From 24314f1b112b00af514ef84379389d5e8cad0e27 Mon Sep 17 00:00:00 2001
From: epenet <6771947+epenet@users.noreply.github.com>
Date: Mon, 10 Jan 2022 10:45:11 +0100
Subject: [PATCH] Use Platform enum in load_platform [m-z] (#63751)

---
 homeassistant/components/maxcube/__init__.py        | 6 +++---
 homeassistant/components/melissa/__init__.py        | 6 ++++--
 homeassistant/components/mobile_app/__init__.py     | 2 +-
 homeassistant/components/mycroft/__init__.py        | 4 ++--
 homeassistant/components/ness_alarm/__init__.py     | 7 +++++--
 homeassistant/components/notify_events/__init__.py  | 4 ++--
 homeassistant/components/numato/__init__.py         | 7 ++++---
 homeassistant/components/ombi/__init__.py           | 3 ++-
 homeassistant/components/opnsense/__init__.py       | 4 ++--
 homeassistant/components/rpi_camera/__init__.py     | 4 ++--
 homeassistant/components/sabnzbd/__init__.py        | 3 ++-
 homeassistant/components/satel_integra/__init__.py  | 8 ++++----
 homeassistant/components/schluter/__init__.py       | 4 ++--
 homeassistant/components/sisyphus/__init__.py       | 8 +++++---
 homeassistant/components/sleepiq/__init__.py        | 6 +++---
 homeassistant/components/smarty/__init__.py         | 8 ++++----
 homeassistant/components/spc/__init__.py            | 7 +++++--
 homeassistant/components/stiebel_eltron/__init__.py | 4 ++--
 homeassistant/components/tibber/__init__.py         | 6 +++++-
 homeassistant/components/tplink_lte/__init__.py     | 3 ++-
 homeassistant/components/updater/__init__.py        | 4 ++--
 homeassistant/components/waterfurnace/__init__.py   | 9 +++++++--
 homeassistant/components/webostv/__init__.py        | 9 +++++++--
 homeassistant/components/zodiac/__init__.py         | 5 ++++-
 homeassistant/components/zoneminder/__init__.py     | 3 ++-
 25 files changed, 83 insertions(+), 51 deletions(-)

diff --git a/homeassistant/components/maxcube/__init__.py b/homeassistant/components/maxcube/__init__.py
index e6acda0f5bf..fe217d851e9 100644
--- a/homeassistant/components/maxcube/__init__.py
+++ b/homeassistant/components/maxcube/__init__.py
@@ -7,7 +7,7 @@ import time
 from maxcube.cube import MaxCube
 import voluptuous as vol
 
-from homeassistant.const import CONF_HOST, CONF_PORT, CONF_SCAN_INTERVAL
+from homeassistant.const import CONF_HOST, CONF_PORT, CONF_SCAN_INTERVAL, Platform
 from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import load_platform
@@ -76,8 +76,8 @@ def setup(hass: HomeAssistant, config: ConfigType) -> bool:
     if connection_failed >= len(gateways):
         return False
 
-    load_platform(hass, "climate", DOMAIN, {}, config)
-    load_platform(hass, "binary_sensor", DOMAIN, {}, config)
+    load_platform(hass, Platform.CLIMATE, DOMAIN, {}, config)
+    load_platform(hass, Platform.BINARY_SENSOR, DOMAIN, {}, config)
 
     return True
 
diff --git a/homeassistant/components/melissa/__init__.py b/homeassistant/components/melissa/__init__.py
index e2ec20f8fc9..10027999dda 100644
--- a/homeassistant/components/melissa/__init__.py
+++ b/homeassistant/components/melissa/__init__.py
@@ -2,7 +2,7 @@
 import melissa
 import voluptuous as vol
 
-from homeassistant.const import CONF_PASSWORD, CONF_USERNAME
+from homeassistant.const import CONF_PASSWORD, CONF_USERNAME, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.discovery import async_load_platform
@@ -34,5 +34,7 @@ async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
     await api.async_connect()
     hass.data[DATA_MELISSA] = api
 
