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arm64: dts: mediatek: mt8173: Mark the lowest CPU OPPs for suspend

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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
Signed-off-by: Ryan Brue <ryanbrue.dev@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is contained in:
Ryan Brue 2026-10-09 14:44:44 -05:00 committed by Viresh Kumar
parent a4b90518dd
commit 71245acb8c
1 changed files with 2 additions and 0 deletions
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arch/arm64/boot/dts/mediatek/mt8173.dtsi
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@ -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>;