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Commit f80f55fb authored by David Collins's avatar David Collins
Browse files

ARM: dts: msm: specify dynamic VDD_APCC CPR floor voltages for msm8996v2 



Specify a maximum floor to ceiling voltage range for each
VDD_APCC corner.  Also reduce the fixed floor voltages to 470 mV
which is the absolute minimum functional voltage.  This ensures
that closed-loop CPR is able to drive the VDD_APCC voltage lower
than the previously defined fixed floor voltages.

Change-Id: I55722dde6080559da2a622b88f3bc7225c9888bd
Signed-off-by: default avatarDavid Collins <collinsd@codeaurora.org>
parent 0b84c10a

arch/arm/boot/dts/qcom/msm8996-regulator.dtsi

+26 −12
Original line number Diff line number Diff line
@@ -495,13 +495,13 @@ 
			compatible = "qcom,spm-regulator";

			reg = <0x3200 0x100>;

			regulator-name = "pm8994_s11";

			regulator-min-microvolt = <520000>;

			regulator-min-microvolt = <470000>;

			regulator-max-microvolt = <1015000>;

			qcom,cpu-num = <0>;



			pm8994_s11_limit: avs-limit-regulator {

				regulator-name = "pm8994_s11_avs_limit";

				regulator-min-microvolt = <520000>;

				regulator-min-microvolt = <470000>;

				regulator-max-microvolt = <1015000>;

			};

		};
@@ -607,10 +607,16 @@ 
					 905000 1015000 1015000 1015000 1015000

					1015000 1015000 1015000 1015000>;

				qcom,cpr-voltage-floor =

					<520000  550000  555000  565000  585000

					 615000  635000  655000  690000  720000

					 740000  750000  760000  770000  780000

					 790000  815000  840000  850000>;

					<470000  470000  470000  470000  470000

					 470000  470000  470000  470000  470000

					 470000  470000  470000  470000  470000

					 470000  470000  470000  470000>;

				qcom,cpr-floor-to-ceiling-max-range =

					 <80000   80000   80000   80000   80000

					  80000   80000   80000   80000   80000

					  80000   80000   80000   80000   80000

					  80000   80000   80000   80000>;



				qcom,corner-frequencies =

					<192000000  268800000  307200000

					 345600000  403200000  480000000
@@ -664,8 +670,11 @@ 
				       <605000  670000  745000  745000  745000

					905000  905000  905000  905000 1015000>;

				qcom,cpr-voltage-floor =

				       <520000  545000  565000  595000  635000

					660000  690000  730000  750000  850000>;

				       <470000  470000  470000  470000  470000

					470000  470000  470000  470000  470000>;

				qcom,cpr-floor-to-ceiling-max-range =

					<80000   80000   80000   80000   80000

					 80000   80000   80000   80000   80000>;



				qcom,corner-frequencies =

					<150000000  307200000  384000000
@@ -730,10 +739,15 @@ 
					 905000 1015000 1015000 1015000 1015000

					1015000 1015000 1015000>;

				qcom,cpr-voltage-floor =

					<520000  530000  545000  590000  620000

					 635000  660000  685000  700000  730000

					 740000  750000  765000  790000  805000

					 815000  830000  850000>;

					<470000  470000  470000  470000  470000

					 470000  470000  470000  470000  470000

					 470000  470000  470000  470000  470000

					 470000  470000  470000>;

				qcom,cpr-floor-to-ceiling-max-range =

					 <80000   80000   80000   80000   80000

					  80000   80000   80000   80000   80000

					  80000   80000   80000   80000   80000

					  80000   80000   80000>;



				qcom,corner-frequencies =

					<307200000  345600000  403200000

arch/arm/boot/dts/qcom/msm8996-v1.dtsi

+22 −0
Original line number Diff line number Diff line
@@ -53,6 +53,14 @@ 
	status = "disabled";

};



&pm8994_s11 {

	regulator-min-microvolt = <520000>;

};



&pm8994_s11_limit {

	regulator-min-microvolt = <520000>;

};



/* Ensure that both possible VDD_GFX supplies cannot be disabled. */

&pmi8994_s2 {

	regulator-always-on;
@@ -65,12 +73,21 @@ 
&apc0_pwrcl_vreg {

	qcom,cpr-fuse-combos = <2>;

	qcom,ldo-max-voltage = <783000>;

	qcom,cpr-voltage-floor =

		<520000 550000 555000 565000 585000 615000 635000 655000 690000

		 720000 740000 750000 760000 770000 780000 790000 815000 840000

		 850000>;

	/delete-property/ qcom,cpr-floor-to-ceiling-max-range;

	qcom,cpr-open-loop-voltage-fuse-adjustment =   <0 0 0 0 0>;

	qcom,cpr-closed-loop-voltage-fuse-adjustment = <0 0 0 0 0>;

};



&apc0_cbf_vreg {

	qcom,cpr-fuse-combos = <2>;

	qcom,cpr-voltage-floor =

		<520000 545000 565000 595000 635000 660000 690000 730000 750000

		 850000>;

	/delete-property/ qcom,cpr-floor-to-ceiling-max-range;

	qcom,cpr-open-loop-voltage-fuse-adjustment =   <0 0 0 0 0>;

	qcom,cpr-closed-loop-voltage-fuse-adjustment = <0 0 0 0 0>;

};
@@ -78,6 +95,11 @@ 
&apc1_vreg {

	qcom,cpr-fuse-combos = <2>;

	qcom,ldo-max-voltage = <780000>;

	qcom,cpr-voltage-floor =

		<520000 530000 545000 590000 620000 635000 660000 685000 700000

		 730000 740000 750000 765000 790000 805000 815000 830000

		 850000>;

	/delete-property/ qcom,cpr-floor-to-ceiling-max-range;

	qcom,cpr-open-loop-voltage-fuse-adjustment =   <0 0 0 5000 0>;

	qcom,cpr-closed-loop-voltage-fuse-adjustment = <0 0 0 20000 0>;

};