From patchwork Thu Aug 5 17:42:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Piyush Mehta X-Patchwork-Id: 493008 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 04DEDC4338F for ; Thu, 5 Aug 2021 17:43:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E1AF760C51 for ; Thu, 5 Aug 2021 17:43:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240533AbhHERnf (ORCPT ); Thu, 5 Aug 2021 13:43:35 -0400 Received: from mail-bn8nam11on2051.outbound.protection.outlook.com ([40.107.236.51]:16992 "EHLO NAM11-BN8-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S240460AbhHERnY (ORCPT ); Thu, 5 Aug 2021 13:43:24 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=bboOSvtADXckM5tUUkSc8K4ep8wiWtBAeMGrwloBIZO+tmX6t3UA2onumTAQuG4GV7itUGqick6Y1ES1qBrQszY3Yib8SMDH1lafxR/6gSUh/1rbbL7BkciqZMpiO+XyZwNCC9EIMbY4RMPL0GcgdOMwa8MeiGe5VKC92T/Sd1zTc/vZ1ll0i0vSS+gP9DiTnNTp3N6enFpf63HT6nL2TOOJS5LEMbs0O/Xs/wVDvz12EnvyBx1d9u88MyLWaVX9y+AY8Rhcl3X0r1RxibSWh6nBzeVTE3/yFkE5Dsv6IWay+NttbTMN1DO9RwVUAKKx+ihtPV9P2Lpj+GdSt2z93g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=lodLg64lReQGcCsYcxpXPr29vJsoc8wdmyOTOlzt238=; b=I/mWlGDW7JHvClvAhiZbl2p7f6RQW5JVpP7d54quPKrJ6eIeKKDq4r+KUzXY78jxiozBnIIYx0qAc2TYVCBiIlGI0CvGxBnwxl8NsEnVRDbVJ4bb8azfwPdOkIULzQVAj9KCYtYDKVBCnDU3lZaaBnv6eOA0/O2Dj4C7ZNJovF1+XqPZjmQF49M32ibDrlusyKYbJc1hrVAtEe8vO8DWAowXwcYmhxOsTtPf220RpSU4pON0hCUnsNwgR3f6bwMXnaDCtwjHl/7l+41JEWN6mKqlQpIjhdfgN/fogT+Xy/jsX3RS+HBwA76KCfPhtZOgwGH/7Oru/2ga9aTKdoiJhg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 149.199.62.198) smtp.rcpttodomain=arndb.de smtp.mailfrom=xilinx.com; dmarc=pass (p=none sp=none pct=100) action=none header.from=xilinx.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=xilinx.onmicrosoft.com; s=selector2-xilinx-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=lodLg64lReQGcCsYcxpXPr29vJsoc8wdmyOTOlzt238=; b=ncUAz0yS9PfkuvHS8aBzQf2zTJyZBzrUp/K6E9ne9jwSAalmA/bKXLI4ileUpKOQoRyTjsUdl3aC8/6FytKQSDd7eFCbnohlbMJeQSIPviKjnn+wAfkmb/BmBjSAXAy29E36HKNysq5jPH5K+U/3Wee+oGsQaABPtb0YU3/ZWuE= Received: from SN6PR16CA0051.namprd16.prod.outlook.com (2603:10b6:805:ca::28) by DM8PR02MB8155.namprd02.prod.outlook.com (2603:10b6:8:1c::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4373.20; Thu, 5 Aug 2021 17:43:06 +0000 Received: from SN1NAM02FT0028.eop-nam02.prod.protection.outlook.com (2603:10b6:805:ca:cafe::60) by SN6PR16CA0051.outlook.office365.com (2603:10b6:805:ca::28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4394.15 via Frontend Transport; Thu, 5 Aug 2021 17:43:06 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 149.199.62.198) smtp.mailfrom=xilinx.com; arndb.de; dkim=none (message not signed) header.d=none; arndb.de; dmarc=pass action=none header.from=xilinx.com; Received-SPF: Pass (protection.outlook.com: domain of xilinx.com designates 149.199.62.198 as permitted sender) receiver=protection.outlook.com; client-ip=149.199.62.198; helo=xsj-pvapexch01.xlnx.xilinx.com; Received: from xsj-pvapexch01.xlnx.xilinx.com (149.199.62.198) by SN1NAM02FT0028.mail.protection.outlook.com (10.97.4.206) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.4394.16 via Frontend Transport; Thu, 5 Aug 2021 17:43:06 +0000 Received: from xsj-pvapexch02.xlnx.xilinx.com (172.19.86.41) by xsj-pvapexch01.xlnx.xilinx.com (172.19.86.40) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Thu, 5 Aug 2021 10:42:55 -0700 Received: from smtp.xilinx.com (172.19.127.95) by xsj-pvapexch02.xlnx.xilinx.com (172.19.86.41) with Microsoft SMTP Server id 15.1.2176.2 via Frontend Transport; Thu, 5 Aug 2021 10:42:55 -0700 Envelope-to: git@xilinx.com, arnd@arndb.de, zou_wei@huawei.com, gregkh@linuxfoundation.org, linus.walleij@linaro.org, iwamatsu@nigauri.org, bgolaszewski@baylibre.com, robh+dt@kernel.org, linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Received: from [10.140.6.35] (port=51088 helo=xhdsaipava40.xilinx.com) by smtp.xilinx.com with esmtp (Exim 4.90) (envelope-from ) id 1mBhOP-0005Bw-P9; Thu, 05 Aug 2021 10:42:54 -0700 From: Piyush Mehta To: , , , , , , , , , CC: , , , , , , Piyush Mehta Subject: [PATCH V2 2/3] dt-bindings: gpio: zynqmp: Add binding documentation for modepin Date: Thu, 5 Aug 2021 23:12:18 +0530 Message-ID: <20210805174219.3000667-3-piyush.mehta@xilinx.