linux-kernel - Re: [PATCH 1/6] dt-bindings: soc: qcom: add YAML schema for SMD-RPM driver

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Date:   Wed, 15 Jul 2020 13:14:37 -0600
From:   Rob Herring <robh@...nel.org>
To:     Kathiravan T <kathirav@...eaurora.org>
Cc:     agross@...nel.org, bjorn.andersson@...aro.org, lgirdwood@...il.com,
        broonie@...nel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        sivaprak@...eaurora.org
Subject: Re: [PATCH 1/6] dt-bindings: soc: qcom: add YAML schema for SMD-RPM
 driver

On Fri, Jun 19, 2020 at 12:35:02PM +0530, Kathiravan T wrote:
> Add YAML schema for the devitree properties used in the SMD-RPM driver.

This is converting, not adding...

> 
> Signed-off-by: Kathiravan T <kathirav@...eaurora.org>
> ---
>  .../devicetree/bindings/soc/qcom/qcom,smd-rpm.txt  | 62 ---------------
>  .../devicetree/bindings/soc/qcom/qcom,smd-rpm.yaml | 91 ++++++++++++++++++++++
>  2 files changed, 91 insertions(+), 62 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,smd-rpm.txt
>  create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,smd-rpm.yaml


> diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,smd-rpm.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,smd-rpm.yaml
> new file mode 100644
> index 00000000..5b33def
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,smd-rpm.yaml
> @@ -0,0 +1,91 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/soc/qcom/qcom,smd-rpm.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: Qualcomm Resource Power Manager (RPM) over SMD
> +
> +description: |
> +  This driver is used to interface with the Resource Power Manager (RPM) found
> +  in various Qualcomm platforms. The RPM allows each component in the system
> +  to vote for state of the system resources, such as clocks, regulators and bus
> +  frequencies.
> +
> +  The SMD information for the RPM edge should be filled out.  See qcom,smd.txt
> +  for the required edge properties.  All SMD related properties will reside
> +  within the RPM node itself.
> +
> +  The RPM exposes resources to its subnodes.  The rpm_requests node must be
> +  present and this subnode may contain children that designate regulator
> +  resources.
> +
> +  Refer to Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.txt
> +  for information on the regulator subnodes that can exist under the
> +  rpm_requests.
> +
> +maintainers:
> +  - Kathiravan T <kathirav@...eaurora.org>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - qcom,rpm-apq8084
> +      - qcom,rpm-msm8916
> +      - qcom,rpm-msm8974
> +      - qcom,rpm-msm8976
> +      - qcom,rpm-msm8996
> +      - qcom,rpm-msm8998
> +      - qcom,rpm-sdm660
> +      - qcom,rpm-qcs404
> +
> +  qcom,smd-channels:
> +    $ref: /schemas/types.yaml#/definitions/string-array
> +    description: Channel name used for the RPM communication
> +    items:
> +      - const: rpm_requests
> +
> +if:
> +  properties:
> +    compatible:
> +      contains:
> +        enum:
> +          - qcom,rpm-apq8084
> +          - qcom,rpm-msm8916
> +          - qcom,rpm-msm8974
> +then:
> +  required:
> +    - qcom,smd-channels
> +
> +required:
> +  - compatible
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    soc {
> +        #address-cells = <1>;
> +        #size-cells = <1>;
> +        apcs: syscon@...11000 {
> +              compatible = "syscon";
> +              reg = <0xf9011000 0x1000>;
> +        };
> +    };

Drop this node. The use of 'syscon' alone is not valid and will now 
generate warnings with what I have queued for 5.9.

> +    smd {
> +        compatible = "qcom,smd";
> +
> +        rpm {
> +            interrupts = <0 168 1>;
> +            qcom,ipc = <&apcs 8 0>;
> +            qcom,smd-edge = <15>;
> +
> +                rpm_requests {
> +                        compatible = "qcom,rpm-msm8974";
> +                        qcom,smd-channels = "rpm_requests";
> +
> +                        /* Regulator nodes to follow */
> +                };
> +            };
> +     };
> +...
> -- 
> QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation
>