Remove some code from ili9341_read_memory

ili9341.c

@@ -454,7 +454,6 @@ void ili9341_read_memory(int x, int y, int w, int h, int len, uint16_t *out)
   // Skip SPI rx buffer
   while (SPI_RX_IS_NOT_EMPTY) (void)SPI_READ_DATA;
   // Init Rx DMA buffer, size, mode (spi and mem data size is 8 bit)
-  chSysLock();
   dmaStreamSetMemory0(dmarx, rgbbuf);
   dmaStreamSetTransactionSize(dmarx, data_size);
   dmaStreamSetMode(dmarx, rxdmamode | STM32_DMA_CR_PSIZE_BYTE | STM32_DMA_CR_MSIZE_BYTE |
@@ -465,22 +464,11 @@ void ili9341_read_memory(int x, int y, int w, int h, int len, uint16_t *out)
   dmaStreamSetMode(dmatx, txdmamode | STM32_DMA_CR_PSIZE_BYTE | STM32_DMA_CR_MSIZE_BYTE);
 
   // Start DMA exchange
-  dmaStreamEnable(dmatx);
   dmaStreamEnable(dmarx);
+  dmaStreamEnable(dmatx);
   // Wait DMA completion
   dmaWaitCompletion(dmatx);
-#if 0
-  int count = 0;
-  while ((dmarx)->channel->CNDTR > 0U) {
-    chThdSleepMicroseconds(100);
-    if (count++ > 10)
-      break;
-  }
-  dmaStreamDisable(dmarx);
-#else
   dmaWaitCompletion(dmarx);
-#endif
-  chSysUnlock();
   CS_HIGH;
 
   // Parce recived data