From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from AS8PR04CU009.outbound.protection.outlook.com (mail-westeuropeazon11011045.outbound.protection.outlook.com [52.101.70.45]) (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 A5DE578B50; Thu, 18 Jul 2024 07:33:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.70.45 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721287999; cv=fail; b=IRnoJrwgrWLM8LOMmpEcmJ13g0n7HPwkFgeE0Ie+5QWnW/1M1+ZxXb8hXZ0u5DES56NHsA6H6Va74OPWGuz9at4hPBceuqCdubEsIbuMiufo32gfjyZbE4Ah+XqYfWbjZ/uVlUwWKtUxaPAcnhAHZd2L7XJF4v//8DmlQPSsYts= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721287999; c=relaxed/simple; bh=E5LpsSI+IBisa2obdH4gzsQzu8srJbB8PmQjInA7uFI=; h=From:Date:Subject:Content-Type:Message-Id:References:In-Reply-To: To:Cc:MIME-Version; b=pt0unNsT9zjIE1Tk+uTgOZCLMS8zFbIe8Jp37jGKtvvUo+a7ABzYOdbap7f0SalSbLlAvNCcRw4Npk4iy0tRKpBg3n5CsOhMX78hoM1uPCQ4D0g98oe4L8vOOrXJFBWUXRslJvAJshJ4f+CU+q6i95n5n1EimEvjgd4IL37Vlo0= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=oss.nxp.com; spf=pass smtp.mailfrom=oss.nxp.com; dkim=pass (1024-bit key) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.b=Oi5CCZvh; arc=fail smtp.client-ip=52.101.70.45 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=oss.nxp.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.nxp.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.b="Oi5CCZvh" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=iH9N2dcvKVta1IgFEz6rVv4/1dNMMg3YjAFHI75GxLJr0kq+60DNtfnAGW5JMHGOdqOoKzq5NFHz6lsqS7oviYaW+S2a8XChEHR+PuARCh2zi/2bI6WRI5xMa6NlvKcpyDrSSg1eNaHv2zWAuJKPUe5n2HaJ+rsvKUKl12GTIhEUDvLa1wUkUXxukYT8sd7xa7Ayw0gI8P19F87l1hgg6GGiL81KyLlsUKPgdKAOY7qTOEOt9wmSQAWcUacs/bPcqh+HkVIxftQ0CRZzGKOW5uD/VbfJ/fOYfC1J0RVWt0fPLZZG6gSUWTYY+QmCLWUB+9kWGAczuYsYjw+vFMPL/g== 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=9xkagEKIddeT9VSxKdk2VEbIxtLknUAa+k5fp4B5DyM=; b=HRpuXqn/Wor06ycy3fUFBmve1JyE9Yvw0dShNtqbALts3+iTVuAVtjLtecpxUn6q6RPWIVs58ZGeTAymSNe3jN5VACwBx+D+CAweOj85D+Zs4a+ZjdGkS3SJOwDOGpge662TTZLi+sWFrLgdnrqUlGngYJ3O1TK8b5bS45/ELzx+jQP5sgmc8fWevziUYnSaXt73hk5Xb52p31ulqx4wqIkwa3fmHdfMa4OHFsQzA4K/UFH0ueRSeR4PtlL4GGOhk8YZckTBnhAa9/GxsdHFuGOt/FYI5hAGZkesiE4g0ImfK/kVgMIsAKhki3PyWAvDJTRh1wUj4Y2pOwpZNpq3Rg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oss.nxp.com; dmarc=pass action=none header.from=oss.nxp.com; dkim=pass header.d=oss.nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=NXP1.onmicrosoft.com; s=selector2-NXP1-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=9xkagEKIddeT9VSxKdk2VEbIxtLknUAa+k5fp4B5DyM=; b=Oi5CCZvhKJxpVdcx2q1UKiex+veXn3zq0W7rA8R0s1mi/e205mEb9oUGEAalk0EJj7GJq263exURHjC2ST45I2+ZbESSloLN2OcpL64j6vEGYTpdBt84btSskqe6ZfcBgN6OUrzdy7LIwFp+imv28yzJpXlICmPhpVoUml/3eXA= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=oss.nxp.com; Received: from PAXPR04MB8459.eurprd04.prod.outlook.com (2603:10a6:102:1da::15) by DU4PR04MB10457.eurprd04.prod.outlook.com (2603:10a6:10:561::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7784.16; Thu, 18 Jul 2024 07:33:13 +0000 Received: from PAXPR04MB8459.eurprd04.prod.outlook.com ([fe80::165a:30a2:5835:9630]) by PAXPR04MB8459.eurprd04.prod.outlook.com ([fe80::165a:30a2:5835:9630%4]) with mapi id 15.20.7762.020; Thu, 18 Jul 2024 07:33:13 +0000 From: "Peng Fan (OSS)" Date: Thu, 18 Jul 2024 15:41:54 +0800 Subject: [PATCH v6 2/7] firmware: arm_scmi: add initial support for i.MX BBM protocol Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20240718-imx95-bbm-misc-v2-v6-2-18f008e16e9d@nxp.com> References: <20240718-imx95-bbm-misc-v2-v6-0-18f008e16e9d@nxp.com> In-Reply-To: <20240718-imx95-bbm-misc-v2-v6-0-18f008e16e9d@nxp.com> To: Sudeep Holla , Cristian Marussi , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Alexandre Belloni , Dmitry Torokhov Cc: Peng Fan , arm-scmi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-rtc@vger.kernel.org, linux-input@vger.kernel.org X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1721288528; l=13923; i=peng.fan@nxp.com; s=20230812; h=from:subject:message-id; bh=m4/zUnBHrvUCml6LwbVFtKf2AEb1qkvpVEohGFcAPm0=; b=egMFvfpmIl9jECaizNKqWYP7F4mMKqfzSeHZPbApLHRLsGrqfXUvWqi6Ps2KU8bsASE4YtHZI Q1PZV9EYFvjAEqJZsXiwwLNQqmCzFWxAN2iKUqqXkQl7lvZOpZMZ8+s X-Developer-Key: i=peng.fan@nxp.com; a=ed25519; pk=I4sJg7atIT1g63H7bb5lDRGR2gJW14RKDD0wFL8TT1g= X-ClientProxiedBy: SI1PR02CA0046.apcprd02.prod.outlook.com (2603:1096:4:1f5::14) To PAXPR04MB8459.eurprd04.prod.outlook.com (2603:10a6:102:1da::15) Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PAXPR04MB8459:EE_|DU4PR04MB10457:EE_ X-MS-Office365-Filtering-Correlation-Id: ead6aa7a-3191-4d16-205c-08dca6fbe1a6 X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|366016|52116014|376014|7416014|921020|38350700014; X-Microsoft-Antispam-Message-Info: =?utf-8?B?QlpKZFhpQktvTjNGajZHdy94OEs4UFo4Tzkyd2ZrWmd3N3NPVFJLbklBbXhk?= =?utf-8?B?KzhZemV5ZXU1MGs3KzNMSGVNREQwUjVIMHNTSjdUdlhETVJ0bENuQ2JXTVZ3?= =?utf-8?B?UzZITi9vdXQyMjcwVHgrbUUvRVBzNWJmQkhVWS9sMGU1VjZoZ0hUODBsSDlT?= =?utf-8?B?SnhMb3BhNnM4dWdJSWdGeDFQS1FDU1crTVRrem1DdW1XUFZhZ0IrZGhHL0ZF?= =?utf-8?B?bDBHeFdWQW1KOXRWOURVT3VaTXJiWS9xZkpienVaUWxXN3pxMENVZmJtU0xm?= =?utf-8?B?OW1uL0F1Wm15bERlRkExWTMzWGZCcStxQzdScDBPWDVFU2E4b3g5c2ZmMktS?= =?utf-8?B?TS9nbjdJdmVvdWZoczVnSGdUcGNlZlBmaE5xUnhoMHprbkh6bEluempzdkpD?= =?utf-8?B?dEUxUjlKVmtmbGZpaGROYUhaMGxGQ09nV0J0bEhSYnI1RTBkbFBVZ1ZaRW9X?= =?utf-8?B?YytVb21Xcm1KZys0VEZrVzJHRkwyQXFpTnRrb0hvMEhGbmpob1pCMkozOWcv?= =?utf-8?B?cm1VakFUR0IxZVVrdXBQeWx3bmlUMnVtT0ZLTnR1NXRNcDRPNm4vUnRFMEd1?= =?utf-8?B?YmtOR21mTkFHR01veEFibE5xcVVPdVE2Nm1sRWxONkl3VEE2R0RBNnI1UTB1?= =?utf-8?B?bFlvMjFJdDZ6RndCZmM5bHRQci9ZZ05ZdzdFclR4OC92MFZ6QUc2b3pYV2R2?= =?utf-8?B?VmJ4VW1VNHpPOTJLVjdNVTc0RGRZbGxweDh1L3pJczZkSWJVeTZXdDFmbDFY?= =?utf-8?B?bHRXNlJHeSsvNTY3UmRmV0pGZXpYWEZPSEN5cDFpTUtjUWQ0QkRxb2h2elQv?