From 31aa00f1d5d988705b5f2a79be41b7503eae120a Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@home-assistant.io>
Date: Sat, 11 Apr 2026 22:38:29 -1000
Subject: [PATCH] [rp2040] Add USE_FAST_MILLIS_ACCUMULATOR define for benchmark
 guard

---
 esphome/components/rp2040/__init__.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/esphome/components/rp2040/__init__.py b/esphome/components/rp2040/__init__.py
index 4f4244a8d5..a34f04c8e5 100644
--- a/esphome/components/rp2040/__init__.py
+++ b/esphome/components/rp2040/__init__.py
@@ -226,6 +226,7 @@ async def to_code(config):
     # Wrap Arduino's millis() so all callers use our fast accumulator instead of
     # the expensive time_us_64() + micros_to_millis() 64-bit conversion path.
     cg.add_build_flag("-Wl,--wrap=millis")
+    cg.add_define("USE_FAST_MILLIS_ACCUMULATOR")
 
     cg.add_platformio_option("board_build.core", "earlephilhower")
     # In testing mode, use all flash for sketch to allow linking grouped component tests.