zephyr,generic-pstate

Vendor: The Zephyr Project

Description

Generic Performance State (P-state) binding

Implement a generic P-state device node.

Example configuration:

performance-states {
        pstate_0: pstate_0 {
                compatible = "zephyr,generic-pstate";
                load-threshold = <50>;
                pstate-id = <0>;
        };
        pstate_1: pstate_1 {
                compatible = "zephyr,generic-pstate";
                load-threshold = <20>;
                pstate-id = <1>;
        };
        pstate_2: pstate_2 {
                compatible = "zephyr,generic-pstate";
                load-threshold = <0>;
                pstate-id = <2>;
        };
};

Properties

Node specific propertiesDeprecated node specific propertiesBase properties

Properties not inherited from the base binding file.

Name	Type	Details
pstate-id	int	Identifier of performance state. The state IDs shall be unique among all sibling nodes. It is recommended that they begin at 0 and monotonically increase with decreasing performance (increasing power savings). This property is required.
load-threshold	int	CPU load threshold, in percent, for entering this performance state. Once the CPU load exceeds this threshold, it becomes a valid performance state for the P-state driver to switch to.