[v6,04/20] staging: media: tegra-video: document tegra_channel_get_remote_source_subdev

Commit Message

Luca Ceresoli April 18, 2023, 8 a.m. UTC

Clarify what this function does.

Signed-off-by: Luca Ceresoli <[e-mail]>
Reviewed-by: Dmitry Osipenko <[e-mail]>

---

No changes in v6
No changes in v5

Changed in v4:
 - Added review tags

No changes in v3
No changes in v2
---
 drivers/staging/media/tegra-video/vi.c | 3 +++
 1 file changed, 3 insertions(+)

Patch

diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c
index 11dd142c98c5..44c56dc85980 100644
--- a/drivers/staging/media/tegra-video/vi.c
+++ b/drivers/staging/media/tegra-video/vi.c
@@ -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)
 {