DPU resource manager cleanup

index bdb1177..36a929b 100644
@@ -21,8 +21,8 @@
 #include "dpu_encoder.h"
 #include "dpu_trace.h"
 
-#define RESERVED_BY_OTHER(h, r) \
-	((h)->rsvp && ((h)->rsvp->enc_id != (r)->enc_id))
+#define RESERVED_BY_OTHER(h, r)  \
+		((h)->enc_id && (h)->enc_id != r)
 
 /**
  * struct dpu_rm_requirements - Reservation requirements parameter bundle

@@ -34,85 +34,23 @@ struct dpu_rm_requirements {
 	struct dpu_encoder_hw_resources hw_res;
 };
 
-/**
- * struct dpu_rm_rsvp - Use Case Reservation tagging structure
- *	Used to tag HW blocks as reserved by a CRTC->Encoder->Connector chain
- *	By using as a tag, rather than lists of pointers to HW blocks used
- *	we can avoid some list management since we don't know how many blocks
- *	of each type a given use case may require.
- * @list:	List head for list of all reservations
- * @seq:	Global RSVP sequence number for debugging, especially for
- *		differentiating differenct allocations for same encoder.
- * @enc_id:	Reservations are tracked by Encoder DRM object ID.
- *		CRTCs may be connected to multiple Encoders.
- *		An encoder or connector id identifies the display path.
- */
-struct dpu_rm_rsvp {
-	struct list_head list;
-	uint32_t seq;
-	uint32_t enc_id;
-};
 
 /**
  * struct dpu_rm_hw_blk - hardware block tracking list member
  * @list:	List head for list of all hardware blocks tracking items
- * @rsvp:	Pointer to use case reservation if reserved by a client
- * @rsvp_nxt:	Temporary pointer used during reservation to the incoming
- *		request. Will be swapped into rsvp if proposal is accepted
  * @type:	Type of hardware block this structure tracks
  * @id:		Hardware ID number, within it's own space, ie. LM_X
- * @catalog:	Pointer to the hardware catalog entry for this block
+ * @enc_id:	Encoder id to which this blk is binded
  * @hw:		Pointer to the hardware register access object for this block
  */
 struct dpu_rm_hw_blk {
 	struct list_head list;
-	struct dpu_rm_rsvp *rsvp;
-	struct dpu_rm_rsvp *rsvp_nxt;
 	enum dpu_hw_blk_type type;
 	uint32_t id;
+	uint32_t enc_id;
 	struct dpu_hw_blk *hw;
 };
 
-/**
- * dpu_rm_dbg_rsvp_stage - enum of steps in making reservation for event logging
- */
-enum dpu_rm_dbg_rsvp_stage {
-	DPU_RM_STAGE_BEGIN,
-	DPU_RM_STAGE_AFTER_CLEAR,
-	DPU_RM_STAGE_AFTER_RSVPNEXT,
-	DPU_RM_STAGE_FINAL
-};
-
-static void _dpu_rm_print_rsvps(
-		struct dpu_rm *rm,
-		enum dpu_rm_dbg_rsvp_stage stage)
-{
-	struct dpu_rm_rsvp *rsvp;
-	struct dpu_rm_hw_blk *blk;
-	enum dpu_hw_blk_type type;
-
-	DPU_DEBUG("%d\n", stage);
-
-	list_for_each_entry(rsvp, &rm->rsvps, list) {
-		DRM_DEBUG_KMS("%d rsvp[s%ue%u]\n", stage, rsvp->seq,
-			      rsvp->enc_id);
-	}
-
-	for (type = 0; type < DPU_HW_BLK_MAX; type++) {
-		list_for_each_entry(blk, &rm->hw_blks[type], list) {
-			if (!blk->rsvp && !blk->rsvp_nxt)
-				continue;
-
-			DRM_DEBUG_KMS("%d rsvp[s%ue%u->s%ue%u] %d %d\n", stage,
-				(blk->rsvp) ? blk->rsvp->seq : 0,
-				(blk->rsvp) ? blk->rsvp->enc_id : 0,
-				(blk->rsvp_nxt) ? blk->rsvp_nxt->seq : 0,
-				(blk->rsvp_nxt) ? blk->rsvp_nxt->enc_id : 0,
-				blk->type, blk->id);
-		}
-	}
-}
-
 struct dpu_hw_mdp *dpu_rm_get_mdp(struct dpu_rm *rm)
 {
 	return rm->hw_mdp;

@@ -148,15 +86,13 @@ static bool _dpu_rm_get_hw_locked(struct dpu_rm *rm, struct dpu_rm_hw_iter *i)
 	i->blk = list_prepare_entry(i->blk, blk_list, list);
 
 	list_for_each_entry_continue(i->blk, blk_list, list) {
-		struct dpu_rm_rsvp *rsvp = i->blk->rsvp;
-
 		if (i->blk->type != i->type) {
 			DPU_ERROR("found incorrect block type %d on %d list\n",
 					i->blk->type, i->type);
 			return false;
 		}
 
