| Message ID | 1517890108-8140-16-git-send-email-sricharan@codeaurora.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 06-02-18, 09:38, Sricharan R wrote: > In Certain QCOM SoCs like ipq8064, apq8064, msm8960, msm8974 > that has KRAIT processors the voltage/current value of each OPP > varies based on the silicon variant in use. > operating-points-v2-krait-cpu specifies the phandle to nvmem efuse cells > and the operating-points-v2 table for each opp. The qcom-cpufreq driver > reads the efuse value from the SoC to provide the required information > that is used to determine the voltage and current value for each OPP of > operating-points-v2 table when it is parsed by the OPP framework. > > Signed-off-by: Sricharan R <sricharan@codeaurora.org> > --- > .../devicetree/bindings/cpufreq/krait-cpufreq.txt | 363 +++++++++++++++++++++ > 1 file changed, 363 insertions(+) > create mode 100644 Documentation/devicetree/bindings/cpufreq/krait-cpufreq.txt You can add my Ack if Rob also finds everything to be fine here. Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Hi Viresh, On 2/6/2018 9:57 AM, Viresh Kumar wrote: > On 06-02-18, 09:38, Sricharan R wrote: >> In Certain QCOM SoCs like ipq8064, apq8064, msm8960, msm8974 >> that has KRAIT processors the voltage/current value of each OPP >> varies based on the silicon variant in use. >> operating-points-v2-krait-cpu specifies the phandle to nvmem efuse cells >> and the operating-points-v2 table for each opp. The qcom-cpufreq driver >> reads the efuse value from the SoC to provide the required information >> that is used to determine the voltage and current value for each OPP of >> operating-points-v2 table when it is parsed by the OPP framework. >> >> Signed-off-by: Sricharan R <sricharan@codeaurora.org> >> --- >> .../devicetree/bindings/cpufreq/krait-cpufreq.txt | 363 +++++++++++++++++++++ >> 1 file changed, 363 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/cpufreq/krait-cpufreq.txt > > You can add my Ack if Rob also finds everything to be fine here. > > Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Thanks !! Regards, Sricharan
On Tue, Feb 06, 2018 at 09:38:28AM +0530, Sricharan R wrote: > In Certain QCOM SoCs like ipq8064, apq8064, msm8960, msm8974 > that has KRAIT processors the voltage/current value of each OPP > varies based on the silicon variant in use. > operating-points-v2-krait-cpu specifies the phandle to nvmem efuse cells > and the operating-points-v2 table for each opp. The qcom-cpufreq driver > reads the efuse value from the SoC to provide the required information > that is used to determine the voltage and current value for each OPP of > operating-points-v2 table when it is parsed by the OPP framework. > > Signed-off-by: Sricharan R <sricharan@codeaurora.org> > --- > .../devicetree/bindings/cpufreq/krait-cpufreq.txt | 363 +++++++++++++++++++++ > 1 file changed, 363 insertions(+) > create mode 100644 Documentation/devicetree/bindings/cpufreq/krait-cpufreq.txt > > diff --git a/Documentation/devicetree/bindings/cpufreq/krait-cpufreq.txt b/Documentation/devicetree/bindings/cpufreq/krait-cpufreq.txt > new file mode 100644 > index 0000000..e7351f7 > --- /dev/null > +++ b/Documentation/devicetree/bindings/cpufreq/krait-cpufreq.txt > @@ -0,0 +1,363 @@ > +QCOM KRAIT CPUFreq and OPP bindings > +=================================== > + > +In Certain QCOM SoCs like ipq8064, apq8064, msm8960, msm8974 > +that has KRAIT processors the voltage value of each OPP varies > +based on the silicon variant in use. Qualcomm Process Voltage Scaling Tables > +defines the voltage and current value based on the speed/pvs/version > +combination blown in the efuse. The qcom-cpufreq driver reads the efuse > +value from the SoC to provide the OPP framework with required information. > +This is used to determine the voltage and current 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-krait-cpu' for ipq8064, apq8064, msm8960, > + msm8974. > +- nvmem-cells: A phandle pointing to a nvmem-cells node representing the > + efuse registers that has information about the > + speedbin/pvs/version that is used to select the right > + voltage/current value pair. Note that the length field of the > + nvmem-cell is used to differentiate between format 'A' or 'B' > + efuse settings. len of '4' bytes is for format 'A' and '8' > + bytes for format 'B'. Please refer the for nvmem-cells > + bindings Documentation/devicetree/bindings/nvmem/nvmem.txt > + and also examples below for both the cases. > +Example 1: > +--------- > + > +/* For arch/arm/boot/dts/apq8064.dtsi --> format 'A' */ > +cpus { > + #address-cells = <1>; > + #size-cells = <0>; > + > + CPU0: cpu@0 { > + compatible = "qcom,krait"; > + enable-method = "qcom,kpss-acc-v1"; > + device_type = "cpu"; > + reg = <0>; > + next-level-cache = <&L2>; > + qcom,acc = <&acc0>; > + qcom,saw = <&saw0>; > + cpu-idle-states = <&CPU_SPC>; > + operating-points-v2 = <&cpu_opp_table>; > + }; > +}; > + > +qfprom: qfprom@700000 { > + compatible = "qcom,qfprom"; > + reg = <0x00700000 0x1000>; > + #address-cells = <1>; > + #size-cells = <1>; > + ranges; > + pvs_efuse: pvs { > + reg = <0xc0 0x4>; > + }; > +}; > + > +cpu_opp_table: opp-table { > + compatible = "operating-points-v2-krait-cpu"; > + nvmem-cells = <&pvs_efuse>; > + > + /* > + * Missing opp-shared property means CPUs switch DVFS states > + * independently. > + */ > + > + opp-918000000 { > + opp-hz = /bits/ 64 <918000000>; > + opp-microvolt-speed0-pvs0-v0 = <1100000>; Where is this property defined? I'm not that happy with it, but don't have a better suggestion. Maybe make pvsN be an array of values with 0 for any skipped indexes? The '-v0' seems pointless. > + opp-microvolt-speed0-pvs1-v0 = <1050000>; > + opp-microvolt-speed0-pvs3-v0 = <1000000>; > + opp-microvolt-speed0-pvs4-v0 = <975000>; > + opp-microvolt-speed1-pvs0-v0 = <1025000>; > + opp-microvolt-speed1-pvs1-v0 = <1000000>; > + opp-microvolt-speed1-pvs2-v0 = <950000>; > + opp-microvolt-speed1-pvs3-v0 = <925000>; > + opp-microvolt-speed1-pvs4-v0 = <900000>; > + opp-microvolt-speed1-pvs5-v0 = <900000>; > + opp-microvolt-speed1-pvs6-v0 = <900000>; > + opp-microvolt-speed2-pvs0-v0 = <975000>; > + opp-microvolt-speed2-pvs1-v0 = <950000>; > + opp-microvolt-speed2-pvs2-v0 = <925000>; > + opp-microvolt-speed2-pvs3-v0 = <912500>; > + opp-microvolt-speed2-pvs4-v0 = <900000>; > + opp-microvolt-speed2-pvs5-v0 = <900000>; > + opp-microvolt-speed2-pvs6-v0 = <900000>; > + opp-microvolt-speed14-pvs0-v0 = <1025000>; > + opp-microvolt-speed14-pvs1-v0 = <1000000>; > + opp-microvolt-speed14-pvs2-v0 = <950000>; > + opp-microvolt-speed14-pvs3-v0 = <925000>; > + opp-microvolt-speed14-pvs4-v0 = <900000>; > + opp-microvolt-speed14-pvs5-v0 = <900000>; > + opp-microvolt-speed14-pvs6-v0 = <900000>; > + }; > + > + opp-810000000 { > + opp-hz = /bits/ 64 <810000000>; > + opp-microvolt-speed0-pvs0-v0 = < 1075000>; > + opp-microvolt-speed0-pvs1-v0 = < 1025000>; > + opp-microvolt-speed0-pvs3-v0 = < 975000>; > + opp-microvolt-speed0-pvs3-v0 = < 962500>; > + opp-microvolt-speed1-pvs0-v0 = < 1000000>; > + opp-microvolt-speed1-pvs1-v0 = < 975000>; > + opp-microvolt-speed1-pvs2-v0 = < 937500>; > + opp-microvolt-speed1-pvs3-v0 = < 900000>; > + opp-microvolt-speed1-pvs4-v0 = < 887500>; > + opp-microvolt-speed1-pvs5-v0 = < 887500>; > + opp-microvolt-speed1-pvs6-v0 = < 887500>; > + opp-microvolt-speed2-pvs0-v0 = < 962500>; > + opp-microvolt-speed2-pvs1-v0 = < 937500>; > + opp-microvolt-speed2-pvs2-v0 = < 912500>; > + opp-microvolt-speed2-pvs3-v0 = < 900000>; > + opp-microvolt-speed2-pvs4-v0 = < 887500>; > + opp-microvolt-speed2-pvs5-v0 = < 887500>; > + opp-microvolt-speed2-pvs6-v0 = < 887500>; Some space then tab issues on the above. Also, drop the space after the '<'. > + opp-microvolt-speed14-pvs0-v0 = < 1000000>; > + opp-microvolt-speed14-pvs1-v0 = < 975000>; > + opp-microvolt-speed14-pvs2-v0 = < 937500>; > + opp-microvolt-speed14-pvs3-v0 = < 900000>; > + opp-microvolt-speed14-pvs4-v0 = < 887500>; > + opp-microvolt-speed14-pvs5-v0 = < 887500>; > + opp-microvolt-speed14-pvs6-v0 = < 887500>; > + }; > + > + opp-702000000 { > + opp-hz = /bits/ 64 <702000000>; > + opp-microvolt-speed0-pvs0-v0 = <1025000>; > + opp-microvolt-speed0-pvs1-v0 = <975000>; > + opp-microvolt-speed0-pvs3-v0 = <925000>; > + opp-microvolt-speed0-pvs3-v0 = <925000>; > + opp-microvolt-speed1-pvs0-v0 = <962500>; > + opp-microvolt-speed1-pvs1-v0 = <962500>; > + opp-microvolt-speed1-pvs2-v0 = <925000>; > + opp-microvolt-speed1-pvs3-v0 = <900000>; > + opp-microvolt-speed1-pvs4-v0 = <875000>; > + opp-microvolt-speed1-pvs5-v0 = <875000>; > + opp-microvolt-speed1-pvs6-v0 = <875000>; > + opp-microvolt-speed2-pvs0-v0 = <950000>; > + opp-microvolt-speed2-pvs1-v0 = <925000>; > + opp-microvolt-speed2-pvs2-v0 = <900000>; > + opp-microvolt-speed2-pvs3-v0 = <900000>; > + opp-microvolt-speed2-pvs4-v0 = <875000>; > + opp-microvolt-speed2-pvs5-v0 = <875000>; > + opp-microvolt-speed2-pvs6-v0 = <875000>; > + opp-microvolt-speed14-pvs0-v0 = <962500>; > + opp-microvolt-speed14-pvs1-v0 = <962500>; > + opp-microvolt-speed14-pvs2-v0 = <925000>; > + opp-microvolt-speed14-pvs3-v0 = <900000>; > + opp-microvolt-speed14-pvs4-v0 = <875000>; > + opp-microvolt-speed14-pvs5-v0 = <875000>; > + opp-microvolt-speed14-pvs6-v0 = <875000>; > + }; > + > + opp-594000000 { > + opp-hz = /bits/ 64 <594000000>; > + opp-microvolt-speed0-pvs0-v0 = <1000000>; > + opp-microvolt-speed0-pvs1-v0 = <950000>; > + opp-microvolt-speed0-pvs3-v0 = <900000>; > + opp-microvolt-speed0-pvs3-v0 = <900000>; > + opp-microvolt-speed1-pvs0-v0 = <950000>; > + opp-microvolt-speed1-pvs1-v0 = <950000>; > + opp-microvolt-speed1-pvs2-v0 = <925000>; > + opp-microvolt-speed1-pvs3-v0 = <900000>; > + opp-microvolt-speed1-pvs4-v0 = <875000>; > + opp-microvolt-speed1-pvs5-v0 = <875000>; > + opp-microvolt-speed1-pvs6-v0 = <875000>; > + opp-microvolt-speed2-pvs0-v0 = <950000>; > + opp-microvolt-speed2-pvs1-v0 = <925000>; > + opp-microvolt-speed2-pvs2-v0 = <900000>; > + opp-microvolt-speed2-pvs3-v0 = <900000>; > + opp-microvolt-speed2-pvs4-v0 = <875000>; > + opp-microvolt-speed2-pvs5-v0 = <875000>; > + opp-microvolt-speed2-pvs6-v0 = <875000>; More space then tab issues after the '='. > + opp-microvolt-speed14-pvs0-v0 = <950000>; > + opp-microvolt-speed14-pvs1-v0 = <950000>; > + opp-microvolt-speed14-pvs2-v0 = <925000>; > + opp-microvolt-speed14-pvs3-v0 = <900000>; > + opp-microvolt-speed14-pvs4-v0 = <875000>; > + opp-microvolt-speed14-pvs5-v0 = <875000>; > + opp-microvolt-speed14-pvs6-v0 = <875000>; > + }; > + > + opp-486000000 { > + opp-hz = /bits/ 64 <486000000>; > + opp-microvolt-speed0-pvs0-v0 = <975000>; > + opp-microvolt-speed0-pvs1-v0 = <925000>; > + opp-microvolt-speed0-pvs3-v0 = <875000>; > + opp-microvolt-speed0-pvs3-v0 = <875000>; > + opp-microvolt-speed1-pvs0-v0 = <950000>; > + opp-microvolt-speed1-pvs1-v0 = <950000>; > + opp-microvolt-speed1-pvs2-v0 = <925000>; > + opp-microvolt-speed1-pvs3-v0 = <900000>; > + opp-microvolt-speed1-pvs4-v0 = <875000>; > + opp-microvolt-speed1-pvs5-v0 = <875000>; > + opp-microvolt-speed1-pvs6-v0 = <875000>; > + opp-microvolt-speed2-pvs0-v0 = <950000>; > + opp-microvolt-speed2-pvs1-v0 = <925000>; > + opp-microvolt-speed2-pvs2-v0 = <900000>; > + opp-microvolt-speed2-pvs3-v0 = <900000>; > + opp-microvolt-speed2-pvs4-v0 = <875000>; > + opp-microvolt-speed2-pvs5-v0 = <875000>; > + opp-microvolt-speed2-pvs6-v0 = <875000>; > + opp-microvolt-speed14-pvs0-v0 = <950000>; > + opp-microvolt-speed14-pvs1-v0 = <950000>; > + opp-microvolt-speed14-pvs2-v0 = <925000>; > + opp-microvolt-speed14-pvs3-v0 = <900000>; > + opp-microvolt-speed14-pvs4-v0 = <875000>; > + opp-microvolt-speed14-pvs5-v0 = <875000>; > + opp-microvolt-speed14-pvs6-v0 = <875000>; > + }; > + > + opp-384000000 { > + opp-hz = /bits/ 64 <384000000>; > + opp-microvolt-speed0-pvs0-v0 = <950000>; > + opp-microvolt-speed0-pvs1-v0 = <900000>; > + opp-microvolt-speed0-pvs3-v0 = <850000>; > + opp-microvolt-speed0-pvs3-v0 = <850000>; > + opp-microvolt-speed1-pvs0-v0 = <950000>; > + opp-microvolt-speed1-pvs1-v0 = <950000>; > + opp-microvolt-speed1-pvs2-v0 = <925000>; > + opp-microvolt-speed1-pvs3-v0 = <900000>; > + opp-microvolt-speed1-pvs4-v0 = <875000>; > + opp-microvolt-speed1-pvs5-v0 = <875000>; > + opp-microvolt-speed1-pvs6-v0 = <875000>; > + opp-microvolt-speed2-pvs0-v0 = <950000>; > + opp-microvolt-speed2-pvs1-v0 = <925000>; > + opp-microvolt-speed2-pvs2-v0 = <900000>; > + opp-microvolt-speed2-pvs3-v0 = <900000>; > + opp-microvolt-speed2-pvs4-v0 = <875000>; > + opp-microvolt-speed2-pvs5-v0 = <875000>; > + opp-microvolt-speed2-pvs6-v0 = <875000>; > + opp-microvolt-speed14-pvs0-v0 = <950000>; > + opp-microvolt-speed14-pvs1-v0 = <950000>; > + opp-microvolt-speed14-pvs2-v0 = <925000>; > + opp-microvolt-speed14-pvs3-v0 = <900000>; > + opp-microvolt-speed14-pvs4-v0 = <875000>; > + opp-microvolt-speed14-pvs5-v0 = <875000>; > + opp-microvolt-speed14-pvs6-v0 = <875000>; > + }; > +}; > + > +EXAMPLE 2: > +--------- > +/* For arch/arm/boot/dts/qcom-msm8974.dtsi--> format 'B' */ > + > +qfprom: qfprom@700000 { > + compatible = "qcom,qfprom"; > + reg = <0x00700000 0x1000>; > + #address-cells = <1>; > + #size-cells = <1>; > + ranges; > + pvs_efuse: pvs { > + reg = <0xc0 0x8>; > + }; > +}; > + > +cpu_opp_table: opp-table { > + compatible = "operating-points-v2-krait-cpu"; > + nvmem-cells = <&pvs_efuse>; > + > + /* > + * Missing opp-shared property means CPUs switch DVFS states > + * independently. > + */ > + opp-960000000 { > + opp-hz = /bits/ 64 <960000000>; > + opp-microvolt-speed0-pvs0-v0 = <915000>; > + opp-microvolt-speed0-pvs1-v0 = <895000>; > + opp-microvolt-speed0-pvs2-v0 = <875000>; > + opp-microvolt-speed0-pvs3-v0 = <860000>; > + opp-microvolt-speed0-pvs4-v0 = <850000>; > + opp-microvolt-speed0-pvs5-v0 = <840000>; > + opp-microvolt-speed0-pvs6-v0 = <830000>; > + opp-microvolt-speed2-pvs0-v0 = <875000>; > + opp-microvolt-speed2-pvs1-v0 = <860000>; > + opp-microvolt-speed2-pvs2-v0 = <845000>; > + opp-microvolt-speed2-pvs3-v0 = <830000>; > + opp-microvolt-speed2-pvs4-v0 = <820000>; > + opp-microvolt-speed2-pvs5-v0 = <810000>; > + opp-microvolt-speed2-pvs6-v0 = <800000>; > + opp-microvolt-speed1-pvs0-v0 = <840000>; > + opp-microvolt-speed1-pvs1-v0 = <825000>; > + opp-microvolt-speed1-pvs2-v0 = <810000>; > + opp-microvolt-speed1-pvs3-v0 = <795000>; > + opp-microvolt-speed1-pvs4-v0 = <785000>; > + opp-microvolt-speed1-pvs5-v0 = <775000>; > + opp-microvolt-speed1-pvs6-v0 = <765000>; > + > + opp-microamp-speed0-pvs0-v0 = <252>; > + opp-microamp-speed0-pvs1-v0 = <252>; > + opp-microamp-speed0-pvs2-v0 = <252>; > + opp-microamp-speed0-pvs3-v0 = <252>; > + opp-microamp-speed0-pvs4-v0 = <252>; > + opp-microamp-speed0-pvs5-v0 = <252>; > + opp-microamp-speed0-pvs6-v0 = <252>; > + opp-microamp-speed2-pvs0-v0 = <245>; > + opp-microamp-speed2-pvs1-v0 = <245>; > + opp-microamp-speed2-pvs2-v0 = <245>; > + opp-microamp-speed2-pvs3-v0 = <245>; > + opp-microamp-speed2-pvs4-v0 = <245>; > + opp-microamp-speed2-pvs5-v0 = <245>; > + opp-microamp-speed2-pvs6-v0 = <245>; > + opp-microamp-speed1-pvs0-v0 = <242>; > + opp-microamp-speed1-pvs1-v0 = <242>; > + opp-microamp-speed1-pvs2-v0 = <242>; > + opp-microamp-speed1-pvs3-v0 = <242>; > + opp-microamp-speed1-pvs4-v0 = <242>; > + opp-microamp-speed1-pvs5-v0 = <242>; > + opp-microamp-speed1-pvs6-v0 = <242>; > + }; > + > + opp-883200000 { > + opp-hz = /bits/ 64 <883200000>; > + opp-microvolt-speed0-pvs0-v0 = <900000>; > + opp-microvolt-speed0-pvs1-v0 = <885000>; > + opp-microvolt-speed0-pvs2-v0 = <865000>; > + opp-microvolt-speed0-pvs3-v0 = <850000>; > + opp-microvolt-speed0-pvs4-v0 = <840000>; > + opp-microvolt-speed0-pvs5-v0 = <830000>; > + opp-microvolt-speed0-pvs6-v0 = <820000>; > + opp-microvolt-speed2-pvs0-v0 = <865000>; > + opp-microvolt-speed2-pvs1-v0 = <850000>; > + opp-microvolt-speed2-pvs2-v0 = <835000>; > + opp-microvolt-speed2-pvs3-v0 = <820000>; > + opp-microvolt-speed2-pvs4-v0 = <810000>; > + opp-microvolt-speed2-pvs5-v0 = <800000>; > + opp-microvolt-speed2-pvs6-v0 = <790000>; > + opp-microvolt-speed1-pvs0-v0 = <830000>; > + opp-microvolt-speed1-pvs1-v0 = <815000>; > + opp-microvolt-speed1-pvs2-v0 = <800000>; > + opp-microvolt-speed1-pvs3-v0 = <785000>; > + opp-microvolt-speed1-pvs4-v0 = <775000>; > + opp-microvolt-speed1-pvs5-v0 = <765000>; > + opp-microvolt-speed1-pvs6-v0 = <755000>; > + > + opp-microamp-speed0-pvs0-v0 = <229>; > + opp-microamp-speed0-pvs1-v0 = <229>; > + opp-microamp-speed0-pvs2-v0 = <229>; > + opp-microamp-speed0-pvs3-v0 = <229>; > + opp-microamp-speed0-pvs4-v0 = <229>; > + opp-microamp-speed0-pvs5-v0 = <229>; > + opp-microamp-speed0-pvs6-v0 = <229>; > + opp-microamp-speed2-pvs0-v0 = <223>; > + opp-microamp-speed2-pvs1-v0 = <223>; > + opp-microamp-speed2-pvs2-v0 = <223>; > + opp-microamp-speed2-pvs3-v0 = <223>; > + opp-microamp-speed2-pvs4-v0 = <223>; > + opp-microamp-speed2-pvs5-v0 = <223>; > + opp-microamp-speed2-pvs6-v0 = <223>; > + opp-microamp-speed1-pvs0-v0 = <221>; > + opp-microamp-speed1-pvs1-v0 = <221>; > + opp-microamp-speed1-pvs2-v0 = <221>; > + opp-microamp-speed1-pvs3-v0 = <221>; > + opp-microamp-speed1-pvs4-v0 = <221>; > + opp-microamp-speed1-pvs5-v0 = <221>; > + opp-microamp-speed1-pvs6-v0 = <221>; > + }; > +}; > -- > QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation >
Hi Rob, On 2/9/2018 8:24 AM, Rob Herring wrote: > On Tue, Feb 06, 2018 at 09:38:28AM +0530, Sricharan R wrote: >> In Certain QCOM SoCs like ipq8064, apq8064, msm8960, msm8974 >> that has KRAIT processors the voltage/current value of each OPP >> varies based on the silicon variant in use. >> operating-points-v2-krait-cpu specifies the phandle to nvmem efuse cells >> and the operating-points-v2 table for each opp. The qcom-cpufreq driver >> reads the efuse value from the SoC to provide the required information >> that is used to determine the voltage and current value for each OPP of >> operating-points-v2 table when it is parsed by the OPP framework. >> >> Signed-off-by: Sricharan R <sricharan@codeaurora.org> >> --- >> .../devicetree/bindings/cpufreq/krait-cpufreq.txt | 363 +++++++++++++++++++++ >> 1 file changed, 363 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/cpufreq/krait-cpufreq.txt >> >> diff --git a/Documentation/devicetree/bindings/cpufreq/krait-cpufreq.txt b/Documentation/devicetree/bindings/cpufreq/krait-cpufreq.txt >> new file mode 100644 >> index 0000000..e7351f7 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/cpufreq/krait-cpufreq.txt >> @@ -0,0 +1,363 @@ >> +QCOM KRAIT CPUFreq and OPP bindings >> +=================================== >> + >> +In Certain QCOM SoCs like ipq8064, apq8064, msm8960, msm8974 >> +that has KRAIT processors the voltage value of each OPP varies >> +based on the silicon variant in use. Qualcomm Process Voltage Scaling Tables >> +defines the voltage and current value based on the speed/pvs/version >> +combination blown in the efuse. The qcom-cpufreq driver reads the efuse >> +value from the SoC to provide the OPP framework with required information. >> +This is used to determine the voltage and current 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-krait-cpu' for ipq8064, apq8064, msm8960, >> + msm8974. >> +- nvmem-cells: A phandle pointing to a nvmem-cells node representing the >> + efuse registers that has information about the >> + speedbin/pvs/version that is used to select the right >> + voltage/current value pair. Note that the length field of the >> + nvmem-cell is used to differentiate between format 'A' or 'B' >> + efuse settings. len of '4' bytes is for format 'A' and '8' >> + bytes for format 'B'. Please refer the for nvmem-cells >> + bindings Documentation/devicetree/bindings/nvmem/nvmem.txt >> + and also examples below for both the cases. >> +Example 1: >> +--------- >> + >> +/* For arch/arm/boot/dts/apq8064.dtsi --> format 'A' */ >> +cpus { >> + #address-cells = <1>; >> + #size-cells = <0>; >> + >> + CPU0: cpu@0 { >> + compatible = "qcom,krait"; >> + enable-method = "qcom,kpss-acc-v1"; >> + device_type = "cpu"; >> + reg = <0>; >> + next-level-cache = <&L2>; >> + qcom,acc = <&acc0>; >> + qcom,saw = <&saw0>; >> + cpu-idle-states = <&CPU_SPC>; >> + operating-points-v2 = <&cpu_opp_table>; >> + }; >> +}; >> + >> +qfprom: qfprom@700000 { >> + compatible = "qcom,qfprom"; >> + reg = <0x00700000 0x1000>; >> + #address-cells = <1>; >> + #size-cells = <1>; >> + ranges; >> + pvs_efuse: pvs { >> + reg = <0xc0 0x4>; >> + }; >> +}; >> + >> +cpu_opp_table: opp-table { >> + compatible = "operating-points-v2-krait-cpu"; >> + nvmem-cells = <&pvs_efuse>; >> + >> + /* >> + * Missing opp-shared property means CPUs switch DVFS states >> + * independently. >> + */ >> + >> + opp-918000000 { >> + opp-hz = /bits/ 64 <918000000>; >> + opp-microvolt-speed0-pvs0-v0 = <1100000>; > > Where is this property defined? I'm not that happy with it, but don't > have a better suggestion. Maybe make pvsN be an array of values with 0 > for any skipped indexes? The '-v0' seems pointless. > 'opp-microvolt' is the property that comes from OPP-V2 bindings and rest of the string "speed%s-pvs%s-v%s" gets concatenated to the string by the cpufreq driver using dev_pm_opp_set_prop_name api. So all the three speed,pvs,v (version) come from efuse and can vary. Just that in the data so far, v is always '0'. >> + opp-microvolt-speed0-pvs1-v0 = <1050000>; >> + opp-microvolt-speed0-pvs3-v0 = <1000000>; >> + opp-microvolt-speed0-pvs4-v0 = <975000>; >> + opp-microvolt-speed1-pvs0-v0 = <1025000>; >> + opp-microvolt-speed1-pvs1-v0 = <1000000>; >> + opp-microvolt-speed1-pvs2-v0 = <950000>; >> + opp-microvolt-speed1-pvs3-v0 = <925000>; >> + opp-microvolt-speed1-pvs4-v0 = <900000>; >> + opp-microvolt-speed1-pvs5-v0 = <900000>; >> + opp-microvolt-speed1-pvs6-v0 = <900000>; >> + opp-microvolt-speed2-pvs0-v0 = <975000>; >> + opp-microvolt-speed2-pvs1-v0 = <950000>; >> + opp-microvolt-speed2-pvs2-v0 = <925000>; >> + opp-microvolt-speed2-pvs3-v0 = <912500>; >> + opp-microvolt-speed2-pvs4-v0 = <900000>; >> + opp-microvolt-speed2-pvs5-v0 = <900000>; >> + opp-microvolt-speed2-pvs6-v0 = <900000>; >> + opp-microvolt-speed14-pvs0-v0 = <1025000>; >> + opp-microvolt-speed14-pvs1-v0 = <1000000>; >> + opp-microvolt-speed14-pvs2-v0 = <950000>; >> + opp-microvolt-speed14-pvs3-v0 = <925000>; >> + opp-microvolt-speed14-pvs4-v0 = <900000>; >> + opp-microvolt-speed14-pvs5-v0 = <900000>; >> + opp-microvolt-speed14-pvs6-v0 = <900000>; >> + }; >> + >> + opp-810000000 { >> + opp-hz = /bits/ 64 <810000000>; >> + opp-microvolt-speed0-pvs0-v0 = < 1075000>; >> + opp-microvolt-speed0-pvs1-v0 = < 1025000>; >> + opp-microvolt-speed0-pvs3-v0 = < 975000>; >> + opp-microvolt-speed0-pvs3-v0 = < 962500>; >> + opp-microvolt-speed1-pvs0-v0 = < 1000000>; >> + opp-microvolt-speed1-pvs1-v0 = < 975000>; >> + opp-microvolt-speed1-pvs2-v0 = < 937500>; >> + opp-microvolt-speed1-pvs3-v0 = < 900000>; >> + opp-microvolt-speed1-pvs4-v0 = < 887500>; >> + opp-microvolt-speed1-pvs5-v0 = < 887500>; >> + opp-microvolt-speed1-pvs6-v0 = < 887500>; >> + opp-microvolt-speed2-pvs0-v0 = < 962500>; >> + opp-microvolt-speed2-pvs1-v0 = < 937500>; >> + opp-microvolt-speed2-pvs2-v0 = < 912500>; >> + opp-microvolt-speed2-pvs3-v0 = < 900000>; >> + opp-microvolt-speed2-pvs4-v0 = < 887500>; >> + opp-microvolt-speed2-pvs5-v0 = < 887500>; >> + opp-microvolt-speed2-pvs6-v0 = < 887500>; > > Some space then tab issues on the above. Also, drop the space after the > '<'. ok, will fix it. > >> + opp-microvolt-speed14-pvs0-v0 = < 1000000>; >> + opp-microvolt-speed14-pvs1-v0 = < 975000>; >> + opp-microvolt-speed14-pvs2-v0 = < 937500>; >> + opp-microvolt-speed14-pvs3-v0 = < 900000>; >> + opp-microvolt-speed14-pvs4-v0 = < 887500>; >> + opp-microvolt-speed14-pvs5-v0 = < 887500>; >> + opp-microvolt-speed14-pvs6-v0 = < 887500>; >> + }; >> + >> + opp-702000000 { >> + opp-hz = /bits/ 64 <702000000>; >> + opp-microvolt-speed0-pvs0-v0 = <1025000>; >> + opp-microvolt-speed0-pvs1-v0 = <975000>; >> + opp-microvolt-speed0-pvs3-v0 = <925000>; >> + opp-microvolt-speed0-pvs3-v0 = <925000>; >> + opp-microvolt-speed1-pvs0-v0 = <962500>; >> + opp-microvolt-speed1-pvs1-v0 = <962500>; >> + opp-microvolt-speed1-pvs2-v0 = <925000>; >> + opp-microvolt-speed1-pvs3-v0 = <900000>; >> + opp-microvolt-speed1-pvs4-v0 = <875000>; >> + opp-microvolt-speed1-pvs5-v0 = <875000>; >> + opp-microvolt-speed1-pvs6-v0 = <875000>; >> + opp-microvolt-speed2-pvs0-v0 = <950000>; >> + opp-microvolt-speed2-pvs1-v0 = <925000>; >> + opp-microvolt-speed2-pvs2-v0 = <900000>; >> + opp-microvolt-speed2-pvs3-v0 = <900000>; >> + opp-microvolt-speed2-pvs4-v0 = <875000>; >> + opp-microvolt-speed2-pvs5-v0 = <875000>; >> + opp-microvolt-speed2-pvs6-v0 = <875000>; >> + opp-microvolt-speed14-pvs0-v0 = <962500>; >> + opp-microvolt-speed14-pvs1-v0 = <962500>; >> + opp-microvolt-speed14-pvs2-v0 = <925000>; >> + opp-microvolt-speed14-pvs3-v0 = <900000>; >> + opp-microvolt-speed14-pvs4-v0 = <875000>; >> + opp-microvolt-speed14-pvs5-v0 = <875000>; >> + opp-microvolt-speed14-pvs6-v0 = <875000>; >> + }; >> + >> + opp-594000000 { >> + opp-hz = /bits/ 64 <594000000>; >> + opp-microvolt-speed0-pvs0-v0 = <1000000>; >> + opp-microvolt-speed0-pvs1-v0 = <950000>; >> + opp-microvolt-speed0-pvs3-v0 = <900000>; >> + opp-microvolt-speed0-pvs3-v0 = <900000>; >> + opp-microvolt-speed1-pvs0-v0 = <950000>; >> + opp-microvolt-speed1-pvs1-v0 = <950000>; >> + opp-microvolt-speed1-pvs2-v0 = <925000>; >> + opp-microvolt-speed1-pvs3-v0 = <900000>; >> + opp-microvolt-speed1-pvs4-v0 = <875000>; >> + opp-microvolt-speed1-pvs5-v0 = <875000>; >> + opp-microvolt-speed1-pvs6-v0 = <875000>; >> + opp-microvolt-speed2-pvs0-v0 = <950000>; >> + opp-microvolt-speed2-pvs1-v0 = <925000>; >> + opp-microvolt-speed2-pvs2-v0 = <900000>; >> + opp-microvolt-speed2-pvs3-v0 = <900000>; >> + opp-microvolt-speed2-pvs4-v0 = <875000>; >> + opp-microvolt-speed2-pvs5-v0 = <875000>; >> + opp-microvolt-speed2-pvs6-v0 = <875000>; > > More space then tab issues after the '='. > ok, will fix. Regards, Sricharan
diff --git a/Documentation/devicetree/bindings/cpufreq/krait-cpufreq.txt b/Documentation/devicetree/bindings/cpufreq/krait-cpufreq.txt new file mode 100644 index 0000000..e7351f7 --- /dev/null +++ b/Documentation/devicetree/bindings/cpufreq/krait-cpufreq.txt @@ -0,0 +1,363 @@ +QCOM KRAIT CPUFreq and OPP bindings +=================================== + +In Certain QCOM SoCs like ipq8064, apq8064, msm8960, msm8974 +that has KRAIT processors the voltage value of each OPP varies +based on the silicon variant in use. Qualcomm Process Voltage Scaling Tables +defines the voltage and current value based on the speed/pvs/version +combination blown in the efuse. The qcom-cpufreq driver reads the efuse +value from the SoC to provide the OPP framework with required information. +This is used to determine the voltage and current 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-krait-cpu' for ipq8064, apq8064, msm8960, + msm8974. +- nvmem-cells: A phandle pointing to a nvmem-cells node representing the + efuse registers that has information about the + speedbin/pvs/version that is used to select the right + voltage/current value pair. Note that the length field of the + nvmem-cell is used to differentiate between format 'A' or 'B' + efuse settings. len of '4' bytes is for format 'A' and '8' + bytes for format 'B'. Please refer the for nvmem-cells + bindings Documentation/devicetree/bindings/nvmem/nvmem.txt + and also examples below for both the cases. +Example 1: +--------- + +/* For arch/arm/boot/dts/apq8064.dtsi --> format 'A' */ +cpus { + #address-cells = <1>; + #size-cells = <0>; + + CPU0: cpu@0 { + compatible = "qcom,krait"; + enable-method = "qcom,kpss-acc-v1"; + device_type = "cpu"; + reg = <0>; + next-level-cache = <&L2>; + qcom,acc = <&acc0>; + qcom,saw = <&saw0>; + cpu-idle-states = <&CPU_SPC>; + operating-points-v2 = <&cpu_opp_table>; + }; +}; + +qfprom: qfprom@700000 { + compatible = "qcom,qfprom"; + reg = <0x00700000 0x1000>; + #address-cells = <1>; + #size-cells = <1>; + ranges; + pvs_efuse: pvs { + reg = <0xc0 0x4>; + }; +}; + +cpu_opp_table: opp-table { + compatible = "operating-points-v2-krait-cpu"; + nvmem-cells = <&pvs_efuse>; + + /* + * Missing opp-shared property means CPUs switch DVFS states + * independently. + */ + + opp-918000000 { + opp-hz = /bits/ 64 <918000000>; + opp-microvolt-speed0-pvs0-v0 = <1100000>; + opp-microvolt-speed0-pvs1-v0 = <1050000>; + opp-microvolt-speed0-pvs3-v0 = <1000000>; + opp-microvolt-speed0-pvs4-v0 = <975000>; + opp-microvolt-speed1-pvs0-v0 = <1025000>; + opp-microvolt-speed1-pvs1-v0 = <1000000>; + opp-microvolt-speed1-pvs2-v0 = <950000>; + opp-microvolt-speed1-pvs3-v0 = <925000>; + opp-microvolt-speed1-pvs4-v0 = <900000>; + opp-microvolt-speed1-pvs5-v0 = <900000>; + opp-microvolt-speed1-pvs6-v0 = <900000>; + opp-microvolt-speed2-pvs0-v0 = <975000>; + opp-microvolt-speed2-pvs1-v0 = <950000>; + opp-microvolt-speed2-pvs2-v0 = <925000>; + opp-microvolt-speed2-pvs3-v0 = <912500>; + opp-microvolt-speed2-pvs4-v0 = <900000>; + opp-microvolt-speed2-pvs5-v0 = <900000>; + opp-microvolt-speed2-pvs6-v0 = <900000>; + opp-microvolt-speed14-pvs0-v0 = <1025000>; + opp-microvolt-speed14-pvs1-v0 = <1000000>; + opp-microvolt-speed14-pvs2-v0 = <950000>; + opp-microvolt-speed14-pvs3-v0 = <925000>; + opp-microvolt-speed14-pvs4-v0 = <900000>; + opp-microvolt-speed14-pvs5-v0 = <900000>; + opp-microvolt-speed14-pvs6-v0 = <900000>; + }; + + opp-810000000 { + opp-hz = /bits/ 64 <810000000>; + opp-microvolt-speed0-pvs0-v0 = < 1075000>; + opp-microvolt-speed0-pvs1-v0 = < 1025000>; + opp-microvolt-speed0-pvs3-v0 = < 975000>; + opp-microvolt-speed0-pvs3-v0 = < 962500>; + opp-microvolt-speed1-pvs0-v0 = < 1000000>; + opp-microvolt-speed1-pvs1-v0 = < 975000>; + opp-microvolt-speed1-pvs2-v0 = < 937500>; + opp-microvolt-speed1-pvs3-v0 = < 900000>; + opp-microvolt-speed1-pvs4-v0 = < 887500>; + opp-microvolt-speed1-pvs5-v0 = < 887500>; + opp-microvolt-speed1-pvs6-v0 = < 887500>; + opp-microvolt-speed2-pvs0-v0 = < 962500>; + opp-microvolt-speed2-pvs1-v0 = < 937500>; + opp-microvolt-speed2-pvs2-v0 = < 912500>; + opp-microvolt-speed2-pvs3-v0 = < 900000>; + opp-microvolt-speed2-pvs4-v0 = < 887500>; + opp-microvolt-speed2-pvs5-v0 = < 887500>; + opp-microvolt-speed2-pvs6-v0 = < 887500>; + opp-microvolt-speed14-pvs0-v0 = < 1000000>; + opp-microvolt-speed14-pvs1-v0 = < 975000>; + opp-microvolt-speed14-pvs2-v0 = < 937500>; + opp-microvolt-speed14-pvs3-v0 = < 900000>; + opp-microvolt-speed14-pvs4-v0 = < 887500>; + opp-microvolt-speed14-pvs5-v0 = < 887500>; + opp-microvolt-speed14-pvs6-v0 = < 887500>; + }; + + opp-702000000 { + opp-hz = /bits/ 64 <702000000>; + opp-microvolt-speed0-pvs0-v0 = <1025000>; + opp-microvolt-speed0-pvs1-v0 = <975000>; + opp-microvolt-speed0-pvs3-v0 = <925000>; + opp-microvolt-speed0-pvs3-v0 = <925000>; + opp-microvolt-speed1-pvs0-v0 = <962500>; + opp-microvolt-speed1-pvs1-v0 = <962500>; + opp-microvolt-speed1-pvs2-v0 = <925000>; + opp-microvolt-speed1-pvs3-v0 = <900000>; + opp-microvolt-speed1-pvs4-v0 = <875000>; + opp-microvolt-speed1-pvs5-v0 = <875000>; + opp-microvolt-speed1-pvs6-v0 = <875000>; + opp-microvolt-speed2-pvs0-v0 = <950000>; + opp-microvolt-speed2-pvs1-v0 = <925000>; + opp-microvolt-speed2-pvs2-v0 = <900000>; + opp-microvolt-speed2-pvs3-v0 = <900000>; + opp-microvolt-speed2-pvs4-v0 = <875000>; + opp-microvolt-speed2-pvs5-v0 = <875000>; + opp-microvolt-speed2-pvs6-v0 = <875000>; + opp-microvolt-speed14-pvs0-v0 = <962500>; + opp-microvolt-speed14-pvs1-v0 = <962500>; + opp-microvolt-speed14-pvs2-v0 = <925000>; + opp-microvolt-speed14-pvs3-v0 = <900000>; + opp-microvolt-speed14-pvs4-v0 = <875000>; + opp-microvolt-speed14-pvs5-v0 = <875000>; + opp-microvolt-speed14-pvs6-v0 = <875000>; + }; + + opp-594000000 { + opp-hz = /bits/ 64 <594000000>; + opp-microvolt-speed0-pvs0-v0 = <1000000>; + opp-microvolt-speed0-pvs1-v0 = <950000>; + opp-microvolt-speed0-pvs3-v0 = <900000>; + opp-microvolt-speed0-pvs3-v0 = <900000>; + opp-microvolt-speed1-pvs0-v0 = <950000>; + opp-microvolt-speed1-pvs1-v0 = <950000>; + opp-microvolt-speed1-pvs2-v0 = <925000>; + opp-microvolt-speed1-pvs3-v0 = <900000>; + opp-microvolt-speed1-pvs4-v0 = <875000>; + opp-microvolt-speed1-pvs5-v0 = <875000>; + opp-microvolt-speed1-pvs6-v0 = <875000>; + opp-microvolt-speed2-pvs0-v0 = <950000>; + opp-microvolt-speed2-pvs1-v0 = <925000>; + opp-microvolt-speed2-pvs2-v0 = <900000>; + opp-microvolt-speed2-pvs3-v0 = <900000>; + opp-microvolt-speed2-pvs4-v0 = <875000>; + opp-microvolt-speed2-pvs5-v0 = <875000>; + opp-microvolt-speed2-pvs6-v0 = <875000>; + opp-microvolt-speed14-pvs0-v0 = <950000>; + opp-microvolt-speed14-pvs1-v0 = <950000>; + opp-microvolt-speed14-pvs2-v0 = <925000>; + opp-microvolt-speed14-pvs3-v0 = <900000>; + opp-microvolt-speed14-pvs4-v0 = <875000>; + opp-microvolt-speed14-pvs5-v0 = <875000>; + opp-microvolt-speed14-pvs6-v0 = <875000>; + }; + + opp-486000000 { + opp-hz = /bits/ 64 <486000000>; + opp-microvolt-speed0-pvs0-v0 = <975000>; + opp-microvolt-speed0-pvs1-v0 = <925000>; + opp-microvolt-speed0-pvs3-v0 = <875000>; + opp-microvolt-speed0-pvs3-v0 = <875000>; + opp-microvolt-speed1-pvs0-v0 = <950000>; + opp-microvolt-speed1-pvs1-v0 = <950000>; + opp-microvolt-speed1-pvs2-v0 = <925000>; + opp-microvolt-speed1-pvs3-v0 = <900000>; + opp-microvolt-speed1-pvs4-v0 = <875000>; + opp-microvolt-speed1-pvs5-v0 = <875000>; + opp-microvolt-speed1-pvs6-v0 = <875000>; + opp-microvolt-speed2-pvs0-v0 = <950000>; + opp-microvolt-speed2-pvs1-v0 = <925000>; + opp-microvolt-speed2-pvs2-v0 = <900000>; + opp-microvolt-speed2-pvs3-v0 = <900000>; + opp-microvolt-speed2-pvs4-v0 = <875000>; + opp-microvolt-speed2-pvs5-v0 = <875000>; + opp-microvolt-speed2-pvs6-v0 = <875000>; + opp-microvolt-speed14-pvs0-v0 = <950000>; + opp-microvolt-speed14-pvs1-v0 = <950000>; + opp-microvolt-speed14-pvs2-v0 = <925000>; + opp-microvolt-speed14-pvs3-v0 = <900000>; + opp-microvolt-speed14-pvs4-v0 = <875000>; + opp-microvolt-speed14-pvs5-v0 = <875000>; + opp-microvolt-speed14-pvs6-v0 = <875000>; + }; + + opp-384000000 { + opp-hz = /bits/ 64 <384000000>; + opp-microvolt-speed0-pvs0-v0 = <950000>; + opp-microvolt-speed0-pvs1-v0 = <900000>; + opp-microvolt-speed0-pvs3-v0 = <850000>; + opp-microvolt-speed0-pvs3-v0 = <850000>; + opp-microvolt-speed1-pvs0-v0 = <950000>; + opp-microvolt-speed1-pvs1-v0 = <950000>; + opp-microvolt-speed1-pvs2-v0 = <925000>; + opp-microvolt-speed1-pvs3-v0 = <900000>; + opp-microvolt-speed1-pvs4-v0 = <875000>; + opp-microvolt-speed1-pvs5-v0 = <875000>; + opp-microvolt-speed1-pvs6-v0 = <875000>; + opp-microvolt-speed2-pvs0-v0 = <950000>; + opp-microvolt-speed2-pvs1-v0 = <925000>; + opp-microvolt-speed2-pvs2-v0 = <900000>; + opp-microvolt-speed2-pvs3-v0 = <900000>; + opp-microvolt-speed2-pvs4-v0 = <875000>; + opp-microvolt-speed2-pvs5-v0 = <875000>; + opp-microvolt-speed2-pvs6-v0 = <875000>; + opp-microvolt-speed14-pvs0-v0 = <950000>; + opp-microvolt-speed14-pvs1-v0 = <950000>; + opp-microvolt-speed14-pvs2-v0 = <925000>; + opp-microvolt-speed14-pvs3-v0 = <900000>; + opp-microvolt-speed14-pvs4-v0 = <875000>; + opp-microvolt-speed14-pvs5-v0 = <875000>; + opp-microvolt-speed14-pvs6-v0 = <875000>; + }; +}; + +EXAMPLE 2: +--------- +/* For arch/arm/boot/dts/qcom-msm8974.dtsi--> format 'B' */ + +qfprom: qfprom@700000 { + compatible = "qcom,qfprom"; + reg = <0x00700000 0x1000>; + #address-cells = <1>; + #size-cells = <1>; + ranges; + pvs_efuse: pvs { + reg = <0xc0 0x8>; + }; +}; + +cpu_opp_table: opp-table { + compatible = "operating-points-v2-krait-cpu"; + nvmem-cells = <&pvs_efuse>; + + /* + * Missing opp-shared property means CPUs switch DVFS states + * independently. + */ + opp-960000000 { + opp-hz = /bits/ 64 <960000000>; + opp-microvolt-speed0-pvs0-v0 = <915000>; + opp-microvolt-speed0-pvs1-v0 = <895000>; + opp-microvolt-speed0-pvs2-v0 = <875000>; + opp-microvolt-speed0-pvs3-v0 = <860000>; + opp-microvolt-speed0-pvs4-v0 = <850000>; + opp-microvolt-speed0-pvs5-v0 = <840000>; + opp-microvolt-speed0-pvs6-v0 = <830000>; + opp-microvolt-speed2-pvs0-v0 = <875000>; + opp-microvolt-speed2-pvs1-v0 = <860000>; + opp-microvolt-speed2-pvs2-v0 = <845000>; + opp-microvolt-speed2-pvs3-v0 = <830000>; + opp-microvolt-speed2-pvs4-v0 = <820000>; + opp-microvolt-speed2-pvs5-v0 = <810000>; + opp-microvolt-speed2-pvs6-v0 = <800000>; + opp-microvolt-speed1-pvs0-v0 = <840000>; + opp-microvolt-speed1-pvs1-v0 = <825000>; + opp-microvolt-speed1-pvs2-v0 = <810000>; + opp-microvolt-speed1-pvs3-v0 = <795000>; + opp-microvolt-speed1-pvs4-v0 = <785000>; + opp-microvolt-speed1-pvs5-v0 = <775000>; + opp-microvolt-speed1-pvs6-v0 = <765000>; + + opp-microamp-speed0-pvs0-v0 = <252>; + opp-microamp-speed0-pvs1-v0 = <252>; + opp-microamp-speed0-pvs2-v0 = <252>; + opp-microamp-speed0-pvs3-v0 = <252>; + opp-microamp-speed0-pvs4-v0 = <252>; + opp-microamp-speed0-pvs5-v0 = <252>; + opp-microamp-speed0-pvs6-v0 = <252>; + opp-microamp-speed2-pvs0-v0 = <245>; + opp-microamp-speed2-pvs1-v0 = <245>; + opp-microamp-speed2-pvs2-v0 = <245>; + opp-microamp-speed2-pvs3-v0 = <245>; + opp-microamp-speed2-pvs4-v0 = <245>; + opp-microamp-speed2-pvs5-v0 = <245>; + opp-microamp-speed2-pvs6-v0 = <245>; + opp-microamp-speed1-pvs0-v0 = <242>; + opp-microamp-speed1-pvs1-v0 = <242>; + opp-microamp-speed1-pvs2-v0 = <242>; + opp-microamp-speed1-pvs3-v0 = <242>; + opp-microamp-speed1-pvs4-v0 = <242>; + opp-microamp-speed1-pvs5-v0 = <242>; + opp-microamp-speed1-pvs6-v0 = <242>; + }; + + opp-883200000 { + opp-hz = /bits/ 64 <883200000>; + opp-microvolt-speed0-pvs0-v0 = <900000>; + opp-microvolt-speed0-pvs1-v0 = <885000>; + opp-microvolt-speed0-pvs2-v0 = <865000>; + opp-microvolt-speed0-pvs3-v0 = <850000>; + opp-microvolt-speed0-pvs4-v0 = <840000>; + opp-microvolt-speed0-pvs5-v0 = <830000>; + opp-microvolt-speed0-pvs6-v0 = <820000>; + opp-microvolt-speed2-pvs0-v0 = <865000>; + opp-microvolt-speed2-pvs1-v0 = <850000>; + opp-microvolt-speed2-pvs2-v0 = <835000>; + opp-microvolt-speed2-pvs3-v0 = <820000>; + opp-microvolt-speed2-pvs4-v0 = <810000>; + opp-microvolt-speed2-pvs5-v0 = <800000>; + opp-microvolt-speed2-pvs6-v0 = <790000>; + opp-microvolt-speed1-pvs0-v0 = <830000>; + opp-microvolt-speed1-pvs1-v0 = <815000>; + opp-microvolt-speed1-pvs2-v0 = <800000>; + opp-microvolt-speed1-pvs3-v0 = <785000>; + opp-microvolt-speed1-pvs4-v0 = <775000>; + opp-microvolt-speed1-pvs5-v0 = <765000>; + opp-microvolt-speed1-pvs6-v0 = <755000>; + + opp-microamp-speed0-pvs0-v0 = <229>; + opp-microamp-speed0-pvs1-v0 = <229>; + opp-microamp-speed0-pvs2-v0 = <229>; + opp-microamp-speed0-pvs3-v0 = <229>; + opp-microamp-speed0-pvs4-v0 = <229>; + opp-microamp-speed0-pvs5-v0 = <229>; + opp-microamp-speed0-pvs6-v0 = <229>; + opp-microamp-speed2-pvs0-v0 = <223>; + opp-microamp-speed2-pvs1-v0 = <223>; + opp-microamp-speed2-pvs2-v0 = <223>; + opp-microamp-speed2-pvs3-v0 = <223>; + opp-microamp-speed2-pvs4-v0 = <223>; + opp-microamp-speed2-pvs5-v0 = <223>; + opp-microamp-speed2-pvs6-v0 = <223>; + opp-microamp-speed1-pvs0-v0 = <221>; + opp-microamp-speed1-pvs1-v0 = <221>; + opp-microamp-speed1-pvs2-v0 = <221>; + opp-microamp-speed1-pvs3-v0 = <221>; + opp-microamp-speed1-pvs4-v0 = <221>; + opp-microamp-speed1-pvs5-v0 = <221>; + opp-microamp-speed1-pvs6-v0 = <221>; + }; +};
In Certain QCOM SoCs like ipq8064, apq8064, msm8960, msm8974 that has KRAIT processors the voltage/current value of each OPP varies based on the silicon variant in use. operating-points-v2-krait-cpu specifies the phandle to nvmem efuse cells and the operating-points-v2 table for each opp. The qcom-cpufreq driver reads the efuse value from the SoC to provide the required information that is used to determine the voltage and current value for each OPP of operating-points-v2 table when it is parsed by the OPP framework. Signed-off-by: Sricharan R <sricharan@codeaurora.org> --- .../devicetree/bindings/cpufreq/krait-cpufreq.txt | 363 +++++++++++++++++++++ 1 file changed, 363 insertions(+) create mode 100644 Documentation/devicetree/bindings/cpufreq/krait-cpufreq.txt