From e0cb33a0a14845262217263db551c98ae4a63a67 Mon Sep 17 00:00:00 2001
From: Marc Mueller <30130371+cdce8p@users.noreply.github.com>
Date: Mon, 6 Dec 2021 04:06:35 +0100
Subject: [PATCH] Use platform enum (4) [M-O] (#60940)

---
 homeassistant/components/mazda/__init__.py      |  4 ++--
 homeassistant/components/melcloud/__init__.py   |  4 ++--
 homeassistant/components/met/__init__.py        |  3 ++-
 .../components/met_eireann/__init__.py          |  4 ++--
 homeassistant/components/meteo_france/const.py  |  3 ++-
 homeassistant/components/meteoclimatic/const.py |  3 ++-
 homeassistant/components/metoffice/__init__.py  | 10 ++++++++--
 homeassistant/components/mikrotik/const.py      |  3 ++-
 homeassistant/components/mill/__init__.py       |  4 ++--
 .../components/minecraft_server/__init__.py     |  4 ++--
 homeassistant/components/mobile_app/__init__.py |  4 ++--
 .../components/modem_callerid/__init__.py       |  5 ++---
 .../components/modern_forms/__init__.py         | 17 ++++++-----------
 homeassistant/components/monoprice/__init__.py  |  4 ++--
 homeassistant/components/motion_blinds/const.py |  4 +++-
 homeassistant/components/mullvad/__init__.py    |  3 ++-
 homeassistant/components/mutesync/__init__.py   |  3 ++-
 homeassistant/components/myq/const.py           |  3 ++-
 homeassistant/components/nam/__init__.py        |  4 ++--
 homeassistant/components/nanoleaf/__init__.py   |  4 ++--
 homeassistant/components/neato/__init__.py      |  4 ++--
 homeassistant/components/nest/__init__.py       |  3 ++-
 homeassistant/components/netatmo/const.py       | 14 ++++++++------
 homeassistant/components/netgear/const.py       |  4 +++-
 homeassistant/components/nexia/const.py         |  3 ++-
 homeassistant/components/nightscout/__init__.py |  4 ++--
 homeassistant/components/nmap_tracker/const.py  |  4 +++-
 homeassistant/components/notion/__init__.py     |  4 ++--
 homeassistant/components/nuheat/const.py        |  3 ++-
 homeassistant/components/nuki/__init__.py       | 10 ++++++++--
 homeassistant/components/nut/const.py           |  3 ++-
 homeassistant/components/nws/__init__.py        |  4 ++--
 homeassistant/components/nzbget/__init__.py     |  3 ++-
 homeassistant/components/octoprint/__init__.py  |  3 ++-
 homeassistant/components/omnilogic/__init__.py  |  4 ++--
 homeassistant/components/ondilo_ico/__init__.py |  3 ++-
 homeassistant/components/onvif/__init__.py      |  5 +++--
 homeassistant/components/opengarage/__init__.py |  4 ++--
 .../components/opentherm_gw/__init__.py         |  6 ++----
 homeassistant/components/openuv/__init__.py     |  3 ++-
 .../components/openweathermap/const.py          |  3 ++-
 homeassistant/components/ovo_energy/__init__.py |  4 ++--
 homeassistant/components/owntracks/__init__.py  |  3 ++-
 43 files changed, 112 insertions(+), 82 deletions(-)

diff --git a/homeassistant/components/mazda/__init__.py b/homeassistant/components/mazda/__init__.py
index d165220aa8ee..5650e07daca0 100644
--- a/homeassistant/components/mazda/__init__.py
+++ b/homeassistant/components/mazda/__init__.py
@@ -14,7 +14,7 @@ from pymazda import (
 import voluptuous as vol
 
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import CONF_EMAIL, CONF_PASSWORD, CONF_REGION
+from homeassistant.const import CONF_EMAIL, CONF_PASSWORD, CONF_REGION, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import (
     ConfigEntryAuthFailed,
@@ -34,7 +34,7 @@ from .const import DATA_CLIENT, DATA_COORDINATOR, DATA_VEHICLES, DOMAIN, SERVICE
 
 _LOGGER = logging.getLogger(__name__)
 
-PLATFORMS = ["device_tracker", "lock", "sensor"]
+PLATFORMS = [Platform.DEVICE_TRACKER, Platform.LOCK, Platform.SENSOR]
 
 
 async def with_timeout(task, timeout_seconds=10):
diff --git a/homeassistant/components/melcloud/__init__.py b/homeassistant/components/melcloud/__init__.py
index af34498aba2c..417fa1641f9d 100644
--- a/homeassistant/components/melcloud/__init__.py
+++ b/homeassistant/components/melcloud/__init__.py
@@ -12,7 +12,7 @@ from pymelcloud import Device, get_devices
 import voluptuous as vol
 
 from homeassistant.config_entries import SOURCE_IMPORT, ConfigEntry
-from homeassistant.const import CONF_TOKEN, CONF_USERNAME
+from homeassistant.const import CONF_TOKEN, CONF_USERNAME, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import ConfigEntryNotReady
 import homeassistant.helpers.config_validation as cv
@@ -27,7 +27,7 @@ _LOGGER = logging.getLogger(__name__)
 
 MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=60)
 
-PLATFORMS = ["climate", "sensor", "water_heater"]
+PLATFORMS = [Platform.CLIMATE, Platform.SENSOR, Platform.WATER_HEATER]
 
