diff --git a/drivers/accel/habanalabs/common/habanalabs.h b/drivers/accel/habanalabs/common/habanalabs.h
index d92ba2e30e31..2f027d5a8206 100644
--- a/drivers/accel/habanalabs/common/habanalabs.h
+++ b/drivers/accel/habanalabs/common/habanalabs.h
@@ -3980,6 +3980,15 @@ static inline void hl_debugfs_fini(void)
 {
 }
 
+static inline int hl_debugfs_device_init(struct hl_device *hdev)
+{
+	return 0;
+}
+
+static inline void hl_debugfs_device_fini(struct hl_device *hdev)
+{
+}
+
 static inline void hl_debugfs_add_device(struct hl_device *hdev)
 {
 }
diff --git a/drivers/accel/qaic/qaic_control.c b/drivers/accel/qaic/qaic_control.c
index 5c57f7b4494e..cfbc92da426f 100644
--- a/drivers/accel/qaic/qaic_control.c
+++ b/drivers/accel/qaic/qaic_control.c
@@ -14,6 +14,7 @@
 #include <linux/mm.h>
 #include <linux/moduleparam.h>
 #include <linux/mutex.h>
+#include <linux/overflow.h>
 #include <linux/pci.h>
 #include <linux/scatterlist.h>
 #include <linux/types.h>
@@ -366,7 +367,7 @@ static int encode_passthrough(struct qaic_device *qdev, void *trans, struct wrap
 	if (in_trans->hdr.len % 8 != 0)
 		return -EINVAL;
 
-	if (msg_hdr_len + in_trans->hdr.len > QAIC_MANAGE_EXT_MSG_LENGTH)
+	if (size_add(msg_hdr_len, in_trans->hdr.len) > QAIC_MANAGE_EXT_MSG_LENGTH)
 		return -ENOSPC;
 
 	trans_wrapper = add_wrapper(wrappers,
@@ -418,9 +419,12 @@ static int find_and_map_user_pages(struct qaic_device *qdev,
 	}
 
 	ret = get_user_pages_fast(xfer_start_addr, nr_pages, 0, page_list);
-	if (ret < 0 || ret != nr_pages) {
-		ret = -EFAULT;
+	if (ret < 0)
 		goto free_page_list;
+	if (ret != nr_pages) {
+		nr_pages = ret;
+		ret = -EFAULT;
+		goto put_pages;
 	}
 
 	sgt = kmalloc(sizeof(*sgt), GFP_KERNEL);
@@ -557,11 +561,8 @@ static int encode_dma(struct qaic_device *qdev, void *trans, struct wrapper_list
 	msg = &wrapper->msg;
 	msg_hdr_len = le32_to_cpu(msg->hdr.len);
 
-	if (msg_hdr_len > (UINT_MAX - QAIC_MANAGE_EXT_MSG_LENGTH))
-		return -EINVAL;
-
 	/* There should be enough space to hold at least one ASP entry. */
-	if (msg_hdr_len + sizeof(*out_trans) + sizeof(struct wire_addr_size_pair) >
+	if (size_add(msg_hdr_len, sizeof(*out_trans) + sizeof(struct wire_addr_size_pair)) >
 	    QAIC_MANAGE_EXT_MSG_LENGTH)
 		return -ENOMEM;
 
@@ -634,7 +635,7 @@ static int encode_activate(struct qaic_device *qdev, void *trans, struct wrapper
 	msg = &wrapper->msg;
 	msg_hdr_len = le32_to_cpu(msg->hdr.len);
 
-	if (msg_hdr_len + sizeof(*out_trans) > QAIC_MANAGE_MAX_MSG_LENGTH)
+	if (size_add(msg_hdr_len, sizeof(*out_trans)) > QAIC_MANAGE_MAX_MSG_LENGTH)
 		return -ENOSPC;
 
 	if (!in_trans->queue_size)
@@ -718,7 +719,7 @@ static int encode_status(struct qaic_device *qdev, void *trans, struct wrapper_l
 	msg = &wrapper->msg;
 	msg_hdr_len = le32_to_cpu(msg->hdr.len);
 
-	if (msg_hdr_len + in_trans->hdr.len > QAIC_MANAGE_MAX_MSG_LENGTH)
+	if (size_add(msg_hdr_len, in_trans->hdr.len) > QAIC_MANAGE_MAX_MSG_LENGTH)
 		return -ENOSPC;
 
 	trans_wrapper = add_wrapper(wrappers, sizeof(*trans_wrapper));
@@ -748,7 +749,8 @@ static int encode_message(struct qaic_device *qdev, struct manage_msg *user_msg,
 	int ret;
 	int i;
 
-	if (!user_msg->count) {
+	if (!user_msg->count ||
+	    user_msg->len < sizeof(*trans_hdr)) {
 		ret = -EINVAL;
 		goto out;
 	}
@@ -765,12 +767,13 @@ static int encode_message(struct qaic_device *qdev, struct manage_msg *user_msg,
 	}
 
 	for (i = 0; i < user_msg->count; ++i) {
-		if (user_len >= user_msg->len) {
+		if (user_len > user_msg->len - sizeof(*trans_hdr)) {
 			ret = -EINVAL;
 			break;
 		}
 		trans_hdr = (struct qaic_manage_trans_hdr *)(user_msg->data + user_len);
-		if (user_len + trans_hdr->len > user_msg->len) {
+		if (trans_hdr->len < sizeof(trans_hdr) ||
+		    size_add(user_len, trans_hdr->len) > user_msg->len) {
 			ret = -EINVAL;
 			break;
 		}
@@ -953,15 +956,23 @@ static int decode_message(struct qaic_device *qdev, struct manage_msg *user_msg,
 	int ret;
 	int i;
 
-	if (msg_hdr_len > QAIC_MANAGE_MAX_MSG_LENGTH)
+	if (msg_hdr_len < sizeof(*trans_hdr) ||
+	    msg_hdr_len > QAIC_MANAGE_MAX_MSG_LENGTH)
 		return -EINVAL;
 
 	user_msg->len = 0;
 	user_msg->count = le32_to_cpu(msg->hdr.count);
 
 	for (i = 0; i < user_msg->count; ++i) {
+		u32 hdr_len;
+
+		if (msg_len > msg_hdr_len - sizeof(*trans_hdr))
+			return -EINVAL;
+
 		trans_hdr = (struct wire_trans_hdr *)(msg->data + msg_len);
-		if (msg_len + le32_to_cpu(trans_hdr->len) > msg_hdr_len)
+		hdr_len = le32_to_cpu(trans_hdr->len);
+		if (hdr_len < sizeof(*trans_hdr) ||
+		    size_add(msg_len, hdr_len) > msg_hdr_len)
 			return -EINVAL;
 
 		switch (le32_to_cpu(trans_hdr->type)) {
diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c
index b6f71eb00866..38b4110378de 100644
--- a/drivers/dma-buf/dma-resv.c
+++ b/drivers/dma-buf/dma-resv.c
@@ -571,6 +571,7 @@ int dma_resv_get_fences(struct dma_resv *obj, enum dma_resv_usage usage,
 	dma_resv_for_each_fence_unlocked(&cursor, fence) {
 
 		if (dma_resv_iter_is_restarted(&cursor)) {
+			struct dma_fence **new_fences;
 			unsigned int count;
 
 			while (*num_fences)
@@ -579,13 +580,17 @@ int dma_resv_get_fences(struct dma_resv *obj, enum dma_resv_usage usage,
 			count = cursor.num_fences + 1;
 
 			/* Eventually re-allocate the array */
-			*fences = krealloc_array(*fences, count,
-						 sizeof(void *),
-						 GFP_KERNEL);
-			if (count && !*fences) {
+			new_fences = krealloc_array(*fences, count,
+						    sizeof(void *),
+						    GFP_KERNEL);
+			if (count && !new_fences) {
+				kfree(*fences);
+				*fences = NULL;
+				*num_fences = 0;
 				dma_resv_iter_end(&cursor);
 				return -ENOMEM;
 			}
+			*fences = new_fences;
 		}
 
 		(*fences)[(*num_fences)++] = dma_fence_get(fence);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
index a7f314ddd173..d34c3ef8f3ed 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
@@ -1709,7 +1709,8 @@ int amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu(
 			alloc_flags |= (flags & KFD_IOC_ALLOC_MEM_FLAGS_PUBLIC) ?
 			AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED : 0;
 		}
-		xcp_id = fpriv->xcp_id == ~0 ? 0 : fpriv->xcp_id;
+		xcp_id = fpriv->xcp_id == AMDGPU_XCP_NO_PARTITION ?
+					0 : fpriv->xcp_id;
 	} else if (flags & KFD_IOC_ALLOC_MEM_FLAGS_GTT) {
 		domain = alloc_domain = AMDGPU_GEM_DOMAIN_GTT;
 		alloc_flags = 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index cca5a495611f..12414a713256 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -1229,13 +1229,13 @@ int amdgpu_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
 		pasid = 0;
 	}
 
-	r = amdgpu_vm_init(adev, &fpriv->vm);
+	r = amdgpu_xcp_open_device(adev, fpriv, file_priv);
 	if (r)
 		goto error_pasid;
 
-	r = amdgpu_xcp_open_device(adev, fpriv, file_priv);
+	r = amdgpu_vm_init(adev, &fpriv->vm, fpriv->xcp_id);
 	if (r)
-		goto error_vm;
+		goto error_pasid;
 
 	r = amdgpu_vm_set_pasid(adev, &fpriv->vm, pasid);
 	if (r)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
index e9091ebfe230..f808841310fd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
@@ -1382,7 +1382,7 @@ int amdgpu_mes_self_test(struct amdgpu_device *adev)
 		goto error_pasid;
 	}
 
-	r = amdgpu_vm_init(adev, vm);
+	r = amdgpu_vm_init(adev, vm, -1);
 	if (r) {
 		DRM_ERROR("failed to initialize vm\n");
 		goto error_pasid;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c
index 53ff91fc6cf6..d0748bcfad16 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c
@@ -55,8 +55,9 @@ static enum hrtimer_restart amdgpu_vkms_vblank_simulate(struct hrtimer *timer)
 		DRM_WARN("%s: vblank timer overrun\n", __func__);
 
 	ret = drm_crtc_handle_vblank(crtc);
+	/* Don't queue timer again when vblank is disabled. */
 	if (!ret)
-		DRM_ERROR("amdgpu_vkms failure on handling vblank");
+		return HRTIMER_NORESTART;
 
 	return HRTIMER_RESTART;
 }
@@ -81,7 +82,7 @@ static void amdgpu_vkms_disable_vblank(struct drm_crtc *crtc)
 {
 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
 
