Merge drm/drm-next into drm-misc-next

We haven't done any backmerge for a while due to the merge window, and it
starts to become an issue for komeda. Let's bring 5.4-rc1 in.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

17 files changed, 201 insertions, 234 deletions

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
index 5cda96875e03..09a49b59bb5b 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c
@@ -214,7 +214,6 @@ static int _dpu_core_perf_crtc_update_bus(struct dpu_kms *kms,
  */
 void dpu_core_perf_crtc_release_bw(struct drm_crtc *crtc)
 {
-	struct drm_crtc *tmp_crtc;
 	struct dpu_crtc *dpu_crtc;
 	struct dpu_crtc_state *dpu_cstate;
 	struct dpu_kms *kms;
@@ -233,22 +232,9 @@ void dpu_core_perf_crtc_release_bw(struct drm_crtc *crtc)
 	dpu_crtc = to_dpu_crtc(crtc);
 	dpu_cstate = to_dpu_crtc_state(crtc->state);
 
-	/* only do this for command mode rt client */
-	if (dpu_crtc_get_intf_mode(crtc) != INTF_MODE_CMD)
+	if (atomic_dec_return(&kms->bandwidth_ref) > 0)
 		return;
 
-	/*
-	 * If video interface present, cmd panel bandwidth cannot be
-	 * released.
-	 */
-	if (dpu_crtc_get_intf_mode(crtc) == INTF_MODE_CMD)
-		drm_for_each_crtc(tmp_crtc, crtc->dev) {
-			if (tmp_crtc->enabled &&
-				dpu_crtc_get_intf_mode(tmp_crtc) ==
-						INTF_MODE_VIDEO)
-				return;
-		}
-
 	/* Release the bandwidth */
 	if (kms->perf.enable_bw_release) {
 		trace_dpu_cmd_release_bw(crtc->base.id);
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index b3417d56032d..ce59adff06aa 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -9,11 +9,13 @@
 #include <linux/sort.h>
 #include <linux/debugfs.h>
 #include <linux/ktime.h>
+
 #include <drm/drm_crtc.h>
 #include <drm/drm_flip_work.h>
 #include <drm/drm_mode.h>
 #include <drm/drm_probe_helper.h>
 #include <drm/drm_rect.h>
+#include <drm/drm_vblank.h>
 
 #include "dpu_kms.h"
 #include "dpu_hw_lm.h"
@@ -292,19 +294,6 @@ void dpu_crtc_vblank_callback(struct drm_crtc *crtc)
 	trace_dpu_crtc_vblank_cb(DRMID(crtc));
 }
 
-static void dpu_crtc_release_bw_unlocked(struct drm_crtc *crtc)
-{
-	int ret = 0;
-	struct drm_modeset_acquire_ctx ctx;
-
-	DRM_MODESET_LOCK_ALL_BEGIN(crtc->dev, ctx, 0, ret);
-	dpu_core_perf_crtc_release_bw(crtc);
-	DRM_MODESET_LOCK_ALL_END(ctx, ret);
-	if (ret)
-		DRM_ERROR("Failed to acquire modeset locks to release bw, %d\n",
-			  ret);
-}
-
 static void dpu_crtc_frame_event_work(struct kthread_work *work)
 {
 	struct dpu_crtc_frame_event *fevent = container_of(work,
@@ -324,17 +313,12 @@ static void dpu_crtc_frame_event_work(struct kthread_work *work)
 				| DPU_ENCODER_FRAME_EVENT_PANEL_DEAD)) {
 
 		if (atomic_read(&dpu_crtc->frame_pending) < 1) {
-			/* this should not happen */
-			DRM_ERROR("crtc%d ev:%u ts:%lld frame_pending:%d\n",
-					crtc->base.id,
-					fevent->event,
-					ktime_to_ns(fevent->ts),
-					atomic_read(&dpu_crtc->frame_pending));
+			/* ignore vblank when not pending */
 		} else if (atomic_dec_return(&dpu_crtc->frame_pending) == 0) {
 			/* release bandwidth and other resources */
 			trace_dpu_crtc_frame_event_done(DRMID(crtc),
 							fevent->event);
-			dpu_crtc_release_bw_unlocked(crtc);
+			dpu_core_perf_crtc_release_bw(crtc);
 		} else {
 			trace_dpu_crtc_frame_event_more_pending(DRMID(crtc),
 								fevent->event);
@@ -407,13 +391,8 @@ static void dpu_crtc_frame_event_cb(void *data, u32 event)
 	kthread_queue_work(&priv->event_thread[crtc_id].worker, &fevent->work);
 }
 
-void dpu_crtc_complete_commit(struct drm_crtc *crtc,
-		struct drm_crtc_state *old_state)
+void dpu_crtc_complete_commit(struct drm_crtc *crtc)
 {
-	if (!crtc || !crtc->state) {
-		DPU_ERROR("invalid crtc\n");
-		return;
-	}
 	trace_dpu_crtc_complete_commit(DRMID(crtc));
 }
 
@@ -623,13 +602,12 @@ static int _dpu_crtc_wait_for_frame_done(struct drm_crtc *crtc)
 	return rc;
 }
 
-void dpu_crtc_commit_kickoff(struct drm_crtc *crtc, bool async)
+void dpu_crtc_commit_kickoff(struct drm_crtc *crtc)
 {
 	struct drm_encoder *encoder;
 	struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
 	struct dpu_kms *dpu_kms = _dpu_crtc_get_kms(crtc);
 	struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc->state);
-	int ret;
 
