clean up

Author: hathach

cores/nRF5/usb/tinyusb/src/portable/nordic/nrf5x/hal_nrf5x.c

@@ -65,6 +65,8 @@ enum {
 /*------------------------------------------------------------------*/
 /* MACRO TYPEDEF CONSTANT ENUM
  *------------------------------------------------------------------*/
+// Priorities 0, 1, 4 (nRF52) are reserved for SoftDevice
+// 2 is highest for application
 #define USB_NVIC_PRIO   2
 
 void tusb_hal_nrf_power_event(uint32_t event);
@@ -261,7 +263,7 @@ void tusb_hal_nrf_power_event (uint32_t event)
       NRF_USBD->INTENSET = USBD_INTEN_USBRESET_Msk | USBD_INTEN_USBEVENT_Msk | USBD_INTEN_EPDATA_Msk |
           USBD_INTEN_EP0SETUP_Msk | USBD_INTEN_EP0DATADONE_Msk | USBD_INTEN_ENDEPIN0_Msk | USBD_INTEN_ENDEPOUT0_Msk;
 
-      // Enable interrupt, Priorities 0,1,4,5 (nRF52) are reserved for SoftDevice
+      // Enable interrupt
       NVIC_SetPriority(USBD_IRQn, USB_NVIC_PRIO);
       NVIC_ClearPendingIRQ(USBD_IRQn);
       NVIC_EnableIRQ(USBD_IRQn);