From nobody Sun Apr 5 13:26:58 2026 Received: from BYAPR05CU005.outbound.protection.outlook.com (mail-westusazon11010002.outbound.protection.outlook.com [52.101.85.2]) (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 D3224259C94; Thu, 12 Feb 2026 17:27:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.85.2 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770917256; cv=fail; b=e6zyJJRsl5/NcaIrPR3YzSa683Ky3nwVKSAXp8F/aReF6jB3RHTJKzLPCd1dwlDeyLFjup96PFya3SnezN4NLK3N6IfnYwwLgn736R3K39Jt4mHH+wluKkpqEb6KlvX+j2Nb/cI5tqFFYbYItdYDl5+WJMBTC5b/eGgGiAEknDY= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770917256; c=relaxed/simple; bh=z7XocER7EnWq4UF7qv2/WuOqbhhWozI+vycWySytOBA=; h=From:Date:Subject:MIME-Version:Content-Type:Message-ID:References: In-Reply-To:To:CC; b=gE9SSK75cugm+eSJ7DKi8RA34VdmNeoeP/T6mFVhpof8GQcagbfU4FKwO6mQ3ywF1qIKr4Rm1fZ5b+8TIhUdSlHXFegsUrPH7xM5Wo3gG00UFtKkwOgR6kY5YDVaw8oQrJy5NpGKHhOU/fqfIbaN/5R5kdWt/MmHq/I/WUk9nYQ= 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=ro3x/9NC; arc=fail smtp.client-ip=52.101.85.2 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="ro3x/9NC" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=EytanFKM8v/wli3AfaAwCNHADE+RLeZVsj267wQ2Oijv537X6/1FpsMwC1IDXBOiYuZo3v6V+Biqpiok8AqvQfsZgv1pimUhqM40iPT597VVwGXb0FQlNu17whVHLchtG3X0LSFxcTGIOe8/Y5HpRRsrRuUXPrOJ0TheVvlWtpN5CCw8i8OYyGEMNhaaB6EoDCdVa1SlWLTgW3W6nkG0Zr+rX9prqflGl7uRI9ut+ah1/BOZSSN+7pqSGBgiIJ2Fl2uJt0Lyte65YNj0VQFCClfn4oG1iPoBzCDykaw0s0xiL6lmUWLEB5q1y0udIS4Wxyi2xUyKMgH97YOQsWZ3BQ== 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=sKE6UJt7dxGlmQbPeltY8HwcpqbxnLHd0fgOITMd5kU=; b=J7XFjHw6Dt1b4TAXEwgbiwoA+XTeCWUZfRYaYWuL+tNxb117/8qLE4pDN53z7G6V6YMRvCQ26YYdj6Tqti2IMgib8gVNj+edEWBIT1l9OVFfIXCTSunWzxYCvtsgcCOejSZPHYZ/xotySrAnVB30O8qiH+F9ioZKYBgwhVTaYnQwlVJZOjjLArm6g7rhMKHLoXIbvxMUd5rqDfVlEr3TmHhfL2EMDDIDRY2VRrSM1USVywwHcgmg51n+Pxz9JfA8SLokxscEJZH1pvqwFzoBUyZiQxjUxlgjozljMtZRByi6LYWsEawibr+bvHsoUTJpEEHax+50q0eEc0a0VJwH7Q== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 198.47.23.195) 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=sKE6UJt7dxGlmQbPeltY8HwcpqbxnLHd0fgOITMd5kU=; b=ro3x/9NCdaQOFGVf+E9FUTYnZV/Ok1Lf9lkzddjGsGNRgFwEVS0e4VupB+/0UrPp2H0ftWll73+D/BeI2WLy9MutZHT/1En2VD8872jUN3WBMdrqDVNOtJqd0v5LIh83ggXS8dYallJxwADR010JIWPvLfUQrWaLgZaKsDYFn3s= Received: from BN1PR13CA0021.namprd13.prod.outlook.com (2603:10b6:408:e2::26) by LV3PR10MB7723.namprd10.prod.outlook.com (2603:10b6:408:1b0::10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9611.10; Thu, 12 Feb 2026 17:27:31 +0000 Received: from BN3PEPF0000B06D.namprd21.prod.outlook.com (2603:10b6:408:e2:cafe::bc) by BN1PR13CA0021.outlook.office365.com (2603:10b6:408:e2::26) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.9611.11 via Frontend Transport; Thu, 12 Feb 2026 17:27:24 +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 BN3PEPF0000B06D.mail.protection.outlook.com (10.167.243.72) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9632.0 via Frontend Transport; Thu, 12 Feb 2026 17:27:30 +0000 Received: from DLEE201.ent.ti.com (157.170.170.76) 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; Thu, 12 Feb 2026 11:27:29 -0600 Received: from DLEE213.ent.ti.com (157.170.170.116) by DLEE201.ent.ti.com (157.170.170.76) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20; Thu, 12 Feb 2026 11:27:28 -0600 Received: from lelvem-mr06.itg.ti.com (10.180.75.8) by DLEE213.ent.ti.com (157.170.170.116) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.20 via Frontend Transport; Thu, 12 Feb 2026 11:27:28 -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 61CHRSI63458792; Thu, 12 Feb 2026 11:27:28 -0600 From: Kendall Willis Date: Thu, 12 Feb 2026 11:27:24 -0600 Subject: [PATCH v5 5/5] arm64: dts: ti: k3-am62d2-evm: 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: <20260212-b4-uart-daisy-chain-dts-v5-5-26c7f534e567@ti.com> References: <20260212-b4-uart-daisy-chain-dts-v5-0-26c7f534e567@ti.com> In-Reply-To: <20260212-b4-uart-daisy-chain-dts-v5-0-26c7f534e567@ti.com> To: Nishanth Menon , Vignesh Raghavendra , "Tero Kristo" , Rob Herring , "Krzysztof Kozlowski" , Conor Dooley CC: , , , , , , , , , , X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1770917248; l=1799; i=k-willis@ti.com; s=20251230; h=from:subject:message-id; bh=z7XocER7EnWq4UF7qv2/WuOqbhhWozI+vycWySytOBA=; b=hu3BzmNe+bQVF+5fG9b77Ha1J5Oc3vppiULp72y2+NZAOGgSOPkwnQOyxeoxb8X/AmYCYOQrd Xy/vR7BOJgNCqdiWScLnGSaaccUbRNsuwcoRa/bFk/UPMzXaEa55ZVq 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: BN3PEPF0000B06D:EE_|LV3PR10MB7723:EE_ X-MS-Office365-Filtering-Correlation-Id: bf09b3b9-88b9-4999-3460-08de6a5c0057 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|1800799024|36860700013|376014; X-Microsoft-Antispam-Message-Info: =?utf-8?B?MjExWWlIWWRMb3RCY3hZTWtLS2VYVU10ZmNqUkl1SjBsZHNDT0JSQzhBN01T?