 	/*
 	 * If no mixers has been allocated in dpu_crtc_atomic_check(),
@@ -647,37 +625,22 @@ void dpu_crtc_commit_kickoff(struct drm_crtc *crtc, bool async)
 	 */
 	drm_for_each_encoder_mask(encoder, crtc->dev,
 				  crtc->state->encoder_mask)
-		dpu_encoder_prepare_for_kickoff(encoder, async);
-
-	if (!async) {
-		/* wait for frame_event_done completion */
-		DPU_ATRACE_BEGIN("wait_for_frame_done_event");
-		ret = _dpu_crtc_wait_for_frame_done(crtc);
-		DPU_ATRACE_END("wait_for_frame_done_event");
-		if (ret) {
-			DPU_ERROR("crtc%d wait for frame done failed;frame_pending%d\n",
-					crtc->base.id,
-					atomic_read(&dpu_crtc->frame_pending));
-			goto end;
-		}
+		dpu_encoder_prepare_for_kickoff(encoder);
 
-		if (atomic_inc_return(&dpu_crtc->frame_pending) == 1) {
-			/* acquire bandwidth and other resources */
-			DPU_DEBUG("crtc%d first commit\n", crtc->base.id);
-		} else
-			DPU_DEBUG("crtc%d commit\n", crtc->base.id);
+	if (atomic_inc_return(&dpu_crtc->frame_pending) == 1) {
+		/* acquire bandwidth and other resources */
+		DPU_DEBUG("crtc%d first commit\n", crtc->base.id);
+	} else
+		DPU_DEBUG("crtc%d commit\n", crtc->base.id);
 
-		dpu_crtc->play_count++;
-	}
+	dpu_crtc->play_count++;
 
 	dpu_vbif_clear_errors(dpu_kms);
 
 	drm_for_each_encoder_mask(encoder, crtc->dev, crtc->state->encoder_mask)
-		dpu_encoder_kickoff(encoder, async);
+		dpu_encoder_kickoff(encoder);
 
-end:
-	if (!async)
-		reinit_completion(&dpu_crtc->frame_done_comp);
+	reinit_completion(&dpu_crtc->frame_done_comp);
 	DPU_ATRACE_END("crtc_commit");
 }
 
@@ -729,6 +692,7 @@ static void dpu_crtc_disable(struct drm_crtc *crtc,
 	struct drm_encoder *encoder;
 	struct msm_drm_private *priv;
 	unsigned long flags;
+	bool release_bandwidth = false;
 
 	if (!crtc || !crtc->dev || !crtc->dev->dev_private || !crtc->state) {
 		DPU_ERROR("invalid crtc\n");
@@ -745,8 +709,15 @@ static void dpu_crtc_disable(struct drm_crtc *crtc,
 	drm_crtc_vblank_off(crtc);
 
 	drm_for_each_encoder_mask(encoder, crtc->dev,
-				  old_crtc_state->encoder_mask)
+				  old_crtc_state->encoder_mask) {
+		/* in video mode, we hold an extra bandwidth reference
+		 * as we cannot drop bandwidth at frame-done if any
+		 * crtc is being used in video mode.
+		 */
+		if (dpu_encoder_get_intf_mode(encoder) == INTF_MODE_VIDEO)
+			release_bandwidth = true;
 		dpu_encoder_assign_crtc(encoder, NULL);
+	}
 
 	/* wait for frame_event_done completion */
 	if (_dpu_crtc_wait_for_frame_done(crtc))
@@ -760,7 +731,8 @@ static void dpu_crtc_disable(struct drm_crtc *crtc,
 	if (atomic_read(&dpu_crtc->frame_pending)) {
 		trace_dpu_crtc_disable_frame_pending(DRMID(crtc),
 				     atomic_read(&dpu_crtc->frame_pending));
-		dpu_core_perf_crtc_release_bw(crtc);
+		if (release_bandwidth)
+			dpu_core_perf_crtc_release_bw(crtc);
 		atomic_set(&dpu_crtc->frame_pending, 0);
 	}
 
@@ -792,6 +764,7 @@ static void dpu_crtc_enable(struct drm_crtc *crtc,
 	struct dpu_crtc *dpu_crtc;
 	struct drm_encoder *encoder;
 	struct msm_drm_private *priv;
+	bool request_bandwidth;
 
 	if (!crtc || !crtc->dev || !crtc->dev->dev_private) {
 		DPU_ERROR("invalid crtc\n");
@@ -804,9 +777,19 @@ static void dpu_crtc_enable(struct drm_crtc *crtc,
 	DRM_DEBUG_KMS("crtc%d\n", crtc->base.id);
 	dpu_crtc = to_dpu_crtc(crtc);
 
-	drm_for_each_encoder_mask(encoder, crtc->dev, crtc->state->encoder_mask)
+	drm_for_each_encoder_mask(encoder, crtc->dev, crtc->state->encoder_mask) {
+		/* in video mode, we hold an extra bandwidth reference
+		 * as we cannot drop bandwidth at frame-done if any
+		 * crtc is being used in video mode.
+		 */
+		if (dpu_encoder_get_intf_mode(encoder) == INTF_MODE_VIDEO)
+			request_bandwidth = true;
 		dpu_encoder_register_frame_event_callback(encoder,
 				dpu_crtc_frame_event_cb, (void *)crtc);
+	}
+
+	if (request_bandwidth)
+		atomic_inc(&_dpu_crtc_get_kms(crtc)->bandwidth_ref);
 
 	trace_dpu_crtc_enable(DRMID(crtc), true, dpu_crtc);
 	dpu_crtc->enabled = true;
@@ -981,6 +964,8 @@ static int dpu_crtc_atomic_check(struct drm_crtc *crtc,
 		}
 	}
 
