[PATCH v4 3/3] media: uvcvideo: add quirks for Razer Kiyo Pro webcam

[JP Hein <jp@jphein.com>]

The Razer Kiyo Pro (1532:0e05) is a USB 3.0 webcam whose firmware has
two failure modes that cascade into full xHCI host controller death,
disconnecting every USB device on the bus:

  1. LPM/autosuspend resume: the device fails to reinitialize its UVC
     endpoints on resume, producing EPIPE on SET_CUR. The stalled
     endpoint triggers an xHCI stop-endpoint timeout.

  2. Rapid control transfers: sustained rapid SET_CUR operations
     (hundreds over several seconds) overwhelm the firmware.

Add the device to the UVC driver table with:

  - UVC_QUIRK_CTRL_THROTTLE: rate-limit SET_CUR (50ms interval) and
    skip error-code queries after EPIPE to prevent crash trigger #2.

  - UVC_QUIRK_DISABLE_AUTOSUSPEND: prevent USB autosuspend transitions
    that trigger crash #1. Same approach as Insta360 Link.

  - UVC_QUIRK_NO_RESET_RESUME: avoid the fragile reset-during-resume
    path. Same approach as Logitech Rally Bar.

Cc: stable@vger.kernel.org
Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2061177
Signed-off-by: JP Hein <jp@jphein.com>
---
 drivers/media/usb/uvc/uvc_driver.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index b0ca81d92..e8b4de942 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -2920,6 +2920,23 @@ static const struct usb_device_id uvc_ids[] = {
 	  .bInterfaceSubClass	= 1,
 	  .bInterfaceProtocol	= 0,
 	  .driver_info		= (kernel_ulong_t)&uvc_quirk_probe_minmax },
+
+	/*
+	 * Razer Kiyo Pro -- firmware crashes under rapid control transfers
+	 * and on LPM/autosuspend resume, cascading into xHCI controller
+	 * death that disconnects all USB devices on the bus.
+	 */
+	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
+				| USB_DEVICE_ID_MATCH_INT_INFO,
+	  .idVendor		= 0x1532,
+	  .idProduct		= 0x0e05,
+	  .bInterfaceClass	= USB_CLASS_VIDEO,
+	  .bInterfaceSubClass	= 1,
+	  .bInterfaceProtocol	= 0,
+	  .driver_info		= UVC_INFO_QUIRK(UVC_QUIRK_CTRL_THROTTLE
+					| UVC_QUIRK_DISABLE_AUTOSUSPEND
+					| UVC_QUIRK_NO_RESET_RESUME) },
+
 	/* Kurokesu C1 PRO */
 	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
 				| USB_DEVICE_ID_MATCH_INT_INFO,
-- 
2.43.0