[    2.485650] ish-hid {33AECD58-B679-4E54-9BD9-A04D34F0C226}:
[hid-ish]: enum_devices_done OK, num_hid_devices=3
[    2.497337] hid-generic 001F:8087:0AC2.0003: hidraw2: <UNKNOWN> HID
v2.00 Device [hid-ishtp 8087:0AC2] on
[    2.506945] hid-generic 001F:8087:0AC2.0004: hidraw3: <UNKNOWN> HID
v2.00 Device [hid-ishtp 8087:0AC2] on
[    2.512127] hid-generic 001F:8087:0AC2.0005: hidraw4: <UNKNOWN> HID
v2.00 Device [hid-ishtp 8087:0AC2] on

$ ls /sys/bus/iio/devices/
iio:device0  iio:device1  trigger0  trigger1

One of them is an ambient light sensor, and it works only with this
patch applied.

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https://bugs.launchpad.net/bugs/1914543

Title:
  Missing device id for Intel TGL-H ISH [8086:43fc] in intel-ish-hid
  driver

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  In Progress
Status in linux-oem-5.10 package in Ubuntu:
  Invalid
Status in linux source package in Focal:
  In Progress
Status in linux-oem-5.10 source package in Focal:
  In Progress
Status in linux source package in Groovy:
  In Progress
Status in linux-oem-5.10 source package in Groovy:
  Invalid
Status in linux source package in Hirsute:
  In Progress
Status in linux-oem-5.10 source package in Hirsute:
  Invalid

Bug description:
  Following PCI device not recognized by intel-ish-hid driver:

  00:12.0 Serial controller [0700]: Intel Corporation Device [8086:43fc] 
(prog-if 00 [8250])
        Subsystem: Dell Device [1028:0a66]
        Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Interrupt: pin A routed to IRQ 16
        Region 0: Memory at 6073170000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: [80] Power Management version 3
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA 
PME(D0+,D1-,D2-,D3hot+,D3cold-)
                Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [90] Vendor Specific Information: Len=14 <?>

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: linux-oem (not installed)
  ProcVersionSignature: Ubuntu 5.10.0-1010.11-oem 5.10.6
  Uname: Linux 5.10.0-1010-oem x86_64
  ApportVersion: 2.20.11-0ubuntu27.14
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  u          1900 F.... pulseaudio
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Feb  4 14:34:09 2021
  DistributionChannelDescriptor:
   # This is the distribution channel descriptor for the OEM CDs
   # For more information see 
http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-somerville-focal-amd64-20200502-85+fossa-pidgeot-14+X81
  InstallationDate: Installed on 2021-01-22 (13 days ago)
  InstallationMedia: Ubuntu 20.04 "Focal" - Build amd64 LIVE Binary 
20200502-05:58
  MachineType: Dell Inc. Latitude 5421
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.10.0-1010-oem 
root=UUID=75317576-b181-4bb4-bdd6-b2911ff95aa2 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-5.10.0-1010-oem N/A
   linux-backports-modules-5.10.0-1010-oem  N/A
   linux-firmware                           1.187.9
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/02/2020
  dmi.bios.release: 99.2
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 99.2.3
  dmi.board.name: 020BN6
  dmi.board.vendor: Dell Inc.
  dmi.board.version: X01
  dmi.chassis.type: 10
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr99.2.3:bd12/02/2020:br99.2:svnDellInc.:pnLatitude5421:pvr:rvnDellInc.:rn020BN6:rvrX01:cvnDellInc.:ct10:cvr:
  dmi.product.family: Latitude
  dmi.product.name: Latitude 5421
  dmi.product.sku: 0A66
  dmi.sys.vendor: Dell Inc.

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