From b11a34607ded9b3dfb1992da47ac94bdf5945d53 Mon Sep 17 00:00:00 2001 From: Matt Ranostay Date: Tue, 29 Dec 2015 21:44:48 -0800 Subject: iio: health: max30100: add config for LED current Allow the current for both RED and IR LEDs to be set via an device tree property setting. This is an optional setting that is useful for applications that have a known glass attenuation factor. Signed-off-by: Matt Ranostay Acked-by: Rob Herring Signed-off-by: Jonathan Cameron --- Documentation/devicetree/bindings/iio/health/max30100.txt | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'Documentation/devicetree/bindings/iio/health') diff --git a/Documentation/devicetree/bindings/iio/health/max30100.txt b/Documentation/devicetree/bindings/iio/health/max30100.txt index f6fbac66ad06..295a9edfa4fd 100644 --- a/Documentation/devicetree/bindings/iio/health/max30100.txt +++ b/Documentation/devicetree/bindings/iio/health/max30100.txt @@ -11,11 +11,19 @@ Required properties: 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@057 { compatible = "maxim,max30100"; reg = <57>; + maxim,led-current-microamp = <24000 50000>; interrupt-parent = <&gpio1>; interrupts = <16 2>; }; -- cgit v1.2.3