From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-0024c301.pphosted.com (mx0a-0024c301.pphosted.com [148.163.149.154]) (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 8B22312C544 for ; Sat, 5 Jul 2025 00:59:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=148.163.149.154 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751677201; cv=fail; b=Z+Ut1NpcVyHJEGjuDbIu1FNQ+X+IWCOM53EXL+F7afFL/3pVGds/mPGKFWVM74+e9WM4HstYamj4A/NQj2fFTh/6O7GP9mjUBbgOfF8tUHTxNvueojyWCmDqKiRMg7iEM0Iw5rn9GxX/r+wTodRG/Sa3Mtd4Zl4oyT/XO0AqA4M= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751677201; c=relaxed/simple; bh=C6YQtTWwTRXNtOkEeMKlE7Y+AwvMPXwgHcUkGl+TlBA=; h=From:To:Cc:Subject:Date:Message-ID:Content-Type:MIME-Version; b=KqlZRn6by6V4xr0uOK41U9dNZpXREOyCekVG1BElWdWs5fVXTWMtx2FXUe7h+8kI8QOlMk6OvJmBY5vgal7F+baBA4HburBPwz5/xvPg8gGELX3+oIP9Yl/sSxiGKGMVMYcjAiATUOosPzM+PC2oPA2l49JupkqPrnk5FGe8nc4= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=silabs.com; spf=pass smtp.mailfrom=silabs.com; dkim=pass (2048-bit key) header.d=silabs.com header.i=@silabs.com header.b=O6LeEscq; dkim=pass (1024-bit key) header.d=silabs.com header.i=@silabs.com header.b=GLI5/+vA; arc=fail smtp.client-ip=148.163.149.154 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=silabs.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=silabs.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=silabs.com header.i=@silabs.com header.b="O6LeEscq"; dkim=pass (1024-bit key) header.d=silabs.com header.i=@silabs.com header.b="GLI5/+vA" Received: from pps.filterd (m0101743.ppops.net [127.0.0.1]) by mx0a-0024c301.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 564No2mD017370; Fri, 4 Jul 2025 19:40:53 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=silabs.com; h=cc :content-transfer-encoding:content-type:date:from:message-id :mime-version:subject:to; s=pps12202023; bh=vC5DXgAlhmVOly+u9Lzx vUv7+eR6tGI95faplIDzp0Y=; b=O6LeEscqQNVo8teGsr3B2bvH3naiaUNhWksK A3JKG7b0rKZcKye3aPSM9+fPD5AxbDiZv4z+xYfZLnJVnmK3a3faLS83Ojcf6i5O iWGe8OGZE2DRbRwCpg8RgHqTwoZqdcuVYOBr72yFQAHD62/QZjvCBECoBd3JhQv/ Q03beutYy8Ly2h5dN3Am3kX017ckls/L5CHWdNXWLP5aUruAZ9DWwG/lMyVN2djw QS2fpLUVz9lceLc/YjiD4ZrvOogZEUYK5gBEqq/v7KTtlFYIdjOvBphb+/1qlvIN tg3S0fUH64bRnm3MPcycUeEKMfkJf7n5VrfstvBxqkX6inxnFQ== Received: from nam12-mw2-obe.outbound.protection.outlook.com (mail-mw2nam12on2109.outbound.protection.outlook.com [40.107.244.109]) by mx0a-0024c301.pphosted.com (PPS) with ESMTPS id 47p8pvhb7y-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 