+	atomic_inc(&_dpu_crtc_get_kms(crtc)->bandwidth_ref);
+
 	rc = dpu_core_perf_crtc_check(crtc, state);
 	if (rc) {
 		DPU_ERROR("crtc%d failed performance check %d\n",
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
index 5181f079a6a1..5174e86124cc 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
@@ -238,17 +238,14 @@ void dpu_crtc_vblank_callback(struct drm_crtc *crtc);
 /**
  * dpu_crtc_commit_kickoff - trigger kickoff of the commit for this crtc
  * @crtc: Pointer to drm crtc object
- * @async: true if the commit is asynchronous, false otherwise
  */
-void dpu_crtc_commit_kickoff(struct drm_crtc *crtc, bool async);
+void dpu_crtc_commit_kickoff(struct drm_crtc *crtc);
 
 /**
  * dpu_crtc_complete_commit - callback signalling completion of current commit
  * @crtc: Pointer to drm crtc object
- * @old_state: Pointer to drm crtc old state object
  */
-void dpu_crtc_complete_commit(struct drm_crtc *crtc,
-		struct drm_crtc_state *old_state);
+void dpu_crtc_complete_commit(struct drm_crtc *crtc);
 
 /**
  * dpu_crtc_init - create a new crtc object
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 0e2f74163a16..d82ea994063f 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -6,14 +6,16 @@
  */
 
 #define pr_fmt(fmt)	"[drm:%s:%d] " fmt, __func__, __LINE__
-#include <linux/kthread.h>
 #include <linux/debugfs.h>
+#include <linux/kthread.h>
 #include <linux/seq_file.h>
 
-#include "msm_drv.h"
-#include "dpu_kms.h"
 #include <drm/drm_crtc.h>
+#include <drm/drm_file.h>
 #include <drm/drm_probe_helper.h>
+
+#include "msm_drv.h"
+#include "dpu_kms.h"
 #include "dpu_hwio.h"
 #include "dpu_hw_catalog.h"
 #include "dpu_hw_intf.h"
@@ -1421,19 +1423,12 @@ static void dpu_encoder_off_work(struct work_struct *work)
  * extra_flush_bits: Additional bit mask to include in flush trigger
  */
 static void _dpu_encoder_trigger_flush(struct drm_encoder *drm_enc,
-		struct dpu_encoder_phys *phys, uint32_t extra_flush_bits,
-		bool async)
+		struct dpu_encoder_phys *phys, uint32_t extra_flush_bits)
 {
 	struct dpu_hw_ctl *ctl;
 	int pending_kickoff_cnt;
 	u32 ret = UINT_MAX;
 
-	if (!drm_enc || !phys) {
-		DPU_ERROR("invalid argument(s), drm_enc %d, phys_enc %d\n",
-				drm_enc != 0, phys != 0);
-		return;
-	}
-
 	if (!phys->hw_pp) {
 		DPU_ERROR("invalid pingpong hw\n");
 		return;
@@ -1445,10 +1440,7 @@ static void _dpu_encoder_trigger_flush(struct drm_encoder *drm_enc,
 		return;
 	}
 
-	if (!async)
-		pending_kickoff_cnt = dpu_encoder_phys_inc_pending(phys);
-	else
-		pending_kickoff_cnt = atomic_read(&phys->pending_kickoff_cnt);
+	pending_kickoff_cnt = dpu_encoder_phys_inc_pending(phys);
 
 	if (extra_flush_bits && ctl->ops.update_pending_flush)
 		ctl->ops.update_pending_flush(ctl, extra_flush_bits);
@@ -1559,18 +1551,12 @@ static void dpu_encoder_helper_hw_reset(struct dpu_encoder_phys *phys_enc)
  *	a time.
  * dpu_enc: Pointer to virtual encoder structure
  */
-static void _dpu_encoder_kickoff_phys(struct dpu_encoder_virt *dpu_enc,
-				      bool async)
+static void _dpu_encoder_kickoff_phys(struct dpu_encoder_virt *dpu_enc)
 {
 	struct dpu_hw_ctl *ctl;
 	uint32_t i, pending_flush;
 	unsigned long lock_flags;
 
-	if (!dpu_enc) {
-		DPU_ERROR("invalid encoder\n");
-		return;
-	}
-
 	pending_flush = 0x0;
 
 	/* update pending counts and trigger kickoff ctl flush atomically */
@@ -1592,13 +1578,12 @@ static void _dpu_encoder_kickoff_phys(struct dpu_encoder_virt *dpu_enc,
 		 * for async commits. So don't set this for async, since it'll
 		 * roll over to the next commit.
 		 */
-		if (!async && phys->split_role != ENC_ROLE_SLAVE)
+		if (phys->split_role != ENC_ROLE_SLAVE)
 			set_bit(i, dpu_enc->frame_busy_mask);
 
 		if (!phys->ops.needs_single_flush ||
 				!phys->ops.needs_single_flush(phys))
-			_dpu_encoder_trigger_flush(&dpu_enc->base, phys, 0x0,
-						   async);
+			_dpu_encoder_trigger_flush(&dpu_enc->base, phys, 0x0);
 		else if (ctl->ops.get_pending_flush)
 			pending_flush |= ctl->ops.get_pending_flush(ctl);
 	}
@@ -1608,7 +1593,7 @@ static void _dpu_encoder_kickoff_phys(struct dpu_encoder_virt *dpu_enc,
 		_dpu_encoder_trigger_flush(
 				&dpu_enc->base,
 				dpu_enc->cur_master,
-				pending_flush, async);
+				pending_flush);
 	}
 
 	_dpu_encoder_trigger_start(dpu_enc->cur_master);
@@ -1695,8 +1680,7 @@ static u32 _dpu_encoder_calculate_linetime(struct dpu_encoder_virt *dpu_enc,
 	return line_time;
 }
 
