static int i2c_lpc2k_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[],
int msg_num)
{
int ret, i;
unsigned long stat;
struct lpc2k_i2c *i2c = adap->algo_data;
/* Check for bus idle condition */
stat = i2c_readl(i2c->reg_base + LPC24XX_I2STAT);
if (stat != m_i2c_idle) {
/* Something is holding the bus, try to clear it */
ret = i2c_lpc2k_clear_arb(i2c);
if (ret) {
dev_err(&i2c->adap.dev, "Bus is not idle\n");
return ret;
}
}
dev_dbg(&i2c->adap.dev, "Processing total messages = %d\n", msg_num);
/* Process a single message at a time */
for (i = 0; i < msg_num; i++) {
/* Save message pointer and current message data index */
i2c->msg = &msgs[i];
i2c->msg_idx = 0;
i2c->msg_status = -EBUSY;
i2c->is_last = (i == (msg_num - 1));
ret = lpc2k_process_msg(i2c, i);
if (ret)
return ret;
}
return msg_num;
}
static int i2c_lpc2k_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
int msg_num)
{
struct lpc2k_i2c *i2c = i2c_get_adapdata(adap);
int ret, i;
u32 stat;
/* Check for bus idle condition */
stat = readl(i2c->base + LPC24XX_I2STAT);
if (stat != M_I2C_IDLE) {
/* Something is holding the bus, try to clear it */
return i2c_lpc2k_clear_arb(i2c);
}
/* Process a single message at a time */
for (i = 0; i < msg_num; i++) {
/* Save message pointer and current message data index */
i2c->msg = &msgs[i];
i2c->msg_idx = 0;
i2c->msg_status = -EBUSY;
i2c->is_last = (i == (msg_num - 1));
ret = lpc2k_process_msg(i2c, i);
if (ret)
return ret;
}
return msg_num;
}