From nobody Tue Feb 10 00:58:10 2026 Received: from CH5PR02CU005.outbound.protection.outlook.com (mail-northcentralusazon11012066.outbound.protection.outlook.com [40.107.200.66]) (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 1C64E1DE8B5; Wed, 7 Jan 2026 00:42:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.200.66 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767746554; cv=fail; b=kkXZK7AM5V+Qztcw30F1mHzauAGLd+PsUbbgC/K6BEuO6VZSWRJaMRKx6qkpSWIgZRFYtgQOOi+f3FPCLRLdPEzus62Bw30jc6I5xOCkig22mWkE+JtRk51OwiLTpIBQeotgcFF5Q9YO+V7s/vkay7EbFLrHEq+4XOvNAYkCk+o= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767746554; c=relaxed/simple; bh=r2MIPOWlBnmzHXuRDQt2DFsyc3DGQ5cU+Fq1l5hB1vA=; h=From:Date:Subject:MIME-Version:Content-Type:Message-ID:References: In-Reply-To:To:CC; b=UBqkFaDx9UQawjowk1rKT8kXrGeL5+OuXm1C+t3Uutw2K+c3xMnL2O4hkfc1KMhUDqMkttjbIYvHzXOBeDXmSkjsXPeEsAJd0gGU8XhsdVgMQ4mi3OvAlNNgAeH26PXGPHB7QYO3eoYlOfuczMsa+H3fp3ShX8f7A7ExGfPesU4= 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=HLxQnq5h; arc=fail smtp.client-ip=40.107.200.66 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="HLxQnq5h" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=BBE4t6/O1vXQkuZJxJiE7EkaOfgOoKMry6UOqRx0hT5uSTISL/wXpTnbwFuxZ2LULSEFUA/usK/VL9BRVZE/gk6hZQpJpWAEmHEPLjGQl61vCHRpvxvLI67XCAGSwDRFXYMS23X2iyNJmHmYFvWWcHLRNFuiy7854D61U5r5+KawkmfV9ieJ1LD7ThSARORduMg3XBAc4yF7A/2a4c4/f26PXtpLoyeWhsKDT4OGy1a4v/W8bs/Q2ozbJngWMg/Qxt1EVz8f0JMZ4VKCqrQYSZ8PyXnLJhNF4gEKTVj+bzTiybkm0nLEOzQhDwfoHfiNocOTuXwP7G6W4TkoJEZSnQ== 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=yRn0HXBNm3wE7l+hqt0y6hzV6R3VO+ecWecaOkIe/5I=; b=WpoRzwZI57fFrFGdXESHNVzR7oHXij/IDjmLGDdX/Z88hVij87qr8CdPX3cghupuf49puFeBOGN//P0t+CZp3QSFwLeQQyU0It5qA/w+p1uHibXK4TApHJwmro3tNVoVHMK6knLqbhf/tJtZ03UohSDG6Mb+8diJ6q55aKEi/2pObF/2MAKyebCOaBCMmyeR3mTBMaBHMKKahKrV2upsftpJOWAKv/ER9xapZTctPslRvaLbmcFyRlrwTTeLt9+5Bm6Yr9jyMtaOiRZi7y8ZJqvkLtOkGdRvyTb6wxNWTmyeJ4M9ZWIAtBdwx+0oSsS/g3nLxM4wjfG+kotnAvk3Bg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 198.47.23.195) smtp.rcpttodomain=kernel.org 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=yRn0HXBNm3wE7l+hqt0y6hzV6R3VO+ecWecaOkIe/5I=; b=HLxQnq5hGN9bKtrftcaFPjwWeY7B2+gW4uu2yuGfvzwC/Giz+TBlpXXpEIxGH554LTFOgwtvF7wEt1iA56gToCQr74cEG8fRtl4I49QlylBhJrMPmm0wMWV+qkP5Ebje55uRf9REuJJG0Gt1duEnty/iyI9YeNX+xulxsIHheYY= Received: from CY5PR15CA0133.namprd15.prod.outlook.com (2603:10b6:930:68::19) by DS0PR10MB7510.namprd10.prod.outlook.com (2603:10b6:8:166::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9499.2; Wed, 7 Jan 2026 00:42:28 +0000 Received: from CY4PEPF0000E9CD.namprd03.prod.outlook.com (2603:10b6:930:68:cafe::9d) by CY5PR15CA0133.outlook.office365.com (2603:10b6:930:68::19) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.9499.2 via Frontend Transport; Wed, 7 Jan 2026 00:42:27 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 198.47.23.195) 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 198.47.23.195 as permitted sender) receiver=protection.outlook.com; client-ip=198.47.23.195; helo=lewvzet201.ext.ti.com; pr=C Received: from lewvzet201.ext.ti.com (198.47.23.195) by CY4PEPF0000E9CD.mail.protection.outlook.com (10.167.241.132) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9499.1 via Frontend Transport; Wed, 7 Jan 2026 00:42:28 +0000 Received: from DLEE212.ent.ti.com (157.170.170.114) by lewvzet201.ext.ti.com (10.4.14.104) 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 18:42:26 -0600 Received: from DLEE205.ent.ti.com (157.170.170.85) by DLEE212.ent.ti.com (157.170.170.114) 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 18:42:25 -0600 Received: from lelvem-mr05.itg.ti.com (10.180.75.9) by DLEE205.ent.ti.com (157.170.170.85) 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 18:42:25 -0600 Received: from [127.0.1.1] (uda0506412.dhcp.ti.com [128.247.81.19]) by lelvem-mr05.itg.ti.com (8.18.1/8.18.1) with ESMTP id 6070gPrM3856461; Tue, 6 Jan 2026 18:42:25 -0600 From: Kendall Willis Date: Tue, 6 Jan 2026 18:42:21 -0600 Subject: [PATCH v3 4/5] arm64: dts: ti: k3-am62p5-sk: Enable Main UART wakeup Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-ID: <20260106-b4-uart-daisy-chain-dts-v3-4-398a66258f2c@ti.com> References: <20260106-b4-uart-daisy-chain-dts-v3-0-398a66258f2c@ti.com> In-Reply-To: <20260106-b4-uart-daisy-chain-dts-v3-0-398a66258f2c@ti.com> To: Nishanth Menon , Vignesh Raghavendra , "Tero Kristo" , Rob Herring , "Krzysztof Kozlowski" , Conor Dooley , , CC: , , , , , , , , Kendall Willis X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1767746545; l=1903; i=k-willis@ti.com; s=20251230; h=from:subject:message-id; bh=r2MIPOWlBnmzHXuRDQt2DFsyc3DGQ5cU+Fq1l5hB1vA=; b=hQumT7zR7WCLFMV4BSSNdAwgl8T1ML+Pj9K2+EOgnAA6+LuwOGPCktRDTjO7KfGJjIXD9DdwW nVfvFaIrbIzAr7SDR3cm5sHF0520QoI/elUq4efezW53Iej+RfxtF0v 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: CY4PEPF0000E9CD:EE_|DS0PR10MB7510:EE_ X-MS-Office365-Filtering-Correlation-Id: 0d0bef6b-b8fd-4ed3-99c3-08de4d85a255 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|36860700013|1800799024|376014; X-Microsoft-Antispam-Message-Info: =?utf-8?B?ZDlNeWl2RmdYUVNzQWd2VHR0SHBEVlhuV3lsSExYTmx4YnVRZHVJZGZMbmdv?