-static int _dpu_encoder_wakeup_time(struct drm_encoder *drm_enc,
-		ktime_t *wakeup_time)
+int dpu_encoder_vsync_time(struct drm_encoder *drm_enc, ktime_t *wakeup_time)
 {
 	struct drm_display_mode *mode;
 	struct dpu_encoder_virt *dpu_enc;
@@ -1783,7 +1767,7 @@ static void dpu_encoder_vsync_event_work_handler(struct kthread_work *work)
 		return;
 	}
 
-	if (_dpu_encoder_wakeup_time(&dpu_enc->base, &wakeup_time))
+	if (dpu_encoder_vsync_time(&dpu_enc->base, &wakeup_time))
 		return;
 
 	trace_dpu_enc_vsync_event_work(DRMID(&dpu_enc->base), wakeup_time);
@@ -1791,17 +1775,13 @@ static void dpu_encoder_vsync_event_work_handler(struct kthread_work *work)
 			nsecs_to_jiffies(ktime_to_ns(wakeup_time)));
 }
 
-void dpu_encoder_prepare_for_kickoff(struct drm_encoder *drm_enc, bool async)
+void dpu_encoder_prepare_for_kickoff(struct drm_encoder *drm_enc)
 {
 	struct dpu_encoder_virt *dpu_enc;
 	struct dpu_encoder_phys *phys;
 	bool needs_hw_reset = false;
 	unsigned int i;
 
-	if (!drm_enc) {
-		DPU_ERROR("invalid args\n");
-		return;
-	}
 	dpu_enc = to_dpu_encoder_virt(drm_enc);
 
 	trace_dpu_enc_prepare_kickoff(DRMID(drm_enc));
@@ -1830,39 +1810,28 @@ void dpu_encoder_prepare_for_kickoff(struct drm_encoder *drm_enc, bool async)
 	}
 }
 
-void dpu_encoder_kickoff(struct drm_encoder *drm_enc, bool async)
+void dpu_encoder_kickoff(struct drm_encoder *drm_enc)
 {
 	struct dpu_encoder_virt *dpu_enc;
 	struct dpu_encoder_phys *phys;
 	ktime_t wakeup_time;
+	unsigned long timeout_ms;
 	unsigned int i;
 
-	if (!drm_enc) {
-		DPU_ERROR("invalid encoder\n");
-		return;
-	}
 	DPU_ATRACE_BEGIN("encoder_kickoff");
 	dpu_enc = to_dpu_encoder_virt(drm_enc);
 
 	trace_dpu_enc_kickoff(DRMID(drm_enc));
 
-	/*
-	 * Asynchronous frames don't handle FRAME_DONE events. As such, they
-	 * shouldn't enable the frame_done watchdog since it will always time
-	 * out.
-	 */
-	if (!async) {
-		unsigned long timeout_ms;
-		timeout_ms = DPU_ENCODER_FRAME_DONE_TIMEOUT_FRAMES * 1000 /
+	timeout_ms = DPU_ENCODER_FRAME_DONE_TIMEOUT_FRAMES * 1000 /
 			drm_mode_vrefresh(&drm_enc->crtc->state->adjusted_mode);
 
-		atomic_set(&dpu_enc->frame_done_timeout_ms, timeout_ms);
-		mod_timer(&dpu_enc->frame_done_timer,
-			  jiffies + msecs_to_jiffies(timeout_ms));
-	}
+	atomic_set(&dpu_enc->frame_done_timeout_ms, timeout_ms);
+	mod_timer(&dpu_enc->frame_done_timer,
+			jiffies + msecs_to_jiffies(timeout_ms));
 
 	/* All phys encs are ready to go, trigger the kickoff */
-	_dpu_encoder_kickoff_phys(dpu_enc, async);
+	_dpu_encoder_kickoff_phys(dpu_enc);
 
 	/* allow phys encs to handle any post-kickoff business */
 	for (i = 0; i < dpu_enc->num_phys_encs; i++) {
@@ -1872,7 +1841,7 @@ void dpu_encoder_kickoff(struct drm_encoder *drm_enc, bool async)
 	}
 
 	if (dpu_enc->disp_info.intf_type == DRM_MODE_ENCODER_DSI &&
-			!_dpu_encoder_wakeup_time(drm_enc, &wakeup_time)) {
+			!dpu_encoder_vsync_time(drm_enc, &wakeup_time)) {
 		trace_dpu_enc_early_kickoff(DRMID(drm_enc),
 					    ktime_to_ms(wakeup_time));
 		mod_timer(&dpu_enc->vsync_event_timer,
@@ -2221,8 +2190,6 @@ int dpu_encoder_setup(struct drm_device *dev, struct drm_encoder *enc,
 	if (ret)
 		goto fail;
 
-	spin_lock_init(&dpu_enc->enc_spinlock);
-
 	atomic_set(&dpu_enc->frame_done_timeout_ms, 0);
 	timer_setup(&dpu_enc->frame_done_timer,
 			dpu_encoder_frame_done_timeout, 0);
@@ -2276,6 +2243,7 @@ struct drm_encoder *dpu_encoder_init(struct drm_device *dev,
 
 	drm_encoder_helper_add(&dpu_enc->base, &dpu_encoder_helper_funcs);
 
