Re: [PATCH] drm/edid: Reduce horizontal timings for pixel replicated modes

[Daniel Vetter <daniel@ffwll.ch>]

On Mon, Aug 18, 2014 at 02:02:14PM -0700, clinton.a.taylor@intel.com wrote:
> From: Clint Taylor <clinton.a.taylor@intel.com>
> 
> Pixel replicated modes should be 720 horizontal pixel and pixel
> replicated by the HW across the HDMI cable at 2X pixel clock. Current
> horizontal resolution of 1440 does not allow pixel duplication to
> occur and scaling artifacts occur on the TV. HDMI certification
> 7-26 currently fails for all pixel replicated modes. This change fizes
> the HDMI certification issues with 480i/576i.
> 
> V2: Removed interlace flag from VICs 44 and 45. Will be submitted in
> another patch. Various other formatting fixes.
> 
> Signed-off-by: Clint Taylor <clinton.a.taylor@intel.com>
> ---
>  drivers/gpu/drm/drm_edid.c        |   96 ++++++++++++++++++-------------------
>  drivers/gpu/drm/i915/intel_hdmi.c |   10 +++-

I think the i915 side of this double-clock support should be split out
into a separate patch. Makes it easier for people to spot that there's
some driver work to enable this properly.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch