From patchwork Wed Sep 1 12:23:37 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mauro Carvalho Chehab X-Patchwork-Id: 1523123 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=IXklHO7U; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4H03BW6R5Pz9sRN for ; Wed, 1 Sep 2021 22:23:47 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244050AbhIAMYm (ORCPT ); Wed, 1 Sep 2021 08:24:42 -0400 Received: from mail.kernel.org ([198.145.29.99]:55120 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244025AbhIAMYk (ORCPT ); Wed, 1 Sep 2021 08:24:40 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 2173E61027; Wed, 1 Sep 2021 12:23:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1630499024; bh=N9lbTjJlj0yx4DKnB+275T4Sv/VPSnubH8M17RH0TBM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IXklHO7Uy4sUYDeL0f/Z8MfUkr8vHf8n6mVhWD4dGBhQLAJpO7AMZWF7QtuhtJ3EJ I0XZAxIhiFuqU3tQrfGKvGvO6Ek8t0FOgixYq0MkL/ebp365Wi3gCLhlrONY/g1PWE aW2+m6nF/v/rEBIt/lJZ5Khq8d8NT//LUbqgdHy+TIfIPuRlYwQjACHW7CUWtZlKmn ksd8GijHVJOItEqf1NFHGKWDyB3lf+xTqGQXPdvvr/iHwO+dp8NPPnUn9t47A4cQYA sJj+FaZzbDsNIYZWdFAyHU9lr/8eaJt/WUlghxWZjrFBw6al056W1dmUlMNjY4fpzD kLL/HqTv7UG1A== Received: by mail.kernel.org with local (Exim 4.94.2) (envelope-from ) id 1mLPHJ-00H8Z1-3L; Wed, 01 Sep 2021 14:23:41 +0200 From: Mauro Carvalho Chehab To: Rob Herring , John Stultz Cc: linuxarm@huawei.com, mauro.chehab@huawei.com, Yu Chen , Rob Herring , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Mauro Carvalho Chehab Subject: [PATCH v2 1/3] dt-bindings: misc: add schema for USB hub on Kirin devices Date: Wed, 1 Sep 2021 14:23:37 +0200 Message-Id: X-Mailer: git-send-email 2.31.1 In-Reply-To: References: MIME-Version: 1.0 Sender: Mauro Carvalho Chehab Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Yu Chen This patch adds binding documentation to support USB HUB and USB data role switch of HiSilicon HiKey960 and HiKey970 boards. [mchehab: updated OF schema and added HiKey970 example] Signed-off-by: Yu Chen Signed-off-by: John Stultz Signed-off-by: Mauro Carvalho Chehab --- .../bindings/misc/hisilicon,hikey-usb.yaml | 108 ++++++++++++++++++ 1 file changed, 108 insertions(+) create mode 100644 Documentation/devicetree/bindings/misc/hisilicon,hikey-usb.yaml diff --git a/Documentation/devicetree/bindings/misc/hisilicon,hikey-usb.yaml b/Documentation/devicetree/bindings/misc/hisilicon,hikey-usb.yaml new file mode 100644 index 000000000000..3c2a4ce4d637 --- /dev/null +++ b/Documentation/devicetree/bindings/misc/hisilicon,hikey-usb.yaml @@ -0,0 +1,108 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2019 Linaro Ltd. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/misc/hisilicon,hikey-usb.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: HiKey960/970 onboard USB GPIO Hub + +maintainers: + - John Stultz + +description: | + Supports the onboard USB GPIO hub found on HiKey960/970. + The HUB, which acts as a role-switch intermediary to detect the state of + the USB-C port, to switch the hub into dual-role USB-C or host mode, + which enables the onboard USB-A host ports. + + Schematics about the hub can be found here: + https://github.com/96boards/documentation/raw/master/consumer/hikey/hikey960/hardware-docs/HiKey960_Schematics.pdf + https://www.96boards.org/documentation/consumer/hikey/hikey970/hardware-docs/files/hikey970-schematics.pdf + +properties: + compatible: + enum: + - hisilicon,hikey960-usbhub + - hisilicon,hikey970-usbhub + + typec-vbus-gpios: + $ref: /schemas/types.yaml#/definitions/phandle-array + description: phandle to the typec-vbus gpio + + otg-switch-gpios: + $ref: /schemas/types.yaml#/definitions/phandle-array + description: phandle to the otg-switch gpio + + hub-reset-en-gpios: + $ref: /schemas/types.yaml#/definitions/phandle + description: phandle to the hub reset gpio + + usb-role-switch: + $ref: /schemas/types.yaml#/definitions/flag + description: Support role switch. + + hub-vdd-supply: + description: regulator for hub power + + port: + description: | + describe hadware connections between USB endpoints. + Two ports are supported: the first being the endpoint that will + be notified by this driver, and the second being the endpoint + that notifies this driver of a role switch. + +required: + - compatible + - typec-vbus-gpio + - otg-switch-gpio + - hub-vdd-supply + - usb-role-switch + - port + +additionalProperties: false + +examples: + - | + #include + + hisi_hikey_usb: hisi_hikey_usb { + compatible = "hisilicon,hikey960-usbhub"; + typec-vbus-gpio = <&gpio25 2 GPIO_ACTIVE_HIGH>; + otg-switch-gpio = <&gpio25 6 GPIO_ACTIVE_HIGH>; + hub-vdd-supply = <&usb_hub>; + usb-role-switch; + port { + #address-cells = <1>; + #size-cells = <0>; + hikey_usb_ep0: endpoint@0 { + reg = <0>; + remote-endpoint = <&dwc3_role_switch>; + }; + hikey_usb_ep1: endpoint@1 { + reg = <1>; + remote-endpoint = <&rt1711h_ep>; + }; + }; + }; + + hisi-hikey-usb: hisi-hikey-usb { + compatible = "hisilicon,hikey970-usbhub"; + typec-vbus-gpios = <&gpio25 2 GPIO_ACTIVE_HIGH>; + otg-switch-gpios = <&gpio25 6 GPIO_ACTIVE_HIGH>; + hub-reset-en-gpios = <&gpio0 3 0>; + hub-vdd-supply = <&ldo17>; + usb-role-switch; + port { + #address-cells = <1>; + #size-cells = <0>; + hikey_usb_ep0: endpoint@0 { + reg = <0>; + remote-endpoint = <&dwc3_role_switch>; + }; + hikey_usb_ep1: endpoint@1 { + reg = <1>; + remote-endpoint = <&rt1711h_ep>; + }; + }; + };