Make Dell WD19 dock more reliable after suspend

[Kai-Heng Feng]

[Impact]
When Dell WD19 dock connects multiple USB3 storage devices, the USB Hub
used internally may stop working after suspend.

[Fix]
Disable LPM on the Realtek USB Hub, and let xHCI controller make sure
the link state transition is completed.

[Test]
After applying the patches, the Dell WD19 works reliably after thousand
times for suspend/resume cycle.

[Regression Potential]
Low. This replaces the currently "msleep" way with more robust
mechanism. I also test other systems and nothing breaks.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1868217

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 5.4.0-21.25

---------------
linux (5.4.0-21.25) focal; urgency=medium

  * CVE-2020-8835
    - SAUCE: bpf: undo incorrect __reg_bound_offset32 handling

 -- Thadeu Lima de Souza Cascardo <email address hidden> Thu, 26 Mar 2020 17:51:28 -0300

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-eoan' to 'verification-done-eoan'. If the problem still exists, change the tag 'verification-needed-eoan' to 'verification-failed-eoan'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 5.3.0-51.44

---------------
linux (5.3.0-51.44) eoan; urgency=medium

  * CVE-2020-11884
    - SAUCE: s390/mm: fix page table upgrade vs 2ndary address mode accesses

 -- Thadeu Lima de Souza Cascardo <email address hidden> Wed, 22 Apr 2020 17:35:41 -0300

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-oem-osp1 - 5.0.0-1052.57

---------------
linux-oem-osp1 (5.0.0-1052.57) bionic; urgency=medium

  * bionic/linux-oem-osp1: 5.0.0-1052.57 -proposed tracker (LP: #1876676)

  * Make Dell WD19 dock more reliable after suspend (LP: #1868217)
    - xhci: Ensure link state is U3 after setting USB_SS_PORT_LS_U3
    - xhci: Wait until link state trainsits to U0 after setting USB_SS_PORT_LS_U0
    - xhci: Finetune host initiated USB3 rootport link suspend and resume

  * Packaging resync (LP: #1786013)
    - [Packaging] add libcap-dev dependency

 -- Timo Aaltonen <email address hidden> Mon, 04 May 2020 11:56:26 +0300

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-oem-osp1 - 5.0.0-1059.64

---------------
linux-oem-osp1 (5.0.0-1059.64) bionic; urgency=medium

  [ Ubuntu: 5.0.0-52.56 ]

  * CVE-2020-0543
    - SAUCE: x86/cpu: Add a steppings field to struct x86_cpu_id
    - SAUCE: x86/cpu: Add 'table' argument to cpu_matches()
    - SAUCE: x86/speculation: Add Special Register Buffer Data Sampling (SRBDS)
      mitigation
    - SAUCE: x86/speculation: Add SRBDS vulnerability and mitigation documentation
    - SAUCE: x86/speculation: Add Ivy Bridge to affected list

linux-oem-osp1 (5.0.0-1054.59) bionic; urgency=medium

  * bionic/linux-oem-osp1: 5.0.0-1054.59 -proposed tracker (LP: #1881221)

  * Speed up the process of s3 resume (LP: #1876844)
    - PCI/PM: Adjust pcie_wait_for_link_delay() for caller delay
    - PCI/PM: Assume ports without DLL Link Active train links in 100 ms

linux-oem-osp1 (5.0.0-1053.58) bionic; urgency=medium

  * bionic/linux-oem-osp1: 5.0.0-1053.58 -proposed tracker (LP: #1878822)

  * rtl8723bu wifi issue after being turned off (LP: #1878296)
    - rtl8xxxu: Improve TX performance of RTL8723BU on rtl8xxxu driver
    - rtl8xxxu: add bluetooth co-existence support for single antenna
    - rtl8xxxu: remove set but not used variable 'rate_mask'
    - rtl8xxxu: Remove set but not used variable 'vif', 'dev', 'len'

  * Fix Pericom USB controller OHCI/EHCI PME# defect (LP: #1879321)
    - serial: 8250_pci: Move Pericom IDs to pci_ids.h
    - PCI: Avoid Pericom USB controller OHCI/EHCI PME# defect

  * Don't register platform::micmute if the related tokens don't exist
    (LP: #1877275)
    - SAUCE: platform/x86: dell-laptop: don't register platform::micmute if the
      related tokens don't exist

  [ Ubuntu: 5.0.0-49.53 ]

  * disco/linux: 5.0.0-49.53 -proposed tracker (LP: #1878826)
  * Disco update: upstream stable patchset 2020-05-14 (LP: #1878681)
    - remoteproc: Fix wrong rvring index computation
    - mtd: cfi: fix deadloop in cfi_cmdset_0002.c do_write_buffer
    - binder: take read mode of mmap_sem in binder_alloc_free_page()
    - usb: dwc3: gadget: Do link recovery for SS and SSP
    - usb: gadget: udc: bdc: Remove unnecessary NULL checks in bdc_req_complete
    - iio:ad7797: Use correct attribute_group
    - ASoC: q6dsp6: q6afe-dai: add missing channels to MI2S DAIs
    - ASoC: tas571x: disable regulators on failed probe
    - ASoC: wm8960: Fix wrong clock after suspend & resume
    - nfsd: memory corruption in nfsd4_lock()
    - i2c: altera: use proper variable to hold errno
    - rxrpc: Fix DATA Tx to disable nofrag for UDP on AF_INET6 socket
    - net/cxgb4: Check the return from t4_query_params properly
    - xfs: acquire superblock freeze protection on eofblocks scans
    - svcrdma: Fix trace point use-after-free race
    - svcrdma: Fix leak of svc_rdma_recv_ctxt objects
    - PCI: Avoid ASMedia XHCI USB PME# from D0 defect
    - PCI: Move Apex Edge TPU class quirk to fix BAR assignment
    - ARM: dts: bcm283x: Disable dsi0 node
    - cpumap: Avoid warning when CONFIG_DEBUG_PER_CPU_MAPS is enabled
    - net/mlx5: Fix failing fw tracer allocation on s390
    - perf/core: fix parent pid/tid in task exit events
    - bpf, x86_3...