-	hrtimer_cancel(&amdgpu_crtc->vblank_timer);
+	hrtimer_try_to_cancel(&amdgpu_crtc->vblank_timer);
 }
 
 static bool amdgpu_vkms_get_vblank_timestamp(struct drm_crtc *crtc,
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 291977b93b1d..ec1ec08d4058 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -2121,13 +2121,14 @@ long amdgpu_vm_wait_idle(struct amdgpu_vm *vm, long timeout)
  *
  * @adev: amdgpu_device pointer
  * @vm: requested vm
+ * @xcp_id: GPU partition selection id
  *
  * Init @vm fields.
  *
  * Returns:
  * 0 for success, error for failure.
  */
-int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm)
+int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm, int32_t xcp_id)
 {
 	struct amdgpu_bo *root_bo;
 	struct amdgpu_bo_vm *root;
@@ -2177,7 +2178,7 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm)
 	vm->evicting = false;
 
 	r = amdgpu_vm_pt_create(adev, vm, adev->vm_manager.root_level,
-				false, &root);
+				false, &root, xcp_id);
 	if (r)
 		goto error_free_delayed;
 	root_bo = &root->bo;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
index 9c85d494f2a2..ffac7413c657 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
@@ -392,7 +392,7 @@ int amdgpu_vm_set_pasid(struct amdgpu_device *adev, struct amdgpu_vm *vm,
 			u32 pasid);
 
 long amdgpu_vm_wait_idle(struct amdgpu_vm *vm, long timeout);
-int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm);
+int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm, int32_t xcp_id);
 int amdgpu_vm_make_compute(struct amdgpu_device *adev, struct amdgpu_vm *vm);
 void amdgpu_vm_release_compute(struct amdgpu_device *adev, struct amdgpu_vm *vm);
 void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm);
@@ -475,7 +475,8 @@ void amdgpu_vm_get_memory(struct amdgpu_vm *vm,
 int amdgpu_vm_pt_clear(struct amdgpu_device *adev, struct amdgpu_vm *vm,
 		       struct amdgpu_bo_vm *vmbo, bool immediate);
 int amdgpu_vm_pt_create(struct amdgpu_device *adev, struct amdgpu_vm *vm,
-			int level, bool immediate, struct amdgpu_bo_vm **vmbo);
+			int level, bool immediate, struct amdgpu_bo_vm **vmbo,
+			int32_t xcp_id);
 void amdgpu_vm_pt_free_root(struct amdgpu_device *adev, struct amdgpu_vm *vm);
 bool amdgpu_vm_pt_is_root_clean(struct amdgpu_device *adev,
 				struct amdgpu_vm *vm);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c
index dea1a64be44d..5431332bbdb8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c
@@ -498,11 +498,12 @@ exit:
  * @level: the page table level
  * @immediate: use a immediate update
  * @vmbo: pointer to the buffer object pointer
+ * @xcp_id: GPU partition id
  */
 int amdgpu_vm_pt_create(struct amdgpu_device *adev, struct amdgpu_vm *vm,
-			int level, bool immediate, struct amdgpu_bo_vm **vmbo)
+			int level, bool immediate, struct amdgpu_bo_vm **vmbo,
+			int32_t xcp_id)
 {
-	struct amdgpu_fpriv *fpriv = container_of(vm, struct amdgpu_fpriv, vm);
 	struct amdgpu_bo_param bp;
 	struct amdgpu_bo *bo;
 	struct dma_resv *resv;
@@ -535,7 +536,7 @@ int amdgpu_vm_pt_create(struct amdgpu_device *adev, struct amdgpu_vm *vm,
 
 	bp.type = ttm_bo_type_kernel;
 	bp.no_wait_gpu = immediate;
-	bp.xcp_id_plus1 = fpriv->xcp_id == ~0 ? 0 : fpriv->xcp_id + 1;
+	bp.xcp_id_plus1 = xcp_id + 1;
 
 	if (vm->root.bo)
 		bp.resv = vm->root.bo->tbo.base.resv;
@@ -561,7 +562,7 @@ int amdgpu_vm_pt_create(struct amdgpu_device *adev, struct amdgpu_vm *vm,
 	bp.type = ttm_bo_type_kernel;
 	bp.resv = bo->tbo.base.resv;
 	bp.bo_ptr_size = sizeof(struct amdgpu_bo);
-	bp.xcp_id_plus1 = fpriv->xcp_id == ~0 ? 0 : fpriv->xcp_id + 1;
+	bp.xcp_id_plus1 = xcp_id + 1;
 
 	r = amdgpu_bo_create(adev, &bp, &(*vmbo)->shadow);
 
@@ -606,7 +607,8 @@ static int amdgpu_vm_pt_alloc(struct amdgpu_device *adev,
 		return 0;
 
 	amdgpu_vm_eviction_unlock(vm);
-	r = amdgpu_vm_pt_create(adev, vm, cursor->level, immediate, &pt);
+	r = amdgpu_vm_pt_create(adev, vm, cursor->level, immediate, &pt,
+				vm->root.bo->xcp_id);
 	amdgpu_vm_eviction_lock(vm);
 	if (r)
 		return r;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c
index d175e862f222..9c9cca129498 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c
@@ -363,7 +363,7 @@ int amdgpu_xcp_open_device(struct amdgpu_device *adev,
 	if (!adev->xcp_mgr)
 		return 0;
 
-	fpriv->xcp_id = ~0;
+	fpriv->xcp_id = AMDGPU_XCP_NO_PARTITION;
 	for (i = 0; i < MAX_XCP; ++i) {
 		if (!adev->xcp_mgr->xcp[i].ddev)
 			break;
@@ -381,7 +381,7 @@ int amdgpu_xcp_open_device(struct amdgpu_device *adev,
 		}
 	}
 
-	fpriv->vm.mem_id = fpriv->xcp_id == ~0 ? -1 :
+	fpriv->vm.mem_id = fpriv->xcp_id == AMDGPU_XCP_NO_PARTITION ? -1 :
 				adev->xcp_mgr->xcp[fpriv->xcp_id].mem_id;
 	return 0;
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h
index 0f8026d64ea5..9a1036aeec2a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h
@@ -37,6 +37,8 @@
 #define AMDGPU_XCP_FL_NONE 0
 #define AMDGPU_XCP_FL_LOCKED (1 << 0)
 
+#define AMDGPU_XCP_NO_PARTITION (~0)
+
 struct amdgpu_fpriv;
 
 enum AMDGPU_XCP_IP_BLOCK {
diff --git a/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram_reg_init.c b/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram_reg_init.c
index 16471b81a1f5..72b629a78c62 100644
--- a/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram_reg_init.c
+++ b/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram_reg_init.c
@@ -68,7 +68,7 @@ static void aqua_vanjaram_set_xcp_id(struct amdgpu_device *adev,
 	enum AMDGPU_XCP_IP_BLOCK ip_blk;
 	uint32_t inst_mask;
 
-	ring->xcp_id = ~0;
+	ring->xcp_id = AMDGPU_XCP_NO_PARTITION;
 	if (adev->xcp_mgr->mode == AMDGPU_XCP_MODE_NONE)
 		return;
 
@@ -177,7 +177,7 @@ static int aqua_vanjaram_select_scheds(
 	u32 sel_xcp_id;
 	int i;
 
-	if (fpriv->xcp_id == ~0) {
+	if (fpriv->xcp_id == AMDGPU_XCP_NO_PARTITION) {
 		u32 least_ref_cnt = ~0;
 
 		fpriv->xcp_id = 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c
index f9cb0d2c89d1..e1a392bcea70 100644
--- a/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c
@@ -49,6 +49,7 @@ MODULE_FIRMWARE("amdgpu/psp_13_0_10_ta.bin");
 MODULE_FIRMWARE("amdgpu/psp_13_0_11_toc.bin");
 MODULE_FIRMWARE("amdgpu/psp_13_0_11_ta.bin");
 MODULE_FIRMWARE("amdgpu/psp_13_0_6_sos.bin");
+MODULE_FIRMWARE("amdgpu/psp_13_0_6_ta.bin");
 
 /* For large FW files the time to complete can be very long */
 #define USBC_PD_POLLING_LIMIT_S 240
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index ff0a217b9d56..0fa739fd6a9c 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -424,12 +424,12 @@ static void dm_pflip_high_irq(void *interrupt_params)
 
 	spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags);
 
-	if (amdgpu_crtc->pflip_status != AMDGPU_FLIP_SUBMITTED){
-		DC_LOG_PFLIP("amdgpu_crtc->pflip_status = %d !=AMDGPU_FLIP_SUBMITTED(%d) on crtc:%d[%p] \n",
-						 amdgpu_crtc->pflip_status,
-						 AMDGPU_FLIP_SUBMITTED,
-						 amdgpu_crtc->crtc_id,
-						 amdgpu_crtc);
+	if (amdgpu_crtc->pflip_status != AMDGPU_FLIP_SUBMITTED) {
+		DC_LOG_PFLIP("amdgpu_crtc->pflip_status = %d !=AMDGPU_FLIP_SUBMITTED(%d) on crtc:%d[%p]\n",
+			     amdgpu_crtc->pflip_status,
+			     AMDGPU_FLIP_SUBMITTED,
+			     amdgpu_crtc->crtc_id,
+			     amdgpu_crtc);
 		spin_unlock_irqrestore(&adev_to_drm(adev)->event_lock, flags);
 		return;
 	}
@@ -883,7 +883,7 @@ static int dm_set_powergating_state(void *handle,
 }
 
 /* Prototypes of private functions */
-static int dm_early_init(void* handle);
+static int dm_early_init(void *handle);
 
 /* Allocate memory for FBC compressed data  */
 static void amdgpu_dm_fbc_init(struct drm_connector *connector)
@@ -1282,7 +1282,7 @@ static void mmhub_read_system_context(struct amdgpu_device *adev, struct dc_phy_
 	pa_config->system_aperture.start_addr = (uint64_t)logical_addr_low << 18;
 	pa_config->system_aperture.end_addr = (uint64_t)logical_addr_high << 18;
 
