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>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/core/device.c b/drivers/core/device.c
index 81ddecade2..6793e1c4f9 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;