-    hass.async_create_task(async_load_platform(hass, "climate", DOMAIN, {}, config))
+    hass.async_create_task(
+        async_load_platform(hass, Platform.CLIMATE, DOMAIN, {}, config)
+    )
     return True
diff --git a/homeassistant/components/mobile_app/__init__.py b/homeassistant/components/mobile_app/__init__.py
index 15e9362d836..9f92285625b 100644
--- a/homeassistant/components/mobile_app/__init__.py
+++ b/homeassistant/components/mobile_app/__init__.py
@@ -61,7 +61,7 @@ async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
             )
 
     hass.async_create_task(
-        discovery.async_load_platform(hass, "notify", DOMAIN, {}, config)
+        discovery.async_load_platform(hass, Platform.NOTIFY, DOMAIN, {}, config)
     )
 
     websocket_api.async_setup_commands(hass)
diff --git a/homeassistant/components/mycroft/__init__.py b/homeassistant/components/mycroft/__init__.py
index 0bcb5e93c5c..7c4b75aaad1 100644
--- a/homeassistant/components/mycroft/__init__.py
+++ b/homeassistant/components/mycroft/__init__.py
@@ -1,7 +1,7 @@
 """Support for Mycroft AI."""
 import voluptuous as vol
 
-from homeassistant.const import CONF_HOST
+from homeassistant.const import CONF_HOST, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
@@ -17,5 +17,5 @@ CONFIG_SCHEMA = vol.Schema(
 def setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the Mycroft component."""
     hass.data[DOMAIN] = config[DOMAIN][CONF_HOST]
-    discovery.load_platform(hass, "notify", DOMAIN, {}, config)
+    discovery.load_platform(hass, Platform.NOTIFY, DOMAIN, {}, config)
     return True
diff --git a/homeassistant/components/ness_alarm/__init__.py b/homeassistant/components/ness_alarm/__init__.py
index a85e1b97921..5eb33be7acb 100644
--- a/homeassistant/components/ness_alarm/__init__.py
+++ b/homeassistant/components/ness_alarm/__init__.py
@@ -15,6 +15,7 @@ from homeassistant.const import (
     CONF_HOST,
     CONF_SCAN_INTERVAL,
     EVENT_HOMEASSISTANT_STOP,
+    Platform,
 )
 from homeassistant.core import HomeAssistant, ServiceCall
 from homeassistant.helpers import config_validation as cv
@@ -111,10 +112,12 @@ async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
     hass.bus.async_listen_once(EVENT_HOMEASSISTANT_STOP, _close)
 
     hass.async_create_task(
-        async_load_platform(hass, "binary_sensor", DOMAIN, {CONF_ZONES: zones}, config)
+        async_load_platform(
+            hass, Platform.BINARY_SENSOR, DOMAIN, {CONF_ZONES: zones}, config
+        )
     )
     hass.async_create_task(
-        async_load_platform(hass, "alarm_control_panel", DOMAIN, {}, config)
+        async_load_platform(hass, Platform.ALARM_CONTROL_PANEL, DOMAIN, {}, config)
     )
 
     def on_zone_change(zone_id: int, state: bool):
diff --git a/homeassistant/components/notify_events/__init__.py b/homeassistant/components/notify_events/__init__.py
index 60d463a8768..12efa693b19 100644
--- a/homeassistant/components/notify_events/__init__.py
+++ b/homeassistant/components/notify_events/__init__.py
@@ -1,7 +1,7 @@
 """The notify_events component."""
 import voluptuous as vol
 
-from homeassistant.const import CONF_TOKEN
+from homeassistant.const import CONF_TOKEN, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
@@ -18,5 +18,5 @@ def setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the notify_events component."""
 
     hass.data[DOMAIN] = config[DOMAIN]
-    discovery.load_platform(hass, "notify", DOMAIN, {}, config)
+    discovery.load_platform(hass, Platform.NOTIFY, DOMAIN, {}, config)
     return True
diff --git a/homeassistant/components/numato/__init__.py b/homeassistant/components/numato/__init__.py
index abc43c75895..e25183a7cff 100644
--- a/homeassistant/components/numato/__init__.py
+++ b/homeassistant/components/numato/__init__.py
@@ -13,6 +13,7 @@ from homeassistant.const import (
     EVENT_HOMEASSISTANT_START,
     EVENT_HOMEASSISTANT_STOP,
     PERCENTAGE,
+    Platform,
 )
 from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
@@ -161,9 +162,9 @@ def setup(hass: HomeAssistant, config: ConfigType) -> bool:
 
     hass.bus.listen_once(EVENT_HOMEASSISTANT_START, prepare_gpio)
 
