From patchwork Mon Apr 15 08:50:49 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Peng Fan (OSS)" X-Patchwork-Id: 1923638 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.a=rsa-sha256 header.s=selector2-NXP1-onmicrosoft-com header.b=EP/al6OQ; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2604:1380:45d1:ec00::1; helo=ny.mirrors.kernel.org; envelope-from=linux-gpio+bounces-5491-incoming=patchwork.ozlabs.org@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from ny.mirrors.kernel.org (ny.mirrors.kernel.org [IPv6:2604:1380:45d1:ec00::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4VJ10l0JzZz1yZ2 for ; Mon, 15 Apr 2024 18:43:35 +1000 (AEST) Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ny.mirrors.kernel.org (Postfix) with ESMTPS id E51D11C203A9 for ; Mon, 15 Apr 2024 08:43:32 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 833C13FB9B; Mon, 15 Apr 2024 08:42:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.b="EP/al6OQ" X-Original-To: linux-gpio@vger.kernel.org Received: from EUR02-AM0-obe.outbound.protection.outlook.com (mail-am0eur02on2069.outbound.protection.outlook.com [40.107.247.69]) (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 5460D3A8F9; Mon, 15 Apr 2024 08:42:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.247.69 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713170579; cv=fail; b=EEbMI7YMLXvzSAKfKzp5ElcSVy0DvVbcMwBXDF6tC6928Xe9yhKMgh5TycVAHBhNQJR8tY6jftkceAk/mcVxSynVEh+LAlMyH/aJuKRrZShPsdEUcTFwuiTAzcb3UJvCPXwlGb2BSvVyf4ev/itHME/2taHlutDyFvDvPrHBUOQ= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713170579; c=relaxed/simple; bh=RhCldLpWFoBisg6JxF8FQ42efMI/x7hxyuGNT8KbSHI=; h=From:Date:Subject:Content-Type:Message-Id:References:In-Reply-To: To:Cc:MIME-Version; b=TwEllkVMXmkx292T/g3icFifvuqRuSvtKyURcSQhPyQsjiK9BsqW0FdFUGyIzNKrR/ZqoyLFn3NXc25UCm2z4VGiJ0ohsz396Uo18WM3S51z5IaypdIw6PTuyDEJOFsPba0PT1T+OvZRsNF8LJx/d9tQW0WmExEToFPvnSaiMXw= 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=EP/al6OQ; arc=fail smtp.client-ip=40.107.247.69 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 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=TNk7i+YE7bKCjOzWQM6/OFAeBS9JyrKZ4pbVhkM4DIqwxNbEXnaPBqG9a8pSxR/cfdt0FzIipquEmYXbmkaS+IgfKLRV+r/okZgAmC7vwnmPb8mESz59TpyFLffUZLc5oqPMevzSmsj9XUA6X0XB/pRVP+QWe68EWaX3D797FMqJHO9U5smHZZqwssZgdxBfuNg+NwMVRqznV36UApymPBRndhZQ5/2SjO2UOgnXsMexwY1qSUJrC8F6TGwrn+/BqcE7dUfU8uuIf6zTtEGi6+byMk7Zm8nwhrwteCIRyLQLIPCjAOp/AfOv149O43yr869Zer0qrNhCfHt1duXODA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; 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=y32EPUygoezOrwpSdGDK5Cezq+RoDLA6Ci/XuseYkwM=; b=eKj13Kwd94Qhfr58iaVlkeiEQPISRtLXhjRee5cbqsBEafmKf09CQVbtlYL3J9GUY1jvWqjiQNtXr7UpRIL5IT9jc7DuvRP+BHEZYFHxGJhd8ey2LT4H0ChB9i/KMW1kwLHyiWZwE78h/rUdttpvgrTHL8sLzTD164x3s5c4xGDA+wDbUzJ17rvZ8F8pBlqwQEhbDq/FcZoolDet1NLqHGuIMaIuNKk8Nr+5ImXa0ano88s8kJ1u6HAh8HaTMReHlWF2wQ4N1epmjomrodwAXVSNtmM3VdxIi7d8U5IBdbHCQZ9kotRJsJczt4UbI5jPrM1g8xSJ1pQeEcJnm8mdpg== 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=y32EPUygoezOrwpSdGDK5Cezq+RoDLA6Ci/XuseYkwM=; b=EP/al6OQL8mP4oJZFsDGz1o0lgiGMtvKeusDxti31LVKQ89MirqywjwAQrHNPZtTbknJyQFFNcoCB50qC33m62JfKUS4vQvyo2VQ6vVLK1mtwrPRA6NxQPkBxO7RWo0sOOHgcWzjvubjRy6155BWoiVp74eXDQwInuL+v1bG9tQ= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=oss.nxp.com; Received: from DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) by AM9PR04MB7506.eurprd04.prod.outlook.com (2603:10a6:20b:281::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7452.50; Mon, 15 Apr 2024 08:42:54 +0000 Received: from DU0PR04MB9417.eurprd04.prod.outlook.com ([fe80::d30b:44e7:e78e:662d]) by DU0PR04MB9417.eurprd04.prod.outlook.com ([fe80::d30b:44e7:e78e:662d%4]) with mapi id 15.20.7452.041; Mon, 15 Apr 2024 08:42:54 +0000 From: "Peng Fan (OSS)" Date: Mon, 15 Apr 2024 16:50:49 +0800 Subject: [PATCH v10 1/4] firmware: arm_scmi: introduce helper get_max_msg_size Message-Id: <20240415-pinctrl-scmi-v10-1-59c6e7a586ee@nxp.com> References: <20240415-pinctrl-scmi-v10-0-59c6e7a586ee@nxp.com> In-Reply-To: <20240415-pinctrl-scmi-v10-0-59c6e7a586ee@nxp.com> To: Sudeep Holla , Cristian Marussi , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Linus Walleij , Dan Carpenter Cc: Dhruva Gole , Andy Shevchenko , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-gpio@vger.kernel.org, Peng Fan X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1713171061; l=2695; i=peng.fan@nxp.com; s=20230812; h=from:subject:message-id; bh=fC1f9Mz+AZ7lC+TNU94i2E/beyKrQPUiXgoBP0YzZ74=; b=q5GWIty/C0+zNWWjGsIah4qVnecIS9Ayc3PFWTIfTzo9dwsUsAQQo+LAgNGgyPjWdAe4NVBgZ lPug89jxOmvBEdjNO9GSpJkQX/WE9Vg3PT2WG31FWj4ndQrDSUsPE/8 X-Developer-Key: i=peng.fan@nxp.com; a=ed25519; pk=I4sJg7atIT1g63H7bb5lDRGR2gJW14RKDD0wFL8TT1g= X-ClientProxiedBy: SG2PR02CA0011.apcprd02.prod.outlook.com (2603:1096:3:17::23) To DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) Precedence: bulk X-Mailing-List: linux-gpio@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: DU0PR04MB9417:EE_|AM9PR04MB7506:EE_ X-MS-Office365-Filtering-Correlation-Id: 455b1994-0774-4da6-138f-08dc5d280ab0 X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DU0PR04MB9417.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230031)(1800799015)(7416005)(52116005)(376005)(366007)(38350700005);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?q?6GQLPpJQfYLY2/Qp9gXQrA4rQ5B7?= =?utf-8?q?JzPYupiObyhlpAJVXg6UJ/L1Xvr5Vzfm0Ax0LzsPtBQaDzjgqZ1c7rkmlmL2qhkYH?= =?utf-8?q?QvPoxGwN8gzhqIn4sLoQpDM9Tu+V/FkBV7VCblBwStCN2QZBG6SW3FbnQWWwnS/iG?= =?utf-8?q?Ctr5SI2Wo6215e2hvLwh+SSgOjtI45rOKYBnTs3kdcMsJKqGgCvpZn4cpi8Gkc/Fi?= =?utf-8?q?l2oKpLkeR0kgsTjZ9z3wFYQBbhOyXnF045qrixj4mHqV0tzt+HpQhFSj2mysx/wrR?= =?utf-8?q?AheI2TzGk9TXZsYwwbVDyigoXyHogGQU63JK3mvgmwbbQjMveiCv7O4AEhUq6wa2T?= =?utf-8?q?+D6FYmWfcVWwauzDlXvIN8rN5qxiapg4YQALoFjVTXqRWyr3ixcvxBUyN/NoqP5n8?= =?utf-8?q?tK31T3kprONmjqXJXAKrdvi6qXbN2ejV0+miJwRtAOOk5dUmCAd7ka50z3YIXK0PZ?= =?utf-8?q?uaygjrKml/U1eutkuUAag2Jw4IxXWZqCvQRqsaH3lehXx79ZdhZYvgrCW65mec5nc?= =?utf-8?q?Ugeebq/WegKiwj5Fhl8a+94jG1qDQZBpegG0vwk85SxhRWiCv8TxKuaLLtfHS3/y3?= =?utf-8?q?+/fizNgin+FKf6oreD3seLXBvfzw6kf+PE9a93MJ7KTKfNfwZvdcrfJWQRCCuWJ1O?= =?utf-8?q?8i248cts/HtBXdJIL24+NGgfglB5/zEztE/ELZ1LfxVLU2kQKX+e6YkYxAEIQPCUJ?= =?utf-8?q?52ZYGejtx23E2kiDUF+y1Wkgf7Hspz9mGWAZRF1xcgNJg6HAXKXQzQt4QnB0GKfD5?= =?utf-8?q?lwPfbG7hDloWd7aQpYYyod/CbdJqR+CzN8pQsOsAo3xh8V9AtYDKFBISl+HWD2ZjY?= =?utf-8?q?iJT8FPisrO1NACbFPJb2DmrzZuh9Y8qXnX/9tGl/r6/++6r7T93go2tUuEWYOfvZb?= =?utf-8?q?dEbjVwoQsWc7mX8PPoiyhapvFmrp42E3XR4r712gylrzeLQ13fxLs8BO3yEKViqjB?= =?utf-8?q?lMkeGl3mazJhW5v2jmAvhHEHYkxvNZVCZACKnSficcGtupoITqtzMCQC7sPbQpoNE?= =?utf-8?q?Ed5c+mWEyASaJRWJc9fDifS7+SDCknLolwhljhXEpaD/Hicsv8Bo4rWVQwV5wwQi5?= =?utf-8?q?8bkj4TY+6VwgYoy4/P9EK5YFe4BXQP9Uxx9Rx4EdO8qodfYKUnKsB0iTmxClOt4ut?= =?utf-8?q?BKmH9yFqz0eJkkYjk3wy8clfzDgsELAw0ZbuwoKhuawfNC0ly3loZmBcKbfVuHmU7?= =?utf-8?q?HSNsHtlAkuMU/RSYpNwjAImwTFK7mV6zCpk8W8lfc9m6c9EmkycHYNQyIUQo1jh2m?= =?utf-8?q?k3nAOIsJO7oNGIF59UpAI8uznuy1p13r2CEJv9vORv8DNOT0aO54uZBP5QoFsQZ8j?= =?utf-8?q?a2I0XTL5jCIPG1j55Nz/aMe6hNrNXW+VxqZMvqklmmgbV54Ms0wvbHkZuFU6YDlMS?= =?utf-8?q?si49HoDRTi0BUaXfRUIwS/j0hGrbeLEYQUGBxrrV+6j27rCgOMRkRY7ndN8Lk3+y7?= =?utf-8?q?0LfEjkpAyImCnzp1DHEdFOpnff0ADUyvwYBdqv/VfUchQuantMS+SrezFqf7Xfiqz?= =?utf-8?q?/D26flwyhDKK?= X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 455b1994-0774-4da6-138f-08dc5d280ab0 X-MS-Exchange-CrossTenant-AuthSource: DU0PR04MB9417.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Apr 2024 08:42:54.0925 (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: HGEMAkTUl2yEsZDfjGx72mVJlCiixm2WKAPwbx3uiZOC/A1MOwI2cw0J1rPzTMbmRsFKofGdrZw/cdJ/9laWqg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM9PR04MB7506 From: Peng Fan When Agent sending data to SCMI server, the Agent driver could check the size to avoid protocol buffer overflow. So introduce the helper get_max_msg_size. Reviewed-by: Cristian Marussi Reviewed-by: Dhruva Gole Signed-off-by: Peng Fan --- drivers/firmware/arm_scmi/driver.c | 15 +++++++++++++++ drivers/firmware/arm_scmi/protocols.h | 2 ++ 2 files changed, 17 insertions(+) diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index 36e3eb50a8d4..a1e0e8fa4bb7 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -1537,6 +1537,20 @@ static int scmi_common_extended_name_get(const struct scmi_protocol_handle *ph, return ret; } +/** + * scmi_common_get_max_msg_size - Get maximum message size + * @ph: A protocol handle reference. + * + * Return: Maximum message size for the current protocol. + */ +static int scmi_common_get_max_msg_size(const struct scmi_protocol_handle *ph) +{ + const struct scmi_protocol_instance *pi = ph_to_pi(ph); + struct scmi_info *info = handle_to_scmi_info(pi->handle); + + return info->desc->max_msg_size; +} + /** * struct scmi_iterator - Iterator descriptor * @msg: A reference to the message TX buffer; filled by @prepare_message with @@ -1848,6 +1862,7 @@ static int scmi_protocol_msg_check(const struct scmi_protocol_handle *ph, static const struct scmi_proto_helpers_ops helpers_ops = { .extended_name_get = scmi_common_extended_name_get, + .get_max_msg_size = scmi_common_get_max_msg_size, .iter_response_init = scmi_iterator_init, .iter_response_run = scmi_iterator_run, .protocol_msg_check = scmi_protocol_msg_check, diff --git a/drivers/firmware/arm_scmi/protocols.h b/drivers/firmware/arm_scmi/protocols.h index 317d3fb32676..3e91536a77a3 100644 --- a/drivers/firmware/arm_scmi/protocols.h +++ b/drivers/firmware/arm_scmi/protocols.h @@ -258,6 +258,7 @@ struct scmi_fc_info { * @fastchannel_init: A common helper used to initialize FC descriptors by * gathering FC descriptions from the SCMI platform server. * @fastchannel_db_ring: A common helper to ring a FC doorbell. + * @get_max_msg_size: A common helper to get the maximum message size. */ struct scmi_proto_helpers_ops { int (*extended_name_get)(const struct scmi_protocol_handle *ph, @@ -277,6 +278,7 @@ struct scmi_proto_helpers_ops { struct scmi_fc_db_info **p_db, u32 *rate_limit); void (*fastchannel_db_ring)(struct scmi_fc_db_info *db); + int (*get_max_msg_size)(const struct scmi_protocol_handle *ph); }; /** From patchwork Mon Apr 15 08:50:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Peng Fan (OSS)" X-Patchwork-Id: 1923639 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.a=rsa-sha256 header.s=selector2-NXP1-onmicrosoft-com header.b=TAOZOWk3; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2604:1380:45e3:2400::1; helo=sv.mirrors.kernel.org; envelope-from=linux-gpio+bounces-5492-incoming=patchwork.ozlabs.org@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from sv.mirrors.kernel.org (sv.mirrors.kernel.org [IPv6:2604:1380:45e3:2400::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4VJ11B4pwHz1yZ2 for ; Mon, 15 Apr 2024 18:43:58 +1000 (AEST) Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sv.mirrors.kernel.org (Postfix) with ESMTPS id 15106281988 for ; Mon, 15 Apr 2024 08:43:57 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 266E03BBD7; Mon, 15 Apr 2024 08:43:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.b="TAOZOWk3" X-Original-To: linux-gpio@vger.kernel.org Received: from EUR02-AM0-obe.outbound.protection.outlook.com (mail-am0eur02on2081.outbound.protection.outlook.com [40.107.247.81]) (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 D8EB243AD4; Mon, 15 Apr 2024 08:43:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.247.81 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713170583; cv=fail; b=uCx0lvov+kke9XQjTCzCs4fp2dPw8E2Qj9bXbDEeneYc60DwydXrh8xcRvWU+9q3vYLC6sywVxTkZIxTPcEuiHzVfPupnaz+r2E3Hr2rCdKA6o0ExV7awu8qbd4kW4PUNNaXY0W7l9/pgMD2g7jprPVEsqxSULlP+eMFFXPDfO0= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713170583; c=relaxed/simple; bh=1zPbtoCNbOl7ALpohlegcy1tsXoTHb4w9RVFmhetJ9Y=; h=From:Date:Subject:Content-Type:Message-Id:References:In-Reply-To: To:Cc:MIME-Version; b=CrTH6jO34V+WN/M83p8HzPfdxl+zHLgvfAM/KS4flo7DWMxQp70YgqQ4Ai2w0z+nlVXNrgrGXKTwsjmbNigLPDId8PAmhnI9f2ITBSeK9C4tNK3eerhOknI6qJR5CbidZeSMGtQgbPR+ZZvG0QTVhda+RZJqxiqjJUoqyjVIKFY= 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=TAOZOWk3; arc=fail smtp.client-ip=40.107.247.81 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 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=N7W0fLDeDkVoG5AYGCpt/VSPEqsvHx4WB5dEOqAq6YemoysDoGmS1KH4cmh7fAC/5za3NtfVzaek8GGJC0kHQfqRwEJJTH5yXfo89xfvHg/A2gMdG8qlMkWZ3Zvb7M9/8iMkIJGiSdzn9LVyBanXC++xOOzkKPNJjSXyaI6lEsB4J6XXEEH721qaqprSVj1U289VJK+4mtvE/tkkgROixf+W6gfdeKuhC2udPRoyvGPXvOXUV+6bAZLQP6O2UA2yX6jnnNpbVQZACFJHhDHG9Wy+Zh2ujJJ96LAAGOTKZHcekrh6AxCj1YRzV3ob7imt2gSpPhN57sMjaJE1e39XMw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; 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=SEk/KyCGYEIR0nJYohvLG9OMHTkixQzPWb3gCR+cLZs=; b=jNbVLkiyXvpp8ZHdlE/Ywp8VMDEyGmQnA3fD3GfdBK1O4NQq0OLrd/VQJ2kpA2R6QwqcSPrHkDytueE381xf9dVYtd4TyzqfVpHu/gYaVyNcV2ElLB6BVu/FvaNQcNgq0MTo5r1cu39MC+lf5L+/xcxf83NAODNr+qJIoSfcki1JSachlTruzsRXNQrpEzpY3czYfZUKFJ/e95nRuFDxF+ojXfxauFXJfOEs9BG+u7fp1nJ4dsvagmjHpSHErvTGIC9bjojh9kXq5+92FaF/Q7qodC44VyaUMz7R1pbPHIh1zDB5fCxczMIP6Plf2im2QkAU82kCAx4VUE63FHpJjA== 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=SEk/KyCGYEIR0nJYohvLG9OMHTkixQzPWb3gCR+cLZs=; b=TAOZOWk3AD/GtxQWpX/g2THBdzCnjAfNOjVpv3NyWDXX33NMpfs2nHYPXudzk7GGCWQaYjdnCljdDHCiz2Bd9ZG4tYREYnLJPLBAXIDVlugoR7iIOgEb0k1v0LzEZcIDrkWVdmMmu18aKS6ZqfkrW3ToOY72Oyzglvm2AjhiXGo= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=oss.nxp.com; Received: from DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) by AM9PR04MB7506.eurprd04.prod.outlook.com (2603:10a6:20b:281::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7452.50; Mon, 15 Apr 2024 08:42:58 +0000 Received: from DU0PR04MB9417.eurprd04.prod.outlook.com ([fe80::d30b:44e7:e78e:662d]) by DU0PR04MB9417.eurprd04.prod.outlook.com ([fe80::d30b:44e7:e78e:662d%4]) with mapi id 15.20.7452.041; Mon, 15 Apr 2024 08:42:58 +0000 From: "Peng Fan (OSS)" Date: Mon, 15 Apr 2024 16:50:50 +0800 Subject: [PATCH v10 2/4] dt-bindings: firmware: arm,scmi: support pinctrl protocol Message-Id: <20240415-pinctrl-scmi-v10-2-59c6e7a586ee@nxp.com> References: <20240415-pinctrl-scmi-v10-0-59c6e7a586ee@nxp.com> In-Reply-To: <20240415-pinctrl-scmi-v10-0-59c6e7a586ee@nxp.com> To: Sudeep Holla , Cristian Marussi , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Linus Walleij , Dan Carpenter Cc: Dhruva Gole , Andy Shevchenko , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-gpio@vger.kernel.org, Peng Fan X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1713171061; l=2404; i=peng.fan@nxp.com; s=20230812; h=from:subject:message-id; bh=VDmWstcwBhpk6d9BmY1+Svq0j29w4hdHyHMqV4zPF24=; b=FgQIu1M+b/SSNUdgszCS0d9jFG/pgLRZo05l9WUzDohdJlFc2ssIZFgi+IChVuqj3L2f6fACV TdpBkQ7XcB+DXklVpNsi/myah3KnmYgzvUj9uRFta1mxad1McfTHnYx X-Developer-Key: i=peng.fan@nxp.com; a=ed25519; pk=I4sJg7atIT1g63H7bb5lDRGR2gJW14RKDD0wFL8TT1g= X-ClientProxiedBy: SG2PR02CA0011.apcprd02.prod.outlook.com (2603:1096:3:17::23) To DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) Precedence: bulk X-Mailing-List: linux-gpio@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: DU0PR04MB9417:EE_|AM9PR04MB7506:EE_ X-MS-Office365-Filtering-Correlation-Id: 9f0336a2-e374-49be-9eb8-08dc5d280d53 X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DU0PR04MB9417.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230031)(1800799015)(7416005)(52116005)(376005)(366007)(38350700005);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?q?qDq3BOwNABbadF9I9Oic+ArjenGn?= =?utf-8?q?g7xK55KzGiMVsMg6FSORjLvCKZaAJk7VBdZA4OwUbZ35vVyB0ntDASkiD8djc4yPL?= =?utf-8?q?Z+HQqgHeaY5Mk3Czcx8+f5pXNpXbJxlHTi/RIos9O6DWfEA2zJoqUkop1SpZlO7d3?= =?utf-8?q?9peKJ1d9EkDuXCTQlEtTN96T0mr5C2Uv/240CkrONqEKYQv7+uvDIkkSOKC83FJGP?= =?utf-8?q?BpbTw64W1cwXyK550lMC5HJNcY1abfGHZvB+s/4/TI77YeSy6FFcwprXDZ9IMhs5f?= =?utf-8?q?9taAZ77peCNhCSleH8DmCP8YNNW0de2jbkqZwNXRGkFNpAnP5hsj3H5DDth9sPfX4?= =?utf-8?q?HH3ZCaqmM/NbPdXCHk26bMm+K3DKtEXm+o8mAcqFM5swep73U5bMIZL3zkzDo8Hzx?= =?utf-8?q?AAJDZ/ccjT+kn+SbW/Kn14N5C6fvHlR5jDC3/EOV17hAo29Rzkj3DWS5AJ8V3LOGy?= =?utf-8?q?5J5C+UgH03tuM1v32dRzS44zzGjL5EXnhScCsm6jy5PiWk9ejQ102YFAsb0EIaqs0?= =?utf-8?q?oa4Mt3EwqcVq7SSab6Nf7Y7SMFpuEbkRsG1/DmV6obDtFZQeajOPVVNrI6WeaOgzO?= =?utf-8?q?bt0SHTi2CNcPSdHUYMLTzpwvo9gwIGMMj9scnw+K66UEPc1fjASh92aqNsaAIIIKf?= =?utf-8?q?chcRlsLTnUhHRjLmpMvSUWc17WUORef0gk6wYDdPorZajh5a/UqV7vsBl3cFjQQCx?= =?utf-8?q?mRmLZqkhRnsmFLCav7zsIwA2F6OlJ8aYM0McAgZCbsNcHjSzAakaCbU9otUWPhZL+?= =?utf-8?q?BRzfZF5zwskxLmWlb2ipbbTeuexbmcHlkelC2ThPgy9KPz1JTsFrq1QePOTzYb7xB?= =?utf-8?q?hm6ajS4ryMcSm/ygOAU51fKtJrbL8iDSrk+EXeRCx1eZskFRoYWC3tyYa+ByLOnvj?= =?utf-8?q?RgIrObqSCO0d198OyGXc/ZfM8mbOlWdHzFSQ6qAc17+S7Au7MjK6Fb1d2Sjq/pOvO?= =?utf-8?q?2D424Z73q62OnXMKFueVrN3n43Hjg8f23G36y47roamWTNxTtNz5h8zjY8e2TZ8Xr?= =?utf-8?q?99ztvO0GaAzaO7YTB60TXiBg1kDBGrERvOUgSqSm+mTShhEYxV/rXfToCp5Y8T0EH?= =?utf-8?q?VWpyy/aWvbaLphv75Y8fqRKyQW8Zvju66AjUJLgUdEKPDksFL1p4waK9KZA0QUVjd?= =?utf-8?q?1juAk8z6el/8f1ZZe4+1j/oVMc1NjKiB4rmtgrlWMqoyisE8yMvope20Ak8OTaKTN?= =?utf-8?q?EW4N0nqxHZI49qQnMwgJpr2ThUJ3dbxB7t1NzKAfY5lElzRFdaMVnPQ+FlhkgDPwy?= =?utf-8?q?F/nk3IlDQkBajMVPoNro8RpxbcfRig6X3ozE2XhaCHb4XgrtBk/WWitggvhcfoF8O?= =?utf-8?q?4FJBFcS6Z2eg3fy6on1tL5KMwQjEohtPnoQLhlpT+9948J3yfSHTjZWKLTpaRP3+Y?= =?utf-8?q?8qcbGVLRdZDCYX5BY5pjbUmwxi+p/uqHgSeVgdZZHANFCPVICFb6byjOclX5wT/kL?= =?utf-8?q?0Ex4W7I444v71lXzxMpBurVRda4WPsujiE9GjEbezUiHT7xsuN2XkaBLIUX/aogkf?= =?utf-8?q?WwXTG1AjabpV?= X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 9f0336a2-e374-49be-9eb8-08dc5d280d53 X-MS-Exchange-CrossTenant-AuthSource: DU0PR04MB9417.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Apr 2024 08:42:58.4645 (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: jVqB7+J8AkENFPqSV6fnutvtFm8BRzb5aPK1vWxKF8kzOh7IuqoEIm9FXLkFJw6QQdJeukt83iytvGSQgvY/cQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM9PR04MB7506 From: Peng Fan Add SCMI v3.2 pinctrl protocol bindings and example. Reviewed-by: Rob Herring Reviewed-by: Linus Walleij Reviewed-by: Dhruva Gole Signed-off-by: Peng Fan --- .../devicetree/bindings/firmware/arm,scmi.yaml | 50 ++++++++++++++++++++++ 1 file changed, 50 insertions(+) diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml index 93fb7d05f849..7de2c29606e5 100644 --- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml +++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml @@ -247,6 +247,37 @@ properties: reg: const: 0x18 + protocol@19: + type: object + allOf: + - $ref: '#/$defs/protocol-node' + - $ref: /schemas/pinctrl/pinctrl.yaml + + unevaluatedProperties: false + + properties: + reg: + const: 0x19 + + patternProperties: + '-pins$': + type: object + allOf: + - $ref: /schemas/pinctrl/pincfg-node.yaml# + - $ref: /schemas/pinctrl/pinmux-node.yaml# + unevaluatedProperties: false + + description: + A pin multiplexing sub-node describes how to configure a + set of pins in some desired function. + A single sub-node may define several pin configurations. + This sub-node is using the default pinctrl bindings to configure + pin multiplexing and using SCMI protocol to apply a specified + configuration. + + required: + - reg + additionalProperties: false $defs: @@ -401,6 +432,25 @@ examples: scmi_powercap: protocol@18 { reg = <0x18>; }; + + scmi_pinctrl: protocol@19 { + reg = <0x19>; + + i2c2-pins { + groups = "g_i2c2_a", "g_i2c2_b"; + function = "f_i2c2"; + }; + + mdio-pins { + groups = "g_avb_mdio"; + drive-strength = <24>; + }; + + keys_pins: keys-pins { + pins = "gpio_5_17", "gpio_5_20", "gpio_5_22", "gpio_2_1"; + bias-pull-up; + }; + }; }; }; From patchwork Mon Apr 15 08:50:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Peng Fan (OSS)" X-Patchwork-Id: 1923641 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.a=rsa-sha256 header.s=selector2-NXP1-onmicrosoft-com header.b=IiGjUHKq; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=147.75.199.223; helo=ny.mirrors.kernel.org; envelope-from=linux-gpio+bounces-5493-incoming=patchwork.ozlabs.org@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from