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authorTetsuyuki Kobayashi <koba@kmckk.co.jp>2012-09-13 19:08:05 +0000
committerHeiko Schocher <hs@denx.de>2012-10-16 05:47:21 +0200
commitf539094f4886779432053f5ddf7bfb2f45d182e1 (patch)
treef750152464b38ead4c79c0150f921713a4f8237d
parent650f95b0c7ee4a43a3dc3e64b1074f02a6b4100e (diff)
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i2c: sh_i2c: use setbits/clrbits macro
Use setbits/clrbits macro when read-modify-write register. Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp> Acked-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
-rw-r--r--drivers/i2c/sh_i2c.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/i2c/sh_i2c.c b/drivers/i2c/sh_i2c.c
index afcb503..44ba90e 100644
--- a/drivers/i2c/sh_i2c.c
+++ b/drivers/i2c/sh_i2c.c
@@ -98,8 +98,8 @@ static int i2c_set_addr(struct sh_i2c *base, u8 id, u8 reg, int stop)
{
u8 icic = SH_IC_TACK;
- writeb(readb(&base->iccr) & ~SH_I2C_ICCR_ICE, &base->iccr);
- writeb(readb(&base->iccr) | SH_I2C_ICCR_ICE, &base->iccr);
+ clrbits_8(&base->iccr, SH_I2C_ICCR_ICE);
+ setbits_8(&base->iccr, SH_I2C_ICCR_ICE);
writeb(iccl & 0xff, &base->iccl);
writeb(icch & 0xff, &base->icch);
@@ -114,7 +114,7 @@ static int i2c_set_addr(struct sh_i2c *base, u8 id, u8 reg, int stop)
writeb((SH_I2C_ICCR_ICE|SH_I2C_ICCR_RTS|SH_I2C_ICCR_BUSY), &base->iccr);
irq_dte(base);
- writeb(readb(&base->icsr) & ~SH_IC_TACK, &base->icsr);
+ clrbits_8(&base->icsr, SH_IC_TACK);
writeb(id << 1, &base->icdr);
if (irq_dte_with_tack(base) != 0)
return -1;
@@ -131,7 +131,7 @@ static int i2c_set_addr(struct sh_i2c *base, u8 id, u8 reg, int stop)
static void i2c_finish(struct sh_i2c *base)
{
writeb(0, &base->icsr);
- writeb(readb(&base->iccr) & ~SH_I2C_ICCR_ICE, &base->iccr);
+ clrbits_8(&base->iccr, SH_I2C_ICCR_ICE);
}
static int i2c_raw_write(struct sh_i2c *base, u8 id, u8 reg, u8 val)