Revert "disp: msm: sde: turn off/on vblank callbacks as per crtc"

This reverts commit 16bfab7ddf.

Change-Id: I5c5ef6a2fcb83607acd2c737f574199c010c89fa
Signed-off-by: Manoj Kumar AVM <manojavm@codeaurora.org>

msm/sde/sde_crtc.c

@@ -3813,7 +3813,6 @@ static void sde_crtc_reset(struct drm_crtc *crtc)
 
 	cstate->base.crtc = crtc;
 	crtc->state = &cstate->base;
-	drm_crtc_vblank_reset(crtc);
 }
 
 static void sde_crtc_handle_power_event(u32 event_type, void *arg)
@@ -3974,8 +3973,6 @@ static void sde_crtc_disable(struct drm_crtc *crtc)
 
 	SDE_DEBUG("crtc%d\n", crtc->base.id);
 
-	drm_crtc_vblank_off(crtc);
-
 	if (sde_kms_is_suspend_state(crtc->dev))
 		_sde_crtc_set_suspend(crtc, true);
 
@@ -4114,8 +4111,6 @@ static void sde_crtc_enable(struct drm_crtc *crtc,
 	SDE_EVT32_VERBOSE(DRMID(crtc));
 	sde_crtc = to_sde_crtc(crtc);
 
-	drm_crtc_vblank_on(crtc);
-
 	mutex_lock(&sde_crtc->crtc_lock);
 	SDE_EVT32(DRMID(crtc), sde_crtc->enabled, sde_crtc->suspend,
 			sde_crtc->vblank_requested);