-		if ((i->enc_id == 0) || (rsvp && rsvp->enc_id == i->enc_id)) {
+		if (i->enc_id == i->blk->enc_id) {
 			i->hw = i->blk->hw;
 			DPU_DEBUG("found type %d id %d for enc %d\n",
 					i->type, i->blk->id, i->enc_id);

@@ -208,22 +144,9 @@ static void _dpu_rm_hw_destroy(enum dpu_hw_blk_type type, void *hw)
 
 int dpu_rm_destroy(struct dpu_rm *rm)
 {
-
-	struct dpu_rm_rsvp *rsvp_cur, *rsvp_nxt;
 	struct dpu_rm_hw_blk *hw_cur, *hw_nxt;
 	enum dpu_hw_blk_type type;
 
-	if (!rm) {
-		DPU_ERROR("invalid rm\n");
-		return -EINVAL;
-	}
-
-	list_for_each_entry_safe(rsvp_cur, rsvp_nxt, &rm->rsvps, list) {
-		list_del(&rsvp_cur->list);
-		kfree(rsvp_cur);
-	}
-
-
 	for (type = 0; type < DPU_HW_BLK_MAX; type++) {
 		list_for_each_entry_safe(hw_cur, hw_nxt, &rm->hw_blks[type],
 				list) {

@@ -293,6 +216,7 @@ static int _dpu_rm_hw_blk_create(
 	blk->type = type;
 	blk->id = id;
 	blk->hw = hw;
+	blk->enc_id = 0;
 	list_add_tail(&blk->list, &rm->hw_blks[type]);
 
 	return 0;

@@ -316,7 +240,6 @@ int dpu_rm_init(struct dpu_rm *rm,
 
 	mutex_init(&rm->rm_lock);
 
-	INIT_LIST_HEAD(&rm->rsvps);
 	for (type = 0; type < DPU_HW_BLK_MAX; type++)
 		INIT_LIST_HEAD(&rm->hw_blks[type]);
 

@@ -410,7 +333,7 @@ static bool _dpu_rm_needs_split_display(const struct msm_display_topology *top)
  *	proposed use case requirements, incl. hardwired dependent blocks like
  *	pingpong
  * @rm: dpu resource manager handle
- * @rsvp: reservation currently being created
+ * @enc_id: encoder id requesting for allocation
  * @reqs: proposed use case requirements
  * @lm: proposed layer mixer, function checks if lm, and all other hardwired
  *      blocks connected to the lm (pp) is available and appropriate

@@ -422,7 +345,7 @@ static bool _dpu_rm_needs_split_display(const struct msm_display_topology *top)
  */
 static bool _dpu_rm_check_lm_and_get_connected_blks(
 		struct dpu_rm *rm,
-		struct dpu_rm_rsvp *rsvp,
+		uint32_t enc_id,
 		struct dpu_rm_requirements *reqs,
 		struct dpu_rm_hw_blk *lm,
 		struct dpu_rm_hw_blk **pp,

@@ -449,7 +372,7 @@ static bool _dpu_rm_check_lm_and_get_connected_blks(
 	}
 
 	/* Already reserved? */
-	if (RESERVED_BY_OTHER(lm, rsvp)) {
+	if (RESERVED_BY_OTHER(lm, enc_id)) {
 		DPU_DEBUG("lm %d already reserved\n", lm_cfg->id);
 		return false;
 	}

@@ -467,7 +390,7 @@ static bool _dpu_rm_check_lm_and_get_connected_blks(
 		return false;
 	}
 
-	if (RESERVED_BY_OTHER(*pp, rsvp)) {
+	if (RESERVED_BY_OTHER(*pp, enc_id)) {
 		DPU_DEBUG("lm %d pp %d already reserved\n", lm->id,
 				(*pp)->id);
 		return false;

@@ -476,10 +399,8 @@ static bool _dpu_rm_check_lm_and_get_connected_blks(
 	return true;
 }
 
-static int _dpu_rm_reserve_lms(
-		struct dpu_rm *rm,
-		struct dpu_rm_rsvp *rsvp,
-		struct dpu_rm_requirements *reqs)
+static int _dpu_rm_reserve_lms(struct dpu_rm *rm, uint32_t enc_id,
+			       struct dpu_rm_requirements *reqs)
 
 {
 	struct dpu_rm_hw_blk *lm[MAX_BLOCKS];

@@ -504,7 +425,7 @@ static int _dpu_rm_reserve_lms(
 		lm[lm_count] = iter_i.blk;
 
 		if (!_dpu_rm_check_lm_and_get_connected_blks(
-				rm, rsvp, reqs, lm[lm_count],
+				rm, enc_id, reqs, lm[lm_count],
 				&pp[lm_count], NULL))
 			continue;
 

@@ -519,7 +440,7 @@ static int _dpu_rm_reserve_lms(
 				continue;
 
 			if (!_dpu_rm_check_lm_and_get_connected_blks(
-					rm, rsvp, reqs, iter_j.blk,
+					rm, enc_id, reqs, iter_j.blk,
 					&pp[lm_count], iter_i.blk))
 				continue;
 

