From 58975fc8b54234eb093ad6b6f85c8ecc3201a04f Mon Sep 17 00:00:00 2001
From: ellensp <ellensp@hotmail.com>
Date: Sun, 16 Aug 2020 15:57:07 +1200
Subject: [PATCH] Checks for CR10_STOCKDISPLAY with Creality v4  (#19019)

---
 Marlin/src/pins/stm32f1/pins_CREALITY_V4.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Marlin/src/pins/stm32f1/pins_CREALITY_V4.h b/Marlin/src/pins/stm32f1/pins_CREALITY_V4.h
index ed281eb00c..c36b4561b0 100644
--- a/Marlin/src/pins/stm32f1/pins_CREALITY_V4.h
+++ b/Marlin/src/pins/stm32f1/pins_CREALITY_V4.h
@@ -134,6 +134,10 @@
 #define ONBOARD_SD_CS_PIN                   PA4   // SDSS
 #define SDIO_SUPPORT
 
+#if ENABLED(CR10_STOCKDISPLAY) && NONE(RET6_12864_LCD, VET6_12864_LCD)
+  #error "Define RET6_12864_LCD or VET6_12864_LCD to select pins for CR10_STOCKDISPLAY with the Creality V4 controller."
+#endif
+
 #if ENABLED(RET6_12864_LCD)
 
   /* RET6 12864 LCD */
@@ -146,6 +150,7 @@
   #define BTN_EN2                           PB14
 
   #define BEEPER_PIN                        PC6
+
 #elif ENABLED(VET6_12864_LCD)
 
   /* VET6 12864 LCD */