linux-kernel - Re: [PATCH v4] dt-bindings: qcom: document preferred compatible naming

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Message-ID: <3f4f62da-302f-c6cb-0c32-73f4e36e5022@linaro.org>
Date:   Wed, 6 Jul 2022 08:55:18 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Rob Herring <robh@...nel.org>
Cc:     Vinod Koul <vkoul@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Andy Gross <agross@...nel.org>, devicetree@...r.kernel.org,
        Robert Foss <robert.foss@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        linux-arm-msm@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Alex Elder <elder@...aro.org>,
        Bhupesh Sharma <bhupesh.sharma@...aro.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        linux-kernel@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@...ainline.org>
Subject: Re: [PATCH v4] dt-bindings: qcom: document preferred compatible
 naming

On 05/07/2022 21:18, Rob Herring wrote:
> On Tue, 05 Jul 2022 18:13:01 +0200, Krzysztof Kozlowski wrote:
>> Compatibles can come in two formats.  Either "vendor,ip-soc" or
>> "vendor,soc-ip".  Qualcomm bindings were mixing both of usages, so add a
>> DT schema file documenting preferred policy and enforcing it for all new
>> compatibles, except few existing patterns.
>>
>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
>>
>> ---
>>
>> Changes since v3:
>> 1. Add qcom,kpss-wdt-xxx to pattern for exceptions.
>> 2. Add ipq806x entries to list of exceptions.
>>
>> Changes since v2:
>> 1. Narrow the expected pattern to be followed by dash '-' after model
>>    number (msm8996-) or by two letters and a dash (sc8280xp-).
>> 2. Add qcom,apss-wdt-xxx to list of exceptions.
>> 3. Use comment instead of description in the oneOf list.
>>
>> Changes since v1:
>> 1. Add schema instead of readme (Rob).
>>
>> Cc: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
>> Cc: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
>> Cc: Vinod Koul <vkoul@...nel.org>
>> Cc: Alex Elder <elder@...aro.org>
>> Cc: Robert Foss <robert.foss@...aro.org>
>> Cc: Bhupesh Sharma <bhupesh.sharma@...aro.org>
>> ---
>>  .../devicetree/bindings/arm/qcom-soc.yaml     | 63 +++++++++++++++++++
>>  1 file changed, 63 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/arm/qcom-soc.yaml
>>
> 
> My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
> on your patch (DT_CHECKER_FLAGS is new in v5.13):
> 
> yamllint warnings/errors:
> 
> dtschema/dtc warnings/errors:
> /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/cpufreq/qcom-cpufreq-nvmem.example.dtb: /: compatible: 'oneOf' conditional failed, one must be fixed:
> 	'qcom,qcs404' does not match '^qcom,(apq|ipq|mdm|msm|qcs|sa|sc|sdm|sdx|sm)[0-9]+-.*$'
> 	'qcom,qcs404' does not match '^qcom,(sa|sc)8[0-9]+[a-z][a-z]?-.*$'
> 	'qcom,qcs404' does not match '^qcom,[ak]pss-wdt-(apq|ipq|mdm|msm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$'
> 	'qcom,qcs404' does not match '^qcom,gcc-(apq|ipq|mdm|msm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$'
> 	'qcom,qcs404' does not match '^qcom,mmcc-(apq|ipq|mdm|msm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$'
> 	'qcom,qcs404' does not match '^qcom,pcie-(apq|ipq|mdm|msm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$'
> 	'qcom,qcs404' does not match '^qcom,rpm-(apq|ipq|mdm|msm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$'
> 	'qcom,qcs404' does not match '^qcom,scm-(apq|ipq|mdm|msm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$'
> 	'qcom,qcs404' is not one of ['qcom,gpucc-sdm630', 'qcom,gpucc-sdm660', 'qcom,lcc-apq8064', 'qcom,lcc-ipq8064', 'qcom,lcc-mdm9615', 'qcom,lcc-msm8960', 'qcom,lpass-cpu-apq8016', 'qcom,usb-ss-ipq4019-phy', 'qcom,usb-hs-ipq4019-phy', 'qcom,vqmmc-ipq4019-regulator']
> 	'qcom,qcs404' is not one of ['qcom,ipq806x-nand', 'qcom,ipq806x-usb-phy-ss', 'qcom,ipq806x-usb-phy-hs']
> 	From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/arm/qcom-soc.yaml
> 

This is fixed by:
https://lore.kernel.org/all/20220627143340.477120-1-krzysztof.kozlowski@linaro.org/
https://lore.kernel.org/all/20220628092253.21905-1-krzysztof.kozlowski@linaro.org/



Best regards,
Krzysztof