disp: msm: sde: avoid setting of max vblank count

This change avoids setting of max vblank count in crtc
enable if accurate vsync timestamp feature is disabled.

Change-Id: I6d8299359f581a162a7412da8c9b673e3aeae041
Signed-off-by: Mahadevan <[email protected]>

msm/sde/sde_crtc.c

@@ -4595,11 +4595,18 @@ static void sde_crtc_enable(struct drm_crtc *crtc,
 	int ret, i;
 	struct sde_crtc_state *cstate;
 	struct msm_display_mode *msm_mode;
+	struct sde_kms *kms;
 
 	if (!crtc || !crtc->dev || !crtc->dev->dev_private) {
 		SDE_ERROR("invalid crtc\n");
 		return;
 	}
+	kms = _sde_crtc_get_kms(crtc);
+	if (!kms || !kms->catalog) {
+		SDE_ERROR("invalid kms handle\n");
+		return;
+	}
+
 	priv = crtc->dev->dev_private;
 	cstate = to_sde_crtc_state(crtc->state);
 
@@ -4620,7 +4627,8 @@ static void sde_crtc_enable(struct drm_crtc *crtc,
 		/* cache the encoder mask now for vblank work */
 		sde_crtc->cached_encoder_mask = crtc->state->encoder_mask;
 		/* max possible vsync_cnt(atomic_t) soft counter */
-		drm_crtc_set_max_vblank_count(crtc, INT_MAX);
+		if (kms->catalog->has_precise_vsync_ts)
+			drm_crtc_set_max_vblank_count(crtc, INT_MAX);
 		drm_crtc_vblank_on(crtc);
 	}