From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from CH4PR04CU002.outbound.protection.outlook.com (mail-northcentralusazon11013020.outbound.protection.outlook.com [40.107.201.20]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4D22C30DD2E; Fri, 19 Sep 2025 14:00:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.201.20 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758290414; cv=fail; b=k/to0sZGRf6HsotK2VC2LFHAvFpV4WVt9j6QEVB8iwDZiyXaFHhK8TCXWuMDQExMvwfLp6XS/BQg+k069LqzAueGG96pbvgT099lPpOkwB8pK6fYDX3VMwwxWVarSO6Bil/y0QjkvmDv9FHlEFMy1YH5GD7tRdvsc9QEB/SRHEU= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758290414; c=relaxed/simple; bh=nZd7ldzpjJ+hvyUUpixQsaKrJ41jKT0NWghzW93QJGo=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=o8WfT0Zxf33UwlSQt6QbBTeqz2g/hXYU+722EARYoFlIpBWuqQuhzjvy5P685U3bqRv3H4bGvvlUET87gtFYbHYnRxpAdNLz02OVCXBnm4BHXXAwJYBsV1jmOfuxpIGEfnZTvKoGhtqIWdzXfMM6AO+Xul6/PYlHRa2oF/VjQNM= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com; spf=fail smtp.mailfrom=nvidia.com; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b=szwD/i+X; arc=fail smtp.client-ip=40.107.201.20 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=nvidia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b="szwD/i+X" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=SPeYMI14VpzGUFh+eylP7CSaY0Nxg303NbNsNZAgzTFLvRl1a2Cm0HhrfH5xqN0I8Gekk8jASvmmUyKyg8iXSiMH0VvzNSjwQ4ik2XEvNbbzRhx0+R5brcsy+rtiXRG22bwghQTpQrKVtg1gabcQC1jcD3qhL+UPiZUqDNT9vIRut1vDGPMQ63su96oAaGkm5D1QzZODmRcxcQ7FCrdroA8HabeYNweQxkiRaG+5lRwyJzSkZnVhoVJjuYfat0jN4BgKE7NdGuOn47GEdTCRYO+OSb634o7/YFtnW7S8fYB+ZN+legNMZSB9C7ZzJ+S6AsnEOGFP5IZaNJWQ/vtcJg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=EQ5T4+41W/4V7StdUWtOL2Qhltzg655cTeqA6T6LmJs=; b=NddNatSTW9vZY6PdZS8/j1cMjo14XnLN+/6EA4y5qGlI8xLFsyAdHEjAYgPmwvQbdu9huz7egRgOiM3UYhKEegM/3p87z0a9M7CqviEJ9pxTETtgTEKYrzSkgwYiPDAqqPj9+nxj8zzNGDMYeOTch7c/FkU5AyD8AjPXXuvep44/qJyUWgTS49wkOE5+UrziI8EirDVPv4mHq5H4O5mHFLgSEaTb/pGrLu38x/+brKVnzL1yf6CEmSa7VbGtwhK/7slh47wzmEPMH9eSjC3Mux9hQMhycUvzUQJfkahOCbok/1e+zmtktvTPHFYqBqZXA26Dr9Z1MA00SAsEDbaCXA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.117.161) smtp.rcpttodomain=kernel.org smtp.mailfrom=nvidia.com; dmarc=pass (p=reject sp=reject pct=100) action=none header.from=nvidia.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=EQ5T4+41W/4V7StdUWtOL2Qhltzg655cTeqA6T6LmJs=; b=szwD/i+XyJJMHPWmZxLggpqBwfC9JUhF+c7ckcXr1tw3BfPHje2ENFFhJIOfbtHYcSbQWTiGPc0ZHqUvAkZs68N/FWLtlsXBDtxSDdiqAwajvjPDabMNBWnJr6uJ7564g8JGWwRRzAPn7hO3aK+JnkWhP57Ra824gkHfwosS6YuwUGjAMdjF0lHbNxYv0lj8B55BlPA15tWKaLYvFC9jOp8kOVf9r7NiVL2GTrUW1qudgy5jaWzgaG7+LQfqjA66A1fgqxBFfT5m3c0HgtlaEopftAfWHi3lG61ldQi3YukDxidLmc9mllBgNMIU+GED1B0RGb3bCeZ9YZa4tDCrnw== Received: from DS7PR05CA0029.namprd05.prod.outlook.com (2603:10b6:5:3b9::34) by SA1PR12MB7127.namprd12.prod.outlook.com (2603:10b6:806:29e::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9137.13; Fri, 19 Sep 2025 14:00:06 +0000 Received: from DS1PEPF0001708F.namprd03.prod.outlook.com (2603:10b6:5:3b9:cafe::9f) by DS7PR05CA0029.outlook.office365.com (2603:10b6:5:3b9::34) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.9137.15 via Frontend Transport; Fri, 19 Sep 2025 14:00:06 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.117.161) smtp.mailfrom=nvidia.