Kernel-4.18.0-80.el8_pd-samsung

• 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:

• compatible: should be one of the following.
  • samsung,exynos4210-pd - for exynos4210 type power domain.
  • samsung,exynos5433-pd - for exynos5433 type power domain.
• reg: physical base address of the controller and length of memory mapped
  region.
• #power-domain-cells: number of cells in power domain specifier;
  must be 0.

Optional Properties:

• label: Human readable string with domain name. Will be visible in userspace
  to let user to distinguish between multiple domains in SoC.
• power-domains: phandle pointing to the parent power domain, for more details

     see Documentation/devicetree/bindings/power/power_domain.txt
  

Deprecated Properties:

• clocks
• clock-names

Node of a device using power domains must have a power-domains property
defined with a phandle to respective power domain.

Example:

lcd0: power-domain-lcd0 {
    compatible = "samsung,exynos4210-pd";
    reg = <0x10023C00 0x10>;
    #power-domain-cells = <0>;
    label = "LCD0";
};

mfc_pd: power-domain@10044060 {
    compatible = "samsung,exynos4210-pd";
    reg = <0x10044060 0x20>;
    #power-domain-cells = <0>;
    label = "MFC";
};

See Documentation/devicetree/bindings/power/power_domain.txt for description
of consumer-side bindings.