-	pa_config->system_aperture.agp_base = (uint64_t)agp_base << 24 ;
+	pa_config->system_aperture.agp_base = (uint64_t)agp_base << 24;
 	pa_config->system_aperture.agp_bot = (uint64_t)agp_bot << 24;
 	pa_config->system_aperture.agp_top = (uint64_t)agp_top << 24;
 
@@ -1347,6 +1347,15 @@ static void dm_handle_hpd_rx_offload_work(struct work_struct *work)
 	if (amdgpu_in_reset(adev))
 		goto skip;
 
+	if (offload_work->data.bytes.device_service_irq.bits.UP_REQ_MSG_RDY ||
+		offload_work->data.bytes.device_service_irq.bits.DOWN_REP_MSG_RDY) {
+		dm_handle_mst_sideband_msg_ready_event(&aconnector->mst_mgr, DOWN_OR_UP_MSG_RDY_EVENT);
+		spin_lock_irqsave(&offload_work->offload_wq->offload_lock, flags);
+		offload_work->offload_wq->is_handling_mst_msg_rdy_event = false;
+		spin_unlock_irqrestore(&offload_work->offload_wq->offload_lock, flags);
+		goto skip;
+	}
+
 	mutex_lock(&adev->dm.dc_lock);
 	if (offload_work->data.bytes.device_service_irq.bits.AUTOMATED_TEST) {
 		dc_link_dp_handle_automated_test(dc_link);
@@ -1365,8 +1374,7 @@ static void dm_handle_hpd_rx_offload_work(struct work_struct *work)
 		DP_TEST_RESPONSE,
 		&test_response.raw,
 		sizeof(test_response));
-	}
-	else if ((dc_link->connector_signal != SIGNAL_TYPE_EDP) &&
+	} else if ((dc_link->connector_signal != SIGNAL_TYPE_EDP) &&
 			dc_link_check_link_loss_status(dc_link, &offload_work->data) &&
 			dc_link_dp_allow_hpd_rx_irq(dc_link)) {
 		/* offload_work->data is from handle_hpd_rx_irq->
@@ -1554,7 +1562,7 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
 	mutex_init(&adev->dm.dc_lock);
 	mutex_init(&adev->dm.audio_lock);
 
-	if(amdgpu_dm_irq_init(adev)) {
+	if (amdgpu_dm_irq_init(adev)) {
 		DRM_ERROR("amdgpu: failed to initialize DM IRQ support.\n");
 		goto error;
 	}
@@ -1696,9 +1704,8 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
 	if (amdgpu_dc_debug_mask & DC_DISABLE_STUTTER)
 		adev->dm.dc->debug.disable_stutter = true;
 
-	if (amdgpu_dc_debug_mask & DC_DISABLE_DSC) {
+	if (amdgpu_dc_debug_mask & DC_DISABLE_DSC)
 		adev->dm.dc->debug.disable_dsc = true;
-	}
 
 	if (amdgpu_dc_debug_mask & DC_DISABLE_CLOCK_GATING)
 		adev->dm.dc->debug.disable_clock_gate = true;
@@ -1942,8 +1949,6 @@ static void amdgpu_dm_fini(struct amdgpu_device *adev)
 	mutex_destroy(&adev->dm.audio_lock);
 	mutex_destroy(&adev->dm.dc_lock);
 	mutex_destroy(&adev->dm.dpia_aux_lock);
-
-	return;
 }
 
 static int load_dmcu_fw(struct amdgpu_device *adev)
@@ -1952,7 +1957,7 @@ static int load_dmcu_fw(struct amdgpu_device *adev)
 	int r;
 	const struct dmcu_firmware_header_v1_0 *hdr;
 
-	switch(adev->asic_type) {
+	switch (adev->asic_type) {
 #if defined(CONFIG_DRM_AMD_DC_SI)
 	case CHIP_TAHITI:
 	case CHIP_PITCAIRN:
@@ -2709,7 +2714,7 @@ static void dm_gpureset_commit_state(struct dc_state *dc_state,
 		struct dc_scaling_info scaling_infos[MAX_SURFACES];
 		struct dc_flip_addrs flip_addrs[MAX_SURFACES];
 		struct dc_stream_update stream_update;
-	} * bundle;
+	} *bundle;
 	int k, m;
 
 	bundle = kzalloc(sizeof(*bundle), GFP_KERNEL);
@@ -2739,8 +2744,6 @@ static void dm_gpureset_commit_state(struct dc_state *dc_state,
 
 cleanup:
 	kfree(bundle);
-
-	return;
 }
 
 static int dm_resume(void *handle)
@@ -2954,8 +2957,7 @@ static const struct amd_ip_funcs amdgpu_dm_funcs = {
 	.set_powergating_state = dm_set_powergating_state,
 };
 
-const struct amdgpu_ip_block_version dm_ip_block =
-{
+const struct amdgpu_ip_block_version dm_ip_block = {
 	.type = AMD_IP_BLOCK_TYPE_DCE,
 	.major = 1,
 	.minor = 0,
@@ -3000,9 +3002,12 @@ static void update_connector_ext_caps(struct amdgpu_dm_connector *aconnector)
 	caps->ext_caps = &aconnector->dc_link->dpcd_sink_ext_caps;
 	caps->aux_support = false;
 
-	if (caps->ext_caps->bits.oled == 1 /*||
-	    caps->ext_caps->bits.sdr_aux_backlight_control == 1 ||
-	    caps->ext_caps->bits.hdr_aux_backlight_control == 1*/)
+	if (caps->ext_caps->bits.oled == 1
+	    /*
+	     * ||
+	     * caps->ext_caps->bits.sdr_aux_backlight_control == 1 ||
+	     * caps->ext_caps->bits.hdr_aux_backlight_control == 1
+	     */)
 		caps->aux_support = true;
 
 	if (amdgpu_backlight == 0)
@@ -3236,86 +3241,6 @@ static void handle_hpd_irq(void *param)
 
 }
 
-static void dm_handle_mst_sideband_msg(struct amdgpu_dm_connector *aconnector)
-{
-	u8 esi[DP_PSR_ERROR_STATUS - DP_SINK_COUNT_ESI] = { 0 };
-	u8 dret;
-	bool new_irq_handled = false;
-	int dpcd_addr;
-	int dpcd_bytes_to_read;
-
-	const int max_process_count = 30;
-	int process_count = 0;
-
-	const struct dc_link_status *link_status = dc_link_get_status(aconnector->dc_link);
-
-	if (link_status->dpcd_caps->dpcd_rev.raw < 0x12) {
-		dpcd_bytes_to_read = DP_LANE0_1_STATUS - DP_SINK_COUNT;
-		/* DPCD 0x200 - 0x201 for downstream IRQ */
-		dpcd_addr = DP_SINK_COUNT;
-	} else {
-		dpcd_bytes_to_read = DP_PSR_ERROR_STATUS - DP_SINK_COUNT_ESI;
-		/* DPCD 0x2002 - 0x2005 for downstream IRQ */
-		dpcd_addr = DP_SINK_COUNT_ESI;
-	}
-
-	dret = drm_dp_dpcd_read(
-		&aconnector->dm_dp_aux.aux,
-		dpcd_addr,
-		esi,
-		dpcd_bytes_to_read);
-
-	while (dret == dpcd_bytes_to_read &&
-		process_count < max_process_count) {
-		u8 ack[DP_PSR_ERROR_STATUS - DP_SINK_COUNT_ESI] = {};
-		u8 retry;
-		dret = 0;
-
-		process_count++;
-
-		DRM_DEBUG_DRIVER("ESI %02x %02x %02x\n", esi[0], esi[1], esi[2]);
-		/* handle HPD short pulse irq */
-		if (aconnector->mst_mgr.mst_state)
-			drm_dp_mst_hpd_irq_handle_event(&aconnector->mst_mgr,
-							esi,
-							ack,
-							&new_irq_handled);
-
-		if (new_irq_handled) {
-			/* ACK at DPCD to notify down stream */
-			for (retry = 0; retry < 3; retry++) {
-				ssize_t wret;
-
-				wret = drm_dp_dpcd_writeb(&aconnector->dm_dp_aux.aux,
-							  dpcd_addr + 1,
-							  ack[1]);
-				if (wret == 1)
-					break;
-			}
-
-			if (retry == 3) {
-				DRM_ERROR("Failed to ack MST event.\n");
-				return;
-			}
-
-			drm_dp_mst_hpd_irq_send_new_request(&aconnector->mst_mgr);
-			/* check if there is new irq to be handled */
-			dret = drm_dp_dpcd_read(
-				&aconnector->dm_dp_aux.aux,
-				dpcd_addr,
-				esi,
-				dpcd_bytes_to_read);
-
-			new_irq_handled = false;
-		} else {
-			break;
-		}
-	}
-
-	if (process_count == max_process_count)
-		DRM_DEBUG_DRIVER("Loop exceeded max iterations\n");
-}
-
 static void schedule_hpd_rx_offload_work(struct hpd_rx_irq_offload_work_queue *offload_wq,
 							union hpd_irq_data hpd_irq_data)
 {
@@ -3377,7 +3302,23 @@ static void handle_hpd_rx_irq(void *param)
 	if (dc_link_dp_allow_hpd_rx_irq(dc_link)) {
 		if (hpd_irq_data.bytes.device_service_irq.bits.UP_REQ_MSG_RDY ||
 			hpd_irq_data.bytes.device_service_irq.bits.DOWN_REP_MSG_RDY) {
-			dm_handle_mst_sideband_msg(aconnector);
+			bool skip = false;
+
+			/*
+			 * DOWN_REP_MSG_RDY is also handled by polling method
+			 * mgr->cbs->poll_hpd_irq()
+			 */
+			spin_lock(&offload_wq->offload_lock);
+			skip = offload_wq->is_handling_mst_msg_rdy_event;
+
+			if (!skip)
+				offload_wq->is_handling_mst_msg_rdy_event = true;
+
+			spin_unlock(&offload_wq->offload_lock);
+
+			if (!skip)
+				schedule_hpd_rx_offload_work(offload_wq, hpd_irq_data);
+
 			goto out;
 		}
 
@@ -3468,7 +3409,7 @@ static void register_hpd_handlers(struct amdgpu_device *adev)
 		aconnector = to_amdgpu_dm_connector(connector);
 		dc_link = aconnector->dc_link;
 
