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Thu, 9 Nov 2023 10:33:34 -0800 From: Sumit Gupta To: , , , , , , , , , CC: , , , , , , , Subject: [Patch v6 1/2] ACPI: thermal: Add Thermal fast Sampling Period (_TFP) support Date: Fri, 10 Nov 2023 00:03:21 +0530 Message-ID: <20231109183322.28039-2-sumitg@nvidia.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20231109183322.28039-1-sumitg@nvidia.com> References: <20231109183322.28039-1-sumitg@nvidia.com> X-NVConfidentiality: public Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1PEPF000044F5:EE_|SJ2PR12MB9209:EE_ X-MS-Office365-Filtering-Correlation-Id: 37e854d9-db12-4d28-bf2b-08dbe1526f45 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: gpMtmHYUnNGf57io0LT3YH/mXihVdu7vdOos8EoCvasfZf8xYve5QeHaFUYHlkXYksh08OUMXIzLzXB8qkXoa/2N5FrXXWrcYC6305EOnllzan008mPAfPE7hiA4XrmfiQqa3IFkvzsYwcxRy549iHTtABqpTaYeI2YROjljpAI2aw2zykg+utwxArttmYaQODfuWAygOEORLZkU+fO3Ryp8Gs3qwbl1NIuUHwSg04uMr5ge987ant08/Ol0VYF2lgjokk9g/c03c7o3NEKevN6tAoA8aJY1PVx2QBzmKHZBGSavZJhamLn9CH6vHYmjlLnUFS10UM465xICQEAVDvNEf4vNpYROjbHg9nAl6xJ4OQusWgERokdbd5DxT/2Ts8MWJLx4pAY940rP6oJyE5ZN9Ic8VtvK6jt9hP+y/8HDIBlM52VoOla7+84OYqFnn2lDMkhWqy6vn/88dhJkZbLDy+IylMBvAmUhKLPoYVj8+xH40fZRhNiU5z4iw30HZ9b7FWyhVqX5RoEuf1j+dymaq/h6DkdOOPki1KjzbIe7tW6aTDP/3q9L9pQjKwR5JMUMyPzt/qYaeGuhDGeuVL3hxZAppTeqtb0dbv34Z07mzMBmXNmqPKg7z6RbTvktobMz9FyLZAu9r2Yg0FGu5cn5dqSei7aO1k6SnaO0+l4I/fqJYWYBThZoKgoxINTg6Ief4Bjt0nR+m5haHE5P0Du3FTaT78fk5vXwuHJRP7hzo3yKLdOA6kwGFM9uku1p2SJ1r9RP0bDKKiOtnuRqIl9xCk6qEuWjYC7fP4tRby16g6Pmx1NC/PCat0flszX8 X-Forefront-Antispam-Report: CIP:216.228.117.161; CTRY:US; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:dc6edge2.nvidia.com; CAT:NONE; SFS:(13230031)(4636009)(39860400002)(346002)(376002)(396003)(136003)(230922051799003)(82310400011)(186009)(1800799009)(451199024)(64100799003)(46966006)(36840700001)(40470700004)(7416002)(2906002)(2616005)(47076005)(41300700001)(426003)(54906003)(36860700001)(336012)(5660300002)(4326008)(8676002)(8936002)(86362001)(7636003)(82740400003)(356005)(1076003)(110136005)(107886003)(26005)(70206006)(70586007)(316002)(83380400001)(478600001)(36756003)(40480700001)(921008)(40460700003)(7696005)(6666004)(2101003)(83996005); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Nov 2023 18:33:57.2060 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 37e854d9-db12-4d28-bf2b-08dbe1526f45 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.117.161]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1PEPF000044F5.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ2PR12MB9209 From: Jeff Brasen Add support of "Thermal fast Sampling Period (_TFP)" for Passive cooling. As per [1], _TFP overrides the "Thermal Sampling Period (_TSP)" if both are present in a Thermal zone. [1] ACPI Specification 6.4 - section 11.4.17. _TFP (Thermal fast Sampling Period)" Signed-off-by: Jeff Brasen Co-developed-by: Sumit Gupta Signed-off-by: Sumit Gupta --- drivers/acpi/thermal.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index f74d81abdbfc..3b75eb2260d7 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -90,7 +90,7 @@ struct acpi_thermal_passive { struct acpi_thermal_trip trip; unsigned long tc1; unsigned long tc2; - unsigned long tsp; + unsigned long delay; }; struct acpi_thermal_active { @@ -404,11 +404,17 @@ static bool passive_trip_params_init(struct acpi_thermal *tz) tz->trips.passive.tc2 = tmp; + status = acpi_evaluate_integer(tz->device->handle, "_TFP", NULL, &tmp); + if (ACPI_SUCCESS(status)) { + tz->trips.passive.delay = tmp; + return true; + } + status = acpi_evaluate_integer(tz->device->handle, "_TSP", NULL, &tmp); if (ACPI_FAILURE(status)) return false; - tz->trips.passive.tsp = tmp; + tz->trips.passive.delay = tmp * 100; return true; } @@ -904,7 +910,7 @@ static int acpi_thermal_add(struct acpi_device *device) acpi_trip = &tz->trips.passive.trip; if (acpi_thermal_trip_valid(acpi_trip)) { - passive_delay = tz->trips.passive.tsp * 100; + passive_delay = tz->trips.passive.delay; trip->type = THERMAL_TRIP_PASSIVE; trip->temperature = acpi_thermal_temp(tz, acpi_trip->temp_dk);