-    load_platform(hass, "binary_sensor", DOMAIN, {}, config)
-    load_platform(hass, "sensor", DOMAIN, {}, config)
-    load_platform(hass, "switch", DOMAIN, {}, config)
+    load_platform(hass, Platform.BINARY_SENSOR, DOMAIN, {}, config)
+    load_platform(hass, Platform.SENSOR, DOMAIN, {}, config)
+    load_platform(hass, Platform.SWITCH, DOMAIN, {}, config)
     return True
 
 
diff --git a/homeassistant/components/ombi/__init__.py b/homeassistant/components/ombi/__init__.py
index 48d0f8f840a..bdf8334ff02 100644
--- a/homeassistant/components/ombi/__init__.py
+++ b/homeassistant/components/ombi/__init__.py
@@ -12,6 +12,7 @@ from homeassistant.const import (
     CONF_PORT,
     CONF_SSL,
     CONF_USERNAME,
+    Platform,
 )
 from homeassistant.core import HomeAssistant, ServiceCall
 import homeassistant.helpers.config_validation as cv
@@ -151,6 +152,6 @@ def setup(hass: HomeAssistant, config: ConfigType) -> bool:
         submit_tv_request,
         schema=SUBMIT_TV_REQUEST_SERVICE_SCHEMA,
     )
-    hass.helpers.discovery.load_platform("sensor", DOMAIN, {}, config)
+    hass.helpers.discovery.load_platform(Platform.SENSOR, DOMAIN, {}, config)
 
     return True
diff --git a/homeassistant/components/opnsense/__init__.py b/homeassistant/components/opnsense/__init__.py
index a5c1650f5a1..bd074cf5e5e 100644
--- a/homeassistant/components/opnsense/__init__.py
+++ b/homeassistant/components/opnsense/__init__.py
@@ -5,7 +5,7 @@ from pyopnsense import diagnostics
 from pyopnsense.exceptions import APIException
 import voluptuous as vol
 
-from homeassistant.const import CONF_API_KEY, CONF_URL, CONF_VERIFY_SSL
+from homeassistant.const import CONF_API_KEY, CONF_URL, CONF_VERIFY_SSL, Platform
 from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import load_platform
@@ -75,5 +75,5 @@ def setup(hass: HomeAssistant, config: ConfigType) -> bool:
         CONF_TRACKER_INTERFACE: tracker_interfaces,
     }
 
-    load_platform(hass, "device_tracker", DOMAIN, tracker_interfaces, config)
+    load_platform(hass, Platform.DEVICE_TRACKER, DOMAIN, tracker_interfaces, config)
     return True
diff --git a/homeassistant/components/rpi_camera/__init__.py b/homeassistant/components/rpi_camera/__init__.py
index ffa21b55180..15c59476ab2 100644
--- a/homeassistant/components/rpi_camera/__init__.py
+++ b/homeassistant/components/rpi_camera/__init__.py
@@ -1,7 +1,7 @@
 """The rpi_camera component."""
 import voluptuous as vol
 
-from homeassistant.const import CONF_FILE_PATH, CONF_NAME
+from homeassistant.const import CONF_FILE_PATH, CONF_NAME, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import config_validation as cv, discovery
 from homeassistant.helpers.typing import ConfigType
@@ -82,6 +82,6 @@ def setup(hass: HomeAssistant, config: ConfigType) -> bool:
         CONF_VERTICAL_FLIP: config_domain.get(CONF_VERTICAL_FLIP),
     }
 
