linux-kernel - Re: [PATCH v6 2/3] dt-bindings: cpufreq: qcom-cpufreq-nvmem: make cpr bindings optional

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Message-ID: <1f387cb5-2ed7-5001-d846-d059499b1347@linaro.org>
Date:   Mon, 13 Feb 2023 11:26:52 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Christian Marangi <ansuelsmth@...il.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Ilia Lin <ilia.lin@...nel.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Nishanth Menon <nm@...com>, Stephen Boyd <sboyd@...nel.org>,
        linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 2/3] dt-bindings: cpufreq: qcom-cpufreq-nvmem: make cpr
 bindings optional

On 08/02/2023 16:39, Christian Marangi wrote:
> The qcom-cpufreq-nvmem driver supports 2 kind of devices:
> - pre-cpr that doesn't have power-domains and base everything on nvmem
>   cells and multiple named microvolt bindings.
>   Doesn't need required-opp binding in the opp nodes as they are only
>   used for genpd based devices.
> - cpr-based that require power-domain in the cpu nodes and use various
>   source to decide the correct voltage and freq
>   Require required-opp binding since they need to be linked to the
>   related opp-level.
> 
> When the schema was introduced, it was wrongly set to always require these
> binding but this is not the case for pre-cpr devices.
> 


Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Best regards,
Krzysztof