[PATCH v2 1/1][SRU][H] drm/i915: Force a TypeC PHY disconnect during suspend/shutdown

[Krzysztof Kozlowski]

On 01/07/2021 12:53, chris.chiu at canonical.com wrote:
> From: Imre Deak <imre.deak at intel.com>
> 
> BugLink: https://bugs.launchpad.net/bugs/1931072
> 
> Disconnect TypeC PHYs during system suspend and shutdown, even with the
> corresponding TypeC sink still plugged to its connector, since leaving
> the PHY connected causes havoc at least during system resume in the
> presence of an Nvidia card.
> 
> Note that this will only make a difference in the TypeC DP alternate
> mode, since in Thunderbolt alternate mode the PHY is never owned by the
> display engine and there is no notion of PHY ownership in legacy mode
> (the display engine being the only possible owner in that mode and the
> TypeC subsystem not having anything to do with the port in that case).
> 
> Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/3500
> Reported-and-tested-by: Chris Chiu <chris.chiu at canonical.com>
> Signed-off-by: Imre Deak <imre.deak at intel.com>
> Reviewed-by: Uma Shankar <uma.shankar at intel.com>
> Link: https://patchwork.freedesktop.org/patch/msgid/20210610174223.605904-1-imre.deak@intel.com
> (backported from commit 151ec347b06a2fb6ecd2922475dca71a7af827a5
>  https://cgit.freedesktop.org/drm-intel/?h=drm-intel-next)

It did not reach linux-next yet, so I propose to wait. I actually could
not find it in drm-intel-next either. Patchwork says it is not applied.

Best regards,
Krzysztof