bindings/power/power-domain.yaml

1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/power/power-domain.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10   - Rafael J. Wysocki <rjw@rjwysocki.net>
11   - Kevin Hilman <khilman@kernel.org>
12   - Ulf Hansson <ulf.hansson@linaro.org>
25   \#power-domain-cells property in the PM domain provider node.
29     pattern: "^(power-controller|power-domain|performance-domain)([@-].*)?$"
31   domain-idle-states:
32     $ref: /schemas/types.yaml#/definitions/phandle-array
36       Phandles of idle states that defines the available states for the
37       power-domain provider. The idle state definitions are compatible with the
38       domain-idle-state bindings, specified in ./domain-idle-state.yaml.
40       Note that, the domain-idle-state property reflects the idle states of this
41       PM domain and not the idle states of the devices or sub-domains in the PM
42       domain. Devices and sub-domains have their own idle states independent of
43       the parent domain's idle states. In the absence of this property, the
44       domain would be considered as capable of being powered-on or powered-off.
46   operating-points-v2:
52       phandle. Refer to ../opp/opp-v2-base.yaml for more information.
54   "#power-domain-cells":
61   power-domains:
72   - "#power-domain-cells"
77   - |
78     power: power-controller@12340000 {
79         compatible = "foo,power-controller";
81         #power-domain-cells = <1>;
87   - |
88     parent2: power-controller@12340000 {
89         compatible = "foo,power-controller";
91         #power-domain-cells = <1>;
94     child2: power-controller@12341000 {
95         compatible = "foo,power-controller";
97         power-domains = <&parent2 0>;
98         #power-domain-cells = <1>;
105   - |
106     parent3: power-controller@12340000 {
107         compatible = "foo,power-controller";
109         #power-domain-cells = <0>;
110         domain-idle-states = <&DOMAIN_RET>, <&DOMAIN_PWR_DN>;
113     child3: power-controller@12341000 {
114         compatible = "foo,power-controller";
116         power-domains = <&parent3>;
117         #power-domain-cells = <0>;
118         domain-idle-states = <&DOMAIN_PWR_DN>;
121     domain-idle-states {
122         DOMAIN_RET: domain-retention {
123             compatible = "domain-idle-state";
124             entry-latency-us = <1000>;
125             exit-latency-us = <2000>;
126             min-residency-us = <10000>;
129         DOMAIN_PWR_DN: domain-pwr-dn {
130             compatible = "domain-idle-state";
131             entry-latency-us = <5000>;
132             exit-latency-us = <8000>;
133             min-residency-us = <7000>;