= =?utf-8?B?c0NjTFE5ZG1uRTVqRzlhSFV3aDZIeGFYcUhxZ1B0amxUT3JNZVdFZC9OK29t?= =?utf-8?B?K2FWTitDY3JwVTdabHc1V01CMDJoeVFrbHhZNjJpbFEvaWRvR0xqWkk2VGVi?= =?utf-8?B?Nm9haFBtemtPU0NKM01OU3hIbDYzQzUwYXdCSWZJVkFkR2R5TVN4c25rL1lW?= =?utf-8?B?R2ZPN2hoNjFORHNaYXFHR09PM2lVdXdseTJRVHlyVnc4WUs0cFZkUUg3Nitl?= =?utf-8?B?WWV5aGtobXFORXl0aXJuVEw1TTQwWnhvYUFKd0Q0a2ltTjZZSDJGWlFNZ045?= =?utf-8?B?aDJuK2FML0cwNmxQdHY0aHlnRkF0K3A2MFZkYkEzd3RVakxDWFc3bHk5SURE?= =?utf-8?B?cDUwUEtBbXVmaWRQa3J3Z3pBWTB1bi9jQzd3KzAzSk12YitVUmJ0elVSeWJn?= =?utf-8?B?RnNHMHU4M2dKVEw2ZXBibGI4OXAxVVFDdlVjcnNqYnYvMk5NU3VObTZRQWpY?= =?utf-8?B?bVU3WjFIaXlIU2tiV2EySkJ3UGp6b3FLa2xQS3loMlc3UzBzQzhmeityRkNI?= =?utf-8?B?UC90YlA2YWY4QVBBS0NhWXJ4REdiWDkxdW9nL1ZNbXhGT3NiQ2s0Wm9lR3Bt?= =?utf-8?B?WFMvK0IyNEQyeUJJV3lzNlFncWN4UEN0RTR2ZWNWejBheTJ1MVYwbWxCZjRs?= =?utf-8?B?WEFtcXVIRFNxVTRrNlRuT1ZDTnR1YmR0ZmR6WGJJRFA1djNidVUwaWorbVdi?= =?utf-8?B?WHI3TG1SaG9rL1YyKzFkNWdJbGZMWHRNMENGeHJ4OC9sZ3NnTE45R1Q5VVpw?= =?utf-8?B?bFhkM1VKdm9xSFlIK2JIdW1nOUFNbTBEeTlSeHA4TFNOd0h4ZGJXRmRzS3pF?= =?utf-8?B?QlU1WlhBUXVkeWRSYnhBVEF4Um9kbjhjVHZRQWlqL0ZlWnJ1dnBsZDhVVWQ4?= =?utf-8?B?TG1BUHQ4bzhyaVlJdDJSUnFEZStkLzBpY25HQWtSeU9VaDNxaHpoWDlOeHJu?= =?utf-8?B?eDFkeVE0UEFmcXFTS3VOYWpLNUVKUkxwY0tVZVBtb0FVbEFMN3l2QlpGOFdV?= =?utf-8?B?Ym5XK1VWMWJySEJnTWV0OEJHUm5HVEdMQXh2azVZaDhuZjczMWdRelNaTmhW?= =?utf-8?Q?57gWUGZiAlA=3D?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PAXPR04MB8459.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(1800799024)(366016)(52116014)(376014)(7416014)(921020)(38350700014);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?dFArSWpLS2VSUStGelF4eGRjazVVYmJOSndlcncvUzJXYjQxQlBSTmNuejcr?= =?utf-8?B?TzFlWkFxWW1WVEJ4cVdUdEdRZWRjSmJuVGUyaVFkQU1HRzJxWGNlL1NXOWNX?= =?utf-8?B?V3B2M1pESnVmU2Y4UWsvZFd3aHdma1Frc090eGprMjgxRHlENGEwWFd4WFho?= =?utf-8?B?Y2hlTThjMm5jWStOT3RtTW5XSGJkOFpyM3hFY0JpbUY2b1ZJTXFzOXBHWXRv?= =?utf-8?B?alQ3K0Nod1U2UkY0ak5jL3JRUkw2clVzRGRJSXpDQVNQRStGbkpoL3lpWmxz?= =?utf-8?B?aFlEQzR0V2pCN09BeGpBdGZXV0FHZllJTlpVMlZlVjZMem9SbFBWTW1JQUtJ?= =?utf-8?B?dmR2cm85MllVYkdtcW02WkwrdVZTaEVhVjlIck5abzFCUUpmN094VTVaQXds?= =?utf-8?B?NDVnMWpRQzV1ZlBrYTl1RUg3dks1YkxuS0J5aEhLMjZTSjFIZ3RUSXcrMG1Y?= =?utf-8?B?cCtPUC9WTGxIUHI5VUlNTFVlY1JsZWNQY3IxS3hYZXprM294RjdSTzRSUEFO?= =?utf-8?B?bTdkcnpHdkVzV1VxVlhLRXkrRnNISzZTTzNnYWJqODQ4SWplcmIvYVptTjR6?= =?utf-8?B?bElmZzkxd3FNOTRXajh2TUl6S2lrYVYxai9UaFZCcXlhYlFoTUNMZUxsYWV2?= =?utf-8?B?R0JNaExYOGJIVlhWS1dSVndoZFNSb2tCekU0VUFtc2dqS3lWdGlzTE5pOGQv?= =?utf-8?B?WmEzWFNZZTR5aHAzRFJ4MUVZUzVUai9SUjVoU3gvOEFCQUhhOCsxTjhOYk9u?= =?utf-8?B?NWtjNHA3TVFiL2FQTmRyZzJnUjcyQXFsLzBGUk5hSXdlM1BQcEluREtXNUhi?= =?utf-8?B?dURWeUlsQ3JnY2FFemVTZWdTK08zTnpGalNrSXFmWDlPK045QzFCUml1RWtX?= =?utf-8?B?NThBUDlMeVIvSjM0WDkySzI4dkJPNDI5RlFEK2FWL1MvNm40N1Y1VFBZb2dH?= =?utf-8?B?aTU0aXBFVVhoRjc1eVh1c21UaS9ITFhGcWdhOG1rWGF0UVphZENWY1JKS1No?= =?utf-8?B?eW9odmZHOGJwNnNza1k1d3hEZEdpVGh0LzRXQVhnQ2JkeUpRNmZuUW9xUm1N?= =?utf-8?B?dlcrMEFobnRadW91L3JleldZMyt3aGxvWW5mcVJJUHFkeFVpbTM3bFlFSWR6?