diff --git a/homeassistant/components/deconz/binary_sensor.py b/homeassistant/components/deconz/binary_sensor.py
index f7a9c1a5217fc..5dc11d9b580d5 100644
--- a/homeassistant/components/deconz/binary_sensor.py
+++ b/homeassistant/components/deconz/binary_sensor.py
@@ -33,10 +33,6 @@
 }
 
 
-async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
-    """Old way of setting up deCONZ platforms."""
-
-
 async def async_setup_entry(hass, config_entry, async_add_entities):
     """Set up the deCONZ binary sensor."""
     gateway = get_gateway_from_config_entry(hass, config_entry)
diff --git a/homeassistant/components/deconz/climate.py b/homeassistant/components/deconz/climate.py
index 10ea7173f8a20..7cfb716b586c0 100644
--- a/homeassistant/components/deconz/climate.py
+++ b/homeassistant/components/deconz/climate.py
@@ -19,10 +19,6 @@
 SUPPORT_HVAC = [HVAC_MODE_AUTO, HVAC_MODE_HEAT, HVAC_MODE_OFF]
 
 
-async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
-    """Old way of setting up deCONZ platforms."""
-
-
 async def async_setup_entry(hass, config_entry, async_add_entities):
     """Set up the deCONZ climate devices.
 
diff --git a/homeassistant/components/deconz/const.py b/homeassistant/components/deconz/const.py
index f60c4c3564626..d965b6485f8a8 100644
--- a/homeassistant/components/deconz/const.py
+++ b/homeassistant/components/deconz/const.py
@@ -1,6 +1,15 @@
 """Constants for the deCONZ component."""
 import logging
 
+from homeassistant.components.binary_sensor import DOMAIN as BINARY_SENSOR_DOMAIN
+from homeassistant.components.climate import DOMAIN as CLIMATE_DOMAIN
+from homeassistant.components.cover import DOMAIN as COVER_DOMAIN
+from homeassistant.components.light import DOMAIN as LIGHT_DOMAIN
+from homeassistant.components.lock import DOMAIN as LOCK_DOMAIN
+from homeassistant.components.scene import DOMAIN as SCENE_DOMAIN
+from homeassistant.components.sensor import DOMAIN as SENSOR_DOMAIN
+from homeassistant.components.switch import DOMAIN as SWITCH_DOMAIN
+
 LOGGER = logging.getLogger(__package__)
 
 DOMAIN = "deconz"
@@ -19,14 +28,14 @@
 CONF_MASTER_GATEWAY = "master"
 
 SUPPORTED_PLATFORMS = [
-    "binary_sensor",
-    "climate",
-    "cover",
-    "light",
-    "lock",
-    "scene",
-    "sensor",
-    "switch",
+    BINARY_SENSOR_DOMAIN,
+    CLIMATE_DOMAIN,
+    COVER_DOMAIN,
+    LIGHT_DOMAIN,
+    LOCK_DOMAIN,
+    SCENE_DOMAIN,
+    SENSOR_DOMAIN,
+    SWITCH_DOMAIN,
 ]
 
 NEW_GROUP = "groups"
diff --git a/homeassistant/components/deconz/cover.py b/homeassistant/components/deconz/cover.py
index 7bcd821a3443d..d1cd48c47cc87 100644
--- a/homeassistant/components/deconz/cover.py
+++ b/homeassistant/components/deconz/cover.py
@@ -17,10 +17,6 @@
 from .gateway import get_gateway_from_config_entry
 
 
-async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
-    """Old way of setting up deCONZ platforms."""
-
-
 async def async_setup_entry(hass, config_entry, async_add_entities):
     """Set up covers for deCONZ component.
 
diff --git a/homeassistant/components/deconz/light.py b/homeassistant/components/deconz/light.py
index 544699970f284..cf7007109b373 100644
--- a/homeassistant/components/deconz/light.py
+++ b/homeassistant/components/deconz/light.py
@@ -35,10 +35,6 @@
 from .gateway import get_gateway_from_config_entry
 
 
-async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
-    """Old way of setting up deCONZ platforms."""
-
-
 async def async_setup_entry(hass, config_entry, async_add_entities):
     """Set up the deCONZ lights and groups from a config entry."""
     gateway = get_gateway_from_config_entry(hass, config_entry)
diff --git a/homeassistant/components/deconz/scene.py b/homeassistant/components/deconz/scene.py
index fdeb1d43accad..2ce3da6c234d8 100644
--- a/homeassistant/components/deconz/scene.py
+++ b/homeassistant/components/deconz/scene.py
@@ -9,10 +9,6 @@
 from .gateway import get_gateway_from_config_entry
 
 
-async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
-    """Old way of setting up deCONZ platforms."""
-
-
 async def async_setup_entry(hass, config_entry, async_add_entities):
     """Set up scenes for deCONZ component."""
     gateway = get_gateway_from_config_entry(hass, config_entry)
diff --git a/homeassistant/components/deconz/sensor.py b/homeassistant/components/deconz/sensor.py
index 08e81d2dd3b20..32dc0ee7ea309 100644
--- a/homeassistant/components/deconz/sensor.py
+++ b/homeassistant/components/deconz/sensor.py
@@ -68,10 +68,6 @@
 }
 
 
-async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
-    """Old way of setting up deCONZ platforms."""
-
-
 async def async_setup_entry(hass, config_entry, async_add_entities):
     """Set up the deCONZ sensors."""
     gateway = get_gateway_from_config_entry(hass, config_entry)
diff --git a/homeassistant/components/deconz/switch.py b/homeassistant/components/deconz/switch.py
index dacae4d4a5699..af543348a4d57 100644
--- a/homeassistant/components/deconz/switch.py
+++ b/homeassistant/components/deconz/switch.py
@@ -8,10 +8,6 @@
 from .gateway import get_gateway_from_config_entry
 
 
-async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
-    """Old way of setting up deCONZ platforms."""
-
-
 async def async_setup_entry(hass, config_entry, async_add_entities):
     """Set up switches for deCONZ component.