drm/i915: clean up encoder_prepare/commit

We no longer need them. And now that all encoders are converted, we
can finally move the cpt modeset check to the right place - at the end
of the crtc_enable function.
Reviewed-by: NJesse Barnes <jbarnes@virtuousgeek.org>
Signed-Off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/intel_display.c

@@ -3269,6 +3269,9 @@ static void ironlake_crtc_enable(struct drm_crtc *crtc)
 encoders:
 	for_each_encoder_on_crtc(dev, crtc, encoder)
 		encoder->enable(encoder);
+
+	if (HAS_PCH_CPT(dev))
+		intel_cpt_verify_modeset(dev, intel_crtc->pipe);
 }
 
 static void ironlake_crtc_disable(struct drm_crtc *crtc)
@@ -3524,26 +3527,6 @@ static void intel_crtc_disable(struct drm_crtc *crtc)
 	}
 }
 
-void intel_encoder_prepare(struct drm_encoder *encoder)
-{
-	struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
-	/* lvds has its own version of prepare see intel_lvds_prepare */
-	encoder_funcs->dpms(encoder, DRM_MODE_DPMS_OFF);
-}
-
-void intel_encoder_commit(struct drm_encoder *encoder)
-{
-	struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
-	struct drm_device *dev = encoder->dev;
-	struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
-
-	/* lvds has its own version of commit see intel_lvds_commit */
-	encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON);
-
-	if (HAS_PCH_CPT(dev))
-		intel_cpt_verify_modeset(dev, intel_crtc->pipe);
-}
-
 void intel_encoder_noop(struct drm_encoder *encoder)
 {
 }

drivers/gpu/drm/i915/intel_drv.h

@@ -412,8 +412,6 @@ extern enum drm_connector_status intel_panel_detect(struct drm_device *dev);
 
 extern void intel_crtc_load_lut(struct drm_crtc *crtc);
 extern void intel_crtc_update_dpms(struct drm_crtc *crtc);
-extern void intel_encoder_prepare(struct drm_encoder *encoder);
-extern void intel_encoder_commit(struct drm_encoder *encoder);
 extern void intel_encoder_noop(struct drm_encoder *encoder);
 extern void intel_encoder_disable(struct drm_encoder *encoder);
 extern void intel_encoder_destroy(struct drm_encoder *encoder);