[internal_temperature] Re-include esp_phy on the original ESP32 so the PHY blob links (#18884)

esphome/components/esp32/__init__.py

@@ -246,7 +246,7 @@ DEFAULT_EXCLUDED_IDF_COMPONENTS = (
     "esp_https_server",  # HTTPS server - ESPHome has its own web server
     "esp_lcd",  # LCD controller drivers - only needed by display component
     "esp_local_ctrl",  # Local control over HTTPS/BLE - ESPHome has native API
-    "esp_phy",  # RF PHY - esp_wifi/bt/ieee802154 pull it back when they are in the build
+    "esp_phy",  # RF PHY - re-included by internal_temperature on the original ESP32; esp_wifi/bt/ieee802154 pull it back
     "esp_wifi",  # WiFi stack - re-included by request_wifi(), espnow; bt pulls it back for BLE builds
     "espcoredump",  # Core dump support - ESPHome has its own debug component
     "fatfs",  # FAT filesystem - ESPHome doesn't use filesystem storage

esphome/components/internal_temperature/sensor.py

@@ -1,5 +1,7 @@
 import esphome.codegen as cg
 from esphome.components import sensor
+from esphome.components.esp32 import get_esp32_variant, include_builtin_idf_component
+from esphome.components.esp32.const import VARIANT_ESP32
 from esphome.components.zephyr import zephyr_add_prj_conf
 from esphome.config_helpers import filter_source_files_from_platform
 import esphome.config_validation as cv
@@ -48,6 +50,10 @@ async def to_code(config: ConfigType) -> None:
     var = await sensor.new_sensor(config)
     await cg.register_component(var, config)
 
+    if CORE.is_esp32 and get_esp32_variant() == VARIANT_ESP32:
+        # temprature_sens_read() lives in the esp_phy blob, which is excluded by default
+        include_builtin_idf_component("esp_phy")
+
     if CORE.using_zephyr and CORE.is_nrf52:
         zephyr_add_prj_conf("SENSOR", True)
         zephyr_add_prj_conf("TEMP_NRF5", True)