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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 BN2PEPF000055DF.mail.protection.outlook.com (10.167.245.9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8158.0 via Frontend Transport; Tue, 5 Nov 2024 15:33:42 +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; Tue, 5 Nov 2024 09:33:40 -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 v4 11/20] ACPI: platform_profile: Add choices attribute for class interface Date: Tue, 5 Nov 2024 09:33:07 -0600 Message-ID: <20241105153316.378-12-mario.limonciello@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241105153316.378-1-mario.limonciello@amd.com> References: <20241105153316.378-1-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: BN2PEPF000055DF:EE_|DM4PR12MB5723:EE_ X-MS-Office365-Filtering-Correlation-Id: 41e95df9-60b1-4209-9cc5-08dcfdaf3a84 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|82310400026|36860700013|376014|7416014|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)(82310400026)(36860700013)(376014)(7416014)(1800799024); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Nov 2024 15:33:42.2016 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 41e95df9-60b1-4209-9cc5-08dcfdaf3a84 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: BN2PEPF000055DF.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR12MB5723 The `choices` file will show all possible choices that a given platform profile handler can support. Signed-off-by: Mario Limonciello --- drivers/acpi/platform_profile.c | 63 +++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profile.c index 986bd636be226..e1b6569c4ee70 100644 --- a/drivers/acpi/platform_profile.c +++ b/drivers/acpi/platform_profile.c @@ -25,6 +25,47 @@ static_assert(ARRAY_SIZE(profile_names) == PLATFORM_PROFILE_LAST); static DEFINE_IDR(platform_profile_minor_idr); +/** + * _commmon_choices_show - Show the available profile choices + * @choices: The available profile choices + * @buf: The buffer to write to + * Return: The number of bytes written + */ +static ssize_t _commmon_choices_show(unsigned long choices, char *buf) +{ + int i, len = 0; + + for_each_set_bit(i, &choices, PLATFORM_PROFILE_LAST) { + if (len == 0) + len += sysfs_emit_at(buf, len, "%s", profile_names[i]); + else + len += sysfs_emit_at(buf, len, " %s", profile_names[i]); + } + len += sysfs_emit_at(buf, len, "\n"); + + return len; +} + +/** + * _get_class_choices - Get the available profile choices for a class device + * @dev: The class device + * Return: The available profile choices + */ +static int _get_class_choices(struct device *dev, unsigned long *choices) +{ + struct platform_profile_handler *handler; + int i; + + scoped_cond_guard(mutex_intr, return -ERESTARTSYS, &profile_lock) { + handler = dev_get_drvdata(dev); + for_each_set_bit(i, handler->choices, PLATFORM_PROFILE_LAST) + *choices |= BIT(i); + } + + return 0; +} + + /** * name_show - Show the name of the profile handler * @dev: The device @@ -41,10 +82,32 @@ static ssize_t name_show(struct device *dev, return sysfs_emit(buf, "%s\n", handler->name); } +/** + * choices_show - Show the available profile choices + * @dev: The device + * @attr: The attribute + * @buf: The buffer to write to + */ +static ssize_t choices_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + unsigned long choices = 0; + int err; + + err = _get_class_choices(dev, &choices); + if (err) + return err; + + return _commmon_choices_show(choices, buf); +} + static DEVICE_ATTR_RO(name); +static DEVICE_ATTR_RO(choices); static struct attribute *profile_attrs[] = { &dev_attr_name.attr, + &dev_attr_choices.attr, NULL }; ATTRIBUTE_GROUPS(profile);