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

Alex Yeo <[email protected]> Sat, 1 Aug 2026 11:13:14 +0800
Newsgroups dev.linux.lists.llvm,org.kernel.vger.linux-hwmon,org.kernel.vger.linux-kernel,org.kernel.vger.platform-driver-x86
Message-ID <[email protected]>
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