On Wed, Nov 09, 2016 at 03:44:41PM +0000, Ramesh Shanmugasundaram wrote:
> This patch adds driver support for MAX2175 chip. This is Maxim
> Integrated's RF to Bits tuner front end chip designed for software-defined
> radio solutions. This driver exposes the tuner as a sub-device instance
> with standard and custom controls to configure the device.
>
> Signed-off-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@xxxxxxxxxxxxxx>
> ---
> .../devicetree/bindings/media/i2c/max2175.txt | 61 +
It's preferred that bindings are a separate patch.
> drivers/media/i2c/Kconfig | 4 +
> drivers/media/i2c/Makefile | 2 +
> drivers/media/i2c/max2175/Kconfig | 8 +
> drivers/media/i2c/max2175/Makefile | 4 +
> drivers/media/i2c/max2175/max2175.c | 1558 ++++++++++++++++++++
> drivers/media/i2c/max2175/max2175.h | 108 ++
> 7 files changed, 1745 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/media/i2c/max2175.txt
> create mode 100644 drivers/media/i2c/max2175/Kconfig
> create mode 100644 drivers/media/i2c/max2175/Makefile
> create mode 100644 drivers/media/i2c/max2175/max2175.c
> create mode 100644 drivers/media/i2c/max2175/max2175.h
>
> diff --git a/Documentation/devicetree/bindings/media/i2c/max2175.txt b/Documentation/devicetree/bindings/media/i2c/max2175.txt
> new file mode 100644
> index 0000000..69f0dad
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/i2c/max2175.txt
> @@ -0,0 +1,61 @@
> +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: phandle to the fixed xtal clock.
> +- clock-names: name of the fixed xtal clock.
> +- port: child port node of a tuner that defines the local and remote
> + endpoints. The remote endpoint is assumed to be an SDR device
> + that is capable of receiving the digital samples from the tuner.
> +
> +Optional properties:
> +--------------------
> +- maxim,slave : empty property indicates this is a slave of
> + another master tuner. 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-pF: load capacitance value (in pF) on reference
Please add 'pF' to property-units.txt.
> + output drive level. The possible load values are
> + 0pF (default - refout disabled)
> + 10pF
> + 20pF
> + 30pF
> + 40pF
> + 60pF
> + 70pF
> +- maxim,am-hiz : empty property indicates AM Hi-Z filter path is
> + selected for AM antenna input. By default this
> + filter path is not used.
> +
> +Example:
> +--------
> +
> +Board specific DTS file
> +
> +/* Fixed XTAL clock node */
> +maxim_xtal: maximextal {
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>;
> + clock-names = "xtal";
> + maxim,refout-load-pF = <10>;
> +
> + port {
> + max2175_0_ep: endpoint {
> + remote-endpoint = <&slave_rx_v4l2_sdr_device>;
'v4l2' is not something that should appear in a DT.
> + };
> + };
> +
> +};
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