From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from SJ2PR03CU001.outbound.protection.outlook.com (mail-westusazon11012034.outbound.protection.outlook.com [52.101.43.34]) (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 477F82DE6E3; Tue, 6 Jan 2026 22:40:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.43.34 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767739212; cv=fail; b=rMxCrVNp8DE1uzYqgVs8YwnV3XJVDQgcadFFkaApLQQ8DVkPjlar+QtoQ7aunRuVWQerSoq14BUCrwMHUr/pTt/OSM8vols9Xxjdq9UX6IwFbQyBqYYSAxaUZPd41+wDqFMmVlMIa9pLlbTKzWMkR7IVpU9ni4khlhEOhvQ3Z7I= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767739212; c=relaxed/simple; bh=huShoD9o95l5j39jMKjn/haVANryUVi6lJtk4VjnD58=; h=From:Subject:Date:Message-ID:MIME-Version:Content-Type:To:CC; b=aHm1KnAlGvP2gdADnqefpoMTqHcgWHpJR90lMk+dWgOSYaSeZ+AgM4BOMJMQ40sZwYArvH5gFpSkTtXib5YTHl5DZ/yswBbfSxqGMYtB1pXWCBWbMhekF5tfacAlKLbaI16MymQVKrD7M4txTt6Pa2yBjT41SJ8PNw7rz9peGW0= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com; spf=pass smtp.mailfrom=ti.com; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b=YFHQ/v5l; arc=fail smtp.client-ip=52.101.43.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ti.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="YFHQ/v5l" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=nH6os1WREjAM5ymC0EDjO/B7sn6yttmS6Y/rHGbKrwvEv9vN/hIvJmJxE7KbR22hyS/7o/CXU23cCX9xlht/fWR7hLH5QIRnNLqXqIEX/At1djzcp3CRJzGVg2gKVNB+K/j1CLfAMNt0uOv9l5sQ4q5ohJSSi+ezYs71mWeHjZwz1snBL1iDxn3wG0FgknmXghc5mEEd/8pj1fV503P8ncLlp33gpO9KxSd5hotzdKpkpGxYrXacabmASjD3O1Se2ooWbBIzGiAR7xYsraBZiLJBmMfDh3sTgrd3v5jvzL+RNdPoTwlBljeyGV7lnF63UjlRhnkk05JczpdnxcJINw== 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=8StvKMEdFLEf/M7rEPTtPv7xi2wLWzAPfIJhnwTHPDM=; b=VVpzV33VPop4xmetgFyTbCMgago98Lfr0ajWwI98AIb5GDt+Y5zponNUOo9xuTpg2qHWnY1aJpj0Arjif6ns1yp+BVjs9qMmWODrxeRlSmRV9aR9zd6Yotaow2qLKE9m2MURfeZz2SbY/kv39fp0z+I+CDryuv926IROfXolIRPk3G5b4497QX+EPIB+1ryYu3gaUwxWybLi9KeKXO++Xry/kkM9LUgNq4d8m6IvDVQ7RtAyyoKBKY7jqpBbFR95j7A8o/HDovhntXaJ8vpvTK7CqZndRen9ljuUJGcjt08H587mb9kmg3IBzk224kZPXiINWUHYYaipJkoX/Vi4Nw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 198.47.21.195) smtp.rcpttodomain=baylibre.com smtp.mailfrom=ti.com; dmarc=pass (p=quarantine sp=none pct=100) action=none header.from=ti.