From ac48ff1fd6b23a8b81ca684b0db0148066680574 Mon Sep 17 00:00:00 2001
From: Otto Winter <otto@otto-winter.com>
Date: Thu, 17 Oct 2019 16:53:39 +0200
Subject: [PATCH] Fix potential ISR digital_write issue (#753)

---
 esphome/core/esphal.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/esphome/core/esphal.cpp b/esphome/core/esphal.cpp
index f0749894c0..13d54e726d 100644
--- a/esphome/core/esphal.cpp
+++ b/esphome/core/esphal.cpp
@@ -148,7 +148,7 @@ void ICACHE_RAM_ATTR HOT GPIOPin::digital_write(bool value) {
   }
 #endif
 }
-void ISRInternalGPIOPin::digital_write(bool value) {
+void ICACHE_RAM_ATTR HOT ISRInternalGPIOPin::digital_write(bool value) {
 #ifdef ARDUINO_ARCH_ESP8266
   if (this->pin_ != 16) {
     if (value != this->inverted_) {