On 4/15/19 2:44 PM, Marco Felsch wrote:
> Currently every driver needs to parse the connector endpoints by it self.
> This is the initial work to make this generic. The generic connector has
> some common fields and some connector specific parts. The generic one
> includes:
> - type
> - label
> - remote_port (the port where the connector is connected to)
> - remote_id (the endpoint where the connector is connected to)
>
> The specific fields are 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 <[email protected]>
> Reviewed-by: Jacopo Mondi <[email protected]>
> ---
> [1] https://patchwork.kernel.org/cover/10794703/
>
> v6:
> - fix some spelling and style issues
> - rm unnecessary comments
> - drop vga and dvi connector
>
> v2-v4:
> - nothing since the patch was squashed from series [1] into this
> series.
>
> include/media/v4l2-connector.h | 30 ++++++++++++++++++++++++++++++
> include/media/v4l2-fwnode.h | 33 +++++++++++++++++++++++++++++++++
> 2 files changed, 63 insertions(+)
> create mode 100644 include/media/v4l2-connector.h
>
> diff --git a/include/media/v4l2-connector.h b/include/media/v4l2-connector.h
> new file mode 100644
> index 000000000000..3a951c54f50e
> --- /dev/null
> +++ b/include/media/v4l2-connector.h
> @@ -0,0 +1,30 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +/*
> + * v4l2-connector.h
> + *
> + * V4L2 connector types.
> + *
> + * Copyright 2019 Pengutronix, Marco Felsch <[email protected]>
> + */
> +
> +#ifndef V4L2_CONNECTOR_H
> +#define V4L2_CONNECTOR_H
> +
> +#define V4L2_CONNECTOR_MAX_LABEL 41
Where does 41 come from? It's a weird number...
> +
> +/**
> + * enum v4l2_connector_type - connector type
> + * @V4L2_CON_UNKNOWN: unknown connector type, no V4L2 connetor
> configuration
typo: connetor -> connector
> + * @V4L2_CON_COMPOSITE: analog composite connector
> + * @V4L2_CON_SVIDEO: analog svideo connector
> + * @V4L2_CON_HDMI: digital hdmi connector
> + */
> +enum v4l2_connector_type {
> + V4L2_CON_UNKNOWN,
> + V4L2_CON_COMPOSITE,
> + V4L2_CON_SVIDEO,
> + V4L2_CON_HDMI,
> +};
> +
> +#endif /* V4L2_CONNECTOR_H */
> +
Is there a reason to create a new header for this? I think it is perfectly OK to
add this define + enum for v4l2-fwnode.h.
> diff --git a/include/media/v4l2-fwnode.h b/include/media/v4l2-fwnode.h
> index 6c07825e18b9..f4df1b95c5ef 100644
> --- a/include/media/v4l2-fwnode.h
> +++ b/include/media/v4l2-fwnode.h
> @@ -22,6 +22,7 @@
> #include <linux/list.h>
> #include <linux/types.h>
>
> +#include <media/v4l2-connector.h>
> #include <media/v4l2-mediabus.h>
> #include <media/v4l2-subdev.h>
>
> @@ -126,6 +127,38 @@ struct v4l2_fwnode_link {
> unsigned int remote_port;
> };
>
> +/**
> + * struct v4l2_fwnode_connector_analog - analog connector data structure
> + * @supported_tvnorms: tv norms this connector supports, set to V4L2_STD_ALL
> + * if no restrictions are specified.
> + */
> +struct v4l2_fwnode_connector_analog {
> + v4l2_std_id supported_tvnorms;
> +};
> +
> +/**
> + * struct v4l2_fwnode_connector - the connector data structure
> + * @remote_port: identifier of the remote endpoint port the connector
> connects
> + * to
> + * @remote_id: identifier of the remote endpoint the connector connects to
> + * @label: connetor label
Same typo. It's probably a good idea to grep for this typo in this patch series
:-)
> + * @type: connector type
> + * @connector: connector configuration
> + * @connector.analog: analog connector configuration
> + * &struct v4l2_fwnode_connector_analog
> + */
> +struct v4l2_fwnode_connector {
> + unsigned int remote_port;
> + unsigned int remote_id;
> + char label[V4L2_CONNECTOR_MAX_LABEL];
> + enum v4l2_connector_type type;
> +
> + 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
>
Regards,
Hans