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=8StvKMEdFLEf/M7rEPTtPv7xi2wLWzAPfIJhnwTHPDM=; b=YFHQ/v5lmPHN0yoeSUw+3+lAFxhTkHAiIRhIyjiMVonntoKdFJhT8SixgdqcXMs+i9T8gfszHSYOp0qTyZCah28pTfdKqddL4nPXy91G3eDXaElvRBrXK+AE5sJvUgZHJ8RtpefFzLCNyVdDjswS+LT6apO56rHtkCQCXV5l5/4= Received: from BN9PR03CA0753.namprd03.prod.outlook.com (2603:10b6:408:13a::8) by CO6PR10MB5554.namprd10.prod.outlook.com (2603:10b6:303:141::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9478.4; Tue, 6 Jan 2026 22:40:03 +0000 Received: from BN3PEPF0000B373.namprd21.prod.outlook.com (2603:10b6:408:13a:cafe::3a) by BN9PR03CA0753.outlook.office365.com (2603:10b6:408:13a::8) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.9499.2 via Frontend Transport; Tue, 6 Jan 2026 22:39:56 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 198.47.21.195) smtp.mailfrom=ti.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=ti.com; Received-SPF: Pass (protection.outlook.com: domain of ti.com designates 198.47.21.195 as permitted sender) receiver=protection.outlook.com; client-ip=198.47.21.195; helo=flwvzet201.ext.ti.com; pr=C Received: from flwvzet201.ext.ti.com (198.47.21.195) by BN3PEPF0000B373.mail.protection.outlook.com (10.167.243.170) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9520.0 via Frontend Transport; Tue, 6 Jan 2026 22:40:01 +0000 Received: from DFLE204.ent.ti.com (10.64.6.62) by flwvzet201.ext.ti.com (10.248.192.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20; Tue, 6 Jan 2026 16:39:44 -0600 Received: from DFLE203.ent.ti.com (10.64.6.61) by DFLE204.ent.ti.com (10.64.6.62) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20; Tue, 6 Jan 2026 16:39:43 -0600 Received: from lelvem-mr06.itg.ti.com (10.180.75.8) by DFLE203.ent.ti.com (10.64.6.61) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20 via Frontend Transport; Tue, 6 Jan 2026 16:39:43 -0600 Received: from [127.0.1.1] (uda0506412.dhcp.ti.com [128.247.81.19]) by lelvem-mr06.itg.ti.com (8.18.1/8.18.1) with ESMTP id 606MdhS43586904; Tue, 6 Jan 2026 16:39:43 -0600 From: Kendall Willis Subject: [PATCH v2 0/3] arm64: boot: dts: ti: k3-am62l: allow WKUP UART wakeup from LPM Date: Tue, 6 Jan 2026 16:39:20 -0600 Message-ID: <20260106-wkup-uart-wakeup-v2-0-fb4cbd56c827@ti.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIABiPXWkC/32NQQ6CMBBFr0Jm7RhaU1JceQ/CopRBJkQgbSka0 rtbOYC7/37y3z/Ak2PycC8OcBTZ8zJnkJcC7GjmJyH3mUGWUgl5K3GfthU34wLuZqKcddfZWhm jB02QZ6ujgd+nsmkzj+zD4j7nQxS/9o8sCizR9hUJNei+VtUj8NUuL2hTSl9LEZeKrQAAAA== X-Change-ID: 20251230-wkup-uart-wakeup-8bbc95aa8f8e To: Nishanth Menon , Vignesh Raghavendra , "Tero Kristo" , Rob Herring , "Krzysztof Kozlowski" , Conor Dooley , "Dhruva Gole" , Bryan Brattlof CC: , , , , , , , , , Kendall Willis X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1767739183; l=1870; i=k-willis@ti.com; s=20251230; h=from:subject:message-id; bh=huShoD9o95l5j39jMKjn/haVANryUVi6lJtk4VjnD58=; b=NIsZmoMUZNiN/EvXCrHGGYtpem9m1hN/geOU88jiqkTdyKaNOBABxHJMqBJm0EN6AMO8YTAHE j/m/ijWeZFgAkcGtN9VFhoY70jBeUL39kLyh0129iln/BLmRqC/jDt8 