Jpnathan
On 04/26/2015 12:30 PM, Jonathan Cameron wrote:
> 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.
It is a chip select line. There was an issue with this from the device side.
I will need to dig this up again and remember why I did this.
Maybe I can remove it.
Dan
>> + - 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
>>
--
------------------
Dan Murphy
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