Drop C-style 'void' argument

Marlin/src/HAL/HAL_TEENSY35_36/HAL.cpp

@@ -51,10 +51,10 @@ static const uint8_t pin2sc1a[] = {
 
 /*
   // disable interrupts
-  void cli(void) { noInterrupts(); }
+  void cli() { noInterrupts(); }
 
   // enable interrupts
-  void sei(void) { interrupts(); }
+  void sei() { interrupts(); }
 */
 
 void HAL_adc_init() {
@@ -64,9 +64,9 @@ void HAL_adc_init() {
   NVIC_ENABLE_IRQ(IRQ_FTM1);
 }
 
-void HAL_clear_reset_source(void) { }
+void HAL_clear_reset_source() { }
 
-uint8_t HAL_get_reset_source(void) {
+uint8_t HAL_get_reset_source() {
   switch (RCM_SRS0) {
     case 128: return RST_POWER_ON; break;
     case 64: return RST_EXTERNAL; break;
@@ -109,7 +109,7 @@ void HAL_adc_start_conversion(const uint8_t adc_pin) {
   }
 }
 
-uint16_t HAL_adc_get_result(void) {
+uint16_t HAL_adc_get_result() {
   switch (HAL_adc_select) {
     case 0: return ADC0_RA;
     case 1: return ADC1_RA;

Marlin/src/HAL/HAL_TEENSY35_36/HAL.h

@@ -93,20 +93,20 @@ typedef int8_t pin_t;
 #undef pgm_read_word
 #define pgm_read_word(addr) (*((uint16_t*)(addr)))
 
-inline void HAL_init(void) { }
+inline void HAL_init() { }
 
 // Clear reset reason
-void HAL_clear_reset_source(void);
+void HAL_clear_reset_source();
 
 // Reset reason
-uint8_t HAL_get_reset_source(void);
+uint8_t HAL_get_reset_source();
 
 FORCE_INLINE void _delay_ms(const int delay_ms) { delay(delay_ms); }
 
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wunused-function"
 extern "C" {
-  int freeMemory(void);
+  int freeMemory();
 }
 #pragma GCC diagnostic pop
 
@@ -121,7 +121,7 @@ void HAL_adc_init();
 #define HAL_ANALOG_SELECT(pin)
 
 void HAL_adc_start_conversion(const uint8_t adc_pin);
-uint16_t HAL_adc_get_result(void);
+uint16_t HAL_adc_get_result();
 
 #define GET_PIN_MAP_PIN(index) index
 #define GET_PIN_MAP_INDEX(pin) pin

Marlin/src/HAL/HAL_TEENSY35_36/HAL_SPI.cpp

@@ -29,7 +29,7 @@
 
 static SPISettings spiConfig;
 
-void spiBegin(void) {
+void spiBegin() {
   #if !PIN_EXISTS(SS)
     #error SS_PIN not defined!
   #endif
@@ -65,7 +65,7 @@ void spiInit(uint8_t spiRate) {
   SPI.begin();
 }
 
-uint8_t spiRec(void) {
+uint8_t spiRec() {
   SPI.beginTransaction(spiConfig);
   uint8_t returnByte = SPI.transfer(0xFF);
   SPI.endTransaction();

Marlin/src/HAL/HAL_TEENSY35_36/endstop_interrupts.h

@@ -38,13 +38,13 @@
 #include "../../module/endstops.h"
 
 // One ISR for all EXT-Interrupts
-void endstop_ISR(void) { endstops.update(); }
+void endstop_ISR() { endstops.update(); }
 
 /**
  * Endstop interrupts for Due based targets.
  * On Due, all pins support external interrupt capability.
  */
-void setup_endstop_interrupts(void) {
+void setup_endstop_interrupts() {
   #define _ATTACH(P) attachInterrupt(digitalPinToInterrupt(P), endstop_ISR, CHANGE)
   #if HAS_X_MAX
     _ATTACH(X_MAX_PIN);

Marlin/src/HAL/HAL_TEENSY35_36/timers.cpp

@@ -35,7 +35,7 @@
   so that all instructions following the ISB are fetched from cache or
   memory, after the instruction has been completed.
 */
-FORCE_INLINE static void __ISB(void) {
+FORCE_INLINE static void __ISB() {
   __asm__ __volatile__("isb 0xF":::"memory");
 }
 
@@ -43,7 +43,7 @@ FORCE_INLINE static void __ISB(void) {
   This function acts as a special kind of Data Memory Barrier.
   It completes when all explicit memory accesses before this instruction complete.
 */
-FORCE_INLINE static void __DSB(void) {
+FORCE_INLINE static void __DSB() {
   __asm__ __volatile__("dsb 0xF":::"memory");
 }
 

Marlin/src/HAL/HAL_TEENSY35_36/timers.h

@@ -67,8 +67,8 @@ typedef uint32_t hal_timer_t;
 #define ENABLE_TEMPERATURE_INTERRUPT() HAL_timer_enable_interrupt(TEMP_TIMER_NUM)
 #define DISABLE_TEMPERATURE_INTERRUPT() HAL_timer_disable_interrupt(TEMP_TIMER_NUM)
 
-#define HAL_STEP_TIMER_ISR()  extern "C" void ftm0_isr(void) //void TC3_Handler()
-#define HAL_TEMP_TIMER_ISR()  extern "C" void ftm1_isr(void) //void TC4_Handler()
+#define HAL_STEP_TIMER_ISR()  extern "C" void ftm0_isr() //void TC3_Handler()
+#define HAL_TEMP_TIMER_ISR()  extern "C" void ftm1_isr() //void TC4_Handler()
 
 void HAL_timer_start(const uint8_t timer_num, const uint32_t frequency);