drm/msm: rename mdp->disp

Since new display controller is called "dpu" instead of "mdp".  Lets
make the name of the toplevel directory for the display controllers a
bit more generic.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>

1 files changed, 1194 insertions, 0 deletions

diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c
new file mode 100644
index 000000000000..8c5ed0b59e46
--- /dev/null
+++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c
@@ -0,0 +1,1194 @@
+/*
+ * Copyright (c) 2014-2015 The Linux Foundation. All rights reserved.
+ * Copyright (C) 2013 Red Hat
+ * Author: Rob Clark <robdclark@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/sort.h>
+#include <drm/drm_mode.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_flip_work.h>
+
+#include "mdp5_kms.h"
+
+#define CURSOR_WIDTH	64
+#define CURSOR_HEIGHT	64
+
+struct mdp5_crtc {
+	struct drm_crtc base;
+	int id;
+	bool enabled;
+
+	spinlock_t lm_lock;     /* protect REG_MDP5_LM_* registers */
+
+	/* if there is a pending flip, these will be non-null: */
+	struct drm_pending_vblank_event *event;
+
+	/* Bits have been flushed at the last commit,
+	 * used to decide if a vsync has happened since last commit.
+	 */
+	u32 flushed_mask;
+
+#define PENDING_CURSOR 0x1
+#define PENDING_FLIP   0x2
+	atomic_t pending;
+
+	/* for unref'ing cursor bo's after scanout completes: */
+	struct drm_flip_work unref_cursor_work;
+
+	struct mdp_irq vblank;
+	struct mdp_irq err;
+	struct mdp_irq pp_done;
+
+	struct completion pp_completion;
+
+	bool lm_cursor_enabled;
+
+	struct {
+		/* protect REG_MDP5_LM_CURSOR* registers and cursor scanout_bo*/
+		spinlock_t lock;
+
+		/* current cursor being scanned out: */
+		struct drm_gem_object *scanout_bo;
+		uint64_t iova;
+		uint32_t width, height;
+		uint32_t x, y;
+	} cursor;
+};
+#define to_mdp5_crtc(x) container_of(x, struct mdp5_crtc, base)
+
+static void mdp5_crtc_restore_cursor(struct drm_crtc *crtc);
+
+static struct mdp5_kms *get_kms(struct drm_crtc *crtc)
+{
+	struct msm_drm_private *priv = crtc->dev->dev_private;
+	return to_mdp5_kms(to_mdp_kms(priv->kms));
+}
+
+static void request_pending(struct drm_crtc *crtc, uint32_t pending)
+{
+	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+
+	atomic_or(pending, &mdp5_crtc->pending);
+	mdp_irq_register(&get_kms(crtc)->base, &mdp5_crtc->vblank);
+}
+
+static void request_pp_done_pending(struct drm_crtc *crtc)
+{
+	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+	reinit_completion(&mdp5_crtc->pp_completion);
+}
+
+static u32 crtc_flush(struct drm_crtc *crtc, u32 flush_mask)
+{
+	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+	struct mdp5_ctl *ctl = mdp5_cstate->ctl;
+	struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline;
+
+	DBG("%s: flush=%08x", crtc->name, flush_mask);
+	return mdp5_ctl_commit(ctl, pipeline, flush_mask);
+}
+
+/*
+ * flush updates, to make sure hw is updated to new scanout fb,
+ * so that we can safely queue unref to current fb (ie. next
+ * vblank we know hw is done w/ previous scanout_fb).
+ */
+static u32 crtc_flush_all(struct drm_crtc *crtc)
+{
+	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+	struct mdp5_hw_mixer *mixer, *r_mixer;
+	struct drm_plane *plane;
+	uint32_t flush_mask = 0;
+
+	/* this should not happen: */
+	if (WARN_ON(!mdp5_cstate->ctl))
+		return 0;
+
+	drm_atomic_crtc_for_each_plane(plane, crtc) {
+		if (!plane->state->visible)
+			continue;
+		flush_mask |= mdp5_plane_get_flush(plane);
+	}
+
+	mixer = mdp5_cstate->pipeline.mixer;
+	flush_mask |= mdp_ctl_flush_mask_lm(mixer->lm);
+
+	r_mixer = mdp5_cstate->pipeline.r_mixer;
+	if (r_mixer)
+		flush_mask |= mdp_ctl_flush_mask_lm(r_mixer->lm);
+
+	return crtc_flush(crtc, flush_mask);
+}
+
+/* if file!=NULL, this is preclose potential cancel-flip path */
+static void complete_flip(struct drm_crtc *crtc, struct drm_file *file)
+{
+	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+	struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline;
+	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+	struct mdp5_ctl *ctl = mdp5_cstate->ctl;
+	struct drm_device *dev = crtc->dev;
+	struct drm_pending_vblank_event *event;
+	unsigned long flags;
+
+	spin_lock_irqsave(&dev->event_lock, flags);
+	event = mdp5_crtc->event;
+	if (event) {
+		mdp5_crtc->event = NULL;
+		DBG("%s: send event: %p", crtc->name, event);
+		drm_crtc_send_vblank_event(crtc, event);
+	}
+	spin_unlock_irqrestore(&dev->event_lock, flags);
+
+	if (ctl && !crtc->state->enable) {
+		/* set STAGE_UNUSED for all layers */
+		mdp5_ctl_blend(ctl, pipeline, NULL, NULL, 0, 0);
+		/* XXX: What to do here? */
+		/* mdp5_crtc->ctl = NULL; */
