[PATCH v3 1/6] dt-bindings: display: bridge: Add YAML schema for Synopsys DW-HDMI

[Rob Herring]

On Tue, Jan 05, 2021 at 08:08:13AM +0200, Laurent Pinchart wrote:
> Add a .yaml schema containing the common properties for the Synopsys
> DesignWare HDMI TX controller. This isn't a full device tree binding
> specification, but is meant to be referenced by platform-specific
> bindings for the IP core.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com>
> ---
> Changes since v1:
> 
> - Add default to reg-io-width property
> - Add additionalProperties
> - Rebase on top of OF graph schema, dropped redundant properties
> - Drop cec clock as it's device-specific
> - Increase max clocks to 5 to accommodate the Rockchip DW-HDMI
> ---
>  .../display/bridge/synopsys,dw-hdmi.yaml      | 58 +++++++++++++++++++
>  1 file changed, 58 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml
> 
> diff --git a/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml b/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml
> new file mode 100644
> index 000000000000..96c4bc06dbe7
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml
> @@ -0,0 +1,58 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/bridge/synopsys,dw-hdmi.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Common Properties for Synopsys DesignWare HDMI TX Controller
> +
> +maintainers:
> +  - Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com>
> +
> +description: |
> +  This document defines device tree properties for the Synopsys DesignWare HDMI
> +  TX controller (DWC HDMI TX) IP core. It doesn't constitute a full device tree
> +  binding specification by itself but is meant to be referenced by device tree
> +  bindings for the platform-specific integrations of the DWC HDMI TX.
> +
> +  When referenced from platform device tree bindings the properties defined in
> +  this document are defined as follows. The platform device tree bindings are
> +  responsible for defining whether each property is required or optional.
> +
> +properties:
> +  reg:
> +    maxItems: 1
> +
> +  reg-io-width:
> +    description:
> +      Width (in bytes) of the registers specified by the reg property.
> +    allOf:
> +      - $ref: /schemas/types.yaml#/definitions/uint32
> +      - enum: [1, 4]
> +    default: 1
> +
> +  clocks:
> +    minItems: 2
> +    maxItems: 5
> +    items:
> +      - description: The bus clock for either AHB and APB
> +      - description: The internal register configuration clock
> +    additionalItems: true
> +
> +  clock-names:
> +    minItems: 2
> +    maxItems: 5
> +    items:
> +      - const: iahb
> +      - const: isfr
> +    additionalItems: true
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  ports:
> +    $ref: /schemas/graph.yaml#/properties/ports

'ports' should probably be dropped if what each 'port' is is not defined 
here. Any users will have to define 'ports' and the child nodes.

Reviewed-by: Rob Herring <robh at kernel.org>

> +
> +additionalProperties: true
> +
> +...
> -- 
> Regards,
> 
> Laurent Pinchart
>