From 0bd386a45935dc943f85de8140a866bc44082d85 Mon Sep 17 00:00:00 2001 From: David Collins Date: Mon, 28 Mar 2016 11:58:29 -0700 Subject: 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(+) (limited to 'arch/arm/boot') diff --git a/arch/arm/boot/dts/qcom/msm8996pro.dtsi b/arch/arm/boot/dts/qcom/msm8996pro.dtsi index 59ffa3ce88cb..6ddd79794428 100644 --- a/arch/arm/boot/dts/qcom/msm8996pro.dtsi +++ b/arch/arm/boot/dts/qcom/msm8996pro.dtsi @@ -186,6 +186,8 @@ 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 { @@ -481,6 +483,7 @@ qcom,allow-aging-open-loop-voltage-adjustment = <1>; qcom,cpr-dynamic-floor-corner = <1>; + qcom,ldo-min-headroom-voltage = <130000>; }; &pmi8994_s2 { @@ -632,6 +635,14 @@ 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 = -- cgit v1.2.3