bindings/power/power-domain.yaml

4 $id: http://devicetree.org/schemas/power/power-domain.yaml#
19   This device tree binding can be used to bind PM domain consumer devices with
20   their PM domains provided by PM domain providers. A PM domain provider can be
23   phandle arguments (so called PM domain specifiers) of length specified by the
24   \#power-domain-cells property in the PM domain provider node.
28     pattern: "^(power-controller|power-domain)([@-].*)?$"
30   domain-idle-states:
36       power-domain provider. The idle state definitions are compatible with the
37       domain-idle-state bindings, specified in ./domain-idle-state.yaml.
39       Note that, the domain-idle-state property reflects the idle states of this
40       PM domain and not the idle states of the devices or sub-domains in the PM
41       domain. Devices and sub-domains have their own idle states independent of
42       the parent domain's idle states. In the absence of this property, the
43       domain would be considered as capable of being powered-on or powered-off.
47       Phandles to the OPP tables of power domains provided by a power domain
48       provider. If the provider provides a single power domain only or all
53   "#power-domain-cells":
55       Number of cells in a PM domain specifier. Typically 0 for nodes
56       representing a single PM domain and 1 for nodes providing multiple PM
62       A phandle and PM domain specifier as defined by bindings of the power
64       from another power domain (or have other hardware specific
65       dependencies). For representing such dependency a standard PM domain
67       by the given provider should be subdomains of the domain specified
71   - "#power-domain-cells"
80         #power-domain-cells = <1>;
83     // The node above defines a power controller that is a PM domain provider and
90         #power-domain-cells = <1>;
97         #power-domain-cells = <1>;
102     // domain provided by the 'parent' power controller.
108         #power-domain-cells = <0>;
109         domain-idle-states = <&DOMAIN_RET>, <&DOMAIN_PWR_DN>;
116         #power-domain-cells = <0>;
117         domain-idle-states = <&DOMAIN_PWR_DN>;
120     domain-idle-states {
121         DOMAIN_RET: domain-retention {
122             compatible = "domain-idle-state";
128         DOMAIN_PWR_DN: domain-pwr-dn {
129             compatible = "domain-idle-state";