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Linux_Drivers/linux_5.10/Documentation/devicetree/bindings/arm/amlogic/pmu.txt
sam.xiang 5c7dd7acc3 [linux] create linux_5.10.4 from T-head official:
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Amlogic Meson8 and Meson8b power-management-unit:
-------------------------------------------------
The pmu is used to turn off and on different power domains of the SoCs
This includes the power to the CPU cores.
Required node properties:
- compatible value : depending on the SoC this should be one of:
"amlogic,meson8-pmu"
"amlogic,meson8b-pmu"
- reg : physical base address and the size of the registers window
Example:
pmu@c81000e4 {
compatible = "amlogic,meson8b-pmu", "syscon";
reg = <0xc81000e0 0x18>;
};