static void
dpll_xa_ref_dpll_del(struct xarray *xa_dplls, struct dpll_device *dpll,
		     const struct dpll_pin_ops *ops, void *priv)
static void
dpll_xa_ref_dpll_del(struct xarray *xa_dplls, struct dpll_device *dpll,
		     const struct dpll_pin_ops *ops, void *priv, void *cookie)