ny.mirrors.kernel.org (ny.mirrors.kernel.org [147.75.199.223]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4VJ11V5BBSz1yZ2 for ; Mon, 15 Apr 2024 18:44:14 +1000 (AEST) Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ny.mirrors.kernel.org (Postfix) with ESMTPS id 0E1E21C20E34 for ; Mon, 15 Apr 2024 08:44:12 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 24A573B2A2; Mon, 15 Apr 2024 08:43:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.b="IiGjUHKq" X-Original-To: linux-gpio@vger.kernel.org Received: from EUR02-AM0-obe.outbound.protection.outlook.com (mail-am0eur02on2083.outbound.protection.outlook.com [40.107.247.83]) (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 16F124594C; Mon, 15 Apr 2024 08:43:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.247.83 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713170589; cv=fail; b=jytqNEO07OAqeQKxFqlQvcTRo6l57riIV5bRKo1adr+VFZDwIASocNeYoT1xzvgFJzGHCK95/4126XGXX7sbBcbYbCL576Z1GIycN5kxYbKzsglP8N5h7aeFO5QUQTMqbmopURpNiumsSMGC3rlMMQfcqJXhXu8q4R1Rr2ZvcpU= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713170589; c=relaxed/simple; bh=YlwrH+eQS9F7MOeVCzzuGup799W4C6ZI78AJteK4rKw=; h=From:Date:Subject:Content-Type:Message-Id:References:In-Reply-To: To:Cc:MIME-Version; b=icuUTbvBBz+uzW5TEKhrmYY3haR2QM3QoP5hz3ZLEiZ7RtD9AiOl367abjGWTHsC98SFci3rSlIyBR869kVtfXov5wH+PRohruQ9dsECC1c7yyQt8eDZ/XeI0bKxuZvfe0f7TYU643iaByxkcNnAQK/j8OcUtWJtj44b5KZhSEY= 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=IiGjUHKq; arc=fail smtp.client-ip=40.107.247.83 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 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=EV/DL/ao59sfhsZoRXTgeo999nv6myfnxxG50fdYaQM0Y6lDU57kLtyhXHey2v18Ffk5IPSdxn2dG7HTfRDfrvYSIrhLj8YwkyNl7KCXje0QgE485PT68J4sd+EbPIKpdDUtu3s2xaYEjeXfiJuuE0uF1Y6Sq1fKBDQe6qiV/wQwJAH1vE8m8otl80liA0IVfmTXw8STRBy+uWqj0VPy7QADOkU0tppSh0KNziHfOq9LDUsgQSvdR3Qo6/qNjk//CeR7IL/J1pJcrYUJpvBoNGLHIci+4t20jAK1tQR83mrInRkHdlX8oXhl9TFNx9Co5kk/r9OiE72htuZR+US/bA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; 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=E6cSrPxrT85E+2sEoi3YYX8D8I3wXNefinoNnLyn7Qk=; b=H7FiLwmLlofxGzmaNH61wVlasISl3OHWE1PhxteZd+iYbZ0m0Nfb3MWqM3tm58PfpFGeByPSDtSTWy6VvLBHMc2go+SeEvMo0oNA5XpJu5pB5KR20EAXLt5bh0/H+JQ56TWFWgjsEOclDxblD1y5SRl4YPMZVTuEHhAM/poRmWOpMJEfvGBbQBuGsrZE2EIIRpfcydNu28f58L3lGrj1uezO3gRkRUi6mvTLInaSKZtSsTTiwf58nwr5UW4Xm722srHvbhZrNzyDeBX+XK10VZIlzRYYJt5qblcQo+zGkGbt3PtbkHK6iT1Fj2rym4JP0BvhleHz314FAYeRsZK9hQ== 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=E6cSrPxrT85E+2sEoi3YYX8D8I3wXNefinoNnLyn7Qk=; b=IiGjUHKq7J9gTybxvRgXAHw4LFPhSIFEnl2FuJG+v1yYkC1an0dY3RCl4W+sR4yTMtv6gL6nFMoBSOwMLTd4+x9wqNy0BaGCLKpp9CP8Em1QKneQ+fha5H8dlltOdxr0ij6m5XInp44LiG7rf9WHiq3UVOoGB8VyjMVvNAHB6kM= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=oss.nxp.com; Received: from DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) by AM9PR04MB7506.eurprd04.prod.outlook.com (2603:10a6:20b:281::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7452.50; Mon, 15 Apr 2024 08:43:03 +0000 Received: from DU0PR04MB9417.eurprd04.prod.outlook.com ([fe80::d30b:44e7:e78e:662d]) by DU0PR04MB9417.eurprd04.prod.outlook.com ([fe80::d30b:44e7:e78e:662d%4]) with mapi id 15.20.7452.041; Mon, 15 Apr 2024 08:43:03 +0000 From: "Peng Fan (OSS)" Date: Mon, 15 Apr 2024 16:50:51 +0800 Subject: [PATCH v10 3/4] firmware: arm_scmi: Add SCMI v3.2 pincontrol protocol basic support Message-Id: <20240415-pinctrl-scmi-v10-3-59c6e7a586ee@nxp.com> References: <20240415-pinctrl-scmi-v10-0-59c6e7a586ee@nxp.com> In-Reply-To: <20240415-pinctrl-scmi-v10-0-59c6e7a586ee@nxp.com> To: Sudeep Holla , Cristian Marussi , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Linus Walleij , Dan Carpenter Cc: Dhruva Gole , Andy Shevchenko , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-gpio@vger.kernel.org, Peng Fan , Oleksii Moisieiev X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1713171061; l=30412; i=peng.fan@nxp.com; s=20230812; h=from:subject:message-id; bh=YuGhTXxfU5NKLJFYyDuKKzadNTpWoQRGvlpy5+5N94w=; b=TNPc9o2KdyuCkpzCarv6eq4oOd3vmc+2+3W663RhtIaallqmaUIWM5cbgCRRWvnRGachWTN1c H4qmp5nKMrOAfACd9b98MlLLsTifNBHXqfBAY1PqfZBAUpJGARLyqdI X-Developer-Key: i=peng.fan@nxp.com; a=ed25519; pk=I4sJg7atIT1g63H7bb5lDRGR2gJW14RKDD0wFL8TT1g= X-ClientProxiedBy: SG2PR02CA0011.apcprd02.prod.outlook.com (2603:1096:3:17::23) To DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) Precedence: bulk X-Mailing-List: linux-gpio@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: DU0PR04MB9417:EE_|AM9PR04MB7506:EE_ X-MS-Office365-Filtering-Correlation-Id: a604b71b-4c0a-4205-fa57-08dc5d281012 X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DU0PR04MB9417.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230031)(1800799015)(7416005)(52116005)(376005)(366007)(38350700005);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?q?xJiqziTG103Xgk6bRALN3/2O/XEN?= =?utf-8?q?eA9R9RM9hi1k9qTZZmR0O5bscCXxT0wHKx5vEfPR9s1e8ffN9CEeimcT/3tRE5KXl?= =?utf-8?q?ijGAtVAPbNmlTUltqSRGHDN+i+A2u6bJnRAmwMkVQNAWjK2xsZeKBzJM2kF3wTuuQ?= =?utf-8?q?U0R2rlqMP7x2ijTezYM3QyE5zNF4/sTyw8bsCuikBv4ql/ySohk+Uwhd5grNg6rlC?= =?utf-8?q?BubIxbE0t/Y/3J5fo51W7QbH1pPwwXg4qITBGizVDnh2yGi4ybCU5t1LdKRnMaGqG?= =?utf-8?q?u/pZa91jcirZLXuzY3EURrynly1ush9RkLR0HBB2WV4hOF12Gl2+ZEThxSWrrwXXL?= =?utf-8?q?bM4JzMlvKA4BQBzmiCgn0N0DuTiGJn3WaHAwZlYtfJ7hilTkvLMN5IXGUWLJZk55M?= =?utf-8?q?xXyGwhSuzVn7OlzldQ6AXXGw07pSrHgm0NvvjwUINskDK/I4pWTn0vzi53jKCgryx?= =?utf-8?q?OF/UR+cCtu+oFjbdZiYGvkPdowzjfqu4O4vS85ChJx0aWhuVDzsni8tsL765YQQSx?= =?utf-8?q?ymDIK8y5ysPQZhmUT5iILFVxLmOLT7rsLNMnE9junDng2Jl16x2fljbe65pqqQlOT?= =?utf-8?q?1DQWGLXJtbLczAgKLNxwnPQ2dgljwNf+0HYQAfnTVZcAKCPDIcCBNQLmV8o1wyAD6?= =?utf-8?q?KKzyv6ci3khhKGJ3h6HBU1IhceOj8IcQmPAiyEQzyqb7rzcE0IhutWGpSN2mom006?= =?utf-8?q?FU6W7q56bsg3qa4vjPliSYhbA9ZYVbgFkv9+HOrrpnWFrBfaAUM71j5nAIEjIt4Y8?= =?utf-8?q?hGXV/8Qu7h70aE0QAEwu0ynuXGJuwlGboY7r7Qt35S5dec2WninEfAb21Snql23Y2?= =?utf-8?q?6I7EpnIpvGZ5K1LT/lx91Dcq3yHCybdUcA04n0OekbLi5iSzUsvgvz3AFau/bgmYR?= =?utf-8?q?R4tRbXNgCEkumq8AumyQcezQto2wMGx3LoR7GdZeF8U7zVY6twewi2BgQD3e/kpSd?= =?utf-8?q?e+qYo6QxQlAaGdt0wtOFESRMO4xkkhbcW6hvZoLYdqZxPRDF0kWrvYpehUd7w7nsG?= =?utf-8?q?8sQwifOjEW5BJOsOUVpeeJoB8IpBVzK3qXMNdSCLUV5+oq8XfCiPsM//XgYUBbD5l?= =?utf-8?q?cOoY9a/zRa6wVuRjwumJeW41EtAqe34utsZ+QkInxRU4P7+GL/iDRek/ZafkR1tSW?= =?utf-8?q?AA7YZ+F4oxDDCaz4jpsul9nEj9BjATFD5ogKqeWFD/l52V4MMds5tuHw9tjfNDIOV?= =?utf-8?q?XjOkNMSHxIeGN/pXIOgp115TS9tY4oV2zRhBtFV2LnaolBGr+uu39B4fggM0RLbjK?= =?utf-8?q?iHunu8lqLcKSOL6fu+WsN3TK8+TsDjP1Z3Uffy6+ilJNza3JrnZxed2fcpYWaoI+P?= =?utf-8?q?nystjhI8q0+kOXAmBjKDm/EOnIbocMQuIDiKWp0mE/d4YfUNT4CrFVt6wz5BfTZGx?= =?utf-8?q?4s54+7Sw1T/trRg4dxp4khM9zQoBprucxVrUcuadBUagLNlJaMdaKSPHGO1ST58M6?= =?utf-8?q?9vmTtQzE7zMLAdZTXzijAG1ArfDhwZyoPFP+HAlLEFPvueJRrbybcazjFh2GlJMGP?= =?utf-8?q?9ZlaYHiNzNQP?= X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: a604b71b-4c0a-4205-fa57-08dc5d281012 X-MS-Exchange-CrossTenant-AuthSource: DU0PR04MB9417.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Apr 2024 08:43:03.1000 (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: aztwk+x9yYv7Yql49ODhIW1vI2Lc75nQnwQzisUNaOqvA8s+276rsydVdeL9kYyaY0hn/dhKj8VI6r+Sm+4hPQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM9PR04MB7506 From: Peng Fan Add basic implementation of the SCMI v3.2 pincontrol protocol. Co-developed-by: Oleksii Moisieiev Signed-off-by: Oleksii Moisieiev Co-developed-by: Cristian Marussi Signed-off-by: Cristian Marussi Signed-off-by: Peng Fan --- drivers/firmware/arm_scmi/Makefile | 3 +- drivers/firmware/arm_scmi/driver.c | 2 + drivers/firmware/arm_scmi/pinctrl.c | 916 ++++++++++++++++++++++++++++++++++ drivers/firmware/arm_scmi/protocols.h | 1 + include/linux/scmi_protocol.h | 84 ++++ 5 files changed, 1005 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/arm_scmi/Makefile b/drivers/firmware/arm_scmi/Makefile index a7bc4796519c..fd59f58ce8a2 100644 --- a/drivers/firmware/arm_scmi/Makefile +++ b/drivers/firmware/arm_scmi/Makefile @@ -10,7 +10,8 @@ scmi-transport-$(CONFIG_ARM_SCMI_TRANSPORT_SMC) += smc.o scmi-transport-$(CONFIG_ARM_SCMI_HAVE_MSG) += msg.o scmi-transport-$(CONFIG_ARM_SCMI_TRANSPORT_VIRTIO) += virtio.o scmi-transport-$(CONFIG_ARM_SCMI_TRANSPORT_OPTEE) += optee.o -scmi-protocols-y = base.o clock.o perf.o power.o reset.o sensors.o system.o voltage.o powercap.o +scmi-protocols-y := base.o clock.o perf.o power.o reset.o sensors.o system.o voltage.o powercap.o +scmi-protocols-y += pinctrl.o scmi-module-objs := $(scmi-driver-y) $(scmi-protocols-y) $(scmi-transport-y) obj-$(CONFIG_ARM_SCMI_PROTOCOL) += scmi-core.o diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index a1e0e8fa4bb7..08ecb918e684 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -3209,6 +3209,7 @@ static int __init scmi_driver_init(void) scmi_voltage_register(); scmi_system_register(); scmi_powercap_register(); + scmi_pinctrl_register(); return platform_driver_register(&scmi_driver); } @@ -3226,6 +3227,7 @@ static void __exit scmi_driver_exit(void) scmi_voltage_unregister(); scmi_system_unregister(); scmi_powercap_unregister(); + scmi_pinctrl_unregister(); scmi_transports_exit(); diff --git a/drivers/firmware/arm_scmi/pinctrl.c b/drivers/firmware/arm_scmi/pinctrl.c new file mode 100644 index 000000000000..a2a7f880d6a3 --- /dev/null +++ b/drivers/firmware/arm_scmi/pinctrl.c @@ -0,0 +1,916 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * System Control and Management Interface (SCMI) Pinctrl Protocol + * + * Copyright (C) 2024 EPAM + * Copyright 2024 NXP + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "common.h" +#include "protocols.h" + +/* Updated only after ALL the mandatory features for that version are merged */ +#define SCMI_PROTOCOL_SUPPORTED_VERSION 0x10000 + +#define GET_GROUPS_NR(x) le32_get_bits((x), GENMASK(31, 16)) +#define GET_PINS_NR(x) le32_get_bits((x), GENMASK(15, 0)) +#define GET_FUNCTIONS_NR(x) le32_get_bits((x), GENMASK(15, 0)) + +#define