linux-kernel - Re: [PATCH v4 3/4] cpufreq: qcom-nvmem: Enable cpufreq for ipq5424

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Message-ID: <134a6436-18b1-4b21-aa19-5e7411c1678d@oss.qualcomm.com>
Date: Wed, 30 Jul 2025 10:38:23 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Viresh Kumar <viresh.kumar@...aro.org>,
        Varadarajan Narayanan <quic_varada@...cinc.com>
Cc: andersson@...nel.org, mturquette@...libre.com, sboyd@...nel.org,
        robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
        konradybcio@...nel.org, rafael@...nel.org, ilia.lin@...nel.org,
        djakov@...nel.org, quic_srichara@...cinc.com, quic_mdalam@...cinc.com,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org
Subject: Re: [PATCH v4 3/4] cpufreq: qcom-nvmem: Enable cpufreq for ipq5424

On 7/30/25 10:28 AM, Viresh Kumar wrote:
> On 30-07-25, 13:43, Varadarajan Narayanan wrote:
>> From: Md Sadre Alam <quic_mdalam@...cinc.com>
>>
>> IPQ5424 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 ipq5424 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.
>>
>> Signed-off-by: Md Sadre Alam <quic_mdalam@...cinc.com>
>> Signed-off-by: Sricharan Ramabadhran <quic_srichara@...cinc.com>
>> Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
>> [ Changed '!=' based check to '==' based check ]
>> Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
>> ---
>> v2: Add Reviewed-by: Konrad
>>     Change speed bin check to == instead of !=
>> --
>>  drivers/cpufreq/cpufreq-dt-platdev.c | 1 +
>>  drivers/cpufreq/qcom-cpufreq-nvmem.c | 5 +++++
>>  2 files changed, 6 insertions(+)
> 
> Acked-by: Viresh Kumar <viresh.kumar@...aro.org>
> 
> Lemme know if you want me to pick this one.

Please go ahead

Konrad