linux-kernel - Re: [PATCH v1 1/5] dt-bindings: soc: qcom: Add memory

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Message-ID: <27fcdcc1-b29b-43b2-8b1a-c648dd9e696c@linaro.org>
Date:   Mon, 23 Oct 2023 11:27:01 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Zhenhua Huang <quic_zhenhuah@...cinc.com>, agross@...nel.org,
        andersson@...nel.org, konrad.dybcio@...aro.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel@...cinc.com,
        quic_tingweiz@...cinc.com
Subject: Re: [PATCH v1 1/5] dt-bindings: soc: qcom: Add memory_dump driver
 bindings

On 23/10/2023 11:20, Zhenhua Huang wrote:
> Add bindings for the QCOM Memory Dump driver providing debug

Bindings are for hardware, not driver. This suggests it is not suitable
for bindings at all.

> facilities. Firmware dumps system cache, internal memory,
> peripheral registers to reserved DDR as per the table which
> populated by the driver, after crash and warm reset.

Again driver :/

> 
> Signed-off-by: Zhenhua Huang <quic_zhenhuah@...cinc.com>
> ---
>  .../bindings/soc/qcom/qcom,mem-dump.yaml           | 42 +++++++++++++++++++++
>  .../devicetree/bindings/sram/qcom,imem.yaml        | 44 ++++++++++++++++++++++
>  2 files changed, 86 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,mem-dump.yaml
> 
> diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,mem-dump.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,mem-dump.yaml
> new file mode 100644
> index 0000000..87f8f51
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,mem-dump.yaml
> @@ -0,0 +1,42 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/soc/qcom/qcom,mem-dump.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"

Drop quotes.

It does not look like you tested the bindings, at least after quick
look. Please run `make dt_binding_check` (see
Documentation/devicetree/bindings/writing-schema.rst for instructions).
Maybe you need to update your dtschema and yamllint.

> +
> +title: Qualcomm memory dump

Describe hardware, not driver.

> +
> +description: |
> +  Qualcomm memory dump driver dynamically reserves memory and provides hints(id and size)

Again, driver, so not suitable for DTS and bindings.

Best regards,
Krzysztof