diff options
Diffstat (limited to 'dts/Bindings/mfd/hisilicon,hi655x.txt')
| -rw-r--r-- | dts/Bindings/mfd/hisilicon,hi655x.txt | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/dts/Bindings/mfd/hisilicon,hi655x.txt b/dts/Bindings/mfd/hisilicon,hi655x.txt new file mode 100644 index 0000000000..05485699d7 --- /dev/null +++ b/dts/Bindings/mfd/hisilicon,hi655x.txt @@ -0,0 +1,27 @@ +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. + +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>; + } |