[Intel-gfx] [PATCH 00/12] drm/i915: Move DP link retraining to hotplug work etc.

[Ville Syrjälä]

On Thu, Jul 28, 2016 at 05:50:36PM +0300, ville.syrjala at linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> Ok, so while looking at the upfront link training stuff, it became obvious
> that we needs to do something about the link training stuff that we have
> in hpd_pulse currently. The thing is, you can't grab any modeset locks from
> that work since it could lead to a deadlock with MST sideband stuff.
> So here's a quick attempt at moving the stuff over to the hotplug work.
> 
> I've included a few other things at the start just to make the
> surroundings a little less broken (some of that I've posted before).
> And there are a few potentially helpful snippets at the end too.
> The main meat is in the middle.
> 
> Entire series avaialable here:
> git://github.com/vsyrjala/linux.git dp_retrain_fixes
> 
> Ville Syrjälä (12):
>   drm/i915: Read PSR caps/intermediate freqs/etc. only once on eDP
>   drm/i915: Avoid mixing up SST and MST in DDI setup
>   drm/i915: Reject mixing MST and SST/HDMI on the same digital port
>   drm/i915: Track active streams also for DP SST
>   drm/i915: Allow MST sinks to work even if drm_probe_ddc() fails
>   drm/i915: Remove useless rate_to_index() usage
>   drm/i915: Don't try to ack sink irqs when there are none

I've pushed these to dinq. Thanks for the reviews.

>   drm/i915: Ignore initial lid state for eDP
>   drm/i915: Move DP link retraining into intel_dp_detect()
>   drm/i915: Skip dpcd/edid read unless there was a long hpd
>   drm/i915: Allow rate_to_index() to return non-exact matches
>   drm/i915: Add encoder .sync_state() hook

These are left over. Probably most of them need some
rework/rethinking anyway.

> 
>  drivers/gpu/drm/i915/intel_ddi.c     |  35 ++--
>  drivers/gpu/drm/i915/intel_display.c |  14 ++
>  drivers/gpu/drm/i915/intel_dp.c      | 390 ++++++++++++++++++-----------------
>  drivers/gpu/drm/i915/intel_dp_mst.c  |  16 +-
>  drivers/gpu/drm/i915/intel_drv.h     |  12 +-
>  5 files changed, 255 insertions(+), 212 deletions(-)
> 
> Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira at intel.com>
> Cc: Jim Bride <jim.bride at linux.intel.com>
> Cc: Manasi D Navare <manasi.d.navare at intel.com>
> Cc: Durgadoss R <durgadoss.r at intel.com>
> Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
> -- 
> 2.7.4

-- 
Ville Syrjälä
Intel OTC