Drop C-style 'void' argument

Marlin/src/HAL/HAL_SAMD51/HAL.cpp

@@ -368,7 +368,7 @@ uint16_t HAL_adc_result;
 // ------------------------
 
 // HAL initialization task
-void HAL_init(void) {
+void HAL_init() {
   #if DMA_IS_REQUIRED
     dma_init();
   #endif
@@ -383,15 +383,15 @@ void HAL_init(void) {
 
 // HAL idle task
 /*
-void HAL_idletask(void) {
+void HAL_idletask() {
 }
 */
 
-void HAL_clear_reset_source(void) { }
+void HAL_clear_reset_source() { }
 
 #pragma push_macro("WDT")
 #undef WDT    // Required to be able to use '.bit.WDT'. Compiler wrongly replace struct field with WDT define
-uint8_t HAL_get_reset_source(void) {
+uint8_t HAL_get_reset_source() {
   RSTC_RCAUSE_Type resetCause;
 
   resetCause.reg = REG_RSTC_RCAUSE;
@@ -421,7 +421,7 @@ int freeMemory() {
 // ADC
 // ------------------------
 
-void HAL_adc_init(void) {
+void HAL_adc_init() {
   #if ADC_IS_REQUIRED
     memset(HAL_adc_results, 0xFF, sizeof(HAL_adc_results));                 // Fill result with invalid values
 
@@ -469,7 +469,7 @@ void HAL_adc_start_conversion(const uint8_t adc_pin) {
   HAL_adc_result = 0xFFFF;
 }
 
-uint16_t HAL_adc_get_result(void) {
+uint16_t HAL_adc_get_result() {
   return HAL_adc_result;
 }
 

Marlin/src/HAL/HAL_SAMD51/HAL.h

@@ -91,8 +91,8 @@ typedef int8_t pin_t;
 #define cli() __disable_irq()       // Disable interrupts
 #define sei() __enable_irq()        // Enable interrupts
 
-void HAL_clear_reset_source(void);  // clear reset reason
-uint8_t HAL_get_reset_source(void); // get reset reason
+void HAL_clear_reset_source();  // clear reset reason
+uint8_t HAL_get_reset_source(); // get reset reason
 
 //
 // EEPROM
@@ -107,14 +107,14 @@ extern uint16_t HAL_adc_result;     // result of last ADC conversion
 
 #define HAL_ANALOG_SELECT(pin)
 
-void HAL_adc_init(void);
+void HAL_adc_init();
 
 #define HAL_START_ADC(pin)  HAL_adc_start_conversion(pin)
 #define HAL_READ_ADC()      HAL_adc_result
 #define HAL_ADC_READY()     true
 
 void HAL_adc_start_conversion(const uint8_t adc_pin);
-uint16_t HAL_adc_get_result(void);
+uint16_t HAL_adc_get_result();
 
 //
 // Pin Map
@@ -131,10 +131,10 @@ void tone(const pin_t _pin, const unsigned int frequency, const unsigned long du
 void noTone(const pin_t _pin);
 
 // Enable hooks into idle and setup for HAL
-void HAL_init(void);
+void HAL_init();
 /*
 #define HAL_IDLETASK 1
-void HAL_idletask(void);
+void HAL_idletask();
 */
 
 //
@@ -144,7 +144,7 @@ FORCE_INLINE void _delay_ms(const int delay_ms) { delay(delay_ms); }
 
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wunused-function"
-int freeMemory(void);
+int freeMemory();
 #pragma GCC diagnostic pop
 
 #ifdef __cplusplus

Marlin/src/HAL/HAL_SAMD51/HAL_SPI.cpp

@@ -64,7 +64,7 @@
   // ------------------------
   // Hardware SPI
   // ------------------------
-  void spiBegin(void) {
+  void spiBegin() {
     spiInit(SPI_HALF_SPEED);
   }
 
@@ -92,7 +92,7 @@
    *
    * @details
    */
-  uint8_t spiRec(void) {
+  uint8_t spiRec() {
     sdSPI.beginTransaction(spiConfig);
     uint8_t returnByte = sdSPI.transfer(0xFF);
     sdSPI.endTransaction();

Marlin/src/HAL/HAL_SAMD51/endstop_interrupts.h

@@ -112,9 +112,9 @@
                                  && !MATCH_Z_MIN_PROBE_EILINE(P))
 
 // One ISR for all EXT-Interrupts
-void endstop_ISR(void) { endstops.update(); }
+void endstop_ISR() { endstops.update(); }
 
-void setup_endstop_interrupts(void) {
+void setup_endstop_interrupts() {
   #if HAS_X_MAX
     #if !AVAILABLE_EILINE(X_MAX_PIN)
       static_assert(false, "X_MAX_PIN has no EXTINT line available.");

Marlin/src/HAL/HAL_SAMD51/watchdog.cpp

@@ -27,7 +27,7 @@
 
   #include "watchdog.h"
 
-  void watchdog_init(void) {
+  void watchdog_init() {
     // The low-power oscillator used by the WDT runs at 32,768 Hz with
     // a 1:32 prescale, thus 1024 Hz, though probably not super precise.