 CONF_LANGUAGE = "language"
 CONFIG_SCHEMA = vol.Schema(
diff --git a/homeassistant/components/met/__init__.py b/homeassistant/components/met/__init__.py
index 47573a761513..009beea2f788 100644
--- a/homeassistant/components/met/__init__.py
+++ b/homeassistant/components/met/__init__.py
@@ -18,6 +18,7 @@ from homeassistant.const import (
     EVENT_CORE_CONFIG_UPDATE,
     LENGTH_FEET,
     LENGTH_METERS,
+    Platform,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
@@ -34,7 +35,7 @@ from .const import (
 
 URL = "https://aa015h6buqvih86i1.api.met.no/weatherapi/locationforecast/2.0/complete"
 
-PLATFORMS = ["weather"]
+PLATFORMS = [Platform.WEATHER]
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/met_eireann/__init__.py b/homeassistant/components/met_eireann/__init__.py
index c70f436009d5..68ecaa9f05a2 100644
--- a/homeassistant/components/met_eireann/__init__.py
+++ b/homeassistant/components/met_eireann/__init__.py
@@ -4,7 +4,7 @@ import logging
 
 import meteireann
 
-from homeassistant.const import CONF_ELEVATION, CONF_LATITUDE, CONF_LONGITUDE
+from homeassistant.const import CONF_ELEVATION, CONF_LATITUDE, CONF_LONGITUDE, Platform
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 from homeassistant.helpers.update_coordinator import DataUpdateCoordinator, UpdateFailed
 import homeassistant.util.dt as dt_util
@@ -15,7 +15,7 @@ _LOGGER = logging.getLogger(__name__)
 
 UPDATE_INTERVAL = timedelta(minutes=60)
 
-PLATFORMS = ["weather"]
+PLATFORMS = [Platform.WEATHER]
 
 
 async def async_setup_entry(hass, config_entry):
diff --git a/homeassistant/components/meteo_france/const.py b/homeassistant/components/meteo_france/const.py
index b84f3ae14fae..2967e5e5becf 100644
--- a/homeassistant/components/meteo_france/const.py
+++ b/homeassistant/components/meteo_france/const.py
@@ -34,10 +34,11 @@ from homeassistant.const import (
     SPEED_KILOMETERS_PER_HOUR,
     TEMP_CELSIUS,
     UV_INDEX,
+    Platform,
 )
 
 DOMAIN = "meteo_france"
-PLATFORMS = ["sensor", "weather"]
+PLATFORMS = [Platform.SENSOR, Platform.WEATHER]
 COORDINATOR_FORECAST = "coordinator_forecast"
 COORDINATOR_RAIN = "coordinator_rain"
 COORDINATOR_ALERT = "coordinator_alert"
diff --git a/homeassistant/components/meteoclimatic/const.py b/homeassistant/components/meteoclimatic/const.py
index f4e51a6fb106..f5883cc38560 100644
--- a/homeassistant/components/meteoclimatic/const.py
+++ b/homeassistant/components/meteoclimatic/const.py
@@ -33,10 +33,11 @@ from homeassistant.const import (
     PRESSURE_HPA,
     SPEED_KILOMETERS_PER_HOUR,
     TEMP_CELSIUS,
+    Platform,
 )
 
 DOMAIN = "meteoclimatic"
-PLATFORMS = ["sensor", "weather"]
+PLATFORMS = [Platform.SENSOR, Platform.WEATHER]
 ATTRIBUTION = "Data provided by Meteoclimatic"
 MODEL = "Meteoclimatic RSS feed"
 MANUFACTURER = "Meteoclimatic"
diff --git a/homeassistant/components/metoffice/__init__.py b/homeassistant/components/metoffice/__init__.py
index 5537af315404..3d10fdef3786 100644
--- a/homeassistant/components/metoffice/__init__.py
+++ b/homeassistant/components/metoffice/__init__.py
@@ -6,7 +6,13 @@ import logging
 import datapoint
 
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import CONF_API_KEY, CONF_LATITUDE, CONF_LONGITUDE, CONF_NAME
+from homeassistant.const import (
+    CONF_API_KEY,
+    CONF_LATITUDE,
+    CONF_LONGITUDE,
+    CONF_NAME,
+    Platform,
+)
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import ConfigEntryNotReady
 from homeassistant.helpers.device_registry import DeviceEntryType
@@ -28,7 +34,7 @@ from .helpers import fetch_data, fetch_site
 
 _LOGGER = logging.getLogger(__name__)
 
-PLATFORMS = ["sensor", "weather"]
+PLATFORMS = [Platform.SENSOR, Platform.WEATHER]
 
 
 async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
diff --git a/homeassistant/components/mikrotik/const.py b/homeassistant/components/mikrotik/const.py
index 1fbe0af5c1b2..b328c10a6029 100644
--- a/homeassistant/components/mikrotik/const.py
+++ b/homeassistant/components/mikrotik/const.py
@@ -1,4 +1,5 @@
 """Constants used in the Mikrotik components."""
+from homeassistant.const import Platform
 
 DOMAIN = "mikrotik"
 DEFAULT_NAME = "Mikrotik"
@@ -37,7 +38,7 @@ MIKROTIK_SERVICES = {
     IS_CAPSMAN: "/caps-man/interface/print",
 }
 
-PLATFORMS = ["device_tracker"]
+PLATFORMS = [Platform.DEVICE_TRACKER]
 
 ATTR_DEVICE_TRACKER = [
     "comment",
diff --git a/homeassistant/components/mill/__init__.py b/homeassistant/components/mill/__init__.py
index c087fe0d853e..299adb949e31 100644
--- a/homeassistant/components/mill/__init__.py
+++ b/homeassistant/components/mill/__init__.py
@@ -7,7 +7,7 @@ import logging
 from mill import Mill
 from mill_local import Mill as MillLocal
 
