G425 — Auto-calibrate Backlash and Nozzle Offsets (#13050)

Marlin/src/module/endstops.cpp

@@ -218,6 +218,16 @@ void Endstops::init() {
     #endif
   #endif
 
+  #if HAS_CALIBRATION_PIN
+    #if ENABLED(CALIBRATION_PIN_PULLUP)
+      SET_INPUT_PULLUP(CALIBRATION_PIN);
+    #elif ENABLED(CALIBRATION_PIN_PULLDOWN)
+      SET_INPUT_PULLDOWN(CALIBRATION_PIN);
+    #else
+      SET_INPUT(CALIBRATION_PIN);
+    #endif
+  #endif
+
   #if ENABLED(Z_MIN_PROBE_ENDSTOP)
     #if ENABLED(ENDSTOPPULLUP_ZMIN_PROBE)
       SET_INPUT_PULLUP(Z_MIN_PROBE_PIN);