Refactor GPIO settings and update trackball layers

Updated GPIO configurations and modified scroll layers for trackball.

Author: barnacker

config/boards/shields/charybdis/charybdis_right.overlay

@@ -3,39 +3,40 @@
  *
  * SPDX-License-Identifier: MIT
  */
- 
+
 #include "charybdis.dtsi"
+#include <input/processors.dtsi>
 
 &default_transform {
     col-offset = <6>;
 }; 
 
 &kscan0 {
-	col-gpios
-		= <&gpio0 2 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
-		, <&gpio0 29 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
-		, <&gpio0 9 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
-		, <&gpio1 0  (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
-		, <&gpio0 11 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
-		, <&gpio1 4  (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
-		;
+    col-gpios
+        = <&gpio0 2 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+        , <&gpio0 29 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+        , <&gpio0 9 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+        , <&gpio1 0  (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+        , <&gpio0 11 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+        , <&gpio1 4  (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+        ;
 };
 
-// trackball bus
+// Trackball bus
 &pinctrl {
     spi0_default: spi0_default {
         group1 {
             psels = <NRF_PSEL(SPIM_SCK, 0, 8)>,
-                <NRF_PSEL(SPIM_MOSI, 0, 17)>,
-                <NRF_PSEL(SPIM_MISO, 0, 17)>;
+                    <NRF_PSEL(SPIM_MOSI, 0, 17)>,
+                    <NRF_PSEL(SPIM_MISO, 0, 17)>;
         };
     };
 
     spi0_sleep: spi0_sleep {
         group1 {
             psels = <NRF_PSEL(SPIM_SCK, 0, 8)>,
-                <NRF_PSEL(SPIM_MOSI, 0, 17)>,
-                <NRF_PSEL(SPIM_MISO, 0, 17)>;
+                    <NRF_PSEL(SPIM_MOSI, 0, 17)>,
+                    <NRF_PSEL(SPIM_MISO, 0, 17)>;
             low-power-enable;
         };
     };
@@ -55,23 +56,18 @@
         reg = <0>;
         spi-max-frequency = <2000000>;
         irq-gpios = <&gpio0 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
-        scroll-layers = <1>;
-        //snipe-layers = <2>;
-      // automouse-layer = <3>;
+        scroll-layers = <3>; // Changed to layer 3
     };
 };
 
-
-//RGB bus
-
-
-
-
 / {
     trackball_listener {
         compatible = "zmk,input-listener";
         device = <&trackball>;
+        input-processors = <&zip_xy_scaler 3 2>;
+        scroller {
+            layers = <3>; // Changed to layer 3
+            sensor-bindings = <&inc_dec_kp C_AC_SCROLL_UP C_AC_SCROLL_DOWN>;
+        };
     };
 };
-
-