[PATCH v6 0/2] Add support for sound profile switching and leverage for OnePlus 6 slider

[PATCH v6 0/2] Add support for sound profile switching and leverage for OnePlus 6 slider

[David Heidelberg via B4 Relay]

This code was tested for two years within the downstream Snapdragon 845 tree.
It is now perfectly integrated with feedbackd in the Phosh environment.

Changes in v6:
- Rebased again next-20250731, otherwise just a resent.
- Link to v5: https://lore.kernel.org/r/20250419-op6-tri-state-v5-0-443127078517@ixit.cz

Changes in v5:
- Dropped merged
  "Input: gpio-keys - add support for linux,input-value DTS property"
- Link to v4: https://lore.kernel.org/all/cover.1677022414.git.soyer@irl.hu/

Changes in v4:
- DTS: use default debounce-interval, order alphabetically
- Link to v3: https://lore.kernel.org/lkml/cover.1676850819.git.soyer@irl.hu/

Changes in v3:
- rename tri-state-key to alert-slider, fix DTS warnings,

Changes in v2:
- rebase to qcom/for-next
add SND_PROFILE_* identifiers to input-event-codes.h

base-commit: 02ac8d2a011b630481d959298a1cc76ca0717f3e
---
Gergo Koteles (2):
      Input: add ABS_SND_PROFILE
      arm64: dts: qcom: sdm845-oneplus: Add alert-slider

 Documentation/input/event-codes.rst                |  6 ++++
 .../arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi | 39 ++++++++++++++++++++--
 drivers/hid/hid-debug.c                            |  1 +
 include/uapi/linux/input-event-codes.h             |  9 +++++
 4 files changed, 53 insertions(+), 2 deletions(-)
---
base-commit: 84b92a499e7eca54ba1df6f6c6e01766025943f1
change-id: 20250419-op6-tri-state-ed1a05a11125

Best regards,
-- 
David Heidelberg <david@ixit.cz>

[PATCH v6 1/2] Input: add ABS_SND_PROFILE

[David Heidelberg via B4 Relay]

From: Gergo Koteles <soyer@irl.hu>

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>
Signed-off-by: David Heidelberg <david@ixit.cz>
---
 Documentation/input/event-codes.rst    | 6 ++++++
 drivers/hid/hid-debug.c                | 1 +
 include/uapi/linux/input-event-codes.h | 9 +++++++++
 3 files changed, 16 insertions(+)

diff --git a/Documentation/input/event-codes.rst b/Documentation/input/event-codes.rst
index b4557462edd7b3fef9e9cd6c2c3cb2d05bb531ab..d43336e64d6aa4fe8a41b7e9947f4f214df6e1ab 100644
--- a/Documentation/input/event-codes.rst
+++ b/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
diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index 7107071c7c516af48c0c5fc1206c1e01bae3889f..c58500d8b94b581e41ae098d6ce99db7783986b7 100644
--- a/drivers/hid/hid-debug.c
+++ b/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",
diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
index 08cb157ab59364a41ac425fc9a4ea8eb2fae0e86..f443f61f9bb8e3c212da522d9b99a386a13c4475 100644
--- a/include/uapi/linux/input-event-codes.h
+++ b/include/uapi/linux/input-event-codes.h
@@ -875,6 +875,7 @@
 
 #define ABS_VOLUME		0x20
 #define ABS_PROFILE		0x21
+#define ABS_SND_PROFILE		0x22
 
 #define ABS_MISC		0x28
 
@@ -984,4 +985,12 @@
 #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

-- 
2.50.1

[PATCH v6 2/2] arm64: dts: qcom: sdm845-oneplus: Add alert-slider

[David Heidelberg via B4 Relay]

From: Gergo Koteles <soyer@irl.hu>

The alert-slider is a tri-state sound profile switch found on the
OnePlus 6, Android maps the states to "silent", "vibrate" and "ring".
Expose them as ABS_SND_PROFILE events.
The previous GPIO numbers were wrong. Update them to the correct ones.

Co-developed-by: Casey Connolly <casey@connolly.tech>
Signed-off-by: Casey Connolly <casey@connolly.tech>
Signed-off-by: Gergo Koteles <soyer@irl.hu>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: David Heidelberg <david@ixit.cz>
---
 .../arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi | 39 ++++++++++++++++++++--
 1 file changed, 37 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
index b118d666e535a433f44b66c71b36e55df2ce5c80..242c78828992f9fbb384b690352660a496b22411 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
@@ -21,6 +21,41 @@
 /delete-node/ &rmtfs_mem;
 
 / {
+	alert-slider {
+		compatible = "gpio-keys";
+		label = "Alert slider";
+
+		pinctrl-0 = <&alert_slider_default>;
+		pinctrl-names = "default";
+
+		switch-top {
+			label = "Silent";
+			linux,input-type = <EV_ABS>;
+			linux,code = <ABS_SND_PROFILE>;
+			linux,input-value = <SND_PROFILE_SILENT>;
+			gpios = <&tlmm 126 GPIO_ACTIVE_LOW>;
+			linux,can-disable;
+		};
+
+		switch-middle {
+			label = "Vibrate";
+			linux,input-type = <EV_ABS>;
+			linux,code = <ABS_SND_PROFILE>;
+			linux,input-value = <SND_PROFILE_VIBRATE>;
+			gpios = <&tlmm 52 GPIO_ACTIVE_LOW>;
+			linux,can-disable;
+		};
+
+		switch-bottom {
+			label = "Ring";
+			linux,input-type = <EV_ABS>;
+			linux,code = <ABS_SND_PROFILE>;
+			linux,input-value = <SND_PROFILE_RING>;
+			gpios = <&tlmm 24 GPIO_ACTIVE_LOW>;
+			linux,can-disable;
+		};
+	};
+
 	aliases {
 		serial0 = &uart9;
 		serial1 = &uart6;
@@ -799,8 +834,8 @@ hall_sensor_default: hall-sensor-default-state {
 		bias-disable;
 	};
 
-	tri_state_key_default: tri-state-key-default-state {
-		pins = "gpio40", "gpio42", "gpio26";
+	alert_slider_default: alert-slider-default-state {
+		pins = "gpio126", "gpio52", "gpio24";
 		function = "gpio";
 		drive-strength = <2>;
 		bias-disable;

-- 
2.50.1