linux-kernel - Re: [PATCH v6 3/4] cpufreq: qcom-nvmem: add support for IPQ8064

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Message-ID: <a6cc8d55-2892-478f-ad8a-a9a4359abb7d@linaro.org>
Date:   Thu, 26 Oct 2023 22:01:26 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Christian Marangi <ansuelsmth@...il.com>,
        Ilia Lin <ilia.lin@...nel.org>, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...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>,
        Conor Dooley <conor+dt@...nel.org>, Nishanth Menon <nm@...com>,
        Stephen Boyd <sboyd@...nel.org>,
        Sricharan Ramabadhran <quic_srichara@...cinc.com>,
        linux-pm@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 3/4] cpufreq: qcom-nvmem: add support for IPQ8064



On 10/13/23 19:38, Christian Marangi wrote:
> IPQ8064 comes in 3 families:
> * IPQ8062 up to 1.0GHz
> * IPQ8064/IPQ8066/IPQ8068 up to 1.4GHz
> * IPQ8065/IPQ8069 up to 1.7Ghz
> 
> So, in order to be able to support one OPP table, add support for
> IPQ8064 family based of SMEM SoC ID-s and correctly set the version so
> opp-supported-hw can be correctly used.
> 
> Bit are set with the following logic:
> * IPQ8062 BIT 0
> * IPQ8064/IPQ8066/IPQ8068 BIT 1
> * IPQ8065/IPQ8069 BIT 2
> 
> speed is never fused, only pvs values are fused.
> 
> IPQ806x SoC doesn't have pvs_version so we drop and we use the new
> pattern:
> opp-microvolt-speed0-pvs<PSV_VALUE>
> 
> Example:
> - for ipq8062 psv2
>    opp-microvolt-speed0-pvs2 = < 925000 878750 971250>
> 
> Fixes: a8811ec764f9 ("cpufreq: qcom: Add support for krait based socs")
> Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>

Konrad