+	}
+}
+
+static void unref_cursor_worker(struct drm_flip_work *work, void *val)
+{
+	struct mdp5_crtc *mdp5_crtc =
+		container_of(work, struct mdp5_crtc, unref_cursor_work);
+	struct mdp5_kms *mdp5_kms = get_kms(&mdp5_crtc->base);
+	struct msm_kms *kms = &mdp5_kms->base.base;
+
+	msm_gem_put_iova(val, kms->aspace);
+	drm_gem_object_put_unlocked(val);
+}
+
+static void mdp5_crtc_destroy(struct drm_crtc *crtc)
+{
+	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+
+	drm_crtc_cleanup(crtc);
+	drm_flip_work_cleanup(&mdp5_crtc->unref_cursor_work);
+
+	kfree(mdp5_crtc);
+}
+
+static inline u32 mdp5_lm_use_fg_alpha_mask(enum mdp_mixer_stage_id stage)
+{
+	switch (stage) {
+	case STAGE0: return MDP5_LM_BLEND_COLOR_OUT_STAGE0_FG_ALPHA;
+	case STAGE1: return MDP5_LM_BLEND_COLOR_OUT_STAGE1_FG_ALPHA;
+	case STAGE2: return MDP5_LM_BLEND_COLOR_OUT_STAGE2_FG_ALPHA;
+	case STAGE3: return MDP5_LM_BLEND_COLOR_OUT_STAGE3_FG_ALPHA;
+	case STAGE4: return MDP5_LM_BLEND_COLOR_OUT_STAGE4_FG_ALPHA;
+	case STAGE5: return MDP5_LM_BLEND_COLOR_OUT_STAGE5_FG_ALPHA;
+	case STAGE6: return MDP5_LM_BLEND_COLOR_OUT_STAGE6_FG_ALPHA;
+	default:
+		return 0;
+	}
+}
+
+/*
+ * left/right pipe offsets for the stage array used in blend_setup()
+ */
+#define PIPE_LEFT	0
+#define PIPE_RIGHT	1
+
+/*
+ * blend_setup() - blend all the planes of a CRTC
+ *
+ * If no base layer is available, border will be enabled as the base layer.
+ * Otherwise all layers will be blended based on their stage calculated
+ * in mdp5_crtc_atomic_check.
+ */
+static void blend_setup(struct drm_crtc *crtc)
+{
+	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+	struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline;
+	struct mdp5_kms *mdp5_kms = get_kms(crtc);
+	struct drm_plane *plane;
+	const struct mdp5_cfg_hw *hw_cfg;
+	struct mdp5_plane_state *pstate, *pstates[STAGE_MAX + 1] = {NULL};
+	const struct mdp_format *format;
+	struct mdp5_hw_mixer *mixer = pipeline->mixer;
+	uint32_t lm = mixer->lm;
+	struct mdp5_hw_mixer *r_mixer = pipeline->r_mixer;
+	uint32_t r_lm = r_mixer ? r_mixer->lm : 0;
+	struct mdp5_ctl *ctl = mdp5_cstate->ctl;
+	uint32_t blend_op, fg_alpha, bg_alpha, ctl_blend_flags = 0;
+	unsigned long flags;
+	enum mdp5_pipe stage[STAGE_MAX + 1][MAX_PIPE_STAGE] = { { SSPP_NONE } };
+	enum mdp5_pipe r_stage[STAGE_MAX + 1][MAX_PIPE_STAGE] = { { SSPP_NONE } };
+	int i, plane_cnt = 0;
+	bool bg_alpha_enabled = false;
+	u32 mixer_op_mode = 0;
+	u32 val;
+#define blender(stage)	((stage) - STAGE0)
+
+	hw_cfg = mdp5_cfg_get_hw_config(mdp5_kms->cfg);
+
+	spin_lock_irqsave(&mdp5_crtc->lm_lock, flags);
+
+	/* ctl could be released already when we are shutting down: */
+	/* XXX: Can this happen now? */
+	if (!ctl)
+		goto out;
+
+	/* Collect all plane information */
+	drm_atomic_crtc_for_each_plane(plane, crtc) {
+		enum mdp5_pipe right_pipe;
+
+		if (!plane->state->visible)
+			continue;
+
+		pstate = to_mdp5_plane_state(plane->state);
+		pstates[pstate->stage] = pstate;
+		stage[pstate->stage][PIPE_LEFT] = mdp5_plane_pipe(plane);
+		/*
+		 * if we have a right mixer, stage the same pipe as we
+		 * have on the left mixer
+		 */
+		if (r_mixer)
+			r_stage[pstate->stage][PIPE_LEFT] =
+						mdp5_plane_pipe(plane);
+		/*
+		 * if we have a right pipe (i.e, the plane comprises of 2
+		 * hwpipes, then stage the right pipe on the right side of both
+		 * the layer mixers
+		 */
+		right_pipe = mdp5_plane_right_pipe(plane);
+		if (right_pipe) {
+			stage[pstate->stage][PIPE_RIGHT] = right_pipe;
+			r_stage[pstate->stage][PIPE_RIGHT] = right_pipe;
+		}
+
+		plane_cnt++;
+	}
+
+	if (!pstates[STAGE_BASE]) {
+		ctl_blend_flags |= MDP5_CTL_BLEND_OP_FLAG_BORDER_OUT;
+		DBG("Border Color is enabled");
+	} else if (plane_cnt) {
+		format = to_mdp_format(msm_framebuffer_format(pstates[STAGE_BASE]->base.fb));
+
+		if (format->alpha_enable)
+			bg_alpha_enabled = true;
+	}
+
+	/* The reset for blending */
+	for (i = STAGE0; i <= STAGE_MAX; i++) {
+		if (!pstates[i])
+			continue;
+
+		format = to_mdp_format(
+			msm_framebuffer_format(pstates[i]->base.fb));
+		plane = pstates[i]->base.plane;
+		blend_op = MDP5_LM_BLEND_OP_MODE_FG_ALPHA(FG_CONST) |
+			MDP5_LM_BLEND_OP_MODE_BG_ALPHA(BG_CONST);
+		fg_alpha = pstates[i]->alpha;
+		bg_alpha = 0xFF - pstates[i]->alpha;
+
+		if (!format->alpha_enable && bg_alpha_enabled)
+			mixer_op_mode = 0;
+		else
+			mixer_op_mode |= mdp5_lm_use_fg_alpha_mask(i);
+
+		DBG("Stage %d fg_alpha %x bg_alpha %x", i, fg_alpha, bg_alpha);
+
+		if (format->alpha_enable && pstates[i]->premultiplied) {
+			blend_op = MDP5_LM_BLEND_OP_MODE_FG_ALPHA(FG_CONST) |
+				MDP5_LM_BLEND_OP_MODE_BG_ALPHA(FG_PIXEL);
