On 22/04/15 17:32, Dan Murphy wrote:
> Add the TI afe4403 heart monitor device tree
> binding documentation. heart_monitors directory
> created under iio.
>
> Signed-off-by: Dan Murphy <dmurphy@xxxxxx>
> ---
> .../bindings/iio/heart_monitor/ti_afe4403.txt | 26 ++++++++++++++++++++++
> 1 file changed, 26 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/iio/heart_monitor/ti_afe4403.txt
>
> diff --git a/Documentation/devicetree/bindings/iio/heart_monitor/ti_afe4403.txt b/Documentation/devicetree/bindings/iio/heart_monitor/ti_afe4403.txt
> new file mode 100644
> index 0000000..b196b17
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/heart_monitor/ti_afe4403.txt
> @@ -0,0 +1,26 @@
> +* Texas Instruments - AFE4403 Heart rate and Pulse Oximeter
> +
> +The device consists of a low-noise receiver channel
> +with an integrated analog-to-digital converter (ADC),
> +an LED transmit section, and diagnostics for sensor and LED fault detection.
> +
> +Required properties:
> + - compatible: Must contain "ti,afe4403".
> + - ste-gpio: GPIO for the spi control line
This gpio needs more info here. From description it sounds like a chip select
and those obviously don't need to be specified at driver level.
> + - data-ready-gpio: GPIO interrupt when the afe4403 has data
> + - led-supply: Chip supply to the device
> +
> +Optional properties:
> + - reset-gpio: GPIO used to reset the device via HW
> +
> +Example:
> +
> +&heart_rate {
> + compatible = "ti,afe4403";
> + ste-gpio = <&gpio1 29 GPIO_ACTIVE_HIGH>;
> + data-ready-gpio = <&gpio1 28 GPIO_ACTIVE_HIGH>;
> + led-supply = <&vbat>;
> +};
> +
> +Technical Datasheet:
> +http://www.ti.com/product/AFE4403/datasheet
>
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