drm/i915: Store struct intel_crtc * in {pipe,plane}_to_crtc_mapping[]

A lot of users of the {pipe,plane}_to_crtc_mapping[] will end up
casting the result to intel_crtc, so let's just store the intel_crtc
pointer in the first place.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1477946245-14134-7-git-send-email-ville.syrjala@linux.intel.comReviewed-by: Chris Wilson <chris@chris-wilson.co.uk>

drivers/gpu/drm/i915/i915_debugfs.c

@@ -4065,8 +4065,7 @@ static void hsw_trans_edp_pipe_A_crc_wa(struct drm_i915_private *dev_priv,
 					bool enable)
 {
 	struct drm_device *dev = &dev_priv->drm;
-	struct intel_crtc *crtc =
-		to_intel_crtc(dev_priv->pipe_to_crtc_mapping[PIPE_A]);
+	struct intel_crtc *crtc = dev_priv->pipe_to_crtc_mapping[PIPE_A];
 	struct intel_crtc_state *pipe_config;
 	struct drm_atomic_state *state;
 	int ret = 0;
@@ -4134,8 +4133,7 @@ static int pipe_crc_set_source(struct drm_i915_private *dev_priv,
 {
 	struct drm_device *dev = &dev_priv->drm;
 	struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[pipe];
-	struct intel_crtc *crtc =
-			to_intel_crtc(intel_get_crtc_for_pipe(dev, pipe));
+	struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev, pipe);
 	enum intel_display_power_domain power_domain;
 	u32 val = 0; /* shut up gcc */
 	int ret;
@@ -4206,8 +4204,7 @@ static int pipe_crc_set_source(struct drm_i915_private *dev_priv,
 	/* real source -> none transition */
 	if (source == INTEL_PIPE_CRC_SOURCE_NONE) {
 		struct intel_pipe_crc_entry *entries;
-		struct intel_crtc *crtc =
-			to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
+		struct intel_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
 
 		DRM_DEBUG_DRIVER("stopping CRCs for pipe %c\n",
 				 pipe_name(pipe));

drivers/gpu/drm/i915/i915_drv.h

@@ -1935,8 +1935,8 @@ struct drm_i915_private {
 
 	/* Kernel Modesetting */
 
-	struct drm_crtc *plane_to_crtc_mapping[I915_MAX_PIPES];
-	struct drm_crtc *pipe_to_crtc_mapping[I915_MAX_PIPES];
+	struct intel_crtc *plane_to_crtc_mapping[I915_MAX_PIPES];
+	struct intel_crtc *pipe_to_crtc_mapping[I915_MAX_PIPES];
 	wait_queue_head_t pending_flip_queue;
 
 #ifdef CONFIG_DEBUG_FS

drivers/gpu/drm/i915/i915_irq.c

@@ -725,8 +725,7 @@ static u32 i915_get_vblank_counter(struct drm_device *dev, unsigned int pipe)
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	i915_reg_t high_frame, low_frame;
 	u32 high1, high2, low, pixel, vbl_start, hsync_start, htotal;
-	struct intel_crtc *intel_crtc =
-		to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
+	struct intel_crtc *intel_crtc = dev_priv->pipe_to_crtc_mapping[pipe];
 	const struct drm_display_mode *mode = &intel_crtc->base.hwmode;
 
 	htotal = mode->crtc_htotal;
@@ -831,8 +830,7 @@ static int i915_get_crtc_scanoutpos(struct drm_device *dev, unsigned int pipe,
 				    const struct drm_display_mode *mode)
 {
 	struct drm_i915_private *dev_priv = to_i915(dev);
-	struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	struct intel_crtc *intel_crtc = dev_priv->pipe_to_crtc_mapping[pipe];
 	int position;
 	int vbl_start, vbl_end, hsync_start, htotal, vtotal;
 	bool in_vbl = true;
@@ -967,7 +965,7 @@ static int i915_get_vblank_timestamp(struct drm_device *dev, unsigned int pipe,
 			      struct timeval *vblank_time,
 			      unsigned flags)
 {
-	struct drm_crtc *crtc;
+	struct intel_crtc *crtc;
 
 	if (pipe >= INTEL_INFO(dev)->num_pipes) {
 		DRM_ERROR("Invalid crtc %u\n", pipe);
@@ -981,7 +979,7 @@ static int i915_get_vblank_timestamp(struct drm_device *dev, unsigned int pipe,
 		return -EINVAL;
 	}
 
