🚸 Simplify touchscreen calibration for SimUI (#23124)

Marlin/src/inc/SanityCheck.h

@@ -3652,8 +3652,8 @@ static_assert(_PLUS_TEST(4), "HOMING_FEEDRATE_MM_M values must be positive.");
 /**
  * Touch Screen Calibration
  */
-#if ENABLED(TFT_TOUCH_DEVICE_XPT2046) && DISABLED(TOUCH_SCREEN_CALIBRATION) \
-    && (!defined(TOUCH_CALIBRATION_X) || !defined(TOUCH_CALIBRATION_Y) || !defined(TOUCH_OFFSET_X) || !defined(TOUCH_OFFSET_Y))
+#if !MB(LINUX_RAMPS) && ENABLED(TFT_TOUCH_DEVICE_XPT2046) && DISABLED(TOUCH_SCREEN_CALIBRATION) \
+    && !(defined(TOUCH_CALIBRATION_X) && defined(TOUCH_CALIBRATION_Y) && defined(TOUCH_OFFSET_X) && defined(TOUCH_OFFSET_Y))
   #error "TOUCH_CALIBRATION_[XY] and TOUCH_OFFSET_[XY] are required for resistive touch screens with TOUCH_SCREEN_CALIBRATION disabled."
 #endif
 

Marlin/src/pins/linux/pins_RAMPS_LINUX.h

@@ -391,6 +391,7 @@
   #define BEEPER_PIN                          42
 
   #define TOUCH_CS_PIN                        33
+
   #define SD_DETECT_PIN                       41
 
   #define HAS_SPI_FLASH                        1
@@ -407,17 +408,47 @@
   #ifndef TFT_DRIVER
     #define TFT_DRIVER                    ST7796
   #endif
-  #ifndef XPT2046_X_CALIBRATION
-    #define XPT2046_X_CALIBRATION          63934
-  #endif
-  #ifndef XPT2046_Y_CALIBRATION
-    #define XPT2046_Y_CALIBRATION          63598
-  #endif
-  #ifndef XPT2046_X_OFFSET
-    #define XPT2046_X_OFFSET                  -1
-  #endif
-  #ifndef XPT2046_Y_OFFSET
-    #define XPT2046_Y_OFFSET                 -20
+  #ifndef TOUCH_SCREEN_CALIBRATION
+    #if ENABLED(TFT_RES_320x240)
+      #ifndef TOUCH_CALIBRATION_X
+        #define TOUCH_CALIBRATION_X        20525
+      #endif
+      #ifndef TOUCH_CALIBRATION_Y
+        #define TOUCH_CALIBRATION_Y        15335
+      #endif
+      #ifndef TOUCH_OFFSET_X
+        #define TOUCH_OFFSET_X                -1
+      #endif
+      #ifndef TOUCH_OFFSET_Y
+        #define TOUCH_OFFSET_Y                 0
+      #endif
+    #elif ENABLED(TFT_RES_480x272)
+      #ifndef TOUCH_CALIBRATION_X
+        #define TOUCH_CALIBRATION_X        30715
+      #endif
+      #ifndef TOUCH_CALIBRATION_Y
+        #define TOUCH_CALIBRATION_Y        17415
+      #endif
+      #ifndef TOUCH_OFFSET_X
+        #define TOUCH_OFFSET_X                 0
+      #endif
+      #ifndef TOUCH_OFFSET_Y
+        #define TOUCH_OFFSET_Y                -1
+      #endif
+    #elif ENABLED(TFT_RES_480x320)
+      #ifndef TOUCH_CALIBRATION_X
+        #define TOUCH_CALIBRATION_X        30595
+      #endif
+      #ifndef TOUCH_CALIBRATION_Y
+        #define TOUCH_CALIBRATION_Y        20415
+      #endif
+      #ifndef TOUCH_OFFSET_X
+        #define TOUCH_OFFSET_X                 2
+      #endif
+      #ifndef TOUCH_OFFSET_Y
+        #define TOUCH_OFFSET_Y                 1
+      #endif
+    #endif
   #endif
 
   #define BTN_BACK                            70