@@ -537,10 +458,10 @@ static int _dpu_rm_reserve_lms(
 		if (!lm[i])
 			break;
 
-		lm[i]->rsvp_nxt = rsvp;
-		pp[i]->rsvp_nxt = rsvp;
+		lm[i]->enc_id = enc_id;
+		pp[i]->enc_id = enc_id;
 
-		trace_dpu_rm_reserve_lms(lm[i]->id, lm[i]->type, rsvp->enc_id,
+		trace_dpu_rm_reserve_lms(lm[i]->id, lm[i]->type, enc_id,
 					 pp[i]->id);
 	}
 

@@ -549,7 +470,7 @@ static int _dpu_rm_reserve_lms(
 
 static int _dpu_rm_reserve_ctls(
 		struct dpu_rm *rm,
-		struct dpu_rm_rsvp *rsvp,
+		uint32_t enc_id,
 		const struct msm_display_topology *top)
 {
 	struct dpu_rm_hw_blk *ctls[MAX_BLOCKS];

@@ -570,7 +491,7 @@ static int _dpu_rm_reserve_ctls(
 		unsigned long features = ctl->caps->features;
 		bool has_split_display;
 
-		if (RESERVED_BY_OTHER(iter.blk, rsvp))
+		if (RESERVED_BY_OTHER(iter.blk, enc_id))
 			continue;
 
 		has_split_display = BIT(DPU_CTL_SPLIT_DISPLAY) & features;

@@ -591,9 +512,9 @@ static int _dpu_rm_reserve_ctls(
 		return -ENAVAIL;
 
 	for (i = 0; i < ARRAY_SIZE(ctls) && i < num_ctls; i++) {
-		ctls[i]->rsvp_nxt = rsvp;
+		ctls[i]->enc_id = enc_id;
 		trace_dpu_rm_reserve_ctls(ctls[i]->id, ctls[i]->type,
-					  rsvp->enc_id);
+					  enc_id);
 	}
 
 	return 0;

@@ -601,7 +522,7 @@ static int _dpu_rm_reserve_ctls(
 
 static int _dpu_rm_reserve_intf(
 		struct dpu_rm *rm,
-		struct dpu_rm_rsvp *rsvp,
+		uint32_t enc_id,
 		uint32_t id,
 		enum dpu_hw_blk_type type)
 {

@@ -614,14 +535,14 @@ static int _dpu_rm_reserve_intf(
 		if (iter.blk->id != id)
 			continue;
 
-		if (RESERVED_BY_OTHER(iter.blk, rsvp)) {
+		if (RESERVED_BY_OTHER(iter.blk, enc_id)) {
 			DPU_ERROR("type %d id %d already reserved\n", type, id);
 			return -ENAVAIL;
 		}
 
-		iter.blk->rsvp_nxt = rsvp;
+		iter.blk->enc_id = enc_id;
 		trace_dpu_rm_reserve_intf(iter.blk->id, iter.blk->type,
-					  rsvp->enc_id);
+					  enc_id);
 		break;
 	}
 

@@ -636,7 +557,7 @@ static int _dpu_rm_reserve_intf(
 
 static int _dpu_rm_reserve_intf_related_hw(
 		struct dpu_rm *rm,
-		struct dpu_rm_rsvp *rsvp,
+		uint32_t enc_id,
 		struct dpu_encoder_hw_resources *hw_res)
 {
 	int i, ret = 0;

@@ -646,7 +567,7 @@ static int _dpu_rm_reserve_intf_related_hw(
 		if (hw_res->intfs[i] == INTF_MODE_NONE)
 			continue;
 		id = i + INTF_0;
-		ret = _dpu_rm_reserve_intf(rm, rsvp, id,
+		ret = _dpu_rm_reserve_intf(rm, enc_id, id,
 				DPU_HW_BLK_INTF);
 		if (ret)
 			return ret;

@@ -655,33 +576,27 @@ static int _dpu_rm_reserve_intf_related_hw(
 	return ret;
 }
 
-static int _dpu_rm_make_next_rsvp(
+static int _dpu_rm_make_reservation(
 		struct dpu_rm *rm,
 		struct drm_encoder *enc,
 		struct drm_crtc_state *crtc_state,
-		struct dpu_rm_rsvp *rsvp,
 		struct dpu_rm_requirements *reqs)
 {
 	int ret;
 
-	/* Create reservation info, tag reserved blocks with it as we go */
-	rsvp->seq = ++rm->rsvp_next_seq;
-	rsvp->enc_id = enc->base.id;
-	list_add_tail(&rsvp->list, &rm->rsvps);
-
-	ret = _dpu_rm_reserve_lms(rm, rsvp, reqs);
+	ret = _dpu_rm_reserve_lms(rm, enc->base.id, reqs);
 	if (ret) {
 		DPU_ERROR("unable to find appropriate mixers\n");
 		return ret;
 	}
 
-	ret = _dpu_rm_reserve_ctls(rm, rsvp, &reqs->topology);
+	ret = _dpu_rm_reserve_ctls(rm, enc->base.id, &reqs->topology);
 	if (ret) {
 		DPU_ERROR("unable to find appropriate CTL\n");
 		return ret;
 	}
 
