From patchwork Thu Aug 5 10:31:00 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: 1513849 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org 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=) 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=esZv8NEB; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4GgPz12Hgxz9sRR for ; Thu, 5 Aug 2021 20:31:09 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240091AbhHEKbU (ORCPT ); Thu, 5 Aug 2021 06:31:20 -0400 Received: from mail.kernel.org ([198.145.29.99]:40180 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239963AbhHEKbT (ORCPT ); Thu, 5 Aug 2021 06:31:19 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id BA33360E53; Thu, 5 Aug 2021 10:31:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1628159465; bh=zu65XBxVpjazUM+E3UnPxlO5E9qLFLV5tZCxDuJiUn0=; h=From:To:Cc:Subject:Date:From; b=esZv8NEBCw/H058ypgv7duUMbhNpcjKvelWwVJyDb5lqwcngKNGQCch/nzhIiM16b 8hRI640nTCrXhbIMbiyxXwhi1jXYLBIm5G5D9PBwP2mu5iB4wchAq+Wg3O1WMH8mFo hxsld+meCSwNjHTcln0DIjUbEUY34WDicdyL2oDEcNvKIYfUWOhc2jXT1+OcALtTtI o4WR2hnNEuToH7USMqZJxLBu0tMwUntT9+rPJNFJ2ZQURMAcjFP1bQ503KN4QEZ54W 4ZVomGasrHqxP3EwSjFYAFWX230YqtNeK7SZlE/bO8FTYnJyIRyytLf7EOGYbHTgfr Ys676rC5USI3w== Received: by mail.kernel.org with local (Exim 4.94.2) (envelope-from ) id 1mBaeV-001GiB-Do; Thu, 05 Aug 2021 12:31:03 +0200 From: Mauro Carvalho Chehab To: Rob Herring Cc: linuxarm@huawei.com, mauro.chehab@huawei.com, Yu Chen , John Stultz , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Mauro Carvalho Chehab Subject: [PATCH] dt-bindings: misc: add schema for USB hub on Kirin devices Date: Thu, 5 Aug 2021 12:31:00 +0200 Message-Id: X-Mailer: git-send-email 2.31.1 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 names and added support for HiKey970] Signed-off-by: Yu Chen Signed-off-by: John Stultz Signed-off-by: Mauro Carvalho Chehab --- .../bindings/misc/hisilicon,hikey-usb.yaml | 95 +++++++++++++++++++ 1 file changed, 95 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..857f9bd802fe --- /dev/null +++ b/Documentation/devicetree/bindings/misc/hisilicon,hikey-usb.yaml @@ -0,0 +1,95 @@ +# 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,gpio_hubv1 + - hisilicon,kirin970_hikey_usbhub + + typec-vbus: + $ref: /schemas/types.yaml#/definitions/phandle-array + description: phandle to the typec-vbus gpio + + otg-switch: + $ref: /schemas/types.yaml#/definitions/phandle-array + description: phandle to the otg-switch gpio + + hub-vdd33-en: + $ref: /schemas/types.yaml#/definitions/phandle-array + description: phandle to the hub 3.3v power enablement gpio + + hub_reset_en_gpio: + $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: | + any connector to the data bus of this controller should be modelled + using the OF graph bindings specified, if the "usb-role-switch" + property is used. Note for this driver, 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 + - otg-switch + - usb-role-switch + - port + +additionalProperties: false + +examples: + - | + #include + + hisi_hikey_usb: hisi_hikey_usb { + compatible = "hisilicon,gpio_hubv1"; + typec-vbus = <&gpio25 2 GPIO_ACTIVE_HIGH>; + otg-switch = <&gpio25 6 GPIO_ACTIVE_HIGH>; + hub-vdd33-en = <&gpio5 6 GPIO_ACTIVE_HIGH>; + 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>; + }; + }; + };