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authorAntonino A. Daplas <adaplas@gmail.com>2007-05-08 00:38:34 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-08 11:15:29 -0700
commitf7829158bce2c8180bf7a1cb922cad812d3a2788 (patch)
tree318070b6d6cd2d852c8142c1ec959f8dcb74c8db /drivers/video
parent7dfe50b3aac2b3500139ab10a6e228d34fed9a49 (diff)
savagefb: rework i2c bit access
Use already defined VGAwCR/VGArCR functions to access the i2c bus. Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/savage/savagefb-i2c.c22
1 files changed, 8 insertions, 14 deletions
diff --git a/drivers/video/savage/savagefb-i2c.c b/drivers/video/savage/savagefb-i2c.c
index 8db066ccca6..35c1ce62b21 100644
--- a/drivers/video/savage/savagefb-i2c.c
+++ b/drivers/video/savage/savagefb-i2c.c
@@ -41,10 +41,6 @@
#define SAVAGE4_I2C_SCL_IN 0x00000008
#define SAVAGE4_I2C_SDA_IN 0x00000010
-#define SET_CR_IX(base, val) writeb((val), base + 0x8000 + VGA_CR_IX)
-#define SET_CR_DATA(base, val) writeb((val), base + 0x8000 + VGA_CR_DATA)
-#define GET_CR_DATA(base) readb(base + 0x8000 + VGA_CR_DATA)
-
static void savage4_gpio_setscl(void *data, int val)
{
struct savagefb_i2c_chan *chan = data;
@@ -92,15 +88,15 @@ static void prosavage_gpio_setscl(void* data, int val)
struct savagefb_i2c_chan *chan = data;
u32 r;
- SET_CR_IX(chan->ioaddr, chan->reg);
- r = GET_CR_DATA(chan->ioaddr);
+ r = VGArCR(chan->reg, chan->par);
r |= PROSAVAGE_I2C_ENAB;
if (val) {
r |= PROSAVAGE_I2C_SCL_OUT;
} else {
r &= ~PROSAVAGE_I2C_SCL_OUT;
}
- SET_CR_DATA(chan->ioaddr, r);
+
+ VGAwCR(chan->reg, r, chan->par);
}
static void prosavage_gpio_setsda(void* data, int val)
@@ -108,31 +104,29 @@ static void prosavage_gpio_setsda(void* data, int val)
struct savagefb_i2c_chan *chan = data;
unsigned int r;
- SET_CR_IX(chan->ioaddr, chan->reg);
- r = GET_CR_DATA(chan->ioaddr);
+ r = VGArCR(chan->reg, chan->par);
r |= PROSAVAGE_I2C_ENAB;
if (val) {
r |= PROSAVAGE_I2C_SDA_OUT;
} else {
r &= ~PROSAVAGE_I2C_SDA_OUT;
}
- SET_CR_DATA(chan->ioaddr, r);
+
+ VGAwCR(chan->reg, r, chan->par);
}
static int prosavage_gpio_getscl(void* data)
{
struct savagefb_i2c_chan *chan = data;
- SET_CR_IX(chan->ioaddr, chan->reg);
- return (0 != (GET_CR_DATA(chan->ioaddr) & PROSAVAGE_I2C_SCL_IN));
+ return (VGArCR(chan->reg, chan->par) & PROSAVAGE_I2C_SCL_IN) ? 1 : 0;
}
static int prosavage_gpio_getsda(void* data)
{
struct savagefb_i2c_chan *chan = data;
- SET_CR_IX(chan->ioaddr, chan->reg);
- return (0 != (GET_CR_DATA(chan->ioaddr) & PROSAVAGE_I2C_SDA_IN));
+ return (VGArCR(chan->reg, chan->par) & PROSAVAGE_I2C_SDA_IN) ? 1 : 0;
}
static int savage_setup_i2c_bus(struct savagefb_i2c_chan *chan,