linux-kernel - Re: [PATCH v3 8/8] arm64: dts: qcom: ipq9574: populate the opp table based on the eFuse

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <5e1eacc5-721e-4ac1-a62f-ece6a1c4355c@linaro.org>
Date:   Wed, 18 Oct 2023 22:10:16 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Varadarajan Narayanan <quic_varada@...cinc.com>, agross@...nel.org,
        andersson@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        mturquette@...libre.com, sboyd@...nel.org, rafael@...nel.org,
        viresh.kumar@...aro.org, ilia.lin@...nel.org,
        quic_kathirav@...cinc.com, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH v3 8/8] arm64: dts: qcom: ipq9574: populate the opp table
 based on the eFuse



On 10/18/23 11:29, Varadarajan Narayanan wrote:
> IPQ95xx SoCs have different OPPs available for the CPU based on
> SoC variant. This can be determined from an eFuse register
> present in the silicon.
> 
> Add support to read the eFuse and populate the OPPs based on it.
> 
> Frequency	1.2GHz	1.8GHz	1.5GHz	No	opp-supported-hw
> 					Limit
> ------------------------------------------------------------
> 936000000	1	1	1	1	0xf
> 1104000000	1	1	1	1	0xf
> 1200000000	1	1	1	1	0xf
> 1416000000	0	1	1	1	0x7
> 1488000000	0	1	1	1	0x7
> 1800000000	0	1	0	1	0x5
> 2208000000	0	0	0	1	0x1
> -----------------------------------------------------------
> 
> Signed-off-by: Kathiravan T <quic_kathirav@...cinc.com>
> Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
> ---
> v2:	cpu_speed_bin -> cpu-speed-bin in node name
> 	Move comment to commit log
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>

Konrad