From patchwork Fri May 20 09:06:17 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Neal Liu X-Patchwork-Id: 12857498 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B2222C433EF for ; Fri, 20 May 2022 21:42:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=MWnhKXKTgPsfbKF2C1CNmcMsd9u+ZWI4i+mv7Zd+5tU=; b=FQ/g1iABTw0/M0 nYUD94CMy3nhALZEdz6pJexrGvW7cvA2W0K7tI8DJNIph2q3L79lst5bfDBc3fYuqSYIXNO/5dAH5 58O8MvE53MPLqam2roz588zHZ+Q/xef+YdF47pqYZyh1qQLYiPPWJ3pnyg30eVXVuR/vo8sJvDEKd TsSlXkAxOtyIxgF2ae9NPLMkrks8tmdjhUw/CNxx2xfcGEBFedCfiRR7QU4D0NyddrSbHw4RVHRhE KAJUTwI118rcD1LOQSmDx6+G7w9lTl53utyKsbHM2mQNJpwknHTCIjDRqDpOI3sppSx5fuY7T6igX cyp2sYfCo/5iBpoTY3yw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nsANL-00EdEX-1v; Fri, 20 May 2022 21:41:35 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nsANC-00EdCt-Mo for linux-arm-kernel@bombadil.infradead.org; Fri, 20 May 2022 21:41:26 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Type:Content-Transfer-Encoding :MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From: Sender:Reply-To:Content-ID:Content-Description; bh=Me87pAj0SmrGeqIXqHs1XAXK7kEqz39QMHSFLkzw+Z8=; b=J0K+Co9471qobZhz/zrSjaB6ol oQGHjf/S/swofa/KtQ2cRgTpd+iIHynqfZvwOWbI/aLxkmaNST+0iWkF8UsyuVSiOs+VraGD+FNqH S9PXQn4KxNUyzYow4jBtyH7RVDNrpathJgSv+rN+OURhQqInXplHyU7r0Q4emRONVLI33fLp1lSTy KxclX4wnl4WZEgonzHdGpG6HgOUWQac/VRBqEQv3SowFh+XZ/Wrtop2TLj/uwlLmdd/3MDaJ+4WCc c7l5CABwpuXwwV2Z/Cx7P1402ZA3oGxwf2K+Ro6uuo+5MfkxhQ0DosTFHxN9dpo20EIz1i8tS3g79 Or9JbkFA==; Received: from twspam01.aspeedtech.com ([211.20.114.71]) by desiato.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nrybV-002HXM-Hn for linux-arm-kernel@lists.infradead.org; Fri, 20 May 2022 09:07:29 +0000 Received: from mail.aspeedtech.com ([192.168.0.24]) by twspam01.aspeedtech.com with ESMTP id 24K8qZVf003709; Fri, 20 May 2022 16:52:35 +0800 (GMT-8) (envelope-from neal_liu@aspeedtech.com) Received: from localhost.localdomain (192.168.10.10) by TWMBX02.aspeed.com (192.168.0.24) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 20 May 2022 17:06:21 +0800 From: Neal Liu To: Greg Kroah-Hartman , Rob Herring , Krzysztof Kozlowski , Joel Stanley , "Andrew Jeffery" , Felipe Balbi , Sumit Semwal , =?utf-8?q?Christian_K=C3=B6nig?= , Geert Uytterhoeven , "Li Yang" CC: Neal Liu , , , , , , , , , Krzysztof Kozlowski Subject: [PATCH v4 3/3] dt-bindings: usb: add documentation for aspeed udc Date: Fri, 20 May 2022 17:06:17 +0800 Message-ID: <20220520090617.2225080-4-neal_liu@aspeedtech.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220520090617.2225080-1-neal_liu@aspeedtech.com> References: <20220520090617.2225080-1-neal_liu@aspeedtech.com> MIME-Version: 1.0 X-Originating-IP: [192.168.10.10] X-ClientProxiedBy: TWMBX02.aspeed.com (192.168.0.24) To TWMBX02.aspeed.com (192.168.0.24) X-DNSRBL: X-MAIL: twspam01.aspeedtech.com 24K8qZVf003709 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220520_100726_601703_0DF260A8 X-CRM114-Status: GOOD ( 12.51 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add device tree binding documentation for the Aspeed USB2.0 Device Controller. Signed-off-by: Neal Liu Reviewed-by: Krzysztof Kozlowski --- .../bindings/usb/aspeed,ast2600-udc.yaml | 52 +++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/aspeed,ast2600-udc.yaml diff --git a/Documentation/devicetree/bindings/usb/aspeed,ast2600-udc.yaml b/Documentation/devicetree/bindings/usb/aspeed,ast2600-udc.yaml new file mode 100644 index 000000000000..c3b6be3d8002 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/aspeed,ast2600-udc.yaml @@ -0,0 +1,52 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (c) 2020 Facebook Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/aspeed,ast2600-udc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ASPEED USB 2.0 Device Controller + +maintainers: + - Neal Liu + +description: |+ + The ASPEED USB 2.0 Device Controller implements 1 control endpoint and + 4 generic endpoints for AST260x. + + Supports independent DMA channel for each generic endpoint. + Supports 32/256 stages descriptor mode for all generic endpoints. + +properties: + compatible: + enum: + - aspeed,ast2600-udc + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + interrupts: + maxItems: 1 + +required: + - compatible + - reg + - clocks + - interrupts + +additionalProperties: false + +examples: + - | + #include + udc: usb@1e6a2000 { + compatible = "aspeed,ast2600-udc"; + reg = <0x1e6a2000 0x300>; + interrupts = <9>; + clocks = <&syscon ASPEED_CLK_GATE_USBPORT2CLK>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usb2bd_default>; + };