+			if (fg_alpha != 0xff) {
+				bg_alpha = fg_alpha;
+				blend_op |=
+					MDP5_LM_BLEND_OP_MODE_BG_MOD_ALPHA |
+					MDP5_LM_BLEND_OP_MODE_BG_INV_MOD_ALPHA;
+			} else {
+				blend_op |= MDP5_LM_BLEND_OP_MODE_BG_INV_ALPHA;
+			}
+		} else if (format->alpha_enable) {
+			blend_op = MDP5_LM_BLEND_OP_MODE_FG_ALPHA(FG_PIXEL) |
+				MDP5_LM_BLEND_OP_MODE_BG_ALPHA(FG_PIXEL);
+			if (fg_alpha != 0xff) {
+				bg_alpha = fg_alpha;
+				blend_op |=
+				       MDP5_LM_BLEND_OP_MODE_FG_MOD_ALPHA |
+				       MDP5_LM_BLEND_OP_MODE_FG_INV_MOD_ALPHA |
+				       MDP5_LM_BLEND_OP_MODE_BG_MOD_ALPHA |
+				       MDP5_LM_BLEND_OP_MODE_BG_INV_MOD_ALPHA;
+			} else {
+				blend_op |= MDP5_LM_BLEND_OP_MODE_BG_INV_ALPHA;
+			}
+		}
+
+		mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_OP_MODE(lm,
+				blender(i)), blend_op);
+		mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_FG_ALPHA(lm,
+				blender(i)), fg_alpha);
+		mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_BG_ALPHA(lm,
+				blender(i)), bg_alpha);
+		if (r_mixer) {
+			mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_OP_MODE(r_lm,
+					blender(i)), blend_op);
+			mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_FG_ALPHA(r_lm,
+					blender(i)), fg_alpha);
+			mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_BG_ALPHA(r_lm,
+					blender(i)), bg_alpha);
+		}
+	}
+
+	val = mdp5_read(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(lm));
+	mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(lm),
+		   val | mixer_op_mode);
+	if (r_mixer) {
+		val = mdp5_read(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(r_lm));
+		mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(r_lm),
+			   val | mixer_op_mode);
+	}
+
+	mdp5_ctl_blend(ctl, pipeline, stage, r_stage, plane_cnt,
+		       ctl_blend_flags);
+out:
+	spin_unlock_irqrestore(&mdp5_crtc->lm_lock, flags);
+}
+
+static void mdp5_crtc_mode_set_nofb(struct drm_crtc *crtc)
+{
+	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+	struct mdp5_kms *mdp5_kms = get_kms(crtc);
+	struct mdp5_hw_mixer *mixer = mdp5_cstate->pipeline.mixer;
+	struct mdp5_hw_mixer *r_mixer = mdp5_cstate->pipeline.r_mixer;
+	uint32_t lm = mixer->lm;
+	u32 mixer_width, val;
+	unsigned long flags;
+	struct drm_display_mode *mode;
+
+	if (WARN_ON(!crtc->state))
+		return;
+
+	mode = &crtc->state->adjusted_mode;
+
+	DBG("%s: set mode: %d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x",
+			crtc->name, mode->base.id, mode->name,
+			mode->vrefresh, mode->clock,
+			mode->hdisplay, mode->hsync_start,
+			mode->hsync_end, mode->htotal,
+			mode->vdisplay, mode->vsync_start,
+			mode->vsync_end, mode->vtotal,
+			mode->type, mode->flags);
+
+	mixer_width = mode->hdisplay;
+	if (r_mixer)
+		mixer_width /= 2;
+
+	spin_lock_irqsave(&mdp5_crtc->lm_lock, flags);
+	mdp5_write(mdp5_kms, REG_MDP5_LM_OUT_SIZE(lm),
+			MDP5_LM_OUT_SIZE_WIDTH(mixer_width) |
+			MDP5_LM_OUT_SIZE_HEIGHT(mode->vdisplay));
+
+	/* Assign mixer to LEFT side in source split mode */
+	val = mdp5_read(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(lm));
+	val &= ~MDP5_LM_BLEND_COLOR_OUT_SPLIT_LEFT_RIGHT;
+	mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(lm), val);
+
+	if (r_mixer) {
+		u32 r_lm = r_mixer->lm;
+
+		mdp5_write(mdp5_kms, REG_MDP5_LM_OUT_SIZE(r_lm),
+			   MDP5_LM_OUT_SIZE_WIDTH(mixer_width) |
+			   MDP5_LM_OUT_SIZE_HEIGHT(mode->vdisplay));
+
+		/* Assign mixer to RIGHT side in source split mode */
+		val = mdp5_read(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(r_lm));
+		val |= MDP5_LM_BLEND_COLOR_OUT_SPLIT_LEFT_RIGHT;
+		mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(r_lm), val);
+	}
+
+	spin_unlock_irqrestore(&mdp5_crtc->lm_lock, flags);
+}
+
+static void mdp5_crtc_atomic_disable(struct drm_crtc *crtc,
+				     struct drm_crtc_state *old_state)
+{
+	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+	struct mdp5_kms *mdp5_kms = get_kms(crtc);
+	struct device *dev = &mdp5_kms->pdev->dev;
+
+	DBG("%s", crtc->name);
+
+	if (WARN_ON(!mdp5_crtc->enabled))
+		return;
+
+	/* Disable/save vblank irq handling before power is disabled */
+	drm_crtc_vblank_off(crtc);
+
+	if (mdp5_cstate->cmd_mode)
+		mdp_irq_unregister(&mdp5_kms->base, &mdp5_crtc->pp_done);
+
+	mdp_irq_unregister(&mdp5_kms->base, &mdp5_crtc->err);
+	pm_runtime_put_sync(dev);
+
+	mdp5_crtc->enabled = false;
+}
+
+static void mdp5_crtc_atomic_enable(struct drm_crtc *crtc,
+				    struct drm_crtc_state *old_state)
+{
+	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+	struct mdp5_kms *mdp5_kms = get_kms(crtc);
+	struct device *dev = &mdp5_kms->pdev->dev;
+
+	DBG("%s", crtc->name);
+
