Syntax tweaks

Marlin/Marlin_main.cpp

         case TIMER1A: case TIMER1B:             //_SET_CS(1, val);
                                                   break;
       #endif
-      #ifdef TCCR2
-        case TIMER2: case TIMER2:                 _SET_CS(2, val); break;
-      #endif
-      #ifdef TCCR2A
-        case TIMER2A: case TIMER2B:               _SET_CS(2, val); break;
+      #if defined(TCCR2) || defined(TCCR2A)
+        #ifdef TCCR2
+          case TIMER2:
+        #endif
+        #ifdef TCCR2A
+          case TIMER2A: case TIMER2B:
+        #endif
+                                                  _SET_CS(2, val); break;
       #endif
       #ifdef TCCR3A
         case TIMER3A: case TIMER3B: case TIMER3C: _SET_CS(3, val); break;

Marlin/planner.cpp

   // Calculate and limit speed in mm/sec for each axis
   float current_speed[NUM_AXIS], speed_factor = 1.0; // factor <1 decreases speed
   LOOP_XYZE(i) {
-    const float cs = FABS(current_speed[i] = delta_mm[i] * inverse_mm_s);
+    const float cs = FABS((current_speed[i] = delta_mm[i] * inverse_mm_s));
     #if ENABLED(DISTINCT_E_FACTORS)
       if (i == E_AXIS) i += extruder;
     #endif