+	spin_lock_init(&dpu_enc->enc_spinlock);
 	dpu_enc->enabled = false;
 
 	return &dpu_enc->base;
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
index a8bf1147fc56..b4913465e602 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
@@ -68,9 +68,8 @@ void dpu_encoder_register_frame_event_callback(struct drm_encoder *encoder,
  *	Immediately: if no previous commit is outstanding.
  *	Delayed: Block until next trigger can be issued.
  * @encoder:	encoder pointer
- * @async:	true if this is an asynchronous commit
  */
-void dpu_encoder_prepare_for_kickoff(struct drm_encoder *encoder,  bool async);
+void dpu_encoder_prepare_for_kickoff(struct drm_encoder *encoder);
 
 /**
  * dpu_encoder_trigger_kickoff_pending - Clear the flush bits from previous
@@ -83,9 +82,13 @@ void dpu_encoder_trigger_kickoff_pending(struct drm_encoder *encoder);
  * dpu_encoder_kickoff - trigger a double buffer flip of the ctl path
  *	(i.e. ctl flush and start) immediately.
  * @encoder:	encoder pointer
- * @async:	true if this is an asynchronous commit
  */
-void dpu_encoder_kickoff(struct drm_encoder *encoder, bool async);
+void dpu_encoder_kickoff(struct drm_encoder *encoder);
+
+/**
+ * dpu_encoder_wakeup_time - get the time of the next vsync
+ */
+int dpu_encoder_vsync_time(struct drm_encoder *drm_enc, ktime_t *wakeup_time);
 
 /**
  * dpu_encoder_wait_for_event - Waits for encoder events
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
index 1b3ab909f367..2923b63d95fe 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
@@ -720,9 +720,6 @@ static int dpu_encoder_phys_cmd_wait_for_vblank(
 static void dpu_encoder_phys_cmd_handle_post_kickoff(
 		struct dpu_encoder_phys *phys_enc)
 {
-	if (!phys_enc)
-		return;
-
 	/**
 	 * re-enable external TE, either for the first time after enabling
 	 * or if disabled for Autorefresh
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
index 5055a5eec869..b9c84fb4d4a1 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
@@ -324,6 +324,10 @@ static void dpu_encoder_phys_vid_vblank_irq(void *arg, int irq_idx)
 
 	/* Signal any waiting atomic commit thread */
 	wake_up_all(&phys_enc->pending_kickoff_wq);
+
+	phys_enc->parent_ops->handle_frame_done(phys_enc->parent, phys_enc,
+			DPU_ENCODER_FRAME_EVENT_DONE);
+
 	DPU_ATRACE_END("vblank_irq");
 }
 
@@ -483,8 +487,8 @@ static void dpu_encoder_phys_vid_get_hw_resources(
 	hw_res->intfs[phys_enc->intf_idx - INTF_0] = INTF_MODE_VIDEO;
 }
 
-static int _dpu_encoder_phys_vid_wait_for_vblank(
-		struct dpu_encoder_phys *phys_enc, bool notify)
+static int dpu_encoder_phys_vid_wait_for_vblank(
+		struct dpu_encoder_phys *phys_enc)
 {
 	struct dpu_encoder_wait_info wait_info;
 	int ret;
@@ -499,10 +503,6 @@ static int _dpu_encoder_phys_vid_wait_for_vblank(
 	wait_info.timeout_ms = KICKOFF_TIMEOUT_MS;
 
 	if (!dpu_encoder_phys_vid_is_master(phys_enc)) {
-		if (notify && phys_enc->parent_ops->handle_frame_done)
-			phys_enc->parent_ops->handle_frame_done(
-					phys_enc->parent, phys_enc,
-					DPU_ENCODER_FRAME_EVENT_DONE);
 		return 0;
 	}
 
@@ -512,18 +512,29 @@ static int _dpu_encoder_phys_vid_wait_for_vblank(
 
 	if (ret == -ETIMEDOUT) {
 		dpu_encoder_helper_report_irq_timeout(phys_enc, INTR_IDX_VSYNC);
-	} else if (!ret && notify && phys_enc->parent_ops->handle_frame_done)
-		phys_enc->parent_ops->handle_frame_done(
-				phys_enc->parent, phys_enc,
-				DPU_ENCODER_FRAME_EVENT_DONE);
+	}
 
 	return ret;
 }
 
-static int dpu_encoder_phys_vid_wait_for_vblank(
+static int dpu_encoder_phys_vid_wait_for_commit_done(
 		struct dpu_encoder_phys *phys_enc)
 {
-	return _dpu_encoder_phys_vid_wait_for_vblank(phys_enc, true);
+	struct dpu_hw_ctl *hw_ctl = phys_enc->hw_ctl;
+	int ret;
+
+	if (!hw_ctl)
+		return 0;
+
+	ret = wait_event_timeout(phys_enc->pending_kickoff_wq,
+		(hw_ctl->ops.get_flush_register(hw_ctl) == 0),
+		msecs_to_jiffies(50));
+	if (ret <= 0) {
+		DPU_ERROR("vblank timeout\n");
+		return -ETIMEDOUT;
+	}
+
+	return 0;
 }
 
 static void dpu_encoder_phys_vid_prepare_for_kickoff(
@@ -595,7 +606,7 @@ static void dpu_encoder_phys_vid_disable(struct dpu_encoder_phys *phys_enc)
 	 * scanout buffer) don't latch properly..
 	 */
 	if (dpu_encoder_phys_vid_is_master(phys_enc)) {
-		ret = _dpu_encoder_phys_vid_wait_for_vblank(phys_enc, false);
+		ret = dpu_encoder_phys_vid_wait_for_vblank(phys_enc);
 		if (ret) {
 			atomic_set(&phys_enc->pending_kickoff_cnt, 0);
 			DRM_ERROR("wait disable failed: id:%u intf:%d ret:%d\n",
@@ -612,11 +623,6 @@ static void dpu_encoder_phys_vid_handle_post_kickoff(
 {
 	unsigned long lock_flags;
 
