diff options
| author | Antonino A. Daplas <adaplas@gmail.com> | 2007-05-08 00:38:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-08 11:15:29 -0700 |
| commit | f7829158bce2c8180bf7a1cb922cad812d3a2788 (patch) | |
| tree | 318070b6d6cd2d852c8142c1ec959f8dcb74c8db /drivers | |
| parent | 7dfe50b3aac2b3500139ab10a6e228d34fed9a49 (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')
| -rw-r--r-- | drivers/video/savage/savagefb-i2c.c | 22 |
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, |