xref: /freebsd/sys/contrib/device-tree/Bindings/mfd/max8925.txt (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)

* Maxim max8925 Power Management IC

Required parent device properties:
- compatible : "maxim,max8925"
- reg : the I2C slave address for the max8925 chip
- interrupts : IRQ line for the max8925 chip
- interrupt-controller: describes the max8925 as an interrupt
  controller (has its own domain)
- #interrupt-cells : should be 1.
	- The cell is the max8925 local IRQ number

Optional parent device properties:
- maxim,tsc-irq: there are 2 IRQ lines for max8925, one is indicated in
  interrupts property, the other is indicated here.

max8925 consists of a large and varied group of sub-devices:

Device			 Supply Names	 Description
------			 ------------	 -----------
max8925-onkey		:		: On key
max8925-rtc		:		: RTC
max8925-regulator	:		: Regulators
max8925-backlight	:		: Backlight
max8925-touch		:		: Touchscreen
max8925-power		:		: Charger

Example:

	pmic: max8925@3c {
		compatible = "maxim,max8925";
		reg = <0x3c>;
		interrupts = <1>;
		interrupt-parent = <&intcmux4>;
		interrupt-controller;
		#interrupt-cells = <1>;
		maxim,tsc-irq = <0>;

		regulators {
			SDV1 {
				regulator-min-microvolt = <637500>;
				regulator-max-microvolt = <1425000>;
				regulator-boot-on;
				regulator-always-on;
			};

			LDO1 {
				regulator-min-microvolt = <750000>;
				regulator-max-microvolt = <3900000>;
				regulator-boot-on;
				regulator-always-on;
			};

		};
		backlight {
			maxim,max8925-dual-string = <0>;
		};
		charger {
			batt-detect = <0>;
			topoff-threshold = <1>;
			fast-charge = <7>;
			no-temp-support = <0>;
			no-insert-detect = <0>;
		};
	};