-    discovery.load_platform(hass, "camera", DOMAIN, {}, config)
+    discovery.load_platform(hass, Platform.CAMERA, DOMAIN, {}, config)
 
     return True
diff --git a/homeassistant/components/sabnzbd/__init__.py b/homeassistant/components/sabnzbd/__init__.py
index 3cb183a6e42..37d6f54e405 100644
--- a/homeassistant/components/sabnzbd/__init__.py
+++ b/homeassistant/components/sabnzbd/__init__.py
@@ -21,6 +21,7 @@ from homeassistant.const import (
     DATA_GIGABYTES,
     DATA_MEGABYTES,
     DATA_RATE_MEGABYTES_PER_SECOND,
+    Platform,
 )
 from homeassistant.core import ServiceCall, callback
 from homeassistant.helpers import discovery
@@ -222,7 +223,7 @@ def async_setup_sabnzbd(hass, sab_api, config, name):
     if config.get(CONF_SENSORS):
         hass.data[DATA_SABNZBD] = sab_api_data
         hass.async_create_task(
-            discovery.async_load_platform(hass, "sensor", DOMAIN, {}, config)
+            discovery.async_load_platform(hass, Platform.SENSOR, DOMAIN, {}, config)
         )
 
     async def async_service_handler(service: ServiceCall) -> None:
diff --git a/homeassistant/components/satel_integra/__init__.py b/homeassistant/components/satel_integra/__init__.py
index 58a255b0283..e9edd1ff52c 100644
--- a/homeassistant/components/satel_integra/__init__.py
+++ b/homeassistant/components/satel_integra/__init__.py
@@ -5,7 +5,7 @@ import logging
 from satel_integra.satel_integra import AsyncSatel
 import voluptuous as vol
 
-from homeassistant.const import CONF_HOST, CONF_PORT, EVENT_HOMEASSISTANT_STOP
+from homeassistant.const import CONF_HOST, CONF_PORT, EVENT_HOMEASSISTANT_STOP, Platform
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.discovery import async_load_platform
@@ -124,13 +124,13 @@ async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
     _LOGGER.debug("Arm home config: %s, mode: %s ", conf, conf.get(CONF_ARM_HOME_MODE))
 
     hass.async_create_task(
-        async_load_platform(hass, "alarm_control_panel", DOMAIN, conf, config)
+        async_load_platform(hass, Platform.ALARM_CONTROL_PANEL, DOMAIN, conf, config)
     )
 
     hass.async_create_task(
         async_load_platform(
             hass,
-            "binary_sensor",
+            Platform.BINARY_SENSOR,
             DOMAIN,
             {CONF_ZONES: zones, CONF_OUTPUTS: outputs},
             config,
@@ -140,7 +140,7 @@ async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
     hass.async_create_task(
         async_load_platform(
             hass,
-            "switch",
+            Platform.SWITCH,
             DOMAIN,
             {
                 CONF_SWITCHABLE_OUTPUTS: switchable_outputs,
diff --git a/homeassistant/components/schluter/__init__.py b/homeassistant/components/schluter/__init__.py
index 64b0099ef23..5abb6b2a112 100644
--- a/homeassistant/components/schluter/__init__.py
+++ b/homeassistant/components/schluter/__init__.py
@@ -6,7 +6,7 @@ from schluter.api import Api
 from schluter.authenticator import AuthenticationState, Authenticator
 import voluptuous as vol
 
-from homeassistant.const import CONF_PASSWORD, CONF_USERNAME
+from homeassistant.const import CONF_PASSWORD, CONF_USERNAME, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
@@ -62,7 +62,7 @@ def setup(hass: HomeAssistant, config: ConfigType) -> bool:
             DATA_SCHLUTER_API: api,
             DATA_SCHLUTER_SESSION: authentication.session_id,
         }
-        discovery.load_platform(hass, "climate", DOMAIN, {}, config)
+        discovery.load_platform(hass, Platform.CLIMATE, DOMAIN, {}, config)
         return True
     if state == AuthenticationState.BAD_PASSWORD:
         _LOGGER.error("Invalid password provided")
diff --git a/homeassistant/components/sisyphus/__init__.py b/homeassistant/components/sisyphus/__init__.py
index 03e2432f5a2..cda8f0da1f2 100644
--- a/homeassistant/components/sisyphus/__init__.py
+++ b/homeassistant/components/sisyphus/__init__.py
@@ -5,7 +5,7 @@ import logging
 from sisyphus_control import Table
 import voluptuous as vol
 
