[PATCH 2/2] arm64: dts: mediatek: mt8173: Mark the lowest CPU OPPs for suspend

[Ryan Brue]

Both clusters otherwise enter system sleep at whatever OPP the governor
last chose. On the Amazon Fire HD 10 (2017), entering suspend-to-RAM with
both clusters at their highest OPP measured 63.5 mA, against 52.0 mA
when they suspend at 507 MHz. Mark the 507 MHz OPP of each cluster, the
lowest in both tables, as the one to suspend at. mediatek-cpufreq uses
it for system sleep, and a kernel without that support ignores it.

Assisted-by: LLM
---
 arch/arm64/boot/dts/mediatek/mt8173.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
index 78c2ccd5be13..7f1af15cb934 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
@@ -56,6 +56,7 @@ cluster0_opp: opp-table-0 {
 		opp-507000000 {
 			opp-hz = /bits/ 64 <507000000>;
 			opp-microvolt = <859000>;
+			opp-suspend;
 		};
 		opp-702000000 {
 			opp-hz = /bits/ 64 <702000000>;
@@ -93,6 +94,7 @@ cluster1_opp: opp-table-1 {
 		opp-507000000 {
 			opp-hz = /bits/ 64 <507000000>;
 			opp-microvolt = <828000>;
+			opp-suspend;
 		};
 		opp-702000000 {
 			opp-hz = /bits/ 64 <702000000>;

-- 
2.55.0