static int i2c_pxa_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
{
struct pxa_i2c *i2c = adap->algo_data;
int ret, i;
/* If the I2C controller is disabled we need to reset it (probably due
to a suspend/resume destroying state). We do this here as we can then
avoid worrying about resuming the controller before its users. */
if (!(readl(_ICR(i2c)) & ICR_IUE))
i2c_pxa_reset(i2c);
for (i = adap->retries; i >= 0; i--) {
ret = i2c_pxa_do_xfer(i2c, msgs, num);
if (ret != I2C_RETRY)
goto out;
if (i2c_debug)
dev_dbg(&adap->dev, "Retrying transmission\n");
udelay(100);
}
i2c_pxa_scream_blue_murder(i2c, "exhausted retries");
ret = -EREMOTEIO;
out:
i2c_pxa_set_slave(i2c, ret);
return ret;
}
static int i2c_pxa_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg msgs[], int num)
{
int retval = i2c_pxa_valid_messages( msgs, num);
if( retval > 0)
{
int i;
for (i=i2c_adap->retries; i>=0; i--){
int retval = i2c_pxa_do_xfer(i2c_adap,msgs,num);
if (retval!=I2C_RETRY){
return retval;
}
if( i2c_debug)printk(KERN_INFO"Retrying transmission \n");
udelay(100);
}
if( i2c_debug)printk(KERN_INFO"Retried %i times\n",i2c_adap->retries);
return -EREMOTEIO;
}
return retval;
}