Re: [PATCH 2/3] drm/i915: Check timings against hardware maximums

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Quoting Ville Syrjala (2018-06-15 18:44:05)
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> 
> Validate that all display timings fit within the number of bits
> we have in the transcoder timing registers.
> 
> The limits are:
> hsw+:
>  4k: vdisplay, vblank_start
>  8k: everything else
> gen3+:
>  4k: h/vdisplay, h/vblank_start
>  8k: everything else
> gen2:
>  2k: h/vdisplay, h/vblank_start
>  4k: everything else
> 
> Also document the fact that the mode_config.max_width/height limits
> refer to just the max framebuffer dimensions we support. Which may
> be larger than the max hdisplay/vdisplay.

In the ddx, I used them to filter max hdisplay/vdisplay... And
completely ignored them wrt to framebuffer.
-Chris
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