-from homeassistant.const import CONF_HOST, CONF_NAME, EVENT_HOMEASSISTANT_STOP
+from homeassistant.const import CONF_HOST, CONF_NAME, EVENT_HOMEASSISTANT_STOP, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
@@ -51,10 +51,12 @@ async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
         tables[host] = TableHolder(hass, session, host, name)
 
         hass.async_create_task(
-            async_load_platform(hass, "light", DOMAIN, {CONF_HOST: host}, config)
+            async_load_platform(hass, Platform.LIGHT, DOMAIN, {CONF_HOST: host}, config)
         )
         hass.async_create_task(
-            async_load_platform(hass, "media_player", DOMAIN, {CONF_HOST: host}, config)
+            async_load_platform(
+                hass, Platform.MEDIA_PLAYER, DOMAIN, {CONF_HOST: host}, config
+            )
         )
 
     if isinstance(table_configs, dict):  # AUTODETECT_SCHEMA
diff --git a/homeassistant/components/sleepiq/__init__.py b/homeassistant/components/sleepiq/__init__.py
index 58f0ba89831..60614fcf97f 100644
--- a/homeassistant/components/sleepiq/__init__.py
+++ b/homeassistant/components/sleepiq/__init__.py
@@ -5,7 +5,7 @@ import logging
 from sleepyq import Sleepyq
 import voluptuous as vol
 
-from homeassistant.const import CONF_PASSWORD, CONF_USERNAME
+from homeassistant.const import CONF_PASSWORD, CONF_USERNAME, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
@@ -52,8 +52,8 @@ def setup(hass: HomeAssistant, config: ConfigType) -> bool:
         return False
 
     hass.data[DOMAIN] = data
-    discovery.load_platform(hass, "sensor", DOMAIN, {}, config)
-    discovery.load_platform(hass, "binary_sensor", DOMAIN, {}, config)
+    discovery.load_platform(hass, Platform.SENSOR, DOMAIN, {}, config)
+    discovery.load_platform(hass, Platform.BINARY_SENSOR, DOMAIN, {}, config)
 
     return True
 
diff --git a/homeassistant/components/smarty/__init__.py b/homeassistant/components/smarty/__init__.py
index 233dfa3bb27..e3cf1dcf287 100644
--- a/homeassistant/components/smarty/__init__.py
+++ b/homeassistant/components/smarty/__init__.py
@@ -6,7 +6,7 @@ import logging
 from pysmarty import Smarty
 import voluptuous as vol
 
-from homeassistant.const import CONF_HOST, CONF_NAME
+from homeassistant.const import CONF_HOST, CONF_NAME, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
@@ -54,9 +54,9 @@ def setup(hass: HomeAssistant, config: ConfigType) -> bool:
     smarty.update()
 
     # Load platforms
-    discovery.load_platform(hass, "fan", DOMAIN, {}, config)
-    discovery.load_platform(hass, "sensor", DOMAIN, {}, config)
-    discovery.load_platform(hass, "binary_sensor", DOMAIN, {}, config)
+    discovery.load_platform(hass, Platform.FAN, DOMAIN, {}, config)
+    discovery.load_platform(hass, Platform.SENSOR, DOMAIN, {}, config)
+    discovery.load_platform(hass, Platform.BINARY_SENSOR, DOMAIN, {}, config)
 
     def poll_device_update(event_time):
         """Update Smarty device."""
diff --git a/homeassistant/components/spc/__init__.py b/homeassistant/components/spc/__init__.py
index 1e6e643bf1c..f3c829f5d0c 100644
--- a/homeassistant/components/spc/__init__.py
+++ b/homeassistant/components/spc/__init__.py
@@ -6,6 +6,7 @@ from pyspcwebgw.area import Area
 from pyspcwebgw.zone import Zone
 import voluptuous as vol
 
+from homeassistant.const import Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import aiohttp_client, discovery
 import homeassistant.helpers.config_validation as cv
@@ -64,12 +65,14 @@ async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
 
     # add sensor devices for each zone (typically motion/fire/door sensors)
     hass.async_create_task(
-        discovery.async_load_platform(hass, "binary_sensor", DOMAIN, {}, config)
+        discovery.async_load_platform(hass, Platform.BINARY_SENSOR, DOMAIN, {}, config)
     )
 
