msmfb: display: support for overlay wait ioctl
this adds supports for overlay wait ioctl and it allows the
userapce start overlay play and HDMI and can call wait
later point of the time
Change-Id: I8000cc52a497861e0a5fdfe58c0c049219724ab6
Signed-off-by: Nagamalleswararao Ganji <nganji@codeaurora.org>
diff --git a/drivers/video/msm/mdp4_overlay.c b/drivers/video/msm/mdp4_overlay.c
index 1b2dec4..f865edf 100644
--- a/drivers/video/msm/mdp4_overlay.c
+++ b/drivers/video/msm/mdp4_overlay.c
@@ -2262,6 +2262,29 @@
return ((row_num_w * row_num_h * tile_w * tile_h) + 8191) & ~8191;
}
+int mdp4_overlay_play_wait(struct fb_info *info, struct msmfb_overlay_data *req)
+{
+ struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)info->par;
+ struct mdp4_overlay_pipe *pipe;
+
+ if (mfd == NULL)
+ return -ENODEV;
+
+ if (!mfd->panel_power_on) /* suspended */
+ return -EPERM;
+
+ pipe = mdp4_overlay_ndx2pipe(req->id);
+
+ if (mutex_lock_interruptible(&mfd->dma->ov_mutex))
+ return -EINTR;
+
+ mdp4_overlay_dtv_wait_for_ov(mfd, pipe);
+
+ mutex_unlock(&mfd->dma->ov_mutex);
+
+ return 0;
+}
+
int mdp4_overlay_play(struct fb_info *info, struct msmfb_overlay_data *req,
struct file **pp_src_file, struct file **pp_src_plane1_file,
struct file **pp_src_plane2_file)