Re: [PATCH 4/7] drm/exynos/hdmi: add bridge support

[Andrzej Hajda]

On 01.02.2017 08:44, Inki Dae wrote:
>
> 2017ë 02ì 01ì 16:34ì Andrzej Hajda ì(ê) ì ê:
>> On 01.02.2017 08:31, Inki Dae wrote:
>>> 2017ë 01ì 20ì 15:52ì Andrzej Hajda ì(ê) ì ê:
>>>> In some platforms there is attached another device to the end of HDMI.
>>>> The patch adds support for it.
>>> Andrzej, can you clarify what bridge device can be attached and actually is now attached to the end of HDMI?
>>> And I wonder if we have the device tree file which defines the bridge device in mainline. Seems we have no the device tree file.
>>>
>>> If nothing, then this patch should be merged with real use case.
>> SiI8620 MHL bridge in tm2/tm2e.
> Did you post dt patch to add the properties related to SiI8620 MHL bridge device?
>
> I see below patch series,
> [PATCH 00/24] drm/bridge/sii8620: add Ultra HD modes support
>
> but I couldn't find dt patch for it. And specifying SiI8620 MHL bridge device as description would be needed.
>
> Thanks.
>
>

Patch adding HDMI path to tm2(e) including SiI8620 node and OF bindings
between hdmi and SiI8620 [1].
As the bridge framework in lower modes was used only to eliminate
unsupported modes, support for bridge in exynos_hdmi driver was not
critical, HDMI path worked well and I forgot about it.
But for UltraHD modes it is required as SiI8620 uses bridge framework to
gather info about applied video mode to program registers accordingly.
I will add requested description to this patch.

[1]: http://www.spinics.net/lists/devicetree/msg157892.html

Regards
Andrzej