     # create a separate alarm panel for each area
     hass.async_create_task(
-        discovery.async_load_platform(hass, "alarm_control_panel", DOMAIN, {}, config)
+        discovery.async_load_platform(
+            hass, Platform.ALARM_CONTROL_PANEL, DOMAIN, {}, config
+        )
     )
 
     # start listening for incoming events over websocket
diff --git a/homeassistant/components/stiebel_eltron/__init__.py b/homeassistant/components/stiebel_eltron/__init__.py
index dfec82975af..e7a5c8830db 100644
--- a/homeassistant/components/stiebel_eltron/__init__.py
+++ b/homeassistant/components/stiebel_eltron/__init__.py
@@ -6,7 +6,7 @@ from pystiebeleltron import pystiebeleltron
 import voluptuous as vol
 
 from homeassistant.components.modbus.const import CONF_HUB, DEFAULT_HUB, MODBUS_DOMAIN
-from homeassistant.const import CONF_NAME, DEVICE_DEFAULT_NAME
+from homeassistant.const import CONF_NAME, DEVICE_DEFAULT_NAME, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
@@ -45,7 +45,7 @@ def setup(hass: HomeAssistant, config: ConfigType) -> bool:
         "ste_data": StiebelEltronData(name, modbus_client),
     }
 
-    discovery.load_platform(hass, "climate", DOMAIN, {}, config)
+    discovery.load_platform(hass, Platform.CLIMATE, DOMAIN, {}, config)
     return True
 
 
diff --git a/homeassistant/components/tibber/__init__.py b/homeassistant/components/tibber/__init__.py
index 07752a264c3..a0fda8823c4 100644
--- a/homeassistant/components/tibber/__init__.py
+++ b/homeassistant/components/tibber/__init__.py
@@ -68,7 +68,11 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     # have to use discovery to load platform.
     hass.async_create_task(
         discovery.async_load_platform(
-            hass, "notify", DOMAIN, {CONF_NAME: DOMAIN}, hass.data[DATA_HASS_CONFIG]
+            hass,
+            Platform.NOTIFY,
+            DOMAIN,
+            {CONF_NAME: DOMAIN},
+            hass.data[DATA_HASS_CONFIG],
         )
     )
     return True
diff --git a/homeassistant/components/tplink_lte/__init__.py b/homeassistant/components/tplink_lte/__init__.py
index 32e0027a3b4..52ee5dfd980 100644
--- a/homeassistant/components/tplink_lte/__init__.py
+++ b/homeassistant/components/tplink_lte/__init__.py
@@ -13,6 +13,7 @@ from homeassistant.const import (
     CONF_PASSWORD,
     CONF_RECIPIENT,
     EVENT_HOMEASSISTANT_STOP,
+    Platform,
 )
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers import config_validation as cv, discovery
@@ -99,7 +100,7 @@ async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
         for notify_conf in conf.get(CONF_NOTIFY, []):
             hass.async_create_task(
                 discovery.async_load_platform(
-                    hass, "notify", DOMAIN, notify_conf, config
+                    hass, Platform.NOTIFY, DOMAIN, notify_conf, config
                 )
             )
 
diff --git a/homeassistant/components/updater/__init__.py b/homeassistant/components/updater/__init__.py
index b02049b9f5e..4c05931f8fa 100644
--- a/homeassistant/components/updater/__init__.py
+++ b/homeassistant/components/updater/__init__.py
@@ -7,7 +7,7 @@ import async_timeout
 from awesomeversion import AwesomeVersion
 import voluptuous as vol
 
-from homeassistant.const import __version__ as current_version
+from homeassistant.const import Platform, __version__ as current_version
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import discovery, update_coordinator
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
@@ -117,7 +117,7 @@ async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
     asyncio.create_task(coordinator.async_refresh())
 
     hass.async_create_task(
-        discovery.async_load_platform(hass, "binary_sensor", DOMAIN, {}, config)
+        discovery.async_load_platform(hass, Platform.BINARY_SENSOR, DOMAIN, {}, config)
     )
 
     return True
diff --git a/homeassistant/components/waterfurnace/__init__.py b/homeassistant/components/waterfurnace/__init__.py
index 3d2faec8f39..b74fea3c97d 100644
--- a/homeassistant/components/waterfurnace/__init__.py
+++ b/homeassistant/components/waterfurnace/__init__.py
@@ -7,7 +7,12 @@ import time
 import voluptuous as vol
 from waterfurnace.waterfurnace import WaterFurnace, WFCredentialError, WFException
 