04 Jul 2025 19:40:53 -0500 (CDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=acj4WX6WhNPqOxIc1BkRMkIhi5YQ46GYfIM+wHCDnYecGZ/lQuwTYiw20ScOW7txOCaV5MhCf7JPD2OMaw1J54absWmuFfDvZBMf4mVRFhZuUI2P8ICBSclJGvdTLWcZgiy8Ey+cp5XhxRjrXmX8idFT107z6fI4rzxciRnIWHx8lWji3v7APi4+yJt6T1zrYLIacc81B/9cOx/8iuWfWsOOt3ZQRxXt0Mjq+UfvJoJ79rPhwsNu7hWjjxYRaGiroylXp7/MguK1SEwP26VbB1WIiK0SJU+m602nUxkG+9WFYYY+kbkAPiZ4zOT+lB5hI2ICQBBGLUoSvOVkhIUbyg== 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=vC5DXgAlhmVOly+u9LzxvUv7+eR6tGI95faplIDzp0Y=; b=IigEw4ieR66qoK8TNnzCWu8Bh8KF6VsVAZMIHSdSC2c9URNfcIzoWp7WezpaHn8iR1m6wTj/7dvc1B++3920iv7gl1k43JOiX0VHA9XXfLXz+n6StgWQD0PpxMaiqFHwRxHS6T/OBQjyf1z6Nl0k7Gd3lHOofg6mW8AZwSvkbQftdWEAtp7Ygkx2EVB+kd+bvCjF8M/ckYTLLvGnVeOB1EGdjpzr+JTr70nABnLCtpFzG9INA0ihPsRRSul7zeCdqcNhlJ9JDWwe20tmAkL3W0CrI/xpcIwH0VFcrxS/vcstYk6ApMU2qtUH/c6rmBqWLzI2amed3jWRaiyiy6zRrw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=silabs.com; dmarc=pass action=none header.from=silabs.com; dkim=pass header.d=silabs.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=silabs.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=vC5DXgAlhmVOly+u9LzxvUv7+eR6tGI95faplIDzp0Y=; b=GLI5/+vAlrvX82dJ29M2E3Ajp8vV8H3Np3McWmR4h58Phh33EAEgeB8JvHqTLD7Ih7rhKJBtuEiwf1p+Grs7Cb0GZCPbzqi8bnXQdsY/MXOETS+vJeNIudFzmZCyBH099KVW4s71p8pFY5aSST1Q4JAJqKxPtpo3ulF0KngJJNQ= Received: from DS0PR11MB8205.namprd11.prod.outlook.com (2603:10b6:8:162::17) by SA2PR11MB5068.namprd11.prod.outlook.com (2603:10b6:806:116::10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8901.23; Sat, 5 Jul 2025 00:40:50 +0000 Received: from DS0PR11MB8205.namprd11.prod.outlook.com ([fe80::c508:9b04:3351:524a]) by DS0PR11MB8205.namprd11.prod.outlook.com ([fe80::c508:9b04:3351:524a%4]) with mapi id 15.20.8880.034; Sat, 5 Jul 2025 00:40:50 +0000 From: =?UTF-8?q?Damien=20Ri=C3=A9gel?= To: greybus-dev@lists.linaro.org Cc: linux-kernel@vger.kernel.org, linux-devel@silabs.com, Greg Kroah-Hartman , Alex Elder , Johan Hovold , =?UTF-8?q?Damien=20Ri=C3=A9gel?= Subject: [RFC 0/6] Introducing CPC support in Greybus Date: Fri, 4 Jul 2025 20:40:30 -0400 Message-ID: <20250705004036.3828-1-damien.riegel@silabs.com> X-Mailer: git-send-email 2.49.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-ClientProxiedBy: YQZPR01CA0029.