misc. cleanup

Marlin/src/HAL/STM32/tft/tft_spi.cpp

@@ -207,12 +207,12 @@ void TFT_SPI::Transmit(uint16_t Data) {
   while ((SPIx.Instance->SR & SPI_FLAG_BSY) == SPI_FLAG_BSY) {}
 
   if (TFT_MISO_PIN != TFT_MOSI_PIN)
-    __HAL_SPI_CLEAR_OVRFLAG(&SPIx);   /* Clear overrun flag in 2 Lines communication mode because received is not read */
+    __HAL_SPI_CLEAR_OVRFLAG(&SPIx);   // Clear overrun flag in 2 Lines communication mode because received is not read
 }
 
 void TFT_SPI::TransmitDMA(uint32_t MemoryIncrease, uint16_t *Data, uint16_t Count) {
   // Wait last dma finish, to start another
-  while(isBusy()) { }
+  while (isBusy()) { /* nada */ }
 
   DMAtx.Init.MemInc = MemoryIncrease;
   HAL_DMA_Init(&DMAtx);
@@ -225,7 +225,7 @@ void TFT_SPI::TransmitDMA(uint32_t MemoryIncrease, uint16_t *Data, uint16_t Coun
   HAL_DMA_Start(&DMAtx, (uint32_t)Data, (uint32_t)&(SPIx.Instance->DR), Count);
   __HAL_SPI_ENABLE(&SPIx);
 
-  SET_BIT(SPIx.Instance->CR2, SPI_CR2_TXDMAEN);   /* Enable Tx DMA Request */
+  SET_BIT(SPIx.Instance->CR2, SPI_CR2_TXDMAEN);   // Enable Tx DMA Request
 
   HAL_DMA_PollForTransfer(&DMAtx, HAL_DMA_FULL_TRANSFER, HAL_MAX_DELAY);
   Abort();

Marlin/src/lcd/extui/lib/mks_ui/draw_print_file.cpp

@@ -66,8 +66,10 @@ uint8_t sel_id = 0;
     //root2.rewind();
     //SERIAL_ECHOLN(list_file.curDirPath);
 
-    if (curDirLever != 0) card.cd(list_file.curDirPath);
+    if (curDirLever != 0)
-    else card.cdroot(); // while(card.cdup());
+      card.cd(list_file.curDirPath);
+    else
+      card.cdroot();
 
     const uint16_t fileCnt = card.get_num_Files();