Hi Heiko, while reviewing other dts idle states bindings I spotted the following snippet in arch/arm64/boot/dts/rockchip/rk3368.dtsi: cpu_sleep: cpu-sleep-0 { compatible = "arm,idle-state"; arm,psci-suspend-param = <0x1010000>; entry-latency-us = <0x3fffffff>; exit-latency-us = <0x40000000>; min-residency-us = <0xffffffff>; }; Could you please explain to me how you obtained these residency/latency values ? They make NO sense whatsoever and I am quite tempted to ask you to remove this data from the dts file, it is just wrong. Thanks, Lorenzo