static void mdp4_dsi_video_wait4ov(int cndx)
{
struct vsycn_ctrl *vctrl;
if (cndx >= MAX_CONTROLLER) {
pr_err("%s: out or range: cndx=%d\n", __func__, cndx);
return;
}
vctrl = &vsync_ctrl_db[cndx];
if (atomic_read(&vctrl->suspend) > 0)
return;
if (!wait_for_completion_timeout(
&vctrl->ov_comp, msecs_to_jiffies(100))){
pr_err("%s %d TIMEOUT_\n", __func__, __LINE__);
#ifdef CONFIG_MACH_LGE
/* LGE_CHANGE
* Workaround for BLT hang issue
* 2012-10-29, [email protected]
*/
mdp4_dsi_video_blt_stop(vctrl->mfd);
mdp4_dsi_video_blt_start(vctrl->mfd);
#endif
}
}
static void mdp4_overlay_dsi_video_dma_busy_wait(struct msm_fb_data_type *mfd)
{
unsigned long flag;
int need_wait = 0;
pr_debug("%s: start pid=%d\n", __func__, current->pid);
spin_lock_irqsave(&mdp_spin_lock, flag);
if (mfd->dma->busy == TRUE) {
INIT_COMPLETION(mfd->dma->comp);
need_wait++;
}
spin_unlock_irqrestore(&mdp_spin_lock, flag);
if (need_wait) {
/* wait until DMA finishes the current job */
pr_debug("%s: pending pid=%d\n", __func__, current->pid);
#if defined (LGE_BLT_LOCKUP_WR)
if(!wait_for_completion_timeout(&mfd->dma->comp, 1*HZ*0.5)) {
printk("BLT mode change count %u \n", blt_ent);
mdp4_dsi_video_blt_stop(mfd);
mdp4_dsi_video_blt_start(mfd);
}
#else
wait_for_completion(&mfd->dma->comp);
#endif
}
pr_debug("%s: done pid=%d\n", __func__, current->pid);
}