ACK: [PATCH 0/1][SRU][Bionic] Fix Nvidia fails after switching its mode

[Anthony Wong]

On Tue, Jun 26, 2018 at 03:55:29PM +0800, AceLan Kao wrote:
> BugLink: https://bugs.launchpad.net/bugs/1778658
> 
> [Impact]
> Switch Nvidia mode requires rebooting the system. It's because of
> losing some of its states while switching mode if runtime PM is enabled.
> It's a generic issue that would happen on some other devices, too.
> This patch restores devices' config space on runtime resume.
> 
> [Test]
> Test and verify it on machines with Nvidia discrete graphics.
> 
> [Fix]
> Fix by saving and restoring config space over a runtime suspend cycle
> even if the device is not bound.
> 
> [Regression Potential]
> Low. It just saves and restores states during suspending and resuming.
> 
> Rafael J. Wysocki (1):
>   PCI: Restore config space on runtime resume despite being unbound
> 
>  drivers/pci/pci-driver.c | 17 +++++++++++------
>  1 file changed, 11 insertions(+), 6 deletions(-)

Looks good, clean cherry-pick.

Acked-by: Anthony Wong <anthony.wong at canonical.com>