-from homeassistant.const import CONF_IP_ADDRESS, CONF_PASSWORD, CONF_USERNAME
+from homeassistant.const import CONF_IP_ADDRESS, CONF_PASSWORD, CONF_USERNAME, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import ConfigEntryNotReady
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
@@ -17,7 +17,7 @@ from .const import CLOUD, CONNECTION_TYPE, DOMAIN, LOCAL
 
 _LOGGER = logging.getLogger(__name__)
 
-PLATFORMS = ["climate", "sensor"]
+PLATFORMS = [Platform.CLIMATE, Platform.SENSOR]
 
 
 class MillDataUpdateCoordinator(DataUpdateCoordinator):
diff --git a/homeassistant/components/minecraft_server/__init__.py b/homeassistant/components/minecraft_server/__init__.py
index 4876f6ea1fbc..d8f424544982 100644
--- a/homeassistant/components/minecraft_server/__init__.py
+++ b/homeassistant/components/minecraft_server/__init__.py
@@ -7,7 +7,7 @@ import logging
 from mcstatus.server import MinecraftServer as MCStatus
 
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import CONF_HOST, CONF_NAME, CONF_PORT
+from homeassistant.const import CONF_HOST, CONF_NAME, CONF_PORT, Platform
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers.dispatcher import (
     async_dispatcher_connect,
@@ -20,7 +20,7 @@ from homeassistant.helpers.typing import ConfigType
 from . import helpers
 from .const import DOMAIN, MANUFACTURER, SCAN_INTERVAL, SIGNAL_NAME_PREFIX
 
-PLATFORMS = ["binary_sensor", "sensor"]
+PLATFORMS = [Platform.BINARY_SENSOR, Platform.SENSOR]
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mobile_app/__init__.py b/homeassistant/components/mobile_app/__init__.py
index a83931bab232..097c4feb3832 100644
--- a/homeassistant/components/mobile_app/__init__.py
+++ b/homeassistant/components/mobile_app/__init__.py
@@ -6,7 +6,7 @@ from homeassistant.components.webhook import (
     async_register as webhook_register,
     async_unregister as webhook_unregister,
 )
-from homeassistant.const import ATTR_DEVICE_ID, CONF_WEBHOOK_ID
+from homeassistant.const import ATTR_DEVICE_ID, CONF_WEBHOOK_ID, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import device_registry as dr, discovery
 from homeassistant.helpers.typing import ConfigType
@@ -31,7 +31,7 @@ from .helpers import savable_state
 from .http_api import RegistrationsView
 from .webhook import handle_webhook
 
-PLATFORMS = "sensor", "binary_sensor", "device_tracker"
+PLATFORMS = [Platform.SENSOR, Platform.BINARY_SENSOR, Platform.DEVICE_TRACKER]
 
 
 async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
diff --git a/homeassistant/components/modem_callerid/__init__.py b/homeassistant/components/modem_callerid/__init__.py
index afa79f1d2108..d66be29f8b72 100644
--- a/homeassistant/components/modem_callerid/__init__.py
+++ b/homeassistant/components/modem_callerid/__init__.py
@@ -1,15 +1,14 @@
 """The Modem Caller ID integration."""
 from phone_modem import PhoneModem
 
-from homeassistant.components.sensor import DOMAIN as SENSOR_DOMAIN
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import CONF_DEVICE
+from homeassistant.const import CONF_DEVICE, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import ConfigEntryNotReady
 
 from .const import DATA_KEY_API, DOMAIN, EXCEPTIONS
 
-PLATFORMS = [SENSOR_DOMAIN]
+PLATFORMS = [Platform.SENSOR]
 
 
 async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
diff --git a/homeassistant/components/modern_forms/__init__.py b/homeassistant/components/modern_forms/__init__.py
index 46ab0877bbb5..dfd6a9a88074 100644
--- a/homeassistant/components/modern_forms/__init__.py
+++ b/homeassistant/components/modern_forms/__init__.py
@@ -11,13 +11,8 @@ from aiomodernforms import (
 )
 from aiomodernforms.models import Device as ModernFormsDeviceState
 
-from homeassistant.components.binary_sensor import DOMAIN as BINARY_SENSOR_DOMAIN
-from homeassistant.components.fan import DOMAIN as FAN_DOMAIN
-from homeassistant.components.light import DOMAIN as LIGHT_DOMAIN
-from homeassistant.components.sensor import DOMAIN as SENSOR_DOMAIN
-from homeassistant.components.switch import DOMAIN as SWITCH_DOMAIN
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import CONF_HOST
+from homeassistant.const import CONF_HOST, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 from homeassistant.helpers.entity import DeviceInfo
@@ -31,11 +26,11 @@ from .const import DOMAIN
 
 SCAN_INTERVAL = timedelta(seconds=5)
 PLATFORMS = [
-    BINARY_SENSOR_DOMAIN,
-    LIGHT_DOMAIN,
-    FAN_DOMAIN,
-    SENSOR_DOMAIN,
-    SWITCH_DOMAIN,
+    Platform.BINARY_SENSOR,
+    Platform.LIGHT,
+    Platform.FAN,
+    Platform.SENSOR,
+    Platform.SWITCH,
 ]
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/monoprice/__init__.py b/homeassistant/components/monoprice/__init__.py
index 90f1e2976efb..e018ef94f7d9 100644
--- a/homeassistant/components/monoprice/__init__.py
+++ b/homeassistant/components/monoprice/__init__.py
@@ -5,7 +5,7 @@ from pymonoprice import get_monoprice
 from serial import SerialException
 
