Enable ESP32 DMA controlled TFT_CS

ESP32 DMA will hold TFT_CS low automatically.
STM32 will not do this and requires bracketing DMA transfers with startWrite and endWrite as in examples.

Processors/TFT_eSPI_ESP32.c

@@ -690,7 +690,7 @@ bool TFT_eSPI::initDMA(void)
     .cs_ena_posttrans = 0,
     .clock_speed_hz = SPI_FREQUENCY,
     .input_delay_ns = 0,
-    .spics_io_num = -1, //TFT_CS,
+    .spics_io_num = TFT_CS,
     .flags = SPI_DEVICE_NO_DUMMY, //0,
     .queue_size = 1,
     .pre_cb = 0, //dc_callback, //Callback to handle D/C line

TFT_eSPI.h

@@ -16,7 +16,7 @@
 #ifndef _TFT_eSPIH_
 #define _TFT_eSPIH_
 
-#define TFT_ESPI_VERSION "2.3.51"
+#define TFT_ESPI_VERSION "2.3.52"
 
 // Bit level feature flags
 // Bit 0 set: viewport capability

library.json

@@ -1,6 +1,6 @@
 {
   "name": "TFT_eSPI",
-  "version": "2.3.51",
+  "version": "2.3.52",
   "keywords": "Arduino, tft, ePaper, display, STM32, ESP8266, NodeMCU, ESP32, M5Stack, ILI9341, ST7735, ILI9163, S6D02A1, ILI9486, ST7789, RM68140",
   "description": "A TFT and ePaper SPI graphics library with optimisation for ESP8266, ESP32 and STM32",
   "repository":

library.properties

@@ -1,5 +1,5 @@
 name=TFT_eSPI
-version=2.3.51
+version=2.3.52
 author=Bodmer
 maintainer=Bodmer
 sentence=TFT graphics library for Arduino processors with performance optimisation for STM32, ESP8266 and ESP32