From patchwork Thu Nov 7 06:02:42 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mario Limonciello X-Patchwork-Id: 841424 Received: from NAM12-BN8-obe.outbound.protection.outlook.com (mail-bn8nam12on2060.outbound.protection.outlook.com [40.107.237.60]) (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 D5B38193425; Thu, 7 Nov 2024 06:03:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.237.60 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730959424; cv=fail; b=TkGvmDavkMjgeM55GHIHVl9BKeNP90MgBbFAyzcIt35PgpuvnSViKj33ECFVt/eTGS4twOan1hsn06ctmbnHMGwvPiJ+6NCK9lXXoOAMtPLcLykAE6bbLBs7HNehD7aa9SQSTcoR5P/bzFqerg1Ye/ipfxt4v5mLwTFunnwwlHs= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730959424; c=relaxed/simple; bh=q9GZvBlwrd92oTt1mnV2lyNEoxYbU4zV1u2AvfyM0ow=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=pcFfgm1UT1O5/vjl0qyfBncoZFSYF6kQt6+CpvuURjNW4tnVfX5EIMsLRwwvWJMNLnM4CnGOeZeUZGSMUN8fePJsDK4pIJruT9DLScO4nJplwg4B+ePWuYN51rq0eTYemNlTWkTe5jxHEKeZdhj7Pd3fD6EKF0AgjmXrxduyU0k= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com; spf=fail smtp.mailfrom=amd.com; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b=khQYl9cK; arc=fail smtp.client-ip=40.107.237.60 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=amd.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="khQYl9cK" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=t9EW6nvHB/+V6wRjSlBo15Oid0gL5ZjILbQG98OW78Up4VXM5CuJX6P67kvqyc2C+JXG6BhYxiumbo+3KAdbbi3vl+9j7c1Sya3OIW/u12DfWFVfzzSaYufWkH/yuha3ZpSUFIt5gSGwhq6b7yyMyDv5nMeb75zWkgmq4RWgOJJGO56S6Xt23CKLLIcHq9BR6Qn5p1w+9Dbe7gp339G/RMeaZVqxGkRIY9I3f4v0RGTJcZ2yb4sX5Zie8MvXzi5Fv08N/N/5GKouura+4NjBtI+afoDUseqwWSPgeL9pa0uwCyZlXq0IU7FEEeVjvoFYAocfOMnjyWuR3II6txeI+A== 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=OninPEMgDexlVeaKcBObF+G4EqFFKv7D7USsC0HuLoI=; b=leQexynj7/7qj5y2gyUVffZw8s9dIvfzUd+fOHAUljnov+aZySnkV/J6nfYWtgfdgCsPjlZ+dxqmWvaTJGDznc3/hM+sDk1HPxL5ZVGw/Q9ttwt/dWDTFA7+XeSrS10S/PaI3Wst7L7qEtBOYHEtGIMQRB8vN5T9KyUGlnGYyvznOA9ee7/CrjqD5cYSips6HYYTX28Lan3qSeMXnynycyyI42+l1kjCe4UbO5Mvh9kb4aktDsKZcJKCrTxw6riv58SQla3ZbcKmLVbKWbLxTjlu0GgfUS4dJZrRpY95XQM8KFFXTm9T+sCabh0pKF9P25tLO9P48DHDsPB+qdmTvQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=redhat.com smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=OninPEMgDexlVeaKcBObF+G4EqFFKv7D7USsC0HuLoI=; b=khQYl9cKsDgAcIydNFuPusSXYYkL8MuxGzrDre4r+dKTPfswW8cZ14DaM//vryEMbpcwWn9VYdnFge/8WcKMHbSM87j/NJEvwd3DdCI1zxSxTwWuPkDDb+906EdwW8VPYcG5KCbgIeT7UXCK2oEG++R5KqtB4J837zOfP5hnOJY= Received: from CH2PR03CA0016.namprd03.prod.outlook.com (2603:10b6:610:59::26) by CH3PR12MB8403.namprd12.prod.outlook.com (2603:10b6:610:133::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8137.19; Thu, 7 Nov 2024 06:03:40 +0000 Received: from CH2PEPF00000146.namprd02.prod.outlook.com (2603:10b6:610:59:cafe::cb) by CH2PR03CA0016.outlook.office365.com (2603:10b6:610:59::26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8137.19 via Frontend Transport; Thu, 7 Nov 2024 06:03:40 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by CH2PEPF00000146.mail.protection.outlook.com (10.167.244.103) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8137.17 via Frontend Transport; Thu, 7 Nov 2024 06:03:40 +0000 Received: from AUS-P9-MLIMONCI.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Thu, 7 Nov 2024 00:03:37 -0600 From: Mario Limonciello To: Hans de Goede , =?utf-8?q?Ilpo_J=C3=A4rvinen?= CC: "Rafael J . Wysocki" , Len Brown , Maximilian Luz , Lee Chun-Yi , "Shyam Sundar S K" , Corentin Chary , "Luke D . Jones" , Ike Panhc , Henrique de Moraes Holschuh , "Alexis Belmonte" , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Ai Chao , Gergo Koteles , open list , "open list:ACPI" , "open list:MICROSOFT SURFACE PLATFORM PROFILE DRIVER" , "open list:THINKPAD ACPI EXTRAS DRIVER" , Mark Pearson , Matthew Schwartz , Mario Limonciello Subject: [PATCH v5 08/20] ACPI: platform_profile: Create class for ACPI platform profile Date: Thu, 7 Nov 2024 00:02:42 -0600 Message-ID: <20241107060254.17615-9-mario.limonciello@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241107060254.17615-1-mario.limonciello@amd.com> References: <20241107060254.17615-1-mario.limonciello@amd.com> Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH2PEPF00000146:EE_|CH3PR12MB8403:EE_ X-MS-Office365-Filtering-Correlation-Id: 1978dc77-2b8f-4baa-a9ec-08dcfef1ed5c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|376014|7416014|36860700013|82310400026|1800799024; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17; CTRY:US; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:SATLEXMB04.amd.