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[media] of: move common endpoint parsing to drivers/of

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This patch adds a new struct of_endpoint which is then embedded in struct
v4l2_of_endpoint and contains the endpoint properties that are not V4L2
(or even media) specific: the port number, endpoint id, local device tree
node and remote endpoint phandle. of_graph_parse_endpoint parses those
properties and is used by v4l2_of_parse_endpoint, which just adds the
V4L2 MBUS information to the containing v4l2_of_endpoint structure.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
This commit is contained in:
Philipp Zabel 2014-02-14 11:53:56 +01:00
parent 4329b93b28
commit f2a575f676
6 changed files with 59 additions and 25 deletions
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20
include/linux/of_graph.h
View file

@ -14,7 +14,21 @@
#ifndef __LINUX_OF_GRAPH_H
#define __LINUX_OF_GRAPH_H
/**
* struct of_endpoint - the OF graph endpoint data structure
* @port: identifier (value of reg property) of a port this endpoint belongs to
* @id: identifier (value of reg property) of this endpoint
* @local_node: pointer to device_node of this endpoint
*/
struct of_endpoint {
unsigned int port;
unsigned int id;
const struct device_node *local_node;
};
#ifdef CONFIG_OF
int of_graph_parse_endpoint(const struct device_node *node,
struct of_endpoint *endpoint);
struct device_node *of_graph_get_next_endpoint(const struct device_node *parent,
struct device_node *previous);
struct device_node *of_graph_get_remote_port_parent(
@ -22,6 +36,12 @@ struct device_node *of_graph_get_remote_port_parent(
struct device_node *of_graph_get_remote_port(const struct device_node *node);
#else
static inline int of_graph_parse_endpoint(const struct device_node *node,
struct of_endpoint *endpoint);
{
return -ENOSYS;
}
static inline struct device_node *of_graph_get_next_endpoint(
const struct device_node *parent,
struct device_node *previous)