2012-01-26 23:25:00 -07:00
|
|
|
* Samsung Exynos Power Domains
|
|
|
|
|
|
|
|
Exynos processors include support for multiple power domains which are used
|
|
|
|
to gate power to one or more peripherals on the processor.
|
|
|
|
|
|
|
|
Required Properties:
|
2012-11-21 08:21:17 -07:00
|
|
|
- compatible: should be one of the following.
|
2012-01-26 23:25:00 -07:00
|
|
|
* samsung,exynos4210-pd - for exynos4210 type power domain.
|
2017-01-25 04:55:35 -07:00
|
|
|
* samsung,exynos5433-pd - for exynos5433 type power domain.
|
2012-01-26 23:25:00 -07:00
|
|
|
- reg: physical base address of the controller and length of memory mapped
|
|
|
|
region.
|
2014-09-19 12:27:43 -06:00
|
|
|
- #power-domain-cells: number of cells in power domain specifier;
|
|
|
|
must be 0.
|
2012-01-26 23:25:00 -07:00
|
|
|
|
2014-07-10 17:02:15 -06:00
|
|
|
Optional Properties:
|
2017-01-30 05:18:59 -07:00
|
|
|
- label: Human readable string with domain name. Will be visible in userspace
|
|
|
|
to let user to distinguish between multiple domains in SoC.
|
2015-02-04 07:44:15 -07:00
|
|
|
- power-domains: phandle pointing to the parent power domain, for more details
|
|
|
|
see Documentation/devicetree/bindings/power/power_domain.txt
|
2014-07-10 17:02:15 -06:00
|
|
|
|
2018-03-06 07:33:11 -07:00
|
|
|
Deprecated Properties:
|
|
|
|
- clocks
|
|
|
|
- clock-names
|
|
|
|
|
2015-01-23 21:16:15 -07:00
|
|
|
Node of a device using power domains must have a power-domains property
|
2012-11-21 08:21:17 -07:00
|
|
|
defined with a phandle to respective power domain.
|
|
|
|
|
2012-01-26 23:25:00 -07:00
|
|
|
Example:
|
|
|
|
|
|
|
|
lcd0: power-domain-lcd0 {
|
|
|
|
compatible = "samsung,exynos4210-pd";
|
|
|
|
reg = <0x10023C00 0x10>;
|
2014-09-19 12:27:43 -06:00
|
|
|
#power-domain-cells = <0>;
|
2017-01-30 05:18:59 -07:00
|
|
|
label = "LCD0";
|
2012-01-26 23:25:00 -07:00
|
|
|
};
|
2012-11-21 08:21:17 -07:00
|
|
|
|
2014-07-10 17:02:15 -06:00
|
|
|
mfc_pd: power-domain@10044060 {
|
|
|
|
compatible = "samsung,exynos4210-pd";
|
|
|
|
reg = <0x10044060 0x20>;
|
2014-09-19 12:27:43 -06:00
|
|
|
#power-domain-cells = <0>;
|
2017-01-30 05:18:59 -07:00
|
|
|
label = "MFC";
|
2014-07-10 17:02:15 -06:00
|
|
|
};
|
|
|
|
|
2014-09-19 12:27:43 -06:00
|
|
|
See Documentation/devicetree/bindings/power/power_domain.txt for description
|
|
|
|
of consumer-side bindings.
|