-		if (DC_IRQ_SOURCE_INVALID != dc_link->irq_source_hpd) {
+		if (dc_link->irq_source_hpd != DC_IRQ_SOURCE_INVALID) {
 			int_params.int_context = INTERRUPT_LOW_IRQ_CONTEXT;
 			int_params.irq_source = dc_link->irq_source_hpd;
 
@@ -3477,7 +3418,7 @@ static void register_hpd_handlers(struct amdgpu_device *adev)
 					(void *) aconnector);
 		}
 
-		if (DC_IRQ_SOURCE_INVALID != dc_link->irq_source_hpd_rx) {
+		if (dc_link->irq_source_hpd_rx != DC_IRQ_SOURCE_INVALID) {
 
 			/* Also register for DP short pulse (hpd_rx). */
 			int_params.int_context = INTERRUPT_LOW_IRQ_CONTEXT;
@@ -3486,11 +3427,11 @@ static void register_hpd_handlers(struct amdgpu_device *adev)
 			amdgpu_dm_irq_register_interrupt(adev, &int_params,
 					handle_hpd_rx_irq,
 					(void *) aconnector);
-
-			if (adev->dm.hpd_rx_offload_wq)
-				adev->dm.hpd_rx_offload_wq[dc_link->link_index].aconnector =
-					aconnector;
 		}
+
+		if (adev->dm.hpd_rx_offload_wq)
+			adev->dm.hpd_rx_offload_wq[connector->index].aconnector =
+				aconnector;
 	}
 }
 
@@ -3503,7 +3444,7 @@ static int dce60_register_irq_handlers(struct amdgpu_device *adev)
 	struct dc_interrupt_params int_params = {0};
 	int r;
 	int i;
-	unsigned client_id = AMDGPU_IRQ_CLIENTID_LEGACY;
+	unsigned int client_id = AMDGPU_IRQ_CLIENTID_LEGACY;
 
 	int_params.requested_polarity = INTERRUPT_POLARITY_DEFAULT;
 	int_params.current_polarity = INTERRUPT_POLARITY_DEFAULT;
@@ -3517,11 +3458,12 @@ static int dce60_register_irq_handlers(struct amdgpu_device *adev)
 	 *    Base driver will call amdgpu_dm_irq_handler() for ALL interrupts
 	 *    coming from DC hardware.
 	 *    amdgpu_dm_irq_handler() will re-direct the interrupt to DC
-	 *    for acknowledging and handling. */
+	 *    for acknowledging and handling.
+	 */
 
 	/* Use VBLANK interrupt */
 	for (i = 0; i < adev->mode_info.num_crtc; i++) {
-		r = amdgpu_irq_add_id(adev, client_id, i+1 , &adev->crtc_irq);
+		r = amdgpu_irq_add_id(adev, client_id, i + 1, &adev->crtc_irq);
 		if (r) {
 			DRM_ERROR("Failed to add crtc irq id!\n");
 			return r;
@@ -3529,7 +3471,7 @@ static int dce60_register_irq_handlers(struct amdgpu_device *adev)
 
 		int_params.int_context = INTERRUPT_HIGH_IRQ_CONTEXT;
 		int_params.irq_source =
-			dc_interrupt_to_irq_source(dc, i+1 , 0);
+			dc_interrupt_to_irq_source(dc, i + 1, 0);
 
 		c_irq_params = &adev->dm.vblank_params[int_params.irq_source - DC_IRQ_SOURCE_VBLANK1];
 
@@ -3585,7 +3527,7 @@ static int dce110_register_irq_handlers(struct amdgpu_device *adev)
 	struct dc_interrupt_params int_params = {0};
 	int r;
 	int i;
-	unsigned client_id = AMDGPU_IRQ_CLIENTID_LEGACY;
+	unsigned int client_id = AMDGPU_IRQ_CLIENTID_LEGACY;
 
 	if (adev->family >= AMDGPU_FAMILY_AI)
 		client_id = SOC15_IH_CLIENTID_DCE;
@@ -3602,7 +3544,8 @@ static int dce110_register_irq_handlers(struct amdgpu_device *adev)
 	 *    Base driver will call amdgpu_dm_irq_handler() for ALL interrupts
 	 *    coming from DC hardware.
 	 *    amdgpu_dm_irq_handler() will re-direct the interrupt to DC
-	 *    for acknowledging and handling. */
+	 *    for acknowledging and handling.
+	 */
 
 	/* Use VBLANK interrupt */
 	for (i = VISLANDS30_IV_SRCID_D1_VERTICAL_INTERRUPT0; i <= VISLANDS30_IV_SRCID_D6_VERTICAL_INTERRUPT0; i++) {
@@ -4049,7 +3992,7 @@ static void amdgpu_dm_update_backlight_caps(struct amdgpu_display_manager *dm,
 }
 
 static int get_brightness_range(const struct amdgpu_dm_backlight_caps *caps,
-				unsigned *min, unsigned *max)
+				unsigned int *min, unsigned int *max)
 {
 	if (!caps)
 		return 0;
@@ -4069,7 +4012,7 @@ static int get_brightness_range(const struct amdgpu_dm_backlight_caps *caps,
 static u32 convert_brightness_from_user(const struct amdgpu_dm_backlight_caps *caps,
 					uint32_t brightness)
 {
-	unsigned min, max;
+	unsigned int min, max;
 
 	if (!get_brightness_range(caps, &min, &max))
 		return brightness;
@@ -4082,7 +4025,7 @@ static u32 convert_brightness_from_user(const struct amdgpu_dm_backlight_caps *c
 static u32 convert_brightness_to_user(const struct amdgpu_dm_backlight_caps *caps,
 				      uint32_t brightness)
 {
-	unsigned min, max;
+	unsigned int min, max;
 
 	if (!get_brightness_range(caps, &min, &max))
 		return brightness;
@@ -4562,7 +4505,6 @@ fail:
 static void amdgpu_dm_destroy_drm_device(struct amdgpu_display_manager *dm)
 {
 	drm_atomic_private_obj_fini(&dm->atomic_obj);
-	return;
 }
 
 /******************************************************************************
@@ -5394,6 +5336,7 @@ static bool adjust_colour_depth_from_display_info(
 {
 	enum dc_color_depth depth = timing_out->display_color_depth;
 	int normalized_clk;
+
 	do {
 		normalized_clk = timing_out->pix_clk_100hz / 10;
 		/* YCbCr 4:2:0 requires additional adjustment of 1/2 */
@@ -5609,6 +5552,7 @@ create_fake_sink(struct amdgpu_dm_connector *aconnector)
 {
 	struct dc_sink_init_data sink_init_data = { 0 };
 	struct dc_sink *sink = NULL;
+
 	sink_init_data.link = aconnector->dc_link;
 	sink_init_data.sink_signal = aconnector->dc_link->connector_signal;
 
@@ -5732,7 +5676,7 @@ get_highest_refresh_rate_mode(struct amdgpu_dm_connector *aconnector,
 		return &aconnector->freesync_vid_base;
 
 	/* Find the preferred mode */
-	list_for_each_entry (m, list_head, head) {
+	list_for_each_entry(m, list_head, head) {
 		if (m->type & DRM_MODE_TYPE_PREFERRED) {
 			m_pref = m;
 			break;
@@ -5756,7 +5700,7 @@ get_highest_refresh_rate_mode(struct amdgpu_dm_connector *aconnector,
 	 * For some monitors, preferred mode is not the mode with highest
 	 * supported refresh rate.
 	 */
-	list_for_each_entry (m, list_head, head) {
+	list_for_each_entry(m, list_head, head) {
 		current_refresh  = drm_mode_vrefresh(m);
 
 		if (m->hdisplay == m_pref->hdisplay &&
@@ -6028,7 +5972,7 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
 		 * This may not be an error, the use case is when we have no
 		 * usermode calls to reset and set mode upon hotplug. In this
 		 * case, we call set mode ourselves to restore the previous mode
-		 * and the modelist may not be filled in in time.
+		 * and the modelist may not be filled in time.
 		 */
 		DRM_DEBUG_DRIVER("No preferred mode found\n");
 	} else {
@@ -6051,9 +5995,9 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
 		drm_mode_set_crtcinfo(&mode, 0);
 
 	/*
-	* If scaling is enabled and refresh rate didn't change
-	* we copy the vic and polarities of the old timings
-	*/
+	 * If scaling is enabled and refresh rate didn't change
+	 * we copy the vic and polarities of the old timings
+	 */
 	if (!scale || mode_refresh != preferred_refresh)
 		fill_stream_properties_from_drm_display_mode(
 			stream, &mode, &aconnector->base, con_state, NULL,
@@ -6817,6 +6761,7 @@ static int dm_encoder_helper_atomic_check(struct drm_encoder *encoder,
 
 	if (!state->duplicated) {
 		int max_bpc = conn_state->max_requested_bpc;
+
 		is_y420 = drm_mode_is_420_also(&connector->display_info, adjusted_mode) &&
 			  aconnector->force_yuv420_output;
 		color_depth = convert_color_depth_from_display_info(connector,
@@ -7135,7 +7080,7 @@ static bool is_duplicate_mode(struct amdgpu_dm_connector *aconnector,
 {
 	struct drm_display_mode *m;
 
-	list_for_each_entry (m, &aconnector->base.probed_modes, head) {
+	list_for_each_entry(m, &aconnector->base.probed_modes, head) {
 		if (drm_mode_equal(m, mode))
 			return true;
 	}
@@ -7295,6 +7240,7 @@ void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
 	aconnector->as_type = ADAPTIVE_SYNC_TYPE_NONE;
 	memset(&aconnector->vsdb_info, 0, sizeof(aconnector->vsdb_info));
 	mutex_init(&aconnector->hpd_lock);
+	mutex_init(&aconnector->handle_mst_msg_ready);
 
 	/*
 	 * configure support HPD hot plug connector_>polled default value is 0
@@ -7454,7 +7400,6 @@ static int amdgpu_dm_connector_init(struct amdgpu_display_manager *dm,
 
 	link->priv = aconnector;
 
