On Tue, Nov 5, 2019 at 3:33 AM Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx> wrote: > > Hello Rob, > > Thank you for your feedback! > > > From: Rob Herring <robh+dt@xxxxxxxxxx> > > Sent: 04 November 2019 21:23 > > Subject: Re: [PATCH v2 2/4] dt-bindings: display: bridge: Repurpose lvds-encoder > > > > On Mon, Nov 4, 2019 at 10:58 AM Fabrizio Castro > > <fabrizio.castro@xxxxxxxxxxxxxx> wrote: > > > > > > In an effort to repurpose lvds-encoder.c to also serve the > > > function of LVDS decoders, we ended up defining a new "generic" > > > compatible string, therefore adapt the dt-bindings to fit the > > > new purpose. Also, convert the dt-bindings from .txt to .yaml > > > while at it. > > > > "Also, ... while at it." is a sign for split into 2 patches. > > Will split into 2 patches > > > > > > Signed-off-by: Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx> > > > > > > --- > > > v1->v2: > > > * Converted to dt-schema as per Neil's comment > > > --- > > > .../bindings/display/bridge/lvds-codec.yaml | 117 +++++++++++++++++++++ > > > .../bindings/display/bridge/lvds-transmitter.txt | 66 ------------ > > > 2 files changed, 117 insertions(+), 66 deletions(-) > > > create mode 100644 Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml > > > delete mode 100644 Documentation/devicetree/bindings/display/bridge/lvds-transmitter.txt > > > > > > diff --git a/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml > > b/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml > > > new file mode 100644 > > > index 0000000..ff79bc2 > > > --- /dev/null > > > +++ b/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml > > > @@ -0,0 +1,117 @@ > > > +# SPDX-License-Identifier: GPL-2.0 > > > +%YAML 1.2 > > > +--- > > > +$id: http://devicetree.org/schemas/display/bridge/lvds-codec.yaml# > > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > > + > > > +title: Trasnparent LVDS encoders and LVDS decoders > > > > Typo > > Will fix > > > > > > + > > > +maintainers: > > > + - Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx> > > > + > > > +description: | > > > + This binding supports transparent LVDS encoders and LVDS decoders that don't > > > + require any configuration. > > > + > > > + LVDS is a physical layer specification defined in ANSI/TIA/EIA-644-A. Multiple > > > + incompatible data link layers have been used over time to transmit image data > > > + to LVDS panels. This binding targets devices compatible with the following > > > + specifications only. > > > + > > > + [JEIDA] "Digital Interface Standards for Monitor", JEIDA-59-1999, February > > > + 1999 (Version 1.0), Japan Electronic Industry Development Association (JEIDA) > > > + [LDI] "Open LVDS Display Interface", May 1999 (Version 0.95), National > > > + Semiconductor > > > + [VESA] "VESA Notebook Panel Standard", October 2007 (Version 1.0), Video > > > + Electronics Standards Association (VESA) > > > + > > > + Those devices have been marketed under the FPD-Link and FlatLink brand names > > > + among others. > > > + > > > +properties: > > > + compatible: > > > + description: | > > > + Any encoder or decoder compatible with this generic binding, but with > > > + additional properties not listed here, must define its own binding and > > > + list a device specific compatible first followed by the generic compatible > > > + items: > > > + - enum: > > > > You can drop 'items' when there's only 1. > > Will drop > > > > > > + - lvds-encoder # for LVDS encoders > > > + - lvds-decoder # for LVDS decoders > > > + > > > + ports: > > > + type: object > > > + description: | > > > + This device has two video ports. Their connections are modeled using the > > > + OF graph bindings specified in Documentation/devicetree/bindings/graph.txt > > > + properties: > > > + port@0: > > > + type: object > > > + description: | > > > + With LVDS encoders port 0 is for parallel input > > > + With LVDS decoders port 0 is for LVDS input > > > + > > > + port@1: > > > + type: object > > > + description: | > > > + With LVDS encoders port 1 is for LVDS output > > > + With LVDS decoders port 1 is for parallel output > > > > port@* are required, right? > > Yes, port@0 and port@1 are both required, similarly to: > Documentation/devicetree/bindings/display/st,stm32-dsi.yaml > therefore I have put "ports" under "required", in a similar fashion. > What's the right way of specifying this? Same as any other property: required: - port@0 - port@1 At the correct level of course. Rob
