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authorMartyn Welch <martyn.welch@collabora.co.uk>2017-08-18 17:53:47 +0200
committerShawn Guo <shawnguo@kernel.org>2017-09-20 14:00:25 +0200
commitf9705438b0f7da5dd04e270a95536b36b3dca54a (patch)
treebf79266b359439e4a352b5ed9053374d10e26934
parentARM: dts: imx7d-pico: Add Wifi support (diff)
downloadlinux-f9705438b0f7da5dd04e270a95536b36b3dca54a.tar.xz
linux-f9705438b0f7da5dd04e270a95536b36b3dca54a.zip
dt-bindings: misc: achc: Add device tree binding for GE ACHC
Add Device Tree binding document for GE Healthcare USB Management Controller (ACHC). Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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diff --git a/Documentation/devicetree/bindings/misc/ge-achc.txt b/Documentation/devicetree/bindings/misc/ge-achc.txt
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+* GE Healthcare USB Management Controller
+
+A device which handles data aquisition from compatible USB based peripherals.
+SPI is used for device management.
+
+Note: This device does not expose the peripherals as USB devices.
+
+Required properties:
+
+- compatible : Should be "ge,achc"
+
+Required SPI properties:
+
+- reg : Should be address of the device chip select within
+ the controller.
+
+- spi-max-frequency : Maximum SPI clocking speed of device in Hz, should be
+ 1MHz for the GE ACHC.
+
+Example:
+
+spidev0: spi@0 {
+ compatible = "ge,achc";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+};