-	DRM_DEBUG_DRIVER("%s()\n", __func__);
 
 	i2c = create_i2c(link->ddc, link->link_index, &res);
 	if (!i2c) {
@@ -8125,7 +8070,15 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
 		 * Only allow immediate flips for fast updates that don't
 		 * change memory domain, FB pitch, DCC state, rotation or
 		 * mirroring.
+		 *
+		 * dm_crtc_helper_atomic_check() only accepts async flips with
+		 * fast updates.
 		 */
+		if (crtc->state->async_flip &&
+		    acrtc_state->update_type != UPDATE_TYPE_FAST)
+			drm_warn_once(state->dev,
+				      "[PLANE:%d:%s] async flip with non-fast update\n",
+				      plane->base.id, plane->name);
 		bundle->flip_addrs[planes_count].flip_immediate =
 			crtc->state->async_flip &&
 			acrtc_state->update_type == UPDATE_TYPE_FAST &&
@@ -8168,8 +8121,7 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
 			 * DRI3/Present extension with defined target_msc.
 			 */
 			last_flip_vblank = amdgpu_get_vblank_counter_kms(pcrtc);
-		}
-		else {
+		} else {
 			/* For variable refresh rate mode only:
 			 * Get vblank of last completed flip to avoid > 1 vrr
 			 * flips per video frame by use of throttling, but allow
@@ -8502,8 +8454,8 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
 		dc_resource_state_copy_construct_current(dm->dc, dc_state);
 	}
 
-	for_each_oldnew_crtc_in_state (state, crtc, old_crtc_state,
-				       new_crtc_state, i) {
+	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
+				      new_crtc_state, i) {
 		struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
 
 		dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
@@ -8526,9 +8478,7 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
 		dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
 
 		drm_dbg_state(state->dev,
-			"amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, "
-			"planes_changed:%d, mode_changed:%d,active_changed:%d,"
-			"connectors_changed:%d\n",
+			"amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, planes_changed:%d, mode_changed:%d,active_changed:%d,connectors_changed:%d\n",
 			acrtc->crtc_id,
 			new_crtc_state->enable,
 			new_crtc_state->active,
@@ -9104,8 +9054,8 @@ static int do_aquire_global_lock(struct drm_device *dev,
 					&commit->flip_done, 10*HZ);
 
 		if (ret == 0)
-			DRM_ERROR("[CRTC:%d:%s] hw_done or flip_done "
-				  "timed out\n", crtc->base.id, crtc->name);
+			DRM_ERROR("[CRTC:%d:%s] hw_done or flip_done timed out\n",
+				  crtc->base.id, crtc->name);
 
 		drm_crtc_commit_put(commit);
 	}
@@ -9190,7 +9140,8 @@ is_timing_unchanged_for_freesync(struct drm_crtc_state *old_crtc_state,
 	return false;
 }
 
-static void set_freesync_fixed_config(struct dm_crtc_state *dm_new_crtc_state) {
+static void set_freesync_fixed_config(struct dm_crtc_state *dm_new_crtc_state)
+{
 	u64 num, den, res;
 	struct drm_crtc_state *new_crtc_state = &dm_new_crtc_state->base;
 
@@ -9312,9 +9263,7 @@ static int dm_update_crtc_state(struct amdgpu_display_manager *dm,
 		goto skip_modeset;
 
 	drm_dbg_state(state->dev,
-		"amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, "
-		"planes_changed:%d, mode_changed:%d,active_changed:%d,"
-		"connectors_changed:%d\n",
+		"amdgpu_crtc id:%d crtc_state_flags: enable:%d, active:%d, planes_changed:%d, mode_changed:%d,active_changed:%d,connectors_changed:%d\n",
 		acrtc->crtc_id,
 		new_crtc_state->enable,
 		new_crtc_state->active,
@@ -9343,8 +9292,7 @@ static int dm_update_crtc_state(struct amdgpu_display_manager *dm,
 						     old_crtc_state)) {
 			new_crtc_state->mode_changed = false;
 			DRM_DEBUG_DRIVER(
-				"Mode change not required for front porch change, "
-				"setting mode_changed to %d",
+				"Mode change not required for front porch change, setting mode_changed to %d",
 				new_crtc_state->mode_changed);
 
 			set_freesync_fixed_config(dm_new_crtc_state);
@@ -9356,9 +9304,8 @@ static int dm_update_crtc_state(struct amdgpu_display_manager *dm,
 			struct drm_display_mode *high_mode;
 
 			high_mode = get_highest_refresh_rate_mode(aconnector, false);
-			if (!drm_mode_equal(&new_crtc_state->mode, high_mode)) {
+			if (!drm_mode_equal(&new_crtc_state->mode, high_mode))
 				set_freesync_fixed_config(dm_new_crtc_state);
-			}
 		}
 
 		ret = dm_atomic_get_state(state, &dm_state);
@@ -9526,6 +9473,7 @@ static bool should_reset_plane(struct drm_atomic_state *state,
 	 */
 	for_each_oldnew_plane_in_state(state, other, old_other_state, new_other_state, i) {
 		struct amdgpu_framebuffer *old_afb, *new_afb;
+
 		if (other->type == DRM_PLANE_TYPE_CURSOR)
 			continue;
 
@@ -9624,11 +9572,12 @@ static int dm_check_cursor_fb(struct amdgpu_crtc *new_acrtc,
 	}
 
 	/* Core DRM takes care of checking FB modifiers, so we only need to
-	 * check tiling flags when the FB doesn't have a modifier. */
+	 * check tiling flags when the FB doesn't have a modifier.
+	 */
 	if (!(fb->flags & DRM_MODE_FB_MODIFIERS)) {
 		if (adev->family < AMDGPU_FAMILY_AI) {
 			linear = AMDGPU_TILING_GET(afb->tiling_flags, ARRAY_MODE) != DC_ARRAY_2D_TILED_THIN1 &&
-			         AMDGPU_TILING_GET(afb->tiling_flags, ARRAY_MODE) != DC_ARRAY_1D_TILED_THIN1 &&
+				 AMDGPU_TILING_GET(afb->tiling_flags, ARRAY_MODE) != DC_ARRAY_1D_TILED_THIN1 &&
 				 AMDGPU_TILING_GET(afb->tiling_flags, MICRO_TILE_MODE) == 0;
 		} else {
 			linear = AMDGPU_TILING_GET(afb->tiling_flags, SWIZZLE_MODE) == 0;
@@ -9850,12 +9799,12 @@ static int dm_check_crtc_cursor(struct drm_atomic_state *state,
 	/* On DCE and DCN there is no dedicated hardware cursor plane. We get a
 	 * cursor per pipe but it's going to inherit the scaling and
 	 * positioning from the underlying pipe. Check the cursor plane's
-	 * blending properties match the underlying planes'. */
+	 * blending properties match the underlying planes'.
+	 */
 
 	new_cursor_state = drm_atomic_get_new_plane_state(state, cursor);
-	if (!new_cursor_state || !new_cursor_state->fb) {
+	if (!new_cursor_state || !new_cursor_state->fb)
 		return 0;
-	}
 
 	dm_get_oriented_plane_size(new_cursor_state, &cursor_src_w, &cursor_src_h);
 	cursor_scale_w = new_cursor_state->crtc_w * 1000 / cursor_src_w;
@@ -9900,6 +9849,7 @@ static int add_affected_mst_dsc_crtcs(struct drm_atomic_state *state, struct drm
 	struct drm_connector_state *conn_state, *old_conn_state;
 	struct amdgpu_dm_connector *aconnector = NULL;
 	int i;
+
 	for_each_oldnew_connector_in_state(state, connector, old_conn_state, conn_state, i) {
 		if (!conn_state->crtc)
 			conn_state = old_conn_state;
@@ -10334,7 +10284,7 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
 	}
 
 	/* Store the overall update type for use later in atomic check. */
-	for_each_new_crtc_in_state (state, crtc, new_crtc_state, i) {
+	for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
 		struct dm_crtc_state *dm_new_crtc_state =
 			to_dm_crtc_state(new_crtc_state);
 
@@ -10356,7 +10306,7 @@ fail:
 	else if (ret == -EINTR || ret == -EAGAIN || ret == -ERESTARTSYS)
 		DRM_DEBUG_DRIVER("Atomic check stopped due to signal.\n");
 	else
-		DRM_DEBUG_DRIVER("Atomic check failed with err: %d \n", ret);
+		DRM_DEBUG_DRIVER("Atomic check failed with err: %d\n", ret);
 
 	trace_amdgpu_dm_atomic_check_finish(state, ret);
 
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
index 4561f55afa99..9fb5bb3a75a7 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
@@ -194,6 +194,11 @@ struct hpd_rx_irq_offload_work_queue {
 	 * we're handling link loss
 	 */
 	bool is_handling_link_loss;
+	/**
+	 * @is_handling_mst_msg_rdy_event: Used to prevent inserting mst message
+	 * ready event when we're already handling mst message ready event
+	 */
+	bool is_handling_mst_msg_rdy_event;
 	/**
 	 * @aconnector: The aconnector that this work queue is attached to
 	 */
@@ -638,6 +643,8 @@ struct amdgpu_dm_connector {
 	struct drm_dp_mst_port *mst_output_port;
 	struct amdgpu_dm_connector *mst_root;
 	struct drm_dp_aux *dsc_aux;
+	struct mutex handle_mst_msg_ready;
+
 	/* TODO see if we can merge with ddc_bus or make a dm_connector */
 	struct amdgpu_i2c_adapter *i2c;
 
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
index 440fc0869a34..30d4c6fd95f5 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
@@ -398,6 +398,18 @@ static int dm_crtc_helper_atomic_check(struct drm_crtc *crtc,
 		return -EINVAL;
 	}
 
+	/*
+	 * Only allow async flips for fast updates that don't change the FB
+	 * pitch, the DCC state, rotation, etc.
+	 */
+	if (crtc_state->async_flip &&
+	    dm_crtc_state->update_type != UPDATE_TYPE_FAST) {
+		drm_dbg_atomic(crtc->dev,
+			       "[CRTC:%d:%s] async flips are only supported for fast updates\n",
+			       crtc->base.id, crtc->name);
+		return -EINVAL;
+	}
+
 	/* In some use cases, like reset, no stream is attached */
 	if (!dm_crtc_state->stream)
 		return 0;
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index 46d0a8f57e55..888e80f498e9 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -619,8 +619,118 @@ dm_dp_add_mst_connector(struct drm_dp_mst_topology_mgr *mgr,
 	return connector;
 }
 
