From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752636AbdCAL1f (ORCPT ); Wed, 1 Mar 2017 06:27:35 -0500 Received: from bhuna.collabora.co.uk ([46.235.227.227]:43562 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752450AbdCAL1b (ORCPT ); Wed, 1 Mar 2017 06:27:31 -0500 From: Enric Balletbo i Serra To: MyungJoo Ham , Rob Herring , Chanwoo Choi Cc: Lee Jones , linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Benson Leung Subject: [PATCH v2 2/2] dt-bindings: extcon: Add support for cros-ec device Date: Wed, 1 Mar 2017 12:19:43 +0100 Message-Id: <20170301111943.12170-3-enric.balletbo@collabora.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20170301111943.12170-1-enric.balletbo@collabora.com> References: <20170301111943.12170-1-enric.balletbo@collabora.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Benson Leung 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 --- - Added Reviewed-by: Chanwoo Choi Requested by Rob Herring - Remove the Extcon word in the binding and replace it to describe better the h/w. - 'google,extcon-cros-ec' renamed to 'google,extcon-usbc-cros-ec' to indicate this is USB Type C related. .../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..8e8625c --- /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>; + }; + } -- 2.9.3