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import CONF_PORT
+from homeassistant.const import CONF_PORT, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import ConfigEntryNotReady
 
@@ -17,7 +17,7 @@ from .const import (
     UNDO_UPDATE_LISTENER,
 )
 
-PLATFORMS = ["media_player"]
+PLATFORMS = [Platform.MEDIA_PLAYER]
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/motion_blinds/const.py b/homeassistant/components/motion_blinds/const.py
index fca6b694fad8..01f74c4ef4d3 100644
--- a/homeassistant/components/motion_blinds/const.py
+++ b/homeassistant/components/motion_blinds/const.py
@@ -1,9 +1,11 @@
 """Constants for the Motion Blinds component."""
+from homeassistant.const import Platform
+
 DOMAIN = "motion_blinds"
 MANUFACTURER = "Motion Blinds, Coulisse B.V."
 DEFAULT_GATEWAY_NAME = "Motion Blinds Gateway"
 
-PLATFORMS = ["cover", "sensor"]
+PLATFORMS = [Platform.COVER, Platform.SENSOR]
 
 CONF_WAIT_FOR_PUSH = "wait_for_push"
 CONF_INTERFACE = "interface"
diff --git a/homeassistant/components/mullvad/__init__.py b/homeassistant/components/mullvad/__init__.py
index fe02983633ba..386108fb0ff2 100644
--- a/homeassistant/components/mullvad/__init__.py
+++ b/homeassistant/components/mullvad/__init__.py
@@ -6,12 +6,13 @@ import async_timeout
 from mullvad_api import MullvadAPI
 
 from homeassistant.config_entries import ConfigEntry
+from homeassistant.const import Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import update_coordinator
 
 from .const import DOMAIN
 
-PLATFORMS = ["binary_sensor"]
+PLATFORMS = [Platform.BINARY_SENSOR]
 
 
 async def async_setup_entry(hass: HomeAssistant, entry: dict) -> bool:
diff --git a/homeassistant/components/mutesync/__init__.py b/homeassistant/components/mutesync/__init__.py
index af14725a3b42..50e485d96d23 100644
--- a/homeassistant/components/mutesync/__init__.py
+++ b/homeassistant/components/mutesync/__init__.py
@@ -7,12 +7,13 @@ import async_timeout
 import mutesync
 
 from homeassistant.config_entries import ConfigEntry
+from homeassistant.const import Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import update_coordinator
 
 from .const import DOMAIN, UPDATE_INTERVAL_IN_MEETING, UPDATE_INTERVAL_NOT_IN_MEETING
 
-PLATFORMS = ["binary_sensor"]
+PLATFORMS = [Platform.BINARY_SENSOR]
 
 
 async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
diff --git a/homeassistant/components/myq/const.py b/homeassistant/components/myq/const.py
index 9f3a434ae370..3c7b5ba373ad 100644
--- a/homeassistant/components/myq/const.py
+++ b/homeassistant/components/myq/const.py
@@ -14,11 +14,12 @@ from homeassistant.const import (
     STATE_ON,
     STATE_OPEN,
     STATE_OPENING,
+    Platform,
 )
 
 DOMAIN = "myq"
 
-PLATFORMS = ["cover", "binary_sensor", "light"]
+PLATFORMS = [Platform.COVER, Platform.BINARY_SENSOR, Platform.LIGHT]
 
 MYQ_TO_HASS = {
     MYQ_COVER_STATE_CLOSED: STATE_CLOSED,
diff --git a/homeassistant/components/nam/__init__.py b/homeassistant/components/nam/__init__.py
index 094c286b9313..f9e625bfe16c 100644
--- a/homeassistant/components/nam/__init__.py
+++ b/homeassistant/components/nam/__init__.py
@@ -18,7 +18,7 @@ from nettigo_air_monitor import (
 
 from homeassistant.components.air_quality import DOMAIN as AIR_QUALITY_PLATFORM
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import CONF_HOST, CONF_PASSWORD, CONF_USERNAME
+from homeassistant.const import CONF_HOST, CONF_PASSWORD, CONF_USERNAME, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import entity_registry
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
@@ -42,7 +42,7 @@ from .const import (
 
 _LOGGER = logging.getLogger(__name__)
 
-PLATFORMS = ["button", "sensor"]
+PLATFORMS = [Platform.BUTTON, Platform.SENSOR]
 
 
 async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
diff --git a/homeassistant/components/nanoleaf/__init__.py b/homeassistant/components/nanoleaf/__init__.py
index 3ed82ec21460..4560f3404165 100644
--- a/homeassistant/components/nanoleaf/__init__.py
+++ b/homeassistant/components/nanoleaf/__init__.py
@@ -7,7 +7,7 @@ from dataclasses import dataclass
 from aionanoleaf import EffectsEvent, InvalidToken, Nanoleaf, StateEvent, Unavailable
 
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import CONF_HOST, CONF_TOKEN
+from homeassistant.const import CONF_HOST, CONF_TOKEN, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import ConfigEntryAuthFailed, ConfigEntryNotReady
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
@@ -15,7 +15,7 @@ from homeassistant.helpers.dispatcher import async_dispatcher_send
 
 from .const import DOMAIN
 
-PLATFORMS = ["button", "light"]
+PLATFORMS = [Platform.BUTTON, Platform.LIGHT]
 