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.117.161 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.117.161; helo=mail.nvidia.com; pr=C Received: from mail.nvidia.com (216.228.117.161) by DS1PEPF0001708F.mail.protection.outlook.com (10.167.17.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9137.12 via Frontend Transport; Fri, 19 Sep 2025 14:00:06 +0000 Received: from rnnvmail201.nvidia.com (10.129.68.8) by mail.nvidia.com (10.129.200.67) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.14; Fri, 19 Sep 2025 06:59:54 -0700 Received: from rnnvmail202.nvidia.com (10.129.68.7) by rnnvmail201.nvidia.com (10.129.68.8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.34; Fri, 19 Sep 2025 06:59:53 -0700 Received: from build-shgarg-noble-20250919.internal (10.127.8.11) by mail.nvidia.com (10.129.68.7) with Microsoft SMTP Server id 15.2.1544.14 via Frontend Transport; Fri, 19 Sep 2025 06:59:52 -0700 From: Shubhi Garg To: Lee Jones , Rob Herring , "Krzysztof Kozlowski" , Conor Dooley , "Catalin Marinas" , Will Deacon , "Alexandre Belloni" , Jonathan Hunter CC: , , , , Shubhi Garg Subject: [PATCH v6 1/4] dt-bindings: rtc: Document NVIDIA VRS RTC Date: Fri, 19 Sep 2025 13:59:50 +0000 Message-ID: <20250919135950.10403-1-shgarg@nvidia.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-tegra@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NVConfidentiality: public Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS1PEPF0001708F:EE_|SA1PR12MB7127:EE_ X-MS-Office365-Filtering-Correlation-Id: c444b18d-cb7c-4e56-83b2-08ddf784d68f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|82310400026|376014|1800799024|36860700013; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?TKq8dtJNuMhNpO0hkWfayLaEvpzGXwXQEp7tujHwg8eeZth982PmyYZ4Z1Yh?= =?us-ascii?Q?4Hn4VEcmkTQ5PD+yxQ9OQZxkqxt4BeHY7KIOzRFDUm2rT8QdF4iEudxxXMkb?= =?us-ascii?Q?IgZ1Z8N0x+2qcafCIDYIQqBEkTomwJsvK4pzZnV4DoSZQLRKR1Q1FiCk7Tgu?= =?us-ascii?Q?4ChlZstrkkR17a3fS9hu0fpC3AYc5mHLUyW2Vgi9KsnjHV8sjpgkEoGEcJ1w?= =?us-ascii?Q?qbZ7uJiwegMpNsfmbt3tl4/C6RSzrqjsZLeNAItDW5t8/8Z8Z0GdofaKVucP?= =?us-ascii?Q?I/5OaC49UwgMAerEXvqh7jt7JqU7yCnFVdBZrPiw986lYIsUT0LmxFNAfVza?= =?us-ascii?Q?USXFeMrfnXU+yauLGLq356gpRmc3FHLdb8RpHOhCZ35i45fxNUUvITNLWicx?= =?us-ascii?Q?QebezsmwmFZJ7cluqGNdfYHb4SoGKT/R/PxhGuCNpLuIXqWmQOKK1NAKD7wK?= =?us-ascii?Q?zVMPnyR4DWTq5584AbB7+43KlPOPYJV0yDoQuD16ROZsAM1+1Ymk+Roq3Dqq?= =?us-ascii?Q?6WjjaJ1hq/1ycbxq0I98atIBSRp2AYs4HeIkOOHfwYFqnjHeVR4S/JuhQBgw?= =?us-ascii?Q?pQeIggx+o+GcigOslP+GoT2R8Ya735BXETWyal6WolmtzdaNJUowfIrjJK1i?= =?us-ascii?Q?4BSYoxqCqjkt8mGbCugfPMUntlExLbVHk1v/NCVA6FDAEEi2ViKrF9hNltU5?= =?us-ascii?Q?9doc1KcOTGD7BZqH63WVqFV1YFGAkyjEYvcQGw5mOFdxtHly7RHfOVFKQvty?= =?us-ascii?Q?yV7dbzQp67oO/PMiZBei07/4Rteyx8pf4y7IWIhzhcqwupBZGnsRALzrvz6D?= =?us-ascii?Q?pgx2qwe0eIJYuPwtEaLuuiYySj0DQ3SRr9/4V2EkgYL5/WDdmjaAxq6jyPN6?= =?us-ascii?Q?K4HPxDIQig2G3lixDNU/0JBNZqr1d8MXoFFL3rLElpSDjp88fHMYQpl8NJ7H?= =?us-ascii?Q?OE7meL9cHGbnUxMVNKHW2PBgT153zM51ogS3XiZilScs68LUHKgNcKpRERUn?= =?us-ascii?Q?RGQrKAnphfNxJq6nReUX0Y7YGm59ssgis0fL3KhxvSbbUcmQsj+lOZgWwX1i?= =?us-ascii?Q?J2TLb+gegnhyK5uszW9jL/EqpRgB9ivYtyyijBlWxegCOWDqGh+02yZC2vfH?= =?us-ascii?Q?AYyYN/H56kTbXwJ0uQOjsdG13I+Z4QS2byf/1Chrm0rlH2abyqABE43Ir8WV?= =?us-ascii?Q?L9aMBdfxydDvcT1Dqb80KhOsWPxj7M0mTECcjLC6AiRBbsJnkbYtARPhJvBv?= =?us-ascii?Q?ZjnrJZOpPsr4pcs9DIANLyWGC/iAp4nLjn5yDmilcZkn/NEaKYVQ4Y+ZCRVs?