From f77c5f6a5bb42ea5d28cb2db54417d2694acc7c9 Mon Sep 17 00:00:00 2001
From: Kevin Hester <kevinh@geeksville.com>
Date: Thu, 22 Aug 2024 10:50:44 -0700
Subject: [PATCH] Don't create backlight instances when the variant hasn't
 specified a pin

---
 src/graphics/TFTDisplay.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/graphics/TFTDisplay.cpp b/src/graphics/TFTDisplay.cpp
index 7a0a8c3eb..f6bd6513a 100644
--- a/src/graphics/TFTDisplay.cpp
+++ b/src/graphics/TFTDisplay.cpp
@@ -192,6 +192,7 @@ class LGFX : public lgfx::LGFX_Device
             _panel_instance.config(cfg);
         }
 
+#ifdef ST7789_BL
         // Set the backlight control. (delete if not necessary)
         {
             auto cfg = _light_instance.config(); // Gets a structure for backlight settings.
@@ -203,6 +204,7 @@ class LGFX : public lgfx::LGFX_Device
             _light_instance.config(cfg);
             _panel_instance.setLight(&_light_instance); // Set the backlight on the panel.
         }
+#endif
 
 #if HAS_TOUCHSCREEN
         // Configure settings for touch screen control.
@@ -312,6 +314,7 @@ class LGFX : public lgfx::LGFX_Device
             _panel_instance.config(cfg);
         }
 
+#ifdef TFT_BL
         // Set the backlight control
         {
             auto cfg = _light_instance.config(); // Gets a structure for backlight settings.
@@ -324,6 +327,7 @@ class LGFX : public lgfx::LGFX_Device
             _light_instance.config(cfg);
             _panel_instance.setLight(&_light_instance); // Set the backlight on the panel.
         }
+#endif
 
         setPanel(&_panel_instance);
     }