ffb_dac
of_iounmap(&op->resource[1], par->dac, sizeof(struct ffb_dac));
of_iounmap(&op->resource[1], par->dac, sizeof(struct ffb_dac));
struct ffb_dac __iomem *dac;
struct ffb_dac __iomem *dac = par->dac;
struct ffb_dac __iomem *dac = par->dac;
struct ffb_dac __iomem *dac;
sizeof(struct ffb_dac), "ffb dac");