-from homeassistant.const import CONF_PASSWORD, CONF_USERNAME, EVENT_HOMEASSISTANT_STOP
+from homeassistant.const import (
+    CONF_PASSWORD,
+    CONF_USERNAME,
+    EVENT_HOMEASSISTANT_STOP,
+    Platform,
+)
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers import config_validation as cv, discovery
 from homeassistant.helpers.typing import ConfigType
@@ -56,7 +61,7 @@ def setup(hass: HomeAssistant, base_config: ConfigType) -> bool:
     hass.data[DOMAIN] = WaterFurnaceData(hass, wfconn)
     hass.data[DOMAIN].start()
 
-    discovery.load_platform(hass, "sensor", DOMAIN, {}, config)
+    discovery.load_platform(hass, Platform.SENSOR, DOMAIN, {}, config)
     return True
 
 
diff --git a/homeassistant/components/webostv/__init__.py b/homeassistant/components/webostv/__init__.py
index 4582caa2507..e5f352b05d9 100644
--- a/homeassistant/components/webostv/__init__.py
+++ b/homeassistant/components/webostv/__init__.py
@@ -18,6 +18,7 @@ from homeassistant.const import (
     CONF_ICON,
     CONF_NAME,
     EVENT_HOMEASSISTANT_STOP,
+    Platform,
 )
 from homeassistant.core import HomeAssistant, ServiceCall
 import homeassistant.helpers.config_validation as cv
@@ -177,10 +178,14 @@ async def async_setup_tv_finalize(hass, config, conf, client):
 
     await async_connect(client)
     hass.async_create_task(
-        hass.helpers.discovery.async_load_platform("media_player", DOMAIN, conf, config)
+        hass.helpers.discovery.async_load_platform(
+            Platform.MEDIA_PLAYER, DOMAIN, conf, config
+        )
     )
     hass.async_create_task(
-        hass.helpers.discovery.async_load_platform("notify", DOMAIN, conf, config)
+        hass.helpers.discovery.async_load_platform(
+            Platform.NOTIFY, DOMAIN, conf, config
+        )
     )
 
 
diff --git a/homeassistant/components/zodiac/__init__.py b/homeassistant/components/zodiac/__init__.py
index c19b7a45ac2..35d4d2eefbf 100644
--- a/homeassistant/components/zodiac/__init__.py
+++ b/homeassistant/components/zodiac/__init__.py
@@ -1,6 +1,7 @@
 """The zodiac component."""
 import voluptuous as vol
 
+from homeassistant.const import Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.discovery import async_load_platform
 from homeassistant.helpers.typing import ConfigType
@@ -15,6 +16,8 @@ CONFIG_SCHEMA = vol.Schema(
 
 async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the zodiac component."""
-    hass.async_create_task(async_load_platform(hass, "sensor", DOMAIN, {}, config))
+    hass.async_create_task(
+        async_load_platform(hass, Platform.SENSOR, DOMAIN, {}, config)
+    )
 
     return True
diff --git a/homeassistant/components/zoneminder/__init__.py b/homeassistant/components/zoneminder/__init__.py
index 54a44785b35..5e9c881af85 100644
--- a/homeassistant/components/zoneminder/__init__.py
+++ b/homeassistant/components/zoneminder/__init__.py
@@ -13,6 +13,7 @@ from homeassistant.const import (
     CONF_SSL,
     CONF_USERNAME,
     CONF_VERIFY_SSL,
+    Platform,
 )
 from homeassistant.core import HomeAssistant, ServiceCall
 import homeassistant.helpers.config_validation as cv
@@ -94,7 +95,7 @@ def setup(hass: HomeAssistant, config: ConfigType) -> bool:
     )
 
     hass.async_create_task(
-        async_load_platform(hass, "binary_sensor", DOMAIN, {}, config)
+        async_load_platform(hass, Platform.BINARY_SENSOR, DOMAIN, {}, config)
     )
 
     return success