+	if (WARN_ON(mdp5_crtc->enabled))
+		return;
+
+	pm_runtime_get_sync(dev);
+
+	if (mdp5_crtc->lm_cursor_enabled) {
+		/*
+		 * Restore LM cursor state, as it might have been lost
+		 * with suspend:
+		 */
+		if (mdp5_crtc->cursor.iova) {
+			unsigned long flags;
+
+			spin_lock_irqsave(&mdp5_crtc->cursor.lock, flags);
+			mdp5_crtc_restore_cursor(crtc);
+			spin_unlock_irqrestore(&mdp5_crtc->cursor.lock, flags);
+
+			mdp5_ctl_set_cursor(mdp5_cstate->ctl,
+					    &mdp5_cstate->pipeline, 0, true);
+		} else {
+			mdp5_ctl_set_cursor(mdp5_cstate->ctl,
+					    &mdp5_cstate->pipeline, 0, false);
+		}
+	}
+
+	/* Restore vblank irq handling after power is enabled */
+	drm_crtc_vblank_on(crtc);
+
+	mdp5_crtc_mode_set_nofb(crtc);
+
+	mdp_irq_register(&mdp5_kms->base, &mdp5_crtc->err);
+
+	if (mdp5_cstate->cmd_mode)
+		mdp_irq_register(&mdp5_kms->base, &mdp5_crtc->pp_done);
+
+	mdp5_crtc->enabled = true;
+}
+
+int mdp5_crtc_setup_pipeline(struct drm_crtc *crtc,
+			     struct drm_crtc_state *new_crtc_state,
+			     bool need_right_mixer)
+{
+	struct mdp5_crtc_state *mdp5_cstate =
+			to_mdp5_crtc_state(new_crtc_state);
+	struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline;
+	struct mdp5_interface *intf;
+	bool new_mixer = false;
+
+	new_mixer = !pipeline->mixer;
+
+	if ((need_right_mixer && !pipeline->r_mixer) ||
+	    (!need_right_mixer && pipeline->r_mixer))
+		new_mixer = true;
+
+	if (new_mixer) {
+		struct mdp5_hw_mixer *old_mixer = pipeline->mixer;
+		struct mdp5_hw_mixer *old_r_mixer = pipeline->r_mixer;
+		u32 caps;
+		int ret;
+
+		caps = MDP_LM_CAP_DISPLAY;
+		if (need_right_mixer)
+			caps |= MDP_LM_CAP_PAIR;
+
+		ret = mdp5_mixer_assign(new_crtc_state->state, crtc, caps,
+					&pipeline->mixer, need_right_mixer ?
+					&pipeline->r_mixer : NULL);
+		if (ret)
+			return ret;
+
+		mdp5_mixer_release(new_crtc_state->state, old_mixer);
+		if (old_r_mixer) {
+			mdp5_mixer_release(new_crtc_state->state, old_r_mixer);
+			if (!need_right_mixer)
+				pipeline->r_mixer = NULL;
+		}
+	}
+
+	/*
+	 * these should have been already set up in the encoder's atomic
+	 * check (called by drm_atomic_helper_check_modeset)
+	 */
+	intf = pipeline->intf;
+
+	mdp5_cstate->err_irqmask = intf2err(intf->num);
+	mdp5_cstate->vblank_irqmask = intf2vblank(pipeline->mixer, intf);
+
+	if ((intf->type == INTF_DSI) &&
+	    (intf->mode == MDP5_INTF_DSI_MODE_COMMAND)) {
+		mdp5_cstate->pp_done_irqmask = lm2ppdone(pipeline->mixer);
+		mdp5_cstate->cmd_mode = true;
+	} else {
+		mdp5_cstate->pp_done_irqmask = 0;
+		mdp5_cstate->cmd_mode = false;
+	}
+
+	return 0;
+}
+
+struct plane_state {
+	struct drm_plane *plane;
+	struct mdp5_plane_state *state;
+};
+
+static int pstate_cmp(const void *a, const void *b)
+{
+	struct plane_state *pa = (struct plane_state *)a;
+	struct plane_state *pb = (struct plane_state *)b;
+	return pa->state->zpos - pb->state->zpos;
+}
+
+/* is there a helper for this? */
+static bool is_fullscreen(struct drm_crtc_state *cstate,
+		struct drm_plane_state *pstate)
+{
+	return (pstate->crtc_x <= 0) && (pstate->crtc_y <= 0) &&
+		((pstate->crtc_x + pstate->crtc_w) >= cstate->mode.hdisplay) &&
+		((pstate->crtc_y + pstate->crtc_h) >= cstate->mode.vdisplay);
+}
+
+static enum mdp_mixer_stage_id get_start_stage(struct drm_crtc *crtc,
+					struct drm_crtc_state *new_crtc_state,
+					struct drm_plane_state *bpstate)
+{
+	struct mdp5_crtc_state *mdp5_cstate =
+			to_mdp5_crtc_state(new_crtc_state);
+
+	/*
+	 * if we're in source split mode, it's mandatory to have
+	 * border out on the base stage
+	 */
+	if (mdp5_cstate->pipeline.r_mixer)
+		return STAGE0;
+
+	/* if the bottom-most layer is not fullscreen, we need to use
+	 * it for solid-color:
+	 */
+	if (!is_fullscreen(new_crtc_state, bpstate))
+		return STAGE0;
+
+	return STAGE_BASE;
+}
+
+static int mdp5_crtc_atomic_check(struct drm_crtc *crtc,
+		struct drm_crtc_state *state)
+{
+	struct mdp5_kms *mdp5_kms = get_kms(crtc);
+	struct drm_plane *plane;
+	struct drm_device *dev = crtc->dev;
+	struct plane_state pstates[STAGE_MAX + 1];
+	const struct mdp5_cfg_hw *hw_cfg;
+	const struct drm_plane_state *pstate;
+	const struct drm_display_mode *mode = &state->adjusted_mode;
+	bool cursor_plane = false;
+	bool need_right_mixer = false;
+	int cnt = 0, i;
+	int ret;
+	enum mdp_mixer_stage_id start;
+
+	DBG("%s: check", crtc->name);
+
+	drm_atomic_crtc_state_for_each_plane_state(plane, pstate, state) {
+		if (!pstate->visible)
+			continue;
+
+		pstates[cnt].plane = plane;
+		pstates[cnt].state = to_mdp5_plane_state(pstate);
+
+		/*
+		 * if any plane on this crtc uses 2 hwpipes, then we need
+		 * the crtc to have a right hwmixer.
