[v6,13/14] dt-bindings: cpufreq: Document operating-points-v2-kryo-cpu

Message ID	1526303520-5843-14-git-send-email-ilialin@codeaurora.org (mailing list archive)
State	Not Applicable, archived
Headers	show Return-Path: <linux-pm-owner@kernel.org> sender: ilialin@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 910A06085F; Mon, 14 May 2018 13:13:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 910A06085F From: Ilia Lin <ilialin@codeaurora.org> To: mturquette@baylibre.com, sboyd@kernel.org, robh@kernel.org, mark.rutland@arm.com, viresh.kumar@linaro.org, nm@ti.com, lgirdwood@gmail.com, broonie@kernel.org, andy.gross@linaro.org, david.brown@linaro.org, catalin.marinas@arm.com, will.deacon@arm.com, rjw@rjwysocki.net, linux-clk@vger.kernel.org Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, rnayak@codeaurora.org, ilialin@codeaurora.org, amit.kucheria@linaro.org, nicolas.dechesne@linaro.org, celster@codeaurora.org, tfinkel@codeaurora.org Subject: [PATCH v6 13/14] dt-bindings: cpufreq: Document operating-points-v2-kryo-cpu Date: Mon, 14 May 2018 16:11:59 +0300 Message-Id: <1526303520-5843-14-git-send-email-ilialin@codeaurora.org> In-Reply-To: <1526303520-5843-1-git-send-email-ilialin@codeaurora.org> References: <1526303520-5843-1-git-send-email-ilialin@codeaurora.org> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk

diff --git a/Documentation/devicetree/bindings/opp/kryo-cpufreq.txt b/Documentation/devicetree/bindings/opp/kryo-cpufreq.txt new file mode 100644 index 0000000..c2127b9 --- /dev/null +++ b/Documentation/devicetree/bindings/opp/kryo-cpufreq.txt @@ -0,0 +1,680 @@ +Qualcomm Technologies, Inc. KRYO CPUFreq and OPP bindings +=================================== + +In Certain Qualcomm Technologies, Inc. SoCs like apq8096 and msm8996 +that have KRYO processors, the CPU ferequencies subset and voltage value +of each OPP varies based on the silicon variant in use. +Qualcomm Technologies, Inc. Process Voltage Scaling Tables +defines the voltage and frequency value based on the msm-id in SMEM +and speedbin blown in the efuse combination. +The qcom-cpufreq-kryo driver reads the msm-id and efuse value from the SoC +to provide the OPP framework with required information (existing HW bitmap). +This is used to determine the voltage and frequency value for each OPP of +operating-points-v2 table when it is parsed by the OPP framework. + +Required properties: +-------------------- +In 'cpus' nodes: +- operating-points-v2: Phandle to the operating-points-v2 table to use. + +In 'operating-points-v2' table: +- compatible: Should be + - 'operating-points-v2-kryo-cpu' for apq8096 and msm8996. +- nvmem-cells: A phandle pointing to a nvmem-cells node representing the + efuse registers that has information about the + speedbin that is used to select the right frequency/voltage + value pair. + Please refer the for nvmem-cells + bindings Documentation/devicetree/bindings/nvmem/nvmem.txt + and also examples below. + +In every OPP node: +- opp-supported-hw: A single 32 bit bitmap value, representing compatible HW. + Bitmap: + 0: MSM8996 V3, speedbin 0 + 1: MSM8996 V3, speedbin 1 + 2: MSM8996 V3, speedbin 2 + 3: unused + 4: MSM8996 SG, speedbin 0 + 5: MSM8996 SG, speedbin 1 + 6: MSM8996 SG, speedbin 2 + 7-31: unused + +Example 1: +--------- + + cpus { + #address-cells = <2>; + #size-cells = <0>; + + CPU0: cpu@0 { + device_type = "cpu"; + compatible = "qcom,kryo"; + reg = <0x0 0x0>; + enable-method = "psci"; + clocks = <&kryocc 0>; + cpu-supply = <&pm8994_s11_saw>; + operating-points-v2 = <&cluster0_opp>; + #cooling-cells = <2>; + next-level-cache = <&L2_0>; + L2_0: l2-cache { + compatible = "cache"; + cache-level = <2>; + }; + }; + + CPU1: cpu@1 { + device_type = "cpu"; + compatible = "qcom,kryo"; + reg = <0x0 0x1>; + enable-method = "psci"; + clocks = <&kryocc 0>; + cpu-supply = <&pm8994_s11_saw>; + operating-points-v2 = <&cluster0_opp>; + #cooling-cells = <2>; + next-level-cache = <&L2_0>; + }; + + CPU2: cpu@100 { + device_type = "cpu"; + compatible = "qcom,kryo"; + reg = <0x0 0x100>; + enable-method = "psci"; + clocks = <&kryocc 1>; + cpu-supply = <&pm8994_s11_saw>; + operating-points-v2 = <&cluster1_opp>; + #cooling-cells = <2>; + next-level-cache = <&L2_1>; + L2_1: l2-cache { + compatible = "cache"; + cache-level = <2>; + }; + }; + + CPU3: cpu@101 { + device_type = "cpu"; + compatible = "qcom,kryo"; + reg = <0x0 0x101>; + enable-method = "psci"; + clocks = <&kryocc 1>; + cpu-supply = <&pm8994_s11_saw>; + operating-points-v2 = <&cluster1_opp>; + #cooling-cells = <2>; + next-level-cache = <&L2_1>; + }; + + cpu-map { + cluster0 { + core0 { + cpu = <&CPU0>; + }; + + core1 { + cpu = <&CPU1>; + }; + }; + + cluster1 { + core0 { + cpu = <&CPU2>; + }; + + core1 { + cpu = <&CPU3>; + }; + }; + }; + }; + + cluster0_opp: opp_table0 { + compatible = "operating-points-v2-kryo-cpu"; + nvmem-cells = <&speedbin_efuse>; + opp-shared; + + opp-307200000 { + opp-hz = /bits/ 64 <307200000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x77>; + clock-latency-ns = <200000>; + }; + opp-384000000 { + opp-hz = /bits/ 64 <384000000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-422400000 { + opp-hz = /bits/ 64 <422400000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-460800000 { + opp-hz = /bits/ 64 <460800000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-480000000 { + opp-hz = /bits/ 64 <480000000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-537600000 { + opp-hz = /bits/ 64 <537600000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-556800000 { + opp-hz = /bits/ 64 <556800000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-614400000 { + opp-hz = /bits/ 64 <614400000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-652800000 { + opp-hz = /bits/ 64 <652800000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-691200000 { + opp-hz = /bits/ 64 <691200000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-729600000 { + opp-hz = /bits/ 64 <729600000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-768000000 { + opp-hz = /bits/ 64 <768000000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-844800000 { + opp-hz = /bits/ 64 <844800000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x77>; + clock-latency-ns = <200000>; + }; + opp-902400000 { + opp-hz = /bits/ 64 <902400000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-960000000 { + opp-hz = /bits/ 64 <960000000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-979200000 { + opp-hz = /bits/ 64 <979200000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-1036800000 { + opp-hz = /bits/ 64 <1036800000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-1056000000 { + opp-hz = /bits/ 64 <1056000000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-1113600000 { + opp-hz = /bits/ 64 <1113600000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-1132800000 { + opp-hz = /bits/ 64 <1132800000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-1190400000 { + opp-hz = /bits/ 64 <1190400000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-1209600000 { + opp-hz = /bits/ 64 <1209600000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-1228800000 { + opp-hz = /bits/ 64 <1228800000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-1286400000 { + opp-hz = /bits/ 64 <1286400000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-1324800000 { + opp-hz = /bits/ 64 <1324800000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x5>; + clock-latency-ns = <200000>; + }; + opp-1363200000 { + opp-hz = /bits/ 64 <1363200000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x72>; + clock-latency-ns = <200000>; + }; + opp-1401600000 { + opp-hz = /bits/ 64 <1401600000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x5>; + clock-latency-ns = <200000>; + }; + opp-1440000000 { + opp-hz = /bits/ 64 <1440000000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-1478400000 { + opp-hz = /bits/ 64 <1478400000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x1>; + clock-latency-ns = <200000>; + }; + opp-1497600000 { + opp-hz = /bits/ 64 <1497600000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x4>; + clock-latency-ns = <200000>; + }; + opp-1516800000 { + opp-hz = /bits/ 64 <1516800000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-1593600000 { + opp-hz = /bits/ 64 <1593600000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x71>; + clock-latency-ns = <200000>; + }; + opp-1996800000 { + opp-hz = /bits/ 64 <1996800000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x20>; + clock-latency-ns = <200000>; + }; + opp-2188800000 { + opp-hz = /bits/ 64 <2188800000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x10>; + clock-latency-ns = <200000>; + }; + }; + + cluster1_opp: opp_table1 { + compatible = "operating-points-v2-kryo-cpu"; + nvmem-cells = <&speedbin_efuse>; + opp-shared; + + opp-307200000 { + opp-hz = /bits/ 64 <307200000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x77>; + clock-latency-ns = <200000>; + }; + opp-384000000 { + opp-hz = /bits/ 64 <384000000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-403200000 { + opp-hz = /bits/ 64 <403200000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-460800000 { + opp-hz = /bits/ 64 <460800000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-480000000 { + opp-hz = /bits/ 64 <480000000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-537600000 { + opp-hz = /bits/ 64 <537600000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-556800000 { + opp-hz = /bits/ 64 <556800000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-614400000 { + opp-hz = /bits/ 64 <614400000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-652800000 { + opp-hz = /bits/ 64 <652800000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-691200000 { + opp-hz = /bits/ 64 <691200000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-729600000 { + opp-hz = /bits/ 64 <729600000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-748800000 { + opp-hz = /bits/ 64 <748800000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-806400000 { + opp-hz = /bits/ 64 <806400000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-825600000 { + opp-hz = /bits/ 64 <825600000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-883200000 { + opp-hz = /bits/ 64 <883200000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-902400000 { + opp-hz = /bits/ 64 <902400000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-940800000 { + opp-hz = /bits/ 64 <940800000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-979200000 { + opp-hz = /bits/ 64 <979200000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-1036800000 { + opp-hz = /bits/ 64 <1036800000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-1056000000 { + opp-hz = /bits/ 64 <1056000000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-1113600000 { + opp-hz = /bits/ 64 <1113600000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-1132800000 { + opp-hz = /bits/ 64 <1132800000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-1190400000 { + opp-hz = /bits/ 64 <1190400000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-1209600000 { + opp-hz = /bits/ 64 <1209600000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-1248000000 { + opp-hz = /bits/ 64 <1248000000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-1286400000 { + opp-hz = /bits/ 64 <1286400000>; + opp-microvolt = <905000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-1324800000 { + opp-hz = /bits/ 64 <1324800000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-1363200000 { + opp-hz = /bits/ 64 <1363200000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-1401600000 { + opp-hz = /bits/ 64 <1401600000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-1440000000 { + opp-hz = /bits/ 64 <1440000000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-1478400000 { + opp-hz = /bits/ 64 <1478400000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-1516800000 { + opp-hz = /bits/ 64 <1516800000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-1555200000 { + opp-hz = /bits/ 64 <1555200000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-1593600000 { + opp-hz = /bits/ 64 <1593600000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-1632000000 { + opp-hz = /bits/ 64 <1632000000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-1670400000 { + opp-hz = /bits/ 64 <1670400000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-1708800000 { + opp-hz = /bits/ 64 <1708800000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-1747200000 { + opp-hz = /bits/ 64 <1747200000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x70>; + clock-latency-ns = <200000>; + }; + opp-1785600000 { + opp-hz = /bits/ 64 <1785600000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x7>; + clock-latency-ns = <200000>; + }; + opp-1804800000 { + opp-hz = /bits/ 64 <1804800000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x6>; + clock-latency-ns = <200000>; + }; + opp-1824000000 { + opp-hz = /bits/ 64 <1824000000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x71>; + clock-latency-ns = <200000>; + }; + opp-1900800000 { + opp-hz = /bits/ 64 <1900800000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x74>; + clock-latency-ns = <200000>; + }; + opp-1920000000 { + opp-hz = /bits/ 64 <1920000000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x1>; + clock-latency-ns = <200000>; + }; + opp-1977600000 { + opp-hz = /bits/ 64 <1977600000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x30>; + clock-latency-ns = <200000>; + }; + opp-1996800000 { + opp-hz = /bits/ 64 <1996800000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x1>; + clock-latency-ns = <200000>; + }; + opp-2054400000 { + opp-hz = /bits/ 64 <2054400000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x30>; + clock-latency-ns = <200000>; + }; + opp-2073600000 { + opp-hz = /bits/ 64 <2073600000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x1>; + clock-latency-ns = <200000>; + }; + opp-2150400000 { + opp-hz = /bits/ 64 <2150400000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x31>; + clock-latency-ns = <200000>; + }; + opp-2246400000 { + opp-hz = /bits/ 64 <2246400000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x10>; + clock-latency-ns = <200000>; + }; + opp-2342400000 { + opp-hz = /bits/ 64 <2342400000>; + opp-microvolt = <1140000 905000 1140000>; + opp-supported-hw = <0x10>; + clock-latency-ns = <200000>; + }; + }; + +.... + +reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; +.... + smem_mem: smem-mem@86000000 { + reg = <0x0 0x86000000 0x0 0x200000>; + no-map; + }; +.... +}; + +smem { + compatible = "qcom,smem"; + memory-region = <&smem_mem>; + hwlocks = <&tcsr_mutex 3>; +}; + +soc { +.... + qfprom: qfprom@74000 { + compatible = "qcom,qfprom"; + reg = <0x00074000 0x8ff>; + #address-cells = <1>; + #size-cells = <1>; + .... + speedbin_efuse: speedbin@133 { + reg = <0x133 0x1>; + bits = <5 3>; + }; + }; +};

[v6,13/14] dt-bindings: cpufreq: Document operating-points-v2-kryo-cpu

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