X-Developer-Key: i=k-willis@ti.com; a=ed25519; pk=fQiPVFwmogfDAKdaAKq163RWSfgHZVE/MrsDzp0Xo1k= X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN3PEPF0000B373:EE_|CO6PR10MB5554:EE_ X-MS-Office365-Filtering-Correlation-Id: ee134ecb-c37e-4fd6-dd70-08de4d748718 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|376014|1800799024|36860700013; X-Microsoft-Antispam-Message-Info: =?utf-8?B?QUxBVmpOYkJZZzhKU1dwc2dFeVEveEMyMU1lc1o1dkRBaGNUVzRpKzN5VTJB?= =?utf-8?B?bTlwSWVTL2lBQ2xZOGdnajFBN3BadzhndDdIUHl6ZGZEL2FoUXhTYThWS1Yr?= =?utf-8?B?ejdCSXVpelV6Q1hta2pyK0ZNeS9CcG90ZDhxem5RVm5yd0ZyN0FvQXpUazd0?= =?utf-8?B?dTdBUVNpR1RZSkJNUmczQkNGd2VQN2p6NWJlMzlhVzMxMjdBblpwRFB5WTNi?= =?utf-8?B?dk1DSm1ZWExFNTR3MG55S1F6YjVuSytxMjBESGxFbzhCbEV4TUl4clk1QUcv?= =?utf-8?B?U1Y4ZWJJTXcrMStRWC9uYTU0VkYvL3BoVjNORUlnaUtLYTJTcmk2RUJRWXlv?= =?utf-8?B?cmFWeXBtWUhjRmxNYlhRVlRxWVltTVVuU2JUM3JYNG9xN0JMUWhiT3ZwS2Jk?= =?utf-8?B?d3RNdU1LTHZtcWdLZWx3VkVvWTVCaG5UWEFrR2FJc29ESnhIaUl6TWcxazVV?= =?utf-8?B?T1dIZVYrTkQyVTRHbys3RDdGaWIxQkdGMlp6K3hXSDRXR3NKTi9kS3VHWkVt?= =?utf-8?B?WTlTKzhHYVJCc2JteDYzaE54QmFydFBodllXNVd5SVVzZGdmcml2WUt4eVRV?= =?utf-8?B?OXBITkxIOXhmY2VNRlBFK3RIZFpEcWJ3elVNUnBvVHQ5dVpaNmhZNVNMdjFN?= =?utf-8?B?WlhEYitxeEVKeWxWejk1Z29BYTZWVVNGWVhCZmV0MjRWbXFjaWNjalNIMXZk?= =?utf-8?B?VWl6VDVhRW4zTmt2c0NsL01yWTZlZnJyYmI0YndoM050TC9SWlFqQ3lhdXBU?= =?utf-8?B?RWd1a0VwOS9VTEFmVTNMTStHbXFEd2cxZWRtYlhCdFhmR01mZFlVcEZzYXVh?= =?utf-8?B?RHBpQ0F5T05abE5DOENSb040VlhOSFhsUnpJMGxpSG1Na3N1aVhMYUx0cG4r?= =?utf-8?B?WnBaUkhxK21qaDFDY2xYRkdkQTFMaTYrZHpqUDd6N2x4SERXM2FQTkJUZzN4?= =?utf-8?B?QllQak1ISW0rQUYvb1p0QlZVdnIwS1lFUE9ISDZsSzNyam1xWVhWU0M1Qkpn?= =?utf-8?B?aytURHNJTVpkdk51Z1NTdUVGZzdZeCtXM3pMNGRTbUF5RUwweGNtYlZhb3dw?= =?utf-8?B?S3ByVExhTG9nNVZYY2Zsckc4UUFLcERIdVFqKzgxSC9qeStXTHNXaWE2WUNL?= =?utf-8?B?MGROL25lekswQ2ZwN2MyRzhpVjBBOU9ycGttRzV3RzczRy9LejFLbHVINGVa?= =?utf-8?B?bCtLVWdHWkgxYTJhZTlpMlV6dVQ3aHF3SGhnWU9CRkZBZ1BaSm9pNEl0RGRu?= =?utf-8?B?OFQ4cVdFTllhMmNmTUl0SkFwdThCcFBDUzhPWnNzd2gvbWU5czFOUHFaWDZW?= =?utf-8?B?S3NyaVhlajUwb2JuMWozK2JURUYwbWJSTDF0VkJ6V2FYNXNROHVxQXRSSS9B?= =?utf-8?B?bm5ybDhnOTNZRkk1NGx3VUtSNlBZT051V2VqTlYybzF2d3l2aGl3V3ZUNm9M?= =?utf-8?B?eTN5YlRta1NmTlNlZUt4VE92M0ppeUJTR2s4RGEwKzNsbUtVM3pyQUVyMmdk?= =?utf-8?B?bW11MXlqTS9keVN4N0wrQ1dLNmZUbmF2TWxESWdKWDNhSkc3U2Jmd0pQWlhm?= =?utf-8?B?VWhLcDFzcmpwTEFHN3NOd3JBKzFCeW5oWFVjS1IrL0dtMXNEMTN0cVExT1NO?= =?utf-8?B?N01rak1aZy9Hc3IyT3gwblJpbFJRSG9FR1NXNXBQWml6ZGF3Z1RONEFOelBF?= =?utf-8?B?c1hUaWIxM3BNUWNBa2R0UGRIbmxHR3MxS0U2NnV0Z2ZMWXNWV0tUbE81RHdy?= =?utf-8?B?U0h6RmFuWXdzakdpcCtJRFd6dk8zVUFFZFZ1OFlmQWxJcUh1ajBwMVFOT1lU?= =?utf-8?B?dXlFSG5oNWY1M2FMVC9TejRadWYrcGs4ZUh1SmY3THkxL0J1Q20wcExpQTM1?