static int dpll_xa_ref_pin_del(struct xarray *xa_pins, struct dpll_pin *pin,
			       const struct dpll_pin_ops *ops, void *priv)
static int dpll_xa_ref_pin_del(struct xarray *xa_pins, struct dpll_pin *pin,
			       const struct dpll_pin_ops *ops, void *priv,
			       void *cookie)