xref: /freebsd/sys/contrib/device-tree/Bindings/mfd/88pm860x.txt (revision 031beb4e239bfce798af17f5fe8dba8bcaf13d99)
1* Marvell 88PM860x Power Management IC
2
3Required parent device properties:
4- compatible : "marvell,88pm860x"
5- reg : the I2C slave address for the 88pm860x chip
6- interrupts : IRQ line for the 88pm860x chip
7- interrupt-controller: describes the 88pm860x as an interrupt controller (has its own domain)
8- #interrupt-cells : should be 1.
9		- The cell is the 88pm860x local IRQ number
10
11Optional parent device properties:
12- marvell,88pm860x-irq-read-clr: inicates whether interrupt status is cleared by read
13- marvell,88pm860x-slave-addr: 88pm860x are two chips solution. <reg> stores the I2C address
14				of one chip, and this property stores the I2C address of
15				another chip.
16
1788pm860x consists of a large and varied group of sub-devices:
18
19Device			 Supply Names	 Description
20------			 ------------	 -----------
2188pm860x-onkey		:		: On key
2288pm860x-rtc		:		: RTC
2388pm8607		:		: Regulators
2488pm860x-backlight	:		: Backlight
2588pm860x-led		:		: Led
2688pm860x-touch		:		: Touchscreen
27
28Example:
29
30	pmic: 88pm860x@34 {
31		compatible = "marvell,88pm860x";
32		reg = <0x34>;
33		interrupts = <4>;
34		interrupt-parent = <&intc>;
35		interrupt-controller;
36		#interrupt-cells = <1>;
37
38		marvell,88pm860x-irq-read-clr;
39		marvell,88pm860x-slave-addr = <0x11>;
40
41		regulators {
42			BUCK1 {
43				regulator-min-microvolt = <1000000>;
44				regulator-max-microvolt = <1500000>;
45				regulator-boot-on;
46				regulator-always-on;
47			};
48			LDO1 {
49				regulator-min-microvolt = <1200000>;
50				regulator-max-microvolt = <2800000>;
51				regulator-boot-on;
52				regulator-always-on;
53			};
54		};
55		rtc {
56			marvell,88pm860x-vrtc = <1>;
57		};
58		touch {
59			marvell,88pm860x-gpadc-prebias = <1>;
60			marvell,88pm860x-gpadc-slot-cycle = <1>;
61			marvell,88pm860x-tsi-prebias = <6>;
62			marvell,88pm860x-pen-prebias = <16>;
63			marvell,88pm860x-pen-prechg = <2>;
64			marvell,88pm860x-resistor-X = <300>;
65		};
66		backlights {
67			backlight-0 {
68				marvell,88pm860x-iset = <4>;
69				marvell,88pm860x-pwm = <3>;
70			};
71			backlight-2 {
72			};
73		};
74		leds {
75			led0-red {
76				marvell,88pm860x-iset = <12>;
77			};
78			led0-green {
79				marvell,88pm860x-iset = <12>;
80			};
81			led0-blue {
82				marvell,88pm860x-iset = <12>;
83			};
84		};
85	};
86