diff --git a/src/data/entity_sources.ts b/src/data/entity_sources.ts
index 67455c1d22c0..851a70bfa69b 100644
--- a/src/data/entity_sources.ts
+++ b/src/data/entity_sources.ts
@@ -1,46 +1,25 @@
 import { timeCachePromiseFunc } from "../common/util/time-cache-function-promise";
 import { HomeAssistant } from "../types";
 
-interface EntitySourceConfigEntry {
-  source: "config_entry";
+interface EntitySource {
   domain: string;
-  custom_component: boolean;
-  config_entry: string;
 }
 
-interface EntitySourcePlatformConfig {
-  source: "platform_config";
-  domain: string;
-  custom_component: boolean;
-}
+export type EntitySources = Record<string, EntitySource>;
 
-export type EntitySources = Record<
-  string,
-  EntitySourceConfigEntry | EntitySourcePlatformConfig
->;
-
-const fetchEntitySources = (
-  hass: HomeAssistant,
-  entity_id?: string
-): Promise<EntitySources> =>
-  hass.callWS({
-    type: "entity/source",
-    entity_id,
-  });
+const fetchEntitySources = (hass: HomeAssistant): Promise<EntitySources> =>
+  hass.callWS({ type: "entity/source" });
 
 export const fetchEntitySourcesWithCache = (
-  hass: HomeAssistant,
-  entity_id?: string
+  hass: HomeAssistant
 ): Promise<EntitySources> =>
-  entity_id
-    ? fetchEntitySources(hass, entity_id)
-    : timeCachePromiseFunc(
-        "_entitySources",
-        // cache for 30 seconds
-        30000,
-        fetchEntitySources,
-        // We base the cache on number of states. If number of states
-        // changes we force a refresh
-        (hass2) => Object.keys(hass2.states).length,
-        hass
-      );
+  timeCachePromiseFunc(
+    "_entitySources",
+    // cache for 30 seconds
+    30000,
+    fetchEntitySources,
+    // We base the cache on number of states. If number of states
+    // changes we force a refresh
+    (hass2) => Object.keys(hass2.states).length,
+    hass
+  );