= =?utf-8?B?TkM3ZjFWcDVWcHg1b1RlT0tUclQ0YlN1SnVOYlVkYkowMnZRbEV1cmdlbzJy?= =?utf-8?B?NWw1TlBnNzVRMXZraStSR2U0REJVWFRMem00U0tFczBDN2ZTQXQrVms2aG5C?= =?utf-8?B?eG5wNjNWSWZQQ2hsYjd0NGhlTE0vWVBHYmhpVHZlQkxCN3U5a0VxTlpnQnRz?= =?utf-8?B?OEUxM29ZYjNWbDlkMG9Vd1RqaWpTV3dBa08zdUgzdW9jNDYzMmR0MkIra2t3?= =?utf-8?B?RFY5amdydk1ialhDTzdtc2VJZEltZEo2akRrbFByY1krMkhSTXZHRVZ0SEg4?= =?utf-8?B?NitQM3hjczJkZ05jWUt3K2tHaFFKOEkrN0MxMGV0QTNMUU52d202WUNUcTVs?= =?utf-8?B?a3NxUWxhRzVxekpscFh1STVxeExkTXV2TUE5Z2FFNEZrWmdnUUozMkVYc2F1?= =?utf-8?B?WDZuL0FjVllrZUZCZFBpdEJBZFRUSkV5ZDB6RXlNWTRVNzNWZnd1TEp3NmVj?= =?utf-8?B?MmIvWUp6eDJHbGpzVHNjVmFuSGcwN0sxRzJBZ3h5bll6ZEUwT0YwQ0VCdnBk?= =?utf-8?B?S2ZLU1JieXg1VmVPYjVVZ0hKWVNXMlpPZWZjVmxyMGJHSmMrU3cyc3JhZ3dj?= =?utf-8?B?NXgyYkVZTzUzWXh2VUxKSHd5S003amRXcWhpM2QwTEtvR1p3RWg4eW1lUCtX?= =?utf-8?B?YVc0OW4xWXFyaWJxVHpOZk1mK2VkNm4vK3lneGNOcjJrMnhKRDcvRWhqU242?= =?utf-8?B?dGkzK3ZscTBDUXYzZEZVNHNHMTI5N1U3eVdyRUF4NkREUGhxM0tmaU5pQkpj?= =?utf-8?B?Z20xeXQ1YzRIdHQ0NlhqbG9aRkluMS84TURabTZ4bHYySHRMcC8zZEtEaUx0?= =?utf-8?B?dm5ER0c2cEZNN3EwcmFxVXRUUUZCRGM4TDY2SkkyemJ0c0lqNjM0TXRDZ2Q5?= =?utf-8?B?eVo3TmY5ZW51ZURlcUJEclZTOFBaTnNxM2ZoNkdpeDBGZ3lneFo1MHdvQWJ2?= =?utf-8?B?bFpoZ3VMZUZoTS91eHVLUjZmcTNpeGkvN2NTWUJNMkp3QVBOREt1T0VRckdp?= =?utf-8?B?UGdkQXpIMDF0UEdGVGQxbmg3aGNIQ01VSTZYenAwOWtaUW5GdmJFOCt4Yk9z?= =?utf-8?B?em9HRzVIZ0o0ZU9Sdkk5UmxTWkhnMXVzRmg3RDlyTk1JL3dJRXc2YkZVWUZM?= =?utf-8?B?a25ITmM2Yis1aXRqNnZ6NGs3Y280cEt1QXpwdjJTQ2RPVFd1amV0eFdnaTZk?= =?utf-8?B?VkdvMkNPMFVZZUxlRDNkejcwQVpkb2ZpRnFnNm1RemdBNzVtb0tpVGt4M1lj?= =?utf-8?B?ZTVOWVpLRXhMVlIrZzZodkR3Um8vL21lUks0QTRxalRnRkY4V2FQQjZudmRB?= =?utf-8?B?dWFya0gvUjNZNlRXbDd1bW5SQXZ4WWJRSkJsRUFsY1l2dU9wWUtpd3hKMm4x?= =?utf-8?B?VTMwOG01dDBjUGdQRnpWN0pLZUQ4WFNFZkFub0RzSHVXd1VPaUN4enpNelFs?= =?utf-8?B?cUtCVTB1NzZTVWNERzRqZEFCazhTT2RtcnpmRXdWK1dOZC9aM0xGMHppTHdX?= =?utf-8?B?UVhMVGtyRDVPcWhpL0h5ajlCWlROTnR2QjVRWGRIaU41TWxpWEZTbkxNRmM3?= =?utf-8?B?UEV6U1MvTUcwZ2RBYlFKY2J3cHljSXRkeWs1WlVwVWxyeHYwQ1dCdm9oeUNE?= =?utf-8?B?cFFpOTNyNk16NVJRMVlHYzlMakx2QlpKaTF3R1A0L3U1K0pYR0QwZ09RSWFy?= =?utf-8?B?aHdpRjZuaFRsMFk2RWxmUVd4andWdkQrMTN2VWJzVWxBRWxCalplZHN1OWNY?= =?utf-8?B?NVhXTFYwVEprQ0g4aXQxaHpQQkFWbmtkaDlEOThZbXFmaTBCeXdMODg2ZDdi?= =?utf-8?B?Wi9UcitEZ05ibnZUd1kxMTRXNGVycU1aMlVJSXlBdHE2a204dEplNnRxaUZZ?