From 5247dd46cf1c2e3300545ea102b866a46aaddbc3 Mon Sep 17 00:00:00 2001
From: Matt Ranostay <matt@ranostay.consulting>
Date: Sat, 4 Feb 2017 02:22:50 -0800
Subject: [PATCH] devicetree: add documentation for MAX30102 oximeter
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Matt Ranostay <matt@ranostay.consulting>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
.../bindings/iio/health/max30102.txt | 30 +++++++++++++++++++
1 file changed, 30 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/health/max30102.txt
diff --git a/Documentation/devicetree/bindings/iio/health/max30102.txt b/Documentation/devicetree/bindings/iio/health/max30102.txt
new file mode 100644
index 0000000000000..c695e7cbeefb9
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/health/max30102.txt
@@ -0,0 +1,30 @@
+Maxim MAX30102 heart rate and pulse oximeter sensor
+
+* https://datasheets.maximintegrated.com/en/ds/MAX30102.pdf
+
+Required properties:
+ - compatible: must be "maxim,max30102"
+ - 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.
+
+Optional properties:
+ - maxim,red-led-current-microamp: configuration for RED LED current
+ - maxim,ir-led-current-microamp: configuration for IR LED current
+
+ Note that each step is approximately 200 microamps, ranging from 0 uA to
+ 50800 uA.
+
+Example:
+
+max30100@57 {
+ compatible = "maxim,max30102";
+ reg = <0x57>;
+ maxim,red-led-current-microamp = <7000>;
+ maxim,ir-led-current-microamp = <7000>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <16 2>;
+};
--
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