xref: /freebsd/sys/contrib/device-tree/Bindings/media/i2c/max2175.txt (revision e6bfd18d21b225af6a0ed67ceeaf1293b7b9eba5)
1Maxim Integrated MAX2175 RF to Bits tuner
2-----------------------------------------
3
4The MAX2175 IC is an advanced analog/digital hybrid-radio receiver with
5RF to Bits® front-end designed for software-defined radio solutions.
6
7Required properties:
8--------------------
9- compatible: "maxim,max2175" for MAX2175 RF-to-bits tuner.
10- clocks: clock specifier.
11- port: child port node corresponding to the I2S output, in accordance with
12	the video interface bindings defined in
13	Documentation/devicetree/bindings/media/video-interfaces.txt. The port
14	node must contain at least one endpoint.
15
16Optional properties:
17--------------------
18- maxim,master	      : phandle to the master tuner if it is a slave. This
19			is used to define two tuners in diversity mode
20			(1 master, 1 slave). By default each tuner is an
21			individual master.
22- maxim,refout-load   : load capacitance value (in picofarads) on reference
23			output drive level. The possible load values are:
24			 0 (default - refout disabled)
25			10
26			20
27			30
28			40
29			60
30			70
31- maxim,am-hiz-filter : empty property indicates the AM Hi-Z filter is used
32			in this hardware for AM antenna input.
33
34Example:
35--------
36
37Board specific DTS file
38
39/* Fixed XTAL clock node */
40maxim_xtal: clock {
41	compatible = "fixed-clock";
42	#clock-cells = <0>;
43	clock-frequency = <36864000>;
44};
45
46/* A tuner device instance under i2c bus */
47max2175_0: tuner@60 {
48	compatible = "maxim,max2175";
49	reg = <0x60>;
50	clocks = <&maxim_xtal>;
51	maxim,refout-load = <10>;
52
53	port {
54		max2175_0_ep: endpoint {
55			remote-endpoint = <&slave_rx_device>;
56		};
57	};
58
59};
60