linux-kernel - [PATCH AUTOSEL 4.19 18/19] Input: allocate keycode for Display refresh rate toggle

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Message-ID: <20240329125100.3094358-18-sashal@kernel.org>
Date: Fri, 29 Mar 2024 08:50:50 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Gergo Koteles <soyer@....hu>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
	Sasha Levin <sashal@...nel.org>,
	linux-input@...r.kernel.org
Subject: [PATCH AUTOSEL 4.19 18/19] Input: allocate keycode for Display refresh rate toggle

From: Gergo Koteles <soyer@....hu>

[ Upstream commit cfeb98b95fff25c442f78a6f616c627bc48a26b7 ]

Newer Lenovo Yogas and Legions with 60Hz/90Hz displays send a wmi event
when Fn + R is pressed. This is intended for use to switch between the
two refresh rates.

Allocate a new KEY_REFRESH_RATE_TOGGLE keycode for it.

Signed-off-by: Gergo Koteles <soyer@....hu>
Acked-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
Link: https://lore.kernel.org/r/15a5d08c84cf4d7b820de34ebbcf8ae2502fb3ca.1710065750.git.soyer@irl.hu
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 include/uapi/linux/input-event-codes.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
index 1c011379a9967..76b524895dea6 100644
--- a/include/uapi/linux/input-event-codes.h
+++ b/include/uapi/linux/input-event-codes.h
@@ -596,6 +596,7 @@
 
 #define KEY_ALS_TOGGLE		0x230	/* Ambient light sensor */
 #define KEY_ROTATE_LOCK_TOGGLE	0x231	/* Display rotation lock */
+#define KEY_REFRESH_RATE_TOGGLE	0x232	/* Display refresh rate toggle */
 
 #define KEY_BUTTONCONFIG		0x240	/* AL Button Configuration */
 #define KEY_TASKMANAGER		0x241	/* AL Task/Project Manager */
-- 
2.43.0