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| author | Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com> | 2017-06-12 16:26:14 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-06-20 12:59:58 +0300 |
| commit | a45509c080a13a2cd7f3a4f5ab8733f57dd8f1a3 (patch) | |
| tree | 5c6823cecd365c92321fc1aa3022915e7839b7a3 | |
| parent | 8d67ae25a9ea206f1ad53561511c1810d7838666 (diff) | |
| download | linux-a45509c080a13a2cd7f3a4f5ab8733f57dd8f1a3.tar.xz | |
[media] dt-bindings: media: Add MAX2175 binding description
Add device tree binding documentation for MAX2175 RF to bits tuner
device.
Signed-off-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
| -rw-r--r-- | Documentation/devicetree/bindings/media/i2c/max2175.txt | 59 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/property-units.txt | 1 |
2 files changed, 60 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/media/i2c/max2175.txt b/Documentation/devicetree/bindings/media/i2c/max2175.txt new file mode 100644 index 000000000000..02b4e9cd7b1b --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/max2175.txt @@ -0,0 +1,59 @@ +Maxim Integrated MAX2175 RF to Bits tuner +----------------------------------------- + +The MAX2175 IC is an advanced analog/digital hybrid-radio receiver with +RF to Bits® front-end designed for software-defined radio solutions. + +Required properties: +-------------------- +- compatible: "maxim,max2175" for MAX2175 RF-to-bits tuner. +- clocks: clock specifier. +- port: child port node corresponding to the I2S output, in accordance with + the video interface bindings defined in + Documentation/devicetree/bindings/media/video-interfaces.txt. The port + node must contain at least one endpoint. + +Optional properties: +-------------------- +- maxim,master : phandle to the master tuner if it is a slave. This + is used to define two tuners in diversity mode + (1 master, 1 slave). By default each tuner is an + individual master. +- maxim,refout-load : load capacitance value (in picofarads) on reference + output drive level. The possible load values are: + 0 (default - refout disabled) + 10 + 20 + 30 + 40 + 60 + 70 +- maxim,am-hiz-filter : empty property indicates the AM Hi-Z filter is used + in this hardware for AM antenna input. + +Example: +-------- + +Board specific DTS file + +/* Fixed XTAL clock node */ +maxim_xtal: clock { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <36864000>; +}; + +/* A tuner device instance under i2c bus */ +max2175_0: tuner@60 { + compatible = "maxim,max2175"; + reg = <0x60>; + clocks = <&maxim_xtal>; + maxim,refout-load = <10>; + + port { + max2175_0_ep: endpoint { + remote-endpoint = <&slave_rx_device>; + }; + }; + +}; diff --git a/Documentation/devicetree/bindings/property-units.txt b/Documentation/devicetree/bindings/property-units.txt index 12278d79f6c0..7c9f6ee918f1 100644 --- a/Documentation/devicetree/bindings/property-units.txt +++ b/Documentation/devicetree/bindings/property-units.txt @@ -28,6 +28,7 @@ Electricity -ohms : Ohms -micro-ohms : micro Ohms -microvolt : micro volts +-picofarads : picofarads Temperature ---------------------------------------- |