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-rw-r--r--include/media/v4l2-of.h111
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diff --git a/include/media/v4l2-of.h b/include/media/v4l2-of.h
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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 */