u8                        *mmio = par->mmio_start_virtual;
u8                        __iomem *mmio = par->mmio_start_virtual;
static int i810i2c_getscl(void *data){        struct i810fb_i2c_chan    *chan = (struct i810fb_i2c_chan *)data;        struct i810fb_par         *par = chan->par;	u8                        *mmio = par->mmio_start_virtual;	i810_writel(mmio, GPIOB, SCL_DIR_MASK);	i810_writel(mmio, GPIOB, 0);	return (0 != (i810_readl(mmio, GPIOB) & SCL_VAL_IN));}