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- /*
- * V4L2 OF binding parsing library
- *
- * Copyright (C) 2012 - 2013 Samsung Electronics Co., Ltd.
- * Author: Sylwester Nawrocki <s.nawrocki@samsung.com>
- *
- * Copyright (C) 2012 Renesas Electronics Corp.
- * Author: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- */
- #ifndef _V4L2_OF_H
- #define _V4L2_OF_H
- #include <linux/list.h>
- #include <linux/types.h>
- #include <linux/errno.h>
- #include <media/v4l2-mediabus.h>
- struct device_node;
- /**
- * struct v4l2_of_bus_mipi_csi2 - MIPI CSI-2 bus data structure
- * @flags: media bus (V4L2_MBUS_*) flags
- * @data_lanes: an array of physical data lane indexes
- * @clock_lane: physical lane index of the clock lane
- * @num_data_lanes: number of data lanes
- */
- struct v4l2_of_bus_mipi_csi2 {
- unsigned int flags;
- unsigned char data_lanes[4];
- unsigned char clock_lane;
- unsigned short num_data_lanes;
- };
- /**
- * struct v4l2_of_bus_parallel - parallel data bus data structure
- * @flags: media bus (V4L2_MBUS_*) flags
- * @bus_width: bus width in bits
- * @data_shift: data shift in bits
- */
- struct v4l2_of_bus_parallel {
- unsigned int flags;
- unsigned char bus_width;
- unsigned char data_shift;
- };
- /**
- * struct v4l2_of_endpoint - the 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
- * @remote: phandle to remote endpoint node
- * @bus_type: bus type
- * @bus: bus configuration data structure
- * @head: list head for this structure
- */
- struct v4l2_of_endpoint {
- unsigned int port;
- unsigned int id;
- const struct device_node *local_node;
- const __be32 *remote;
- enum v4l2_mbus_type bus_type;
- union {
- struct v4l2_of_bus_parallel parallel;
- struct v4l2_of_bus_mipi_csi2 mipi_csi2;
- } bus;
- struct list_head head;
- };
- #ifdef CONFIG_OF
- void v4l2_of_parse_endpoint(const struct device_node *node,
- struct v4l2_of_endpoint *link);
- struct device_node *v4l2_of_get_next_endpoint(const struct device_node *parent,
- struct device_node *previous);
- struct device_node *v4l2_of_get_remote_port_parent(
- const struct device_node *node);
- struct device_node *v4l2_of_get_remote_port(const struct device_node *node);
- #else /* CONFIG_OF */
- static inline int v4l2_of_parse_endpoint(const struct device_node *node,
- struct v4l2_of_endpoint *link)
- {
- return -ENOSYS;
- }
- static inline struct device_node *v4l2_of_get_next_endpoint(
- const struct device_node *parent,
- struct device_node *previous)
- {
- return NULL;
- }
- static inline struct device_node *v4l2_of_get_remote_port_parent(
- const struct device_node *node)
- {
- return NULL;
- }
- static inline struct device_node *v4l2_of_get_remote_port(
- const struct device_node *node)
- {
- return NULL;
- }
- #endif /* CONFIG_OF */
- #endif /* _V4L2_OF_H */
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