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:c01:86::26) To DS0PR11MB8205.namprd11.prod.outlook.com (2603:10b6:8:162::17) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS0PR11MB8205:EE_|SA2PR11MB5068:EE_ X-MS-Office365-Filtering-Correlation-Id: bdbcb058-5202-4682-fe8a-08ddbb5c96bb X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|52116014|376014|366016|1800799024|38350700014; X-Microsoft-Antispam-Message-Info: =?utf-8?B?SDZTbUtNdGRtVHpxVklvQnhpc0hVeDdsWUtOVVhFUlg3cFVCRWtObm5EbXhJ?= =?utf-8?B?SUpta2J1UEdtWWJhVVdiRitSeUNkeVVSaklNa3RnTlpnNVU4VHpsNkR0eXFE?= =?utf-8?B?UXl4UlFxSm5aaFFrMyt0TXlwb3o5aWZUaS9PK3BzU1VnMURvNjc2czV3WU9x?= =?utf-8?B?bzljNUJ4eEJ6UFJ4T3BBR0F1WG9BOThsWVpyRndCTm1XNUlWOTAzQ0JnaTBh?= =?utf-8?B?Rnc2U1E0NW9XMlRTTlNYWk9mVlMxTlhwUCtzaE56V0ZlbHkrZDcxUmtwblNl?= =?utf-8?B?OENYVEJuSWNGNnNmODZCYU9UOW94ejgzMk5mVFJFSzVBSHZKeXJ0RS9MNVkv?= =?utf-8?B?SWoxWjZZUWx4UEpQQW5JU093WlhBbXJicnpBcGptZXNXbFhsNU9wM0tjcVhk?= =?utf-8?B?cHU2TWhOVjAzc1pJaHYyejlTazBobTRoRmdDdG9BVTVqUFBqeURQdFV0SE8r?= =?utf-8?B?a2lzZ2tMclByVHN6V1loQUl6dzk3Z01udVZjblp6WWdmSGcwb2ljNktUMzhh?= =?utf-8?B?Uk1HTE5WdXFiWnRlOFluSG9HVE0wYzlXbndyMGJpZEc2UEFka1ExbmRvSHRP?= =?utf-8?B?UVdWRE44bWNDbVA4TWJPYVN4eVhhRXhIWnArRzFFVDV4ZFhsdEhPZ3lKY3JQ?= =?utf-8?B?K3BUOW1KeTdVZjMzOFZXT0U0NGJJQjA4L3RUK3lLS0NhQUVGTE14VkdacGNj?= =?utf-8?B?T0hZVEQ3bFdhM1kyUzhiWUE5L1lRVWJEZzR6U0NkQktqeW4ydFp6OFQwNmsv?= =?utf-8?B?R2o1ZGNrQlFCcm15ZG1DUXFYMytlMFdZOUxFbzdCZU9KbktQb3AvNmFKYkUw?= =?utf-8?B?T2V2OW15YU9qcGl3N3Bxb0ttUVp2TW43N1VmN1RwU0FoNCtiOGRVNHVtbTBo?= =?utf-8?B?MGp2VmVxaHMvYS9EOFRCMklqVWlLS3J2SlFaeXhoUXBwSmJnY2Jqa2VmaTBK?= =?utf-8?B?Qklac1JzbndkZktqNU42TVhqM203Z0tFTnRieEtmMEIxV0oyWjlTL3E4VWQy?= =?utf-8?B?WWVTUU9TZnM0V3FaVWxnMnMzU0JkVmFqa0Q0ai90VFJpMW00SXJTVWVIbHFn?= =?utf-8?B?OTRxODlpRHVLbkVvbS84SHJpeUpWNTVqV0VBaHVieGJVUm5mYWwyZGxuU1lU?= =?utf-8?B?Z2lRN0Q4WFlPbDhGcExBVW40MTFHWHp5VC9lZnQ2WjdrOVhVNGxZK09kRUEw?= =?utf-8?B?SC9vbXZRQWFCbVhoYkpLajNBQUNvSjF1dmpXQVBobnFVUy9jbXV5dy9kc25W?= =?utf-8?B?MmtNWDJkN204V0hnSFlNQldiQUtrWFExN1Q2QzgzeTVONFV4M1FUL2pidWZU?= =?utf-8?B?blpiNXV0cXB3RmltMU1DY3ZjbURGUmlxZHdUR0JueVl1Q3dQbWhhRUFOMThz?= =?utf-8?B?SlE3TEJxcFdZa24vVGdzTnducG8wU2R1Y0E4M2dqNEJuOEVyZnlXUUgrUDVp?= =?utf-8?B?VklmeFRwMjBka292TUd5YVg3dUZ4cC9lTWhVT2psU25QVWVJNFJnZERWcDlP?= =?utf-8?B?UXozRnpMSzRZeW0raTRTbENoa3NGN3dmTGFSVnFpZXUzT1dydHpKK2xUdjhB?= =?utf-8?B?ajg1a25WVG8rVUZVSXdLakEyazQ5QUhJTll5NVU1WENZUXExUXBKVGtXOWNV?= =?utf-8?B?S2RUa2l6TkN0K3ZWQ2FtVHE3ckNZSUZ6dWRhRzhkMGJJT0Fmc1BkSWM4QkxV?= =?utf-8?B?ME5XTlgvd0R6d1BFd3lFWkJGWXh1OHIyTWF6bG0weHB3UDNWN1Y4YWowYi94?= =?utf-8?B?UGJ5SHZHUnJGUUlWbGZCc1hQRnlGaTBYZFdVZEVFcXNMYmowRWc4NUlWeUMx?= =?utf-8?B?NUFhaHdDbTcwTmN1cWJtOG1zTVNsMUQ3YWRwWkRpQW9NM2YxeVJROXl6eUxs?