Architectures like xtensa, arc, can be converted to GENERIC_IOREMAP,
to take standard ioremap_prot() and ioremap_xxx() way. But they have
ARCH specific handling for ioremap() method, than standard ioremap()
method.
In oder to convert them to take GENERIC_IOREMAP method, allow these
architecutres to have their own ioremap definition.
This is a preparation patch, no functionality change.
Signed-off-by: Baoquan He <bhe@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: linux-arch@xxxxxxxxxxxxxxx
Cc: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
---
include/asm-generic/io.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index 2ae16906f3be..8878914579d8 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -1078,11 +1078,14 @@ void __iomem *ioremap_prot(phys_addr_t phys_addr, size_t size,
unsigned long prot);
void iounmap(volatile void __iomem *addr);
+#ifndef ioremap
+#define ioremap ioremap
static inline void __iomem *ioremap(phys_addr_t addr, size_t size)
{
/* _PAGE_IOREMAP needs to be supplied by the architecture */
return ioremap_prot(addr, size, _PAGE_IOREMAP);
}
+#endif
#endif /* !CONFIG_MMU || CONFIG_GENERIC_IOREMAP */
#ifndef ioremap_wc
--
2.34.1
