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thermal: intel: x86_pkg_temp_thermal: Fix bogus trip temperature

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commit cf948c8e27 upstream.

The tj_max value obtained from the Intel TCC library are in Celsius,
whereas the thermal subsystem operates in milli-Celsius.

This discrepancy leads to incorrect trip temperature calculations.

Fix bogus trip temperature by converting tj_max to milli-Celsius Unit.

Fixes: 8ef0ca4a17 ("Merge back other thermal control material for 6.3.")
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Reported-by: zhang ning <zhangn1985@outlook.com>
Closes: https://lore.kernel.org/all/TY2PR01MB3786EF0FE24353026293F5ACCD97A@TY2PR01MB3786.jpnprd01.prod.outlook.com/
Tested-by: zhang ning <zhangn1985@outlook.com>
Cc: 6.3+ <stable@vger.kernel.org> # 6.3+
Link: https://patch.msgid.link/20250519070901.1031233-1-rui.zhang@intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Zhang Rui
2025-05-19 15:09:01 +08:00
committed by Greg Kroah-Hartman
parent f864656269
commit 7093887a11
1 changed files with 1 additions and 0 deletions
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drivers/thermal/intel/x86_pkg_temp_thermal.c
+1
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@@ -331,6 +331,7 @@ static int pkg_temp_thermal_device_add(unsigned int cpu)
tj_max = intel_tcc_get_tjmax(cpu);
if (tj_max < 0)
return tj_max;
tj_max *= 1000;
zonedev = kzalloc(sizeof(*zonedev), GFP_KERNEL);
if (!zonedev)