dm: convert device_get_global_by_of_offset() to device_get_global_by_ofnode()

Also add device_find_global_by_ofnode() that also find a device based on
the OF node, but doesn't probe the device.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>

arch/arm/mach-rockchip/rk3188-board-spl.c

@@ -49,7 +49,7 @@ u32 spl_boot_device(void)
 		debug("node=%d\n", node);
 		goto fallback;
 	}
-	ret = device_get_global_by_of_offset(node, &dev);
+	ret = device_get_global_by_ofnode(offset_to_ofnode(node), &dev);
 	if (ret) {
 		debug("device at node %s/%d not found: %d\n", bootdev, node,
 		      ret);

arch/arm/mach-rockchip/rk3288-board-spl.c

@@ -51,7 +51,7 @@ u32 spl_boot_device(void)
 		debug("node=%d\n", node);
 		goto fallback;
 	}
-	ret = device_get_global_by_of_offset(node, &dev);
+	ret = device_get_global_by_ofnode(offset_to_ofnode(node), &dev);
 	if (ret) {
 		debug("device at node %s/%d not found: %d\n", bootdev, node,
 		      ret);

drivers/core/device.c

@@ -594,16 +594,16 @@ int device_get_child_by_of_offset(struct udevice *parent, int node,
 	return device_get_device_tail(dev, ret, devp);
 }
 
-static struct udevice *_device_find_global_by_of_offset(struct udevice *parent,
+static struct udevice *_device_find_global_by_ofnode(struct udevice *parent,
-							int of_offset)
+						     ofnode ofnode)
 {
 	struct udevice *dev, *found;
 
-	if (dev_of_offset(parent) == of_offset)
+	if (ofnode_equal(dev_ofnode(parent), ofnode))
 		return parent;
 
 	list_for_each_entry(dev, &parent->child_head, sibling_node) {
-		found = _device_find_global_by_of_offset(dev, of_offset);
+		found = _device_find_global_by_ofnode(dev, ofnode);
 		if (found)
 			return found;
 	}
@@ -611,11 +611,18 @@ static struct udevice *_device_find_global_by_of_offset(struct udevice *parent,
 	return NULL;
 }
 
-int device_get_global_by_of_offset(int of_offset, struct udevice **devp)
+int device_find_global_by_ofnode(ofnode ofnode, struct udevice **devp)
+{
+	*devp = _device_find_global_by_ofnode(gd->dm_root, ofnode);
+
+	return *devp ? 0 : -ENOENT;
+}
+
+int device_get_global_by_ofnode(ofnode ofnode, struct udevice **devp)
 {
 	struct udevice *dev;
 
-	dev = _device_find_global_by_of_offset(gd->dm_root, of_offset);
+	dev = _device_find_global_by_ofnode(gd->dm_root, ofnode);
 	return device_get_device_tail(dev, dev ? 0 : -ENOENT, devp);
 }
 

include/dm/device.h

@@ -473,18 +473,33 @@ int device_get_child_by_of_offset(struct udevice *parent, int of_offset,
 				  struct udevice **devp);
 
 /**
- * device_get_global_by_of_offset() - Get a device based on FDT offset
+ * device_find_global_by_ofnode() - Get a device based on ofnode
  *
- * Locates a device by its device tree offset, searching globally throughout
+ * Locates a device by its device tree ofnode, searching globally throughout
+ * the all driver model devices.
+ *
+ * The device is NOT probed
+ *
+ * @node: Device tree ofnode to find
+ * @devp: Returns pointer to device if found, otherwise this is set to NULL
+ * @return 0 if OK, -ve on error
+ */
+
+int device_find_global_by_ofnode(ofnode node, struct udevice **devp);
+
+/**
+ * device_get_global_by_ofnode() - Get a device based on ofnode
+ *
+ * Locates a device by its device tree ofnode, searching globally throughout
  * the all driver model devices.
  *
  * The device is probed to activate it ready for use.
  *
- * @of_offset: Device tree offset to find
+ * @node: Device tree ofnode to find
  * @devp: Returns pointer to device if found, otherwise this is set to NULL
  * @return 0 if OK, -ve on error
  */
-int device_get_global_by_of_offset(int of_offset, struct udevice **devp);
+int device_get_global_by_ofnode(ofnode node, struct udevice **devp);
 
 /**
  * device_find_first_child() - Find the first child of a device