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authorAndrew F. Davis <afd@ti.com>2016-02-02 11:50:45 -0600
committerJonathan Cameron <jic23@kernel.org>2016-02-06 18:58:01 +0000
commit535e58f17a765ecbd651913233f210b383676504 (patch)
tree914cb322119dd33410f02af0cbcbde09b8701981
parent87aec56e27efac98b7a0abe93258687716bf0b1e (diff)
downloadlinux-535e58f17a765ecbd651913233f210b383676504.tar.bz2
Documentation: afe4403: Add DT bindings for the AFE4403 heart monitor
Add the TI AFE4403 heart monitor DT bindings documentation. Signed-off-by: Andrew F. Davis <afd@ti.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
-rw-r--r--Documentation/devicetree/bindings/iio/health/afe4403.txt34
1 files changed, 34 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/health/afe4403.txt b/Documentation/devicetree/bindings/iio/health/afe4403.txt
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index 000000000000..2fffd70336ba
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+++ b/Documentation/devicetree/bindings/iio/health/afe4403.txt
@@ -0,0 +1,34 @@
+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.
+ - interrupt-parent : Phandle to he parent interrupt controller.
+ - 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>;
+ };
+};