hass_flickerstrip/custom_components/flickerstrip/__init__.py

from homeassistant.config_entries import ConfigEntry
from homeassistant.const import CONF_HOST, CONF_PORT
from homeassistant.core import HomeAssistant

from .common import Flickerstrip
from .const import (
    DOMAIN,
)


async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
    """Setup flickerstrip from config entry."""

    hass.data.setdefault(DOMAIN, {})
    hass.data[DOMAIN][entry.entry_id] = Flickerstrip(
        hass=hass,
        host=entry.data[CONF_HOST],
        port=entry.data[CONF_PORT],
    )

    entry.async_on_unload(entry.add_update_listener(update_listener))

    return True


async def update_listener(hass: HomeAssistant, entry: ConfigEntry) -> None:
    """Update when config_entry options update."""
    if entry.options:
        await hass.config_entries.async_reload(entry.entry_id)