-	ret = _dpu_rm_reserve_intf_related_hw(rm, rsvp, &reqs->hw_res);
+	ret = _dpu_rm_reserve_intf_related_hw(rm, enc->base.id, &reqs->hw_res);
 	if (ret)
 		return ret;
 

@@ -706,108 +621,31 @@ static int _dpu_rm_populate_requirements(
 	return 0;
 }
 
-static struct dpu_rm_rsvp *_dpu_rm_get_rsvp(
-		struct dpu_rm *rm,
-		struct drm_encoder *enc)
+static void _dpu_rm_release_reservation(struct dpu_rm *rm, uint32_t enc_id)
 {
-	struct dpu_rm_rsvp *i;
-
-	if (!rm || !enc) {
-		DPU_ERROR("invalid params\n");
-		return NULL;
-	}
-
-	if (list_empty(&rm->rsvps))
-		return NULL;
-
-	list_for_each_entry(i, &rm->rsvps, list)
-		if (i->enc_id == enc->base.id)
-			return i;
-
-	return NULL;
-}
-
-/**
- * _dpu_rm_release_rsvp - release resources and release a reservation
- * @rm:	KMS handle
- * @rsvp:	RSVP pointer to release and release resources for
- */
-static void _dpu_rm_release_rsvp(struct dpu_rm *rm, struct dpu_rm_rsvp *rsvp)
-{
-	struct dpu_rm_rsvp *rsvp_c, *rsvp_n;
 	struct dpu_rm_hw_blk *blk;
 	enum dpu_hw_blk_type type;
 
-	if (!rsvp)
-		return;
-
-	DPU_DEBUG("rel rsvp %d enc %d\n", rsvp->seq, rsvp->enc_id);
-
-	list_for_each_entry_safe(rsvp_c, rsvp_n, &rm->rsvps, list) {
-		if (rsvp == rsvp_c) {
-			list_del(&rsvp_c->list);
-			break;
-		}
-	}
-
 	for (type = 0; type < DPU_HW_BLK_MAX; type++) {
 		list_for_each_entry(blk, &rm->hw_blks[type], list) {
-			if (blk->rsvp == rsvp) {
-				blk->rsvp = NULL;
-				DPU_DEBUG("rel rsvp %d enc %d %d %d\n",
-						rsvp->seq, rsvp->enc_id,
-						blk->type, blk->id);
-			}
-			if (blk->rsvp_nxt == rsvp) {
-				blk->rsvp_nxt = NULL;
-				DPU_DEBUG("rel rsvp_nxt %d enc %d %d %d\n",
-						rsvp->seq, rsvp->enc_id,
-						blk->type, blk->id);
+			if (blk->enc_id == enc_id) {
+				blk->enc_id = 0;
+				DPU_DEBUG("rel enc %d %d %d\n", enc_id,
+					  blk->type, blk->id);
 			}
 		}
 	}
-
-	kfree(rsvp);
 }
 
 void dpu_rm_release(struct dpu_rm *rm, struct drm_encoder *enc)
 {
-	struct dpu_rm_rsvp *rsvp;
-
-	if (!rm || !enc) {
-		DPU_ERROR("invalid params\n");
-		return;
-	}
-
 	mutex_lock(&rm->rm_lock);
 
-	rsvp = _dpu_rm_get_rsvp(rm, enc);
-	if (!rsvp) {
-		DPU_ERROR("failed to find rsvp for enc %d\n", enc->base.id);
-		goto end;
-	}
+	_dpu_rm_release_reservation(rm, enc->base.id);
 
-	_dpu_rm_release_rsvp(rm, rsvp);
-end:
 	mutex_unlock(&rm->rm_lock);
 }
 
-static void _dpu_rm_commit_rsvp(struct dpu_rm *rm, struct dpu_rm_rsvp *rsvp)
-{
-	struct dpu_rm_hw_blk *blk;
-	enum dpu_hw_blk_type type;
-
-	/* Swap next rsvp to be the active */
-	for (type = 0; type < DPU_HW_BLK_MAX; type++) {
-		list_for_each_entry(blk, &rm->hw_blks[type], list) {
-			if (blk->rsvp_nxt) {
-				blk->rsvp = blk->rsvp_nxt;
-				blk->rsvp_nxt = NULL;
-			}
-		}
-	}
-}
-
 int dpu_rm_reserve(
 		struct dpu_rm *rm,
 		struct drm_encoder *enc,

@@ -815,7 +653,6 @@ int dpu_rm_reserve(
 		struct msm_display_topology topology,
 		bool test_only)
 {
-	struct dpu_rm_rsvp *rsvp_cur, *rsvp_nxt;
 	struct dpu_rm_requirements reqs;
 	int ret;
 

@@ -828,8 +665,6 @@ int dpu_rm_reserve(
 
 	mutex_lock(&rm->rm_lock);
 
-	_dpu_rm_print_rsvps(rm, DPU_RM_STAGE_BEGIN);
-
 	ret = _dpu_rm_populate_requirements(rm, enc, crtc_state, &reqs,
 					    topology);
 	if (ret) {

