On 09/03/2017 07:49 PM, Sakari Ailus wrote:
> Add v4l2_fwnode_parse_reference_sensor_common for parsing common
> sensor properties that refer to adjacent devices such as flash or lens
> driver chips.
>
> As this is an association only, there's little a regular driver needs to
> know about these devices as such.
>
> Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Acked-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Regards,
Hans
> ---
> drivers/media/v4l2-core/v4l2-fwnode.c | 27 +++++++++++++++++++++++++++
> include/media/v4l2-fwnode.h | 3 +++
> 2 files changed, 30 insertions(+)
>
> diff --git a/drivers/media/v4l2-core/v4l2-fwnode.c b/drivers/media/v4l2-core/v4l2-fwnode.c
> index 24f8020caf28..f28be3b751d3 100644
> --- a/drivers/media/v4l2-core/v4l2-fwnode.c
> +++ b/drivers/media/v4l2-core/v4l2-fwnode.c
> @@ -530,6 +530,33 @@ int v4l2_fwnode_reference_parse(
> }
> EXPORT_SYMBOL_GPL(v4l2_fwnode_reference_parse);
>
> +int v4l2_fwnode_reference_parse_sensor_common(
> + struct device *dev, struct v4l2_async_notifier *notifier)
> +{
> + static const struct {
> + char *name;
> + char *cells;
> + unsigned int nr_cells;
> + } props[] = {
> + { "flash", NULL, 0 },
> + { "lens-focus", NULL, 0 },
> + };
> + unsigned int i;
> + int rval;
> +
> + for (i = 0; i < ARRAY_SIZE(props); i++) {
> + rval = v4l2_fwnode_reference_parse(
> + dev, notifier, props[i].name, props[i].cells,
> + props[i].nr_cells, sizeof(struct v4l2_async_subdev),
> + NULL);
> + if (rval < 0 && rval != -ENOENT)
> + return rval;
> + }
> +
> + return rval;
> +}
> +EXPORT_SYMBOL_GPL(v4l2_fwnode_reference_parse_sensor_common);
> +
> MODULE_LICENSE("GPL");
> MODULE_AUTHOR("Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>");
> MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>");
> diff --git a/include/media/v4l2-fwnode.h b/include/media/v4l2-fwnode.h
> index 52f528162818..fd14f1d38966 100644
> --- a/include/media/v4l2-fwnode.h
> +++ b/include/media/v4l2-fwnode.h
> @@ -282,4 +282,7 @@ int v4l2_fwnode_reference_parse(
> struct fwnode_reference_args *args,
> struct v4l2_async_subdev *asd));
>
> +int v4l2_fwnode_reference_parse_sensor_common(
> + struct device *dev, struct v4l2_async_notifier *notifier);
> +
> #endif /* _V4L2_FWNODE_H */
>
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