-	if (!crtc->hwmode.crtc_clock) {
+	if (!crtc->base.hwmode.crtc_clock) {
 		DRM_DEBUG_KMS("crtc %u is disabled\n", pipe);
 		return -EBUSY;
 	}
@@ -989,7 +987,7 @@ static int i915_get_vblank_timestamp(struct drm_device *dev, unsigned int pipe,
 	/* Helper routine in DRM core does all the work: */
 	return drm_calc_vbltimestamp_from_scanoutpos(dev, pipe, max_error,
 						     vblank_time, flags,
-						     &crtc->hwmode);
+						     &crtc->base.hwmode);
 }
 
 static void ironlake_rps_change_irq_handler(struct drm_i915_private *dev_priv)

drivers/gpu/drm/i915/intel_display.c

@@ -1030,10 +1030,9 @@ bool intel_crtc_active(struct intel_crtc *crtc)
 enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
 					     enum pipe pipe)
 {
-	struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	struct intel_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
 
-	return intel_crtc->config->cpu_transcoder;
+	return crtc->config->cpu_transcoder;
 }
 
 static bool pipe_dsl_stopped(struct drm_device *dev, enum pipe pipe)
@@ -1786,8 +1785,7 @@ void vlv_wait_port_ready(struct drm_i915_private *dev_priv,
 static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv,
 					   enum pipe pipe)
 {
-	struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	struct intel_crtc *intel_crtc = dev_priv->pipe_to_crtc_mapping[pipe];
 	i915_reg_t reg;
 	uint32_t val, pipeconf_val;
 
@@ -7073,7 +7071,7 @@ static int ironlake_check_fdi_lanes(struct drm_device *dev, enum pipe pipe,
 		if (pipe_config->fdi_lanes <= 2)
 			return 0;
 
-		other_crtc = to_intel_crtc(intel_get_crtc_for_pipe(dev, PIPE_C));
+		other_crtc = intel_get_crtc_for_pipe(dev, PIPE_C);
 		other_crtc_state =
 			intel_atomic_get_crtc_state(state, other_crtc);
 		if (IS_ERR(other_crtc_state))
@@ -7092,7 +7090,7 @@ static int ironlake_check_fdi_lanes(struct drm_device *dev, enum pipe pipe,
 			return -EINVAL;
 		}
 
-		other_crtc = to_intel_crtc(intel_get_crtc_for_pipe(dev, PIPE_B));
+		other_crtc = intel_get_crtc_for_pipe(dev, PIPE_B);
 		other_crtc_state =
 			intel_atomic_get_crtc_state(state, other_crtc);
 		if (IS_ERR(other_crtc_state))
@@ -8107,8 +8105,7 @@ static void chv_prepare_pll(struct intel_crtc *crtc,
 int vlv_force_pll_on(struct drm_device *dev, enum pipe pipe,
 		     const struct dpll *dpll)
 {
-	struct intel_crtc *crtc =
-		to_intel_crtc(intel_get_crtc_for_pipe(dev, pipe));
+	struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev, pipe);
 	struct intel_crtc_state *pipe_config;
 
 	pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL);
@@ -11663,8 +11660,7 @@ static bool pageflip_finished(struct intel_crtc *crtc,
 void intel_finish_page_flip_cs(struct drm_i915_private *dev_priv, int pipe)
 {
 	struct drm_device *dev = &dev_priv->drm;
-	struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	struct intel_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
 	struct intel_flip_work *work;
 	unsigned long flags;
 
@@ -11677,12 +11673,12 @@ void intel_finish_page_flip_cs(struct drm_i915_private *dev_priv, int pipe)
 	 * lost pageflips) so needs the full irqsave spinlocks.
 	 */
 	spin_lock_irqsave(&dev->event_lock, flags);
-	work = intel_crtc->flip_work;
+	work = crtc->flip_work;
 
 	if (work != NULL &&
 	    !is_mmio_work(work) &&
-	    pageflip_finished(intel_crtc, work))
-		page_flip_completed(intel_crtc);
+	    pageflip_finished(crtc, work))
+		page_flip_completed(crtc);
 
 	spin_unlock_irqrestore(&dev->event_lock, flags);
 }
@@ -11690,8 +11686,7 @@ void intel_finish_page_flip_cs(struct drm_i915_private *dev_priv, int pipe)
 void intel_finish_page_flip_mmio(struct drm_i915_private *dev_priv, int pipe)
 {
 	struct drm_device *dev = &dev_priv->drm;
-	struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	struct intel_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
 	struct intel_flip_work *work;
 	unsigned long flags;
 
