@@ -7,7 +7,7 @@
/dts-v1/;
-#include <dt-bindings/input/linux-event-codes.h>
+#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
#include "sdm845.dtsi"
@@ -26,7 +26,7 @@ chosen {
stdout-path = "serial0:115200n8";
};
- gpio-keys {
+ volume-keys {
compatible = "gpio-keys";
label = "Volume keys";
autorepeat;
@@ -49,6 +49,41 @@ vol-up {
};
};
+ tri-state-key {
+ compatible = "gpio-keys";
+ label = "Tri-state key";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&tri_state_key_default>;
+
+ state-top {
+ label = "Tri-state key top";
+ linux,input-type = <EV_SW>;
+ linux,code = <SW_PROG1>;
+ gpios = <&tlmm 126 GPIO_ACTIVE_LOW>;
+ debounce-interval = <50>;
+ linux,can-disable;
+ };
+
+ state-middle {
+ label = "Tri-state key middle";
+ linux,input-type = <EV_SW>;
+ linux,code = <SW_PROG2>;
+ gpios = <&tlmm 52 GPIO_ACTIVE_LOW>;
+ debounce-interval = <50>;
+ linux,can-disable;
+ };
+
+ state-bottom {
+ label = "Tri-state key bottom";
+ linux,input-type = <EV_SW>;
+ linux,code = <SW_PROG3>;
+ gpios = <&tlmm 24 GPIO_ACTIVE_LOW>;
+ debounce-interval = <50>;
+ linux,can-disable;
+ };
+ };
+
reserved-memory {
/* The rmtfs_mem needs to be guarded due to "XPU limitations"
* it is otherwise possible for an allocation adjacent to the
@@ -607,9 +642,10 @@ &usb_1_hsphy {
&tlmm {
gpio-reserved-ranges = <0 4>, <81 4>;
- tri_state_key_default: tri_state_key_default {
+ /* The GPIOs have a hardware pullup */
+ tri_state_key_default: tri-state-pins {
mux {
- pins = "gpio40", "gpio42", "gpio26";
+ pins = "gpio126", "gpio52", "gpio24";
function = "gpio";
drive-strength = <2>;
bias-disable;
The tri-state-key is a 3-state mute slider found on the OnePlus 6. The default software maps the states to "mute", "vibrate" and "ring", expose them as generic switch events so that they can be configured by userspace. Signed-off-by: Caleb Connolly <caleb@connolly.tech> --- .../boot/dts/qcom/sdm845-oneplus-common.dtsi | 44 +++++++++++++++++-- 1 file changed, 40 insertions(+), 4 deletions(-) -- 2.36.1