Hi Sergei,
On Wednesday, 21 February 2018 10:35:13 EET Sergei Shtylyov wrote:
> On 2/21/2018 2:10 AM, Laurent Pinchart wrote:
> > The Renesas R-Car Gen2 and Gen3 SoCs have internal LVDS encoders. Add
> > corresponding device tree bindings.
> >
> > Signed-off-by: Laurent Pinchart
> > <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
> > Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
> > ---
> > Changes since v1:
> >
> > - Move the SoC name before the IP name in compatible strings
> > - Rename parallel input to parallel RGB input
> > - Fixed "renesas,r8a7743-lvds" description
> > - Document the resets property
> > - Fixed typo
> > ---
> >
> > .../bindings/display/bridge/renesas,lvds.txt | 56 ++++++++++++++++
> > MAINTAINERS | 1 +
> > 2 files changed, 57 insertions(+)
> > create mode 100644
> > Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt>
> > diff --git
> > a/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt
> > b/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt new
> > file mode 100644
> > index 000000000000..2b19ce51ec07
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt
> > @@ -0,0 +1,56 @@
> > +Renesas R-Car LVDS Encoder
> > +==========================
> > +
> > +These DT bindings describe the LVDS encoder embedded in the Renesas R-Car
> > +Gen2, R-Car Gen3 and RZ/G SoCs.
> > +
> > +Required properties:
> > +
> > +- compatible : Shall contain one of
> > + - "renesas,r8a7743-lvds" for R8A7743 (RZ/G1M) compatible LVDS encoders
> > + - "renesas,r8a7790-lvds" for R8A7790 (R-Car H2) compatible LVDS
> > encoders
> > + - "renesas,r8a7791-lvds" for R8A7791 (R-Car M2-W) compatible LVDS
> > encoders + - "renesas,r8a7793-lvds" for R8A7791 (R-Car M2-N) compatible
> > LVDS encoders + - "renesas,r8a7795-lvds" for R8A7795 (R-Car H3)
> > compatible LVDS encoders + - "renesas,r8a7796-lvds" for R8A7796 (R-Car
> > M3-W) compatible LVDS encoders +
> > +- reg: Base address and length for the memory-mapped registers
> > +- clocks: A phandle + clock-specifier pair for the functional clock
> > +- resets: A phandle + reset specifier for the module reset
> > +
> > +Required nodes:
> > +
> > +The LVDS encoder has two video ports. Their connections are modelled
> > using the +OF graph bindings specified in
> > Documentation/devicetree/bindings/graph.txt. +
> > +- Video port 0 corresponds to the parallel RGB input
> > +- Video port 1 corresponds to the LVDS output
> > +
> > +Each port shall have a single endpoint.
> > +
> > +
> > +Example:
> > +
> > + lvds0: lvds@feb90000 {
>
> "lvds-encoder@feb90000" maybe?
Or just "encoder@feb90000" ? Or "display-encoder@feb90000" ? Rob, any
preference ?
> And do we need a # in the label if the encoder is alone in DT anyway?
As a matter of fact r8a7790, on which this example is based, has two LVDS
encoders. I've only included one in the example as adding a second one
wouldn't have added any value.
> [...]
--
Regards,
Laurent Pinchart
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