 
 @dataclass
diff --git a/homeassistant/components/neato/__init__.py b/homeassistant/components/neato/__init__.py
index 6310e81cdd0d..c1e193b74062 100644
--- a/homeassistant/components/neato/__init__.py
+++ b/homeassistant/components/neato/__init__.py
@@ -7,7 +7,7 @@ from pybotvac.exceptions import NeatoException
 import voluptuous as vol
 
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import CONF_CLIENT_ID, CONF_CLIENT_SECRET, CONF_TOKEN
+from homeassistant.const import CONF_CLIENT_ID, CONF_CLIENT_SECRET, CONF_TOKEN, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import ConfigEntryAuthFailed, ConfigEntryNotReady
 from homeassistant.helpers import config_entry_oauth2_flow, config_validation as cv
@@ -32,7 +32,7 @@ CONFIG_SCHEMA = vol.Schema(
     extra=vol.ALLOW_EXTRA,
 )
 
-PLATFORMS = ["camera", "vacuum", "switch", "sensor"]
+PLATFORMS = [Platform.CAMERA, Platform.VACUUM, Platform.SWITCH, Platform.SENSOR]
 
 
 async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
diff --git a/homeassistant/components/nest/__init__.py b/homeassistant/components/nest/__init__.py
index fb39188710cc..382edb80ca5a 100644
--- a/homeassistant/components/nest/__init__.py
+++ b/homeassistant/components/nest/__init__.py
@@ -24,6 +24,7 @@ from homeassistant.const import (
     CONF_MONITORED_CONDITIONS,
     CONF_SENSORS,
     CONF_STRUCTURE,
+    Platform,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import (
@@ -82,7 +83,7 @@ CONFIG_SCHEMA = vol.Schema(
 )
 
 # Platforms for SDM API
-PLATFORMS = ["sensor", "camera", "climate"]
+PLATFORMS = [Platform.SENSOR, Platform.CAMERA, Platform.CLIMATE]
 WEB_AUTH_DOMAIN = DOMAIN
 INSTALLED_AUTH_DOMAIN = f"{DOMAIN}.installed"
 
diff --git a/homeassistant/components/netatmo/const.py b/homeassistant/components/netatmo/const.py
index a642d59ff1e7..5fda87595400 100644
--- a/homeassistant/components/netatmo/const.py
+++ b/homeassistant/components/netatmo/const.py
@@ -1,9 +1,5 @@
 """Constants used by the Netatmo component."""
-from homeassistant.components.camera import DOMAIN as CAMERA_DOMAIN
-from homeassistant.components.climate import DOMAIN as CLIMATE_DOMAIN
-from homeassistant.components.light import DOMAIN as LIGHT_DOMAIN
-from homeassistant.components.select import DOMAIN as SELECT_DOMAIN
-from homeassistant.components.sensor import DOMAIN as SENSOR_DOMAIN
+from homeassistant.const import Platform
 
 API = "api"
 
@@ -11,7 +7,13 @@ DOMAIN = "netatmo"
 MANUFACTURER = "Netatmo"
 DEFAULT_ATTRIBUTION = f"Data provided by {MANUFACTURER}"
 
-PLATFORMS = [CAMERA_DOMAIN, CLIMATE_DOMAIN, LIGHT_DOMAIN, SELECT_DOMAIN, SENSOR_DOMAIN]
+PLATFORMS = [
+    Platform.CAMERA,
+    Platform.CLIMATE,
+    Platform.LIGHT,
+    Platform.SELECT,
+    Platform.SENSOR,
+]
 
 NETATMO_SCOPES = [
     "access_camera",
diff --git a/homeassistant/components/netgear/const.py b/homeassistant/components/netgear/const.py
index cba2d7ff8754..44d14379eb5a 100644
--- a/homeassistant/components/netgear/const.py
+++ b/homeassistant/components/netgear/const.py
@@ -1,9 +1,11 @@
 """Netgear component constants."""
 from datetime import timedelta
 
+from homeassistant.const import Platform
+
 DOMAIN = "netgear"
 
-PLATFORMS = ["device_tracker", "sensor"]
+PLATFORMS = [Platform.DEVICE_TRACKER, Platform.SENSOR]
 
 CONF_CONSIDER_HOME = "consider_home"
 
diff --git a/homeassistant/components/nexia/const.py b/homeassistant/components/nexia/const.py
index ada75ed580f1..2c6b5195bf8a 100644
--- a/homeassistant/components/nexia/const.py
+++ b/homeassistant/components/nexia/const.py
@@ -1,6 +1,7 @@
 """Nexia constants."""
+from homeassistant.const import Platform
 
-PLATFORMS = ["sensor", "binary_sensor", "climate", "scene"]
+PLATFORMS = [Platform.SENSOR, Platform.BINARY_SENSOR, Platform.CLIMATE, Platform.SCENE]
 
 ATTRIBUTION = "Data provided by mynexia.com"
 
diff --git a/homeassistant/components/nightscout/__init__.py b/homeassistant/components/nightscout/__init__.py
index 28906ce6e888..8e0c6c2b791f 100644
--- a/homeassistant/components/nightscout/__init__.py
+++ b/homeassistant/components/nightscout/__init__.py
@@ -5,7 +5,7 @@ from aiohttp import ClientError
 from py_nightscout import Api as NightscoutAPI
 
