I hate to answer my own question as I thought it was more difficult
than this:

select R.ROUTINESCHEMA, R.ROUTINENAME AS SPECIFICNAME, X.ROUTINENAME,
rtrim(
   p.bschema) || '.' || P.bname as DEPON
 from syscat.PACKAGEDEP P, syscat.ROUTINEDEP R, syscat.routines X
 where P.bschema = 'yourschema'
   and p.btype = 'F'
   and P.PKGNAME = R.BNAME
   and P.PKGSCHEMA = R.ROUTINESCHEMA
   and R.BTYPE = 'K'
   and R.ROUTINENAME = X.specificname
   and R.ROUTINESCHEMA = X.ROUTINESCHEMA
   and X.valid = 'Y'
   and X.routinetype = 'P'
   and p.bschema||P.bname in (
     Select Z.ROUTINESCHEMA ||Z.specificname
       from syscat.routines Z
       where Z.routinetype = 'P'
       group by Z.ROUTINESCHEMA, Z.specificname )
 order by R.ROUTINESCHEMA, R.ROUTINENAME;