Lines Matching +full:power +full:- +full:domain +full:- +full:node

1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/dvfs/performance-domain.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10   - Sudeep Holla <sudeep.holla@arm.com>
14   CPUs that run in the same performance domain. Performance domains must not
15   be confused with power domains. A performance domain is defined by a set
17   performance domain, there is a single point of control that affects all the
18   devices in the domain, making it impossible to set the performance level of
19   an individual device in the domain independently from other devices in
20   that domain. For example, a set of CPUs that share a voltage domain, and
22   domain.
24   This device tree binding can be used to bind performance domain consumer
25   devices with their performance domains provided by performance domain
26   providers. A performance domain provider can be represented by any node in
28   node can refer to the provider by a phandle and a set of phandle arguments
29   (so called performance domain specifiers) of length specified by the
30   \#performance-domain-cells property in the performance domain provider node.
35   "#performance-domain-cells":
37       Number of cells in a performance domain specifier. Typically 0 for nodes
38       representing a single performance domain and 1 for nodes providing
44   performance-domains:
45     $ref: /schemas/types.yaml#/definitions/phandle-array
47       A phandle and performance domain specifier as defined by bindings of the
53   - |
55         #address-cells = <2>;
56         #size-cells = <2>;
58         performance: performance-controller@11bc00 {
59             compatible = "mediatek,cpufreq-hw";
62             #performance-domain-cells = <1>;
66     // The node above defines a performance controller that is a performance
67     // domain provider and expects one cell as its phandle argument.
70         #address-cells = <2>;
71         #size-cells = <0>;
75             compatible = "arm,cortex-a57";
77             performance-domains = <&performance 1>;