[PATCH 0/1][SRU][OEM-5.6]UBUNTU: SAUCE: drm/i915/dp_mst - wait longer during the clock recovery for Display port

[Timo Aaltonen]

On 4.11.2020 13.42, Koba Ko wrote:
> BugLink: https://bugs.launchpad.net/bugs/1902861
> 
> [Impact]
> For some TGL platform, connect with the external monitor on the docking station(SC),
> after cold/warm boot, the external monitor can't output the video and need to hotplug the docking station.
> 
> [Fix]
> On the link-training phase, Wait longer during the clock recovery.
> 
> [test]
> With the patch, The TGL-machine connect with the external monitor on docking station(SC) and
> can output the video to the external monitor on docking station after cold/warm boot.
> 
> [Regression Potential]
> Medium, it may not the root cause
> 
> Koba Ko (1):
>    drm/i915/dp_mst: wait longer during the clock recovery
> 
>   drivers/gpu/drm/drm_dp_helper.c                | 18 ++++++++++++++++++
>   .../drm/i915/display/intel_dp_link_training.c  | 18 +++++++++++-------
>   include/drm/drm_dp_helper.h                    |  1 +
>   3 files changed, 30 insertions(+), 7 deletions(-)
> 

This doesn't apply, the third hunk of intel_dp_link_training.c fails.


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