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