linux-kernel - [PATCH v8 05/14] ABI: testing: sysfs-class-oxp: add tt

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Message-ID: <20250322103606.680401-6-lkml@antheas.dev>
Date: Sat, 22 Mar 2025 11:35:57 +0100
From: Antheas Kapenekakis <lkml@...heas.dev>
To: platform-driver-x86@...r.kernel.org
Cc: linux-hwmon@...r.kernel.org,
	linux-doc@...r.kernel.org,
	linux-pm@...r.kernel.org,
	Guenter Roeck <linux@...ck-us.net>,
	Jean Delvare <jdelvare@...e.com>,
	Jonathan Corbet <corbet@....net>,
	Joaquin Ignacio Aramendia <samsagax@...il.com>,
	Derek J Clark <derekjohn.clark@...il.com>,
	Kevin Greenberg <kdgreenberg234@...tonmail.com>,
	Joshua Tam <csinaction@...me>,
	Parth Menon <parthasarathymenon@...il.com>,
	Eileen <eileen@...-netbook.com>,
	linux-kernel@...r.kernel.org,
	sre@...nel.org,
	linux@...ssschuh.net,
	ilpo.jarvinen@...ux.intel.com,
	hdegoede@...hat.com,
	mario.limonciello@....com,
	Antheas Kapenekakis <lkml@...heas.dev>
Subject: [PATCH v8 05/14] ABI: testing: sysfs-class-oxp: add tt_led attribute
 documentation

Adds documentation about the tt_led attribute of OneXPlayer devices
to the sysfs-class-oxp ABI documentation.

Reviewed-by: Thomas Weißschuh <linux@...ssschuh.net>
Reviewed-by: Derek J. Clark <derekjohn.clark@...il.com>
Signed-off-by: Antheas Kapenekakis <lkml@...heas.dev>
---
 Documentation/ABI/testing/sysfs-platform-oxp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-platform-oxp b/Documentation/ABI/testing/sysfs-platform-oxp
index 091269ab2c8c4..ccf8e5902cf86 100644
--- a/Documentation/ABI/testing/sysfs-platform-oxp
+++ b/Documentation/ABI/testing/sysfs-platform-oxp
@@ -11,3 +11,15 @@ Description:
 		shortcut over the AT keyboard of the device. In addition,
 		using this setting is a prerequisite for PWM control for most
 		newer models (otherwise it NOOPs).
+
+What:		/sys/devices/platform/<platform>/tt_led
+Date:		Feb 2025
+KernelVersion:	6.15
+Contact:	"Antheas Kapenekakis" <lkml@...heas.dev>
+Description:
+		Some OneXPlayer devices (e.g., X1 series) feature a little LED
+		nested in the Turbo button. This LED is illuminated when the
+		device is in the higher TDP mode (e.g., 25W). Once tt_toggle
+		is engaged, this LED is left dangling to its last state. This
+		attribute allows userspace to control the LED state manually
+		(either with 1 or 0). Only a subset of devices contain this LED.
-- 
2.48.1