EXT_NAME_FLAG(x) le32_get_bits((x), BIT(31)) +#define NUM_ELEMS(x) le32_get_bits((x), GENMASK(15, 0)) + +#define REMAINING(x) le32_get_bits((x), GENMASK(31, 16)) +#define RETURNED(x) le32_get_bits((x), GENMASK(11, 0)) + +#define CONFIG_FLAG_MASK GENMASK(19, 18) +#define SELECTOR_MASK GENMASK(17, 16) +#define SKIP_CONFIGS_MASK GENMASK(15, 8) +#define CONFIG_TYPE_MASK GENMASK(7, 0) + +enum scmi_pinctrl_protocol_cmd { + PINCTRL_ATTRIBUTES = 0x3, + PINCTRL_LIST_ASSOCIATIONS = 0x4, + PINCTRL_SETTINGS_GET = 0x5, + PINCTRL_SETTINGS_CONFIGURE = 0x6, + PINCTRL_REQUEST = 0x7, + PINCTRL_RELEASE = 0x8, + PINCTRL_NAME_GET = 0x9, + PINCTRL_SET_PERMISSIONS = 0xa, +}; + +struct scmi_msg_settings_conf { + __le32 identifier; + __le32 function_id; + __le32 attributes; + __le32 configs[]; +}; + +struct scmi_msg_settings_get { + __le32 identifier; + __le32 attributes; +}; + +struct scmi_resp_settings_get { + __le32 function_selected; + __le32 num_configs; + __le32 configs[]; +}; + +struct scmi_msg_pinctrl_protocol_attributes { + __le32 attributes_low; + __le32 attributes_high; +}; + +struct scmi_msg_pinctrl_attributes { + __le32 identifier; + __le32 flags; +}; + +struct scmi_resp_pinctrl_attributes { + __le32 attributes; + u8 name[SCMI_SHORT_NAME_MAX_SIZE]; +}; + +struct scmi_msg_pinctrl_list_assoc { + __le32 identifier; + __le32 flags; + __le32 index; +}; + +struct scmi_resp_pinctrl_list_assoc { + __le32 flags; + __le16 array[]; +}; + +struct scmi_msg_request { + __le32 identifier; + __le32 flags; +}; + +struct scmi_group_info { + char name[SCMI_MAX_STR_SIZE]; + bool present; + u32 *group_pins; + u32 nr_pins; +}; + +struct scmi_function_info { + char name[SCMI_MAX_STR_SIZE]; + bool present; + u32 *groups; + u32 nr_groups; +}; + +struct scmi_pin_info { + char name[SCMI_MAX_STR_SIZE]; + bool present; +}; + +struct scmi_pinctrl_info { + u32 version; + int nr_groups; + int nr_functions; + int nr_pins; + struct scmi_group_info *groups; + struct scmi_function_info *functions; + struct scmi_pin_info *pins; +}; + +static int scmi_pinctrl_attributes_get(const struct scmi_protocol_handle *ph, + struct scmi_pinctrl_info *pi) +{ + int ret; + struct scmi_xfer *t; + struct scmi_msg_pinctrl_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_functions = GET_FUNCTIONS_NR(attr->attributes_high); + pi->nr_groups = GET_GROUPS_NR(attr->attributes_low); + pi->nr_pins = GET_PINS_NR(attr->attributes_low); + if (pi->nr_pins == 0) { + dev_warn(ph->dev, "returned zero pins\n"); + ret = -EINVAL; + } + } + + ph->xops->xfer_put(ph, t); + return ret; +} + +static int scmi_pinctrl_count_get(const struct scmi_protocol_handle *ph, + enum scmi_pinctrl_selector_type type) +{ + struct scmi_pinctrl_info *pi = ph->get_priv(ph); + + switch (type) { + case PIN_TYPE: + return pi->nr_pins; + case GROUP_TYPE: + return pi->nr_groups; + case FUNCTION_TYPE: + return pi->nr_functions; + default: + return -EINVAL; + } +} + +static int scmi_pinctrl_validate_id(const struct scmi_protocol_handle *ph, + u32 selector, + enum scmi_pinctrl_selector_type type) +{ + int value; + + value = scmi_pinctrl_count_get(ph, type); + if (value < 0) + return value; + + if (selector >= value || value == 0) + return -EINVAL; + + return 0; +} + +static int scmi_pinctrl_attributes(const struct scmi_protocol_handle *ph, + enum scmi_pinctrl_selector_type type, + u32 selector, char *name, + u32 *n_elems) +{ + int ret; + struct scmi_xfer *t; + struct scmi_msg_pinctrl_attributes *tx; + struct scmi_resp_pinctrl_attributes *rx; + bool ext_name_flag; + + if (!name) + return -EINVAL; + + ret = scmi_pinctrl_validate_id(ph, selector, type); + if (ret) + return ret; + + ret = ph->xops->xfer_get_init(ph, PINCTRL_ATTRIBUTES, sizeof(*tx), + sizeof(*rx), &t); + if (ret) + return ret; + + tx = t->tx.buf; + rx = t->rx.buf; + tx->identifier = cpu_to_le32(selector); + tx->flags = cpu_to_le32(type); + + ret = ph->xops->do_xfer(ph, t); + if (!ret) { + if (n_elems) + *n_elems = NUM_ELEMS(rx->attributes); + + strscpy(name, rx->name, SCMI_SHORT_NAME_MAX_SIZE); + + ext_name_flag = !!EXT_NAME_FLAG(rx->attributes); + } + + ph->xops->xfer_put(ph, t); + + if (ret) + return ret; + /* + * If supported overwrite short name with the extended one; + * on error just carry on and use already provided short name. + */ + if (ext_name_flag) + ret = ph->hops->extended_name_get(ph, PINCTRL_NAME_GET, + selector, (u32 *)&type, name, + SCMI_MAX_STR_SIZE); + return ret; +} + +struct scmi_pinctrl_ipriv { + u32 selector; + enum scmi_pinctrl_selector_type type; + u32 *array; +}; + +static void iter_pinctrl_assoc_prepare_message(void *message, + u32 desc_index, + const void *priv) +{ + struct scmi_msg_pinctrl_list_assoc *msg = message; + const struct scmi_pinctrl_ipriv *p = priv; + + msg->identifier = cpu_to_le32(p->selector); + msg->flags = cpu_to_le32(p->type); + msg->index = cpu_to_le32(desc_index); +} + +static int iter_pinctrl_assoc_update_state(struct scmi_iterator_state *st, + const void *response, void *priv) +{ + const struct scmi_resp_pinctrl_list_assoc *r = response; + + st->num_returned = RETURNED(r->flags); + st->num_remaining = REMAINING(r->flags); + + return 0; +} + +static int +iter_pinctrl_assoc_process_response(const struct scmi_protocol_handle *ph, + const void *response, + struct scmi_iterator_state *st, void *priv) +{ + const struct scmi_resp_pinctrl_list_assoc *r = response; + struct scmi_pinctrl_ipriv *p = priv; + + p->array[st->desc_index + st->loop_idx] = + le16_to_cpu(r->array[st->loop_idx]); + + return 0; +} + +static int scmi_pinctrl_list_associations(const struct scmi_protocol_handle *ph, + u32 selector, + enum scmi_pinctrl_selector_type type, + u16 size, u32 *array) +{ + int ret; + void *iter; + struct scmi_iterator_ops ops = { + .prepare_message = iter_pinctrl_assoc_prepare_message, + .update_state = iter_pinctrl_assoc_update_state, + .process_response = iter_pinctrl_assoc_process_response, + }; + struct scmi_pinctrl_ipriv ipriv = { + .selector = selector, + .type = type, + .array = array, + }; + + if (!array || !size || type == PIN_TYPE) + return -EINVAL; + + ret = scmi_pinctrl_validate_id(ph, selector, type); + if (ret) + return ret; + + iter = ph->hops->iter_response_init(ph, &ops, size, + PINCTRL_LIST_ASSOCIATIONS, + sizeof(struct scmi_msg_pinctrl_list_assoc), + &ipriv); + if (IS_ERR(iter)) + return PTR_ERR(iter); + + return ph->hops->iter_response_run(iter); +} + +struct scmi_settings_get_ipriv { + u32 selector; + enum scmi_pinctrl_selector_type type; + bool get_all; + unsigned int *nr_configs; + enum scmi_pinctrl_conf_type *config_types; + u32 *config_values; +}; + +static void +iter_pinctrl_settings_get_prepare_message(void *message, u32 desc_index, + const void *priv) +{ + struct scmi_msg_settings_get *msg = message; + const struct scmi_settings_get_ipriv *p = priv; + u32 attributes; + + attributes = FIELD_PREP(SELECTOR_MASK, p->type); + + if (p->get_all) { + attributes |= FIELD_PREP(CONFIG_FLAG_MASK, 1) | + FIELD_PREP(SKIP_CONFIGS_MASK, desc_index); + } else { + attributes |= FIELD_PREP(CONFIG_TYPE_MASK, p->config_types[0]); + } + + msg->attributes = cpu_to_le32(attributes); + msg->identifier = cpu_to_le32(p->selector); +} + +static int +iter_pinctrl_settings_get_update_state(struct scmi_iterator_state *st, + const void *response, void *priv) +{ + const struct scmi_resp_settings_get *r = response; + struct scmi_settings_get_ipriv *p = priv; + + if (p->get_all) { + st->num_returned = le32_get_bits(r->num_configs, GENMASK(7, 0)); + st->num_remaining = le32_get_bits(r->num_configs, GENMASK(31, 24)); + } else { + st->num_returned = 1; + st->num_remaining = 0; + } + + return 0; +} + +static int +iter_pinctrl_settings_get_process_response(const struct scmi_protocol_handle *ph, + const void *response, + struct scmi_iterator_state *st, + void *priv) +{ + const struct scmi_resp_settings_get *r = response; + struct scmi_settings_get_ipriv *p = priv; + u32 type = le32_get_bits(r->configs[st->loop_idx * 2], GENMASK(7, 0)); + u32 val = le32_to_cpu(r->configs[st->loop_idx * 2 + 1]); + + if (p->get_all) { + p->config_types[st->desc_index + st->loop_idx] = type; + } else { + if (p->config_types[0] != type) + return -EINVAL; + } + + p->config_values[st->desc_index + st->loop_idx] = val; + ++*p->nr_configs; + + return 0; +} + +static int +scmi_pinctrl_settings_get(const struct scmi_protocol_handle *ph, u32 selector, + enum scmi_pinctrl_selector_type type, + unsigned int *nr_configs, + enum scmi_pinctrl_conf_type *config_types, + u32 *config_values) +{ + int ret; + void *iter; + unsigned int max_configs = *nr_configs; + struct scmi_iterator_ops ops = { + .prepare_message = iter_pinctrl_settings_get_prepare_message, + .update_state = iter_pinctrl_settings_get_update_state, + .process_response = iter_pinctrl_settings_get_process_response, + }; + struct scmi_settings_get_ipriv ipriv = { + .selector = selector, + .type = type, + .get_all = (max_configs > 1), + .nr_configs = nr_configs, + .config_types = config_types, + .config_values = config_values, + }; + + if (!config_types || !config_values || type == FUNCTION_TYPE) + return -EINVAL; + + ret = scmi_pinctrl_validate_id(ph, selector, type); + if (ret) + return ret; + + /* Prepare to count returned configs */ + *nr_configs = 0; + iter = ph->hops->iter_response_init(ph, &ops, max_configs, + PINCTRL_SETTINGS_GET, + sizeof(struct scmi_msg_settings_get), + &ipriv); + if (IS_ERR(iter)) + return PTR_ERR(iter); + + return ph->hops->iter_response_run(iter); +} + +static int scmi_pinctrl_settings_get_one(const struct scmi_protocol_handle *ph, + u32 selector, + enum scmi_pinctrl_selector_type type, + enum scmi_pinctrl_conf_type config_type, + u32 *config_value) +{ + unsigned int nr_configs = 1; + + return scmi_pinctrl_settings_get(ph, selector, type, &nr_configs, + &config_type, config_value); +} + +static int scmi_pinctrl_settings_get_all(const struct scmi_protocol_handle *ph, + u32 selector, + enum scmi_pinctrl_selector_type type, + unsigned int *nr_configs, + enum scmi_pinctrl_conf_type *config_types, + u32 *config_values) +{ + if (!nr_configs || *nr_configs == 0) + return -EINVAL; + + return scmi_pinctrl_settings_get(ph, selector, type, nr_configs, + config_types, config_values); +} + +static int +scmi_pinctrl_settings_conf(const struct scmi_protocol_handle *ph, + u32 selector, + enum scmi_pinctrl_selector_type type, + u32 nr_configs, + enum scmi_pinctrl_conf_type *config_type, + u32 *config_value) +{ + struct scmi_xfer *t; + struct scmi_msg_settings_conf *tx; + u32 attributes; + int ret, i; + u32 configs_in_chunk, conf_num = 0; + u32 chunk; + int max_msg_size = ph->hops->get_max_msg_size(ph); + + if (!config_type || !config_value || type == FUNCTION_TYPE) + return -EINVAL; + + ret = scmi_pinctrl_validate_id(ph, selector, type); + if (ret) + return ret; + + configs_in_chunk = (max_msg_size - sizeof(*tx)) / (sizeof(__le32) * 2); + while (conf_num < nr_configs) { + chunk = (nr_configs - conf_num > configs_in_chunk) ? + configs_in_chunk : nr_configs - conf_num; + + ret = ph->xops->xfer_get_init(ph, PINCTRL_SETTINGS_CONFIGURE, + sizeof(*tx) + + chunk * 2 * sizeof(__le32), 0, &t); + if (ret) + break; + + tx = t->tx.buf; + tx->identifier = cpu_to_le32(selector); + tx->function_id = cpu_to_le32(0xFFFFFFFF); + attributes = FIELD_PREP(GENMASK(1, 0), type) | + FIELD_PREP(GENMASK(9, 2), chunk); + tx->attributes = cpu_to_le32(attributes); + + for (i = 0; i < chunk; i++) { + tx->configs[i * 2] = + cpu_to_le32(config_type[conf_num + i]); + tx->configs[i * 2 + 1] = + cpu_to_le32(config_value[conf_num + i]); + } + + ret = ph->xops->do_xfer(ph, t); + + ph->xops->xfer_put(ph, t); + + if (ret) + break; + + conf_num += chunk; + } + + return ret; +} + +static int scmi_pinctrl_function_select(const struct scmi_protocol_handle *ph, + u32 group, + enum scmi_pinctrl_selector_type type, + u32 function_id) +{ + int ret; + struct scmi_xfer *t; + struct scmi_msg_settings_conf *tx; + u32 attributes; + + ret = scmi_pinctrl_validate_id(ph, group, type); + if (ret) + return ret; + + ret = ph->xops->xfer_get_init(ph, PINCTRL_SETTINGS_CONFIGURE, + sizeof(*tx), 0, &t); + if (ret) + return ret; + + tx = t->tx.buf; + tx->identifier = cpu_to_le32(group); + tx->function_id = cpu_to_le32(function_id); + attributes = FIELD_PREP(GENMASK(1, 0), type) | BIT(10); + tx->attributes = cpu_to_le32(attributes); + + ret = ph->xops->do_xfer(ph, t); + ph->xops->xfer_put(ph, t); + + return ret; +} + +static int scmi_pinctrl_request_free(const struct scmi_protocol_handle *ph, + u32 identifier, + enum scmi_pinctrl_selector_type type, + enum scmi_pinctrl_protocol_cmd cmd) +{ + int ret; + struct scmi_xfer *t; + struct scmi_msg_request *tx; + + if (type == FUNCTION_TYPE) + return -EINVAL; + + if (cmd != PINCTRL_REQUEST && cmd != PINCTRL_RELEASE) + return -EINVAL; + + ret = scmi_pinctrl_validate_id(ph, identifier, type); + if (ret) + return ret; + + ret = ph->xops->xfer_get_init(ph, cmd, sizeof(*tx), 0, &t); + if (ret) + return ret; + + tx = t->tx.buf; + tx->identifier = cpu_to_le32(identifier); + tx->flags = cpu_to_le32(type); + + ret = ph->xops->do_xfer(ph, t); + ph->xops->xfer_put(ph, t); + + return ret; +} + +static int scmi_pinctrl_pin_request(const struct scmi_protocol_handle *ph, + u32 pin) +{ + return scmi_pinctrl_request_free(ph, pin, PIN_TYPE, PINCTRL_REQUEST); +} + +static int scmi_pinctrl_pin_free(const struct scmi_protocol_handle *ph, u32 pin) +{ + return scmi_pinctrl_request_free(ph, pin, PIN_TYPE, PINCTRL_RELEASE); +} + +static int scmi_pinctrl_get_group_info(const struct scmi_protocol_handle *ph, + u32 selector, + struct scmi_group_info *group) +{ + int ret; + + ret = scmi_pinctrl_attributes(ph, GROUP_TYPE, selector, group->name, + &group->nr_pins); + if (ret) + return ret; + + if (!group->nr_pins) { + dev_err(ph->dev, "Group %d has 0 elements", selector); + return -ENODATA; + } + + group->group_pins = kmalloc_array(group->nr_pins, + sizeof(*group->group_pins), + GFP_KERNEL); + if (!group->group_pins) + return -ENOMEM; + + ret = scmi_pinctrl_list_associations(ph, selector, GROUP_TYPE, + group->nr_pins, group->group_pins); + if (ret) { + kfree(group->group_pins); + return ret; + } + + group->present = true; + return 0; +} + +static int scmi_pinctrl_get_group_name(const struct scmi_protocol_handle *ph, + u32 selector, const char **name) +{ + struct scmi_pinctrl_info *pi = ph->get_priv(ph); + + if (!name) + return -EINVAL; + + if (selector >= pi->nr_groups || pi->nr_groups == 0) + return -EINVAL; + + if (!pi->groups[selector].present) { + int ret; + + ret = scmi_pinctrl_get_group_info(ph, selector, + &pi->groups[selector]); + if (ret) + return ret; + } + + *name = pi->groups[selector].name; + + return 0; +} + +static int scmi_pinctrl_group_pins_get(const struct scmi_protocol_handle *ph, + u32 selector, const u32 **pins, + u32 *nr_pins) +{ + struct scmi_pinctrl_info *pi = ph->get_priv(ph); + + if (!pins || !nr_pins) + return -EINVAL; + + if (selector >= pi->nr_groups || pi->nr_groups == 0) + return -EINVAL; + + if (!pi->groups[selector].present) { + int ret; + + ret = scmi_pinctrl_get_group_info(ph, selector, + &pi->groups[selector]); + if (ret) + return ret; + } + + *pins = pi->groups[selector].group_pins; + *nr_pins = pi->groups[selector].nr_pins; + + return 0; +} + +static int scmi_pinctrl_get_function_info(const struct scmi_protocol_handle *ph, + u32 selector, + struct scmi_function_info *func) +{ + int ret; + + ret = scmi_pinctrl_attributes(ph, FUNCTION_TYPE, selector, func->name, + &func->nr_groups); + if (ret) + return ret; + + if (!func->nr_groups) { + dev_err(ph->dev, "Function %d has 0 elements", selector); + return -ENODATA; + } + + func->groups = kmalloc_array(func->nr_groups, sizeof(*func->groups), + GFP_KERNEL); + if (!func->groups) + return -ENOMEM; + + ret = scmi_pinctrl_list_associations(ph, selector, FUNCTION_TYPE, + func->nr_groups, func->groups); + if (ret) { + kfree(func->groups); + return ret; + } + + func->present = true; + return 0; +} + +static int scmi_pinctrl_get_function_name(const struct scmi_protocol_handle *ph, + u32 selector, const char **name) +{ + struct scmi_pinctrl_info *pi = ph->get_priv(ph); + + if (!name) + return -EINVAL; + + if (selector >= pi->nr_functions || pi->nr_functions == 0) + return -EINVAL; + + if (!pi->functions[selector].present) { + int ret; + + ret = scmi_pinctrl_get_function_info(ph, selector, + &pi->functions[selector]); + if (ret) + return ret; + } + + *name = pi->functions[selector].name; + return 0; +} + +static int +scmi_pinctrl_function_groups_get(const struct scmi_protocol_handle *ph, + u32 selector, u32 *nr_groups, + const u32 **groups) +{ + struct scmi_pinctrl_info *pi = ph->get_priv(ph); + + if (!groups || !nr_groups) + return -EINVAL; + + if (selector >= pi->nr_functions || pi->nr_functions == 0) + return -EINVAL; + + if (!pi->functions[selector].present) { + int ret; + + ret = scmi_pinctrl_get_function_info(ph, selector, + &pi->functions[selector]); + if (ret) + return ret; + } + + *groups = pi->functions[selector].groups; + *nr_groups = pi->functions[selector].nr_groups; + + return 0; +} + +static int scmi_pinctrl_mux_set(const struct scmi_protocol_handle *ph, + u32 selector, u32 group) +{ + return scmi_pinctrl_function_select(ph, group, GROUP_TYPE, selector); +} + +static int scmi_pinctrl_get_pin_info(const struct scmi_protocol_handle *ph, + u32 selector, struct scmi_pin_info *pin) +{ + int ret; + + if (!pin) + return -EINVAL; + + ret = scmi_pinctrl_attributes(ph, PIN_TYPE, selector, pin->name, NULL); + if (ret) + return ret; + + pin->present = true; + return 0; +} + +static int scmi_pinctrl_get_pin_name(const struct scmi_protocol_handle *ph, + u32 selector, const char **name) +{ + struct scmi_pinctrl_info *pi = ph->get_priv(ph); + + if (!name) + return -EINVAL; + + if (selector >= pi->nr_pins) + return -EINVAL; + + if (!pi->pins[selector].present) { + int ret; + + ret = scmi_pinctrl_get_pin_info(ph, selector, &pi->pins[selector]); + if (ret) + return ret; + } + + *name = pi->pins[selector].name; + + return 0; +} + +static int scmi_pinctrl_name_get(const struct scmi_protocol_handle *ph, + u32 selector, + enum scmi_pinctrl_selector_type type, + const char **name) +{ + switch (type) { + case PIN_TYPE: + return scmi_pinctrl_get_pin_name(ph, selector, name); + case GROUP_TYPE: + return scmi_pinctrl_get_group_name(ph, selector, name); + case FUNCTION_TYPE: + return scmi_pinctrl_get_function_name(ph, selector, name); + default: + return -EINVAL; + } +} + +static const struct scmi_pinctrl_proto_ops pinctrl_proto_ops = { + .count_get = scmi_pinctrl_count_get, + .name_get = scmi_pinctrl_name_get, + .group_pins_get = scmi_pinctrl_group_pins_get, + .function_groups_get = scmi_pinctrl_function_groups_get, + .mux_set = scmi_pinctrl_mux_set, + .settings_get_one = scmi_pinctrl_settings_get_one, + .settings_get_all = scmi_pinctrl_settings_get_all, + .settings_conf = scmi_pinctrl_settings_conf, + .pin_request = scmi_pinctrl_pin_request, + .pin_free = scmi_pinctrl_pin_free, +}; + +static int scmi_pinctrl_protocol_init(const struct scmi_protocol_handle *ph) +{ + int ret; + u32 version; + struct scmi_pinctrl_info *pinfo; + + ret = ph->xops->version_get(ph, &version); + if (ret) + return ret; + + dev_dbg(ph->dev, "Pinctrl Version %d.