Re: [PATCH v3 3/5] Documentation: dt: iio: add mcp4725/6 dac device binding

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




On 18/10/16 18:43, Tomas Novotny wrote:
> From: Tomas Novotny <tomas@xxxxxxxxxx>
> 
> Signed-off-by: Tomas Novotny <tomas@xxxxxxxxxx>
> Acked-by: Rob Herring <robh@xxxxxxxxxx>
Applied. Thanks,

Jonathan
> ---
>  .../devicetree/bindings/iio/dac/mcp4725.txt        | 35 ++++++++++++++++++++++
>  1 file changed, 35 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/dac/mcp4725.txt
> 
> diff --git a/Documentation/devicetree/bindings/iio/dac/mcp4725.txt b/Documentation/devicetree/bindings/iio/dac/mcp4725.txt
> new file mode 100644
> index 0000000..1bc6c09
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/dac/mcp4725.txt
> @@ -0,0 +1,35 @@
> +Microchip mcp4725 and mcp4726 DAC device driver
> +
> +Required properties:
> +	- compatible: Must be "microchip,mcp4725" or "microchip,mcp4726"
> +	- reg: Should contain the DAC I2C address
> +	- vdd-supply: Phandle to the Vdd power supply. This supply is used as a
> +	  voltage reference on mcp4725. It is used as a voltage reference on
> +	  mcp4726 if there is no vref-supply specified.
> +
> +Optional properties (valid only for mcp4726):
> +	- vref-supply: Optional phandle to the Vref power supply. Vref pin is
> +	  used as a voltage reference when this supply is specified.
> +	- microchip,vref-buffered: Boolean to enable buffering of the external
> +	  Vref pin. This boolean is not valid without the vref-supply. Quoting
> +	  the datasheet: This is offered in cases where the reference voltage
> +	  does not have the current capability not to drop its voltage when
> +	  connected to the internal resistor ladder circuit.
> +
> +Examples:
> +
> +	/* simple mcp4725 */
> +	mcp4725@60 {
> +		compatible = "microchip,mcp4725";
> +		reg = <0x60>;
> +		vdd-supply = <&vdac_vdd>;
> +	};
> +
> +	/* mcp4726 with the buffered external reference voltage */
> +	mcp4726@60 {
> +		compatible = "microchip,mcp4726";
> +		reg = <0x60>;
> +		vdd-supply = <&vdac_vdd>;
> +		vref-supply = <&vdac_vref>;
> +		microchip,vref-buffered;
> +	};
> 

--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]
  Powered by Linux