[PATCH v4 0/3] media: subdev: Add v4l2_subdev_get_frame_desc_passthrough and use it

From: Tomi Valkeinen
Date: Mon Mar 24 2025 - 04:05:20 EST


When writing the exact same code the third time for Renesas, I thought
we probably need a helper.

Tomi

Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@xxxxxxxxxxxxxxxx>
---
Changes in v4:
- Update the helper name in commit descriptions too
- Link to v3: https://lore.kernel.org/r/20250324-frame-desc-passthrough-v3-0-993839a1f9b3@xxxxxxxxxxxxxxxx

Changes in v3:
- Rename the helper to v4l2_subdev_get_frame_desc_passthrough()
- Check for fd->entry[] array overflow
- Add error prints (with dev_dbg)
- Link to v2: https://lore.kernel.org/r/20250219-frame-desc-passthrough-v2-0-5135d57ecd6a@xxxxxxxxxxxxxxxx

Changes in v2:
- Fix "uninitialized symbol 'ret'"
- Reorder local variables
- Link to v1: https://lore.kernel.org/r/20250218-frame-desc-passthrough-v1-0-a32458f53714@xxxxxxxxxxxxxxxx

---
Tomi Valkeinen (3):
media: subdev: Add v4l2_subdev_get_frame_desc_passthrough helper
media: i2c: ds90ub953: Use v4l2_subdev_get_frame_desc_passthrough
media: i2c: ds90ub913: Use v4l2_subdev_get_frame_desc_passthrough

drivers/media/i2c/ds90ub913.c | 59 +-----------------
drivers/media/i2c/ds90ub953.c | 61 +-----------------
drivers/media/v4l2-core/v4l2-subdev.c | 113 ++++++++++++++++++++++++++++++++++
include/media/v4l2-subdev.h | 22 +++++++
4 files changed, 137 insertions(+), 118 deletions(-)
---
base-commit: f2151613e040973c868d28c8b00885dfab69eb75
change-id: 20250218-frame-desc-passthrough-66805e413974

Best regards,
--
Tomi Valkeinen <tomi.valkeinen+renesas@xxxxxxxxxxxxxxxx>