Merge "disp: msm: sde: add delay after porches changed" into display-kernel.lnx.5.4

msm/sde/sde_encoder_phys.h

@@ -52,13 +52,16 @@ enum sde_enc_split_role {
  * @SDE_ENC_ENABLED:	Encoder is enabled
  * @SDE_ENC_ERR_NEEDS_HW_RESET:	Encoder is enabled, but requires a hw_reset
  *				to recover from a previous error
+ * @SDE_ENC_TIMING_ENGINE_RECONFIG: Encoder is enabled and timing engine
+ *				parameters are updated
  */
 enum sde_enc_enable_state {
 	SDE_ENC_DISABLING,
 	SDE_ENC_DISABLED,
 	SDE_ENC_ENABLING,
 	SDE_ENC_ENABLED,
-	SDE_ENC_ERR_NEEDS_HW_RESET
+	SDE_ENC_ERR_NEEDS_HW_RESET,
+	SDE_ENC_TIMING_ENGINE_RECONFIG,
 };
 
 struct sde_encoder_phys;

msm/sde/sde_encoder_phys_vid.c

@@ -830,6 +830,8 @@ skip_flush:
 	/* ctl_flush & timing engine enable will be triggered by framework */
 	if (phys_enc->enable_state == SDE_ENC_DISABLED)
 		phys_enc->enable_state = SDE_ENC_ENABLING;
+	if (phys_enc->enable_state == SDE_ENC_ENABLED)
+		phys_enc->enable_state = SDE_ENC_TIMING_ENGINE_RECONFIG;
 }
 
 static void sde_encoder_phys_vid_destroy(struct sde_encoder_phys *phys_enc)
@@ -1120,6 +1122,11 @@ static void sde_encoder_phys_vid_handle_post_kickoff(
 				lock_flags);
 		}
 		phys_enc->enable_state = SDE_ENC_ENABLED;
+	} else if (phys_enc->enable_state == SDE_ENC_TIMING_ENGINE_RECONFIG) {
+		/* add 2 vsync delay for timing engine change */
+		sde_encoder_phys_vid_single_vblank_wait(phys_enc);
+		sde_encoder_phys_vid_single_vblank_wait(phys_enc);
+		phys_enc->enable_state = SDE_ENC_ENABLED;
 	}
 
 	avr_mode = sde_connector_get_qsync_mode(phys_enc->connector);