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1* Samsung Exynos Power Domains
2
3Exynos processors include support for multiple power domains which are used
4to gate power to one or more peripherals on the processor.
5
6Required Properties:
7- compatible: should be one of the following.
8 * samsung,exynos4210-pd - for exynos4210 type power domain.
9 * samsung,exynos5433-pd - for exynos5433 type power domain.
10- reg: physical base address of the controller and length of memory mapped
11 region.
12- #power-domain-cells: number of cells in power domain specifier;
13 must be 0.
14
15Optional Properties:
16- label: Human readable string with domain name. Will be visible in userspace
17 to let user to distinguish between multiple domains in SoC.
18- power-domains: phandle pointing to the parent power domain, for more details
19 see Documentation/devicetree/bindings/power/power_domain.txt
20
21Deprecated Properties:
22- clocks
23- clock-names
24
25Node of a device using power domains must have a power-domains property
26defined with a phandle to respective power domain.
27
28Example:
29
30 lcd0: power-domain-lcd0 {
31 compatible = "samsung,exynos4210-pd";
32 reg = <0x10023C00 0x10>;
33 #power-domain-cells = <0>;
34 label = "LCD0";
35 };
36
37 mfc_pd: power-domain@10044060 {
38 compatible = "samsung,exynos4210-pd";
39 reg = <0x10044060 0x20>;
40 #power-domain-cells = <0>;
41 label = "MFC";
42 };
43
44See Documentation/devicetree/bindings/power/power_domain.txt for description
45of consumer-side bindings.