disp: msm: sde: wait for specific pp_done instead of zero

2 Frames transfer pending is possible with posted start.
One ongoing frame and another triggered frame. Current SW
waits for pp_done interrupt if pending frame count is greater
than 1. It is possible that interrupt may be missed for ongoing
frame. In that case, SW should run pp_done wait for one by one
frame instead of two frames together. It allows encoder to
check the ctl scheduler status and trigger the frame done
event on time.

Change-Id: I4817842292d96747890ee70da8a5bdf9b56816ed
Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>

msm/sde/sde_encoder_phys.h

@@ -458,11 +458,13 @@ struct sde_enc_phys_init_params {
  * sde_encoder_wait_info - container for passing arguments to irq wait functions
  * @wq: wait queue structure
  * @atomic_cnt: wait until atomic_cnt equals zero
+ * @count_check: wait for specific atomic_cnt instead of zero.
  * @timeout_ms: timeout value in milliseconds
  */
 struct sde_encoder_wait_info {
 	wait_queue_head_t *wq;
 	atomic_t *atomic_cnt;
+	u32 count_check;
 	s64 timeout_ms;
 };