Commit 4d33615d authored by Matt Ranostay's avatar Matt Ranostay Committed by Jonathan Cameron
Browse files

iio: light: add MAX30100 oximeter driver support 



MAX30100 is an heart rate and pulse oximeter sensor that works using
two LEDS of different wavelengths, and detecting the light reflected
back.

This patchset adds support for both IR and RED LED channels which can
be processed in userspace to determine heart rate and blood oxygen
levels.

Signed-off-by: default avatarMatt Ranostay <mranostay@gmail.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent b41fa86b

Documentation/devicetree/bindings/iio/health/max30100.txt

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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

  - interrupt-parent: should be the phandle for the interrupt controller

  - interrupts: the sole interrupt generated by the device



  Refer to interrupt-controller/interrupts.txt for generic

  interrupt client node bindings.



Example:



max30100@057 {

	compatible = "maxim,max30100";

	reg = <57>;

	interrupt-parent = <&gpio1>;

	interrupts = <16 2>;

};

drivers/iio/Kconfig

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@@ -69,6 +69,7 @@ source "drivers/iio/dac/Kconfig" 
source "drivers/iio/dummy/Kconfig"

source "drivers/iio/frequency/Kconfig"

source "drivers/iio/gyro/Kconfig"

source "drivers/iio/health/Kconfig"

source "drivers/iio/humidity/Kconfig"

source "drivers/iio/imu/Kconfig"

source "drivers/iio/light/Kconfig"

drivers/iio/Makefile

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@@ -21,6 +21,7 @@ obj-y += dac/ 
obj-y += dummy/

obj-y += gyro/

obj-y += frequency/

obj-y += health/

obj-y += humidity/

obj-y += imu/

obj-y += light/

drivers/iio/health/Kconfig

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#

# Health sensors

#

# When adding new entries keep the list in alphabetical order



menu "Health sensors"



config MAX30100

	tristate "MAX30100 heart rate and pulse oximeter sensor"

	depends on I2C

	select REGMAP_I2C

	select IIO_BUFFER

	select IIO_KFIFO_BUF

	help

	  Say Y here to build I2C interface support for the Maxim

	  MAX30100 heart rate, and pulse oximeter sensor.



	  To compile this driver as a module, choose M here: the

	  module will be called max30100.



endmenu

drivers/iio/health/Makefile

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#

# Makefile for IIO Health sensors

#



# When adding new entries keep the list in alphabetical order



obj-$(CONFIG_MAX30100)		+= max30100.o

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