linux-kernel - Re: [PATCH 1/2] dt-bindings: drm/bridge: MHDP8546 bridge binding changes for HDCP

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Date:   Fri, 26 Feb 2021 17:36:11 +0100
From:   Robert Foss <robert.foss@...aro.org>
To:     Parshuram Thombare <pthombar@...ence.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Neil Armstrong <narmstrong@...libre.com>, nikhil.nd@...com,
        kishon@...com, sjakhade@...ence.com, mparab@...ence.com
Subject: Re: [PATCH 1/2] dt-bindings: drm/bridge: MHDP8546 bridge binding
 changes for HDCP

Hey Parshuram,

Thanks for submitting this.

This series rebased on upstream-drm-misc/for-linux-next fails dt
binding verification.
$ make dt_binding_check
DT_SCHEMA_FILES=Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml


On Fri, 26 Feb 2021 at 17:18, Parshuram Thombare <pthombar@...ence.com> wrote:
>
> Add binding changes for HDCP in the MHDP8546 DPI/DP bridge binding.
>
> Signed-off-by: Parshuram Thombare <pthombar@...ence.com>
> ---
>  .../display/bridge/cdns,mhdp8546.yaml         | 20 +++++++++++++------
>  1 file changed, 14 insertions(+), 6 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml
> index 63427878715e..89b4bf783c53 100644
> --- a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml
> +++ b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8546.yaml
> @@ -18,7 +18,7 @@ properties:
>
>    reg:
>      minItems: 1
> -    maxItems: 2
> +    maxItems: 3
>      items:
>        - description:
>            Register block of mhdptx apb registers up to PHY mapped area (AUX_CONFIG_P).
> @@ -26,13 +26,16 @@ properties:
>            included in the associated PHY.
>        - description:
>            Register block for DSS_EDP0_INTG_CFG_VP registers in case of TI J7 SoCs.
> +      - description:
> +          Register block of mhdptx sapb registers.
>
>    reg-names:
>      minItems: 1
> -    maxItems: 2
> +    maxItems: 3
>      items:
>        - const: mhdptx
>        - const: j721e-intg
> +      - const: mhdptx-sapb

The reg & reg-names changes appear to be introducing the failure.

>
>    clocks:
>      maxItems: 1
> @@ -53,6 +56,11 @@ properties:
>    power-domains:
>      maxItems: 1
>
> +  hdcp-config:
> +    maxItems: 1
> +    description:
> +      HDCP version supported. Bit [0]:HDCP2.2 [1]:HDCP1.4.
> +
>    interrupts:
>      maxItems: 1
>
> @@ -98,15 +106,15 @@ allOf:
>      then:
>        properties:
>          reg:
> -          minItems: 2
> +          minItems: 3
>          reg-names:
> -          minItems: 2
> +          minItems: 3
>      else:
>        properties:
>          reg:
> -          maxItems: 1
> +          maxItems: 2
>          reg-names:
> -          maxItems: 1
> +          maxItems: 2
>
>  required:
>    - compatible
> --
> 2.25.1
>