| Hisilicon Hi655x Power Management Integrated Circuit (PMIC) |
| |
| The hardware layout for access PMIC Hi655x from AP SoC Hi6220. |
| Between PMIC Hi655x and Hi6220, the physical signal channel is SSI. |
| We can use memory-mapped I/O to communicate. |
| |
| +----------------+ +-------------+ |
| | | | | |
| | Hi6220 | SSI bus | Hi655x | |
| | |-------------| | |
| | |(REGMAP_MMIO)| | |
| +----------------+ +-------------+ |
| |
| Required properties: |
| - compatible: Should be "hisilicon,hi655x-pmic". |
| - reg: Base address of PMIC on Hi6220 SoC. |
| - interrupt-controller: Hi655x has internal IRQs (has own IRQ domain). |
| - pmic-gpios: The GPIO used by PMIC IRQ. |
| - #clock-cells: From common clock binding; shall be set to 0 |
| |
| Optional properties: |
| - clock-output-names: From common clock binding to override the |
| default output clock name |
| |
| Example: |
| pmic: pmic@f8000000 { |
| compatible = "hisilicon,hi655x-pmic"; |
| reg = <0x0 0xf8000000 0x0 0x1000>; |
| interrupt-controller; |
| #interrupt-cells = <2>; |
| pmic-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>; |
| #clock-cells = <0>; |
| } |