= =?utf-8?B?WWY2RGZwWTBTZytUV2xRRitQRVR5a1RjUWxpMi80RmpBbWk2aVpqYzZkNDhZ?= =?utf-8?B?b2JENW5hWTBuSCsrMGRmdzBndGVTRVdCSVMyRjRjT0hzamtCWVpGWTR3bllY?= =?utf-8?B?LzhGQzJuaG8xVFMxZGcyTEMrUnp4VU5ObzNDdUM1YUJ2QkRXR1REcC9rU1Az?= =?utf-8?B?cWNlZThmWlFUM25uOWl5WGgzM3RFMkRjMS96dFczT3dydGoyK3ptdmo3YWhT?= =?utf-8?B?UUxKdjhNMVBFN29xd09NRUxlajNxbnk0aXUwMVlRekEwSzNGQlJJdU9xbjZ4?= =?utf-8?B?RVlQNUtjNmlpbmVWQzhyUVl6S3cvTno2aWFHRlNjZk5LdTVwN25lYUFxQXJa?= =?utf-8?B?cFljM2FlS1AzdlBBSDJycUpzMjYvVjFtTUlaZVJsMVdEaEw3NkNoMkdnYnFZ?= =?utf-8?B?c2VzU1Y3dE85cGk0cW5RUHRZWGRWQVBaT0pOTWJaaHQwWjlBN0FxTnQwZ1lz?= =?utf-8?B?aGRpbVVNTXlnTnBOMGY3OXRZK1VKV0NCOHlqQzgxWHU0aWZXU0tHcS9iQTc0?= =?utf-8?B?UTJiUGVURkhjSzBmTDY2UWZEb01iU1hVbCs5d0RBTkZZOG9RbmpLM1Z2N0J1?= =?utf-8?B?WDdwcGNkbXZFcHhaM3pQVTJXNjZ2bWJyTThTVjN0TTR6SE1qK2JZU09GZTlZ?= =?utf-8?B?c2l0b2JUK1ZiQkVvdGtDQXNqeitLR1VuUkpBSmxQdVZuSms4aERiNlF1Zytu?= =?utf-8?B?bFFjRTN4ZDI2Yk9yVVpwNmJ5bFZHTFoxWEZ2ekkreEU3Si9JSk9kc1F4YWxJ?= =?utf-8?B?S2NPNXJETWIzdlFLUHJjSE1wNFpkWHgwUHRtR2Y3bFdRYzNHbm5RVnF1b0tr?= =?utf-8?B?bzN5SWlDb1BtWnY3M3RlZVV6eUJ2TjNBZXhiZUtjUHJYcUpZQTh4dzdNMW1L?= =?utf-8?B?Vm1PL2dJWGVNd3N2VFpPdnorSnhjTjhMcTdFdlVrUG5YMElTTWo0UXB1aGl6?= =?utf-8?Q?ViD6w3g6SGcGczzNDv6nQdjWA?= X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: ead6aa7a-3191-4d16-205c-08dca6fbe1a6 X-MS-Exchange-CrossTenant-AuthSource: PAXPR04MB8459.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Jul 2024 07:33:13.3919 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: GJZlkMWJD1AC5ZiRpfDheaDiBODQiMtrcvx2wxZ4mzE6PTcQU8Z/Q16s/6pUfNh6ph1fuQgeT0YytnJ8b3BuSA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DU4PR04MB10457 From: Peng Fan i.MX95 has a battery-backed module(BBM), which has persistent storage (GPR), an RTC, and the ON/OFF button. The System Manager(SM) firmware use SCMI vendor protocol(SCMI BBM) to let agent be able to use GPR, RTC and ON/OFF button. Reviewed-by: Cristian Marussi Signed-off-by: Peng Fan --- drivers/firmware/arm_scmi/Kconfig | 2 + drivers/firmware/arm_scmi/Makefile | 1 + drivers/firmware/arm_scmi/imx/Kconfig | 14 ++ drivers/firmware/arm_scmi/imx/Makefile | 2 + drivers/firmware/arm_scmi/imx/imx-sm-bbm.c | 379 +++++++++++++++++++++++++++++ include/linux/scmi_imx_protocol.h | 42 ++++ 6 files changed, 440 insertions(+) diff --git a/drivers/firmware/arm_scmi/Kconfig b/drivers/firmware/arm_scmi/Kconfig index aa5842be19b2..79846cbaf71b 100644 --- a/drivers/firmware/arm_scmi/Kconfig +++ b/drivers/firmware/arm_scmi/Kconfig @@ -180,4 +180,6 @@ config ARM_SCMI_POWER_CONTROL called scmi_power_control. Note this may needed early in boot to catch early shutdown/reboot SCMI requests. +source "drivers/firmware/arm_scmi/imx/Kconfig" + endmenu diff --git a/drivers/firmware/arm_scmi/Makefile b/drivers/firmware/arm_scmi/Makefile index fd59f58ce8a2..fb9407fef60c 100644 --- a/drivers/firmware/arm_scmi/Makefile +++ b/drivers/firmware/arm_scmi/Makefile @@ -16,6 +16,7 @@ scmi-module-objs := $(scmi-driver-y) $(scmi-protocols-y) $(scmi-transport-y) obj-$(CONFIG_ARM_SCMI_PROTOCOL) += scmi-core.o obj-$(CONFIG_ARM_SCMI_PROTOCOL) += scmi-module.o +obj-$(CONFIG_ARM_SCMI_PROTOCOL) += imx/ obj-$(CONFIG_ARM_SCMI_POWER_CONTROL) += scmi_power_control.o diff --git a/drivers/firmware/arm_scmi/imx/Kconfig b/drivers/firmware/arm_scmi/imx/Kconfig new file mode 100644 index 000000000000..4b6ac7febe8f --- /dev/null +++ b/drivers/firmware/arm_scmi/imx/Kconfig @@ -0,0 +1,14 @@ +# SPDX-License-Identifier: GPL-2.0-only +menu "ARM SCMI NXP i.MX Vendor Protocols" + +config IMX_SCMI_BBM_EXT + tristate "i.MX SCMI BBM EXTENSION" + depends on ARM_SCMI_PROTOCOL || (COMPILE_TEST && OF) + default y if ARCH_MXC + help + This enables i.MX System BBM control logic which supports RTC + and BUTTON. + + This driver can also be built as a module. + +endmenu diff --git a/drivers/firmware/arm_scmi/imx/Makefile b/drivers/firmware/arm_scmi/imx/Makefile new file mode 100644 index 000000000000..a7dbdd20dbb9 --- /dev/null +++ b/drivers/firmware/arm_scmi/imx/Makefile @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0-only +obj-$(CONFIG_IMX_SCMI_BBM_EXT) += imx-sm-bbm.o diff --git a/drivers/firmware/arm_scmi/imx/imx-sm-bbm.c b/drivers/firmware/arm_scmi/imx/imx-sm-bbm.c new file mode 100644 index 000000000000..017183caaadb --- /dev/null +++ b/drivers/firmware/arm_scmi/imx/imx-sm-bbm.c @@ -0,0 +1,379 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * System Control and Management Interface (SCMI) NXP BBM Protocol + * + * Copyright 2024 NXP + */ + +#define pr_fmt(fmt) "SCMI Notifications BBM - " fmt + +#include +#include +#include +#include +#include +#include +#include + +#include "../protocols.h" +#include "../notify.h" + +#define SCMI_PROTOCOL_SUPPORTED_VERSION 0x10000 + +enum scmi_imx_bbm_protocol_cmd { + IMX_BBM_GPR_SET = 0x3, + IMX_BBM_GPR_GET = 0x4, + IMX_BBM_RTC_ATTRIBUTES = 0x5, + IMX_BBM_RTC_TIME_SET = 0x6, + IMX_BBM_RTC_TIME_GET = 0x7, + IMX_BBM_RTC_ALARM_SET = 0x8, + IMX_BBM_BUTTON_GET = 0x9, + IMX_BBM_RTC_NOTIFY = 0xA, + IMX_BBM_BUTTON_NOTIFY = 0xB, +}; + +#define GET_RTCS_NR(x) le32_get_bits((x), GENMASK(23, 16)) +#define GET_GPRS_NR(x) le32_get_bits((x), GENMASK(15, 0)) + +#define SCMI_IMX_BBM_NOTIFY_RTC_UPDATED BIT(2) +#define SCMI_IMX_BBM_NOTIFY_RTC_ROLLOVER BIT(1) +#define SCMI_IMX_BBM_NOTIFY_RTC_ALARM BIT(0) + +#define SCMI_IMX_BBM_RTC_ALARM_ENABLE_FLAG BIT(0) + +#define SCMI_IMX_BBM_NOTIFY_RTC_FLAG \ + (SCMI_IMX_BBM_NOTIFY_RTC_UPDATED | SCMI_IMX_BBM_NOTIFY_RTC_ROLLOVER | \ + SCMI_IMX_BBM_NOTIFY_RTC_ALARM) + +#define SCMI_IMX_BBM_EVENT_RTC_MASK GENMASK(31, 24) + +struct scmi_imx_bbm_info { + u32 version; + int nr_rtc; + int nr_gpr; +}; + +struct scmi_msg_imx_bbm_protocol_attributes { + __le32 attributes; +}; + +struct scmi_imx_bbm_set_time { + __le32 id; + __le32 flags; + __le32 value_low; + __le32 value_high; +}; + +struct