linux-kernel - [PATCH v2 00/12] media: uvcvideo: Add support for orientation and rotation.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250605-uvc-orientation-v2-0-5710f9d030aa@chromium.org>
Date: Thu, 05 Jun 2025 17:52:53 +0000
From: Ricardo Ribalda <ribalda@...omium.org>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>, 
 Hans de Goede <hdegoede@...hat.com>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>, 
 Hans Verkuil <hverkuil@...all.nl>, 
 Sakari Ailus <sakari.ailus@...ux.intel.com>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, 
 "Rafael J. Wysocki" <rafael@...nel.org>, Len Brown <lenb@...nel.org>
Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-usb@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-gpio@...r.kernel.org, linux-acpi@...r.kernel.org, 
 Ricardo Ribalda <ribalda@...omium.org>
Subject: [PATCH v2 00/12] media: uvcvideo: Add support for orientation and
 rotation.

The ACPI has ways to annotate the location of a USB device. Wire that
annotation to a v4l2 control.

To support all possible devices, add a way to annotate USB devices on DT
as well. The original binding discussion happened here:
https://lore.kernel.org/linux-devicetree/20241212-usb-orientation-v1-1-0b69adf05f37@chromium.org/

The following patches are needed regardless if we finally add support
for orientation and rotation or not:
- media: uvcvideo: Always set default_value
- media: uvcvideo: Do not create MC entities for virtual entities

Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
---
Changes in v2:
- Add support for rotation
- Rename fwnode to swentity
- Remove the patch to move the gpio file
- Remove patches already in media-committers
- Change priority of data origins
- Patch mipi-disco
- Link to v1: https://lore.kernel.org/r/20250403-uvc-orientation-v1-0-1a0cc595a62d@chromium.org

---
Ricardo Ribalda (12):
      media: uvcvideo: Always set default_value
      media: v4l: fwnode: Support ACPI's _PLD for v4l2_fwnode_device_parse
      ACPI: mipi-disco-img: Do not duplicate rotation info into swnodes
      media: ipu-bridge: Use v4l2_fwnode_device_parse helper
      media: ipu-bridge: Use v4l2_fwnode for unknown rotations
      dt-bindings: usb: usb-device: Add orientation and rotation
      media: uvcvideo: Make uvc_alloc_entity non static
      media: uvcvideo: Add support for V4L2_CID_CAMERA_ORIENTATION
      media: uvcvideo: Add uvc_ctrl_query_entity helper
      media: uvcvideo: Add get_* functions to uvc_entity
      media: uvcvideo: Add support for V4L2_CID_CAMERA_ROTATION
      media: uvcvideo: Do not create MC entities for virtual entities

 .../devicetree/bindings/usb/usb-device.yaml        |  10 ++
 drivers/acpi/mipi-disco-img.c                      |  15 ---
 drivers/media/pci/intel/ipu-bridge.c               |  52 ++++----
 drivers/media/usb/uvc/Makefile                     |   3 +-
 drivers/media/usb/uvc/uvc_ctrl.c                   | 132 ++++++++++++++-------
 drivers/media/usb/uvc/uvc_driver.c                 |  18 ++-
 drivers/media/usb/uvc/uvc_entity.c                 |  11 ++
 drivers/media/usb/uvc/uvc_swentity.c               | 118 ++++++++++++++++++
 drivers/media/usb/uvc/uvcvideo.h                   |  29 +++++
 drivers/media/v4l2-core/v4l2-fwnode.c              |  85 ++++++++++++-
 include/linux/usb/uvc.h                            |   3 +
 11 files changed, 377 insertions(+), 99 deletions(-)
---
base-commit: 5e1ff2314797bf53636468a97719a8222deca9ae
change-id: 20250403-uvc-orientation-5f7f19da5adb

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