-	if (!phys_enc) {
-		DPU_ERROR("invalid encoder\n");
-		return;
-	}
-
 	/*
 	 * Video mode must flush CTL before enabling timing engine
 	 * Video encoders need to turn on their interfaces now
@@ -681,7 +687,7 @@ static void dpu_encoder_phys_vid_init_ops(struct dpu_encoder_phys_ops *ops)
 	ops->destroy = dpu_encoder_phys_vid_destroy;
 	ops->get_hw_resources = dpu_encoder_phys_vid_get_hw_resources;
 	ops->control_vblank_irq = dpu_encoder_phys_vid_control_vblank_irq;
-	ops->wait_for_commit_done = dpu_encoder_phys_vid_wait_for_vblank;
+	ops->wait_for_commit_done = dpu_encoder_phys_vid_wait_for_commit_done;
 	ops->wait_for_vblank = dpu_encoder_phys_vid_wait_for_vblank;
 	ops->wait_for_tx_complete = dpu_encoder_phys_vid_wait_for_vblank;
 	ops->irq_control = dpu_encoder_phys_vid_irq_control;
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
index 90f439812088..ec76b8687a98 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
@@ -9,7 +9,6 @@
 #include <linux/bug.h>
 #include <linux/bitmap.h>
 #include <linux/err.h>
-#include <drm/drmP.h>
 
 /**
  * Max hardware block count: For ex: max 12 SSPP pipes or
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
index b2f7b0e886b5..179e8d52cadb 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
@@ -102,9 +102,6 @@ static inline void dpu_hw_ctl_update_pending_flush(struct dpu_hw_ctl *ctx,
 
 static u32 dpu_hw_ctl_get_pending_flush(struct dpu_hw_ctl *ctx)
 {
-	if (!ctx)
-		return 0x0;
-
 	return ctx->pending_flush_mask;
 }
 
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.c
index 71b6987bff1e..27fbeb504362 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.c
@@ -7,6 +7,7 @@
 #include <linux/clk/clk-conf.h>
 #include <linux/err.h>
 #include <linux/delay.h>
+#include <linux/of.h>
 
 #include <drm/drm_print.h>
 
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.h
index 09083e9f06bb..e6b5c772fa3b 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_io_util.h
@@ -5,7 +5,6 @@
 #ifndef __DPU_IO_UTIL_H__
 #define __DPU_IO_UTIL_H__
 
-#include <linux/gpio.h>
 #include <linux/platform_device.h>
 #include <linux/types.h>
 
@@ -14,12 +13,6 @@
 #define DEV_WARN(fmt, args...)  pr_warn(fmt, ##args)
 #define DEV_ERR(fmt, args...)   pr_err(fmt, ##args)
 
-struct dss_gpio {
-	unsigned int gpio;
-	unsigned int value;
-	char gpio_name[32];
-};
-
 enum dss_clk_type {
 	DSS_CLK_AHB, /* no set rate. rate controlled through rpm */
 	DSS_CLK_PCLK,
@@ -34,8 +27,6 @@ struct dss_clk {
 };
 
 struct dss_module_power {
-	unsigned int num_gpio;
-	struct dss_gpio *gpio_config;
 	unsigned int num_clk;
 	struct dss_clk *clk_config;
 };
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index bb9d44e7bd26..58b0485dc375 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -7,10 +7,12 @@
 
 #define pr_fmt(fmt)	"[drm:%s:%d] " fmt, __func__, __LINE__
 
-#include <drm/drm_crtc.h>
 #include <linux/debugfs.h>
-#include <linux/of_irq.h>
 #include <linux/dma-buf.h>
+#include <linux/of_irq.h>
+
+#include <drm/drm_crtc.h>
+#include <drm/drm_file.h>
 
 #include "msm_drv.h"
 #include "msm_mmu.h"
@@ -248,6 +250,32 @@ static void dpu_kms_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc)
 	dpu_crtc_vblank(crtc, false);
 }
 
+static void dpu_kms_enable_commit(struct msm_kms *kms)
+{
+	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
+	pm_runtime_get_sync(&dpu_kms->pdev->dev);
+}
+
+static void dpu_kms_disable_commit(struct msm_kms *kms)
+{
+	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
+	pm_runtime_put_sync(&dpu_kms->pdev->dev);
+}
+
+static ktime_t dpu_kms_vsync_time(struct msm_kms *kms, struct drm_crtc *crtc)
+{
+	struct drm_encoder *encoder;
+
+	drm_for_each_encoder_mask(encoder, crtc->dev, crtc->state->encoder_mask) {
+		ktime_t vsync_time;
+
+		if (dpu_encoder_vsync_time(encoder, &vsync_time) == 0)
+			return vsync_time;
+	}
+
+	return ktime_get();
+}
+
 static void dpu_kms_prepare_commit(struct msm_kms *kms,
 		struct drm_atomic_state *state)
 {
@@ -267,7 +295,6 @@ static void dpu_kms_prepare_commit(struct msm_kms *kms,
 	if (!dev || !dev->dev_private)
 		return;
 	priv = dev->dev_private;
-	pm_runtime_get_sync(&dpu_kms->pdev->dev);
 
 	/* Call prepare_commit for all affected encoders */
 	for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
@@ -278,6 +305,20 @@ static void dpu_kms_prepare_commit(struct msm_kms *kms,
 	}
 }
 
