linux-kernel - Re: [PATCH v2 10/15] dt-bindings: msm: dsi-phy-14nm: Document SM6125 variant

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Date:   Thu, 29 Jun 2023 13:54:13 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Marijn Suijten <marijn.suijten@...ainline.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Krishna Manikandan <quic_mkrishn@...cinc.com>,
        Loic Poulain <loic.poulain@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>
Cc:     ~postmarketos/upstreaming@...ts.sr.ht,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Martin Botka <martin.botka@...ainline.org>,
        Jami Kettunen <jami.kettunen@...ainline.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Krzysztof Kozlowski <krzk@...nel.org>,
        linux-clk@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, Lux Aliaga <they@...t.lgbt>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: Re: [PATCH v2 10/15] dt-bindings: msm: dsi-phy-14nm: Document SM6125
 variant

On 27/06/2023 23:14, Marijn Suijten wrote:
> Document availability of the 14nm DSI PHY on SM6125.  Note that this
> compatible uses the SoC-suffix variant, intead of postfixing an
> arbitrary number without the sm/sdm portion.  The PHY is not powered by
> a vcca regulator like on most SoCs, but by the MX power domain that is
> provided via the power-domains property and a single corresponding
> required-opps.
> 
> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> Signed-off-by: Marijn Suijten <marijn.suijten@...ainline.org>
> ---
>   .../devicetree/bindings/display/msm/dsi-phy-14nm.yaml         | 11 +++++++++++
>   1 file changed, 11 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/msm/dsi-phy-14nm.yaml b/Documentation/devicetree/bindings/display/msm/dsi-phy-14nm.yaml
> index a43e11d3b00d..183a26f8a6dc 100644
> --- a/Documentation/devicetree/bindings/display/msm/dsi-phy-14nm.yaml
> +++ b/Documentation/devicetree/bindings/display/msm/dsi-phy-14nm.yaml
> @@ -19,6 +19,7 @@ properties:
>         - qcom,dsi-phy-14nm-2290
>         - qcom,dsi-phy-14nm-660
>         - qcom,dsi-phy-14nm-8953
> +      - qcom,sm6125-dsi-phy-14nm
>   
>     reg:
>       items:
> @@ -35,6 +36,16 @@ properties:
>     vcca-supply:
>       description: Phandle to vcca regulator device node.
>   
> +  power-domains:
> +    description:
> +      A phandle and PM domain specifier for an optional power domain.
> +    maxItems: 1
> +
> +  required-opps:
> +    description:
> +      A phandle to an OPP node describing an optional performance point.

I'd rephrase this to be something more exact, like 'desribing power 
domain's performance point'.

> +    maxItems: 1
> +
>   required:
>     - compatible
>     - reg
> 

-- 
With best wishes
Dmitry