From a5f87748781bd4536fd94814d1ac9c498dd2e9ab Mon Sep 17 00:00:00 2001
From: Jan Bouwhuis <jbouwh@users.noreply.github.com>
Date: Fri, 29 Sep 2023 20:54:24 +0200
Subject: [PATCH] Use cached_property for legacy device_tracker type (#101125)

---
 homeassistant/components/device_tracker/legacy.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/homeassistant/components/device_tracker/legacy.py b/homeassistant/components/device_tracker/legacy.py
index b428018cd9e..7c12a2d8777 100644
--- a/homeassistant/components/device_tracker/legacy.py
+++ b/homeassistant/components/device_tracker/legacy.py
@@ -12,6 +12,7 @@ import attr
 import voluptuous as vol
 
 from homeassistant import util
+from homeassistant.backports.functools import cached_property
 from homeassistant.components import zone
 from homeassistant.config import async_log_exception, load_yaml_config_file
 from homeassistant.const import (
@@ -262,7 +263,7 @@ class DeviceTrackerPlatform:
     platform: ModuleType = attr.ib()
     config: dict = attr.ib()
 
-    @property
+    @cached_property
     def type(self) -> str | None:
         """Return platform type."""
         methods, platform_type = self.LEGACY_SETUP, PLATFORM_TYPE_LEGACY