Add 2nd init sequence for ILI9341, see #1172

Use:
  #define ILI9341_2_DRIVER
in the setup file to invoke new initicode, instead of:
  #define ILI9341_DRIVER

Processors/TFT_eSPI_STM32.h

@@ -45,7 +45,7 @@
 ////////////////////////////////////////////////////////////////////////////////////////
 // Write strobe timing setup
 ////////////////////////////////////////////////////////////////////////////////////////
-  #if defined (ILI9341_DRIVER) || defined (ST7796_DRIVER)   || defined (ILI9486_DRIVER) // WRX twc spec is <=66ns = 15.15MHz
+  #if defined (ILI9341_DRIVER) || defined(ILI9341_2_DRIVER) || defined (ST7796_DRIVER)   || defined (ILI9486_DRIVER) // WRX twc spec is <=66ns = 15.15MHz
 
     // Extra write pulse low time (delay for data setup)
     #if defined (STM32F1xx)

TFT_Drivers/ILI9341_Init.h

@@ -5,6 +5,7 @@
 //
 // See ST7735_Setup.h file for an alternative format
 
+#if defined (ILI9341_DRIVER)
 {
   writecommand(0xEF);
   writedata(0x03);
@@ -122,3 +123,126 @@
   writecommand(ILI9341_DISPON);    //Display on
 
 }
+
+#elif defined (ILI9341_2_DRIVER) // Alternative init sequence, see https://github.com/Bodmer/TFT_eSPI/issues/1172
+
+{
+writecommand(0xCF);
+writedata(0x00);
+writedata(0XC1);
+writedata(0X30);
+
+writecommand(0xED);
+writedata(0x64);
+writedata(0x03);
+writedata(0X12);
+writedata(0X81);
+
+writecommand(0xE8);
+writedata(0x85);
+writedata(0x00);
+writedata(0x78);
+
+writecommand(0xCB);
+writedata(0x39);
+writedata(0x2C);
+writedata(0x00);
+writedata(0x34);
+writedata(0x02);
+
+writecommand(0xF7);
+writedata(0x20);
+
+writecommand(0xEA);
+writedata(0x00);
+writedata(0x00);
+
+writecommand(ILI9341_PWCTR1); //Power control
+writedata(0x10); //VRH[5:0]
+
+writecommand(ILI9341_PWCTR2); //Power control
+writedata(0x00); //SAP[2:0];BT[3:0]
+
+writecommand(ILI9341_VMCTR1); //VCM control
+writedata(0x30);
+writedata(0x30);
+
+writecommand(ILI9341_VMCTR2); //VCM control2
+writedata(0xB7); //--
+
+writecommand(ILI9341_PIXFMT);
+writedata(0x55);
+
+writecommand(0x36); // Memory Access Control
+writedata(0x08); // Rotation 0 (portrait mode)
+
+writecommand(ILI9341_FRMCTR1);
+writedata(0x00);
+writedata(0x1A);
+
+writecommand(ILI9341_DFUNCTR); // Display Function Control
+writedata(0x08);
+writedata(0x82);
+writedata(0x27);
+
+writecommand(0xF2); // 3Gamma Function Disable
+writedata(0x00);
+
+writecommand(0x26); //Gamma curve selected
+writedata(0x01);
+
+writecommand(0xE0); //Set Gamma
+writedata(0x0F);
+writedata(0x2A);
+writedata(0x28);
+writedata(0x08);
+writedata(0x0E);
+writedata(0x08);
+writedata(0x54);
+writedata(0xA9);
+writedata(0x43);
+writedata(0x0A);
+writedata(0x0F);
+writedata(0x00);
+writedata(0x00);
+writedata(0x00);
+writedata(0x00);
+
+writecommand(0XE1); //Set Gamma
+writedata(0x00);
+writedata(0x15);
+writedata(0x17);
+writedata(0x07);
+writedata(0x11);
+writedata(0x06);
+writedata(0x2B);
+writedata(0x56);
+writedata(0x3C);
+writedata(0x05);
+writedata(0x10);
+writedata(0x0F);
+writedata(0x3F);
+writedata(0x3F);
+writedata(0x0F);
+
+writecommand(0x2B);
+writedata(0x00);
+writedata(0x00);
+writedata(0x01);
+writedata(0x3f);
+
+writecommand(0x2A);
+writedata(0x00);
+writedata(0x00);
+writedata(0x00);
+writedata(0xef);
+
+writecommand(ILI9341_SLPOUT); //Exit Sleep
+
+end_tft_write();
+delay(120);
+begin_tft_write();
+
+writecommand(ILI9341_DISPON); //Display on
+}
+#endif

