diff options
| author | Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> | 2025-04-28 17:01:10 -0700 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2025-05-07 21:34:39 +0200 |
| commit | fdccdb6578991b2ba770390957ca04c59f9bfff6 (patch) | |
| tree | 767658c642f9e07f7b3da3f95232dfed279933e7 | |
| parent | 579daefbed647a19a2d56f06c39ae12543e1edba (diff) | |
thermal: int340x: processor_thermal: Platform temperature control documentation
Update documentation of attributes for platform temperature control.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/20250429000110.236243-4-srinivas.pandruvada@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| -rw-r--r-- | Documentation/driver-api/thermal/intel_dptf.rst | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/driver-api/thermal/intel_dptf.rst b/Documentation/driver-api/thermal/intel_dptf.rst index 8fb8c5b2d685..ec5769accae0 100644 --- a/Documentation/driver-api/thermal/intel_dptf.rst +++ b/Documentation/driver-api/thermal/intel_dptf.rst @@ -191,6 +191,27 @@ ABI. User space can specify any one of the available workload type using this interface. +:file:`/sys/bus/pci/devices/0000\:00\:04.0/ptc_0_control` +:file:`/sys/bus/pci/devices/0000\:00\:04.0/ptc_1_control` +:file:`/sys/bus/pci/devices/0000\:00\:04.0/ptc_2_control` + +All these controls needs admin privilege to update. + +``enable`` (RW) + 1 for enable, 0 for disable. Shows the current enable status of + platform temperature control feature. User space can enable/disable + hardware controls. + +``temperature_target`` (RW) + Update a new temperature target in milli degree celsius for hardware to + use for the temperature control. + +Given that this is platform temperature control, it is expected that a +single user-level manager owns and manages the controls. If multiple +user-level software applications attempt to write different targets, it +can lead to unexpected behavior. + + DPTF Processor thermal RFIM interface -------------------------------------------- |