linux-kernel - [PATCH v6 04/14] ABI: testing: sysfs-class-oxp: add missing documentation

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Message-ID: <20250319175512.27059-5-lkml@antheas.dev>
Date: Wed, 19 Mar 2025 18:54:59 +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 v6 04/14] ABI: testing: sysfs-class-oxp: add missing
 documentation

Add missing documentation about the tt_toggle attribute that was
added in kernel 6.5.

Fixes: be144ee491272 ("hwmon: (oxp-sensors) Add tt_toggle attribute on supported boards")
Signed-off-by: Antheas Kapenekakis <lkml@...heas.dev>
---
 Documentation/ABI/testing/sysfs-platform-oxp | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-platform-oxp

diff --git a/Documentation/ABI/testing/sysfs-platform-oxp b/Documentation/ABI/testing/sysfs-platform-oxp
new file mode 100644
index 0000000000000..091269ab2c8c4
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-platform-oxp
@@ -0,0 +1,13 @@
+What:		/sys/devices/platform/<platform>/tt_toggle
+Date:		Jun 2023
+KernelVersion:	6.5
+Contact:	"Antheas Kapenekakis" <lkml@...heas.dev>
+Description:
+		Takeover TDP controls from the device. OneXPlayer devices have a
+		turbo button that can be used to switch between two TDP modes
+		(usually 15W and 25W). By setting this attribute to 1, this
+		functionality is disabled, handing TDP control over to (Windows)
+		userspace software and the Turbo button turns into a keyboard
+		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).
-- 
2.48.1