+static void dpu_kms_flush_commit(struct msm_kms *kms, unsigned crtc_mask)
+{
+	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
+	struct drm_crtc *crtc;
+
+	for_each_crtc_mask(dpu_kms->dev, crtc, crtc_mask) {
+		if (!crtc->state->active)
+			continue;
+
+		trace_dpu_kms_commit(DRMID(crtc));
+		dpu_crtc_commit_kickoff(crtc);
+	}
+}
+
 /*
  * Override the encoder enable since we need to setup the inline rotator and do
  * some crtc magic before enabling any bridge that might be present.
@@ -298,52 +339,18 @@ void dpu_kms_encoder_enable(struct drm_encoder *encoder)
 			continue;
 
 		trace_dpu_kms_enc_enable(DRMID(crtc));
-		dpu_crtc_commit_kickoff(crtc, false);
-	}
-}
-
-static void dpu_kms_commit(struct msm_kms *kms, struct drm_atomic_state *state)
-{
-	struct drm_crtc *crtc;
-	struct drm_crtc_state *crtc_state;
-	int i;
-
-	for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
-		/* If modeset is required, kickoff is run in encoder_enable */
-		if (drm_atomic_crtc_needs_modeset(crtc_state))
-			continue;
-
-		if (crtc->state->active) {
-			trace_dpu_kms_commit(DRMID(crtc));
-			dpu_crtc_commit_kickoff(crtc,
-						state->legacy_cursor_update);
-		}
 	}
 }
 
-static void dpu_kms_complete_commit(struct msm_kms *kms,
-		struct drm_atomic_state *old_state)
+static void dpu_kms_complete_commit(struct msm_kms *kms, unsigned crtc_mask)
 {
-	struct dpu_kms *dpu_kms;
-	struct msm_drm_private *priv;
+	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
 	struct drm_crtc *crtc;
-	struct drm_crtc_state *old_crtc_state;
-	int i;
-
-	if (!kms || !old_state)
-		return;
-	dpu_kms = to_dpu_kms(kms);
-
-	if (!dpu_kms->dev || !dpu_kms->dev->dev_private)
-		return;
-	priv = dpu_kms->dev->dev_private;
 
 	DPU_ATRACE_BEGIN("kms_complete_commit");
 
-	for_each_old_crtc_in_state(old_state, crtc, old_crtc_state, i)
-		dpu_crtc_complete_commit(crtc, old_crtc_state);
-
-	pm_runtime_put_sync(&dpu_kms->pdev->dev);
+	for_each_crtc_mask(dpu_kms->dev, crtc, crtc_mask)
+		dpu_crtc_complete_commit(crtc);
 
 	DPU_ATRACE_END("kms_complete_commit");
 }
@@ -389,6 +396,15 @@ static void dpu_kms_wait_for_commit_done(struct msm_kms *kms,
 	}
 }
 
+static void dpu_kms_wait_flush(struct msm_kms *kms, unsigned crtc_mask)
+{
+	struct dpu_kms *dpu_kms = to_dpu_kms(kms);
+	struct drm_crtc *crtc;
+
+	for_each_crtc_mask(dpu_kms->dev, crtc, crtc_mask)
+		dpu_kms_wait_for_commit_done(kms, crtc);
+}
+
 static int _dpu_kms_initialize_dsi(struct drm_device *dev,
 				    struct msm_drm_private *priv,
 				    struct dpu_kms *dpu_kms)
@@ -490,11 +506,6 @@ static int _dpu_kms_drm_obj_init(struct dpu_kms *dpu_kms)
 	int primary_planes_idx = 0, cursor_planes_idx = 0, i, ret;
 	int max_crtc_count;
 
-	if (!dpu_kms || !dpu_kms->dev || !dpu_kms->dev->dev) {
-		DPU_ERROR("invalid dpu_kms\n");
-		return -EINVAL;
-	}
-
 	dev = dpu_kms->dev;
 	priv = dev->dev_private;
 	catalog = dpu_kms->catalog;
@@ -686,10 +697,13 @@ static const struct msm_kms_funcs kms_funcs = {
 	.irq_preinstall  = dpu_irq_preinstall,
 	.irq_uninstall   = dpu_irq_uninstall,
 	.irq             = dpu_irq,
+	.enable_commit   = dpu_kms_enable_commit,
+	.disable_commit  = dpu_kms_disable_commit,
+	.vsync_time      = dpu_kms_vsync_time,
 	.prepare_commit  = dpu_kms_prepare_commit,
-	.commit          = dpu_kms_commit,
+	.flush_commit    = dpu_kms_flush_commit,
+	.wait_flush      = dpu_kms_wait_flush,
 	.complete_commit = dpu_kms_complete_commit,
-	.wait_for_crtc_commit_done = dpu_kms_wait_for_commit_done,
 	.enable_vblank   = dpu_kms_enable_vblank,
 	.disable_vblank  = dpu_kms_disable_vblank,
 	.check_modified_format = dpu_format_check_modified_format,
@@ -800,6 +814,8 @@ static int dpu_kms_hw_init(struct msm_kms *kms)
 		return rc;
 	}
 
+	atomic_set(&dpu_kms->bandwidth_ref, 0);
+
 	dpu_kms->mmio = msm_ioremap(dpu_kms->pdev, "mdp", "mdp");
 	if (IS_ERR(dpu_kms->mmio)) {
 		rc = PTR_ERR(dpu_kms->mmio);
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
index e1ec7110eb2e..959d03e007fa 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
@@ -8,6 +8,8 @@
 #ifndef __DPU_KMS_H__
 #define __DPU_KMS_H__
 
