On Mon, Dec 9, 2019 at 11:32 PM Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> wrote: > Hi Laurent, > You may have used a proportional font when writing this, the | doesn't > align with anything using a fixed font. Do I assume correctly that the > hardware multiplexer is actually a demultiplexer with one input and two > outputs ? > +-----------+ > +---------+ +------+ /--> | HDMI | > | MT8173 | HDMI | -->| --/ | Connector | > | HDMI | ------> |--/ | +-----------+ > | Encoder | | ->| --\ +-----------+ +-----------+ > +---------+ +------+ \--> | ANX7688 | ---> | USB-C | > | Bridge | | Connector | > +-----------+ +-----------+ > Sorry for not noticing the font issue, this graph is correct. > > There's a hardware mux that takes mt8173 hdmi as input and has 2 > > output port: native hdmi and anx7688 bridge. > > If gpio is active, we would like it to go to HDMI. > > > > Previous approach is to make hardware mux a generic gpio mux bridge, > > but this is probably a very rare use case that is only for > > mt8173.(https://lore.kernel.org/lkml/57723AD2.8020806@xxxxxxxxxxxxxx/) > > We merge the mux and anx7688 to a single bridge and leave this as an > > optional feature in this time. > > I think that's a better approach, at least at the DT level. The HDMI > demultiplexer should be represented as a DT node with 3 ports (one input > and two outputs) with a control GPIO. > I've resend the original gpio mux driver. So for anx7688 there's 1 input and 1 output. Thanks _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
