static int oaktrail_hdmi_i2c_access(struct i2c_adapter *adap,
struct i2c_msg *pmsg,
int num)
{
struct oaktrail_hdmi_dev *hdmi_dev = i2c_get_adapdata(adap);
struct hdmi_i2c_dev *i2c_dev = hdmi_dev->i2c_dev;
int i;
mutex_lock(&i2c_dev->i2c_lock);
/* Enable i2c unit */
HDMI_WRITE(HDMI_ICRH, 0x00008760);
/* Enable irq */
hdmi_i2c_irq_enable(hdmi_dev);
for (i = 0; i < num; i++) {
if (pmsg->len && pmsg->buf) {
if (pmsg->flags & I2C_M_RD)
xfer_read(adap, pmsg);
else
xfer_write(adap, pmsg);
}
pmsg++; /* next message */
}
/* Disable irq */
hdmi_i2c_irq_disable(hdmi_dev);
mutex_unlock(&i2c_dev->i2c_lock);
return i;
}
static int i2c_jz_xfer(struct i2c_adapter *adap, struct i2c_msg *msg, int count)
{
int i, ret = 0;
struct i2c_jz *i2c = adap->algo_data;
#ifdef CONFIG_I2C_DEBUG_INFO
if (i2c->debug > DEBUG_WARN) {
printk("\n\n\n");
dev_info(&(i2c->adap.dev),
"%s, Begin master xfer, want to transfer msg count is %d\n",
__func__, count);
}
#endif
clk_enable(i2c->clk);
i2c_writel(i2c, I2C_TAR, msg->addr);
for (i = 0; i < count; i++, msg++) {
enum msg_end_type end_type = MSG_END_STOP;
if (i < (count - 1)) {
if (msg[i + 1].flags & I2C_M_NOSTART) {
end_type = MSG_END_CONTINUE; /* have no STOP and START */
} else {
end_type = MSG_END_REPEAT_START; /* have no STOP but have RESTART */
}
}
INIT_COMPLETION(i2c->complete);
#ifdef CONFIG_I2C_DEBUG_INFO
if (i2c->debug > DEBUG_WARN)
dev_info(&(i2c->adap.dev),
"%s, Now transfer msg: %d\n", __func__, i);
#endif
if (msg->flags & I2C_M_RD) {
ret = xfer_read(i2c, msg->buf, msg->len, end_type);
} else {
ret = xfer_write(i2c, msg->buf, msg->len, end_type);
}
if (ret < 0) {
clk_disable(i2c->clk);
goto ERR;
}
}
if (i2c_disable_clk(i2c)) {
ret = -ETIMEDOUT;
goto ERR;
}
#ifdef CONFIG_I2C_DEBUG_INFO
if (i2c->debug > DEBUG_WARN)
dev_info(&(i2c->adap.dev),
"%s, Transfer msg over\n\n\n", __func__);
#endif
ERR:
return ret ? : i;
}