@@ -837,50 +672,17 @@ int dpu_rm_reserve(
 		goto end;
 	}
 
-	/*
-	 * We only support one active reservation per-hw-block. But to implement
-	 * transactional semantics for test-only, and for allowing failure while
-	 * modifying your existing reservation, over the course of this
-	 * function we can have two reservations:
-	 * Current: Existing reservation
-	 * Next: Proposed reservation. The proposed reservation may fail, or may
-	 *       be discarded if in test-only mode.
-	 * If reservation is successful, and we're not in test-only, then we
-	 * replace the current with the next.
-	 */
-	rsvp_nxt = kzalloc(sizeof(*rsvp_nxt), GFP_KERNEL);
-	if (!rsvp_nxt) {
-		ret = -ENOMEM;
-		goto end;
-	}
-
-	rsvp_cur = _dpu_rm_get_rsvp(rm, enc);
-
-	/* Check the proposed reservation, store it in hw's "next" field */
-	ret = _dpu_rm_make_next_rsvp(rm, enc, crtc_state, rsvp_nxt, &reqs);
-
-	_dpu_rm_print_rsvps(rm, DPU_RM_STAGE_AFTER_RSVPNEXT);
-
+	ret = _dpu_rm_make_reservation(rm, enc, crtc_state, &reqs);
 	if (ret) {
 		DPU_ERROR("failed to reserve hw resources: %d\n", ret);
-		_dpu_rm_release_rsvp(rm, rsvp_nxt);
+		_dpu_rm_release_reservation(rm, enc->base.id);
 	} else if (test_only) {
-		/*
-		 * Normally, if test_only, test the reservation and then undo
-		 * However, if the user requests LOCK, then keep the reservation
-		 * made during the atomic_check phase.
-		 */
-		DPU_DEBUG("test_only: discard test rsvp[s%de%d]\n",
-				rsvp_nxt->seq, rsvp_nxt->enc_id);
-		_dpu_rm_release_rsvp(rm, rsvp_nxt);
-	} else {
-		_dpu_rm_release_rsvp(rm, rsvp_cur);
-
-		_dpu_rm_commit_rsvp(rm, rsvp_nxt);
+		 /* test_only: test the reservation and then undo */
+		DPU_DEBUG("test_only: discard test [enc: %d]\n",
+				enc->base.id);
+		_dpu_rm_release_reservation(rm, enc->base.id);
 	}
 
-	_dpu_rm_print_rsvps(rm, DPU_RM_STAGE_FINAL);
-
 end:
 	mutex_unlock(&rm->rm_lock);
 

index b8273bd..0dd3c21 100644
@@ -23,21 +23,17 @@
 /**
  * struct dpu_rm - DPU dynamic hardware resource manager
  * @dev: device handle for event logging purposes
- * @rsvps: list of hardware reservations by each crtc->encoder->connector
  * @hw_blks: array of lists of hardware resources present in the system, one
  *	list per type of hardware block
  * @hw_mdp: hardware object for mdp_top
  * @lm_max_width: cached layer mixer maximum width
- * @rsvp_next_seq: sequence number for next reservation for debugging purposes
  * @rm_lock: resource manager mutex
  */
 struct dpu_rm {
 	struct drm_device *dev;
-	struct list_head rsvps;
 	struct list_head hw_blks[DPU_HW_BLK_MAX];
 	struct dpu_hw_mdp *hw_mdp;
 	uint32_t lm_max_width;
-	uint32_t rsvp_next_seq;
 	struct mutex rm_lock;
 };
 

index 4d67b3c..1ecd04a 100644
@@ -877,8 +877,7 @@ static int dpu_kms_hw_init(struct msm_kms *kms)
 		goto power_error;
 	}
 
-	rc = dpu_rm_init(&dpu_kms->rm, dpu_kms->catalog, dpu_kms->mmio,
-			dpu_kms->dev);
+	rc = dpu_rm_init(&dpu_kms->rm, dpu_kms->catalog, dpu_kms->mmio);
 	if (rc) {
 		DPU_ERROR("rm init failed: %d\n", rc);
 		goto power_error;

index 36a929b..5ce89b9 100644
@@ -224,13 +224,12 @@ static int _dpu_rm_hw_blk_create(
 
 int dpu_rm_init(struct dpu_rm *rm,
 		struct dpu_mdss_cfg *cat,
-		void __iomem *mmio,
-		struct drm_device *dev)
+		void __iomem *mmio)
 {
 	int rc, i;
 	enum dpu_hw_blk_type type;
 
-	if (!rm || !cat || !mmio || !dev) {
+	if (!rm || !cat || !mmio) {
 		DPU_ERROR("invalid kms\n");
 		return -EINVAL;
 	}

@@ -243,8 +242,6 @@ int dpu_rm_init(struct dpu_rm *rm,
 	for (type = 0; type < DPU_HW_BLK_MAX; type++)
 		INIT_LIST_HEAD(&rm->hw_blks[type]);
 