+		 */
+		if (pstates[cnt].state->r_hwpipe)
+			need_right_mixer = true;
+		cnt++;
+
+		if (plane->type == DRM_PLANE_TYPE_CURSOR)
+			cursor_plane = true;
+	}
+
+	/* bail out early if there aren't any planes */
+	if (!cnt)
+		return 0;
+
+	hw_cfg = mdp5_cfg_get_hw_config(mdp5_kms->cfg);
+
+	/*
+	 * we need a right hwmixer if the mode's width is greater than a single
+	 * LM's max width
+	 */
+	if (mode->hdisplay > hw_cfg->lm.max_width)
+		need_right_mixer = true;
+
+	ret = mdp5_crtc_setup_pipeline(crtc, state, need_right_mixer);
+	if (ret) {
+		dev_err(dev->dev, "couldn't assign mixers %d\n", ret);
+		return ret;
+	}
+
+	/* assign a stage based on sorted zpos property */
+	sort(pstates, cnt, sizeof(pstates[0]), pstate_cmp, NULL);
+
+	/* trigger a warning if cursor isn't the highest zorder */
+	WARN_ON(cursor_plane &&
+		(pstates[cnt - 1].plane->type != DRM_PLANE_TYPE_CURSOR));
+
+	start = get_start_stage(crtc, state, &pstates[0].state->base);
+
+	/* verify that there are not too many planes attached to crtc
+	 * and that we don't have conflicting mixer stages:
+	 */
+	if ((cnt + start - 1) >= hw_cfg->lm.nb_stages) {
+		dev_err(dev->dev, "too many planes! cnt=%d, start stage=%d\n",
+			cnt, start);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < cnt; i++) {
+		if (cursor_plane && (i == (cnt - 1)))
+			pstates[i].state->stage = hw_cfg->lm.nb_stages;
+		else
+			pstates[i].state->stage = start + i;
+		DBG("%s: assign pipe %s on stage=%d", crtc->name,
+				pstates[i].plane->name,
+				pstates[i].state->stage);
+	}
+
+	return 0;
+}
+
+static void mdp5_crtc_atomic_begin(struct drm_crtc *crtc,
+				   struct drm_crtc_state *old_crtc_state)
+{
+	DBG("%s: begin", crtc->name);
+}
+
+static void mdp5_crtc_atomic_flush(struct drm_crtc *crtc,
+				   struct drm_crtc_state *old_crtc_state)
+{
+	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+	struct drm_device *dev = crtc->dev;
+	unsigned long flags;
+
+	DBG("%s: event: %p", crtc->name, crtc->state->event);
+
+	WARN_ON(mdp5_crtc->event);
+
+	spin_lock_irqsave(&dev->event_lock, flags);
+	mdp5_crtc->event = crtc->state->event;
+	spin_unlock_irqrestore(&dev->event_lock, flags);
+
+	/*
+	 * If no CTL has been allocated in mdp5_crtc_atomic_check(),
+	 * it means we are trying to flush a CRTC whose state is disabled:
+	 * nothing else needs to be done.
+	 */
+	/* XXX: Can this happen now ? */
+	if (unlikely(!mdp5_cstate->ctl))
+		return;
+
+	blend_setup(crtc);
+
+	/* PP_DONE irq is only used by command mode for now.
+	 * It is better to request pending before FLUSH and START trigger
+	 * to make sure no pp_done irq missed.
+	 * This is safe because no pp_done will happen before SW trigger
+	 * in command mode.
+	 */
+	if (mdp5_cstate->cmd_mode)
+		request_pp_done_pending(crtc);
+
+	mdp5_crtc->flushed_mask = crtc_flush_all(crtc);
+
+	/* XXX are we leaking out state here? */
+	mdp5_crtc->vblank.irqmask = mdp5_cstate->vblank_irqmask;
+	mdp5_crtc->err.irqmask = mdp5_cstate->err_irqmask;
+	mdp5_crtc->pp_done.irqmask = mdp5_cstate->pp_done_irqmask;
+
+	request_pending(crtc, PENDING_FLIP);
+}
+
+static void get_roi(struct drm_crtc *crtc, uint32_t *roi_w, uint32_t *roi_h)
+{
+	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+	uint32_t xres = crtc->mode.hdisplay;
+	uint32_t yres = crtc->mode.vdisplay;
+
+	/*
+	 * Cursor Region Of Interest (ROI) is a plane read from cursor
+	 * buffer to render. The ROI region is determined by the visibility of
+	 * the cursor point. In the default Cursor image the cursor point will
+	 * be at the top left of the cursor image, unless it is specified
+	 * otherwise using hotspot feature.
