static int exynos_dp_sw_link_training(struct exynos_dp_device *dp)
{
int retval = 0;
int training_finished;
/* Turn off unnecessary lane */
if (dp->link_train.lane_count == 1)
exynos_dp_set_analog_power_down(dp, CH1_BLOCK, 1);
training_finished = 0;
dp->link_train.lt_state = START;
/* Process here */
while (!training_finished) {
switch (dp->link_train.lt_state) {
case START:
exynos_dp_link_start(dp);
break;
case CLOCK_RECOVERY:
exynos_dp_process_clock_recovery(dp);
break;
case EQUALIZER_TRAINING:
exynos_dp_process_equalizer_training(dp);
break;
case FINISHED:
training_finished = 1;
break;
case FAILED:
return -EREMOTEIO;
}
}
return retval;
}
static int exynos_dp_sw_link_training(struct exynos_dp_device *dp)
{
int retval = 0;
int training_finished = 0;
dp->link_train.lt_state = START;
/* Process here */
while (!training_finished) {
switch (dp->link_train.lt_state) {
case START:
exynos_dp_link_start(dp);
break;
case CLOCK_RECOVERY:
retval = exynos_dp_process_clock_recovery(dp);
if (retval)
dev_err(dp->dev, "LT CR failed!\n");
break;
case EQUALIZER_TRAINING:
retval = exynos_dp_process_equalizer_training(dp);
if (retval)
dev_err(dp->dev, "LT EQ failed!\n");
break;
case FINISHED:
training_finished = 1;
break;
case FAILED:
return -EREMOTEIO;
}
}
return retval;
}