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Date:   Tue, 5 Jul 2022 19:19:46 +0200
From:   Stephan Gerhold <stephan@gerhold.net>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Cc:     Andy Gross <agross@kernel.org>,
        Bjorn Andersson <bjorn.andersson@linaro.org>,
        Konrad Dybcio <konrad.dybcio@somainline.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
        Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
        Vinod Koul <vkoul@kernel.org>, Alex Elder <elder@linaro.org>,
        Robert Foss <robert.foss@linaro.org>,
        Bhupesh Sharma <bhupesh.sharma@linaro.org>
Subject: Re: [PATCH v4] dt-bindings: qcom: document preferred compatible
 naming
Message-ID: <YsRysg0Wm97iOgWo@gerhold.net>
References: <20220705161301.493364-1-krzysztof.kozlowski@linaro.org>
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On Tue, Jul 05, 2022 at 06:13:01PM +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@linaro.org>
[...]
> diff --git a/Documentation/devicetree/bindings/arm/qcom-soc.yaml b/Documentation/devicetree/bindings/arm/qcom-soc.yaml
> new file mode 100644
> index 000000000000..0be18c1d2961
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/qcom-soc.yaml
[...]
> +      pattern: "^qcom,.*(apq|ipq|mdm|msm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$"

FWIW: There is also the "qcm" prefix, used e.g. in "qcom,qcm2290-tlmm".

Also, the APQ equivalent of "sdm" would be "sda", e.g. SDA845 which is
used in the DB845c. (Not sure if someone will ever use the SDA variant
in a compatible though.)

Thanks,
Stephan