linux-kernel - [PATCH v3 0/5] media: uvcvideo: use vb2 ioctl and fop helpers

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Message-Id: <20250602-uvc-fop-v3-0-a99e18f65640@chromium.org>
Date: Mon, 02 Jun 2025 16:06:43 +0000
From: Ricardo Ribalda <ribalda@...omium.org>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>, 
 Hans de Goede <hdegoede@...hat.com>, Hans Verkuil <hans@...erkuil.nl>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Ricardo Ribalda <ribalda@...omium.org>, Hans Verkuil <hverkuil@...all.nl>, 
 Hans de Goede <hansg@...nel.org>
Subject: [PATCH v3 0/5] media: uvcvideo: use vb2 ioctl and fop helpers

This is a rebump of a 4 years old patch from Hans.
https://lore.kernel.org/linux-media/20210618122923.385938-21-ribalda@chromium.org/

It brings "new" helpers to the uvcdriver and removes tons of code.

The patch:
media: uvcvideo: Refactor uvc_queue_streamon
Is already in the uvc tree. It is here just for CI purposes, do not
review.

I have uploaded my working tree at:
https://gitlab.freedesktop.org/linux-media/users/ribalda/-/commits/b4/uvc-fop
which shows the differences from the original patch, this is mainly for
helping the review to people familiar with the previous patch.

Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
---
Changes in v3:
- Refactor start/stop_streaming(): make meta and video versions
- Link to v2: https://lore.kernel.org/r/20250602-uvc-fop-v2-0-508a293eae81@chromium.org

Changes in v2, Thanks HansV:
- Fix typos
- Use start_streaming and stop_streaming for managing pm
- Link to v1: https://lore.kernel.org/r/20250522-uvc-fop-v1-0-3bfe7a00f31d@chromium.org

---
Hans Verkuil (1):
      media: uvcvideo: Use vb2 ioctl and fop helpers

Ricardo Ribalda (4):
      media: uvcvideo: Refactor uvc_queue_streamon
      media: uvcvideo: Handle locks in uvc_queue_return_buffers
      media: uvcvideo: Split uvc_stop_streaming()
      media: uvcvideo: Remove stream->is_streaming field

 drivers/media/usb/uvc/uvc_driver.c   |  34 +---
 drivers/media/usb/uvc/uvc_metadata.c |   8 +-
 drivers/media/usb/uvc/uvc_queue.c    | 194 +++++------------------
 drivers/media/usb/uvc/uvc_v4l2.c     | 291 ++---------------------------------
 drivers/media/usb/uvc/uvcvideo.h     |  38 +----
 5 files changed, 64 insertions(+), 501 deletions(-)
---
base-commit: 02e8ee21bd40010ab00f4a8e995f4cc97dc83dea
change-id: 20250521-uvc-fop-b74e9007dd51

Best regards,
-- 
Ricardo Ribalda <ribalda@...omium.org>