+	 *
+	 * If the cursor point reaches the right (xres - x < cursor.width) or
+	 * bottom (yres - y < cursor.height) boundary of the screen, then ROI
+	 * width and ROI height need to be evaluated to crop the cursor image
+	 * accordingly.
+	 * (xres-x) will be new cursor width when x > (xres - cursor.width)
+	 * (yres-y) will be new cursor height when y > (yres - cursor.height)
+	 */
+	*roi_w = min(mdp5_crtc->cursor.width, xres -
+			mdp5_crtc->cursor.x);
+	*roi_h = min(mdp5_crtc->cursor.height, yres -
+			mdp5_crtc->cursor.y);
+}
+
+static void mdp5_crtc_restore_cursor(struct drm_crtc *crtc)
+{
+	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+	struct mdp5_kms *mdp5_kms = get_kms(crtc);
+	const enum mdp5_cursor_alpha cur_alpha = CURSOR_ALPHA_PER_PIXEL;
+	uint32_t blendcfg, stride;
+	uint32_t x, y, width, height;
+	uint32_t roi_w, roi_h;
+	int lm;
+
+	assert_spin_locked(&mdp5_crtc->cursor.lock);
+
+	lm = mdp5_cstate->pipeline.mixer->lm;
+
+	x = mdp5_crtc->cursor.x;
+	y = mdp5_crtc->cursor.y;
+	width = mdp5_crtc->cursor.width;
+	height = mdp5_crtc->cursor.height;
+
+	stride = width * drm_format_plane_cpp(DRM_FORMAT_ARGB8888, 0);
+
+	get_roi(crtc, &roi_w, &roi_h);
+
+	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_STRIDE(lm), stride);
+	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_FORMAT(lm),
+			MDP5_LM_CURSOR_FORMAT_FORMAT(CURSOR_FMT_ARGB8888));
+	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_IMG_SIZE(lm),
+			MDP5_LM_CURSOR_IMG_SIZE_SRC_H(height) |
+			MDP5_LM_CURSOR_IMG_SIZE_SRC_W(width));
+	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_SIZE(lm),
+			MDP5_LM_CURSOR_SIZE_ROI_H(roi_h) |
+			MDP5_LM_CURSOR_SIZE_ROI_W(roi_w));
+	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_START_XY(lm),
+			MDP5_LM_CURSOR_START_XY_Y_START(y) |
+			MDP5_LM_CURSOR_START_XY_X_START(x));
+	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_BASE_ADDR(lm),
+			mdp5_crtc->cursor.iova);
+
+	blendcfg = MDP5_LM_CURSOR_BLEND_CONFIG_BLEND_EN;
+	blendcfg |= MDP5_LM_CURSOR_BLEND_CONFIG_BLEND_ALPHA_SEL(cur_alpha);
+	mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_BLEND_CONFIG(lm), blendcfg);
+}
+
+static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
+		struct drm_file *file, uint32_t handle,
+		uint32_t width, uint32_t height)
+{
+	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+	struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline;
+	struct drm_device *dev = crtc->dev;
+	struct mdp5_kms *mdp5_kms = get_kms(crtc);
+	struct platform_device *pdev = mdp5_kms->pdev;
+	struct msm_kms *kms = &mdp5_kms->base.base;
+	struct drm_gem_object *cursor_bo, *old_bo = NULL;
+	struct mdp5_ctl *ctl;
+	int ret;
+	uint32_t flush_mask = mdp_ctl_flush_mask_cursor(0);
+	bool cursor_enable = true;
+	unsigned long flags;
+
+	if (!mdp5_crtc->lm_cursor_enabled) {
+		dev_warn(dev->dev,
+			 "cursor_set is deprecated with cursor planes\n");
+		return -EINVAL;
+	}
+
+	if ((width > CURSOR_WIDTH) || (height > CURSOR_HEIGHT)) {
+		dev_err(dev->dev, "bad cursor size: %dx%d\n", width, height);
+		return -EINVAL;
+	}
+
+	ctl = mdp5_cstate->ctl;
+	if (!ctl)
+		return -EINVAL;
+
+	/* don't support LM cursors when we we have source split enabled */
+	if (mdp5_cstate->pipeline.r_mixer)
+		return -EINVAL;
+
+	if (!handle) {
+		DBG("Cursor off");
+		cursor_enable = false;
+		mdp5_crtc->cursor.iova = 0;
+		pm_runtime_get_sync(&pdev->dev);
+		goto set_cursor;
+	}
+
+	cursor_bo = drm_gem_object_lookup(file, handle);
+	if (!cursor_bo)
+		return -ENOENT;
+
+	ret = msm_gem_get_iova(cursor_bo, kms->aspace,
+			&mdp5_crtc->cursor.iova);
+	if (ret)
+		return -EINVAL;
+
+	pm_runtime_get_sync(&pdev->dev);
+
+	spin_lock_irqsave(&mdp5_crtc->cursor.lock, flags);
+	old_bo = mdp5_crtc->cursor.scanout_bo;
+
+	mdp5_crtc->cursor.scanout_bo = cursor_bo;
+	mdp5_crtc->cursor.width = width;
+	mdp5_crtc->cursor.height = height;
+
+	mdp5_crtc_restore_cursor(crtc);
+
+	spin_unlock_irqrestore(&mdp5_crtc->cursor.lock, flags);
+
+set_cursor:
+	ret = mdp5_ctl_set_cursor(ctl, pipeline, 0, cursor_enable);
+	if (ret) {
+		dev_err(dev->dev, "failed to %sable cursor: %d\n",