+void dm_handle_mst_sideband_msg_ready_event(
+	struct drm_dp_mst_topology_mgr *mgr,
+	enum mst_msg_ready_type msg_rdy_type)
+{
+	uint8_t esi[DP_PSR_ERROR_STATUS - DP_SINK_COUNT_ESI] = { 0 };
+	uint8_t dret;
+	bool new_irq_handled = false;
+	int dpcd_addr;
+	uint8_t dpcd_bytes_to_read;
+	const uint8_t max_process_count = 30;
+	uint8_t process_count = 0;
+	u8 retry;
+	struct amdgpu_dm_connector *aconnector =
+			container_of(mgr, struct amdgpu_dm_connector, mst_mgr);
+
+
+	const struct dc_link_status *link_status = dc_link_get_status(aconnector->dc_link);
+
+	if (link_status->dpcd_caps->dpcd_rev.raw < 0x12) {
+		dpcd_bytes_to_read = DP_LANE0_1_STATUS - DP_SINK_COUNT;
+		/* DPCD 0x200 - 0x201 for downstream IRQ */
+		dpcd_addr = DP_SINK_COUNT;
+	} else {
+		dpcd_bytes_to_read = DP_PSR_ERROR_STATUS - DP_SINK_COUNT_ESI;
+		/* DPCD 0x2002 - 0x2005 for downstream IRQ */
+		dpcd_addr = DP_SINK_COUNT_ESI;
+	}
+
+	mutex_lock(&aconnector->handle_mst_msg_ready);
+
+	while (process_count < max_process_count) {
+		u8 ack[DP_PSR_ERROR_STATUS - DP_SINK_COUNT_ESI] = {};
+
+		process_count++;
+
+		dret = drm_dp_dpcd_read(
+			&aconnector->dm_dp_aux.aux,
+			dpcd_addr,
+			esi,
+			dpcd_bytes_to_read);
+
+		if (dret != dpcd_bytes_to_read) {
+			DRM_DEBUG_KMS("DPCD read and acked number is not as expected!");
+			break;
+		}
+
+		DRM_DEBUG_DRIVER("ESI %02x %02x %02x\n", esi[0], esi[1], esi[2]);
+
+		switch (msg_rdy_type) {
+		case DOWN_REP_MSG_RDY_EVENT:
+			/* Only handle DOWN_REP_MSG_RDY case*/
+			esi[1] &= DP_DOWN_REP_MSG_RDY;
+			break;
+		case UP_REQ_MSG_RDY_EVENT:
+			/* Only handle UP_REQ_MSG_RDY case*/
+			esi[1] &= DP_UP_REQ_MSG_RDY;
+			break;
+		default:
+			/* Handle both cases*/
+			esi[1] &= (DP_DOWN_REP_MSG_RDY | DP_UP_REQ_MSG_RDY);
+			break;
+		}
+
+		if (!esi[1])
+			break;
+
+		/* handle MST irq */
+		if (aconnector->mst_mgr.mst_state)
+			drm_dp_mst_hpd_irq_handle_event(&aconnector->mst_mgr,
+						 esi,
+						 ack,
+						 &new_irq_handled);
+
+		if (new_irq_handled) {
+			/* ACK at DPCD to notify down stream */
+			for (retry = 0; retry < 3; retry++) {
+				ssize_t wret;
+
+				wret = drm_dp_dpcd_writeb(&aconnector->dm_dp_aux.aux,
+							  dpcd_addr + 1,
+							  ack[1]);
+				if (wret == 1)
+					break;
+			}
+
+			if (retry == 3) {
+				DRM_ERROR("Failed to ack MST event.\n");
+				return;
+			}
+
+			drm_dp_mst_hpd_irq_send_new_request(&aconnector->mst_mgr);
+
+			new_irq_handled = false;
+		} else {
+			break;
+		}
+	}
+
+	mutex_unlock(&aconnector->handle_mst_msg_ready);
+
+	if (process_count == max_process_count)
+		DRM_DEBUG_DRIVER("Loop exceeded max iterations\n");
+}
+
+static void dm_handle_mst_down_rep_msg_ready(struct drm_dp_mst_topology_mgr *mgr)
+{
+	dm_handle_mst_sideband_msg_ready_event(mgr, DOWN_REP_MSG_RDY_EVENT);
+}
+
 static const struct drm_dp_mst_topology_cbs dm_mst_cbs = {
 	.add_connector = dm_dp_add_mst_connector,
+	.poll_hpd_irq = dm_handle_mst_down_rep_msg_ready,
 };
 
 void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm,
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
index 1e4ede1e57ab..37c820ab0fdb 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
@@ -49,6 +49,13 @@
 #define PBN_FEC_OVERHEAD_MULTIPLIER_8B_10B	1031
 #define PBN_FEC_OVERHEAD_MULTIPLIER_128B_132B	1000
 
+enum mst_msg_ready_type {
+	NONE_MSG_RDY_EVENT = 0,
+	DOWN_REP_MSG_RDY_EVENT = 1,
+	UP_REQ_MSG_RDY_EVENT = 2,
+	DOWN_OR_UP_MSG_RDY_EVENT = 3
+};
+
 struct amdgpu_display_manager;
 struct amdgpu_dm_connector;
 
@@ -61,6 +68,10 @@ void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm,
 void
 dm_dp_create_fake_mst_encoders(struct amdgpu_device *adev);
 
+void dm_handle_mst_sideband_msg_ready_event(
+	struct drm_dp_mst_topology_mgr *mgr,
+	enum mst_msg_ready_type msg_rdy_type);
+
 struct dsc_mst_fairness_vars {
 	int pbn;
 	bool dsc_enabled;
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
index 7ccd96959256..3db4ef564b99 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
@@ -87,6 +87,11 @@ static int dcn31_get_active_display_cnt_wa(
 				stream->signal == SIGNAL_TYPE_DVI_SINGLE_LINK ||
 				stream->signal == SIGNAL_TYPE_DVI_DUAL_LINK)
 			tmds_present = true;
+
+		/* Checking stream / link detection ensuring that PHY is active*/
+		if (dc_is_dp_signal(stream->signal) && !stream->dpms_off)
+			display_count++;
+
 	}
 
 	for (i = 0; i < dc->link_count; i++) {
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index a50309039d08..9834b75f1837 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -3278,7 +3278,8 @@ void dcn10_wait_for_mpcc_disconnect(
 		if (pipe_ctx->stream_res.opp->mpcc_disconnect_pending[mpcc_inst]) {
 			struct hubp *hubp = get_hubp_by_inst(res_pool, mpcc_inst);
 
-			if (pipe_ctx->stream_res.tg->funcs->is_tg_enabled(pipe_ctx->stream_res.tg))
+			if (pipe_ctx->stream_res.tg &&
+				pipe_ctx->stream_res.tg->funcs->is_tg_enabled(pipe_ctx->stream_res.tg))
 				res_pool->mpc->funcs->wait_for_idle(res_pool->mpc, mpcc_inst);
 			pipe_ctx->stream_res.opp->mpcc_disconnect_pending[mpcc_inst] = false;
 			hubp->funcs->set_blank(hubp, true);
diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.c
index dfb8f62765f2..5bf4d0aa6230 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.c
@@ -215,7 +215,7 @@ void optc3_set_odm_bypass(struct timing_generator *optc,
 	optc1->opp_count = 1;
 }
 
-static void optc3_set_odm_combine(struct timing_generator *optc, int *opp_id, int opp_cnt,
+void optc3_set_odm_combine(struct timing_generator *optc, int *opp_id, int opp_cnt,
 		struct dc_crtc_timing *timing)
 {
 	struct optc *optc1 = DCN10TG_FROM_TG(optc);
@@ -293,7 +293,7 @@ static void optc3_set_timing_double_buffer(struct timing_generator *optc, bool e
 		   OTG_DRR_TIMING_DBUF_UPDATE_MODE, mode);
 }
 
-static void optc3_wait_drr_doublebuffer_pending_clear(struct timing_generator *optc)
+void optc3_wait_drr_doublebuffer_pending_clear(struct timing_generator *optc)
 {
 	struct optc *optc1 = DCN10TG_FROM_TG(optc);
 
diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.h b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.h
index fb06dc9a4893..d3a056c12b0d 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.h
@@ -351,6 +351,9 @@ void optc3_set_timing_db_mode(struct timing_generator *optc, bool enable);
 
 void optc3_set_odm_bypass(struct timing_generator *optc,
 		const struct dc_crtc_timing *dc_crtc_timing);
+void optc3_set_odm_combine(struct timing_generator *optc, int *opp_id, int opp_cnt,
+		struct dc_crtc_timing *timing);
+void optc3_wait_drr_doublebuffer_pending_clear(struct timing_generator *optc);
 void optc3_tg_init(struct timing_generator *optc);
 void optc3_set_vtotal_min_max(struct timing_generator *optc, int vtotal_min, int vtotal_max);
 #endif /* __DC_OPTC_DCN30_H__ */
diff --git a/drivers/gpu/drm/amd/display/dc/dcn301/Makefile b/drivers/gpu/drm/amd/display/dc/dcn301/Makefile
index 7aa628c21973..9002cb10a6ae 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn301/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/dcn301/Makefile
@@ -11,7 +11,8 @@
 # Makefile for dcn30.
 