scmi_imx_bbm_get_time { + __le32 id; + __le32 flags; +}; + +struct scmi_imx_bbm_alarm_time { + __le32 id; + __le32 flags; + __le32 value_low; + __le32 value_high; +}; + +struct scmi_msg_imx_bbm_rtc_notify { + __le32 rtc_id; + __le32 flags; +}; + +struct scmi_msg_imx_bbm_button_notify { + __le32 flags; +}; + +struct scmi_imx_bbm_notify_payld { + __le32 flags; +}; + +static int scmi_imx_bbm_attributes_get(const struct scmi_protocol_handle *ph, + struct scmi_imx_bbm_info *pi) +{ + int ret; + struct scmi_xfer *t; + struct scmi_msg_imx_bbm_protocol_attributes *attr; + + ret = ph->xops->xfer_get_init(ph, PROTOCOL_ATTRIBUTES, 0, sizeof(*attr), &t); + if (ret) + return ret; + + attr = t->rx.buf; + + ret = ph->xops->do_xfer(ph, t); + if (!ret) { + pi->nr_rtc = GET_RTCS_NR(attr->attributes); + pi->nr_gpr = GET_GPRS_NR(attr->attributes); + } + + ph->xops->xfer_put(ph, t); + + return ret; +} + +static int scmi_imx_bbm_notify(const struct scmi_protocol_handle *ph, + u32 src_id, int message_id, bool enable) +{ + int ret; + struct scmi_xfer *t; + + if (message_id == IMX_BBM_RTC_NOTIFY) { + struct scmi_msg_imx_bbm_rtc_notify *rtc_notify; + + ret = ph->xops->xfer_get_init(ph, message_id, + sizeof(*rtc_notify), 0, &t); + if (ret) + return ret; + + rtc_notify = t->tx.buf; + rtc_notify->rtc_id = cpu_to_le32(0); + rtc_notify->flags = + cpu_to_le32(enable ? SCMI_IMX_BBM_NOTIFY_RTC_FLAG : 0); + } else if (message_id == IMX_BBM_BUTTON_NOTIFY) { + struct scmi_msg_imx_bbm_button_notify *button_notify; + + ret = ph->xops->xfer_get_init(ph, message_id, + sizeof(*button_notify), 0, &t); + if (ret) + return ret; + + button_notify = t->tx.buf; + button_notify->flags = cpu_to_le32(enable ? 1 : 0); + } else { + return -EINVAL; + } + + ret = ph->xops->do_xfer(ph, t); + + ph->xops->xfer_put(ph, t); + return ret; +} + +static enum scmi_imx_bbm_protocol_cmd evt_2_cmd[] = { + IMX_BBM_RTC_NOTIFY, + IMX_BBM_BUTTON_NOTIFY +}; + +static int scmi_imx_bbm_set_notify_enabled(const struct scmi_protocol_handle *ph, + u8 evt_id, u32 src_id, bool enable) +{ + int ret, cmd_id; + + if (evt_id >= ARRAY_SIZE(evt_2_cmd)) + return -EINVAL; + + cmd_id = evt_2_cmd[evt_id]; + ret = scmi_imx_bbm_notify(ph, src_id, cmd_id, enable); + if (ret) + pr_debug("FAIL_ENABLED - evt[%X] dom[%d] - ret:%d\n", + evt_id, src_id, ret); + + return ret; +} + +static void *scmi_imx_bbm_fill_custom_report(const struct scmi_protocol_handle *ph, + u8 evt_id, ktime_t timestamp, + const void *payld, size_t payld_sz, + void *report, u32 *src_id) +{ + const struct scmi_imx_bbm_notify_payld *p = payld; + struct scmi_imx_bbm_notif_report *r = report; + + if (sizeof(*p) != payld_sz) + return NULL; + + if (evt_id == SCMI_EVENT_IMX_BBM_RTC) { + r->is_rtc = true; + r->is_button = false; + r->timestamp = timestamp; + r->rtc_id = le32_get_bits(p->flags, SCMI_IMX_BBM_EVENT_RTC_MASK); + r->rtc_evt = le32_get_bits(p->flags, SCMI_IMX_BBM_NOTIFY_RTC_FLAG); + dev_dbg(ph->dev, "RTC: %d evt: %x\n", r->rtc_id, r->rtc_evt); + *src_id = r->rtc_evt; + } else if (evt_id == SCMI_EVENT_IMX_BBM_BUTTON) { + r->is_rtc = false; + r->is_button = true; + r->timestamp = timestamp; + dev_dbg(ph->dev, "BBM Button\n"); + *src_id = 0; + } else { + WARN_ON_ONCE(1); + return NULL; + } + + return r; +} + +static const struct scmi_event scmi_imx_bbm_events[] = { + { + .id = SCMI_EVENT_IMX_BBM_RTC, + .max_payld_sz = sizeof(struct scmi_imx_bbm_notify_payld), + .max_report_sz = sizeof(struct scmi_imx_bbm_notif_report), + }, + { + .id = SCMI_EVENT_IMX_BBM_BUTTON, + .max_payld_sz = sizeof(struct scmi_imx_bbm_notify_payld), + .max_report_sz = sizeof(struct scmi_imx_bbm_notif_report), + }, +}; + +static const struct scmi_event_ops scmi_imx_bbm_event_ops = { + .set_notify_enabled = scmi_imx_bbm_set_notify_enabled, + .fill_custom_report = scmi_imx_bbm_fill_custom_report, +}; + +static const struct scmi_protocol_events scmi_imx_bbm_protocol_events = { + .queue_sz = SCMI_PROTO_QUEUE_SZ, + .ops = &scmi_imx_bbm_event_ops, + .evts = scmi_imx_bbm_events, + .num_events = ARRAY_SIZE(scmi_imx_bbm_events), + .num_sources = 1, +}; + +static int scmi_imx_bbm_rtc_time_set(const struct scmi_protocol_handle *ph, + u32 rtc_id, u64 sec) +{ + struct scmi_imx_bbm_info *pi = ph->get_priv(ph); + struct scmi_imx_bbm_set_time *cfg; + struct scmi_xfer *t; + int ret; + + if (rtc_id >= pi->nr_rtc) + return -EINVAL; + + ret = ph->xops->xfer_get_init(ph, IMX_BBM_RTC_TIME_SET, sizeof(*cfg), 0, &t); + if (ret) + return ret; + + cfg = t->tx.buf; + cfg->id = cpu_to_le32(rtc_id); + cfg->flags = 0; + cfg->value_low = cpu_to_le32(lower_32_bits(sec)); + cfg->value_high = cpu_to_le32(upper_32_bits(sec)); + + ret = ph->xops->do_xfer(ph, t); + + ph->xops->xfer_put(ph, t); + + return ret; +} + +static int scmi_imx_bbm_rtc_time_get(const struct scmi_protocol_handle *ph, + u32 rtc_id, u64 *value) +{ + struct scmi_imx_bbm_info *pi = ph->get_priv(ph); + struct scmi_imx_bbm_get_time *cfg; + struct scmi_xfer *t; + int ret; + + if (rtc_id >= pi->nr_rtc) + return -EINVAL; + + ret = ph->xops->xfer_get_init(ph, IMX_BBM_RTC_TIME_GET, sizeof(*cfg), + sizeof(u64), &t); + if (ret) + return ret; + + cfg = t->tx.buf; + cfg->id = cpu_to_le32(rtc_id); + cfg->flags = 0; + + ret = ph->xops->do_xfer(ph, t); + if (!ret) + *value = get_unaligned_le64(t->rx.buf); + + ph->xops->xfer_put(ph, t); + + return ret; +} + +static int scmi_imx_bbm_rtc_alarm_set(const struct scmi_protocol_handle *ph, + u32 rtc_id, bool enable, u64 sec) +{ + struct scmi_imx_bbm_info *pi = ph->get_priv(ph); + struct scmi_imx_bbm_alarm_time *cfg; + struct scmi_xfer *t; + int ret; + + if (rtc_id >= pi->nr_rtc) + return -EINVAL; + + ret = ph->xops->xfer_get_init(ph, IMX_BBM_RTC_ALARM_SET, sizeof(*cfg), 0, &t); + if (ret) + return ret; + + cfg = t->tx.buf; + cfg->id = cpu_to_le32(rtc_id); + cfg->flags = enable ? SCMI_IMX_BBM_RTC_ALARM_ENABLE_FLAG : 0; + cfg->value_low = cpu_to_le32(lower_32_bits(sec)); + cfg->value_high = cpu_to_le32(upper_32_bits(sec)); + + ret = ph->xops->do_xfer(ph, t); + + ph->xops->xfer_put(ph, t); + + return ret; +} + +static int scmi_imx_bbm_button_get(const struct scmi_protocol_handle *ph, u32 *state) +{ + struct scmi_xfer *t; + int ret; + + ret = ph->xops->xfer_get_init(ph, IMX_BBM_BUTTON_GET, 0, sizeof(u32), &t); + if (ret) + return ret; + + ret = ph->xops->do_xfer(ph, t); + if (!ret) + *state = get_unaligned_le32(t->rx.buf); + + ph->xops->xfer_put(ph, t); + + return ret; +} + +static const struct scmi_imx_bbm_proto_ops scmi_imx_bbm_proto_ops = { + .rtc_time_get = scmi_imx_bbm_rtc_time_get, + .rtc_time_set = scmi_imx_bbm_rtc_time_set, + .rtc_alarm_set = scmi_imx_bbm_rtc_alarm_set, + .button_get = scmi_imx_bbm_button_get, +}; + +static int scmi_imx_bbm_protocol_init(const struct scmi_protocol_handle *ph) +{ + u32 version; + int ret; + struct scmi_imx_bbm_info *binfo; + + ret = ph->xops->version_get(ph, &version); + if (ret) + return ret; + + dev_info(ph->dev, "NXP SM BBM Version %d.%d\n", + PROTOCOL_REV_MAJOR(version), PROTOCOL_REV_MINOR(version)); + + binfo = devm_kzalloc(ph->dev, sizeof(*binfo), GFP_KERNEL); + if (!binfo) + return -ENOMEM; + + ret = scmi_imx_bbm_attributes_get(ph, binfo); + if (ret) + return ret; + + return ph->set_priv(ph, binfo, version); +} + +static const struct scmi_protocol scmi_imx_bbm = { + .id = SCMI_PROTOCOL_IMX_BBM, + .owner = THIS_MODULE, + .instance_init = &scmi_imx_bbm_protocol_init, + .ops = &scmi_imx_bbm_proto_ops, + .events = &scmi_imx_bbm_protocol_events, + .supported_version = SCMI_PROTOCOL_SUPPORTED_VERSION, + .vendor_id = "NXP", + .sub_vendor_id = "IMX", +}; +module_scmi_protocol(scmi_imx_bbm); diff --git a/include/linux/scmi_imx_protocol.h b/include/linux/scmi_imx_protocol.h new file mode 100644 index 000000000000..2df2ea0f1809 --- /dev/null +++ b/include/linux/scmi_imx_protocol.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * SCMI Message Protocol driver NXP extension header + * + * Copyright 2024 NXP. + */ + +#ifndef _LINUX_SCMI_NXP_PROTOCOL_H +#define _LINUX_SCMI_NXP_PROTOCOL_H + +#include +#include +#include +#include + +enum scmi_nxp_protocol { + SCMI_PROTOCOL_IMX_BBM = 0x81, +}; + +struct scmi_imx_bbm_proto_ops { + int (*rtc_time_set)(const struct scmi_protocol_handle *ph, u32 id, + uint64_t sec); + int (*rtc_time_get)(const struct scmi_protocol_handle *ph, u32 id, + u64 *val); + int (*rtc_alarm_set)(const struct scmi_protocol_handle *ph, u32 id, + bool enable, u64 sec); + int (*button_get)(const struct scmi_protocol_handle *ph, u32 *state); +}; + +enum scmi_nxp_notification_events { + SCMI_EVENT_IMX_BBM_RTC = 0x0, + SCMI_EVENT_IMX_BBM_BUTTON = 0x1, +}; + +struct scmi_imx_bbm_notif_report { + bool is_rtc; + bool is_button; + ktime_t timestamp; + unsigned int rtc_id; + unsigned int rtc_evt; +}; +#endif -- 2.37.1