+				cursor_enable ? "en" : "dis", ret);
+		goto end;
+	}
+
+	crtc_flush(crtc, flush_mask);
+
+end:
+	pm_runtime_put_sync(&pdev->dev);
+	if (old_bo) {
+		drm_flip_work_queue(&mdp5_crtc->unref_cursor_work, old_bo);
+		/* enable vblank to complete cursor work: */
+		request_pending(crtc, PENDING_CURSOR);
+	}
+	return ret;
+}
+
+static int mdp5_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
+{
+	struct mdp5_kms *mdp5_kms = get_kms(crtc);
+	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+	uint32_t flush_mask = mdp_ctl_flush_mask_cursor(0);
+	struct drm_device *dev = crtc->dev;
+	uint32_t roi_w;
+	uint32_t roi_h;
+	unsigned long flags;
+
+	if (!mdp5_crtc->lm_cursor_enabled) {
+		dev_warn(dev->dev,
+			 "cursor_move is deprecated with cursor planes\n");
+		return -EINVAL;
+	}
+
+	/* don't support LM cursors when we we have source split enabled */
+	if (mdp5_cstate->pipeline.r_mixer)
+		return -EINVAL;
+
+	/* In case the CRTC is disabled, just drop the cursor update */
+	if (unlikely(!crtc->state->enable))
+		return 0;
+
+	mdp5_crtc->cursor.x = x = max(x, 0);
+	mdp5_crtc->cursor.y = y = max(y, 0);
+
+	get_roi(crtc, &roi_w, &roi_h);
+
+	pm_runtime_get_sync(&mdp5_kms->pdev->dev);
+
+	spin_lock_irqsave(&mdp5_crtc->cursor.lock, flags);
+	mdp5_crtc_restore_cursor(crtc);
+	spin_unlock_irqrestore(&mdp5_crtc->cursor.lock, flags);
+
+	crtc_flush(crtc, flush_mask);
+
+	pm_runtime_put_sync(&mdp5_kms->pdev->dev);
+
+	return 0;
+}
+
+static void
+mdp5_crtc_atomic_print_state(struct drm_printer *p,
+			     const struct drm_crtc_state *state)
+{
+	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(state);
+	struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline;
+	struct mdp5_kms *mdp5_kms = get_kms(state->crtc);
+
+	if (WARN_ON(!pipeline))
+		return;
+
+	drm_printf(p, "\thwmixer=%s\n", pipeline->mixer ?
+			pipeline->mixer->name : "(null)");
+
+	if (mdp5_kms->caps & MDP_CAP_SRC_SPLIT)
+		drm_printf(p, "\tright hwmixer=%s\n", pipeline->r_mixer ?
+			   pipeline->r_mixer->name : "(null)");
+}
+
+static void mdp5_crtc_reset(struct drm_crtc *crtc)
+{
+	struct mdp5_crtc_state *mdp5_cstate;
+
+	if (crtc->state) {
+		__drm_atomic_helper_crtc_destroy_state(crtc->state);
+		kfree(to_mdp5_crtc_state(crtc->state));
+	}
+
+	mdp5_cstate = kzalloc(sizeof(*mdp5_cstate), GFP_KERNEL);
+
+	if (mdp5_cstate) {
+		mdp5_cstate->base.crtc = crtc;
+		crtc->state = &mdp5_cstate->base;
+	}
+}
+
+static struct drm_crtc_state *
+mdp5_crtc_duplicate_state(struct drm_crtc *crtc)
+{
+	struct mdp5_crtc_state *mdp5_cstate;
+
+	if (WARN_ON(!crtc->state))
+		return NULL;
+
+	mdp5_cstate = kmemdup(to_mdp5_crtc_state(crtc->state),
+			      sizeof(*mdp5_cstate), GFP_KERNEL);
+	if (!mdp5_cstate)
+		return NULL;
+
+	__drm_atomic_helper_crtc_duplicate_state(crtc, &mdp5_cstate->base);
+
+	return &mdp5_cstate->base;
+}
+
+static void mdp5_crtc_destroy_state(struct drm_crtc *crtc, struct drm_crtc_state *state)
+{
+	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(state);
+
+	__drm_atomic_helper_crtc_destroy_state(state);
+
+	kfree(mdp5_cstate);
+}
+
+static const struct drm_crtc_funcs mdp5_crtc_funcs = {
+	.set_config = drm_atomic_helper_set_config,
+	.destroy = mdp5_crtc_destroy,
+	.page_flip = drm_atomic_helper_page_flip,
+	.reset = mdp5_crtc_reset,
+	.atomic_duplicate_state = mdp5_crtc_duplicate_state,
+	.atomic_destroy_state = mdp5_crtc_destroy_state,
+	.cursor_set = mdp5_crtc_cursor_set,
+	.cursor_move = mdp5_crtc_cursor_move,
+	.atomic_print_state = mdp5_crtc_atomic_print_state,
+};
+
+static const struct drm_crtc_helper_funcs mdp5_crtc_helper_funcs = {
+	.mode_set_nofb = mdp5_crtc_mode_set_nofb,
+	.atomic_check = mdp5_crtc_atomic_check,
+	.atomic_begin = mdp5_crtc_atomic_begin,
+	.atomic_flush = mdp5_crtc_atomic_flush,
+	.atomic_enable = mdp5_crtc_atomic_enable,
+	.atomic_disable = mdp5_crtc_atomic_disable,
+};
+
+static void mdp5_crtc_vblank_irq(struct mdp_irq *irq, uint32_t irqstatus)
+{
+	struct mdp5_crtc *mdp5_crtc = container_of(irq, struct mdp5_crtc, vblank);
+	struct drm_crtc *crtc = &mdp5_crtc->base;
+	struct msm_drm_private *priv = crtc->dev->dev_private;
