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diff --git a/Documentation/devicetree/bindings/iio/health/afe4403.txt b/Documentation/devicetree/bindings/iio/health/afe4403.txt new file mode 100644 index 000000000..8e412054d --- /dev/null +++ b/Documentation/devicetree/bindings/iio/health/afe4403.txt @@ -0,0 +1,33 @@ +Texas Instruments AFE4403 Heart rate and Pulse Oximeter + +Required properties: + - compatible : Should be "ti,afe4403". + - reg : SPI chip select address of device. + - tx-supply : Regulator supply to transmitting LEDs. + - interrupts : The interrupt line the device ADC_RDY pin is + connected to. For details refer to, + ../../interrupt-controller/interrupts.txt. + +Optional properties: + - reset-gpios : GPIO used to reset the device. + For details refer to, ../../gpio/gpio.txt. + +For other required and optional properties of SPI slave nodes +please refer to ../../spi/spi-bus.txt. + +Example: + +&spi0 { + heart_mon@0 { + compatible = "ti,afe4403"; + reg = <0>; + spi-max-frequency = <10000000>; + + tx-supply = <&vbat>; + + interrupt-parent = <&gpio1>; + interrupts = <28 IRQ_TYPE_EDGE_RISING>; + + reset-gpios = <&gpio1 16 GPIO_ACTIVE_LOW>; + }; +}; diff --git a/Documentation/devicetree/bindings/iio/health/afe4404.txt b/Documentation/devicetree/bindings/iio/health/afe4404.txt new file mode 100644 index 000000000..0b52830a0 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/health/afe4404.txt @@ -0,0 +1,29 @@ +Texas Instruments AFE4404 Heart rate and Pulse Oximeter + +Required properties: + - compatible : Should be "ti,afe4404". + - reg : I2C address of the device. + - tx-supply : Regulator supply to transmitting LEDs. + - interrupts : The interrupt line the device ADC_RDY pin is + connected to. For details refer to, + ../interrupt-controller/interrupts.txt. + +Optional properties: + - reset-gpios : GPIO used to reset the device. + For details refer to, ../gpio/gpio.txt. + +Example: + +&i2c2 { + heart_mon@58 { + compatible = "ti,afe4404"; + reg = <0x58>; + + tx-supply = <&vbat>; + + interrupt-parent = <&gpio1>; + interrupts = <28 IRQ_TYPE_EDGE_RISING>; + + reset-gpios = <&gpio1 16 GPIO_ACTIVE_LOW>; + }; +}; diff --git a/Documentation/devicetree/bindings/iio/health/max30100.txt b/Documentation/devicetree/bindings/iio/health/max30100.txt new file mode 100644 index 000000000..0054908a6 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/health/max30100.txt @@ -0,0 +1,28 @@ +Maxim MAX30100 heart rate and pulse oximeter sensor + +* https://datasheets.maximintegrated.com/en/ds/MAX30100.pdf + +Required properties: + - compatible: must be "maxim,max30100" + - reg: the I2C address of the sensor + - interrupts: the sole interrupt generated by the device + + Refer to interrupt-controller/interrupts.txt for generic + interrupt client node bindings. + +Optional properties: + - maxim,led-current-microamp: configuration for LED current in microamperes + while the engine is running. First indexed value is the configuration for + the RED LED, and second value is for the IR LED. + + Refer to the datasheet for the allowed current values. + +Example: + +max30100@57 { + compatible = "maxim,max30100"; + reg = <0x57>; + maxim,led-current-microamp = <24000 50000>; + interrupt-parent = <&gpio1>; + interrupts = <16 2>; +}; diff --git a/Documentation/devicetree/bindings/iio/health/max30102.txt b/Documentation/devicetree/bindings/iio/health/max30102.txt new file mode 100644 index 000000000..7ef7ae40a --- /dev/null +++ b/Documentation/devicetree/bindings/iio/health/max30102.txt @@ -0,0 +1,33 @@ +Maxim MAX30102 heart rate and pulse oximeter sensor +Maxim MAX30105 optical particle-sensing module + +* https://datasheets.maximintegrated.com/en/ds/MAX30102.pdf +* https://datasheets.maximintegrated.com/en/ds/MAX30105.pdf + +Required properties: + - compatible: must be "maxim,max30102" or "maxim,max30105" + - reg: the I2C address of the sensor + - interrupts: the sole interrupt generated by the device + + Refer to interrupt-controller/interrupts.txt for generic + interrupt client node bindings. + +Optional properties: + - maxim,red-led-current-microamp: configuration for red LED current + - maxim,ir-led-current-microamp: configuration for IR LED current + - maxim,green-led-current-microamp: configuration for green LED current + (max30105 only) + + Note that each step is approximately 200 microamps, ranging from 0 uA to + 50800 uA. + +Example: + +max30102@57 { + compatible = "maxim,max30102"; + reg = <0x57>; + maxim,red-led-current-microamp = <7000>; + maxim,ir-led-current-microamp = <7000>; + interrupt-parent = <&gpio1>; + interrupts = <16 2>; +}; |