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[83.9.29.26]) by smtp.gmail.com with ESMTPSA id f14-20020ac2532e000000b004fb77cb4b8esm4291607lfh.14.2023.07.04.06.50.21 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 04 Jul 2023 06:50:22 -0700 (PDT) Message-ID: <3a305852-b44f-0b4b-e8dc-fbb0749ddb18@linaro.org> Date: Tue, 4 Jul 2023 15:50:20 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.12.0 Subject: Re: [RFC PATCH 4/8] ARM: dts: qcom: msm8960-cdp: constraint cpufreq regulators Content-Language: en-US To: Dmitry Baryshkov Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Andy Gross , Bjorn Andersson , Ilia Lin , Viresh Kumar , Nishanth Menon , Stephen Boyd , Michael Turquette , "Rafael J. Wysocki" , Georgi Djakov , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-clk@vger.kernel.org, Christian Marangi , Stephan Gerhold References: <20230702175045.122041-1-dmitry.baryshkov@linaro.org> <20230702175045.122041-5-dmitry.baryshkov@linaro.org> <971262d5-98b3-c48e-89fd-ce107275008a@linaro.org> From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On 4.07.2023 15:34, Dmitry Baryshkov wrote: > On Tue, 4 Jul 2023 at 16:03, Konrad Dybcio wrote: >> >> On 2.07.2023 19:50, Dmitry Baryshkov wrote: >>> Add additional constraints to the CPUfreq-related regulators, it is >>> better be safe than sorry there. >>> >>> Signed-off-by: Dmitry Baryshkov >>> --- >> I'm squinting quite hard at >> >> https://github.com/LineageOS/sony-kernel-msm8960/blob/jb-dev/arch/arm/mach-msm/acpuclock-8960.c >> >> but I can't figure out where these min values came from > > These should be the minimum values for vdd_min and vdd_dig in > l2_freq_tbl_8960_kraitv2 (v1 is unsupported in mainline). > See below, > >> >> Konrad >>> arch/arm/boot/dts/qcom/qcom-msm8960-cdp.dts | 4 ++-- >>> 1 file changed, 2 insertions(+), 2 deletions(-) >>> >>> diff --git a/arch/arm/boot/dts/qcom/qcom-msm8960-cdp.dts b/arch/arm/boot/dts/qcom/qcom-msm8960-cdp.dts >>> index 414881d34c60..cba0d1e460a1 100644 >>> --- a/arch/arm/boot/dts/qcom/qcom-msm8960-cdp.dts >>> +++ b/arch/arm/boot/dts/qcom/qcom-msm8960-cdp.dts >>> @@ -131,7 +131,7 @@ pm8921_s2: s2 { >>> }; >>> >>> pm8921_s3: s3 { >>> - regulator-min-microvolt = <500000>; >>> + regulator-min-microvolt = <950000>; > > And this is obviously a c&p from 8064. This should be 1050000. Okay, please remember to fix all other boards from this patchset too. Konrad > >>> regulator-max-microvolt = <1150000>; >>> qcom,switch-mode-frequency = <4800000>; >>> bias-pull-down; >>> @@ -287,7 +287,7 @@ pm8921_l23: l23 { >>> }; >>> >>> pm8921_l24: l24 { >>> - regulator-min-microvolt = <750000>; >>> + regulator-min-microvolt = <1050000>; >>> regulator-max-microvolt = <1150000>; >>> bias-pull-down; >>> }; > > >