[PATCH] drm/i915/display/dp: Remove UHBR13.5 for icl

[Murthy, Arun R]

> -----Original Message-----
> From: Nikula, Jani <jani.nikula at intel.com>
> Sent: Wednesday, May 8, 2024 3:29 PM
> To: Murthy, Arun R <arun.r.murthy at intel.com>; Ville Syrjälä
> <ville.syrjala at linux.intel.com>
> Cc: intel-gfx at lists.freedesktop.org
> Subject: RE: [PATCH] drm/i915/display/dp: Remove UHBR13.5 for icl
> 
> On Wed, 08 May 2024, "Murthy, Arun R" <arun.r.murthy at intel.com> wrote:
> > This is the limitation from the retimer hardware.
> 
> The commit message needs to reflect this.
> 
> Do all units have a retimer with the limitation? Or could you have a DG2
> without the limitation? Do we need to check for that instead of blanket removal
> of UHBR 13.5 for DG2?
> 
Changed the commit msg as below

Display 12+ hardware supports UHBR13.5 but due to the retimer constraints platform doesn't support UHBR13.5. This is the same for mtl and UHBR13.5 is removed as part of the commit caf3d748f646 ("drm/i915/dp: Remove support for UHBR13.5")
This patch removes UHBR13.5 support for icl/dg2.

Thanks and Regards,
Arun R Murthy
--------------------
> BR,
> Jani.
> 
> 
> --
> Jani Nikula, Intel