Re: [RFC PATCH v8] platform/x86: panasonic-laptop: add fan speed mode for newer models

From: Alex Yeo

Date: Fri Jul 31 2026 - 23:13:37 EST


Hello everyone,

Please disregard this patch.

What I have found is not just a fan control method, but a set of methods to control active and passive cooling policies for the cooling device + a way to cap processor power and unlock it.

The reverse engineering notes are still relevant, but I had clearly missed the part where the fan code is in proximity to the code that toggles the power limit.

Given this, I no longer think this belongs in thermal or hwmon. platform_profile appears to be the appropriate fit, although I will continue investigating.

Apologies for the confusion. I will redo the patch with further testing and data.

If I do move forward with this approach, I plan to submit this as a completely new patch instead since the current subject "add fan speed mode for newer models" no longer applies.

Thank you,
Alex