APPLIED Re: [OEM-OSP1-B] [PATCH 0/4] Make hotplugging docking station to Thunderbolt port more reliable
tjaalton at ubuntu.com
Mon Dec 16 09:27:51 UTC 2019
On 15.12.2019 19.28, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1853991
> Sometimes USB ports and USB ethernet on Thunderbolt Docking don't work
> after hotplugging.
> Add proper link delay when PCIe devices transit out from D3cold.
> Tested with Dell WD19DC docking station on Dell XPS 9380. After applying
> the fix, the USB ports on docking always work after hotplugging.
> [Regression Potential]
> Low. This patch series adds proper delay required by PCIe spec, and only
> affects hotplug ports, i.e. Thunderbolt.
> Mika Westerberg (3):
> PCI: Make pcie_downstream_port() available outside of access.c
> PCI/PM: Add pcie_wait_for_link_delay()
> PCI/PM: Add missing link delays required by the PCIe spec
> Rafael J. Wysocki (1):
> PCI: PM: Avoid skipping bus-level PM on platforms without ACPI
> drivers/pci/access.c | 9 ---
> drivers/pci/pci-driver.c | 17 +++--
> drivers/pci/pci.c | 142 +++++++++++++++++++++++++++++++++++++--
> drivers/pci/pci.h | 10 +++
> include/linux/suspend.h | 26 ++++++-
> kernel/power/suspend.c | 3 +
> 6 files changed, 187 insertions(+), 20 deletions(-)
applied to osp1 oem-next, thanks
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