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Fri, 6 Oct 2023 08:36:30 -0700 Received: from drhqmail202.nvidia.com (10.126.190.181) by drhqmail201.nvidia.com (10.126.190.180) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.41; Fri, 6 Oct 2023 08:36:29 -0700 Received: from sumitg-l4t.nvidia.com (10.127.8.10) by mail.nvidia.com (10.126.190.181) with Microsoft SMTP Server id 15.2.986.41 via Frontend Transport; Fri, 6 Oct 2023 08:36:26 -0700 From: Sumit Gupta To: , , , , CC: , , , , , , , Subject: [Patch v3 1/2] ACPI: thermal: Add Thermal fast Sampling Period (_TFP) support Date: Fri, 6 Oct 2023 21:06:11 +0530 Message-ID: <20231006153612.5851-2-sumitg@nvidia.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20231006153612.5851-1-sumitg@nvidia.com> References: <20231006153612.5851-1-sumitg@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MN1PEPF0000ECD8:EE_|LV2PR12MB5991:EE_ X-MS-Office365-Filtering-Correlation-Id: 2b01857f-7399-463e-1126-08dbc68209de X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Oct 2023 15:36:41.4778 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2b01857f-7399-463e-1126-08dbc68209de X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.232];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: MN1PEPF0000ECD8.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV2PR12MB5991 X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO, RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org 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 Signed-off-by: Sumit Gupta --- drivers/acpi/thermal.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 5c21079fbeb6..7eccb36c184a 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 passive_delay; }; struct acpi_thermal_active { @@ -409,11 +409,16 @@ static bool passive_trip_params_init(struct acpi_thermal *tz) tz->trips.passive.tc2 = tmp; - status = acpi_evaluate_integer(tz->device->handle, "_TSP", NULL, &tmp); - if (ACPI_FAILURE(status)) - return false; + status = acpi_evaluate_integer(tz->device->handle, "_TFP", NULL, &tmp); + if (ACPI_FAILURE(status)) { + status = acpi_evaluate_integer(tz->device->handle, "_TSP", NULL, &tmp); + if (ACPI_FAILURE(status)) + return false; - tz->trips.passive.tsp = tmp; + tz->trips.passive.passive_delay = tmp * 100; + } else { + tz->trips.passive.passive_delay = tmp; + } return true; } @@ -909,7 +914,7 @@ 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.passive_delay; trip->type = THERMAL_TRIP_PASSIVE; trip->temperature = acpi_thermal_temp(tz, acpi_trip->temp_dk);