c6e8d96d42
v4l2_of_parse_parallel_bus() function is now static and EXPORT_SYMBOL() doesn't apply to it any more. Drop this meaningless statement, which was supposed to be done in the original merged patch. While at it, edit the copyright notice so it is sorted in both the v4l2-of.c and v4l2-of.h file in newest entries on top order, and state clearly I'm just the author of parts of the code, not the copyright owner. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
112 lines
2.9 KiB
C
112 lines
2.9 KiB
C
/*
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* V4L2 OF binding parsing library
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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 _V4L2_OF_H
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#define _V4L2_OF_H
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#include <linux/list.h>
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#include <linux/types.h>
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#include <linux/errno.h>
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#include <media/v4l2-mediabus.h>
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struct device_node;
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/**
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* struct v4l2_of_bus_mipi_csi2 - MIPI CSI-2 bus data structure
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* @flags: media bus (V4L2_MBUS_*) flags
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* @data_lanes: an array of physical data lane indexes
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* @clock_lane: physical lane index of the clock lane
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* @num_data_lanes: number of data lanes
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*/
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struct v4l2_of_bus_mipi_csi2 {
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unsigned int flags;
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unsigned char data_lanes[4];
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unsigned char clock_lane;
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unsigned short num_data_lanes;
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};
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/**
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* struct v4l2_of_bus_parallel - parallel data bus data structure
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* @flags: media bus (V4L2_MBUS_*) flags
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* @bus_width: bus width in bits
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* @data_shift: data shift in bits
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*/
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struct v4l2_of_bus_parallel {
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unsigned int flags;
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unsigned char bus_width;
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unsigned char data_shift;
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};
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/**
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* struct v4l2_of_endpoint - the 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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* @remote: phandle to remote endpoint node
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* @bus_type: bus type
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* @bus: bus configuration data structure
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* @head: list head for this structure
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*/
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struct v4l2_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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const __be32 *remote;
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enum v4l2_mbus_type bus_type;
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union {
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struct v4l2_of_bus_parallel parallel;
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struct v4l2_of_bus_mipi_csi2 mipi_csi2;
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} bus;
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struct list_head head;
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};
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#ifdef CONFIG_OF
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void v4l2_of_parse_endpoint(const struct device_node *node,
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struct v4l2_of_endpoint *link);
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struct device_node *v4l2_of_get_next_endpoint(const struct device_node *parent,
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struct device_node *previous);
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struct device_node *v4l2_of_get_remote_port_parent(
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const struct device_node *node);
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struct device_node *v4l2_of_get_remote_port(const struct device_node *node);
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#else /* CONFIG_OF */
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static inline int v4l2_of_parse_endpoint(const struct device_node *node,
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struct v4l2_of_endpoint *link)
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{
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return -ENOSYS;
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}
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static inline struct device_node *v4l2_of_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 *v4l2_of_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 *v4l2_of_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 /* _V4L2_OF_H */
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