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staging: media: tegra-video: document tegra_channel_get_remote_source_subdev

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Clarify what this function does.

Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Luca Ceresoli 2023-04-18 10:00:38 +02:00 committed by Hans Verkuil
parent b48ece9bb8
commit 2f229d4049
1 changed files with 3 additions and 0 deletions
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drivers/staging/media/tegra-video/vi.c
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@ -164,6 +164,9 @@ tegra_channel_get_remote_csi_subdev(struct tegra_vi_channel *chan)
return media_entity_to_v4l2_subdev(pad->entity);
}
/*
* Walk up the chain until the initial source (e.g. image sensor)
*/
struct v4l2_subdev *
tegra_channel_get_remote_source_subdev(struct tegra_vi_channel *chan)
{