linux-kernel - Re: [PATCH V6 1/7] dt-bindings: Added the yaml bindings for DCC

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Date:   Mon, 13 Dec 2021 16:35:57 -0600
From:   Alex Elder <elder@...e.org>
To:     Souradeep Chowdhury <schowdhu@...eaurora.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.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,
        Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>,
        Sibi Sankar <sibis@...eaurora.org>,
        Rajendra Nayak <rnayak@...eaurora.org>, vkoul@...nel.org
Subject: Re: [PATCH V6 1/7] dt-bindings: Added the yaml bindings for DCC

On 8/10/21 12:54 PM, Souradeep Chowdhury wrote:
> Documentation for Data Capture and Compare(DCC) device tree bindings
> in yaml format.

Even though Rob has already reviewed this...  I think it
would be nice if you gave these memory regions names, such
as "config" for the first one and "sram" or something for
the second one.  It's a little more descriptive than just
looking them up using their positions.

					-Alex

> Reviewed-by: Rob Herring <robh@...nel.org>
> Signed-off-by: Souradeep Chowdhury <schowdhu@...eaurora.org>
> ---
>   .../devicetree/bindings/arm/msm/qcom,dcc.yaml      | 43 ++++++++++++++++++++++
>   1 file changed, 43 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/arm/msm/qcom,dcc.yaml
> 
> diff --git a/Documentation/devicetree/bindings/arm/msm/qcom,dcc.yaml b/Documentation/devicetree/bindings/arm/msm/qcom,dcc.yaml
> new file mode 100644
> index 0000000..b7a6619
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/msm/qcom,dcc.yaml
> @@ -0,0 +1,43 @@
> +# SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/arm/msm/qcom,dcc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Data Capture and Compare
> +
> +maintainers:
> +  - Souradeep Chowdhury <schowdhu@...eaurora.org>
> +
> +description: |
> +    DCC (Data Capture and Compare) is a DMA engine which is used to save
> +    configuration data or system memory contents during catastrophic failure
> +    or SW trigger. DCC is used to capture and store data for debugging purpose
> +properties:
> +  compatible:
> +    items:
> +      - enum:
> +          - qcom,sm8150-dcc
> +          - qcom,sc7280-dcc
> +          - qcom,sc7180-dcc
> +          - qcom,sdm845-dcc
> +      - const: qcom,dcc
> +
> +  reg:
> +    items:
> +      - description: DCC base register region
> +      - description: DCC RAM base register region
> +
> +required:
> +  - compatible
> +  - reg
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    dma@...2000{
> +                compatible = "qcom,sm8150-dcc","qcom,dcc";
> +                reg = <0x010a2000  0x1000>,
> +                      <0x010ad000  0x2000>;
> +    };
>