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210805174219.3000667-1-piyush.mehta@xilinx.com> References: <20210805174219.3000667-1-piyush.mehta@xilinx.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 8b3ee291-671e-4152-d1db-08d958387b78 X-MS-TrafficTypeDiagnostic: DM8PR02MB8155: X-Microsoft-Antispam-PRVS: X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply X-MS-Oob-TLC-OOBClassifiers: OLM:7691; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:149.199.62.198; CTRY:US; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:xsj-pvapexch01.xlnx.xilinx.com; PTR:unknown-62-198.xilinx.com; CAT:NONE; SFS:(4636009)(376002)(39850400004)(136003)(346002)(396003)(36840700001)(46966006)(7636003)(54906003)(82740400003)(36756003)(6666004)(2616005)(47076005)(7416002)(6636002)(2906002)(356005)(426003)(110136005)(82310400003)(44832011)(26005)(7696005)(921005)(316002)(70206006)(36860700001)(8676002)(83380400001)(36906005)(107886003)(70586007)(1076003)(478600001)(336012)(4326008)(5660300002)(9786002)(8936002)(186003)(966005)(102446001)(2101003)(83996005); DIR:OUT; SFP:1101; X-OriginatorOrg: xilinx.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Aug 2021 17:43:06.1734 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8b3ee291-671e-4152-d1db-08d958387b78 X-MS-Exchange-CrossTenant-Id: 657af505-d5df-48d0-8300-c31994686c5c X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=657af505-d5df-48d0-8300-c31994686c5c; Ip=[149.199.62.198]; Helo=[xsj-pvapexch01.xlnx.xilinx.com] X-MS-Exchange-CrossTenant-AuthSource: SN1NAM02FT0028.eop-nam02.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM8PR02MB8155 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org This patch adds DT binding document for zynqmp modepin GPIO controller. Modepin GPIO controller has four GPIO pins which can be configurable as input or output. Modepin driver is a bridge between the peripheral driver and GPIO pins. It has set and get APIs for accessing GPIO pins, based on the device-tree entry of reset-gpio property in the peripheral driver, every pin can be configured as input/output and trigger GPIO pin. For more information please refer zynqMp TRM link: Link: https://www.xilinx.com/support/documentation/user_guides/ug1085-zynq-ultrascale-trm.pdf Chapter 2: Signals, Interfaces, and Pins Table 2-2: Clock, Reset, and Configuration Pins - PS_MODE Signed-off-by: Piyush Mehta --- Changes in v2: - Addressed review comments: Update commit message https://lore.kernel.org/linux-arm-kernel/20210615080553.2021061-2-piyush.mehta@xilinx.com/T/#mbd1fbda813e33b19397b350bde75747c92a0d7e1 https://lore.kernel.org/linux-arm-kernel/20210615080553.2021061-2-piyush.mehta@xilinx.com/T/#me82b1444ab3776162cdb0077dfc9256365c7e736 --- .../bindings/gpio/xlnx,zynqmp-gpio-modepin.yaml | 41 ++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/xlnx,zynqmp-gpio-modepin.yaml diff --git a/Documentation/devicetree/bindings/gpio/xlnx,zynqmp-gpio-modepin.yaml b/Documentation/devicetree/bindings/gpio/xlnx,zynqmp-gpio-modepin.yaml new file mode 100644 index 0000000..39d78f8 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/xlnx,zynqmp-gpio-modepin.yaml @@ -0,0 +1,41 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/gpio/xlnx,zynqmp-gpio-modepin.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: ZynqMP Mode Pin GPIO controller + +description: + PS_MODE is 4-bits boot mode pins sampled on POR deassertion. Mode Pin + GPIO controller with configurable from numbers of pins (from 0 to 3 per + PS_MODE). Every pin can be configured as input/output. + +maintainers: + - Piyush Mehta + +properties: + compatible: + const: xlnx,zynqmp-gpio-modepin + + gpio-controller: true + + "#gpio-cells": + const: 2 + +required: + - compatible + - gpio-controller + - "#gpio-cells" + +additionalProperties: false + +examples: + - | + modepin_gpio: gpio { + compatible = "xlnx,zynqmp-gpio-modepin"; + gpio-controller; + #gpio-cells = <2>; + }; + +...