From dc96a9eee475c5e7fc3d8a05893335a158eedeee Mon Sep 17 00:00:00 2001
From: prenticedavid <david.prentice@farming.co.uk>
Date: Wed, 11 Jan 2017 00:36:50 +0000
Subject: [PATCH] official ID check for HX8357-D

---
 MCUFRIEND_kbv.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/MCUFRIEND_kbv.cpp b/MCUFRIEND_kbv.cpp
index 8041010..1859052 100644
--- a/MCUFRIEND_kbv.cpp
+++ b/MCUFRIEND_kbv.cpp
@@ -213,8 +213,13 @@ uint16_t MCUFRIEND_kbv::readID(void)
     msb = ret32 >> 16;
     ret = ret32;	
 //    if (msb = 0x38 && ret == 0x8000) //unknown [xx 38 80 00] with D3 = 0x1602
-    if (msb == 0x00 && ret == 0x8000) //HX8357-D [xx 00 80 00]
-        return 0x8357;
+    if (msb == 0x00 && ret == 0x8000) { //HX8357-D [xx 00 80 00]
+        uint8_t cmds[] = {0xFF, 0x83, 0x57};
+        pushCommand(0xB9, cmds, 3);
+        msb = readReg(0xD0);
+        if (msb == 0x99 || msb == 0x90)
+            return 0x8357;
+    }
     if (msb == 0xFF && ret == 0xFFFF) //R61526 [xx FF FF FF]
         return 0x1526;          //subsequent begin() enables Command Access
 	if (ret == 0x8552)          //ST7789V: [xx 85 85 52]