From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jean-Francois Moine Subject: Re: [PATCH v7 4/8] drm/sunxi: Add DT bindings documentation of Allwinner HDMI Date: Tue, 29 Nov 2016 21:04:55 +0100 Message-ID: <20161129210455.d0c8450d3ceb83c1abe521b0@free.fr> References: <5996605.Gh0PjPIAcn@avalon> <20161129202751.e94f72a1b9e2c2fb064e9933@free.fr> <6356753.Ekaj7GdA0W@avalon> Reply-To: moinejf-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Return-path: Sender: linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org In-Reply-To: <6356753.Ekaj7GdA0W@avalon> List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , To: Laurent Pinchart Cc: dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, Dave Airlie , Maxime Ripard , Rob Herring , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: devicetree@vger.kernel.org On Tue, 29 Nov 2016 21:33 +0200 Laurent Pinchart wrote: > > > You need a third port for the HDMI encoder output, connected to an HD= MI > > > connector DT node. > >=20 > > I don't see what you mean. The HDMI device is both the encoder > > and connector (as the TDA998x): >=20 > The driver might create both an encoder and a connector, but I very much = doubt=20 > that the "allwinner,sun8i-a83t-hdmi" hardware contains a connector, unles= s the=20 > SoC package has an HDMI connector coming out of it :-) >=20 > > 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? --=20 Ken ar c'henta=C3=B1 | ** Breizh ha Linux atav! ** Jef | http://moinejf.free.fr/ --=20 You received this message because you are subscribed to the Google Groups "= linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an e= mail to linux-sunxi+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit https://groups.google.com/d/optout.