@@ -11704,12 +11699,12 @@ void intel_finish_page_flip_mmio(struct drm_i915_private *dev_priv, int pipe)
 	 * lost pageflips) so needs the full irqsave spinlocks.
 	 */
 	spin_lock_irqsave(&dev->event_lock, flags);
-	work = intel_crtc->flip_work;
+	work = crtc->flip_work;
 
 	if (work != NULL &&
 	    is_mmio_work(work) &&
-	    pageflip_finished(intel_crtc, work))
-		page_flip_completed(intel_crtc);
+	    pageflip_finished(crtc, work))
+		page_flip_completed(crtc);
 
 	spin_unlock_irqrestore(&dev->event_lock, flags);
 }
@@ -12121,8 +12116,7 @@ static bool __pageflip_stall_check_cs(struct drm_i915_private *dev_priv,
 void intel_check_page_flip(struct drm_i915_private *dev_priv, int pipe)
 {
 	struct drm_device *dev = &dev_priv->drm;
-	struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	struct intel_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
 	struct intel_flip_work *work;
 
 	WARN_ON(!in_interrupt());
@@ -12131,19 +12125,19 @@ void intel_check_page_flip(struct drm_i915_private *dev_priv, int pipe)
 		return;
 
 	spin_lock(&dev->event_lock);
-	work = intel_crtc->flip_work;
+	work = crtc->flip_work;
 
 	if (work != NULL && !is_mmio_work(work) &&
-	    __pageflip_stall_check_cs(dev_priv, intel_crtc, work)) {
+	    __pageflip_stall_check_cs(dev_priv, crtc, work)) {
 		WARN_ONCE(1,
 			  "Kicking stuck page flip: queued at %d, now %d\n",
-			work->flip_queued_vblank, intel_crtc_get_vblank_counter(intel_crtc));
-		page_flip_completed(intel_crtc);
+			work->flip_queued_vblank, intel_crtc_get_vblank_counter(crtc));
+		page_flip_completed(crtc);
 		work = NULL;
 	}
 
 	if (work != NULL && !is_mmio_work(work) &&
-	    intel_crtc_get_vblank_counter(intel_crtc) - work->flip_queued_vblank > 1)
+	    intel_crtc_get_vblank_counter(crtc) - work->flip_queued_vblank > 1)
 		intel_queue_rps_boost_for_request(work->flip_queued_req);
 	spin_unlock(&dev->event_lock);
 }
@@ -14181,22 +14175,22 @@ static void intel_atomic_wait_for_vblanks(struct drm_device *dev,
 		return;
 
 	for_each_pipe(dev_priv, pipe) {
-		struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
+		struct intel_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
 
 		if (!((1 << pipe) & crtc_mask))
 			continue;
 
-		ret = drm_crtc_vblank_get(crtc);
+		ret = drm_crtc_vblank_get(&crtc->base);
 		if (WARN_ON(ret != 0)) {
 			crtc_mask &= ~(1 << pipe);
 			continue;
 		}
 
-		last_vblank_count[pipe] = drm_crtc_vblank_count(crtc);
+		last_vblank_count[pipe] = drm_crtc_vblank_count(&crtc->base);
 	}
 
 	for_each_pipe(dev_priv, pipe) {
-		struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
+		struct intel_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
 		long lret;
 
 		if (!((1 << pipe) & crtc_mask))
@@ -14204,12 +14198,12 @@ static void intel_atomic_wait_for_vblanks(struct drm_device *dev,
 
 		lret = wait_event_timeout(dev->vblank[pipe].queue,
 				last_vblank_count[pipe] !=
-					drm_crtc_vblank_count(crtc),
+					drm_crtc_vblank_count(&crtc->base),
 				msecs_to_jiffies(50));
 
 		WARN(!lret, "pipe %c vblank wait timed out\n", pipe_name(pipe));
 
-		drm_crtc_vblank_put(crtc);
+		drm_crtc_vblank_put(&crtc->base);
 	}
 }
 
@@ -15317,8 +15311,8 @@ static int intel_crtc_init(struct drm_device *dev, enum pipe pipe)
 
 	BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
 	       dev_priv->plane_to_crtc_mapping[intel_crtc->plane] != NULL);
-	dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = &intel_crtc->base;
-	dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = &intel_crtc->base;
+	dev_priv->plane_to_crtc_mapping[intel_crtc->plane] = intel_crtc;
+	dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = intel_crtc;
 
 	drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs);
 
