From 9de61fcf587514f203f8215ffaa186b280975da8 Mon Sep 17 00:00:00 2001
From: Ian Reinhart Geiser <geiseri@yahoo.com>
Date: Thu, 31 Mar 2022 23:46:39 -0400
Subject: [PATCH] Define touchscreen support when in use. (#3296)

---
 esphome/components/touchscreen/__init__.py | 7 +++++++
 esphome/core/defines.h                     | 1 +
 2 files changed, 8 insertions(+)

diff --git a/esphome/components/touchscreen/__init__.py b/esphome/components/touchscreen/__init__.py
index 125103e2b8..a4bdc8cafd 100644
--- a/esphome/components/touchscreen/__init__.py
+++ b/esphome/components/touchscreen/__init__.py
@@ -4,6 +4,7 @@ import esphome.codegen as cg
 from esphome.components import display
 from esphome import automation
 from esphome.const import CONF_ON_TOUCH
+from esphome.core import coroutine_with_priority
 
 CODEOWNERS = ["@jesserockz"]
 DEPENDENCIES = ["display"]
@@ -39,3 +40,9 @@ async def register_touchscreen(var, config):
             [(TouchPoint, "touch")],
             config[CONF_ON_TOUCH],
         )
+
+
+@coroutine_with_priority(100.0)
+async def to_code(config):
+    cg.add_global(touchscreen_ns.using)
+    cg.add_define("USE_TOUCHSCREEN")
diff --git a/esphome/core/defines.h b/esphome/core/defines.h
index aabb5510f4..b5c82338b3 100644
--- a/esphome/core/defines.h
+++ b/esphome/core/defines.h
@@ -40,6 +40,7 @@
 #define USE_SWITCH
 #define USE_TEXT_SENSOR
 #define USE_TIME
+#define USE_TOUCHSCREEN
 #define USE_UART_DEBUGGER
 #define USE_WIFI