linux-kernel - Re: [PATCH 2/3] dt-bindings: soc: qcom: aoss: Convert to YAML

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Date:   Mon, 28 Jun 2021 20:19:08 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Andy Gross <agross@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Sibi S <sibis@...eaurora.org>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] dt-bindings: soc: qcom: aoss: Convert to YAML

On Fri, Jun 25, 2021 at 04:40:17PM -0700, Bjorn Andersson wrote:
> Convert to YAML in order to allow validation.
> 
> Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> ---
> 
> I'm aware that this conflicts with Sibi's removal of '#power-domain-cells', but
> that's a trivial change regardless of which of the two patches gets in first.
> 
>  .../bindings/soc/qcom/qcom,aoss-qmp.txt       |  90 --------------
>  .../bindings/soc/qcom/qcom,aoss-qmp.yaml      | 115 ++++++++++++++++++
>  2 files changed, 115 insertions(+), 90 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt
>  create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.yaml
> 

[...]

> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - mboxes
> +  - "#clock-cells"

The old binding lists this property as optional but you're marking it
as required. And by looking at the driver it seems to be optional only.

> +  - "#power-domain-cells"

This one was marked optional as well but the driver registers the pd's
unconditionally, so I guess it is fine.

Thanks,
Mani

> +
> +additionalProperties: false
> +
> +patternProperties:
> +  "^(cx|mx|ebi)$":
> +    type: object
> +    description:
> +      The AOSS side channel also provides the controls for three cooling devices,
> +      these are expressed as subnodes of the QMP node. The name of the node is
> +      used to identify the resource and must therefor be "cx", "mx" or "ebi".
> +
> +    properties:
> +      "#cooling-cells":
> +        const: 2
> +
> +    required:
> +      - "#cooling-cells"
> +
> +    additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> +    aoss_qmp: qmp@...0000 {
> +      compatible = "qcom,sdm845-aoss-qmp", "qcom,aoss-qmp";
> +      reg = <0x0c300000 0x100000>;
> +      interrupts = <GIC_SPI 389 IRQ_TYPE_EDGE_RISING>;
> +      mboxes = <&apss_shared 0>;
> +
> +      #clock-cells = <0>;
> +      #power-domain-cells = <1>;
> +
> +      cx_cdev: cx {
> +        #cooling-cells = <2>;
> +      };
> +
> +      mx_cdev: mx {
> +        #cooling-cells = <2>;
> +      };
> +    };
> +...
> -- 
> 2.29.2
>