+#include <drm/drm_drv.h>
+
 #include "msm_drv.h"
 #include "msm_kms.h"
 #include "msm_mmu.h"
@@ -120,6 +122,14 @@ struct dpu_kms {
 	struct platform_device *pdev;
 	bool rpm_enabled;
 	struct dss_module_power mp;
+
+	/* reference count bandwidth requests, so we know when we can
+	 * release bandwidth.  Each atomic update increments, and frame-
+	 * done event decrements.  Additionally, for video mode, the
+	 * reference is incremented when crtc is enabled, and decremented
+	 * when disabled.
+	 */
+	atomic_t bandwidth_ref;
 };
 
 struct vsync_info {
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
index 986915bbbc02..29705e773a4b 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
@@ -3,6 +3,10 @@
  * Copyright (c) 2018, The Linux Foundation
  */
 
+#include <linux/irq.h>
+#include <linux/irqchip.h>
+#include <linux/irqdesc.h>
+#include <linux/irqchip/chained_irq.h>
 #include "dpu_kms.h"
 #include <linux/interconnect.h>
 
@@ -22,7 +26,6 @@ struct dpu_mdss {
 	struct msm_mdss base;
 	void __iomem *mmio;
 	unsigned long mmio_len;
-	u32 hwversion;
 	struct dss_module_power mp;
 	struct dpu_irq_controller irq_controller;
 	struct icc_path *path[2];
@@ -287,10 +290,6 @@ int dpu_mdss_init(struct drm_device *dev)
 
 	dpu_mdss_icc_request_bw(priv->mdss);
 
-	pm_runtime_get_sync(dev->dev);
-	dpu_mdss->hwversion = readl_relaxed(dpu_mdss->mmio);
-	pm_runtime_put_sync(dev->dev);
-
 	return ret;
 
 irq_error:
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
index 8cf0b8a4ed03..58d5acbcfc5c 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -10,8 +10,9 @@
 #include <linux/debugfs.h>
 #include <linux/dma-buf.h>
 
-#include <drm/drm_damage_helper.h>
 #include <drm/drm_atomic_uapi.h>
+#include <drm/drm_damage_helper.h>
+#include <drm/drm_file.h>
 #include <drm/drm_gem_framebuffer_helper.h>
 
 #include "msm_drv.h"
@@ -1036,8 +1037,21 @@ static void dpu_plane_sspp_atomic_update(struct drm_plane *plane)
 				pstate->multirect_mode);
 
 	if (pdpu->pipe_hw->ops.setup_format) {
+		unsigned int rotation;
+
 		src_flags = 0x0;
 
+		rotation = drm_rotation_simplify(state->rotation,
+						 DRM_MODE_ROTATE_0 |
+						 DRM_MODE_REFLECT_X |
+						 DRM_MODE_REFLECT_Y);
+
+		if (rotation & DRM_MODE_REFLECT_X)
+			src_flags |= DPU_SSPP_FLIP_LR;
+
+		if (rotation & DRM_MODE_REFLECT_Y)
+			src_flags |= DPU_SSPP_FLIP_UD;
+
 		/* update format */
 		pdpu->pipe_hw->ops.setup_format(pdpu->pipe_hw, fmt, src_flags,
 				pstate->multirect_index);
@@ -1518,6 +1532,13 @@ struct drm_plane *dpu_plane_init(struct drm_device *dev,
 	if (ret)
 		DPU_ERROR("failed to install zpos property, rc = %d\n", ret);
 
+	drm_plane_create_rotation_property(plane,
+			DRM_MODE_ROTATE_0,
+			DRM_MODE_ROTATE_0 |
+			DRM_MODE_ROTATE_180 |
+			DRM_MODE_REFLECT_X |
+			DRM_MODE_REFLECT_Y);
+
 	drm_plane_enable_fb_damage_clips(plane);
 
 	/* success! finalize initialization */
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
index 765484437d11..eecfe9b3199e 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
@@ -392,7 +392,7 @@ TRACE_EVENT(dpu_enc_rc,
 		__entry->rc_state = rc_state;
 		__assign_str(stage_str, stage);
 	),
-	TP_printk("%s: id:%u, sw_event:%d, idle_pc_supported:%s, rc_state:%d\n",
+	TP_printk("%s: id:%u, sw_event:%d, idle_pc_supported:%s, rc_state:%d",
 		  __get_str(stage_str), __entry->drm_id, __entry->sw_event,
 		  __entry->idle_pc_supported ? "true" : "false",
 		  __entry->rc_state)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_vbif.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_vbif.c
index 8bc3aea7cd86..8d24b79fd400 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_vbif.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_vbif.c
@@ -5,6 +5,7 @@
 #define pr_fmt(fmt)	"[drm:%s:%d] " fmt, __func__, __LINE__
 
 #include <linux/debugfs.h>
+#include <linux/delay.h>
 
 #include "dpu_vbif.h"
 #include "dpu_hw_vbif.h"
@@ -264,11 +265,6 @@ void dpu_vbif_clear_errors(struct dpu_kms *dpu_kms)
 	struct dpu_hw_vbif *vbif;
 	u32 i, pnd, src;
 
-	if (!dpu_kms) {
-		DPU_ERROR("invalid argument\n");
-		return;
-	}
-
 	for (i = 0; i < ARRAY_SIZE(dpu_kms->hw_vbif); i++) {
 		vbif = dpu_kms->hw_vbif[i];
 		if (vbif && vbif->ops.clear_errors) {
@@ -286,11 +282,6 @@ void dpu_vbif_init_memtypes(struct dpu_kms *dpu_kms)
 	struct dpu_hw_vbif *vbif;
 	int i, j;
 
-	if (!dpu_kms) {
-		DPU_ERROR("invalid argument\n");
-		return;
-	}
-
 	for (i = 0; i < ARRAY_SIZE(dpu_kms->hw_vbif); i++) {
 		vbif = dpu_kms->hw_vbif[i];
 		if (vbif && vbif->cap && vbif->ops.set_mem_type) {