[PATCH v7 4/8] drm/sunxi: Add DT bindings documentation of Allwinner HDMI

[moinejf@free.fr (Jean-Francois Moine)]

On Tue, 29 Nov 2016 21:33 +0200
Laurent Pinchart <laurent.pinchart@ideasonboard.com> wrote:

> > > You need a third port for the HDMI encoder output, connected to an HDMI
> > > connector DT node.
> > 
> > I don't see what you mean. The HDMI device is both the encoder
> > and connector (as the TDA998x):
> 
> The driver might create both an encoder and a connector, but I very much doubt 
> that the "allwinner,sun8i-a83t-hdmi" hardware contains a connector, unless the 
> SoC package has an HDMI connector coming out of it :-)
> 
> > plane -> DE2 mixer ---> TCON -----> HDMI -----> display device
> > ----- plane ------    - CRTC -   - encoder  \
> >                                    connector -- (HDMI cable)
> >          audio-controller -   - audio-codec /

The schema is the same as the Dove Cubox: the TDA998x is just a chip
with some wires going out and the physical connector is supposed to be
at the end of the wires.

Here, the HDMI pins of the SoC go to a pure hardware chip and then to
the physical connector. Which software entity do you want to add?

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