xref: /kernel/linux/linux-5.10/Documentation/devicetree/bindings/mfd/88pm860x.txt

* Marvell 88PM860x Power Management IC

Required parent device properties:
- compatible : "marvell,88pm860x"
- reg : the I2C slave address for the 88pm860x chip
- interrupts : IRQ line for the 88pm860x chip
- interrupt-controller: describes the 88pm860x as an interrupt controller (has its own domain)
- #interrupt-cells : should be 1.
		- The cell is the 88pm860x local IRQ number

Optional parent device properties:
- marvell,88pm860x-irq-read-clr: inicates whether interrupt status is cleared by read
- marvell,88pm860x-slave-addr: 88pm860x are two chips solution. <reg> stores the I2C address
				of one chip, and this property stores the I2C address of
				another chip.

88pm860x consists of a large and varied group of sub-devices:

Device			 Supply Names	 Description
------			 ------------	 -----------
88pm860x-onkey		:		: On key
88pm860x-rtc		:		: RTC
88pm8607		:		: Regulators
88pm860x-backlight	:		: Backlight
88pm860x-led		:		: Led
88pm860x-touch		:		: Touchscreen

Example:

	pmic: 88pm860x@34 {
		compatible = "marvell,88pm860x";
		reg = <0x34>;
		interrupts = <4>;
		interrupt-parent = <&intc>;
		interrupt-controller;
		#interrupt-cells = <1>;

		marvell,88pm860x-irq-read-clr;
		marvell,88pm860x-slave-addr = <0x11>;

		regulators {
			BUCK1 {
				regulator-min-microvolt = <1000000>;
				regulator-max-microvolt = <1500000>;
				regulator-boot-on;
				regulator-always-on;
			};
			LDO1 {
				regulator-min-microvolt = <1200000>;
				regulator-max-microvolt = <2800000>;
				regulator-boot-on;
				regulator-always-on;
			};
		};
		rtc {
			marvell,88pm860x-vrtc = <1>;
		};
		touch {
			marvell,88pm860x-gpadc-prebias = <1>;
			marvell,88pm860x-gpadc-slot-cycle = <1>;
			marvell,88pm860x-tsi-prebias = <6>;
			marvell,88pm860x-pen-prebias = <16>;
			marvell,88pm860x-pen-prechg = <2>;
			marvell,88pm860x-resistor-X = <300>;
		};
		backlights {
			backlight-0 {
				marvell,88pm860x-iset = <4>;
				marvell,88pm860x-pwm = <3>;
			};
			backlight-2 {
			};
		};
		leds {
			led0-red {
				marvell,88pm860x-iset = <12>;
			};
			led0-green {
				marvell,88pm860x-iset = <12>;
			};
			led0-blue {
				marvell,88pm860x-iset = <12>;
			};
		};
	};