Fix SPINDLE_LASER_FREQUENCY (#20509)

Marlin/src/feature/spindle_laser.cpp

 #if ENABLED(MARLIN_DEV_MODE)
   cutter_frequency_t SpindleLaser::frequency;                         // PWM frequency setting; range: 2K - 50K
 #endif
-#define SPINDLE_LASER_PWM_OFF ((SPINDLE_LASER_PWM_INVERT) ? 255 : 0)
+#define SPINDLE_LASER_PWM_OFF TERN(SPINDLE_LASER_PWM_INVERT, 255, 0)
 
 //
 // Init the cutter to a safe OFF state
   /**
    * Set the cutter PWM directly to the given ocr value
    */
-  void SpindleLaser::set_ocr(const uint8_t ocr) {
-    WRITE(SPINDLE_LASER_ENA_PIN, SPINDLE_LASER_ACTIVE_STATE);         // Turn spindle on
-    analogWrite(pin_t(SPINDLE_LASER_PWM_PIN), ocr ^ SPINDLE_LASER_PWM_OFF);
+  void SpindleLaser::_set_ocr(const uint8_t ocr) {
     #if NEEDS_HARDWARE_PWM && SPINDLE_LASER_FREQUENCY
+      set_pwm_frequency(pin_t(SPINDLE_LASER_PWM_PIN), TERN(MARLIN_DEV_MODE, frequency, SPINDLE_LASER_FREQUENCY));
       set_pwm_duty(pin_t(SPINDLE_LASER_PWM_PIN), ocr ^ SPINDLE_LASER_PWM_OFF);
+    #else
+      analogWrite(pin_t(SPINDLE_LASER_PWM_PIN), ocr ^ SPINDLE_LASER_PWM_OFF);
     #endif
   }
+
+  void SpindleLaser::set_ocr(const uint8_t ocr) {
+    WRITE(SPINDLE_LASER_ENA_PIN,  SPINDLE_LASER_ACTIVE_STATE); // Cutter ON
+    _set_ocr(ocr);
+  }
+
   void SpindleLaser::ocr_off() {
-    WRITE(SPINDLE_LASER_ENA_PIN, !SPINDLE_LASER_ACTIVE_STATE);        // Turn spindle off
-    analogWrite(pin_t(SPINDLE_LASER_PWM_PIN), SPINDLE_LASER_PWM_OFF); // Only write low byte
+    WRITE(SPINDLE_LASER_ENA_PIN, !SPINDLE_LASER_ACTIVE_STATE); // Cutter OFF
+    _set_ocr(0);
   }
 #endif
 
       ocr_off();
       isReady = false;
     }
-    else if (enabled() || ENABLED(CUTTER_POWER_RELATIVE)) {
+    else if (ENABLED(CUTTER_POWER_RELATIVE) || enabled()) {
       set_ocr(power);
       isReady = true;
     }

Marlin/src/feature/spindle_laser.h

 
   #if ENABLED(SPINDLE_LASER_PWM)
 
+    private:
+
+    static void _set_ocr(const uint8_t ocr);
+
+    public:
+
     static void set_ocr(const uint8_t ocr);
     static inline void set_ocr_power(const uint8_t ocr) { power = ocr; set_ocr(ocr); }
     static void ocr_off();
         #elif CUTTER_UNIT_IS(RPM)
           2
         #else
-          #error "???"
+          #error "CUTTER_UNIT_IS(???)"
         #endif
       ));
     }

Marlin/src/lcd/menu/menu_spindle_laser.cpp

     #endif
 
     #if BOTH(MARLIN_DEV_MODE, HAL_CAN_SET_PWM_FREQ) && defined(SPINDLE_LASER_FREQUENCY)
-      EDIT_ITEM_FAST(CUTTER_MENU_FREQUENCY_TYPE, MSG_CUTTER_FREQUENCY, &cutter.frequency, 2000, 50000, cutter.refresh_frequency);
+      EDIT_ITEM_FAST(CUTTER_MENU_FREQUENCY_TYPE, MSG_CUTTER_FREQUENCY, &cutter.frequency, 2000, 80000, cutter.refresh_frequency);
     #endif
 
     END_MENU();