Input: add ABS_SND_PROFILE

ABS_SND_PROFILE used to describe the state of a multi-value sound profile
switch. This will be used for the alert-slider on OnePlus phones or other
phones.

Profile values added as SND_PROFLE_(SILENT|VIBRATE|RING) identifiers
to input-event-codes.h so they can be used from DTS.

Signed-off-by: Gergo Koteles <soyer@irl.hu>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Tested-by: Guido Günther <agx@sigxcpu.org> # oneplus,fajita & oneplus,enchilada
Reviewed-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: David Heidelberg <david@ixit.cz>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Link: https://patch.msgid.link/20251113-op6-tri-state-v8-1-54073f3874bc@ixit.cz
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Documentation/input/event-codes.rst

@@ -241,6 +241,12 @@ A few EV_ABS codes have special meanings:
     emitted only when the selected profile changes, indicating the newly
     selected profile value.
 
+* ABS_SND_PROFILE:
+
+  - Used to describe the state of a multi-value sound profile switch.
+    An event is emitted only when the selected profile changes,
+    indicating the newly selected profile value.
+
 * ABS_MT_<name>:
 
   - Used to describe multitouch input events. Please see

drivers/hid/hid-debug.c

@@ -3513,6 +3513,7 @@ static const char *absolutes[ABS_CNT] = {
 	[ABS_DISTANCE] = "Distance",	[ABS_TILT_X] = "XTilt",
 	[ABS_TILT_Y] = "YTilt",		[ABS_TOOL_WIDTH] = "ToolWidth",
 	[ABS_VOLUME] = "Volume",	[ABS_PROFILE] = "Profile",
+	[ABS_SND_PROFILE] = "SoundProfile",
 	[ABS_MISC] = "Misc",
 	[ABS_MT_SLOT] = "MTSlot",
 	[ABS_MT_TOUCH_MAJOR] = "MTMajor",

include/uapi/linux/input-event-codes.h

@@ -891,6 +891,7 @@
 
 #define ABS_VOLUME		0x20
 #define ABS_PROFILE		0x21
+#define ABS_SND_PROFILE		0x22
 
 #define ABS_MISC		0x28
 
@@ -1000,4 +1001,12 @@
 #define SND_MAX			0x07
 #define SND_CNT			(SND_MAX+1)
 
+/*
+ * ABS_SND_PROFILE values
+ */
+
+#define SND_PROFILE_SILENT	0x00
+#define SND_PROFILE_VIBRATE	0x01
+#define SND_PROFILE_RING	0x02
+
 #endif