static int mdp3_wait4vsync(struct mdp3_dma *dma, bool killable,
unsigned long timeout)
{
int rc;
int timeouts = 0;
static int timeout_occurred;
int prev_vsync_cnt = dma->vsync_cnt;
unsigned long tout = timeout ? timeout : KOFF_TIMEOUT;
do {
if (killable) {
rc = wait_for_completion_killable_timeout(
&dma->vsync_comp, tout);
} else {
rc = wait_for_completion_timeout(
&dma->vsync_comp, tout);
}
if (rc == -ERESTARTSYS)
return rc;
if (rc == 0) {
pr_err("%s: TIMEOUT (vsync_cnt: prev: %u cur: %u)\n",
__func__, prev_vsync_cnt, dma->vsync_cnt);
timeout_occurred = 1;
if (timeouts == 0 && dma->vsync_cnt > 0)
mdss_timeout_dump(__func__);
timeouts++;
} else {
if (timeout_occurred)
pr_info("%s: recovered from previous timeout\n",
__func__);
timeout_occurred = 0;
break;
}
} while (timeout == 0);
if (timeout == 0 && timeouts)
pr_err("%s: wait of %u ms timed out %d times!\n", __func__,
jiffies_to_msecs(tout), timeouts);
return rc;
}
void mdss_timeout_dropbox_trigger_callback(void *data)
{
mdss_timeout_dump((struct msm_fb_data_type *)data, __func__);
}
