Messages in this thread Patch in this message | | | From | Sumit Gupta <> | Subject | [Patch v5 1/2] ACPI: thermal: Add Thermal fast Sampling Period (_TFP) support | Date | Sat, 14 Oct 2023 16:24:25 +0530 |
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From: Jeff Brasen <jbrasen@nvidia.com>
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 <jbrasen@nvidia.com> Signed-off-by: Sumit Gupta <sumitg@nvidia.com> --- 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 d98ff69303b3..a91e3d566858 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 { @@ -404,11 +404,16 @@ 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; } @@ -904,7 +909,7 @@ 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); -- 2.17.1
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