%d\n", + PROTOCOL_REV_MAJOR(version), PROTOCOL_REV_MINOR(version)); + + pinfo = devm_kzalloc(ph->dev, sizeof(*pinfo), GFP_KERNEL); + if (!pinfo) + return -ENOMEM; + + ret = scmi_pinctrl_attributes_get(ph, pinfo); + if (ret) + return ret; + + pinfo->pins = devm_kcalloc(ph->dev, pinfo->nr_pins, + sizeof(*pinfo->pins), GFP_KERNEL); + if (!pinfo->pins) + return -ENOMEM; + + pinfo->groups = devm_kcalloc(ph->dev, pinfo->nr_groups, + sizeof(*pinfo->groups), GFP_KERNEL); + if (!pinfo->groups) + return -ENOMEM; + + pinfo->functions = devm_kcalloc(ph->dev, pinfo->nr_functions, + sizeof(*pinfo->functions), GFP_KERNEL); + if (!pinfo->functions) + return -ENOMEM; + + pinfo->version = version; + + return ph->set_priv(ph, pinfo, version); +} + +static int scmi_pinctrl_protocol_deinit(const struct scmi_protocol_handle *ph) +{ + int i; + struct scmi_pinctrl_info *pi = ph->get_priv(ph); + + /* Free groups_pins allocated in scmi_pinctrl_get_group_info */ + for (i = 0; i < pi->nr_groups; i++) { + if (pi->groups[i].present) { + kfree(pi->groups[i].group_pins); + pi->groups[i].present = false; + } + } + + /* Free groups allocated in scmi_pinctrl_get_function_info */ + for (i = 0; i < pi->nr_functions; i++) { + if (pi->functions[i].present) { + kfree(pi->functions[i].groups); + pi->functions[i].present = false; + } + } + + return 0; +} + +static const struct scmi_protocol scmi_pinctrl = { + .id = SCMI_PROTOCOL_PINCTRL, + .owner = THIS_MODULE, + .instance_init = &scmi_pinctrl_protocol_init, + .instance_deinit = &scmi_pinctrl_protocol_deinit, + .ops = &pinctrl_proto_ops, + .supported_version = SCMI_PROTOCOL_SUPPORTED_VERSION, +}; +DEFINE_SCMI_PROTOCOL_REGISTER_UNREGISTER(pinctrl, scmi_pinctrl) diff --git a/drivers/firmware/arm_scmi/protocols.h b/drivers/firmware/arm_scmi/protocols.h index 3e91536a77a3..c02cbfd2bb03 100644 --- a/drivers/firmware/arm_scmi/protocols.h +++ b/drivers/firmware/arm_scmi/protocols.h @@ -355,6 +355,7 @@ void __exit scmi_##name##_unregister(void) \ DECLARE_SCMI_REGISTER_UNREGISTER(base); DECLARE_SCMI_REGISTER_UNREGISTER(clock); DECLARE_SCMI_REGISTER_UNREGISTER(perf); +DECLARE_SCMI_REGISTER_UNREGISTER(pinctrl); DECLARE_SCMI_REGISTER_UNREGISTER(power); DECLARE_SCMI_REGISTER_UNREGISTER(reset); DECLARE_SCMI_REGISTER_UNREGISTER(sensors); diff --git a/include/linux/scmi_protocol.h b/include/linux/scmi_protocol.h index a3addb07e00a..3a9bb5b9a9e8 100644 --- a/include/linux/scmi_protocol.h +++ b/include/linux/scmi_protocol.h @@ -737,6 +737,89 @@ struct scmi_powercap_proto_ops { u32 *power_thresh_high); }; +enum scmi_pinctrl_selector_type { + PIN_TYPE = 0, + GROUP_TYPE, + FUNCTION_TYPE, +}; + +enum scmi_pinctrl_conf_type { + SCMI_PIN_DEFAULT = 0, + SCMI_PIN_BIAS_BUS_HOLD = 1, + SCMI_PIN_BIAS_DISABLE = 2, + SCMI_PIN_BIAS_HIGH_IMPEDANCE = 3, + SCMI_PIN_BIAS_PULL_UP = 4, + SCMI_PIN_BIAS_PULL_DEFAULT = 5, + SCMI_PIN_BIAS_PULL_DOWN = 6, + SCMI_PIN_DRIVE_OPEN_DRAIN = 7, + SCMI_PIN_DRIVE_OPEN_SOURCE = 8, + SCMI_PIN_DRIVE_PUSH_PULL = 9, + SCMI_PIN_DRIVE_STRENGTH = 10, + SCMI_PIN_INPUT_DEBOUNCE = 11, + SCMI_PIN_INPUT_MODE = 12, + SCMI_PIN_PULL_MODE = 13, + SCMI_PIN_INPUT_VALUE = 14, + SCMI_PIN_INPUT_SCHMITT = 15, + SCMI_PIN_LOW_POWER_MODE = 16, + SCMI_PIN_OUTPUT_MODE = 17, + SCMI_PIN_OUTPUT_VALUE = 18, + SCMI_PIN_POWER_SOURCE = 19, + SCMI_PIN_SLEW_RATE = 20, + SCMI_PIN_OEM_START = 192, + SCMI_PIN_OEM_END = 255, +}; + +/** + * struct scmi_pinctrl_proto_ops - represents the various operations provided + * by SCMI Pinctrl Protocol + * + * @count_get: returns count of the registered elements in given type + * @name_get: returns name by index of given type + * @group_pins_get: returns the set of pins, assigned to the specified group + * @function_groups_get: returns the set of groups, assigned to the specified + * function + * @mux_set: set muxing function for groups of pins + * @settings_get_one: returns one configuration parameter for pin or group + * specified by config_type + * @settings_get_all: returns all configuration parameters for pin or group + * @settings_conf: sets the configuration parameter for pin or group + * @pin_request: aquire pin before selecting mux setting + * @pin_free: frees pin, acquired by request_pin call + */ +struct scmi_pinctrl_proto_ops { + int (*count_get)(const struct scmi_protocol_handle *ph, + enum scmi_pinctrl_selector_type type); + int (*name_get)(const struct scmi_protocol_handle *ph, u32 selector, + enum scmi_pinctrl_selector_type type, + const char **name); + int (*group_pins_get)(const struct scmi_protocol_handle *ph, + u32 selector, const unsigned int **pins, + unsigned int *nr_pins); + int (*function_groups_get)(const struct scmi_protocol_handle *ph, + u32 selector, unsigned int *nr_groups, + const unsigned int **groups); + int (*mux_set)(const struct scmi_protocol_handle *ph, u32 selector, + u32 group); + int (*settings_get_one)(const struct scmi_protocol_handle *ph, + u32 selector, + enum scmi_pinctrl_selector_type type, + enum scmi_pinctrl_conf_type config_type, + u32 *config_value); + int (*settings_get_all)(const struct scmi_protocol_handle *ph, + u32 selector, + enum scmi_pinctrl_selector_type type, + unsigned int *nr_configs, + enum scmi_pinctrl_conf_type *config_types, + u32 *config_values); + int (*settings_conf)(const struct scmi_protocol_handle *ph, + u32 selector, enum scmi_pinctrl_selector_type type, + unsigned int nr_configs, + enum scmi_pinctrl_conf_type *config_type, + u32 *config_value); + int (*pin_request)(const struct scmi_protocol_handle *ph, u32 pin); + int (*pin_free)(const struct scmi_protocol_handle *ph, u32 pin); +}; + /** * struct scmi_notify_ops - represents notifications' operations provided by * SCMI core @@ -842,6 +925,7 @@ enum scmi_std_protocol { SCMI_PROTOCOL_RESET = 0x16, SCMI_PROTOCOL_VOLTAGE = 0x17, SCMI_PROTOCOL_POWERCAP = 0x18, + SCMI_PROTOCOL_PINCTRL = 0x19, }; enum scmi_system_events { From patchwork Mon Apr 15 08:50:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Peng Fan (OSS)" X-Patchwork-Id: 1923642 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.a=rsa-sha256 header.s=selector2-NXP1-onmicrosoft-com header.b=iZLFVl7n; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2604:1380:4601:e00::3; helo=am.mirrors.kernel.org; envelope-from=linux-gpio+bounces-5494-incoming=patchwork.ozlabs.org@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from am.mirrors.kernel.org (am.mirrors.kernel.org [IPv6:2604:1380:4601:e00::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4VJ11c4y6Lz1yZ2 for ; Mon, 15 Apr 2024 18:44:20 +1000 (AEST) Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by am.mirrors.kernel.org (Postfix) with ESMTPS id D4AEF1F2557E for ; Mon, 15 Apr 2024 08:44:17 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id B11644879B; Mon, 15 Apr 2024 08:43:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=NXP1.onmicrosoft.com header.i=@NXP1.onmicrosoft.com header.b="iZLFVl7n" X-Original-To: linux-gpio@vger.kernel.org Received: from EUR02-AM0-obe.outbound.protection.outlook.com (mail-am0eur02on2083.outbound.protection.outlook.com [40.107.247.83]) (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 301613BBED; Mon, 15 Apr 2024 08:43:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.247.83 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713170592; cv=fail; b=StBUbSE7zUJpYC8PgWtx6b4wVgz+Q7DhRxIPgVyOD7duQUSoswEWQztDp1xARh0CNty8/tKpWBngcV1IJ02XnwkwkmjPhMb/XquS9CO/jkoSB+C5AEbJzQCxlWQqmjNoTlzOaSTM8qVUS0pbjdqDhFIBBwDKgMAfr6qWPrIJc4k= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713170592; c=relaxed/simple; bh=AvzxO31Yu586w3gH8nWJhGzdFPRo+HRDNDutGR9pavs=; h=From:Date:Subject:Content-Type:Message-Id:References:In-Reply-To: To:Cc:MIME-Version; b=lLYUs8PQNET+UpPnpOBe7RYo7jE4+F4meHKi65yfyJ1pWkeJRRJZx9a2kuXBMc3WIeiEYpkUCh64fBTmO+/d5Pf5uxDJOKYjzCcuRVUVAY6wDHRMlfQur5tFYlk3dK7xTwOmsInsiG7k8x2vgFczyqv2MjLP31N370TgnU6HACs= 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=iZLFVl7n; arc=fail smtp.client-ip=40.107.247.83 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 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=EDa+XzHAaZgpMqsBTwOFRImsJN2U90sKQaW4b91N5gSEvGOsVLHICvzY3dwaNDWsLVl91zyuf1KRhHEiY81hGDhbQTLZcLMCwYHZT8cYlIE05o7DfTEVPIbf6T9MlTQZxnnZgWAD1X0vsL3cJ6TetoagFVQ3MST1lsljKDmilYSRWza2BqbUQ9IamD2zs2smn/1we39ofSEX5KCBbigfYrP0OjCinCRf7N8SAeB2CEHIZsmeMv0DJF0a8eqPbgZeLAIaMukMoe5UTQhSq6wglgSKFz1nseBAtEk16HXWN3QaK7xrbQ2tSCc9KxteFqSYoSViQViM+j32EdB7pxvFSg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; 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=vxmDk/2iSI+UsJu28/ANZ/il3ws1Kfhx5WW+Jf0xHt4=; b=Zz7xgtSNSc+FH88XZGepxJVn5Tqjsrre0QkIzbdglNc2Tdvbie50rW0z3DYd9e/PD2PEImiunrfhVM5rV7r/CJfnFvRPDk8p+uD3PuIPPyoGFpIvu9lD+ghP/likbWhYPTVWW53SvPPud6NpG4i87j5wSYijg5uC7Tno2LTr1dwCrRh6kY0g59N+3w4J7d+jjrw4/FvQZELvtsgdJdTiXnQ2N/hCFuThPbBqdXp3gFHz7BUwyYBiAD+QQx2xTbnA3be0SratJDvCZ/vuqrnB42D2kXXPJU1273psBJ7KnVSm6XhU1OmYgt+iPBpFew6dzqLGvGFJyEyacXJ8+9a4hg== 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=vxmDk/2iSI+UsJu28/ANZ/il3ws1Kfhx5WW+Jf0xHt4=; b=iZLFVl7npbn1Khe0XUBL9p04eGiTDuBz534VdBH8SUtuFmKS1z3dV42KgulSBJIKmy28sJpX/no0GEkru9pnpiPS8ZbzS7eA73o0Knpkx7uiwlKEjNDPI42+kpQEVvpMkll6K5MjhgfvuDm3pLEFjE2rE2HGR94uukWtuI08Nbg= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=oss.nxp.com; Received: from DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) by AM9PR04MB7506.eurprd04.prod.outlook.com (2603:10a6:20b:281::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7452.50; Mon, 15 Apr 2024 08:43:07 +0000 Received: from DU0PR04MB9417.eurprd04.prod.outlook.com ([fe80::d30b:44e7:e78e:662d]) by DU0PR04MB9417.eurprd04.prod.outlook.com ([fe80::d30b:44e7:e78e:662d%4]) with mapi id 15.20.7452.041; Mon, 15 Apr 2024 08:43:07 +0000 From: "Peng Fan (OSS)" Date: Mon, 15 Apr 2024 16:50:52 +0800 Subject: [PATCH v10 4/4] pinctrl: Implementation of the generic scmi-pinctrl driver Message-Id: <20240415-pinctrl-scmi-v10-4-59c6e7a586ee@nxp.com> References: <20240415-pinctrl-scmi-v10-0-59c6e7a586ee@nxp.com> In-Reply-To: <20240415-pinctrl-scmi-v10-0-59c6e7a586ee@nxp.com> To: Sudeep Holla , Cristian Marussi , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Linus Walleij , Dan Carpenter Cc: Dhruva Gole , Andy Shevchenko , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-gpio@vger.kernel.org, Peng Fan , Oleksii Moisieiev X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1713171062; l=18530; i=peng.fan@nxp.com; s=20230812; h=from:subject:message-id; bh=IOtzx+YMGFm2KwYZUPsN0IKPwxoPPQzwf7S9Idob8PY=; b=TDKDJBMyJqWgKdpXkEyMIVG5reXKpC9Ze1YguHscePhoz72v/EEo/GYdZfyDYKZ7qXukS8pBx Kw2w24gH90wAsis3+rPU1mSocKFc81NwgxWcYm6DyHtC+9xtVuH9k8g X-Developer-Key: i=peng.fan@nxp.com; a=ed25519; pk=I4sJg7atIT1g63H7bb5lDRGR2gJW14RKDD0wFL8TT1g= X-ClientProxiedBy: SG2PR02CA0011.apcprd02.prod.outlook.com (2603:1096:3:17::23) To DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) Precedence: bulk X-Mailing-List: linux-gpio@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: DU0PR04MB9417:EE_|AM9PR04MB7506:EE_ X-MS-Office365-Filtering-Correlation-Id: 245d0cc5-ca46-446f-6d19-08dc5d2812d1 X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DU0PR04MB9417.