diff options
| author | Stephen Boyd | 2016-01-20 23:58:35 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2016-01-21 02:09:18 +0100 |
| commit | a9aec5881b9d4aca184b29d33484a6a58d23f7f2 (patch) | |
| tree | 8da654f4e0ce565ebe9c58ee28a0427948979280 /include/linux/io.h | |
| parent | arch/frv/include/asm/io.h: accept const void pointers for read{b,w,l}() (diff) | |
| download | kernel-qcow2-linux-a9aec5881b9d4aca184b29d33484a6a58d23f7f2.tar.gz kernel-qcow2-linux-a9aec5881b9d4aca184b29d33484a6a58d23f7f2.tar.xz kernel-qcow2-linux-a9aec5881b9d4aca184b29d33484a6a58d23f7f2.zip | |
lib/iomap_copy.c: add __ioread32_copy()
Some drivers need to read data out of iomem areas 32-bits at a time.
Add an API to do this.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Cc: <zajec5@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/io.h')
| -rw-r--r-- | include/linux/io.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/io.h b/include/linux/io.h index fffd88d7f426..32403b5716e5 100644 --- a/include/linux/io.h +++ b/include/linux/io.h @@ -29,6 +29,7 @@ struct device; struct resource; __visible void __iowrite32_copy(void __iomem *to, const void *from, size_t count); +void __ioread32_copy(void *to, const void __iomem *from, size_t count); void __iowrite64_copy(void __iomem *to, const void *from, size_t count); #ifdef CONFIG_MMU |