Hi Frédéric,

> @@ -1968,6 +2024,13 @@ void ofono_netreg_register(struct ofono_netreg *netreg)
>  	netreg->hfp_watch = __ofono_modem_add_atom_watch(modem,
>  					OFONO_ATOM_TYPE_EMULATOR_HFP,
>  					emulator_hfp_watch, netreg, NULL);
> +
> +	hfp_atom = __ofono_modem_find_atom(modem, OFONO_ATOM_TYPE_EMULATOR_HFP);
> +
> +	if (hfp_atom && __ofono_atom_get_registered(hfp_atom))
> +		emulator_hfp_watch(hfp_atom,
> +					OFONO_ATOM_WATCH_CONDITION_REGISTERED,
> +					netreg);

There might be multiple HFP_EMULATOR atoms, so you should use
__ofono_modem_foreach_atom() here

Rest of the patch looks fine to me.

Regards,
-Denis