ARM: dts: msm: update VDD_APC0/1 CPR loop configurations for sdm845
Reduce the consecutive down setting from 2 to 0 for all threads
on both VDD_APC0 and VDD_APC1 CPRh controllers. This ensures
the that the CPRh controllers settle the supply voltage down to
the closed-loop voltage very quickly after each OSM triggered
corner switch.
Also increase the count repeat setting for both controllers from
1 to 20 in order to avoid oscillating up, down, up, down voltage
stepping due to PFM voltage ripple.
Change-Id: Ie7f832fe36692bfae00cfd1a07d91ea7f49d7d8a
Signed-off-by: David Collins <collinsd@codeaurora.org>
diff --git a/arch/arm64/boot/dts/qcom/sdm845-regulator.dtsi b/arch/arm64/boot/dts/qcom/sdm845-regulator.dtsi
index 6989f326..5c39e86 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-regulator.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-regulator.dtsi
@@ -74,7 +74,7 @@
qcom,cpr-step-quot-init-min = <11>;
qcom,cpr-step-quot-init-max = <12>;
qcom,cpr-count-mode = <0>; /* All at once */
- qcom,cpr-count-repeat = <1>;
+ qcom,cpr-count-repeat = <20>;
qcom,cpr-down-error-step-limit = <1>;
qcom,cpr-up-error-step-limit = <1>;
qcom,cpr-corner-switch-delay-time = <1042>;
@@ -103,7 +103,7 @@
thread@1 {
qcom,cpr-thread-id = <1>;
qcom,cpr-consecutive-up = <0>;
- qcom,cpr-consecutive-down = <2>;
+ qcom,cpr-consecutive-down = <0>;
qcom,cpr-up-threshold = <2>;
qcom,cpr-down-threshold = <2>;
@@ -180,7 +180,7 @@
thread@0 {
qcom,cpr-thread-id = <0>;
qcom,cpr-consecutive-up = <0>;
- qcom,cpr-consecutive-down = <2>;
+ qcom,cpr-consecutive-down = <0>;
qcom,cpr-up-threshold = <2>;
qcom,cpr-down-threshold = <2>;
@@ -264,7 +264,7 @@
qcom,cpr-step-quot-init-min = <9>;
qcom,cpr-step-quot-init-max = <14>;
qcom,cpr-count-mode = <0>; /* All at once */
- qcom,cpr-count-repeat = <1>;
+ qcom,cpr-count-repeat = <20>;
qcom,cpr-down-error-step-limit = <1>;
qcom,cpr-up-error-step-limit = <1>;
qcom,cpr-corner-switch-delay-time = <1042>;
@@ -296,7 +296,7 @@
thread@0 {
qcom,cpr-thread-id = <0>;
qcom,cpr-consecutive-up = <0>;
- qcom,cpr-consecutive-down = <2>;
+ qcom,cpr-consecutive-down = <0>;
qcom,cpr-up-threshold = <2>;
qcom,cpr-down-threshold = <2>;