= =?utf-8?B?ZC9TWFhGVEZ2K21IY0Z2Ty9tdkdtYmJjMC9VMzN4QjlCTTZwVm55RW5FMFY5?= =?utf-8?B?bWdzckh6TmlHVXp4VjdmSW50c0gza0NMV3BtUVEyWllIdFdldTlJN0hkQ0Nz?= =?utf-8?B?bWx6MkVzMzN5Y3BRZkpzNUpkRDRUTlFSSDFsRWFscERYWUJJSENjemE5aTdB?= =?utf-8?B?TWVqQmFnSURQdU40aFltVERCMll4d053NDYrSXpsTVJoaFhnM2hUb0p5Y2xH?= =?utf-8?B?RldEd21oNTJxVkQ2cmlGeHRWNndZaTdHTGJwNVlkRkJXdXJrSDlaS05haEls?= =?utf-8?B?aUdrOWNLMk1VanRaTFd0WnFvNXhScFVxMk83STh1MEFRSmE2MTlvZktFR3RG?= =?utf-8?B?NEtCaFBQaWNtTGJBS2xYV2FsTmIxYkk0ckRqOEhyWXdHQVcwWHNqZzFHYWh3?= =?utf-8?B?OG9acGRzNGhnOHB1Mkp3NDRVUGlhd1AzclNZWTY1aTZRc1IzV3FBUjI3UHdH?= =?utf-8?B?WTJiRzNndFZidjBUbEpNalFMREw4RHp3N2I1cDZIQ3B5Y3M5dmxNQnlSRVFQ?= =?utf-8?B?amI3OUtYb2xORjg3dXh3Ujhua3V3THI4OUR3OUE2T25uTHJTemF4M3ZDaXY4?= =?utf-8?B?WTZIUmxaUjV0RDlxallWM3JhT2NiZFlZdGJnejcxOVE1Qkh6QmQzOGJSdUpD?= =?utf-8?B?TnFmcHJCcDM5Y2FiU2E1T0g4TnV1SFl5YUdCcGxxWEYvUDg2L3J2RWw0YTAz?= =?utf-8?B?SnQ0a0FJNnBjSWhxWlBualBueTROMTNwbjQrNnkvMHFWY3ozSFpidzZBc2NI?= =?utf-8?B?bVd1cmhFeW5GTm0zYUx5YzI0bTlrSGZiZEpUTEMyTU9wazdBQ2MwVjRvWHlm?= =?utf-8?B?R2pLWmhQT0JuaEtJZXZXZXF1bnI1WUdPSlZXejV4Y1Z2eGU1dkEvcWxBT3Uz?= =?utf-8?B?MXJ5TkFoUUhVa0xuRysrdURhWityYVFaVCtDYVZocWpGTFB5NUcwRFJYUzJS?= =?utf-8?B?VnY0T1o0UERlOHdSeU9WSVBaOWh1VURwZlZWdXVVRHMvcmFmRXdacGE0ekhH?= =?utf-8?B?UVY4a0EvdFdHR05zcENmdFllcGloTFB2V3VsZ3gwYnBuNUNSaTZKQ3lCMll2?= =?utf-8?B?UUNkUnVRRjMxSHNwOFhUaEdUREwzSmoxanpnMHFCWU9EeWE5L3dXZHZpbVFW?= =?utf-8?B?d1ZXWjFQL3R2cW1mbnMvWDE4ZlU1NXc2L1NPR0ZoNm81aWNOdjhDWlFFREVY?= =?utf-8?B?MVl6K3AzNHpmS2g3ckhqR1EwclBud3lrNkd4dldDdFhOc29iYlNwZVlSRVNT?= =?utf-8?B?eitJNnZoOGxZY3REL0h0bGJKTXJ4U2gvcFVKU295UVBSRXZlYXh5MkM5SnZk?= =?utf-8?B?K3U2Q1pvOVBQSDVjcTlTVVQvcTY4SmFuNlFJSTAyaTRsTHZmL1UrWC9iYUpm?= =?utf-8?B?b1BQVEhNRUluUms4UFdSbkQ0bzRRR1JVNHRmVTBRdktxc0N0V3IwSjdVN040?= =?utf-8?B?Z3VqR2ZYU25GL1UxZjYzVlBNTUMvVGFUbW52MHNJWUprUnJwb3JVNFlOVVha?= =?utf-8?B?dStselZ3cjMwOFhZL0NPQit3WldiR2MrS0JtMmNmUCtlSDI5VndGMzgrc3Vl?= =?utf-8?B?MlkvdUFUVFkxdkc4VVJyZzZyejUvVHRLakcxWHl3VmgyRnJET1dTeDNOSy82?= =?utf-8?B?Mk1udTJmUHdldnE2dFI2bnNmdmFuNWxaUnNLVkZrZ2k0YjgzSUdjMjgwSk82?= =?utf-8?B?TW9lTWowSkVCK1ZOUkIrU0dTRk45d2FTM3lBRHM2ckg0ektiTGtVbXRLNFV4?= =?utf-8?B?UGxLUi9pKzRjdzZlZkJzK0RKblRzZ0JFQXhNSnVyVmR3aTFSeW9vWXNHaUVH?