TFT_eSPI.cpp

@@ -604,7 +604,7 @@ void TFT_eSPI::init(uint8_t tc)
   tc = tc; // Supress warning
 
   // This loads the driver specific initialisation code  <<<<<<<<<<<<<<<<<<<<< ADD NEW DRIVERS TO THE LIST HERE <<<<<<<<<<<<<<<<<<<<<<<
-#if   defined (ILI9341_DRIVER)
+#if   defined (ILI9341_DRIVER) || defined(ILI9341_2_DRIVER)
     #include "TFT_Drivers/ILI9341_Init.h"
 
 #elif defined (ST7735_DRIVER)
@@ -690,7 +690,7 @@ void TFT_eSPI::setRotation(uint8_t m)
   begin_tft_write();
 
     // This loads the driver specific rotation code  <<<<<<<<<<<<<<<<<<<<< ADD NEW DRIVERS TO THE LIST HERE <<<<<<<<<<<<<<<<<<<<<<<
-#if   defined (ILI9341_DRIVER)
+#if   defined (ILI9341_DRIVER) || defined(ILI9341_2_DRIVER)
     #include "TFT_Drivers/ILI9341_Rotation.h"
 
 #elif defined (ST7735_DRIVER)
@@ -941,7 +941,7 @@ uint16_t TFT_eSPI::readPixel(int32_t x0, int32_t y0)
   // Fetch the 16 bit BRG pixel
   //uint16_t rgb = (readByte() << 8) | readByte();
 
-  #if defined (ILI9341_DRIVER) | defined (ILI9488_DRIVER) | defined (SSD1963_DRIVER)// Read 3 bytes
+  #if defined (ILI9341_DRIVER)  || defined(ILI9341_2_DRIVER) || defined (ILI9488_DRIVER) || defined (SSD1963_DRIVER)// Read 3 bytes
 
     // Read window pixel 24 bit RGB values and fill in LS bits
     uint16_t rgb = ((readByte() & 0xF8) << 8) | ((readByte() & 0xFC) << 3) | (readByte() >> 3);
@@ -1059,7 +1059,7 @@ void TFT_eSPI::readRect(int32_t x, int32_t y, int32_t w, int32_t h, uint16_t *da
   // Set masked pins D0- D7 to input
   busDir(dir_mask, INPUT);
 
-  #if defined (ILI9341_DRIVER) | defined (ILI9488_DRIVER) // Read 3 bytes
+  #if defined (ILI9341_DRIVER)  || defined(ILI9341_2_DRIVER) || defined (ILI9488_DRIVER) // Read 3 bytes
     // Dummy read to throw away don't care value
     readByte();
 

User_Setup.h

@@ -36,7 +36,8 @@
 //#define RPI_DISPLAY_TYPE // 20MHz maximum SPI
 
 // Only define one driver, the other ones must be commented out
-#define ILI9341_DRIVER
+#define ILI9341_DRIVER       // Generic driver for common displays
+//#define ILI9341_2_DRIVER     // Alternative ILI9341 driver, see https://github.com/Bodmer/TFT_eSPI/issues/1172
 //#define ST7735_DRIVER      // Define additional parameters below for this display
 //#define ILI9163_DRIVER     // Define additional parameters below for this display
 //#define S6D02A1_DRIVER

User_Setup_Select.h

@@ -131,7 +131,7 @@
 #endif
 
 // Load the right driver definition - do not tinker here !
-#if   defined (ILI9341_DRIVER)
+#if   defined (ILI9341_DRIVER) || defined(ILI9341_2_DRIVER)
      #include <TFT_Drivers/ILI9341_Defines.h>
      #define  TFT_DRIVER 0x9341
 #elif defined (ST7735_DRIVER)