Drop C-style 'void' argument

Marlin/src/feature/I2CPositionEncoder.h

@@ -168,15 +168,15 @@ class I2CPositionEncoder {
 
     bool passes_test(const bool report);
 
-    bool test_axis(void);
+    bool test_axis();
 
-    FORCE_INLINE int get_error_count(void) { return errorCount; }
+    FORCE_INLINE int get_error_count() { return errorCount; }
     FORCE_INLINE void set_error_count(const int newCount) { errorCount = newCount; }
 
     FORCE_INLINE uint8_t get_address() { return i2cAddress; }
     FORCE_INLINE void set_address(const uint8_t addr) { i2cAddress = addr; }
 
-    FORCE_INLINE bool get_active(void) { return active; }
+    FORCE_INLINE bool get_active() { return active; }
     FORCE_INLINE void set_active(const bool a) { active = a; }
 
     FORCE_INLINE void set_inverted(const bool i) { invert = i; }
@@ -219,10 +219,10 @@ class I2CPositionEncodersMgr {
 
   public:
 
-    static void init(void);
+    static void init();
 
     // consider only updating one endoder per call / tick if encoders become too time intensive
-    static void update(void) { LOOP_PE(i) encoders[i].update(); }
+    static void update() { LOOP_PE(i) encoders[i].update(); }
 
     static void homed(const AxisEnum axis) {
       LOOP_PE(i)

Marlin/src/feature/dac/dac_dac084s085.h

@@ -24,7 +24,7 @@
 class dac084s085 {
   public:
     dac084s085();
-    static void begin(void);
+    static void begin();
     static void setValue(const uint8_t channel, const uint8_t value);
   private:
     static void cshigh();

Marlin/src/feature/fanmux.cpp

@@ -41,7 +41,7 @@ void fanmux_switch(const uint8_t e) {
   #endif
 }
 
-void fanmux_init(void) {
+void fanmux_init() {
   SET_OUTPUT(FANMUX0_PIN);
   #if PIN_EXISTS(FANMUX1)
     SET_OUTPUT(FANMUX1_PIN);

Marlin/src/feature/fanmux.h

@@ -26,4 +26,4 @@
  */
 
 extern void fanmux_switch(const uint8_t e);
-extern void fanmux_init(void);
+extern void fanmux_init();

Marlin/src/feature/leds/tempstat.cpp

@@ -31,7 +31,7 @@
 #include "tempstat.h"
 #include "../../module/temperature.h"
 
-void handle_status_leds(void) {
+void handle_status_leds() {
   static int8_t old_red = -1;  // Invalid value to force LED initialization
   static millis_t next_status_led_update_ms = 0;
   if (ELAPSED(millis(), next_status_led_update_ms)) {

Marlin/src/feature/leds/tempstat.h

@@ -25,4 +25,4 @@
  * Marlin general RGB LED support
  */
 
-void handle_status_leds(void);
+void handle_status_leds();

Marlin/src/feature/prusa_MMU2/mmu2.cpp

@@ -533,7 +533,7 @@ void MMU2::command(const uint8_t mmu_cmd) {
 /**
  * Wait for response from MMU
  */
-bool MMU2::get_response(void) {
+bool MMU2::get_response() {
   while (cmd != MMU_CMD_NONE) idle();
 
   while (!ready) {

Marlin/src/feature/prusa_MMU2/mmu2.h

@@ -61,7 +61,7 @@ private:
   static void check_version();
 
   static void command(const uint8_t cmd);
-  static bool get_response(void);
+  static bool get_response();
   static void manage_response(const bool move_axes, const bool turn_off_nozzle);
 
   #if HAS_LCD_MENU && ENABLED(MMU2_MENUS)

Marlin/src/feature/touch/xpt2046.cpp

@@ -43,7 +43,7 @@
 XPT2046 touch;
 extern int8_t encoderDiff;
 
-void XPT2046::init(void) {
+void XPT2046::init() {
   SET_INPUT(TOUCH_MISO_PIN);
   SET_OUTPUT(TOUCH_MOSI_PIN);
   SET_OUTPUT(TOUCH_SCK_PIN);

Marlin/src/feature/touch/xpt2046.h

@@ -40,11 +40,11 @@ enum XPTCoordinate : uint8_t {
 
 class XPT2046 {
 public:
-  static void init(void);
+  static void init();
   static uint8_t read_buttons();
   bool getTouchPoint(uint16_t &x, uint16_t &y);
   static bool isTouched();
-  inline void waitForRelease(void) { while (isTouched()) { /* nada */ } }
+  inline void waitForRelease() { while (isTouched()) { /* nada */ } }
   inline void waitForTouch(uint16_t &x, uint16_t &y) { while (!getTouchPoint(x, y)) { /* nada */ } }
 private:
   static uint16_t getInTouch(const XPTCoordinate coordinate);