 DCN301 = dcn301_init.o dcn301_resource.o dcn301_dccg.o \
-		dcn301_dio_link_encoder.o dcn301_hwseq.o dcn301_panel_cntl.o dcn301_hubbub.o
+		dcn301_dio_link_encoder.o dcn301_hwseq.o dcn301_panel_cntl.o dcn301_hubbub.o \
+		dcn301_optc.o
 
 AMD_DAL_DCN301 = $(addprefix $(AMDDALPATH)/dc/dcn301/,$(DCN301))
 
diff --git a/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_optc.c b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_optc.c
new file mode 100644
index 000000000000..b3cfcb887905
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_optc.c
@@ -0,0 +1,185 @@
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "reg_helper.h"
+#include "dcn301_optc.h"
+#include "dc.h"
+#include "dcn_calc_math.h"
+#include "dc_dmub_srv.h"
+
+#include "dml/dcn30/dcn30_fpu.h"
+#include "dc_trace.h"
+
+#define REG(reg)\
+	optc1->tg_regs->reg
+
+#define CTX \
+	optc1->base.ctx
+
+#undef FN
+#define FN(reg_name, field_name) \
+	optc1->tg_shift->field_name, optc1->tg_mask->field_name
+
+
+/**
+ * optc301_set_drr() - Program dynamic refresh rate registers m_OTGx_OTG_V_TOTAL_*.
+ *
+ * @optc: timing_generator instance.
+ * @params: parameters used for Dynamic Refresh Rate.
+ */
+void optc301_set_drr(
+	struct timing_generator *optc,
+	const struct drr_params *params)
+{
+	struct optc *optc1 = DCN10TG_FROM_TG(optc);
+
+	if (params != NULL &&
+		params->vertical_total_max > 0 &&
+		params->vertical_total_min > 0) {
+
+		if (params->vertical_total_mid != 0) {
+
+			REG_SET(OTG_V_TOTAL_MID, 0,
+				OTG_V_TOTAL_MID, params->vertical_total_mid - 1);
+
+			REG_UPDATE_2(OTG_V_TOTAL_CONTROL,
+					OTG_VTOTAL_MID_REPLACING_MAX_EN, 1,
+					OTG_VTOTAL_MID_FRAME_NUM,
+					(uint8_t)params->vertical_total_mid_frame_num);
+
+		}
+
+		optc->funcs->set_vtotal_min_max(optc, params->vertical_total_min - 1, params->vertical_total_max - 1);
+
+		REG_UPDATE_5(OTG_V_TOTAL_CONTROL,
+				OTG_V_TOTAL_MIN_SEL, 1,
+				OTG_V_TOTAL_MAX_SEL, 1,
+				OTG_FORCE_LOCK_ON_EVENT, 0,
+				OTG_SET_V_TOTAL_MIN_MASK_EN, 0,
+				OTG_SET_V_TOTAL_MIN_MASK, 0);
+		// Setup manual flow control for EOF via TRIG_A
+		optc->funcs->setup_manual_trigger(optc);
+
+	} else {
+		REG_UPDATE_4(OTG_V_TOTAL_CONTROL,
+				OTG_SET_V_TOTAL_MIN_MASK, 0,
+				OTG_V_TOTAL_MIN_SEL, 0,
+				OTG_V_TOTAL_MAX_SEL, 0,
+				OTG_FORCE_LOCK_ON_EVENT, 0);
+
+		optc->funcs->set_vtotal_min_max(optc, 0, 0);
+	}
+}
+
+
+void optc301_setup_manual_trigger(struct timing_generator *optc)
+{
+	struct optc *optc1 = DCN10TG_FROM_TG(optc);
+
+	REG_SET_8(OTG_TRIGA_CNTL, 0,
+			OTG_TRIGA_SOURCE_SELECT, 21,
+			OTG_TRIGA_SOURCE_PIPE_SELECT, optc->inst,
+			OTG_TRIGA_RISING_EDGE_DETECT_CNTL, 1,
+			OTG_TRIGA_FALLING_EDGE_DETECT_CNTL, 0,
+			OTG_TRIGA_POLARITY_SELECT, 0,
+			OTG_TRIGA_FREQUENCY_SELECT, 0,
+			OTG_TRIGA_DELAY, 0,
+			OTG_TRIGA_CLEAR, 1);
+}
+
+static struct timing_generator_funcs dcn30_tg_funcs = {
+		.validate_timing = optc1_validate_timing,
+		.program_timing = optc1_program_timing,
+		.setup_vertical_interrupt0 = optc1_setup_vertical_interrupt0,
+		.setup_vertical_interrupt1 = optc1_setup_vertical_interrupt1,
+		.setup_vertical_interrupt2 = optc1_setup_vertical_interrupt2,
+		.program_global_sync = optc1_program_global_sync,
+		.enable_crtc = optc2_enable_crtc,
+		.disable_crtc = optc1_disable_crtc,
+		/* used by enable_timing_synchronization. Not need for FPGA */
+		.is_counter_moving = optc1_is_counter_moving,
+		.get_position = optc1_get_position,
+		.get_frame_count = optc1_get_vblank_counter,
+		.get_scanoutpos = optc1_get_crtc_scanoutpos,
+		.get_otg_active_size = optc1_get_otg_active_size,
+		.set_early_control = optc1_set_early_control,
+		/* used by enable_timing_synchronization. Not need for FPGA */
+		.wait_for_state = optc1_wait_for_state,
+		.set_blank_color = optc3_program_blank_color,
+		.did_triggered_reset_occur = optc1_did_triggered_reset_occur,
+		.triplebuffer_lock = optc3_triplebuffer_lock,
+		.triplebuffer_unlock = optc2_triplebuffer_unlock,
+		.enable_reset_trigger = optc1_enable_reset_trigger,
+		.enable_crtc_reset = optc1_enable_crtc_reset,
+		.disable_reset_trigger = optc1_disable_reset_trigger,
+		.lock = optc3_lock,
+		.unlock = optc1_unlock,
+		.lock_doublebuffer_enable = optc3_lock_doublebuffer_enable,
+		.lock_doublebuffer_disable = optc3_lock_doublebuffer_disable,
+		.enable_optc_clock = optc1_enable_optc_clock,
+		.set_drr = optc301_set_drr,
+		.get_last_used_drr_vtotal = optc2_get_last_used_drr_vtotal,
+		.set_vtotal_min_max = optc3_set_vtotal_min_max,
+		.set_static_screen_control = optc1_set_static_screen_control,
+		.program_stereo = optc1_program_stereo,
+		.is_stereo_left_eye = optc1_is_stereo_left_eye,
+		.tg_init = optc3_tg_init,
+		.is_tg_enabled = optc1_is_tg_enabled,
+		.is_optc_underflow_occurred = optc1_is_optc_underflow_occurred,
+		.clear_optc_underflow = optc1_clear_optc_underflow,
+		.setup_global_swap_lock = NULL,
+		.get_crc = optc1_get_crc,
+		.configure_crc = optc2_configure_crc,
+		.set_dsc_config = optc3_set_dsc_config,
+		.get_dsc_status = optc2_get_dsc_status,
+		.set_dwb_source = NULL,
+		.set_odm_bypass = optc3_set_odm_bypass,
+		.set_odm_combine = optc3_set_odm_combine,
+		.get_optc_source = optc2_get_optc_source,
+		.set_out_mux = optc3_set_out_mux,
+		.set_drr_trigger_window = optc3_set_drr_trigger_window,
+		.set_vtotal_change_limit = optc3_set_vtotal_change_limit,
+		.set_gsl = optc2_set_gsl,
+		.set_gsl_source_select = optc2_set_gsl_source_select,
+		.set_vtg_params = optc1_set_vtg_params,
+		.program_manual_trigger = optc2_program_manual_trigger,
+		.setup_manual_trigger = optc301_setup_manual_trigger,
+		.get_hw_timing = optc1_get_hw_timing,
+		.wait_drr_doublebuffer_pending_clear = optc3_wait_drr_doublebuffer_pending_clear,
+};
+
+void dcn301_timing_generator_init(struct optc *optc1)
+{
+	optc1->base.funcs = &dcn30_tg_funcs;
+
+	optc1->max_h_total = optc1->tg_mask->OTG_H_TOTAL + 1;
+	optc1->max_v_total = optc1->tg_mask->OTG_V_TOTAL + 1;
+
+	optc1->min_h_blank = 32;
+	optc1->min_v_blank = 3;
+	optc1->min_v_blank_interlace = 5;
+	optc1->min_h_sync_width = 4;
+	optc1->min_v_sync_width = 1;
+}
diff --git a/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_optc.h b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_optc.h
new file mode 100644
index 000000000000..b49585682a15
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_optc.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DC_OPTC_DCN301_H__
+#define __DC_OPTC_DCN301_H__
+
+#include "dcn20/dcn20_optc.h"
+#include "dcn30/dcn30_optc.h"
+
+void dcn301_timing_generator_init(struct optc *optc1);
+void optc301_setup_manual_trigger(struct timing_generator *optc);
+void optc301_set_drr(struct timing_generator *optc, const struct drr_params *params);
+
+#endif /* __DC_OPTC_DCN301_H__ */
diff --git a/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c
index 3485fbb1093e..1bee9a4636e6 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c
@@ -42,7 +42,7 @@
 #include "dcn30/dcn30_hubp.h"
 #include "irq/dcn30/irq_service_dcn30.h"
 #include "dcn30/dcn30_dpp.h"
-#include "dcn30/dcn30_optc.h"
+#include "dcn301/dcn301_optc.h"
 #include "dcn20/dcn20_hwseq.h"
 #include "dcn30/dcn30_hwseq.h"
 #include "dce110/dce110_hw_sequencer.h"
@@ -855,7 +855,7 @@ static struct timing_generator *dcn301_timing_generator_create(
 	tgn10->tg_shift = &optc_shift;
 	tgn10->tg_mask = &optc_mask;
 
-	dcn30_timing_generator_init(tgn10);
+	dcn301_timing_generator_init(tgn10);
 
 	return &tgn10->base;
 }
diff --git a/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c b/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c
index 45956ef6f3f9..131b8b82afc0 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c
@@ -65,7 +65,7 @@ static const struct dc_debug_options debug_defaults_drv = {
 		.timing_trace = false,
 		.clock_trace = true,
 		.disable_pplib_clock_request = true,
-		.pipe_split_policy = MPC_SPLIT_DYNAMIC,
+		.pipe_split_policy = MPC_SPLIT_AVOID,
 		.force_single_disp_pipe_split = false,
 		.disable_dcc = DCC_ENABLE,
 		.vsr_support = true,
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c
index d9e049e7ff0a..ed8ddb75b333 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c
@@ -295,7 +295,11 @@ int dcn314_populate_dml_pipes_from_context_fpu(struct dc *dc, struct dc_state *c
 		pipe = &res_ctx->pipe_ctx[i];
 		timing = &pipe->stream->timing;
 
-		pipes[pipe_cnt].pipe.dest.vtotal = pipe->stream->adjust.v_total_min;
+		if (pipe->stream->adjust.v_total_min != 0)
+			pipes[pipe_cnt].pipe.dest.vtotal = pipe->stream->adjust.v_total_min;
+		else
+			pipes[pipe_cnt].pipe.dest.vtotal = timing->v_total;
+
 		pipes[pipe_cnt].pipe.dest.vblank_nom = timing->v_total - pipes[pipe_cnt].pipe.dest.vactive;
 		pipes[pipe_cnt].pipe.dest.vblank_nom = min(pipes[pipe_cnt].pipe.dest.vblank_nom, dcn3_14_ip.VBlankNomDefaultUS);
 		pipes[pipe_cnt].pipe.dest.vblank_nom = max(pipes[pipe_cnt].pipe.dest.vblank_nom, timing->v_sync_width);
diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c
index 6841a4bce186..1cb402264497 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c
@@ -1798,17 +1798,6 @@ static int smu7_disable_dpm_tasks(struct pp_hwmgr *hwmgr)
 	return result;
 }
 
