This patchset tries to remove ioremap_uc() in the current architectures
except of x86 and ia64. They will use the default ioremap_uc definition
in <asm-generic/io.h> which returns NULL. If any arch sees a breakage
caused by the default ioremap_uc(), it can provide a sepcific one for its
own usage. This is done in patch 2.
To get rid of all of them other than x86 and ia64, add asm-generic/io.h
to asm/io.h of mips ARCH. With this adding, we can get rid of the
ioremap_uc() in mips too. Adding asm-generic/io.h is done in patch 1.
v2->v3:
- In patch 1, move those macro definition of functio near its function
declaration according to Arnd's suggestion. And remove the unneeded
change in asm/mmiowb.h introduced in old version.
- In patch 2, clean up and rewrite the messy document related to
ioremap_uc() in Documentation/driver-api/device-io.rst.
v1->v2:
- Update log of patch 2, and document related to ioremap_uc()
according to Geert's comment.
- Add Geert's Acked-by.
Baoquan He (2):
mips: add <asm-generic/io.h> including
arch/*/io.h: remove ioremap_uc in some architectures
Documentation/driver-api/device-io.rst | 14 +++--
arch/alpha/include/asm/io.h | 1 -
arch/hexagon/include/asm/io.h | 3 -
arch/m68k/include/asm/kmap.h | 1 -
arch/mips/include/asm/io.h | 79 +++++++++++++++++++++++---
arch/parisc/include/asm/io.h | 2 -
arch/powerpc/include/asm/io.h | 1 -
arch/sh/include/asm/io.h | 2 -
arch/sparc/include/asm/io_64.h | 1 -
9 files changed, 79 insertions(+), 25 deletions(-)
--
2.34.1
