mtd: mpc5121_nfc: use platform for irq and ioremap

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Replace the open-coded of_address_to_resource() plus devm_request_mem_region()
and devm_ioremap() sequence with a single devm_platform_ioremap_resource()
call, which folds the resource lookup, region reservation and mapping into
one step and returns an ERR_PTR on failure, checked with IS_ERR() and
propagated via PTR_ERR().

Switch IRQ acquisition from irq_of_parse_and_map() to platform_get_irq(),
which only retrieves the interrupt the OF/platform core has already set up
rather than transferring mapping ownership to the driver. Drop the now
unneeded of_irq.h include.

This is behaviorally equivalent: the driver already reserved the region
with devm_request_mem_region(), so the non-overlapping reg requirement of
devm_platform_ioremap_resource() was already satisfied.

Drop the now-unused regs_paddr / regs_size locals, which previously only
fed the open-coded request/ioremap calls. Keep the linux/of_address.h
include, as of_iomap() is still used elsewhere in the driver.

Built for PowerPC (mpc512x_defconfig + CONFIG_MTD_NAND_MPC5121_NFC) with
LLVM=1; drivers/mtd/nand/raw/mpc5121_nfc.o compiles cleanly.

Assisted-by: opencode:hy3-free
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

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This commit is contained in:

Rosen Penev 2026-07-13 16:17:22 -07:00 • committed by Miquel Raynal

parent 956e7da12c

commit 355efa360b

1 changed files with 12 additions and 27 deletions

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drivers/mtd/nand/raw/mpc5121_nfc.c

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