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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:
34 power-domain provider. The idle state definitions are compatible with the
35 domain-idle-state bindings, specified in ./domain-idle-state.yaml.
37 Note that, the domain-idle-state property reflects the idle states of this
38 PM domain and not the idle states of the devices or sub-domains in the PM
39 domain. Devices and sub-domains have their own idle states independent of
40 the parent domain's idle states. In the absence of this property, the
41 domain would be considered as capable of being powered-on or powered-off.
46 Phandles to the OPP tables of power domains provided by a power domain
47 provider. If the provider provides a single power domain only or all
52 "#power-domain-cells":
54 Number of cells in a PM domain specifier. Typically 0 for nodes
55 representing a single PM domain and 1 for nodes providing multiple PM
61 A phandle and PM domain specifier as defined by bindings of the power
63 from another power domain (or have other hardware specific
64 dependencies). For representing such dependency a standard PM domain
66 by the given provider should be subdomains of the domain specified
70 - "#power-domain-cells"
79 #power-domain-cells = <1>;
82 // The node above defines a power controller that is a PM domain provider and
89 #power-domain-cells = <1>;
96 #power-domain-cells = <1>;
101 // domain provided by the 'parent' power controller.
107 #power-domain-cells = <0>;
108 domain-idle-states = <&DOMAIN_RET>, <&DOMAIN_PWR_DN>;
115 #power-domain-cells = <0>;
116 domain-idle-states = <&DOMAIN_PWR_DN>;
119 domain-idle-states {
120 DOMAIN_RET: domain-retention {
121 compatible = "domain-idle-state";
127 DOMAIN_PWR_DN: domain-pwr-dn {
128 compatible = "domain-idle-state";