linux-kernel - Re: [PATCH V1 2/4] dt-bindings: soc: qcom,mpm-sleep-counter: Add the dtschema

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Message-ID: <fc46c48d-2de0-ba3a-08b0-a09526bd9e26@linaro.org>
Date:   Tue, 21 Mar 2023 18:33:18 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Souradeep Chowdhury <quic_schowdhu@...cinc.com>,
        Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        Sibi Sankar <quic_sibis@...cinc.com>,
        Rajendra Nayak <quic_rjendra@...cinc.com>
Subject: Re: [PATCH V1 2/4] dt-bindings: soc: qcom,mpm-sleep-counter: Add the
 dtschema

On 21/03/2023 14:51, Souradeep Chowdhury wrote:
> Add the device tree bindings for the module power manager sleep
> counter.
> 
> Signed-off-by: Souradeep Chowdhury <quic_schowdhu@...cinc.com>
> ---
>  .../bindings/soc/qcom/qcom,mpm-sleep-counter.yaml  | 40 ++++++++++++++++++++++
>  1 file changed, 40 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,mpm-sleep-counter.yaml
> 
> diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,mpm-sleep-counter.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,mpm-sleep-counter.yaml
> new file mode 100644
> index 0000000..f9f46b7
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,mpm-sleep-counter.yaml
> @@ -0,0 +1,40 @@
> +# SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/qcom/qcom,mpm-sleep-counter.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MPM Sleep Counter
> +
> +maintainers:
> +  - Souradeep Chowdhury <quic_schowdhu@...cinc.com>
> +
> +description: |
> +    MPM(Module Power Manager) has a sleep counter which is used to track

Missing space:
MPM (Module

> +    various stages of the boot process in Qualcomm.

in Qualcomm SoC. Because you do not track it in the company...

> +
> +properties:
> +  compatible:
> +    items:

Drop items.

> +      - const: qcom,mpm2-sleep-counter

SoC specific compatible.

> +
> +  reg:
> +    items:
> +      - description: MPM Sleep Counter Base

just maxItems: 1

> +
> +  clock-frequency:
> +    description: Frequency for the sleep counter

Since this does not have clocks, what frequency you are setting here?

> +
> +required:
> +  - compatible
> +  - reg
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    mpm2-sleep-counter@...1000{

Node names should be generic.
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation

> +       compatible = "qcom,mpm2-sleep-counter";
> +       reg = <0xc221000 0x1000>;
> +       clock-frequency = <32768>;
> +    };

Best regards,
Krzysztof