= =?utf-8?B?Wm4zbGkxTVY0UVlseHFuSlNkWXBSUmY2cUtaNUNQVG1TdVJBL3BiNUROMFJz?= =?utf-8?B?TXJGSVdmZmVFTDQyU1A0SmpHU1pUa0lwSWZmTmk4WmtWbHJ6dUtWUDBLV1lU?= =?utf-8?B?TWNRWU5BUXBCTFI2YSsrNk1yQ0hoMDc2WDBNNDNCZUF6Y1ExYVhZNzY3OUls?= =?utf-8?B?WXp3N09lNXFCdFRYWnhSWWNiYUUxaVM3clZSRVkrQ2x3QWJiOGc2WUQ4bElQ?= =?utf-8?Q?aN++JWIYbhn1XlL12rVXAyzFT?= X-Forefront-Antispam-Report: CIP:198.47.21.195;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:flwvzet201.ext.ti.com;PTR:ErrorRetry;CAT:NONE;SFS:(13230040)(82310400026)(376014)(1800799024)(36860700013);DIR:OUT;SFP:1101; X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Jan 2026 22:40:01.0660 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: ee134ecb-c37e-4fd6-dd70-08de4d748718 X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.21.195];Helo=[flwvzet201.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: BN3PEPF0000B373.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO6PR10MB5554 K3 TI AM62L SoC supports wakeup from WKUP UART when the SoC is in the DeepSleep low power mode. To allow wakeup from WKUP UART the target-module device tree node is enabled. The ti-sysc interconnect target module driver is used to configure the the SYSCONFIG related registers. In this case, the interconnect target module node configures the WKUP UART to be able to wakeup from system suspend. The SYSC register is used to enable wakeup from system suspend for the WKUP UART. Refer to 14.7.2.5 UART in the AM62L Techincal Reference Manual for registers referenced [1]. Previous TI SoCs configure the WKUP UART to wakeup from system suspend using the ti-sysc interconnect target module driver. Refer to commit ce27f7f9e328 ("arm64: dts: ti: k3-am62-wakeup: Configure ti-sysc for wkup_uart0") for an example of this. Testing ------- Tested on AM62L EVM. [1] https://www.ti.com/lit/ug/sprujb4a/sprujb4a.pdf Signed-off-by: Kendall Willis --- Changes in v2: - Change subject of commit "arm64: boot: dts: ti: k3-am62l3-evm: enable target-module node" to better match the code logic of the patch. - Link to v1: https://lore.kernel.org/r/20251230-wkup-uart-wakeup-v1-0-cd6e15f8d956@ti.com --- Kendall Willis (3): arm64: dts: ti: k3-am62l: include WKUP_UART0 in wakeup peripheral window arm64: boot: dts: ti: k3-am62l-wakeup: create label for target-module arm64: boot: dts: ti: k3-am62l3-evm: enable target-module node arch/arm64/boot/dts/ti/k3-am62l-wakeup.dtsi | 2 +- arch/arm64/boot/dts/ti/k3-am62l.dtsi | 4 ++-- arch/arm64/boot/dts/ti/k3-am62l3-evm.dts | 4 ++++ 3 files changed, 7 insertions(+), 3 deletions(-) --- base-commit: 6cd6c12031130a349a098dbeb19d8c3070d2dfbe change-id: 20251230-wkup-uart-wakeup-8bbc95aa8f8e Best regards, -- Kendall Willis