[PATCH v2 3/6] dt-bindings: display: imx: hdmi: Convert binding to YAML

[Philipp Zabel]

On Sun, 2020-12-20 at 21:50 +0200, Laurent Pinchart wrote:
> Convert the i.MX6 HDMI TX text binding to YAML.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com>
> ---
> Changes since v1:
> 
> - Only specify maxItems for clocks
> - Drop reg and interrupts as they're checked in the base schema
> - Rebase on top of OF graph schema, dropped redundant properties
> - Fix identation for enum entries
> - Drop clock-names items, use maxItems only
> ---
>  .../bindings/display/imx/fsl,imx6-hdmi.yaml   | 130 ++++++++++++++++++
>  .../devicetree/bindings/display/imx/hdmi.txt  |  65 ---------
>  2 files changed, 130 insertions(+), 65 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/display/imx/fsl,imx6-hdmi.yaml
>  delete mode 100644 Documentation/devicetree/bindings/display/imx/hdmi.txt
> 
> diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx6-hdmi.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx6-hdmi.yaml
> new file mode 100644
> index 000000000000..f9b131bb3339
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/imx/fsl,imx6-hdmi.yaml
> @@ -0,0 +1,130 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/imx/fsl,imx6-hdmi.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Freescale i.MX6 DWC HDMI TX Encoder
> +
> +maintainers:
> +  - Philipp Zabel <p.zabel at pengutronix.de>
> +
> +description: |
> +  The HDMI transmitter is a Synopsys DesignWare HDMI 1.4 TX controller IP
> +  with a companion PHY IP.
> +
> +allOf:
> +  - $ref: ../bridge/synopsys,dw-hdmi.yaml#
> +
> +properties:
> +  compatible:
> +    enum:
> +      - fsl,imx6dl-hdmi
> +      - fsl,imx6q-hdmi
> +
> +  reg-io-width:
> +    const: 1
> +
> +  clocks:
> +    maxItems: 2
> +
> +  clock-names:
> +    maxItems: 2
> +
> +  ddc-i2c-bus:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description:
> +      The HDMI DDC bus can be connected to either a system I2C master or the
> +      functionally-reduced I2C master contained in the DWC HDMI. When connected
> +      to a system I2C master this property contains a phandle to that I2C
> +      master controller.
> +
> +  gpr:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description:
> +      phandle to the iomuxc-gpr region containing the HDMI multiplexer control
> +      register.
> +
> +  ports:
> +    $ref: /schemas/graph.yaml#/properties/ports
> +    description: |
> +      This device has four video ports, corresponding to the four inputs of the
> +      HDMI multiplexer. Each port shall have a single endpoint.
> +
> +    properties:
> +      port at 0:
> +        $ref: /schemas/graph.yaml#/$defs/port-base
> +        unevaluatedProperties: false
> +        description: First input of the HDMI multiplexer
> +
> +      port at 1:
> +        $ref: /schemas/graph.yaml#/$defs/port-base
> +        unevaluatedProperties: false
> +        description: Second input of the HDMI multiplexer
> +
> +      port at 2:
> +        $ref: /schemas/graph.yaml#/$defs/port-base
> +        unevaluatedProperties: false
> +        description: Third input of the HDMI multiplexer
> +
> +      port at 3:
> +        $ref: /schemas/graph.yaml#/$defs/port-base
> +        unevaluatedProperties: false
> +        description: Fourth input of the HDMI multiplexer
> +
> +    anyOf:
> +      - required:
> +          - port at 0
> +      - required:
> +          - port at 1
> +      - required:
> +          - port at 2
> +      - required:
> +          - port at 3
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - gpr
> +  - interrupts
> +  - ports

Won't this break validation of current i.MX6 DTs, which don't use the
ports node (in imx6q(dl).dtsi)?

regards
Philipp