From: Srinivas Pandruvada Date: Tue, 29 Apr 2025 00:01:10 +0000 (-0700) Subject: thermal: int340x: processor_thermal: Platform temperature control documentation X-Git-Tag: v6.16-rc1~162^2~3^2 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fdccdb6578991b2ba770390957ca04c59f9bfff6;p=thirdparty%2Fkernel%2Flinux.git thermal: int340x: processor_thermal: Platform temperature control documentation Update documentation of attributes for platform temperature control. Signed-off-by: Srinivas Pandruvada Link: https://patch.msgid.link/20250429000110.236243-4-srinivas.pandruvada@linux.intel.com Signed-off-by: Rafael J. Wysocki --- diff --git a/Documentation/driver-api/thermal/intel_dptf.rst b/Documentation/driver-api/thermal/intel_dptf.rst index 8fb8c5b2d6853..ec5769accae0f 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 --------------------------------------------