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From:   Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Date:   Thu, 19 Oct 2023 17:08:08 +0300
Message-ID: <CAA8EJpqfOjGp+FYCxfkFukvZ+bRFytvSFO+nvmMBn6heNpRraA@mail.gmail.com>
Subject: Re: [PATCH v4 6/9] cpufreq: qti: Enable cpufreq for ipq53xx
To:     Varadarajan Narayanan <quic_varada@quicinc.com>
Cc:     agross@kernel.org, andersson@kernel.org, konrad.dybcio@linaro.org,
        robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
        conor+dt@kernel.org, mturquette@baylibre.com, sboyd@kernel.org,
        rafael@kernel.org, viresh.kumar@linaro.org, ilia.lin@kernel.org,
        sivaprak@codeaurora.org, quic_kathirav@quicinc.com,
        linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org,
        linux-pm@vger.kernel.org
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On Thu, 19 Oct 2023 at 11:43, Varadarajan Narayanan
<quic_varada@quicinc.com> wrote:
>
> IPQ53xx have different OPPs available for the CPU based on
> SoC variant. This can be determined through use of an eFuse
> register present in the silicon.
>
> Added support for ipq53xx on nvmem driver which helps to
> determine OPPs at runtime based on the eFuse register which
> has the CPU frequency limits. opp-supported-hw dt binding
> can be used to indicate the available OPPs for each limit.
>
> nvmem driver also creates the "cpufreq-dt" platform_device after
> passing the version matching data to the OPP framework so that the
> cpufreq-dt handles the actual cpufreq implementation.
>
> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
> Signed-off-by: Kathiravan T <quic_kathirav@quicinc.com>
> Signed-off-by: Varadarajan Narayanan <quic_varada@quicinc.com>

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>


-- 
With best wishes
Dmitry