From a8a5549fec5229521d12de5c2d7f462f9f7de00e Mon Sep 17 00:00:00 2001 From: Benson Leung Date: Mon, 17 Jul 2017 11:41:40 +0200 Subject: [PATCH] dt-bindings: extcon: Add support for cros-ec device This patch add documentation for binding of USB Type C cable detection mechanism is using EXTCON subsystem. The device can detect the presence of display out but it may also detect other external accessories when external accessories is attached or detached. Signed-off-by: Benson Leung Signed-off-by: Enric Balletbo i Serra Reviewed-by: Chanwoo Choi Acked-by: Rob Herring Signed-off-by: Chanwoo Choi --- .../bindings/extcon/extcon-usbc-cros-ec.txt | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/extcon/extcon-usbc-cros-ec.txt diff --git a/Documentation/devicetree/bindings/extcon/extcon-usbc-cros-ec.txt b/Documentation/devicetree/bindings/extcon/extcon-usbc-cros-ec.txt new file mode 100644 index 0000000..8e8625c0 --- /dev/null +++ b/Documentation/devicetree/bindings/extcon/extcon-usbc-cros-ec.txt @@ -0,0 +1,24 @@ +ChromeOS EC USB Type-C cable and accessories detection + +On ChromeOS systems with USB Type C ports, the ChromeOS Embedded Controller is +able to detect the state of external accessories such as display adapters +or USB devices when said accessories are attached or detached. + +The node for this device must be under a cros-ec node like google,cros-ec-spi +or google,cros-ec-i2c. + +Required properties: +- compatible: Should be "google,extcon-usbc-cros-ec". +- google,usb-port-id: Specifies the USB port ID to use. + +Example: + cros-ec@0 { + compatible = "google,cros-ec-i2c"; + + ... + + extcon { + compatible = "google,extcon-usbc-cros-ec"; + google,usb-port-id = <0>; + }; + } -- 2.7.4