[SRU] [Bionic/Unstable] [PATCH 0/7] Support Power Management for Thunderbolt Controller

[Hui Wang]

Looks like the patch [7/7] is the key one to implement this feature. 
what is the relation between [1/7~6/7] and [7/7], could we drop [1/7~6/7]?

Regards,
Hui.

On 2018年08月28日 14:43, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1789358
>
> [Impact]
> New TBT controllers may use Native PCIe Enumeration (i.e. just like
> other normal PCIe device listed under lspci) instead of ACPI hotplug.
>
> Since TBT controller stops getting unplugged from PCIe bus, it draws
> additional power.
>
> [Fix]
> Support runtime power management for TBT controllers, so it can be put
> to D3 to save powers.
>
> [Test]
> I tested and verified this patch series can make Lenovo T480's TBT
> controller enters PCI D3 at runtime.
>
> [Regression Potential]
> Low. Almost all TBT controllers in the wild still uses ACPI hotplug,
> this series won't affect those users.
>
> Mika Westerberg (7):
>    thunderbolt: Handle NULL boot ACL entries properly
>    thunderbolt: Notify userspace when boot_acl is changed
>    thunderbolt: Use 64-bit DMA mask if supported by the platform
>    thunderbolt: Do not unnecessarily call ICM get route
>    thunderbolt: No need to take tb->lock in domain suspend/complete
>    thunderbolt: Use correct ICM commands in system suspend
>    thunderbolt: Add support for runtime PM
>
>   drivers/thunderbolt/domain.c  |  59 +++++++++---
>   drivers/thunderbolt/icm.c     | 174 ++++++++++++++++++++++++++++------
>   drivers/thunderbolt/nhi.c     |  46 ++++++++-
>   drivers/thunderbolt/switch.c  |  65 ++++++++++++-
>   drivers/thunderbolt/tb.h      |  10 ++
>   drivers/thunderbolt/tb_msgs.h |   4 +
>   drivers/thunderbolt/xdomain.c |  18 ++++
>   7 files changed, 328 insertions(+), 48 deletions(-)
>