= =?utf-8?B?YVkzU0FZY3RBOUpiWE93TGdNV0gya2FqNldwcHZmMjlWMUhOWFZjaE9lYmdk?= =?utf-8?B?SWZjSXQxMkY5WEV2bkI1SHNWbDBsMzduTXJ6d1U0NFphSzJ0akVmUExnUVJO?= =?utf-8?B?NlE5aWgxYm5SUmFvUjZ3a0xleE1GYnlWS3NqYVo3bHg5QnZreHVPaEljMzlK?= =?utf-8?B?L3BQWlVodTFKR2NuMHlvbHFhQlpPOHdDeHF4bU1SQ3lZZXVac3Z3M0tudk1r?= =?utf-8?B?cUhpaGtHaXJ5VndMRXpzQkNhTWhlc1JFZHdjM05MdmVEOHVGY0JSeFRyYSth?= =?utf-8?B?MnEyZmVQS0RvZS9zOU9wMUdpcXpwR0haY1cxYU9tclJlVXdpZFhSZ00xZHJk?= =?utf-8?B?cHNZTUhCNlRDSVdtRU9FRHNoaFZBPT0=?= 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)(1800799024)(36860700013)(376014);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: W4bLAkqsX1QP8HfT7UptwTYZsoVDly+Tpn09cuO83rVWPc+joCgb4C9jRgLSnvyFFdM8JUbboQhJdw4MJle4iQskJrg9VNo2SXapFf4CpFL393By2+IP86y83j1D0ZIYPQd06/sv4Gg9srhi7c4aeYMeSmEGEmx7ZtBL7T0SoHklzHAQDZvtFrpto9oD48mMKlrFSeQKZQ3eiNHOtxTtUIt0zsoHsqk5Cjb4dD2MlX8/xWjf1vXc6V8WGgBT7/qK+wkRRzTc7hQD8omO6fcj3QKBr1BjgESkeJFx4OPj+5/MVFhV9U8i48usKysfU3Da5cBNTUV/RfBLYYiUeXIkn773ZzqJMTfmYEU0+vdw8MQENwQahvq5BaA26TNt5Npku4rXlCnorBTrT+1NNsLL8UMAlMt/MqJu0ZM488XfTJumXRc4EGTfx/gkSW/Ueh0L X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Feb 2026 17:27:30.7243 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: bf09b3b9-88b9-4999-3460-08de6a5c0057 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: BN3PEPF0000B06D.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV3PR10MB7723 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. Signed-off-by: Kendall Willis --- arch/arm64/boot/dts/ti/k3-am62d2-evm.dts | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts b/arch/arm64/boot/dts= /ti/k3-am62d2-evm.dts index a5d5dc0a7bec8c3a5dfa63e984ae398af3ede7c0..768aeeec0e8d6c1f6f1dcca442d= ae15450ce6c2f 100644 --- a/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts @@ -241,6 +241,13 @@ AM62DX_IOPAD(0x01cc, PIN_OUTPUT, 0) /* (D15) UART0_TXD= */ bootph-all; }; =20 + main_uart0_pins_wakeup: main-uart0-wakeup-pins { + pinctrl-single,pins =3D < + AM62DX_IOPAD(0x01c8, PIN_INPUT | PIN_WKUP_EN, 0) /* (E14) UART0_RXD */ + AM62DX_IOPAD(0x01cc, PIN_OUTPUT, 0) /* (D15) UART0_TXD */ + >; + }; + main_i2c0_pins_default: main-i2c0-default-pins { pinctrl-single,pins =3D < AM62DX_IOPAD(0x01e0, PIN_INPUT_PULLUP, 0) /* (D17) I2C0_SCL */ @@ -587,8 +594,12 @@ &main_gpio_intr { }; =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>; bootph-all; status =3D "okay"; }; --=20 2.34.1