= =?utf-8?B?d2ZMdVJMQ2VZdStXcCtVYkxVTlh2WjdZSjlvUkNMQlNXOXhFZWpjakJXT1Js?= =?utf-8?B?UC83TkhwOWFydGphaE5VSzN6eU1yMUFSN1haVzdPZzhSakdHQXJ1bEM5anFZ?= =?utf-8?B?dng0dllXQXhHTnlSVDZ0MHhMV0NzbUNCcGRhOEU4cXAxLzI3QnhqU3lkK1lz?= =?utf-8?Q?hRx0=3D?= X-Forefront-Antispam-Report: CIP:198.47.23.195;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:lewvzet201.ext.ti.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(82310400026)(36860700013)(1800799024)(376014);DIR:OUT;SFP:1101; X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Jan 2026 00:42:28.1791 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 0d0bef6b-b8fd-4ed3-99c3-08de4d85a255 X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.23.195];Helo=[lewvzet201.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: CY4PEPF0000E9CD.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR10MB7510 The Main UART can resume from suspend to RAM states when PIN_WKUP_EN is enabled. Add the necessary pins needed to wakeup the system. Add the system idle states that the Main UART can wakeup the system from. The UART driver uses the "default" pinctrl state when the system is active. In the suspend hook, if the UART is wakeup enabled, the "wakeup" pinctrl state is selected by the UART driver in order to allow wakeup. Upon resume, the default pinctrl state is selected again. Reviewed-by: Markus Schneider-Pargmann Reviewed-by: Dhruva Gole Signed-off-by: Kendall Willis --- arch/arm64/boot/dts/ti/k3-am62p5-sk.dts | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/= ti/k3-am62p5-sk.dts index 4f7f6f95b02ef94a140edcef595ad8f6cc4b4113..fd323a64880970e17007ab13016= 1dae56efd09d7 100644 --- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts @@ -336,6 +336,13 @@ AM62PX_IOPAD(0x1cc, PIN_OUTPUT, 0) /* (B22) UART0_TXD = */ bootph-all; }; =20 + main_uart0_pins_wakeup: main-uart0-wakeup-pins { + pinctrl-single,pins =3D < + AM62PX_IOPAD(0x1c8, PIN_INPUT | PIN_WKUP_EN, 0) /* (A22) UART0_RXD */ + AM62PX_IOPAD(0x1cc, PIN_OUTPUT, 0) /* (B22) UART0_TXD */ + >; + }; + main_uart1_pins_default: main-uart1-default-pins { pinctrl-single,pins =3D < AM62PX_IOPAD(0x0194, PIN_INPUT, 2) /* (D25) MCASP0_AXR3.UART1_CTSn */ @@ -692,8 +699,12 @@ partition@3fc0000 { }; =20 &main_uart0 { - pinctrl-names =3D "default"; + pinctrl-names =3D "default", "wakeup"; pinctrl-0 =3D <&main_uart0_pins_default>; + pinctrl-1 =3D <&main_uart0_pins_wakeup>; + wakeup-source =3D <&system_deep_sleep>, + <&system_mcu_only>, + <&system_standby>; status =3D "okay"; bootph-all; }; --=20 2.34.1