f2a575f676
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>
67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
/*
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* OF graph binding parsing helpers
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*
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* Copyright (C) 2012 - 2013 Samsung Electronics Co., Ltd.
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* Author: Sylwester Nawrocki <s.nawrocki@samsung.com>
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*
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* Copyright (C) 2012 Renesas Electronics Corp.
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* Author: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*/
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#ifndef __LINUX_OF_GRAPH_H
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#define __LINUX_OF_GRAPH_H
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/**
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* struct of_endpoint - the OF graph endpoint data structure
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* @port: identifier (value of reg property) of a port this endpoint belongs to
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* @id: identifier (value of reg property) of this endpoint
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* @local_node: pointer to device_node of this endpoint
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*/
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struct of_endpoint {
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unsigned int port;
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unsigned int id;
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const struct device_node *local_node;
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};
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#ifdef CONFIG_OF
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int of_graph_parse_endpoint(const struct device_node *node,
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struct of_endpoint *endpoint);
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struct device_node *of_graph_get_next_endpoint(const struct device_node *parent,
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struct device_node *previous);
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struct device_node *of_graph_get_remote_port_parent(
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const struct device_node *node);
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struct device_node *of_graph_get_remote_port(const struct device_node *node);
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#else
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static inline int of_graph_parse_endpoint(const struct device_node *node,
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struct of_endpoint *endpoint);
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{
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return -ENOSYS;
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}
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static inline struct device_node *of_graph_get_next_endpoint(
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const struct device_node *parent,
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struct device_node *previous)
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{
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return NULL;
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}
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static inline struct device_node *of_graph_get_remote_port_parent(
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const struct device_node *node)
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{
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return NULL;
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}
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static inline struct device_node *of_graph_get_remote_port(
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const struct device_node *node)
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{
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return NULL;
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}
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#endif /* CONFIG_OF */
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#endif /* __LINUX_OF_GRAPH_H */
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