@@ -16871,7 +16865,8 @@ static void intel_modeset_readout_hw_state(struct drm_device *dev)
 		pipe = 0;
 
 		if (encoder->get_hw_state(encoder, &pipe)) {
-			crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
+			crtc = dev_priv->pipe_to_crtc_mapping[pipe];
+
 			encoder->base.crtc = &crtc->base;
 			crtc->config->output_types |= 1 << encoder->type;
 			encoder->get_config(encoder, crtc->config);
@@ -16972,7 +16967,8 @@ intel_modeset_setup_hw_state(struct drm_device *dev)
 	}
 
 	for_each_pipe(dev_priv, pipe) {
-		crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
+		crtc = dev_priv->pipe_to_crtc_mapping[pipe];
+
 		intel_sanitize_crtc(crtc);
 		intel_dump_pipe_config(crtc, crtc->config,
 				       "[setup_hw_state]");

drivers/gpu/drm/i915/intel_drv.h

@@ -1028,14 +1028,14 @@ vlv_pipe_to_channel(enum pipe pipe)
 	}
 }
 
-static inline struct drm_crtc *
+static inline struct intel_crtc *
 intel_get_crtc_for_pipe(struct drm_device *dev, int pipe)
 {
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	return dev_priv->pipe_to_crtc_mapping[pipe];
 }
 
-static inline struct drm_crtc *
+static inline struct intel_crtc *
 intel_get_crtc_for_plane(struct drm_device *dev, int plane)
 {
 	struct drm_i915_private *dev_priv = to_i915(dev);
@@ -1251,8 +1251,7 @@ intel_wait_for_vblank(struct drm_device *dev, int pipe)
 static inline void
 intel_wait_for_vblank_if_active(struct drm_device *dev, int pipe)
 {
-	const struct intel_crtc *crtc =
-		to_intel_crtc(intel_get_crtc_for_pipe(dev, pipe));
+	const struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev, pipe);
 
 	if (crtc->active)
 		intel_wait_for_vblank(dev, pipe);

drivers/gpu/drm/i915/intel_dvo.c

@@ -393,12 +393,12 @@ intel_dvo_get_current_mode(struct drm_connector *connector)
 	 * its timings to get how the BIOS set up the panel.
 	 */
 	if (dvo_val & DVO_ENABLE) {
-		struct drm_crtc *crtc;
+		struct intel_crtc *crtc;
 		int pipe = (dvo_val & DVO_PIPE_B_SELECT) ? 1 : 0;
 
 		crtc = intel_get_crtc_for_pipe(dev, pipe);
 		if (crtc) {
-			mode = intel_crtc_mode_get(dev, crtc);
+			mode = intel_crtc_mode_get(dev, &crtc->base);
 			if (mode) {
 				mode->type |= DRM_MODE_TYPE_PREFERRED;
 				if (dvo_val & DVO_HSYNC_ACTIVE_HIGH)

drivers/gpu/drm/i915/intel_fifo_underrun.c

@@ -57,7 +57,7 @@ static bool ivb_can_enable_err_int(struct drm_device *dev)
 	assert_spin_locked(&dev_priv->irq_lock);
 
 	for_each_pipe(dev_priv, pipe) {
-		crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
+		crtc = dev_priv->pipe_to_crtc_mapping[pipe];
 
 		if (crtc->cpu_fifo_underrun_disabled)
 			return false;
@@ -75,7 +75,7 @@ static bool cpt_can_enable_serr_int(struct drm_device *dev)
 	assert_spin_locked(&dev_priv->irq_lock);
 
 	for_each_pipe(dev_priv, pipe) {
-		crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
+		crtc = dev_priv->pipe_to_crtc_mapping[pipe];
 
 		if (crtc->pch_fifo_underrun_disabled)
 			return false;
@@ -245,14 +245,13 @@ static bool __intel_set_cpu_fifo_underrun_reporting(struct drm_device *dev,
 						    enum pipe pipe, bool enable)
 {
 	struct drm_i915_private *dev_priv = to_i915(dev);
-	struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	struct intel_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
 	bool old;
 
 	assert_spin_locked(&dev_priv->irq_lock);
 
-	old = !intel_crtc->cpu_fifo_underrun_disabled;
-	intel_crtc->cpu_fifo_underrun_disabled = !enable;
+	old = !crtc->cpu_fifo_underrun_disabled;
+	crtc->cpu_fifo_underrun_disabled = !enable;
 
 	if (HAS_GMCH_DISPLAY(dev_priv))
 		i9xx_set_fifo_underrun_reporting(dev, pipe, enable, old);
@@ -314,8 +313,7 @@ bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
 					   enum transcoder pch_transcoder,
 					   bool enable)
 {
-	struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pch_transcoder];
-	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	struct intel_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pch_transcoder];
 	unsigned long flags;
 	bool old;
 
@@ -330,8 +328,8 @@ bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
 
 	spin_lock_irqsave(&dev_priv->irq_lock, flags);
 