= =?us-ascii?Q?0IPYC5MziwfACljBwufHvBhpxTeMQ2HFfMv9+frgqRaQPBm1fFfI7upg6ADU?= =?us-ascii?Q?HjvlCsR8EOhNaGPkGxCoAJbXqrxktBuCaRVHH1xA1IoLaLOrFXLHt95XVlnp?= =?us-ascii?Q?+WH4YixndKxL3NgkQ3olPCs3gYVajtj8R4KVrG9lLYPzKNCg7Q+uosQf6kTb?= =?us-ascii?Q?9R+VulxxhYxIx0eFxjbkUvUys+cDhLgOpK+4?= X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230040)(7416014)(82310400026)(376014)(1800799024)(36860700013);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Sep 2025 14:00:06.1948 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c444b18d-cb7c-4e56-83b2-08ddf784d68f X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DS1PEPF0001708F.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA1PR12MB7127 Add device tree bindings for NVIDIA VRS (Voltage Regulator Specification) RTC device. NVIDIA VRS is a Power Management IC (PMIC) that implements a power sequencing solution with I2C interface. The device includes RTC which provides functionality to get/set system time, retain system time across boot, wake system from suspend and shutdown state. Supported platforms: - NVIDIA Jetson AGX Orin Developer Kit - NVIDIA IGX Orin Development Kit - NVIDIA Jetson Orin NX Developer Kit - NVIDIA Jetson Orin Nano Developer Kit Signed-off-by: Shubhi Garg --- v6: - compatible name fixes to "nvidia,vrs-10" - changed dtb node name to pmic@3c v5: - moved device tree bindings from mfd to rtc - changed dtb node name to rtc@3c - changed compatible string to "nvidia,vrs10-rtc" v4: - no changes v3: - fixed device tree node name to generic "pmic@3c" - fixed indentation v2: - fixed copyrights - updated description with RTC information - added status node in dtb node example .../bindings/rtc/nvidia,vrs10-rtc.yaml | 59 +++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/nvidia,vrs10-rtc.yaml diff --git a/Documentation/devicetree/bindings/rtc/nvidia,vrs10-rtc.yaml b/Documentation/devicetree/bindings/rtc/nvidia,vrs10-rtc.yaml new file mode 100644 index 000000000000..e8f3c25607e0 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/nvidia,vrs10-rtc.yaml @@ -0,0 +1,59 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/rtc/nvidia,vrs10-rtc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NVIDIA Voltage Regulator Specification Real Time Clock + +maintainers: + - Shubhi Garg + +description: + NVIDIA VRS-10 (Voltage Regulator Specification) is a Power Management IC + (PMIC) that implements a power sequencing solution with I2C interface. + The device includes a real-time clock (RTC) with 32kHz clock output and + backup battery support, alarm functionality for system wake-up from + suspend and shutdown states, OTP memory for power sequencing configuration, + and an interrupt controller for managing VRS events. + +properties: + compatible: + const: nvidia,vrs-10 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + interrupt-controller: true + + '#interrupt-cells': + const: 2 + +required: + - compatible + - reg + - interrupts + - interrupt-controller + - '#interrupt-cells' + +additionalProperties: false + +examples: + - | + #include + i2c { + #address-cells = <1>; + #size-cells = <0>; + + pmic@3c { + compatible = "nvidia,vrs-10"; + reg = <0x3c>; + interrupt-parent = <&pmc>; + interrupts = <24 IRQ_TYPE_LEVEL_LOW>; + interrupt-controller; + #interrupt-cells = <2>; + }; + }; -- 2.43.0