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dm: core: Add functions to find parent and OF data

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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>
This commit is contained in:
Simon Glass 2014-11-11 10:46:19 -07:00
parent 2ef249b442
commit 479728cb0c
2 changed files with 13 additions and 0 deletions
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5
drivers/core/device.c
View file

@ -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;

8
include/dm/device.h
View file

@ -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
*