mtd: rawnand: ndfc: use devm_platform_ioremap_resource()

Replace the open-coded of_iomap()/iounmap() with the managed
devm_platform_ioremap_resource() helper. This fixes a mapping leak on
driver remove (the old code never called iounmap()) and simplifies the
error path by dropping the manual cleanup in ndfc_probe().

There is no overlapping memory-region concern introduced by this
change: each supported board DT describes a single ndfc node with a
unique 0x2000 register region, and the EBC parent uses dcr-reg rather
than a MEM reg resource, so the newly added request_mem_region() cannot
conflict with an existing reservation. Distinct chip selects map to
distinct 64-bit physical addresses, so CS instances do not overlap.

Fixes: a808ad3b0d28 ("[MTD] [NAND] ndfc driver")
Cc: stable@vger.kernel.org
Assisted-by: opencode:hy3-free
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

0 files changed, 0 insertions, 0 deletions