1 * Maxim MAX310X advanced Universal Asynchronous Receiver-Transmitter (UART)
2 
3 Required properties:
4 - compatible: Should be one of the following:
5   - "maxim,max3107" for Maxim MAX3107,
6   - "maxim,max3108" for Maxim MAX3108,
7   - "maxim,max3109" for Maxim MAX3109,
8   - "maxim,max14830" for Maxim MAX14830.
9 - reg: SPI chip select number.
10 - interrupts: Specifies the interrupt source of the parent interrupt
11   controller. The format of the interrupt specifier depends on the
12   parent interrupt controller.
13 - clocks: phandle to the IC source clock.
14 - clock-names: Should be "xtal" if clock is an external crystal or
15   "osc" if an external clock source is used.
16 
17 Optional properties:
18 - gpio-controller: Marks the device node as a GPIO controller.
19 - #gpio-cells: Should be two. The first cell is the GPIO number and
20   the second cell is used to specify the GPIO polarity:
21     0 = active high,
22     1 = active low.
23 
24 Example:
25 
26 / {
27 	clocks {
28 		spi_uart_clk: osc_max14830 {
29 			compatible = "fixed-clock";
30 			#clock-cells = <0>;
31 			clock-frequency = <3686400>;
32 		};
33 
34 	};
35 };
36 
37 &spi0 {
38 	max14830: max14830@0 {
39 		compatible = "maxim,max14830";
40 		reg = <0>;
41 		clocks = <&spi_uart_clk>;
42 		clock-names = "osc";
43 		interrupt-parent = <&gpio3>;
44 		interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
45 		gpio-controller;
46 		#gpio-cells = <2>;
47 	};
48 };
49