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import CONF_API_KEY, CONF_URL
+from homeassistant.const import CONF_API_KEY, CONF_URL, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import ConfigEntryNotReady
 from homeassistant.helpers import device_registry as dr
@@ -14,7 +14,7 @@ from homeassistant.helpers.entity import SLOW_UPDATE_WARNING
 
 from .const import DOMAIN
 
-PLATFORMS = ["sensor"]
+PLATFORMS = [Platform.SENSOR]
 _API_TIMEOUT = SLOW_UPDATE_WARNING - 1
 
 
diff --git a/homeassistant/components/nmap_tracker/const.py b/homeassistant/components/nmap_tracker/const.py
index e25368b22cc7..c7c1342036ee 100644
--- a/homeassistant/components/nmap_tracker/const.py
+++ b/homeassistant/components/nmap_tracker/const.py
@@ -1,9 +1,11 @@
 """The Nmap Tracker integration."""
 from typing import Final
 
+from homeassistant.const import Platform
+
 DOMAIN: Final = "nmap_tracker"
 
-PLATFORMS: Final = ["device_tracker"]
+PLATFORMS: Final = [Platform.DEVICE_TRACKER]
 
 NMAP_TRACKED_DEVICES: Final = "nmap_tracked_devices"
 
diff --git a/homeassistant/components/notion/__init__.py b/homeassistant/components/notion/__init__.py
index 4aa8447eb9a8..0e841e12bbe5 100644
--- a/homeassistant/components/notion/__init__.py
+++ b/homeassistant/components/notion/__init__.py
@@ -9,7 +9,7 @@ from aionotion import async_get_client
 from aionotion.errors import InvalidCredentialsError, NotionError
 
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import CONF_PASSWORD, CONF_USERNAME
+from homeassistant.const import CONF_PASSWORD, CONF_USERNAME, Platform
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.exceptions import ConfigEntryAuthFailed, ConfigEntryNotReady
 from homeassistant.helpers import (
@@ -26,7 +26,7 @@ from homeassistant.helpers.update_coordinator import (
 
 from .const import DOMAIN, LOGGER
 
-PLATFORMS = ["binary_sensor", "sensor"]
+PLATFORMS = [Platform.BINARY_SENSOR, Platform.SENSOR]
 
 ATTR_SYSTEM_MODE = "system_mode"
 ATTR_SYSTEM_NAME = "system_name"
diff --git a/homeassistant/components/nuheat/const.py b/homeassistant/components/nuheat/const.py
index 9c4fc3682263..619d4a11e2a0 100644
--- a/homeassistant/components/nuheat/const.py
+++ b/homeassistant/components/nuheat/const.py
@@ -1,8 +1,9 @@
 """Constants for NuHeat thermostats."""
+from homeassistant.const import Platform
 
 DOMAIN = "nuheat"
 
-PLATFORMS = ["climate"]
+PLATFORMS = [Platform.CLIMATE]
 
 CONF_SERIAL_NUMBER = "serial_number"
 
diff --git a/homeassistant/components/nuki/__init__.py b/homeassistant/components/nuki/__init__.py
index 99def8d41178..a7393666204f 100644
--- a/homeassistant/components/nuki/__init__.py
+++ b/homeassistant/components/nuki/__init__.py
@@ -10,7 +10,13 @@ from requests.exceptions import RequestException
 
 from homeassistant import exceptions
 from homeassistant.config_entries import SOURCE_IMPORT
-from homeassistant.const import CONF_HOST, CONF_PLATFORM, CONF_PORT, CONF_TOKEN
+from homeassistant.const import (
+    CONF_HOST,
+    CONF_PLATFORM,
+    CONF_PORT,
+    CONF_TOKEN,
+    Platform,
+)
 from homeassistant.helpers.update_coordinator import (
     CoordinatorEntity,
     DataUpdateCoordinator,
@@ -30,7 +36,7 @@ from .const import (
 
 _LOGGER = logging.getLogger(__name__)
 
-PLATFORMS = ["binary_sensor", "lock"]
+PLATFORMS = [Platform.BINARY_SENSOR, Platform.LOCK]
 UPDATE_INTERVAL = timedelta(seconds=30)
 
 
diff --git a/homeassistant/components/nut/const.py b/homeassistant/components/nut/const.py
index 23ef55f3f09c..ffb21a545bbe 100644
--- a/homeassistant/components/nut/const.py
+++ b/homeassistant/components/nut/const.py
@@ -18,12 +18,13 @@ from homeassistant.const import (
     POWER_WATT,
     TEMP_CELSIUS,
     TIME_SECONDS,
+    Platform,
 )
 from homeassistant.helpers.entity import EntityCategory
 
 DOMAIN = "nut"
 
-PLATFORMS = ["sensor"]
+PLATFORMS = [Platform.SENSOR]
 
 UNDO_UPDATE_LISTENER = "undo_update_listener"
 
diff --git a/homeassistant/components/nws/__init__.py b/homeassistant/components/nws/__init__.py
index 02327336035c..3be70c95b7ae 100644
--- a/homeassistant/components/nws/__init__.py
+++ b/homeassistant/components/nws/__init__.py
@@ -8,7 +8,7 @@ import logging
 from pynws import SimpleNWS
 
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import CONF_API_KEY, CONF_LATITUDE, CONF_LONGITUDE
+from homeassistant.const import CONF_API_KEY, CONF_LATITUDE, CONF_LONGITUDE, Platform
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers import debounce
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
@@ -29,7 +29,7 @@ from .const import (
 
 _LOGGER = logging.getLogger(__name__)
 
-PLATFORMS = ["sensor", "weather"]
+PLATFORMS = [Platform.SENSOR, Platform.WEATHER]
 
