bindings/mfd/mfd.txt

1 Multi-Function Devices (MFD)
4 more than one non-unique yet varying hardware functionality.
8 - A mixed signal ASIC on an external bus, sometimes a PMIC (Power Management
10   silicon) that handles analog drivers for things like audio amplifiers, LED
14 - A range of memory registers containing "miscellaneous system registers" also
20 - compatible : "simple-mfd" - this signifies that the operating system
23   Similarly to how "simple-bus" indicates when to see subnodes as children for
24   a simple memory-mapped bus.
29 - ranges: Describes the address mapping relationship to the parent. Should set
33 - #address-cells: Specifies the number of cells used to represent physical base
36 - #size-cells: Specifies the number of cells used to represent the size of an
42 	compatible = "syscon", "simple-mfd";
45 	led@8.0 {
46 		compatible = "register-bit-led";
50 		default-state = "on";