-	rm->dev = dev;
-
 	/* Some of the sub-blocks require an mdptop to be created */
 	rm->hw_mdp = dpu_hw_mdptop_init(MDP_TOP, mmio, cat);
 	if (IS_ERR_OR_NULL(rm->hw_mdp)) {

index 0dd3c21..f41fd19 100644
@@ -22,7 +22,6 @@
 
 /**
  * struct dpu_rm - DPU dynamic hardware resource manager
- * @dev: device handle for event logging purposes
  * @hw_blks: array of lists of hardware resources present in the system, one
  *	list per type of hardware block
  * @hw_mdp: hardware object for mdp_top

@@ -30,7 +29,6 @@
  * @rm_lock: resource manager mutex
  */
 struct dpu_rm {
-	struct drm_device *dev;
 	struct list_head hw_blks[DPU_HW_BLK_MAX];
 	struct dpu_hw_mdp *hw_mdp;
 	uint32_t lm_max_width;

@@ -63,13 +61,11 @@ struct dpu_rm_hw_iter {
  * @rm: DPU Resource Manager handle
  * @cat: Pointer to hardware catalog
  * @mmio: mapped register io address of MDP
- * @dev: device handle for event logging purposes
  * @Return: 0 on Success otherwise -ERROR
  */
 int dpu_rm_init(struct dpu_rm *rm,
 		struct dpu_mdss_cfg *cat,
-		void __iomem *mmio,
-		struct drm_device *dev);
+		void __iomem *mmio);
 
 /**
  * dpu_rm_destroy - Free all memory allocated by dpu_rm_init

index 9be7c35..d6e6925 100644
@@ -465,8 +465,6 @@ static void _dpu_crtc_setup_mixer_for_encoder(
 			return;
 		}
 
-		mixer->encoder = enc;
-
 		cstate->num_mixers++;
 		DPU_DEBUG("setup mixer %d: lm %d\n",
 				i, mixer->hw_lm->idx - LM_0);

index dbfb38a..e59d62b 100644
@@ -84,14 +84,12 @@ struct dpu_crtc_smmu_state_data {
  * struct dpu_crtc_mixer: stores the map for each virtual pipeline in the CRTC
  * @hw_lm:	LM HW Driver context
  * @lm_ctl:	CTL Path HW driver context
- * @encoder:	Encoder attached to this lm & ctl
  * @mixer_op_mode:	mixer blending operation mode
  * @flush_mask:	mixer flush mask for ctl, mixer and pipe
  */
 struct dpu_crtc_mixer {
 	struct dpu_hw_mixer *hw_lm;
 	struct dpu_hw_ctl *lm_ctl;
-	struct drm_encoder *encoder;
 	u32 mixer_op_mode;
 	u32 flush_mask;
 };

index 5ce89b9..e7fc9a4 100644
@@ -38,14 +38,12 @@ struct dpu_rm_requirements {
 /**
  * struct dpu_rm_hw_blk - hardware block tracking list member
  * @list:	List head for list of all hardware blocks tracking items
- * @type:	Type of hardware block this structure tracks
  * @id:		Hardware ID number, within it's own space, ie. LM_X
  * @enc_id:	Encoder id to which this blk is binded
  * @hw:		Pointer to the hardware register access object for this block
  */
 struct dpu_rm_hw_blk {
 	struct list_head list;
-	enum dpu_hw_blk_type type;
 	uint32_t id;
 	uint32_t enc_id;
 	struct dpu_hw_blk *hw;

@@ -86,12 +84,6 @@ static bool _dpu_rm_get_hw_locked(struct dpu_rm *rm, struct dpu_rm_hw_iter *i)
 	i->blk = list_prepare_entry(i->blk, blk_list, list);
 
 	list_for_each_entry_continue(i->blk, blk_list, list) {
-		if (i->blk->type != i->type) {
-			DPU_ERROR("found incorrect block type %d on %d list\n",
-					i->blk->type, i->type);
-			return false;
-		}
-
 		if (i->enc_id == i->blk->enc_id) {
 			i->hw = i->blk->hw;
 			DPU_DEBUG("found type %d id %d for enc %d\n",

@@ -151,7 +143,7 @@ int dpu_rm_destroy(struct dpu_rm *rm)
 		list_for_each_entry_safe(hw_cur, hw_nxt, &rm->hw_blks[type],
 				list) {
 			list_del(&hw_cur->list);
-			_dpu_rm_hw_destroy(hw_cur->type, hw_cur->hw);
+			_dpu_rm_hw_destroy(type, hw_cur->hw);
 			kfree(hw_cur);
 		}
 	}

@@ -213,7 +205,6 @@ static int _dpu_rm_hw_blk_create(
 		return -ENOMEM;
 	}
 
-	blk->type = type;
 	blk->id = id;
 	blk->hw = hw;
 	blk->enc_id = 0;

@@ -458,8 +449,7 @@ static int _dpu_rm_reserve_lms(struct dpu_rm *rm, uint32_t enc_id,
 		lm[i]->enc_id = enc_id;
 		pp[i]->enc_id = enc_id;
 