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230040)(376014)(7416014)(36860700013)(82310400026)(1800799024); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Nov 2024 06:03:40.1051 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 1978dc77-2b8f-4baa-a9ec-08dcfef1ed5c X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CH2PEPF00000146.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR12MB8403 When registering a platform profile handler create a class device that will allow changing a single platform profile handler. Tested-by: Mark Pearson Signed-off-by: Mario Limonciello --- v5: * Use ida instead of idr * Use device_unregister instead of device_destroy() * MKDEV (0, 0) --- drivers/acpi/platform_profile.c | 50 +++++++++++++++++++++++++++++--- include/linux/platform_profile.h | 2 ++ 2 files changed, 48 insertions(+), 4 deletions(-) diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profile.c index 0450bdae7c88b..652034b71ee9b 100644 --- a/drivers/acpi/platform_profile.c +++ b/drivers/acpi/platform_profile.c @@ -5,6 +5,7 @@ #include #include #include +#include #include #include #include @@ -22,6 +23,12 @@ static const char * const profile_names[] = { }; static_assert(ARRAY_SIZE(profile_names) == PLATFORM_PROFILE_LAST); +static DEFINE_IDA(platform_profile_ida); + +static const struct class platform_profile_class = { + .name = "platform-profile", +}; + static ssize_t platform_profile_choices_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -113,6 +120,8 @@ void platform_profile_notify(void) { if (!cur_profile) return; + if (!class_is_registered(&platform_profile_class)) + return; sysfs_notify(acpi_kobj, NULL, "platform_profile"); } EXPORT_SYMBOL_GPL(platform_profile_notify); @@ -123,6 +132,9 @@ int platform_profile_cycle(void) enum platform_profile_option next; int err; + if (!class_is_registered(&platform_profile_class)) + return -ENODEV; + scoped_cond_guard(mutex_intr, return -ERESTARTSYS, &profile_lock) { if (!cur_profile) return -ENODEV; @@ -163,20 +175,50 @@ int platform_profile_register(struct platform_profile_handler *pprof) if (cur_profile) return -EEXIST; - err = sysfs_create_group(acpi_kobj, &platform_profile_group); - if (err) - return err; + if (!class_is_registered(&platform_profile_class)) { + /* class for individual handlers */ + err = class_register(&platform_profile_class); + if (err) + return err; + /* legacy sysfs files */ + err = sysfs_create_group(acpi_kobj, &platform_profile_group); + if (err) + goto cleanup_class; + } + + /* create class interface for individual handler */ + pprof->minor = ida_alloc(&platform_profile_ida, GFP_KERNEL); + pprof->class_dev = device_create(&platform_profile_class, NULL, + MKDEV(0, 0), NULL, "platform-profile-%d", + pprof->minor); + if (IS_ERR(pprof->class_dev)) { + err = PTR_ERR(pprof->class_dev); + goto cleanup_ida; + } + dev_set_drvdata(pprof->class_dev, pprof); cur_profile = pprof; return 0; + +cleanup_ida: + ida_free(&platform_profile_ida, pprof->minor); + +cleanup_class: + class_unregister(&platform_profile_class); + + return err; } EXPORT_SYMBOL_GPL(platform_profile_register); int platform_profile_remove(struct platform_profile_handler *pprof) { + int id; guard(mutex)(&profile_lock); - sysfs_remove_group(acpi_kobj, &platform_profile_group); + id = pprof->minor; + device_unregister(pprof->class_dev); + ida_free(&platform_profile_ida, id); + cur_profile = NULL; return 0; } diff --git a/include/linux/platform_profile.h b/include/linux/platform_profile.h index 58279b76d740e..d92a035e6ba6a 100644 --- a/include/linux/platform_profile.h +++ b/include/linux/platform_profile.h @@ -28,6 +28,8 @@ enum platform_profile_option { struct platform_profile_handler { const char *name; + struct device *class_dev; + int minor; unsigned long choices[BITS_TO_LONGS(PLATFORM_PROFILE_LAST)]; int (*profile_get)(struct platform_profile_handler *pprof, enum platform_profile_option *profile);