 DEFAULT_SCAN_INTERVAL = datetime.timedelta(minutes=10)
 FAILED_SCAN_INTERVAL = datetime.timedelta(minutes=1)
diff --git a/homeassistant/components/nzbget/__init__.py b/homeassistant/components/nzbget/__init__.py
index ebb3a7e4e661..40ad666aaf4d 100644
--- a/homeassistant/components/nzbget/__init__.py
+++ b/homeassistant/components/nzbget/__init__.py
@@ -10,6 +10,7 @@ from homeassistant.const import (
     CONF_SCAN_INTERVAL,
     CONF_SSL,
     CONF_USERNAME,
+    Platform,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import config_validation as cv
@@ -32,7 +33,7 @@ from .const import (
 )
 from .coordinator import NZBGetDataUpdateCoordinator
 
-PLATFORMS = ["sensor", "switch"]
+PLATFORMS = [Platform.SENSOR, Platform.SWITCH]
 
 CONFIG_SCHEMA = vol.Schema(
     vol.All(
diff --git a/homeassistant/components/octoprint/__init__.py b/homeassistant/components/octoprint/__init__.py
index 706f54ac708c..102da9240a91 100644
--- a/homeassistant/components/octoprint/__init__.py
+++ b/homeassistant/components/octoprint/__init__.py
@@ -18,6 +18,7 @@ from homeassistant.const import (
     CONF_PORT,
     CONF_SENSORS,
     CONF_SSL,
+    Platform,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
@@ -49,7 +50,7 @@ def ensure_valid_path(value):
     return value
 
 
-PLATFORMS = ["binary_sensor", "sensor"]
+PLATFORMS = [Platform.BINARY_SENSOR, Platform.SENSOR]
 DEFAULT_NAME = "OctoPrint"
 CONF_NUMBER_OF_TOOLS = "number_of_tools"
 CONF_BED = "bed"
diff --git a/homeassistant/components/omnilogic/__init__.py b/homeassistant/components/omnilogic/__init__.py
index ee43456285b0..8a55eff6bb0b 100644
--- a/homeassistant/components/omnilogic/__init__.py
+++ b/homeassistant/components/omnilogic/__init__.py
@@ -4,7 +4,7 @@ import logging
 from omnilogic import LoginException, OmniLogic, OmniLogicException
 
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import CONF_PASSWORD, CONF_USERNAME
+from homeassistant.const import CONF_PASSWORD, CONF_USERNAME, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import ConfigEntryNotReady
 from homeassistant.helpers import aiohttp_client
@@ -20,7 +20,7 @@ from .const import (
 
 _LOGGER = logging.getLogger(__name__)
 
-PLATFORMS = ["sensor", "switch"]
+PLATFORMS = [Platform.SENSOR, Platform.SWITCH]
 
 
 async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
diff --git a/homeassistant/components/ondilo_ico/__init__.py b/homeassistant/components/ondilo_ico/__init__.py
index 2d00af2a78b7..e827b32f48a1 100644
--- a/homeassistant/components/ondilo_ico/__init__.py
+++ b/homeassistant/components/ondilo_ico/__init__.py
@@ -1,6 +1,7 @@
 """The Ondilo ICO integration."""
 
 from homeassistant.config_entries import ConfigEntry
+from homeassistant.const import Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import config_entry_oauth2_flow
 
@@ -8,7 +9,7 @@ from . import api, config_flow
 from .const import DOMAIN
 from .oauth_impl import OndiloOauth2Implementation
 
-PLATFORMS = ["sensor"]
+PLATFORMS = [Platform.SENSOR]
 
 
 async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
diff --git a/homeassistant/components/onvif/__init__.py b/homeassistant/components/onvif/__init__.py
index 658ee7502f45..f6a6eabeb68d 100644
--- a/homeassistant/components/onvif/__init__.py
+++ b/homeassistant/components/onvif/__init__.py
@@ -12,6 +12,7 @@ from homeassistant.const import (
     EVENT_HOMEASSISTANT_STOP,
     HTTP_BASIC_AUTHENTICATION,
     HTTP_DIGEST_AUTHENTICATION,
+    Platform,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import ConfigEntryNotReady
@@ -82,10 +83,10 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
 
     hass.data[DOMAIN][entry.unique_id] = device
 
-    platforms = ["camera"]
+    platforms = [Platform.CAMERA]
 
     if device.capabilities.events:
-        platforms += ["binary_sensor", "sensor"]
+        platforms += [Platform.BINARY_SENSOR, Platform.SENSOR]
 
     hass.config_entries.async_setup_platforms(entry, platforms)
 
diff --git a/homeassistant/components/opengarage/__init__.py b/homeassistant/components/opengarage/__init__.py
index a8c8d50ce63f..76ffcc42bd16 100644
--- a/homeassistant/components/opengarage/__init__.py
+++ b/homeassistant/components/opengarage/__init__.py
@@ -7,7 +7,7 @@ import logging
 import opengarage
 
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import CONF_HOST, CONF_PORT, CONF_VERIFY_SSL
+from homeassistant.const import CONF_HOST, CONF_PORT, CONF_VERIFY_SSL, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import update_coordinator
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
@@ -16,7 +16,7 @@ from .const import CONF_DEVICE_KEY, DOMAIN
 
 _LOGGER = logging.getLogger(__name__)
 
