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Documentation: laptops: Update documentation for uniwill laptops

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Adds short description for two new sysfs entries, ctgp_offset and
usb_c_power_priority, to the documentation of uniwill laptops.

Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Link: https://patch.msgid.link/20260324203413.454361-6-wse@tuxedocomputers.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This commit is contained in:
Werner Sembach
2026-03-24 21:32:12 +01:00
committed by Ilpo Järvinen
parent a5ee4c959b
commit 9ec6bf62cf
2 changed files with 39 additions and 0 deletions
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27
Documentation/ABI/testing/sysfs-driver-uniwill-laptop
View File

@@ -51,3 +51,30 @@ Description:
Reading this file returns the current status of the breathing animation
functionality.
What: /sys/bus/platform/devices/INOU0000:XX/ctgp_offset
Date: January 2026
KernelVersion: 7.0
Contact: Werner Sembach <wse@tuxedocomputers.com>
Description:
Allows userspace applications to set the configurable TGP offset on top of the base
TGP. Base TGP and max TGP and therefore the max cTGP offset are device specific.
Note that setting the maximum cTGP leaves no window open for Dynamic Boost as
Dynamic Boost also can not go over max TGP. Setting the cTGP to maximum is
effectively disabling Dynamic Boost and telling the device to always prioritize the
GPU over the CPU.
Reading this file returns the current configurable TGP offset.
What: /sys/bus/platform/devices/INOU0000:XX/usb_c_power_priority
Date: February 2026
KernelVersion: 7.1
Contact: Werner Sembach <wse@tuxedocomputers.com>
Description:
Allows userspace applications to choose the USB-C power distribution profile between
one that offers a bigger share of the power to the battery and one that offers more
of it to the CPU. Writing "charging"/"performance" into this file selects the
respective profile.
Reading this file returns the profile names with the currently active one in
brackets.

12
Documentation/admin-guide/laptops/uniwill-laptop.rst
View File

@@ -50,6 +50,10 @@ between 1 and 100 percent are supported.
Additionally the driver signals the presence of battery charging issues through the standard
``health`` power supply sysfs attribute.
It also lets you set whether a USB-C power source should prioritise charging the battery or
delivering immediate power to the cpu. See Documentation/ABI/testing/sysfs-driver-uniwill-laptop for
details.
Lightbar
--------
@@ -58,3 +62,11 @@ LED class device. The default name of this LED class device is ``uniwill:multico
See Documentation/ABI/testing/sysfs-driver-uniwill-laptop for details on how to control the various
animation modes of the lightbar.
Configurable TGP
----------------
The ``uniwill-laptop`` driver allows to set the configurable TGP for devices with NVIDIA GPUs that
allow it.
See Documentation/ABI/testing/sysfs-driver-uniwill-laptop for details.