linux-kernel - [PATCH v2 0/7] media: uvc: Probe PLF limits at start-up

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Date: Mon, 10 Jun 2024 23:09:51 +0000
From: Ricardo Ribalda <ribalda@...omium.org>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: Sergey Senozhatsky <senozhatsky@...omium.org>, 
 linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Ricardo Ribalda <ribalda@...omium.org>
Subject: [PATCH v2 0/7] media: uvc: Probe PLF limits at start-up

The UVC standard descries the values for the PLF control for its
versions 1.1 and and 1.5, but it does not describe which values MUST be
implemented.

So far, we have been adding "device quirks" to provide proper limits for
the control, but this is failing to scale.

Add a function that during probe-time checks the capability of the
control.

Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
---
Changes in v2: Thanks Laurent
- Cleanup mapings from uvc_device_info
- Use __free()
- Implement filter_mapping
- Link to v1: https://lore.kernel.org/r/20240318-billion-v1-0-2f7bc0ee2030@chromium.org

---
Ricardo Ribalda (7):
      media: uvcvideo: Allow custom control mapping
      media: uvcvideo: Refactor Power Line Frequency limit selection
      media: uvcvideo: Probe the PLF characteristics
      media: uvcvideo: Cleanup version-specific mapping
      media: uvcvideo: Remove PLF device quirking
      media: uvcvideo: Remove mappings form uvc_device_info
      media: uvcvideo: Replace get_mapping with filter_mapping

 drivers/media/usb/uvc/uvc_ctrl.c   | 191 ++++++++++++++++++++-----------------
 drivers/media/usb/uvc/uvc_driver.c | 122 -----------------------
 drivers/media/usb/uvc/uvcvideo.h   |   8 +-
 3 files changed, 109 insertions(+), 212 deletions(-)
---
base-commit: b14257abe7057def6127f6fb2f14f9adc8acabdb
change-id: 20240313-billion-5b2a45fa86f4

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