-	old = !intel_crtc->pch_fifo_underrun_disabled;
-	intel_crtc->pch_fifo_underrun_disabled = !enable;
+	old = !crtc->pch_fifo_underrun_disabled;
+	crtc->pch_fifo_underrun_disabled = !enable;
 
 	if (HAS_PCH_IBX(dev_priv))
 		ibx_set_fifo_underrun_reporting(&dev_priv->drm,
@@ -358,7 +356,7 @@ bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
 void intel_cpu_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
 					 enum pipe pipe)
 {
-	struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
+	struct intel_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
 
 	/* We may be called too early in init, thanks BIOS! */
 	if (crtc == NULL)
@@ -366,7 +364,7 @@ void intel_cpu_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
 
 	/* GMCH can't disable fifo underruns, filter them. */
 	if (HAS_GMCH_DISPLAY(dev_priv) &&
-	    to_intel_crtc(crtc)->cpu_fifo_underrun_disabled)
+	    crtc->cpu_fifo_underrun_disabled)
 		return;
 
 	if (intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false))

drivers/gpu/drm/i915/intel_lvds.c

@@ -985,7 +985,7 @@ void intel_lvds_init(struct drm_device *dev)
 	struct drm_display_mode *fixed_mode = NULL;
 	struct drm_display_mode *downclock_mode = NULL;
 	struct edid *edid;
-	struct drm_crtc *crtc;
+	struct intel_crtc *crtc;
 	i915_reg_t lvds_reg;
 	u32 lvds;
 	int pipe;
@@ -1166,7 +1166,7 @@ void intel_lvds_init(struct drm_device *dev)
 	crtc = intel_get_crtc_for_pipe(dev, pipe);
 
 	if (crtc && (lvds & LVDS_PORT_EN)) {
-		fixed_mode = intel_crtc_mode_get(dev, crtc);
+		fixed_mode = intel_crtc_mode_get(dev, &crtc->base);
 		if (fixed_mode) {
 			DRM_DEBUG_KMS("using current (BIOS) mode: ");
 			drm_mode_debug_printmodeline(fixed_mode);

drivers/gpu/drm/i915/intel_pm.c

@@ -728,7 +728,7 @@ static bool g4x_compute_wm0(struct drm_device *dev,
 	int line_time_us, line_count;
 	int entries, tlb_miss;
 
-	crtc = to_intel_crtc(intel_get_crtc_for_plane(dev, plane));
+	crtc = intel_get_crtc_for_plane(dev, plane);
 	if (!intel_crtc_active(crtc)) {
 		*cursor_wm = cursor->guard_size;
 		*plane_wm = display->guard_size;
@@ -823,7 +823,7 @@ static bool g4x_compute_srwm(struct drm_device *dev,
 		return false;
 	}
 
-	crtc = to_intel_crtc(intel_get_crtc_for_plane(dev, plane));
+	crtc = intel_get_crtc_for_plane(dev, plane);
 	adjusted_mode = &crtc->config->base.adjusted_mode;
 	fb = crtc->base.primary->state->fb;
 	clock = adjusted_mode->crtc_clock;
@@ -1546,7 +1546,7 @@ static void i9xx_update_wm(struct intel_crtc *unused_crtc)
 		wm_info = &i830_a_wm_info;
 
 	fifo_size = dev_priv->display.get_fifo_size(dev, 0);
-	crtc = to_intel_crtc(intel_get_crtc_for_plane(dev, 0));
+	crtc = intel_get_crtc_for_plane(dev, 0);
 	if (intel_crtc_active(crtc)) {
 		const struct drm_display_mode *adjusted_mode =
 			&crtc->config->base.adjusted_mode;
@@ -1573,7 +1573,7 @@ static void i9xx_update_wm(struct intel_crtc *unused_crtc)
 		wm_info = &i830_bc_wm_info;
 
 	fifo_size = dev_priv->display.get_fifo_size(dev, 1);
-	crtc = to_intel_crtc(intel_get_crtc_for_plane(dev, 1));
+	crtc = intel_get_crtc_for_plane(dev, 1);
 	if (intel_crtc_active(crtc)) {
 		const struct drm_display_mode *adjusted_mode =
 			&crtc->config->base.adjusted_mode;
@@ -3066,7 +3066,7 @@ bool intel_can_enable_sagv(struct drm_atomic_state *state)
 
 	/* Since we're now guaranteed to only have one active CRTC... */
 	pipe = ffs(intel_state->active_crtcs) - 1;
-	crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
+	crtc = dev_priv->pipe_to_crtc_mapping[pipe];
 	cstate = to_intel_crtc_state(crtc->base.state);
 
 	if (crtc->base.state->adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE)