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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 SN1PEPF00026369.mail.protection.outlook.com (10.167.241.134) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8137.17 via Frontend Transport; Sat, 9 Nov 2024 04:42:37 +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; Fri, 8 Nov 2024 22:42:35 -0600 From: Mario Limonciello To: Hans de Goede , =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= CC: "Rafael J . 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Jones" , Ike Panhc , Henrique de Moraes Holschuh , "Alexis Belmonte" , =?UTF-8?q?Uwe=20Kleine-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 v6 12/22] ACPI: platform_profile: Add choices attribute for class interface Date: Fri, 8 Nov 2024 22:41:41 -0600 Message-ID: <20241109044151.29804-13-mario.limonciello@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241109044151.29804-1-mario.limonciello@amd.com> References: <20241109044151.29804-1-mario.limonciello@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN1PEPF00026369:EE_|CYYPR12MB8963:EE_ X-MS-Office365-Filtering-Correlation-Id: 93aa8639-5d3c-405e-87e5-08dd0078ef9b X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|82310400026|36860700013|376014|7416014; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?uJlqwgvtC/0B1rAXZBCGNep3BCP+x1jcFgPRO8eB7Uq0GlFqodrwCnGhWELv?= =?us-ascii?Q?YVbAymBHMSHgjzOJrT911ZAxFsg5U5Nlo/Zz/i5ZGp36qFrTYjI8kA5O/Hzk?= =?us-ascii?Q?dlDq7m8koVYy8H1+rjFJJf3O9wcVtmkdDKNCDQibM/ll4tYOGPnoYT4vJr3z?= =?us-ascii?Q?glaT4q2Td0F6WlPaYAXE1rgRTwAj3HUN6lFEtmMaqQjw+zzzHTgrsFTnksl9?= =?us-ascii?Q?T8P82DoaRBGdFkcQQQgEwO7XstBq2+fV7FaUQfmSG+OnoH8P0wPpyYUXTemv?= =?us-ascii?Q?uDzWhjrCRuxW+8EexJac64unWtxWnHTBa3YPCfxg7088hbgaDGgnTy7KRxBC?= =?us-ascii?Q?0UF64eo/m2CS/Y30Y9VJJSHWVzDer33dVKFGyIslNbDf1EqeOnDWSuzzZKXq?= =?us-ascii?Q?9mvu3TOFoJQe3Y2q8WJYuSLq+IVGyatI8l7QMw7ELsFkOySVPwZU2oZ2dzKn?= =?us-ascii?Q?gfZ9td2jLGREjVgUPrPb6HtLYGV3ynfb2RevmA0W7/EJ8BfCgMPBmJKy815G?= =?us-ascii?Q?Twve/IQC3Ag1rTjTDtsryMk1u+a3ni2JLpWuSzy1QteY/HLUBF5+X49LhYfZ?= =?us-ascii?Q?Ss4oP0s0oVHAIdT08RoT/hhE/mIn6d8dq06fdzNUgebhCzyQyzJo1sbJf7zy?= =?us-ascii?Q?i3OyHKNu6Dxx1lZ/QLCspTkK305rDpIT62Sge3xxrMKQlREp7yIFI3cD54PV?= =?us-ascii?Q?BdRWIGqE5uWu9X2isAHQMhFOBd4K9uv6QuYHo1xAOVQKUjmB39+5wxG0KD03?= =?us-ascii?Q?YWPuvFsuFiVXvIPJ6bOpDAHwS9qWVm8eT6+b49mnylIAcQJYicvinubx9bfW?= =?us-ascii?Q?jTbN2nQ09inzjsVPa1AO8AZ64A+de/gm4PB274u8O4ZnIeJwiVDCYoLjaOYf?= =?us-ascii?Q?KbqPCrQ8OOK0BeqpPnQgwW6/L3omblR3Q7S09nnzI8uR95E5dhW86ksLUfOc?= =?us-ascii?Q?NS/5sG1SnUfelFTyyjrtahO+XGxfW6t32h6ZQ7WrmisFMGtuMg5wtgZkAfKV?= =?us-ascii?Q?R0uijVlzd/ecCbiSucYWc7yUQjGnTTLUdIU7OVNImZXQAJGqcOWcL6+K/bmH?= =?us-ascii?Q?PfqqXL8ZThxgOhqpeEHFuVp6kkUGuBvxaRR2yhM2hbc/XjCAgNeDV7F3XIB2?= =?us-ascii?Q?fclej/END4DCeeNjqYlMjsELqHje1M8b/ICBm4PggoHGPbw4jU3bIsDriaui?= =?us-ascii?Q?6mGdTFp+XQHvYOFuzsz9bDGhWJf7ncZ8Jd6Gwbcw8jgZpeDQH68nGUeoQTA1?= =?us-ascii?Q?GcEG/28BmUDiU2dKu/mS4q8ouS0ZnSyjeKn6N3/c/6Wd9BcBHE4VwLC1R4zG?= =?us-ascii?Q?holKOB7+UGbyUV7ZzpJXdNMibjVn/pmzuK8uFCjT21ggCQIKFA5QZH+aryMG?= =?us-ascii?Q?Lp4boSaStrOw/0bWQYN5jSjXAQ2fHLEFoSsC2dmG/zqbcuo28A=3D=3D?= 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)(1800799024)(82310400026)(36860700013)(376014)(7416014);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Nov 2024 04:42:37.1720 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 93aa8639-5d3c-405e-87e5-08dd0078ef9b 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: SN1PEPF00026369.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CYYPR12MB8963 Content-Type: text/plain; charset="utf-8" The `choices` file will show all possible choices that a given platform profile handler can support. Tested-by: Mark Pearson Signed-off-by: Mario Limonciello --- v5: * Fix kdoc * Add tag * Fix whitespace * Adjust mutex use --- drivers/acpi/platform_profile.c | 44 +++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profil= e.c index 4e2eda18f7f5f..86d0eb7cc6fc3 100644 --- a/drivers/acpi/platform_profile.c +++ b/drivers/acpi/platform_profile.c @@ -25,6 +25,27 @@ static_assert(ARRAY_SIZE(profile_names) =3D=3D PLATFORM_= PROFILE_LAST); =20 static DEFINE_IDA(platform_profile_ida); =20 +/** + * _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 =3D 0; + + for_each_set_bit(i, choices, PLATFORM_PROFILE_LAST) { + if (len =3D=3D 0) + len +=3D sysfs_emit_at(buf, len, "%s", profile_names[i]); + else + len +=3D sysfs_emit_at(buf, len, " %s", profile_names[i]); + } + len +=3D sysfs_emit_at(buf, len, "\n"); + + return len; +} + /** * name_show - Show the name of the profile handler * @dev: The device @@ -44,9 +65,32 @@ static ssize_t name_show(struct device *dev, return -ERESTARTSYS; } =20 +/** + * 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) +{ + struct platform_profile_handler *handler; + + scoped_cond_guard(mutex_intr, return -ERESTARTSYS, &profile_lock) { + handler =3D dev_get_drvdata(dev); + return _commmon_choices_show(handler->choices, buf); + } + + return -ERESTARTSYS; +} + static DEVICE_ATTR_RO(name); +static DEVICE_ATTR_RO(choices); + static struct attribute *profile_attrs[] =3D { &dev_attr_name.attr, + &dev_attr_choices.attr, NULL }; ATTRIBUTE_GROUPS(profile); --=20 2.43.0