Currently every driver needs to parse the connector endpoints by it self.
This is the initial work to make this generic. A generic connector has
common members and connector specific members. The common members are:
  - type
  - label (optional)
  - links
  - nr_of_links

The specific members are stored within a union, since only one of them
can be available at the time. Since this is the initial support the
patch adds only the analog-connector specific ones.

Signed-off-by: Marco Felsch <m.fel...@pengutronix.de>
---
[1] https://patchwork.kernel.org/cover/10794703/

v8:
- rename CON -> CONN
- supported_tvnorms_stds -> sdtv_stds and adapt description

v7:
- fix spelling issues
- constify label
- support variable label size
- replace single remote_port/id members by links member of variable
  size
- squash v4l2-connector into v4l2-fwnode

@Jacopo: I dropped your r b tag because I changed the port/id logic.

v6:
- fix some spelling and style issues
- rm unnecessary comments
- drop vga and dvi connector
- fix misspelt connector

v2-v4:
- nothing since the patch was squashed from series [1] into this
  series.

 include/media/v4l2-fwnode.h | 45 +++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/include/media/v4l2-fwnode.h b/include/media/v4l2-fwnode.h
index f6a7bcd13197..7ca5669ef6fa 100644
--- a/include/media/v4l2-fwnode.h
+++ b/include/media/v4l2-fwnode.h
@@ -123,6 +123,51 @@ struct v4l2_fwnode_link {
        unsigned int remote_port;
 };
 
+/**
+ * enum v4l2_connector_type - connector type
+ * @V4L2_CONN_UNKNOWN:   unknown connector type, no V4L2 connector 
configuration
+ * @V4L2_CONN_COMPOSITE: analog composite connector
+ * @V4L2_CONN_SVIDEO:    analog svideo connector
+ * @V4L2_CONN_HDMI:      digital hdmi connector
+ */
+enum v4l2_connector_type {
+       V4L2_CONN_UNKNOWN,
+       V4L2_CONN_COMPOSITE,
+       V4L2_CONN_SVIDEO,
+       V4L2_CONN_HDMI,
+};
+
+/**
+ * struct v4l2_fwnode_connector_analog - analog connector data structure
+ * @sdtv_stds: sdtv standards this connector supports, set to V4L2_STD_ALL
+ *             if no restrictions are specified.
+ */
+struct v4l2_fwnode_connector_analog {
+       v4l2_std_id sdtv_stds;
+};
+
+/**
+ * struct v4l2_fwnode_connector - the connector data structure
+ * @label: optional connector label
+ * @type: connector type
+ * @links: list of &struct v4l2_fwnode_link links the connector is connected to
+ * @nr_of_links: total number of links
+ * @connector: connector configuration
+ * @connector.analog: analog connector configuration
+ *                    &struct v4l2_fwnode_connector_analog
+ */
+struct v4l2_fwnode_connector {
+       const char *label;
+       enum v4l2_connector_type type;
+       struct v4l2_fwnode_link *links;
+       unsigned int nr_of_links;
+
+       union {
+               struct v4l2_fwnode_connector_analog analog;
+               /* future connectors */
+       } connector;
+};
+
 /**
  * v4l2_fwnode_endpoint_parse() - parse all fwnode node properties
  * @fwnode: pointer to the endpoint's fwnode handle
-- 
2.20.1

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