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230031)(1800799015)(7416005)(52116005)(376005)(366007)(38350700005);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?q?kOhdqVzywnU4tCt1UiLMyxrIukZp?= =?utf-8?q?/PDqrqjSlSq6Njsjb0iVBmUX6VogXNLcrVrpOYVPgTrOFmaROIYvuDcx6loQljCio?= =?utf-8?q?r9awgFbB+94gdIQkWix/Apn2ZvZoZf8MDO/89+4Y5ZdOL0ZkuXEPaBdj7oMPYKN2Y?= =?utf-8?q?8bZOjx6Dn1/M+pHUAo4pCVBRwRfA4V6/TjKhzjO0JWnDHZSvSUPEeKgCc1OO6Rhfq?= =?utf-8?q?oGK4Kp2ZrZRqlF8lBrWyJvATJ0N7Qpry7Gh2l8oxkg85/CwsZNJBEll+HSYRbkh3X?= =?utf-8?q?CEIhp8eX9EXxXoQGV26yLz2inHy8rZwg2KWtvWwoVtFCg436e2sQqc1JlHCEhqo/k?= =?utf-8?q?+l+5tANzIEZ5D6z3979itjxHFDDmHRa8cW9lq8u4zFF9JkmIMmk73StUoITqOE9Yo?= =?utf-8?q?+5y+euc0AxL6qvvh88YSXKMKk8IrLrQLzO0M+PIul3C+5/McoJLUXlB0fWlF/OnAK?= =?utf-8?q?0i3jKoYNB29ZrSbT25xMtzv3ZUTS2KUwulh2MISYQBEKPkek3vIM0r7lhxVROOD41?= =?utf-8?q?a83zxFky2ayE2zCp4NWyAUUdYCp4WwG7DNiV4fiCYBvWJDgcYtG1M9jIzqYuUYnH4?= =?utf-8?q?FN5l0ZLvIiDLdv1o0J82KZgkIqMFOCkvfMCcCLcmE21uv0k1ieL6ZBlxhBGW4Co9g?= =?utf-8?q?+UhwC+A4ToFcwb9s/9nOKIh/jFHUuG3dqwDlAmt2LT+aHLjlEJX6doVxffAdIuQWy?= =?utf-8?q?HbYriooYPvFReiu0IVekfVH7+jQsOEqwuq92w3LfBcHoRZ1mOH54Dj5946tb4J4Pr?= =?utf-8?q?DD9RoYamGXQM+waP/aSkeUY9Y6fdKr05L7i0rxWPhWLqam79RsHCSnlHS9u9+7W40?= =?utf-8?q?wMXm+5Jd/Il81JhKENSgUeq67vZEfJBbPgzDuWLeJpgxvEJrxb4g6maq0iPvE25WX?= =?utf-8?q?7Wue81VbSzRF15EZbHKtK3h6am8coK7Z9avNh5tV6sXQfOnXLcZp4svDRVP43iIRv?= =?utf-8?q?Nc4uKJ39lyEJwiKwA99Slx11TnvFVrg0ZSjQUwxQiqySlXEfOiz9N4+hZhPS7wPJh?= =?utf-8?q?NGykOWthXNxyTHLdM7akn7HJbogvbJ5E0Wm994ZARFE6nLUHSzIl+uphXdkPSRyy3?= =?utf-8?q?zE4VyInqRcE8+fZ4q6GSvgvrnckhYt3plnhdtItcmcQxS2A+tcNsBqgyUTEsyVsFq?= =?utf-8?q?YDDdSL+dQfg81/gQx0f2+A2iwSEM3Ful2s2dbFNNz3vZpCCFacAKXYzCMZta1FrPu?= =?utf-8?q?SMaJcfOG2DN5l/GEqKEY5RrxLQ0B42Tybltvceo8Rjrs21Fy8Eol7wTQYDZNfm4fJ?= =?utf-8?q?Xxvpp135IQWWFgFI/eQDODxZ1GsF0EE4kKs/WcqtS427ALim+yl6cop35Q89YhLe3?= =?utf-8?q?7Ir0CvQ1LZXRYuzfc0k7+W6yF8xDaxBibU3ZbCcXG0WpQh5c1G5Xl/mkunF66u1+W?= =?utf-8?q?/mgKNzpQmtj8jgNeNeU36zP4lnmhRpn7gpPNgmoyuXQWc4QHXGTIC1VdrP7DpBLCv?= =?utf-8?q?JfVBSZ7mc2rVnwE1nscXHJvzh+emPpRkJMX9xvAVt95p5MKtRxrcanWoURbb00jRV?= =?utf-8?q?uD8mit9rGdYA?= X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 245d0cc5-ca46-446f-6d19-08dc5d2812d1 X-MS-Exchange-CrossTenant-AuthSource: DU0PR04MB9417.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Apr 2024 08:43:07.6959 (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: Z1ntymxtmttbz/pYt6mTvGHs8IYzu4gzrVt5lAe3uL9p1yidmd0PJEshJVxTbJFC+RAwtKHNqgdnQNmxP6S/Ww== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM9PR04MB7506 From: Peng Fan scmi-pinctrl driver implements pinctrl driver interface and using SCMI protocol to redirect messages from pinctrl subsystem SDK to SCMI platform firmware, which does the changes in HW. Co-developed-by: Oleksii Moisieiev Signed-off-by: Oleksii Moisieiev Reviewed-by: Dhruva Gole Signed-off-by: Peng Fan Reviewed-by: Andy Shevchenko --- MAINTAINERS | 1 + drivers/pinctrl/Kconfig | 11 + drivers/pinctrl/Makefile | 1 + drivers/pinctrl/pinctrl-scmi.c | 572 +++++++++++++++++++++++++++++++++++++++++ 4 files changed, 585 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index b1b074ce2cf3..a37aaff190c7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -21615,6 +21615,7 @@ F: drivers/cpufreq/sc[mp]i-cpufreq.c F: drivers/firmware/arm_scmi/ F: drivers/firmware/arm_scpi.c F: drivers/hwmon/scmi-hwmon.c +F: drivers/pinctrl/pinctrl-scmi.c F: drivers/pmdomain/arm/ F: drivers/powercap/arm_scmi_powercap.c F: drivers/regulator/scmi-regulator.c diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index 1be05efccc29..7e4f93a3bc7a 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -450,6 +450,17 @@ config PINCTRL_ROCKCHIP help This support pinctrl and GPIO driver for Rockchip SoCs. +config PINCTRL_SCMI + tristate "Pinctrl driver using SCMI protocol interface" + depends on ARM_SCMI_PROTOCOL || COMPILE_TEST + select PINMUX + select GENERIC_PINCONF + help + This driver provides support for pinctrl which is controlled + by firmware that implements the SCMI interface. + It uses SCMI Message Protocol to interact with the + firmware providing all the pinctrl controls. + config PINCTRL_SINGLE tristate "One-register-per-pin type device tree based pinctrl driver" depends on OF diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile index 2152539b53d5..cc809669405a 100644 --- a/drivers/pinctrl/Makefile +++ b/drivers/pinctrl/Makefile @@ -45,6 +45,7 @@ obj-$(CONFIG_PINCTRL_PIC32) += pinctrl-pic32.o obj-$(CONFIG_PINCTRL_PISTACHIO) += pinctrl-pistachio.o obj-$(CONFIG_PINCTRL_RK805) += pinctrl-rk805.o obj-$(CONFIG_PINCTRL_ROCKCHIP) += pinctrl-rockchip.o +obj-$(CONFIG_PINCTRL_SCMI) += pinctrl-scmi.o obj-$(CONFIG_PINCTRL_SINGLE) += pinctrl-single.o obj-$(CONFIG_PINCTRL_ST) += pinctrl-st.o obj-$(CONFIG_PINCTRL_STMFX) += pinctrl-stmfx.o diff --git a/drivers/pinctrl/pinctrl-scmi.c b/drivers/pinctrl/pinctrl-scmi.c new file mode 100644 index 000000000000..accebe3f0706 --- /dev/null +++ b/drivers/pinctrl/pinctrl-scmi.c @@ -0,0 +1,572 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * System Control and Power Interface (SCMI) Protocol based pinctrl driver + * + * Copyright (C) 2024 EPAM + * Copyright 2024 NXP + */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#include "pinctrl-utils.h" +#include "core.h" +#include "pinconf.h" + +#define DRV_NAME "scmi-pinctrl" + +/* Define num configs, if not large than 4 use stack, else use kcalloc */ +#define SCMI_NUM_CONFIGS 4 + +static const struct scmi_pinctrl_proto_ops *pinctrl_ops; + +struct scmi_pinctrl { + struct device *dev; + struct scmi_protocol_handle *ph; + struct pinctrl_dev *pctldev; + struct pinctrl_desc pctl_desc; + struct pinfunction *functions; + unsigned int nr_functions; + struct pinctrl_pin_desc *pins; + unsigned int nr_pins; +}; + +static int pinctrl_scmi_get_groups_count(struct pinctrl_dev *pctldev) +{ + struct scmi_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev); + + return pinctrl_ops->count_get(pmx->ph, GROUP_TYPE); +} + +static const char *pinctrl_scmi_get_group_name(struct pinctrl_dev *pctldev, + unsigned int selector) +{ + int ret; + const char *name; + struct scmi_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev); + + ret = pinctrl_ops->name_get(pmx->ph, selector, GROUP_TYPE, &name); + if (ret) { + dev_err(pmx->dev, "get name failed with err %d", ret); + return NULL; + } + + return name; +} + +static int pinctrl_scmi_get_group_pins(struct pinctrl_dev *pctldev, + unsigned int selector, + const unsigned int **pins, + unsigned int *num_pins) +{ + struct scmi_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev); + + return pinctrl_ops->group_pins_get(pmx->ph, selector, pins, num_pins); +} + +static const struct pinctrl_ops pinctrl_scmi_pinctrl_ops = { + .get_groups_count = pinctrl_scmi_get_groups_count, + .get_group_name = pinctrl_scmi_get_group_name, + .get_group_pins = pinctrl_scmi_get_group_pins, +#ifdef CONFIG_OF + .dt_node_to_map = pinconf_generic_dt_node_to_map_all, + .dt_free_map = pinconf_generic_dt_free_map, +#endif +}; + +static int pinctrl_scmi_get_functions_count(struct pinctrl_dev *pctldev) +{ + struct scmi_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev); + + return pinctrl_ops->count_get(pmx->ph, FUNCTION_TYPE); +} + +static const char *pinctrl_scmi_get_function_name(struct pinctrl_dev *pctldev, + unsigned int selector) +{ + int ret; + const char *name; + struct scmi_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev); + + ret = pinctrl_ops->name_get(pmx->ph, selector, FUNCTION_TYPE, &name); + if (ret) { + dev_err(pmx->dev, "get name failed with err %d", ret); + return NULL; + } + + return name; +} + +static int pinctrl_scmi_get_function_groups(struct pinctrl_dev *pctldev, + unsigned int selector, + const char * const **p_groups, + unsigned int * const p_num_groups) +{ + struct pinfunction *func; + const unsigned int *group_ids; + unsigned int num_groups; + const char **groups; + int ret, i; + struct scmi_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev); + + if (!p_groups || !p_num_groups) + return -EINVAL; + + if (selector >= pmx->nr_functions) + return -EINVAL; + + func = &pmx->functions[selector]; + if (func->ngroups) + goto done; + + ret = pinctrl_ops->function_groups_get(pmx->ph, selector, &num_groups, + &group_ids); + if (ret) { + dev_err(pmx->dev, "Unable to get function groups, err %d", ret); + return ret; + } + if (!num_groups) + return -EINVAL; + + groups = kcalloc(num_groups, sizeof(*groups), GFP_KERNEL); + if (!groups) + return -ENOMEM; + + for (i = 0; i < num_groups; i++) { + groups[i] = pinctrl_scmi_get_group_name(pctldev, group_ids[i]); + if (!groups[i]) { + ret = -EINVAL; + goto err_free; + } + } + + func->ngroups = num_groups; + func->groups = groups; +done: + *p_groups = func->groups; + *p_num_groups = func->ngroups; + + return 0; + +err_free: + kfree(groups); + + return ret; +} + +static int pinctrl_scmi_func_set_mux(struct pinctrl_dev *pctldev, + unsigned int selector, unsigned int group) +{ + struct scmi_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev); + + return pinctrl_ops->mux_set(pmx->ph, selector, group); +} + +static int pinctrl_scmi_request(struct pinctrl_dev *pctldev, + unsigned int offset) +{ + struct scmi_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev); + + return pinctrl_ops->pin_request(pmx->ph, offset); +} + +static int pinctrl_scmi_free(struct pinctrl_dev *pctldev, unsigned int offset) +{ + struct scmi_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev); + + return pinctrl_ops->pin_free(pmx->ph, offset); +} + +static const struct pinmux_ops pinctrl_scmi_pinmux_ops = { + .request = pinctrl_scmi_request, + .free = pinctrl_scmi_free, + .get_functions_count = pinctrl_scmi_get_functions_count, + .get_function_name = pinctrl_scmi_get_function_name, + .get_function_groups = pinctrl_scmi_get_function_groups, + .set_mux = pinctrl_scmi_func_set_mux, +}; + +static int pinctrl_scmi_map_pinconf_type(enum pin_config_param param, + enum scmi_pinctrl_conf_type *type) +{ + u32 arg = param; + + switch (arg) { + case PIN_CONFIG_BIAS_BUS_HOLD: + *type = SCMI_PIN_BIAS_BUS_HOLD; + break; + case PIN_CONFIG_BIAS_DISABLE: + *type = SCMI_PIN_BIAS_DISABLE; + break; + case PIN_CONFIG_BIAS_HIGH_IMPEDANCE: + *type = SCMI_PIN_BIAS_HIGH_IMPEDANCE; + break; + case PIN_CONFIG_BIAS_PULL_DOWN: + *type = SCMI_PIN_BIAS_PULL_DOWN; + break; + case PIN_CONFIG_BIAS_PULL_PIN_DEFAULT: + *type = SCMI_PIN_BIAS_PULL_DEFAULT; + break; + case PIN_CONFIG_BIAS_PULL_UP: + *type = SCMI_PIN_BIAS_PULL_UP; + break; + case PIN_CONFIG_DRIVE_OPEN_DRAIN: + *type = SCMI_PIN_DRIVE_OPEN_DRAIN; + break; + case PIN_CONFIG_DRIVE_OPEN_SOURCE: + *type = SCMI_PIN_DRIVE_OPEN_SOURCE; + break; + case PIN_CONFIG_DRIVE_PUSH_PULL: + *type = SCMI_PIN_DRIVE_PUSH_PULL; + break; + case PIN_CONFIG_DRIVE_STRENGTH: + *type = SCMI_PIN_DRIVE_STRENGTH; + break; + case PIN_CONFIG_DRIVE_STRENGTH_UA: + *type = SCMI_PIN_DRIVE_STRENGTH; + break; + case PIN_CONFIG_INPUT_DEBOUNCE: + *type = SCMI_PIN_INPUT_DEBOUNCE; + break; + case PIN_CONFIG_INPUT_ENABLE: + *type = SCMI_PIN_INPUT_MODE; + break; + case PIN_CONFIG_INPUT_SCHMITT: + *type = SCMI_PIN_INPUT_SCHMITT; + break; + case PIN_CONFIG_INPUT_SCHMITT_ENABLE: + *type = SCMI_PIN_INPUT_MODE; + break; + case PIN_CONFIG_MODE_LOW_POWER: + *type = SCMI_PIN_LOW_POWER_MODE; + break; + case PIN_CONFIG_OUTPUT: + *type = SCMI_PIN_OUTPUT_VALUE; + break; + case PIN_CONFIG_OUTPUT_ENABLE: + *type = SCMI_PIN_OUTPUT_MODE; + break; + case PIN_CONFIG_OUTPUT_IMPEDANCE_OHMS: + *type = SCMI_PIN_OUTPUT_VALUE; + break; + case PIN_CONFIG_POWER_SOURCE: + *type = SCMI_PIN_POWER_SOURCE; + break; + case PIN_CONFIG_SLEW_RATE: + *type = SCMI_PIN_SLEW_RATE; + break; + case SCMI_PIN_OEM_START ... SCMI_PIN_OEM_END: + *type = arg; + break; + default: + return -EINVAL; + } + + return 0; +} + +static int pinctrl_scmi_pinconf_get(struct pinctrl_dev *pctldev, + unsigned int pin, unsigned long *config) +{ + int ret; + struct scmi_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev); + enum pin_config_param config_type; + enum scmi_pinctrl_conf_type type; + u32 config_value; + + if (!config) + return -EINVAL; + + config_type = pinconf_to_config_param(*config); + + ret = pinctrl_scmi_map_pinconf_type(config_type, &type); + if (ret) + return ret; + + ret = pinctrl_ops->settings_get_one(pmx->ph, pin, PIN_TYPE, type, + &config_value); + if (ret) { + /* Convert SCMI error code to PINCTRL expected error code */ + if (ret == -EOPNOTSUPP) + ret = -ENOTSUPP; + return ret; + } + + *config = pinconf_to_config_packed(config_type, config_value); + + return 0; +} + +static int +pinctrl_scmi_alloc_configs(struct pinctrl_dev *pctldev, u32 num_configs, + u32 **p_config_value, + enum scmi_pinctrl_conf_type **p_config_type) +{ + if (num_configs <= SCMI_NUM_CONFIGS) + return 0; + + *p_config_value = kcalloc(num_configs, sizeof(**p_config_value), GFP_KERNEL); + if (!*p_config_value) + return -ENOMEM; + + *p_config_type = kcalloc(num_configs, sizeof(**p_config_type), GFP_KERNEL); + if (!*p_config_type) { + kfree(*p_config_value); + return -ENOMEM; + } + + return 0; +} + +static void +pinctrl_scmi_free_configs(struct pinctrl_dev *pctldev, u32 num_configs, + u32 **p_config_value, + enum scmi_pinctrl_conf_type **p_config_type) +{ + if (num_configs <= SCMI_NUM_CONFIGS) + return; + + kfree(*p_config_value); + kfree(*p_config_type); +} + +static int pinctrl_scmi_pinconf_set(struct pinctrl_dev *pctldev, + unsigned int pin, + unsigned long *configs, + unsigned int num_configs) +{ + int i, ret; + struct scmi_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev); + enum scmi_pinctrl_conf_type config_type[SCMI_NUM_CONFIGS]; + u32 config_value[SCMI_NUM_CONFIGS]; + enum scmi_pinctrl_conf_type *p_config_type = config_type; + u32 *p_config_value = config_value; + enum pin_config_param param; + + if (!configs || !num_configs) + return -EINVAL; + + ret = pinctrl_scmi_alloc_configs(pctldev, num_configs, &p_config_type, + &p_config_value); + if (ret) + return ret; + + for (i = 0; i < num_configs; i++) { + param = pinconf_to_config_param(configs[i]); + ret = pinctrl_scmi_map_pinconf_type(param, &p_config_type[i]); + if (ret) { + dev_err(pmx->dev, "Error map pinconf_type %d\n", ret); + goto free_config; + } + p_config_value[i] = pinconf_to_config_argument(configs[i]); + } + + ret = pinctrl_ops->settings_conf(pmx->ph, pin, PIN_TYPE, num_configs, + p_config_type, p_config_value); + if (ret) + dev_err(pmx->dev, "Error parsing config %d\n", ret); + +free_config: + pinctrl_scmi_free_configs(pctldev, num_configs, &p_config_type, + &p_config_value); + return ret; +} + +static int pinctrl_scmi_pinconf_group_set(struct pinctrl_dev *pctldev, + unsigned int group, + unsigned long *configs, + unsigned int num_configs) +{ + int i, ret; + struct scmi_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev); + enum scmi_pinctrl_conf_type config_type[SCMI_NUM_CONFIGS]; + u32 config_value[SCMI_NUM_CONFIGS]; + enum scmi_pinctrl_conf_type *p_config_type = config_type; + u32 *p_config_value = config_value; + enum pin_config_param param; + + if (!configs || !num_configs) + return -EINVAL; + + ret = pinctrl_scmi_alloc_configs(pctldev, num_configs, &p_config_type, + &p_config_value); + if (ret) + return ret; + + for (i = 0; i < num_configs; i++) { + param = pinconf_to_config_param(configs[i]); + ret = pinctrl_scmi_map_pinconf_type(param, &p_config_type[i]); + if (ret) { + dev_err(pmx->dev, "Error map pinconf_type %d\n", ret); + goto free_config; + } + + p_config_value[i] = pinconf_to_config_argument(configs[i]); + } + + ret = pinctrl_ops->settings_conf(pmx->ph, group, GROUP_TYPE, + num_configs, p_config_type, + p_config_value); + if (ret) + dev_err(pmx->dev, "Error parsing config %d", ret); + +free_config: + pinctrl_scmi_free_configs(pctldev, num_configs, &p_config_type, + &p_config_value); + return ret; +}; + +static int pinctrl_scmi_pinconf_group_get(struct pinctrl_dev *pctldev, + unsigned int group, + unsigned long *config) +{ + int ret; + struct scmi_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev); + enum pin_config_param config_type; + enum scmi_pinctrl_conf_type type; + u32 config_value; + + if (!config) + return -EINVAL; + + config_type = pinconf_to_config_param(*config); + ret = pinctrl_scmi_map_pinconf_type(config_type, &type); + if (ret) { + dev_err(pmx->dev, "Error map pinconf_type %d\n", ret); + return ret; + } + + ret = pinctrl_ops->settings_get_one(pmx->ph, group, GROUP_TYPE, type, + &config_value); + if (ret) { + /* Convert SCMI error code to PINCTRL expected error code */ + if (ret == -EOPNOTSUPP) + ret = -ENOTSUPP; + return ret; + } + + *config = pinconf_to_config_packed(config_type, config_value); + + return 0; +} + +static const struct pinconf_ops pinctrl_scmi_pinconf_ops = { + .is_generic = true, + .pin_config_get = pinctrl_scmi_pinconf_get, + .pin_config_set = pinctrl_scmi_pinconf_set, + .pin_config_group_set = pinctrl_scmi_pinconf_group_set, + .pin_config_group_get = pinctrl_scmi_pinconf_group_get, + .pin_config_config_dbg_show = pinconf_generic_dump_config, +}; + +static int pinctrl_scmi_get_pins(struct scmi_pinctrl *pmx, + struct pinctrl_desc *desc) +{ + struct pinctrl_pin_desc *pins; + unsigned int npins; + int ret, i; + + npins = pinctrl_ops->count_get(pmx->ph, PIN_TYPE); + /* + * npins will never be zero, the scmi pinctrl driver has bailed out + * if npins is zero. + */ + pins = devm_kmalloc_array(pmx->dev, npins, sizeof(*pins), GFP_KERNEL); + if (!pins) + return -ENOMEM; + + for (i = 0; i < npins; i++) { + pins[i].number = i; + /* + * The memory for name is handled by the scmi firmware driver, + * no need free here + */ + ret = pinctrl_ops->name_get(pmx->ph, i, PIN_TYPE, &pins[i].name); + if (ret) + return dev_err_probe(pmx->dev, ret, + "Can't get name for pin %d", i); + } + + desc->npins = npins; + desc->pins = pins; + dev_dbg(pmx->dev, "got pins %u", npins); + + return 0; +} + +static int scmi_pinctrl_probe(struct scmi_device *sdev) +{ + int ret; + struct device *dev = &sdev->dev; + struct scmi_pinctrl *pmx; + const struct scmi_handle *handle; + struct scmi_protocol_handle *ph; + + if (!sdev->handle) + return -EINVAL; + + handle = sdev->handle; + + pinctrl_ops = handle->devm_protocol_get(sdev, SCMI_PROTOCOL_PINCTRL, &ph); + if (IS_ERR(pinctrl_ops)) + return PTR_ERR(pinctrl_ops); + + pmx = devm_kzalloc(dev, sizeof(*pmx), GFP_KERNEL); + if (!pmx) + return -ENOMEM; + + pmx->ph = ph; + + pmx->dev = dev; + pmx->pctl_desc.name = DRV_NAME; + pmx->pctl_desc.owner = THIS_MODULE; + pmx->pctl_desc.pctlops = &pinctrl_scmi_pinctrl_ops; + pmx->pctl_desc.pmxops = &pinctrl_scmi_pinmux_ops; + pmx->pctl_desc.confops = &pinctrl_scmi_pinconf_ops; + + ret = pinctrl_scmi_get_pins(pmx, &pmx->pctl_desc); + if (ret) + return ret; + + ret = devm_pinctrl_register_and_init(dev, &pmx->pctl_desc, pmx, + &pmx->pctldev); + if (ret) + return dev_err_probe(dev, ret, "Failed to register pinctrl\n"); + + pmx->nr_functions = pinctrl_scmi_get_functions_count(pmx->pctldev); + pmx->functions = devm_kcalloc(dev, pmx->nr_functions, + sizeof(*pmx->functions), GFP_KERNEL); + if (!pmx->functions) + return -ENOMEM; + + return pinctrl_enable(pmx->pctldev); +} + +static const struct scmi_device_id scmi_id_table[] = { + { SCMI_PROTOCOL_PINCTRL, "pinctrl" }, + { } +}; +MODULE_DEVICE_TABLE(scmi, scmi_id_table); + +static struct scmi_driver scmi_pinctrl_driver = { + .name = DRV_NAME, + .probe = scmi_pinctrl_probe, + .id_table = scmi_id_table, +}; +module_scmi_driver(scmi_pinctrl_driver); + +MODULE_AUTHOR("Oleksii Moisieiev "); +MODULE_AUTHOR("Peng Fan "); +MODULE_DESCRIPTION("ARM SCMI pin controller driver"); +MODULE_LICENSE("GPL");