[2.0.x] bltouch home refinements (#11397)

Just create  a better functions call logic flow

Marlin/src/module/motion.cpp

 
   // Homing Z towards the bed? Deploy the Z probe or endstop.
   #if HOMING_Z_WITH_PROBE
-    if (axis == Z_AXIS) {
-      if (DEPLOY_PROBE()) return;
-      #if ENABLED(BLTOUCH)
-        if (set_bltouch_deployed(true)) return;
-      #endif
-    }
+    if (axis == Z_AXIS && DEPLOY_PROBE()) return;
   #endif
 
   // Set flags for X, Y, Z motor locking
   #if ENABLED(DEBUG_LEVELING_FEATURE)
     if (DEBUGGING(LEVELING)) SERIAL_ECHOLNPGM("Home 1 Fast:");
   #endif
+
+  #if HOMING_Z_WITH_PROBE && ENABLED(BLTOUCH)
+    // BLTOUCH needs to be deployed every time
+    if (axis == Z_AXIS && set_bltouch_deployed(true)) return;
+  #endif
+
   do_homing_move(axis, 1.5f * max_length(axis) * axis_home_dir);
 
   #if HOMING_Z_WITH_PROBE && ENABLED(BLTOUCH)
     #endif
 
     do_homing_move(axis, 2 * bump, get_homing_bump_feedrate(axis));
+
+    #if HOMING_Z_WITH_PROBE && ENABLED(BLTOUCH)
+      // BLTOUCH needs to be stowed after trigger to rearm itself
+      if (axis == Z_AXIS) set_bltouch_deployed(false);
+    #endif
   }
 
   #if ENABLED(X_DUAL_ENDSTOPS) || ENABLED(Y_DUAL_ENDSTOPS) || ENABLED(Z_DUAL_ENDSTOPS)
 
   // Put away the Z probe
   #if HOMING_Z_WITH_PROBE
-    if (axis == Z_AXIS) {
-      #if ENABLED(BLTOUCH)
-        if (set_bltouch_deployed(false)) return;
-      #endif
-      if (STOW_PROBE()) return;
-    }
+    if (axis == Z_AXIS && STOW_PROBE()) return;
   #endif
 
   // Clear retracted status if homing the Z axis