-		trace_dpu_rm_reserve_lms(lm[i]->id, lm[i]->type, enc_id,
-					 pp[i]->id);
+		trace_dpu_rm_reserve_lms(lm[i]->id, enc_id, pp[i]->id);
 	}
 
 	return rc;

@@ -510,8 +500,7 @@ static int _dpu_rm_reserve_ctls(
 
 	for (i = 0; i < ARRAY_SIZE(ctls) && i < num_ctls; i++) {
 		ctls[i]->enc_id = enc_id;
-		trace_dpu_rm_reserve_ctls(ctls[i]->id, ctls[i]->type,
-					  enc_id);
+		trace_dpu_rm_reserve_ctls(ctls[i]->id, enc_id);
 	}
 
 	return 0;

@@ -538,8 +527,7 @@ static int _dpu_rm_reserve_intf(
 		}
 
 		iter.blk->enc_id = enc_id;
-		trace_dpu_rm_reserve_intf(iter.blk->id, iter.blk->type,
-					  enc_id);
+		trace_dpu_rm_reserve_intf(iter.blk->id, enc_id);
 		break;
 	}
 

@@ -628,7 +616,7 @@ static void _dpu_rm_release_reservation(struct dpu_rm *rm, uint32_t enc_id)
 			if (blk->enc_id == enc_id) {
 				blk->enc_id = 0;
 				DPU_DEBUG("rel enc %d %d %d\n", enc_id,
-					  blk->type, blk->id);
+					  type, blk->id);
 			}
 		}
 	}

index c78b521..8bb4609 100644
@@ -831,48 +831,42 @@
 );
 
 DECLARE_EVENT_CLASS(dpu_rm_iter_template,
-	TP_PROTO(uint32_t id, enum dpu_hw_blk_type type, uint32_t enc_id),
-	TP_ARGS(id, type, enc_id),
+	TP_PROTO(uint32_t id, uint32_t enc_id),
+	TP_ARGS(id, enc_id),
 	TP_STRUCT__entry(
 		__field(	uint32_t,		id	)
-		__field(	enum dpu_hw_blk_type,	type	)
 		__field(	uint32_t,		enc_id	)
 	),
 	TP_fast_assign(
 		__entry->id = id;
-		__entry->type = type;
 		__entry->enc_id = enc_id;
 	),
-	TP_printk("id:%d type:%d enc_id:%u", __entry->id, __entry->type,
-		  __entry->enc_id)
+	TP_printk("id:%d enc_id:%u", __entry->id, __entry->enc_id)
 );
 DEFINE_EVENT(dpu_rm_iter_template, dpu_rm_reserve_intf,
-	TP_PROTO(uint32_t id, enum dpu_hw_blk_type type, uint32_t enc_id),
-	TP_ARGS(id, type, enc_id)
+	TP_PROTO(uint32_t id, uint32_t enc_id),
+	TP_ARGS(id, enc_id)
 );
 DEFINE_EVENT(dpu_rm_iter_template, dpu_rm_reserve_ctls,
-	TP_PROTO(uint32_t id, enum dpu_hw_blk_type type, uint32_t enc_id),
-	TP_ARGS(id, type, enc_id)
+	TP_PROTO(uint32_t id, uint32_t enc_id),
+	TP_ARGS(id, enc_id)
 );
 
 TRACE_EVENT(dpu_rm_reserve_lms,
-	TP_PROTO(uint32_t id, enum dpu_hw_blk_type type, uint32_t enc_id,
-		 uint32_t pp_id),
-	TP_ARGS(id, type, enc_id, pp_id),
+	TP_PROTO(uint32_t id, uint32_t enc_id, uint32_t pp_id),
+	TP_ARGS(id, enc_id, pp_id),
 	TP_STRUCT__entry(
 		__field(	uint32_t,		id	)
-		__field(	enum dpu_hw_blk_type,	type	)
 		__field(	uint32_t,		enc_id	)
 		__field(	uint32_t,		pp_id	)
 	),
 	TP_fast_assign(
 		__entry->id = id;
-		__entry->type = type;
 		__entry->enc_id = enc_id;
 		__entry->pp_id = pp_id;
 	),
-	TP_printk("id:%d type:%d enc_id:%u pp_id:%u", __entry->id,
-		  __entry->type, __entry->enc_id, __entry->pp_id)
+	TP_printk("id:%d enc_id:%u pp_id:%u", __entry->id,
+		  __entry->enc_id, __entry->pp_id)
 );
 
 TRACE_EVENT(dpu_vbif_wait_xin_halt_fail,

index 1ecd04a..f489526 100644
@@ -627,6 +627,10 @@ static void _dpu_kms_hw_destroy(struct dpu_kms *dpu_kms)
 		devm_iounmap(&dpu_kms->pdev->dev, dpu_kms->vbif[VBIF_RT]);
 	dpu_kms->vbif[VBIF_RT] = NULL;
 
+	if (dpu_kms->hw_mdp)
+		dpu_hw_mdp_destroy(dpu_kms->hw_mdp);
+	dpu_kms->hw_mdp = NULL;
+
 	if (dpu_kms->mmio)
 		devm_iounmap(&dpu_kms->pdev->dev, dpu_kms->mmio);
 	dpu_kms->mmio = NULL;

