Re: HDMI 4k support v2

Simon Farnsworth
2013-08-14T09:43:13Z

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On Wednesday 14 August 2013 00:17:16 Damien Lespiau wrote:
> Following up the first instance of this series:
> http://lists.freedesktop.org/archives/dri-devel/2013-August/043125.html
>
> Here is a v2 with Ville's review pass and a few additions:
> - Alternate clock modes for 4k resolutions
> - HDMI vendor specific infoframe support in drivers/video/hdmi.c
> - Enabling of those vendor specific infoframes in the i915 driver
>
> Along the way, a tegra patch was needed for a small consolidation of the code
> packing vendor specific infoframes. This patch has only been compile-tested.
>
> On Intel, it's possible to read back the programmed infoframe buffers with
> intel-gpu-tools' intel_infoframe and this gives:
>
> Vendor InfoFrame:
> - frequency: every vsync
> - raw:
> f4050181 000c0347 00000320 00000000
> 00000000 00000000 00000000 00000000
> 0000004c 00000000 00000000 00000000
> 00000000 00000000 00000000 00000000
> - vendor Id: 0x000c03 (HDMI)
> - video format: 0x001
> - HDMI VIC: 3
>
> after a $ xrandr --output HDMI1 --mode 3840x2160 -r 24
>
>
With the typos fixed, feel free to add:

Reviewed-by: Simon Farnsworth <simon.farnsworth@onelan.co.uk>
--
Simon Farnsworth
Software Engineer
ONELAN Ltd
http://www.onelan.com

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