= =?utf-8?B?YklpcXR3YWRVVjloTHlhVmY3TGV5VDNqK2YxeUtjcnA3S2lsdldJdVRGVG5T?= =?utf-8?B?VStmS01CZUZ3Ym5RdU5IeFp6eWs5T2YzTzZscEZMVTdUeG1yenVDTkNWdDFx?= =?utf-8?B?QUF6dUlFOGZRPT0=?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DS0PR11MB8205.namprd11.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(52116014)(376014)(366016)(1800799024)(38350700014);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?NDNPL21LS1V4NGpOeG0xVkFOSlhwRzZlSFdJRW9LQ2tQMDJkeS81c1BGbU1q?= =?utf-8?B?QlB1U0RMdkhwV3NXL1BZYUJuY2YrOEoxdlZreVBYeGdDMjJjQUVHUEJoV0dS?= =?utf-8?B?cU9sWXdBQkpXaEhTdGo2ak0rRFJJQnZqeGNBMlZBTlV4Z0cyeEZQaEtvRjNa?= =?utf-8?B?cXBvaHZDWGs2dndmeTRUSkphK3dEWk1LcjdtbFFxUXh1c3RQQlByV3FNZzEv?= =?utf-8?B?YTdLOFpMTWk4ZWhUdW5IK09yRXJLRW1SZGNUb1oyZlJRYW5JbjJEUkFXa3Ji?= =?utf-8?B?QlVOMEU3bnIwd3loMndScXdCL2tGendyWTg3S3BEQitwNnBRNjBsQkZha0hK?= =?utf-8?B?VGlSTFAwYmxvWDdjei8yLzJkUGFjL1RoVUFTWWd4VldUYXFZY0l4ZC9GYVJR?= =?utf-8?B?MXlCaDhFR1ExM1RhVElnb3V0TXI2M01pV1FmRmFhVHFjNmN6dnQvbDlEQ0xQ?= =?utf-8?B?dEdFNUJGZWt5NjFyU0l4RzVkU1c2ZTdmdEo5ZlBvWjIrSEJLSThFYjMxOTI3?= =?utf-8?B?UzlMZGFIVm5HT0lWVXBIR0szM0NKMitkT0xEdkhma0V2S0FPNHk1NmJSc3BO?= =?utf-8?B?anZxSDdXV014ZHphZmlsZlVTSXNhQXUwRXROdVZxYVBpSGF0bkg1Y2tKOFht?= =?utf-8?B?Z2lXckcwUnVrNm5xeklDcnFtTFc1cldPVEJGUWh4Y3ljc2p4OUFsQ1BtRjk5?= =?utf-8?B?ZGlNZDB1V3B0dXdWQXYzSmUrUElEaGE4VERhcWxHQ214c3E1ek5QR29JM0Ra?= =?utf-8?B?eXZEV2JwQnlxR0JxdkFFdFFKTm0wSURrOTl3cWJUaXg0UXgrbm03T1l1QlVo?= =?utf-8?B?dm1kVHVRYkFaODlyM1RjemxENjRGYytxRXdpZjBHTW13REhYR1Nra2VGcDA2?= =?utf-8?B?Vis1NDNOSzhqaVkwd3p5QzMvRndZYjVtc3N3dTVYK2NGbXdTZ3B0bVVmSWdW?= =?utf-8?B?eUY4bHZKYm0xME9mV0VaakRYOWpGejlpU2NWTHFXT0FONVU0V2RqWFU0bXQx?= =?utf-8?B?QlR3VWJEaHA1UzRaTURhRTc5VStRanh0YmZVZmhtRHlGVTRGNGNsQVZFQ3BQ?= =?utf-8?B?bDYxSzVrQVJKRlNOa0RvNTY0VGFpem5xeHVwd3FFTjcvMEF5RDNqRWZvQzk0?= =?utf-8?B?MUpWRmF5VnNialdlOXBITHQzbjJGSGFrajZ3WGVjbzBRZDVmMS9ZbFF0WG1C?= =?utf-8?B?QUUyalJVMkxnMWVZL0ZLM21UelZiSzJPUWRMUGtWc21kVldSK1F5U2Qzc1Ex?= =?utf-8?B?cGVwTGpiNVdlK282OTV2U1luSTlVTVhQN1VBVGhqNUhUQUc2WkVGalQ2aC9W?= =?utf-8?B?U0MxK2luODY0TlkwMWl3bGJZSlMrcnh5TXlyMit0UW10c0NBbzNIeFBVQ2R2?= =?utf-8?B?dW1ocmF2cUNubnZib1B2dTJMaU9UNU9nSkRaU01udXRoUXBGM0xXYWFTOWda?= =?utf-8?B?OHkzYm8zRFY4SXdRYmdaazJIb3kyNGR3UmV3akhyN3ZkOVYyZXhwZGR0MW91?= =?utf-8?B?RUZzUlRKRlhVSXZOZGJwYndmS0hNa0dzeEsyYzNVWFpIU1B2RGJZeG8veHFC?= =?utf-8?B?SjdiNGNhODN4b3JiTTJLdUZVM095a0g4d0FxeXlwVjRsTy8wOVM0bUZaZ2RI?= =?utf-8?B?Wjd1aUcyUHlCTThTbE5OajJKWjdYTldvc3B3MTZTUXdZMElJTkN1RWE3R2VQ?= =?utf-8?B?d2o0NFpIR3BqakJQaU4yRGJlS3ZVVUZmSEZ0cVVTbDBuUmQ0bFd1VzY3ZGly?