@@ -885,11 +889,10 @@ static int dpu_kms_hw_init(struct msm_kms *kms)
 
 	dpu_kms->rm_init = true;
 
-	dpu_kms->hw_mdp = dpu_rm_get_mdp(&dpu_kms->rm);
-	if (IS_ERR_OR_NULL(dpu_kms->hw_mdp)) {
+	dpu_kms->hw_mdp = dpu_hw_mdptop_init(MDP_TOP, dpu_kms->mmio,
+					     dpu_kms->catalog);
+	if (IS_ERR(dpu_kms->hw_mdp)) {
 		rc = PTR_ERR(dpu_kms->hw_mdp);
-		if (!dpu_kms->hw_mdp)
-			rc = -EINVAL;
 		DPU_ERROR("failed to get hw_mdp: %d\n", rc);
 		dpu_kms->hw_mdp = NULL;
 		goto power_error;

index e7fc9a4..037d9f4 100644
@@ -49,11 +49,6 @@ struct dpu_rm_hw_blk {
 	struct dpu_hw_blk *hw;
 };
 
-struct dpu_hw_mdp *dpu_rm_get_mdp(struct dpu_rm *rm)
-{
-	return rm->hw_mdp;
-}
-
 void dpu_rm_init_hw_iter(
 		struct dpu_rm_hw_iter *iter,
 		uint32_t enc_id,

@@ -148,9 +143,6 @@ int dpu_rm_destroy(struct dpu_rm *rm)
 		}
 	}
 
-	dpu_hw_mdp_destroy(rm->hw_mdp);
-	rm->hw_mdp = NULL;
-
 	mutex_destroy(&rm->rm_lock);
 
 	return 0;

@@ -165,11 +157,8 @@ static int _dpu_rm_hw_blk_create(
 		void *hw_catalog_info)
 {
 	struct dpu_rm_hw_blk *blk;
-	struct dpu_hw_mdp *hw_mdp;
 	void *hw;
 
-	hw_mdp = rm->hw_mdp;
-
 	switch (type) {
 	case DPU_HW_BLK_LM:
 		hw = dpu_hw_lm_init(id, mmio, cat);

@@ -233,15 +222,6 @@ int dpu_rm_init(struct dpu_rm *rm,
 	for (type = 0; type < DPU_HW_BLK_MAX; type++)
 		INIT_LIST_HEAD(&rm->hw_blks[type]);
 
-	/* Some of the sub-blocks require an mdptop to be created */
-	rm->hw_mdp = dpu_hw_mdptop_init(MDP_TOP, mmio, cat);
-	if (IS_ERR_OR_NULL(rm->hw_mdp)) {
-		rc = PTR_ERR(rm->hw_mdp);
-		rm->hw_mdp = NULL;
-		DPU_ERROR("failed: mdp hw not available\n");
-		goto fail;
-	}
-
 	/* Interrogate HW catalog and create tracking items for hw blocks */
 	for (i = 0; i < cat->mixer_count; i++) {
 		struct dpu_lm_cfg *lm = &cat->mixer[i];

index eb6a6ac..381611f 100644
@@ -24,13 +24,11 @@
  * struct dpu_rm - DPU dynamic hardware resource manager
  * @hw_blks: array of lists of hardware resources present in the system, one
  *	list per type of hardware block
- * @hw_mdp: hardware object for mdp_top
  * @lm_max_width: cached layer mixer maximum width
  * @rm_lock: resource manager mutex
  */
 struct dpu_rm {
 	struct list_head hw_blks[DPU_HW_BLK_MAX];
-	struct dpu_hw_mdp *hw_mdp;
 	uint32_t lm_max_width;
 	struct mutex rm_lock;
 };

@@ -104,14 +102,6 @@ int dpu_rm_reserve(struct dpu_rm *rm,
 void dpu_rm_release(struct dpu_rm *rm, struct drm_encoder *enc);
 
 /**
- * dpu_rm_get_mdp - Retrieve HW block for MDP TOP.
- *	This is never reserved, and is usable by any display.
- * @rm: DPU Resource Manager handle
- * @Return: Pointer to hw block or NULL
- */
-struct dpu_hw_mdp *dpu_rm_get_mdp(struct dpu_rm *rm);
-
-/**
  * dpu_rm_init_hw_iter - setup given iterator for new iteration over hw list
  *	using dpu_rm_get_hw
  * @iter: iter object to initialize

index f41fd19..eb6a6ac 100644
@@ -136,12 +136,4 @@ void dpu_rm_init_hw_iter(
  * @Return: true on match found, false on no match found
  */
 bool dpu_rm_get_hw(struct dpu_rm *rm, struct dpu_rm_hw_iter *iter);
-
-/**
- * dpu_rm_check_property_topctl - validate property bitmask before it is set
- * @val: user's proposed topology control bitmask
- * @Return: 0 on success or error
- */
-int dpu_rm_check_property_topctl(uint64_t val);
-
 #endif /* __DPU_RM_H__ */