Commit ecd9e357 authored Nov 19, 2021 by Jishnu Prakash Committed by Gerrit - the friendly Code Review server Nov 21, 2021

ARM: dts: qcom: add mode control for S8B regulator for yupik

PMIC PM8350 SMPS regulator S8B is a parent of several LDO
regulators.  Barring an application processor mode request, the
S8B mode transitions from AUTO to retention when entering AOSS
sleep.  This can cause brown-outs if any of the child LDOs is
drawing significant current.
Add mode control support for S8B so that application processor
consumers can vote to keep S8B in AUTO mode when needed.  This
avoids power faults during AOSS sleep.

Change-Id: I15473250b44aa1c07a0a7013eb49130e0f016ed4

parent 7d890ddb

qcom/yupik-regulators.dtsi

+6 −0

Original line number	Diff line number	Diff line
		@@ -46,6 +46,11 @@
		rpmh-regulator-smpb8 {
		compatible = "qcom,rpmh-vrm-regulator";
		qcom,resource-name = "smpb8";
		qcom,regulator-type = "pmic5-hfsmps";
		qcom,supported-modes =
		<RPMH_REGULATOR_MODE_RET
		RPMH_REGULATOR_MODE_AUTO>;
		qcom,mode-threshold-currents = <0 200000>;
		S8B:
		pm7325_s8: regulator-pm7325-s8 {
		regulator-name = "pm7325_s8";
		@@ -53,6 +58,7 @@
		regulator-min-microvolt = <1200000>;
		regulator-max-microvolt = <1500000>;
		qcom,init-voltage = <1272000>;
		qcom,init-mode = <RPMH_REGULATOR_MODE_RET>;
		};
		};