= =?utf-8?B?MTFHdmoyZ25sMlpycWlxYURCMGUvYjJxODJwRyt4WFl5Z1BISnAyQ1p0azk5?= =?utf-8?B?SzdpSmdHSjVYMlVhQ1c0ODFnVGtDMk1kNUV3L1ZlcWE2TW54SGcwdFR1bFAw?= =?utf-8?B?RXNUcUNXMjdIalhlLzBaWStkNFdESVhpYmRocHBkOXFkejNETll5VG16ajVV?= =?utf-8?B?UmlIaUF6dlFhZmJuTnpFcGh5OGFZaDhpd0tmclNXckQwaVRxT3FLbnMrN0V3?= =?utf-8?B?V05aVkJ4YjFackhiVzNxc1hDTE1hb1VGUVVqOS9VcEpONG1pSzI1QzRnNG5L?= =?utf-8?B?Z0lzQk5ncU51NnhyUGZjaS9OOUVlVzZvVmtJLzlSaUdCMFd3YUZUb3JjcnBG?= =?utf-8?Q?G54/cvt+GNMPWNlYptu5OGmU3?= X-OriginatorOrg: silabs.com X-MS-Exchange-CrossTenant-Network-Message-Id: bdbcb058-5202-4682-fe8a-08ddbb5c96bb X-MS-Exchange-CrossTenant-AuthSource: DS0PR11MB8205.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Jul 2025 00:40:49.9030 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 54dbd822-5231-4b20-944d-6f4abcd541fb X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 6UH7XNj7aAhof4ICmudJSneyDoTDOJiOdFqY0+MXtbnYUahftKWgmNg37BSV1PXX4iHvkm0dChm2qPku8zKMlg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA2PR11MB5068 X-Authority-Analysis: v=2.4 cv=L4EdQ/T8 c=1 sm=1 tr=0 ts=68687495 cx=c_pps a=U259+el5m5zn0mdk/7qTUw==:117 a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=lCpzRmAYbLLaTzLvsPZ7Mbvzbb8=:19 a=wKuvFiaSGQ0qltdbU6+NXLB8nM8=:19 a=Ol13hO9ccFRV9qXi2t6ftBPywas=:19 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=Wb1JkmetP80A:10 a=M51BFTxLslgA:10 a=i1IsUcr2s-wA:10 a=ohFfYe4MfOH-M26-6C0A:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 X-Proofpoint-GUID: 2jlZIW74WXTGYaH2XuLqVmJXJajFt0ES X-Proofpoint-ORIG-GUID: 2jlZIW74WXTGYaH2XuLqVmJXJajFt0ES X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNzA1MDAwMSBTYWx0ZWRfX7vNROr9tSQls rDwtnzA3TIo0hDMPe0uOJJwMXguWVsuuWXWX1fr5Ozbk8H3cBzR1IXTU7tqFytnbQMVJxf3dl0c yeZbvY45XxfAWt+a9SM9/fhh7xBTrQ8Fm7Z35BEE7hlW/nZkk+IGMyaL+eeZYQGBy6RCcw7V+Jp 8xRXlsYEDJCLyzUAJogklGnfxIkR7R7Ca1btW3rRijYlkY5Ydl5WCyCqdiNzpBjoW34RqI3KaPG iQVfs8eil6WGeLCmwUYbXF7XbssODKhXA8wH1xPNTGWZliYb6LPuMD1QpTp2l6ZhU8RPUGQ6pMa G161UtB7Qi17gluywZbriWfQQkJVJfULQl3PFN/O5fjK/oQ56ecHQuhXcg96hSvoLUHxChEQ3t7 3Pt0g2+9PbfR66Bu5W55LLiLWtYIn90SM+Z791S5OYMbbu+v3T7MPxVBaY62lu1AqK8+CUDX X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.7,FMLib:17.12.80.40 definitions=2025-07-04_07,2025-07-04_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 mlxlogscore=899 priorityscore=1501 adultscore=0 malwarescore=0 impostorscore=0 bulkscore=0 mlxscore=0 clxscore=1015 suspectscore=0 spamscore=0 phishscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.21.0-2505280000 