977fadcba9c80174b80523b8b13bd185eeb30a5051dd81b7adefb33f.patch

From 9a9117b85ee716ea46b3beabcab0aa9b729dc8ce Mon Sep 17 00:00:00 2001
From: Ricardo Ribalda <ribalda@chromium.org>
Date: Fri, 4 Nov 2022 10:42:50 +0100
Subject: [PATCH] BACKPORT: FROMLIST: media: uvcvideo: Limit power line control
 for Lenovo Integrated Camera

The device does not implement the power line control correctly. Add a
corresponding control mapping override.

Bus 003 Device 002: ID 30c9:0093 Lenovo Integrated Camera
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.01
  bDeviceClass          239 Miscellaneous Device
  bDeviceSubClass         2
  bDeviceProtocol         1 Interface Association
  bMaxPacketSize0        64
  idVendor           0x30c9
  idProduct          0x0093
  bcdDevice            0.07
  iManufacturer           3 Lenovo
  iProduct                1 Integrated Camera
  iSerial                 2 8SSC21J75356V1SR2830069
  bNumConfigurations      1

Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
(am from https://patchwork.kernel.org/patch/13031551/)
(also found at https://lore.kernel.org/r/20221101-easycam-v2-2-5956414a608c@chromium.org)

UPSTREAM-TASK=b:255969015
BUG=b:233211200
TEST=v4l2-compliance on pujjoteen15w

Change-Id: I70363ae01f5f83949acef4ffaadfd1f0d4de03ad
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/4003335
Commit-Queue: Ricardo Ribalda <ribalda@chromium.org>
Tested-by: Ricardo Ribalda <ribalda@chromium.org>
Auto-Submit: Ricardo Ribalda <ribalda@chromium.org>
Reviewed-by: Yunke Cao <yunkec@chromium.org>
---
 drivers/media/usb/uvc/uvc_driver.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index 503403e964f4ada99360679e018deb95937e0d8e..81f987951c72627781d0a9d2e9aedd6e04284569 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -2379,6 +2379,22 @@ static const struct uvc_device_info uvc_ctrl_power_line_limited = {
 		NULL, /* Sentinel */
 	},
 };
+static const struct uvc_menu_info power_line_frequency_controls_limited[] = {
+	{ 1, "50 Hz" },
+	{ 2, "60 Hz" },
+};
+
+static const struct uvc_control_mapping uvc_ctrl_power_line_mapping_limited = {
+	.id		= V4L2_CID_POWER_LINE_FREQUENCY,
+	.entity		= UVC_GUID_UVC_PROCESSING,
+	.selector	= UVC_PU_POWER_LINE_FREQUENCY_CONTROL,
+	.size		= 2,
+	.offset		= 0,
+	.v4l2_type	= V4L2_CTRL_TYPE_MENU,
+	.data_type	= UVC_CTRL_DATA_TYPE_ENUM,
+	.menu_info	= power_line_frequency_controls_limited,
+	.menu_count	= ARRAY_SIZE(power_line_frequency_controls_limited),
+};
 
 static const struct uvc_device_info uvc_ctrl_power_line_uvc11 = {
 	.mappings = (const struct uvc_control_mapping *[]) {
-- 
2.34.1