Patch fix following sparse warning: drivers/mtd/nand/nand_base.c:123:16: warning: incorrect type in argument 1 (different address spaces) expected void const volatile [noderef] <asn:2>*<noident> got void *IO_ADDR_R Signed-off-by: Marek Belisko <marek.belisko@open-nandra.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>