bindings/power/power-domain.yaml

1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/power/power-domain.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10   - Rafael J. Wysocki <rjw@rjwysocki.net>
11   - Kevin Hilman <khilman@kernel.org>
12   - Ulf Hansson <ulf.hansson@linaro.org>
24   \#power-domain-cells property in the PM domain provider node.
28     pattern: "^(power-controller|power-domain)([@-].*)?$"
30   domain-idle-states:
31     $ref: /schemas/types.yaml#/definitions/phandle-array
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
43       domain would be considered as capable of being powered-on or powered-off.
45   operating-points-v2:
50       then this shall contain a single phandle. Refer to ../opp/opp-v2-base.yaml
53   "#power-domain-cells":
60   power-domains:
71   - "#power-domain-cells"
76   - |
77     power: power-controller@12340000 {
78         compatible = "foo,power-controller";
80         #power-domain-cells = <1>;
86   - |
87     parent2: power-controller@12340000 {
88         compatible = "foo,power-controller";
90         #power-domain-cells = <1>;
93     child2: power-controller@12341000 {
94         compatible = "foo,power-controller";
96         power-domains = <&parent2 0>;
97         #power-domain-cells = <1>;
104   - |
105     parent3: power-controller@12340000 {
106         compatible = "foo,power-controller";
108         #power-domain-cells = <0>;
109         domain-idle-states = <&DOMAIN_RET>, <&DOMAIN_PWR_DN>;
112     child3: power-controller@12341000 {
113         compatible = "foo,power-controller";
115         power-domains = <&parent3>;
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";
123             entry-latency-us = <1000>;
124             exit-latency-us = <2000>;
125             min-residency-us = <10000>;
128         DOMAIN_PWR_DN: domain-pwr-dn {
129             compatible = "domain-idle-state";
130             entry-latency-us = <5000>;
131             exit-latency-us = <8000>;
132             min-residency-us = <7000>;