Those api take use of read*/write* to align the current dmb usage. Also this could short the code length in one line.
Signed-off-by: Lei Wen leiwen@marvell.com --- Changelog: V2: V3: V4: Move original driver specific bit set to the general place
V5: fix code style issue
V5.1: Add parentheses for the around incoming parameters to prevent parsing the complex expression wrong.
arch/arm/include/asm/io.h | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h index 1fbc531..71e85e8 100644 --- a/arch/arm/include/asm/io.h +++ b/arch/arm/include/asm/io.h @@ -141,6 +141,14 @@ extern inline void __raw_readsl(unsigned int addr, void *data, int longlen) #define readw(c) ({ u16 __v = __arch_getw(c); __iormb(); __v; }) #define readl(c) ({ u32 __v = __arch_getl(c); __iormb(); __v; })
+#define orb(v, c) writeb(readb(c) | (v), c) +#define orw(v, c) writew(readw(c) | (v), c) +#define orl(v, c) writel(readl(c) | (v), c) + +#define andb(v, c) writeb(readb(c) & (v), c) +#define andw(v, c) writew(readw(c) & (v), c) +#define andl(v, c) writel(readl(c) & (v), c) + /* * The compiler seems to be incapable of optimising constants * properly. Spell it out to the compiler in some cases.