From 80e624f1738b514d0cc69343e4dc6e64ea498ae1 Mon Sep 17 00:00:00 2001 From: David Collins Date: Mon, 28 Mar 2016 11:58:29 -0700 Subject: [PATCH] ARM: dts: msm: reduce CPU LDO headroom voltage for msm8996pro Hardware characterization has shown that the CPU LDOs can operate safely with less than 150 mV of headroom voltage. Reduce the CPU LDO minimum allowed headroom voltage for both the power cluster and the performance cluster in order to save power by allowing LDO usage in more situations. Change-Id: I72f28569d4719540fc84cf65d8783bbfec9435ad CRs-Fixed: 989555 Signed-off-by: David Collins --- arch/arm/boot/dts/qcom/msm8996pro.dtsi | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm/boot/dts/qcom/msm8996pro.dtsi b/arch/arm/boot/dts/qcom/msm8996pro.dtsi index d1f4f21da31a..9dd83bc38f43 100644 --- a/arch/arm/boot/dts/qcom/msm8996pro.dtsi +++ b/arch/arm/boot/dts/qcom/msm8996pro.dtsi @@ -271,6 +271,8 @@ qcom,cpr-aging-ro-scaling-factor = <3200>; qcom,allow-aging-voltage-adjustment = <1>; qcom,allow-aging-open-loop-voltage-adjustment = <1>; + + qcom,ldo-min-headroom-voltage = <80000>; }; &apc0_cbf_vreg { @@ -700,6 +702,7 @@ qcom,allow-aging-open-loop-voltage-adjustment = <1>; qcom,cpr-dynamic-floor-corner = <1>; + qcom,ldo-min-headroom-voltage = <130000>; }; &pmi8994_s2 { @@ -906,6 +909,14 @@ qcom,allow-aging-open-loop-voltage-adjustment = <1>; }; +&kryo0_vreg { + qcom,ldo-headroom-voltage = <80000>; +}; + +&kryo1_vreg { + qcom,ldo-headroom-voltage = <130000>; +}; + &clock_cpu { compatible = "qcom,cpu-clock-8996-pro"; qcom,pwrcl-speedbin0-v0 = -- 2.11.0