| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | Maxim Integrated MAX2175 RF to Bits tuner |
| 2 | ----------------------------------------- |
| 3 | |
| 4 | The MAX2175 IC is an advanced analog/digital hybrid-radio receiver with |
| 5 | RF to Bits® front-end designed for software-defined radio solutions. |
| 6 | |
| 7 | Required 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 | |
| 16 | Optional 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 | |
| 34 | Example: |
| 35 | -------- |
| 36 | |
| 37 | Board specific DTS file |
| 38 | |
| 39 | /* Fixed XTAL clock node */ |
| 40 | maxim_xtal: clock { |
| 41 | compatible = "fixed-clock"; |
| 42 | #clock-cells = <0>; |
| 43 | clock-frequency = <36864000>; |
| 44 | }; |
| 45 | |
| 46 | /* A tuner device instance under i2c bus */ |
| 47 | max2175_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 | }; |