Commit 78239a28 authored Jan 30, 2014 by Ke Liu

ARM: dts: msm: change CPR down threshold and quot adjustment for msm8926



The current VDD_APC CPR down thresdhold value of 1 makes the CPR controller
too sensitive to voltage ripple in the VDD_APC supply. This results in the
CPR UP and DOWN interrupts firing repeatedly in an alternating fashion.

Change the CPR down threshold to 2 and also change the CPR turbo and
nominal voltage corner target quotient adjustment values to 72 in order to
eliminate the undesirable CPR interrupt behavior.

CRs-fixed: 607472
Change-Id: I89b5c84c44c2c297f34023b177122441c65161a3
Signed-off-by: Ke Liu <keliu@codeaurora.org>

parent c00e21cd

arch/arm/boot/dts/qcom/msm8926.dtsi

+2 −2

Original line number	Diff line number	Diff line
		@@ -210,7 +210,7 @@
		qcom,pvs-corner-ceiling-fast = <1050000 1050000 1100000>;
		qcom,cpr-step-quotient = <30>;
		qcom,cpr-up-threshold = <0>;
		qcom,cpr-down-threshold = <1>;
		qcom,cpr-down-threshold = <2>;
		qcom,cpr-apc-volt-step = <10000>;
		regulator-min-microvolt = <1>;
		regulator-max-microvolt = <12>;
		@@ -223,7 +223,7 @@
		<1 9 187>,
		<1 10 150>,
		<1 11 75>;
		qcom,cpr-quotient-adjustment = <0 96 96>;
		qcom,cpr-quotient-adjustment = <0 72 72>;
		vdd-apc-optional-prim-supply = <&ncp6335d>;
		vdd-apc-optional-sec-supply = <&fan53555>;
		};