Re: [RFC PATCH v3] platform/x86: panasonic-laptop: Add platform_profile support

[Alex Yeo <alexyeo362@gmail.com>]

Hi Wu,

Thanks for testing the patch on a CF-SV1.
While the fan curve was observed to change, it is interesting to note 
that the CPU wattage appears to stay the same after an unlock.

Based on the data, pkg max temp is a bit low which does indicate the 
possible presence of a firmware level power limit.

If you do find the time to test,
may I ask if you have thermal and power data when running Windows?

Initial observations that have resulted in the creation of this patch 
series were made with a power meter (can be a watt meter from the wall 
or a watt meter from a USB-C PD monitor).

On the SR4, maximum on Linux was around 42W, while Windows had spikes 
that went up to ~60W (on the AC charger) or ~80W on a 100W USB-C PD 
charger. (in addition to the higher CPU temps with all settings on both 
Windows and Panasonic utilities set to performance)

Application of this patch on Linux with TLP set to performance resulted 
in similar observations when testing.

Additionally, may I ask if you have tested to see if thermald affects 
the fan or power setting?

Running it once in my case with the defaults has resulted in power being 
unlocked until next reboot. This change can be observed with both 
turbostat and a watt meter when plugged in.

The DMI quirk code is appreciated but I'd like to clarify the power 
unlock part first before including it.