⚡️ Home Z (and maybe XY) at the start of G35 (#22060)

Marlin/src/gcode/bedlevel/G35.cpp

@@ -91,8 +91,8 @@ void GcodeSuite::G35() {
   // Disable duplication mode on homing
   TERN_(HAS_DUPLICATION_MODE, set_duplication_enabled(false));
 
-  // Home all before this procedure
-  home_all_axes();
+  // Home only Z axis when X and Y is trusted, otherwise all axes, if needed before this procedure
+  if (!all_axes_trusted()) process_subcommands_now_P(PSTR("G28Z"));
 
   bool err_break = false;
 

Marlin/src/gcode/calibrate/G34.cpp

@@ -39,7 +39,7 @@
 void GcodeSuite::G34() {
 
   // Home before the alignment procedure
-  if (!all_axes_trusted()) home_all_axes();
+  home_if_needed();
 
   TERN_(HAS_LEVELING, TEMPORARY_BED_LEVELING_STATE(false));
 

Marlin/src/gcode/calibrate/G34_M422.cpp

@@ -167,7 +167,7 @@ void GcodeSuite::G34() {
       ));
 
       // Home before the alignment procedure
-      if (!all_axes_trusted()) home_all_axes();
+      home_if_needed();
 
       // Move the Z coordinate realm towards the positive - dirty trick
       current_position.z += z_probe * 0.5f;

Marlin/src/gcode/feature/pause/M600.cpp

@@ -99,7 +99,7 @@ void GcodeSuite::M600() {
 
   #if ENABLED(HOME_BEFORE_FILAMENT_CHANGE)
     // If needed, home before parking for filament change
-    if (!all_axes_trusted()) home_all_axes(true);
+    home_if_needed(true);
   #endif
 
   #if HAS_MULTI_EXTRUDER