From 479728cb0c752a121e0fd84c6c6d74e93e086905 Mon Sep 17 00:00:00 2001
From: Simon Glass <sjg@chromium.org>
Date: Tue, 11 Nov 2014 10:46:19 -0700
Subject: [PATCH] dm: core: Add functions to find parent and OF data
Add dev_get_parent() as a convenience to obtain the parent of a device.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@ti.com>
Acked-by: Heiko Schocher <hs@denx.de>
---
drivers/core/device.c | 5 +++++
include/dm/device.h | 8 ++++++++
2 files changed, 13 insertions(+)
diff --git a/drivers/core/device.c b/drivers/core/device.c
index 81ddecade28..6793e1c4f94 100644
--- a/drivers/core/device.c
+++ b/drivers/core/device.c
@@ -381,6 +381,11 @@ int device_find_next_child(struct udevice **devp)
return 0;
}
+struct udevice *dev_get_parent(struct udevice *child)
+{
+ return child->parent;
+}
+
ulong dev_get_of_data(struct udevice *dev)
{
return dev->of_id->data;
diff --git a/include/dm/device.h b/include/dm/device.h
index 287504cb270..13598a15b68 100644
--- a/include/dm/device.h
+++ b/include/dm/device.h
@@ -207,6 +207,14 @@ void *dev_get_parentdata(struct udevice *dev);
*/
void *dev_get_priv(struct udevice *dev);
+/**
+ * struct dev_get_parent() - Get the parent of a device
+ *
+ * @child: Child to check
+ * @return parent of child, or NULL if this is the root device
+ */
+struct udevice *dev_get_parent(struct udevice *child);
+
/**
* dev_get_of_data() - get the device tree data used to bind a device
*
--
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