Re: [PATCH v6 0/6] drm/i915/dp: Work around a DSC pixel throughput issue

[Imre Deak <imre.deak@intel.com>]

Hi Thomas, Maarten, Maxim,

could you ack merging this patchset via intel trees? Patch 1 and 2 has
changes in drm_dp_helper.c, but it would be good to fix the cases on
Intel HW where the affected docking stations are used.

Thanks,
Imre

On Tue, Sep 30, 2025 at 09:24:44PM +0300, Imre Deak wrote:
> This is v6 of [1], removing the unreachable default switch case in
> drm_dp_dsc_sink_max_slice_throughput() and adding the R-b and T-b tags
> from Ville and Swati.
> 
> Reported-by: Vidya Srinivas <vidya.srinivas@intel.com>
> Reported-by: Swati Sharma <swati2.sharma@intel.com>
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Cc: dri-devel@lists.freedesktop.org
> 
> [1] https://lore.kernel.org/all/20250926211236.474043-1-imre.deak@intel.com
> 
> Imre Deak (6):
>   drm/dp: Add quirk for Synaptics DSC throughput link-bpp limit
>   drm/dp: Add helpers to query the branch DSC max throughput/line-width
>   drm/i915/dp: Calculate DSC slice count based on per-slice peak
>     throughput
>   drm/i915/dp: Pass DPCD device descriptor to
>     intel_dp_get_dsc_sink_cap()
>   drm/i915/dp: Verify branch devices' overall pixel throughput/line
>     width
>   drm/i915/dp: Handle Synaptics DSC throughput link-bpp quirk
> 
>  drivers/gpu/drm/display/drm_dp_helper.c       | 156 ++++++++++++++++++
>  .../drm/i915/display/intel_display_types.h    |   9 +
>  drivers/gpu/drm/i915/display/intel_dp.c       | 146 ++++++++++++++--
>  drivers/gpu/drm/i915/display/intel_dp.h       |   5 +-
>  drivers/gpu/drm/i915/display/intel_dp_mst.c   |   9 +-
>  include/drm/display/drm_dp.h                  |   3 +
>  include/drm/display/drm_dp_helper.h           |  14 ++
>  7 files changed, 328 insertions(+), 14 deletions(-)
> 
> -- 
> 2.49.1
>