-PLATFORMS = ["binary_sensor", "cover", "sensor"]
+PLATFORMS = [Platform.BINARY_SENSOR, Platform.COVER, Platform.SENSOR]
 
 
 async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
diff --git a/homeassistant/components/opentherm_gw/__init__.py b/homeassistant/components/opentherm_gw/__init__.py
index f54a0e783cc3..962379729dbf 100644
--- a/homeassistant/components/opentherm_gw/__init__.py
+++ b/homeassistant/components/opentherm_gw/__init__.py
@@ -6,9 +6,6 @@ import pyotgw
 import pyotgw.vars as gw_vars
 import voluptuous as vol
 
-from homeassistant.components.binary_sensor import DOMAIN as COMP_BINARY_SENSOR
-from homeassistant.components.climate import DOMAIN as COMP_CLIMATE
-from homeassistant.components.sensor import DOMAIN as COMP_SENSOR
 from homeassistant.config_entries import SOURCE_IMPORT
 from homeassistant.const import (
     ATTR_DATE,
@@ -23,6 +20,7 @@ from homeassistant.const import (
     PRECISION_HALVES,
     PRECISION_TENTHS,
     PRECISION_WHOLE,
+    Platform,
 )
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.device_registry import (
@@ -80,7 +78,7 @@ CONFIG_SCHEMA = vol.Schema(
     extra=vol.ALLOW_EXTRA,
 )
 
-PLATFORMS = [COMP_BINARY_SENSOR, COMP_CLIMATE, COMP_SENSOR]
+PLATFORMS = [Platform.BINARY_SENSOR, Platform.CLIMATE, Platform.SENSOR]
 
 
 async def options_updated(hass, entry):
diff --git a/homeassistant/components/openuv/__init__.py b/homeassistant/components/openuv/__init__.py
index 77755fdca215..a60414e2872f 100644
--- a/homeassistant/components/openuv/__init__.py
+++ b/homeassistant/components/openuv/__init__.py
@@ -15,6 +15,7 @@ from homeassistant.const import (
     CONF_LATITUDE,
     CONF_LONGITUDE,
     CONF_SENSORS,
+    Platform,
 )
 from homeassistant.core import HomeAssistant, ServiceCall, callback
 from homeassistant.exceptions import ConfigEntryNotReady
@@ -44,7 +45,7 @@ NOTIFICATION_TITLE = "OpenUV Component Setup"
 
 TOPIC_UPDATE = f"{DOMAIN}_data_update"
 
-PLATFORMS = ["binary_sensor", "sensor"]
+PLATFORMS = [Platform.BINARY_SENSOR, Platform.SENSOR]
 
 
 async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
diff --git a/homeassistant/components/openweathermap/const.py b/homeassistant/components/openweathermap/const.py
index 74aa767e44d8..08568b02a17f 100644
--- a/homeassistant/components/openweathermap/const.py
+++ b/homeassistant/components/openweathermap/const.py
@@ -40,6 +40,7 @@ from homeassistant.const import (
     SPEED_METERS_PER_SECOND,
     TEMP_CELSIUS,
     UV_INDEX,
+    Platform,
 )
 
 DOMAIN = "openweathermap"
@@ -70,7 +71,7 @@ ATTR_API_UV_INDEX = "uv_index"
 ATTR_API_WEATHER_CODE = "weather_code"
 ATTR_API_FORECAST = "forecast"
 UPDATE_LISTENER = "update_listener"
-PLATFORMS = ["sensor", "weather"]
+PLATFORMS = [Platform.SENSOR, Platform.WEATHER]
 
 FORECAST_MODE_HOURLY = "hourly"
 FORECAST_MODE_DAILY = "daily"
diff --git a/homeassistant/components/ovo_energy/__init__.py b/homeassistant/components/ovo_energy/__init__.py
index 2b69ca0ade7d..fceff685d6f5 100644
--- a/homeassistant/components/ovo_energy/__init__.py
+++ b/homeassistant/components/ovo_energy/__init__.py
@@ -10,7 +10,7 @@ from ovoenergy import OVODailyUsage
 from ovoenergy.ovoenergy import OVOEnergy
 
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import CONF_PASSWORD, CONF_USERNAME
+from homeassistant.const import CONF_PASSWORD, CONF_USERNAME, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import ConfigEntryAuthFailed, ConfigEntryNotReady
 from homeassistant.helpers.device_registry import DeviceEntryType
@@ -26,7 +26,7 @@ from .const import DATA_CLIENT, DATA_COORDINATOR, DOMAIN
 
 _LOGGER = logging.getLogger(__name__)
 
-PLATFORMS = ["sensor"]
+PLATFORMS = [Platform.SENSOR]
 
 
 async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
diff --git a/homeassistant/components/owntracks/__init__.py b/homeassistant/components/owntracks/__init__.py
index 24c7cc74d529..3cae9505ee8b 100644
--- a/homeassistant/components/owntracks/__init__.py
+++ b/homeassistant/components/owntracks/__init__.py
@@ -14,6 +14,7 @@ from homeassistant.const import (
     ATTR_LATITUDE,
     ATTR_LONGITUDE,
     CONF_WEBHOOK_ID,
+    Platform,
 )
 from homeassistant.core import callback
 import homeassistant.helpers.config_validation as cv
@@ -32,7 +33,7 @@ CONF_MQTT_TOPIC = "mqtt_topic"
 CONF_REGION_MAPPING = "region_mapping"
 CONF_EVENTS_ONLY = "events_only"
 BEACON_DEV_ID = "beacon"
-PLATFORMS = ["device_tracker"]
+PLATFORMS = [Platform.DEVICE_TRACKER]
 
 DEFAULT_OWNTRACKS_TOPIC = "owntracks/#"