media: uvcvideo: Add quirk for Logitech Rally Bar
authorRicardo Ribalda <ribalda@chromium.org>
Thu, 4 Apr 2024 18:00:49 +0000 (18:00 +0000)
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Fri, 19 Apr 2024 10:43:12 +0000 (13:43 +0300)
commit07731053d11f7647d5d8bc23caac997a4d562dfe
treeb0dcc42d8f2a00ea33d25c4622787f363ce568f7
parent836e2548524d2dfcb5acaf3be78f203b6b4bde6f
media: uvcvideo: Add quirk for Logitech Rally Bar

Logitech Rally Bar devices, despite behaving as UVC cameras, have a
different power management system that the other cameras from Logitech.

USB_QUIRK_RESET_RESUME is applied to all the UVC cameras from Logitech
at the usb core. Unfortunately, USB_QUIRK_RESET_RESUME causes undesired
USB disconnects in the Rally Bar that make them completely unusable.

There is an open discussion about if we should fix this in the core or
add a quirk in the UVC driver. In order to enable this hardware, let's
land this patch first, and we can revert it later if there is a
different conclusion.

Fixes: e387ef5c47dd ("usb: Add USB_QUIRK_RESET_RESUME for all Logitech UVC webcams")
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Devinder Khroad <dkhroad@logitech.com>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Link: https://lore.kernel.org/r/20240404-rallybar-v6-1-6d67bb6b69af@chromium.org
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
drivers/media/usb/uvc/uvc_driver.c
drivers/media/usb/uvc/uvcvideo.h