definitions=main-2507050001 Hi, This patchset brings support for Silicon Labs' CPC protocol as transport layer for Greybus. As an example, a SPI driver is added as physical layer and everything is bundled as a big kernel module. In the future, as we plan to support other physical layers like SDIO, CPC core will be its own module, and each physical layer CPC driver will be its own module as well. CPC implements some of the features of Unipro that Greybus relies upon, like reliable transmission. CPC takes care of detecting transmission errors and retransmit frames if necessary. There's also a flow-control feature, preventing sending messages to full cports. In addition to the host device over SPI part, there's also a class driver for a vendor protocol that enables Bluetooth on supported devices. This is mostly there to open the discussion on how a new protocol should be added to Greybus. Damien Riégel (6): greybus: move host controller drivers comment in Makefile greybus: cpc: add core logic greybus: cpc: add SPI driver greybus: add API for async unidirectional transfer greybus: match device with bundle ID greybus: add class driver for Silabs Bluetooth MAINTAINERS | 12 + drivers/greybus/Kconfig | 2 + drivers/greybus/Makefile | 4 +- drivers/greybus/core.c | 4 + drivers/greybus/cpc/Kconfig | 12 + drivers/greybus/cpc/Makefile | 6 + drivers/greybus/cpc/cpc.h | 135 +++++++ drivers/greybus/cpc/endpoint.c | 158 ++++++++ drivers/greybus/cpc/header.c | 212 ++++++++++ drivers/greybus/cpc/header.h | 81 ++++ drivers/greybus/cpc/host.c | 113 ++++++ drivers/greybus/cpc/protocol.c | 274 +++++++++++++ drivers/greybus/cpc/spi.c | 585 +++++++++++++++++++++++++++ drivers/greybus/operation.c | 52 +++ drivers/staging/greybus/Kconfig | 9 + drivers/staging/greybus/Makefile | 6 + drivers/staging/greybus/silabs-ble.c | 203 ++++++++++ include/linux/greybus.h | 7 +- include/linux/greybus/greybus_id.h | 2 + include/linux/greybus/operation.h | 4 + 20 files changed, 1877 insertions(+), 4 deletions(-) create mode 100644 drivers/greybus/cpc/Kconfig create mode 100644 drivers/greybus/cpc/Makefile create mode 100644 drivers/greybus/cpc/cpc.h create mode 100644 drivers/greybus/cpc/endpoint.c create mode 100644 drivers/greybus/cpc/header.c create mode 100644 drivers/greybus/cpc/header.h create mode 100644 drivers/greybus/cpc/host.c create mode 100644 drivers/greybus/cpc/protocol.c create mode 100644 drivers/greybus/cpc/spi.c create mode 100644 drivers/staging/greybus/silabs-ble.c -- 2.49.0