+	unsigned pending;
+
+	mdp_irq_unregister(&get_kms(crtc)->base, &mdp5_crtc->vblank);
+
+	pending = atomic_xchg(&mdp5_crtc->pending, 0);
+
+	if (pending & PENDING_FLIP) {
+		complete_flip(crtc, NULL);
+	}
+
+	if (pending & PENDING_CURSOR)
+		drm_flip_work_commit(&mdp5_crtc->unref_cursor_work, priv->wq);
+}
+
+static void mdp5_crtc_err_irq(struct mdp_irq *irq, uint32_t irqstatus)
+{
+	struct mdp5_crtc *mdp5_crtc = container_of(irq, struct mdp5_crtc, err);
+
+	DBG("%s: error: %08x", mdp5_crtc->base.name, irqstatus);
+}
+
+static void mdp5_crtc_pp_done_irq(struct mdp_irq *irq, uint32_t irqstatus)
+{
+	struct mdp5_crtc *mdp5_crtc = container_of(irq, struct mdp5_crtc,
+								pp_done);
+
+	complete(&mdp5_crtc->pp_completion);
+}
+
+static void mdp5_crtc_wait_for_pp_done(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+	int ret;
+
+	ret = wait_for_completion_timeout(&mdp5_crtc->pp_completion,
+						msecs_to_jiffies(50));
+	if (ret == 0)
+		dev_warn(dev->dev, "pp done time out, lm=%d\n",
+			 mdp5_cstate->pipeline.mixer->lm);
+}
+
+static void mdp5_crtc_wait_for_flush_done(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+	struct mdp5_ctl *ctl = mdp5_cstate->ctl;
+	int ret;
+
+	/* Should not call this function if crtc is disabled. */
+	if (!ctl)
+		return;
+
+	ret = drm_crtc_vblank_get(crtc);
+	if (ret)
+		return;
+
+	ret = wait_event_timeout(dev->vblank[drm_crtc_index(crtc)].queue,
+		((mdp5_ctl_get_commit_status(ctl) &
+		mdp5_crtc->flushed_mask) == 0),
+		msecs_to_jiffies(50));
+	if (ret <= 0)
+		dev_warn(dev->dev, "vblank time out, crtc=%d\n", mdp5_crtc->id);
+
+	mdp5_crtc->flushed_mask = 0;
+
+	drm_crtc_vblank_put(crtc);
+}
+
+uint32_t mdp5_crtc_vblank(struct drm_crtc *crtc)
+{
+	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+	return mdp5_crtc->vblank.irqmask;
+}
+
+void mdp5_crtc_set_pipeline(struct drm_crtc *crtc)
+{
+	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+	struct mdp5_kms *mdp5_kms = get_kms(crtc);
+
+	/* should this be done elsewhere ? */
+	mdp_irq_update(&mdp5_kms->base);
+
+	mdp5_ctl_set_pipeline(mdp5_cstate->ctl, &mdp5_cstate->pipeline);
+}
+
+struct mdp5_ctl *mdp5_crtc_get_ctl(struct drm_crtc *crtc)
+{
+	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+
+	return mdp5_cstate->ctl;
+}
+
+struct mdp5_hw_mixer *mdp5_crtc_get_mixer(struct drm_crtc *crtc)
+{
+	struct mdp5_crtc_state *mdp5_cstate;
+
+	if (WARN_ON(!crtc))
+		return ERR_PTR(-EINVAL);
+
+	mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+
+	return WARN_ON(!mdp5_cstate->pipeline.mixer) ?
+		ERR_PTR(-EINVAL) : mdp5_cstate->pipeline.mixer;
+}
+
+struct mdp5_pipeline *mdp5_crtc_get_pipeline(struct drm_crtc *crtc)
+{
+	struct mdp5_crtc_state *mdp5_cstate;
+
+	if (WARN_ON(!crtc))
+		return ERR_PTR(-EINVAL);
+
+	mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+
+	return &mdp5_cstate->pipeline;
+}
+
+void mdp5_crtc_wait_for_commit_done(struct drm_crtc *crtc)
+{
+	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+
+	if (mdp5_cstate->cmd_mode)
+		mdp5_crtc_wait_for_pp_done(crtc);
+	else
+		mdp5_crtc_wait_for_flush_done(crtc);
+}
+
+/* initialize crtc */
+struct drm_crtc *mdp5_crtc_init(struct drm_device *dev,
+				struct drm_plane *plane,
+				struct drm_plane *cursor_plane, int id)
+{
+	struct drm_crtc *crtc = NULL;
+	struct mdp5_crtc *mdp5_crtc;
+
+	mdp5_crtc = kzalloc(sizeof(*mdp5_crtc), GFP_KERNEL);
+	if (!mdp5_crtc)
+		return ERR_PTR(-ENOMEM);
+
+	crtc = &mdp5_crtc->base;
+
+	mdp5_crtc->id = id;
+
+	spin_lock_init(&mdp5_crtc->lm_lock);
+	spin_lock_init(&mdp5_crtc->cursor.lock);
+	init_completion(&mdp5_crtc->pp_completion);
+
+	mdp5_crtc->vblank.irq = mdp5_crtc_vblank_irq;
+	mdp5_crtc->err.irq = mdp5_crtc_err_irq;
+	mdp5_crtc->pp_done.irq = mdp5_crtc_pp_done_irq;
+
+	mdp5_crtc->lm_cursor_enabled = cursor_plane ? false : true;
+
+	drm_crtc_init_with_planes(dev, crtc, plane, cursor_plane,
+				  &mdp5_crtc_funcs, NULL);
+
+	drm_flip_work_init(&mdp5_crtc->unref_cursor_work,
+			"unref cursor", unref_cursor_worker);
+
+	drm_crtc_helper_add(crtc, &mdp5_crtc_helper_funcs);
+	plane->crtc = crtc;
+
+	return crtc;
+}