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

drivers/core/device.c

@@ -19,6 +19,7 @@
 #include <dm/lists.h>
 #include <dm/pinctrl.h>
 #include <dm/platdata.h>
+#include <dm/read.h>
 #include <dm/uclass.h>
 #include <dm/uclass-internal.h>
 #include <dm/util.h>
@@ -77,10 +78,7 @@ static int device_bind_common(struct udevice *parent, const struct driver *drv,
 		 */
 		if (uc->uc_drv->flags & DM_UC_FLAG_SEQ_ALIAS) {
 			if (uc->uc_drv->name && ofnode_valid(node)) {
-				fdtdec_get_alias_seq(gd->fdt_blob,
-						uc->uc_drv->name,
-						ofnode_to_offset(node),
-						&dev->req_seq);
+				dev_read_alias_seq(dev, &dev->req_seq);
 			}
 		}
 	}
@@ -216,11 +214,11 @@ fail_alloc1:
 
 int device_bind_with_driver_data(struct udevice *parent,
 				 const struct driver *drv, const char *name,
-				 ulong driver_data, int of_offset,
+				 ulong driver_data, ofnode node,
 				 struct udevice **devp)
 {
-	return device_bind_common(parent, drv, name, NULL, driver_data,
-				  offset_to_ofnode(of_offset), 0, devp);
+	return device_bind_common(parent, drv, name, NULL, driver_data, node,
+				  0, devp);
 }
 
 int device_bind(struct udevice *parent, const struct driver *drv,
@@ -247,8 +245,8 @@ int device_bind_by_name(struct udevice *parent, bool pre_reloc_only,
 	platdata_size = info->platdata_size;
 #endif
 	return device_bind_common(parent, drv, info->name,
-			(void *)info->platdata, 0, offset_to_ofnode(-1),
-			platdata_size, devp);
+			(void *)info->platdata, 0, ofnode_null(), platdata_size,
+			devp);
 }
 
 static void *alloc_priv(int size, uint flags)
@@ -385,7 +383,7 @@ int device_probe(struct udevice *dev)
 			goto fail;
 	}
 
-	if (drv->ofdata_to_platdata && dev_of_offset(dev) >= 0) {
+	if (drv->ofdata_to_platdata && dev_has_of_node(dev)) {
 		ret = drv->ofdata_to_platdata(dev);
 		if (ret)
 			goto fail;

drivers/core/lists.c

@@ -177,7 +177,7 @@ int lists_bind_fdt(struct udevice *parent, const void *blob, int offset,
 
 		dm_dbg("   - found match at '%s'\n", entry->name);
 		ret = device_bind_with_driver_data(parent, entry, name,
-						   id->data, offset, &dev);
+				id->data, offset_to_ofnode(offset), &dev);
 		if (ret == -ENODEV) {
 			dm_dbg("Driver '%s' refuses to bind\n", entry->name);
 			continue;

include/dm/device-internal.h

@@ -11,6 +11,9 @@
 #ifndef _DM_DEVICE_INTERNAL_H
 #define _DM_DEVICE_INTERNAL_H
 
+#include <dm/ofnode.h>
+
+struct device_node;
 struct udevice;
 
 /**
@@ -52,16 +55,15 @@ int device_bind(struct udevice *parent, const struct driver *drv,
  * @drv: Device's driver
  * @name: Name of device (e.g. device tree node name)
  * @driver_data: The driver_data field from the driver's match table.
- * @of_offset: Offset of device tree node for this device. This is -1 for
- * devices which don't use device tree.
+ * @node: Device tree node for this device. This is invalid for devices which
+ * don't use device tree.
  * @devp: if non-NULL, returns a pointer to the bound device
  * @return 0 if OK, -ve on error
  */
 int device_bind_with_driver_data(struct udevice *parent,
 				 const struct driver *drv, const char *name,
-				 ulong driver_data, int of_offset,
+				 ulong driver_data, ofnode node,
 				 struct udevice **devp);
-
 /**
  * device_bind_by_name: Create a device and bind it to a driver
  *