🔧 Use multi-XYZ 'STOP' pins for MIN/MAX (MarlinFirmware#24855)

Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>

Marlin/src/inc/Conditionals_post.h

@@ -930,6 +930,12 @@
  #define X2_MAX_ENDSTOP_INVERTING Z_MAX_ENDSTOP_INVERTING
  #endif
  #endif
+ #if !PIN_EXISTS(X2_MAX)
+ #undef X2_MAX_PIN
+ #if PIN_EXISTS(X2_STOP)
+ #define X2_MAX_PIN X2_STOP_PIN
+ #endif
+ #endif
  #else
  #ifndef X2_MIN_ENDSTOP_INVERTING
  #if X2_USE_ENDSTOP == _XMIN_
@@ -946,6 +952,12 @@
  #define X2_MIN_ENDSTOP_INVERTING Z_MAX_ENDSTOP_INVERTING
  #endif
  #endif
+ #if !PIN_EXISTS(X2_MIN)
+ #undef X2_MIN_PIN
+ #if PIN_EXISTS(X2_STOP)
+ #define X2_MIN_PIN X2_STOP_PIN
+ #endif
+ #endif
  #endif
  #ifndef X2_MAX_ENDSTOP_INVERTING
  #define X2_MAX_ENDSTOP_INVERTING false
@@ -975,6 +987,12 @@
  #define Y2_MAX_ENDSTOP_INVERTING Z_MAX_ENDSTOP_INVERTING
  #endif
  #endif
+ #if !PIN_EXISTS(Y2_MAX)
+ #undef Y2_MAX_PIN
+ #if PIN_EXISTS(Y2_STOP)
+ #define Y2_MAX_PIN Y2_STOP_PIN
+ #endif
+ #endif
  #else
  #ifndef Y2_MIN_ENDSTOP_INVERTING
  #if Y2_USE_ENDSTOP == _XMIN_
@@ -991,6 +1009,12 @@
  #define Y2_MIN_ENDSTOP_INVERTING Z_MAX_ENDSTOP_INVERTING
  #endif
  #endif
+ #if !PIN_EXISTS(Y2_MIN)
+ #undef Y2_MIN_PIN
+ #if PIN_EXISTS(Y2_STOP)
+ #define Y2_MIN_PIN Y2_STOP_PIN
+ #endif
+ #endif
  #endif
  #ifndef Y2_MAX_ENDSTOP_INVERTING
  #define Y2_MAX_ENDSTOP_INVERTING false
@@ -1021,6 +1045,12 @@
  #define Z2_MAX_ENDSTOP_INVERTING Z_MAX_ENDSTOP_INVERTING
  #endif
  #endif
+ #if !PIN_EXISTS(Z2_MAX)
+ #undef Z2_MAX_PIN
+ #if PIN_EXISTS(Z2_STOP)
+ #define Z2_MAX_PIN Z2_STOP_PIN
+ #endif
+ #endif
  #else
  #ifndef Z2_MIN_ENDSTOP_INVERTING
  #if Z2_USE_ENDSTOP == _XMIN_
@@ -1037,6 +1067,12 @@
  #define Z2_MIN_ENDSTOP_INVERTING Z_MAX_ENDSTOP_INVERTING
  #endif
  #endif
+ #if !PIN_EXISTS(Z2_MIN)
+ #undef Z2_MIN_PIN
+ #if PIN_EXISTS(Z2_STOP)
+ #define Z2_MIN_PIN Z2_STOP_PIN
+ #endif
+ #endif
  #endif
  #ifndef Z2_MAX_ENDSTOP_INVERTING
  #define Z2_MAX_ENDSTOP_INVERTING false
@@ -1062,6 +1098,12 @@
  #define Z3_MAX_ENDSTOP_INVERTING Z_MAX_ENDSTOP_INVERTING
  #endif
  #endif
+ #if !PIN_EXISTS(Z3_MAX)
+ #undef Z3_MAX_PIN
+ #if PIN_EXISTS(Z3_STOP)
+ #define Z3_MAX_PIN Z3_STOP_PIN
+ #endif
+ #endif
  #else
  #ifndef Z3_MIN_ENDSTOP_INVERTING
  #if Z3_USE_ENDSTOP == _XMIN_
@@ -1078,6 +1120,12 @@
  #define Z3_MIN_ENDSTOP_INVERTING Z_MAX_ENDSTOP_INVERTING
  #endif
  #endif
+ #if !PIN_EXISTS(Z3_MIN)
+ #undef Z3_MIN_PIN
+ #if PIN_EXISTS(Z3_STOP)
+ #define Z3_MIN_PIN Z3_STOP_PIN
+ #endif
+ #endif
  #endif
  #ifndef Z3_MAX_ENDSTOP_INVERTING
  #define Z3_MAX_ENDSTOP_INVERTING false
@@ -1104,6 +1152,12 @@
  #define Z4_MAX_ENDSTOP_INVERTING Z_MAX_ENDSTOP_INVERTING
  #endif
  #endif
+ #if !PIN_EXISTS(Z4_MAX)
+ #undef Z4_MAX_PIN
+ #if PIN_EXISTS(Z4_STOP)
+ #define Z4_MAX_PIN Z4_STOP_PIN
+ #endif
+ #endif
  #else
  #ifndef Z4_MIN_ENDSTOP_INVERTING
  #if Z4_USE_ENDSTOP == _XMIN_
@@ -1120,6 +1174,12 @@
  #define Z4_MIN_ENDSTOP_INVERTING Z_MAX_ENDSTOP_INVERTING
  #endif
  #endif
+ #if !PIN_EXISTS(Z4_MIN)
+ #undef Z4_MIN_PIN
+ #if PIN_EXISTS(Z4_STOP)
+ #define Z4_MIN_PIN Z4_STOP_PIN
+ #endif
+ #endif
  #endif
  #ifndef Z4_MAX_ENDSTOP_INVERTING
  #define Z4_MAX_ENDSTOP_INVERTING false