-static bool intel_core_rkl_chk(void)
-{
-#if IS_ENABLED(CONFIG_X86_64)
-	struct cpuinfo_x86 *c = &cpu_data(0);
-
-	return (c->x86 == 6 && c->x86_model == INTEL_FAM6_ROCKETLAKE);
-#else
-	return false;
-#endif
-}
-
 static void smu7_init_dpm_defaults(struct pp_hwmgr *hwmgr)
 {
 	struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
@@ -1835,7 +1824,8 @@ static void smu7_init_dpm_defaults(struct pp_hwmgr *hwmgr)
 	data->mclk_dpm_key_disabled = hwmgr->feature_mask & PP_MCLK_DPM_MASK ? false : true;
 	data->sclk_dpm_key_disabled = hwmgr->feature_mask & PP_SCLK_DPM_MASK ? false : true;
 	data->pcie_dpm_key_disabled =
-		intel_core_rkl_chk() || !(hwmgr->feature_mask & PP_PCIE_DPM_MASK);
+		!amdgpu_device_pcie_dynamic_switching_supported() ||
+		!(hwmgr->feature_mask & PP_PCIE_DPM_MASK);
 	/* need to set voltage control types before EVV patching */
 	data->voltage_control = SMU7_VOLTAGE_CONTROL_NONE;
 	data->vddci_control = SMU7_VOLTAGE_CONTROL_NONE;
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
index f6599c00a6fd..0cda3b276f61 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
@@ -1927,12 +1927,16 @@ static int sienna_cichlid_read_sensor(struct smu_context *smu,
 		*size = 4;
 		break;
 	case AMDGPU_PP_SENSOR_GFX_MCLK:
-		ret = sienna_cichlid_get_current_clk_freq_by_table(smu, SMU_UCLK, (uint32_t *)data);
+		ret = sienna_cichlid_get_smu_metrics_data(smu,
+							  METRICS_CURR_UCLK,
+							  (uint32_t *)data);
 		*(uint32_t *)data *= 100;
 		*size = 4;
 		break;
 	case AMDGPU_PP_SENSOR_GFX_SCLK:
-		ret = sienna_cichlid_get_current_clk_freq_by_table(smu, SMU_GFXCLK, (uint32_t *)data);
+		ret = sienna_cichlid_get_smu_metrics_data(smu,
+							  METRICS_AVERAGE_GFXCLK,
+							  (uint32_t *)data);
 		*(uint32_t *)data *= 100;
 		*size = 4;
 		break;
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
index 3ba02131e682..b1f0937ccade 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
@@ -949,7 +949,7 @@ static int smu_v13_0_7_read_sensor(struct smu_context *smu,
 		break;
 	case AMDGPU_PP_SENSOR_GFX_MCLK:
 		ret = smu_v13_0_7_get_smu_metrics_data(smu,
-						       METRICS_AVERAGE_UCLK,
+						       METRICS_CURR_UCLK,
 						       (uint32_t *)data);
 		*(uint32_t *)data *= 100;
 		*size = 4;
diff --git a/drivers/gpu/drm/drm_client_modeset.c b/drivers/gpu/drm/drm_client_modeset.c
index 1b12a3c201a3..871e4e2129d6 100644
--- a/drivers/gpu/drm/drm_client_modeset.c
+++ b/drivers/gpu/drm/drm_client_modeset.c
@@ -311,6 +311,9 @@ static bool drm_client_target_cloned(struct drm_device *dev,
 	can_clone = true;
 	dmt_mode = drm_mode_find_dmt(dev, 1024, 768, 60, false);
 
+	if (!dmt_mode)
+		goto fail;
+
 	for (i = 0; i < connector_count; i++) {
 		if (!enabled[i])
 			continue;
@@ -326,11 +329,13 @@ static bool drm_client_target_cloned(struct drm_device *dev,
 		if (!modes[i])
 			can_clone = false;
 	}
+	kfree(dmt_mode);
 
 	if (can_clone) {
 		DRM_DEBUG_KMS("can clone using 1024x768\n");
 		return true;
 	}
+fail:
 	DRM_INFO("kms: can't enable cloning when we probably wanted to.\n");
 	return false;
 }
@@ -862,6 +867,7 @@ int drm_client_modeset_probe(struct drm_client_dev *client, unsigned int width,
 				break;
 			}
 
+			kfree(modeset->mode);
 			modeset->mode = drm_mode_duplicate(dev, mode);
 			drm_connector_get(connector);
 			modeset->connectors[modeset->num_connectors++] = connector;
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 789dce9e2608..dcbda9ba32dd 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -23,6 +23,11 @@ subdir-ccflags-y += $(call cc-option, -Wunused-but-set-variable)
 subdir-ccflags-y += $(call cc-disable-warning, frame-address)
 subdir-ccflags-$(CONFIG_DRM_I915_WERROR) += -Werror
 
+# Fine grained warnings disable
+CFLAGS_i915_pci.o = $(call cc-disable-warning, override-init)
+CFLAGS_display/intel_display_device.o = $(call cc-disable-warning, override-init)
+CFLAGS_display/intel_fbdev.o = $(call cc-disable-warning, override-init)
+
 subdir-ccflags-y += -I$(srctree)/$(src)
 
 # Please keep these build lists sorted!
diff --git a/drivers/gpu/drm/i915/display/intel_display_device.c b/drivers/gpu/drm/i915/display/intel_display_device.c
index 3fd30e7f0062..f0ee9bcf661d 100644
--- a/drivers/gpu/drm/i915/display/intel_display_device.c
+++ b/drivers/gpu/drm/i915/display/intel_display_device.c
@@ -16,9 +16,6 @@
 #include "intel_display_reg_defs.h"
 #include "intel_fbc.h"
 
-__diag_push();
-__diag_ignore_all("-Woverride-init", "Allow overriding inherited members");
-
 static const struct intel_display_device_info no_display = {};
 
 #define PIPE_A_OFFSET		0x70000
@@ -665,8 +662,6 @@ static const struct intel_display_device_info xe_lpdp_display = {
 		BIT(TRANSCODER_C) | BIT(TRANSCODER_D),
 };
 
-__diag_pop();
-
 #undef INTEL_VGA_DEVICE
 #undef INTEL_QUANTA_VGA_DEVICE
 #define INTEL_VGA_DEVICE(id, info) { id, info }
diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.c b/drivers/gpu/drm/i915/display/intel_fbdev.c
index 1cc0ddc6a310..80c3f88310db 100644
--- a/drivers/gpu/drm/i915/display/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/display/intel_fbdev.c
@@ -135,9 +135,6 @@ static int intel_fbdev_mmap(struct fb_info *info, struct vm_area_struct *vma)
 	return i915_gem_fb_mmap(obj, vma);
 }
 
-__diag_push();
-__diag_ignore_all("-Woverride-init", "Allow overriding the default ops");
-
 static const struct fb_ops intelfb_ops = {
 	.owner = THIS_MODULE,
 	__FB_DEFAULT_DEFERRED_OPS_RDWR(intel_fbdev),
@@ -149,8 +146,6 @@ static const struct fb_ops intelfb_ops = {
 	.fb_mmap = intel_fbdev_mmap,
 };
 
-__diag_pop();
-
 static int intelfb_alloc(struct drm_fb_helper *helper,
 			 struct drm_fb_helper_surface_size *sizes)
 {
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 3d7a5db9833b..928975d5fe2f 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -38,9 +38,6 @@
 #include "i915_reg.h"
 #include "intel_pci_config.h"
 
-__diag_push();
-__diag_ignore_all("-Woverride-init", "Allow overriding inherited members");
-
 #define PLATFORM(x) .platform = (x)
 #define GEN(x) \
 	.__runtime.graphics.ip.ver = (x), \
@@ -846,8 +843,6 @@ static const struct intel_device_info mtl_info = {
 
 #undef PLATFORM
 
-__diag_pop();
-
 /*
  * Make sure any device matches here are from most specific to most
  * general.  For example, since the Quanta match is based on the subsystem
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 7413c11fb562..49c6f1ff1128 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -4431,6 +4431,7 @@ static const struct i915_range mtl_oam_b_counters[] = {
 static const struct i915_range xehp_oa_b_counters[] = {
 	{ .start = 0xdc48, .end = 0xdc48 },	/* OAA_ENABLE_REG */
 	{ .start = 0xdd00, .end = 0xdd48 },	/* OAG_LCE0_0 - OAA_LENABLE_REG */
+	{}
 };
 
 static const struct i915_range gen7_oa_mux_regs[] = {
diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c
index 38d3fad0d97a..1bec819da876 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
@@ -1877,6 +1877,8 @@ nv50_pior_destroy(struct drm_encoder *encoder)
 	nvif_outp_dtor(&nv_encoder->outp);
 
 	drm_encoder_cleanup(encoder);
+
+	mutex_destroy(&nv_encoder->dp.hpd_irq_lock);
 	kfree(encoder);
 }
 
@@ -1921,6 +1923,8 @@ nv50_pior_create(struct drm_connector *connector, struct dcb_output *dcbe)
 	nv_encoder->i2c = ddc;
 	nv_encoder->aux = aux;
 
+	mutex_init(&nv_encoder->dp.hpd_irq_lock);
+
 	encoder = to_drm_encoder(nv_encoder);
 	encoder->possible_crtcs = dcbe->heads;
 	encoder->possible_clones = 0;
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h
index 40a1065ae626..ef441dfdea09 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h
@@ -16,7 +16,7 @@ struct nvkm_i2c_bus {
 	const struct nvkm_i2c_bus_func *func;
 	struct nvkm_i2c_pad *pad;
 #define NVKM_I2C_BUS_CCB(n) /* 'n' is ccb index */                           (n)
-#define NVKM_I2C_BUS_EXT(n) /* 'n' is dcb external encoder type */ ((n) + 0x100)
+#define NVKM_I2C_BUS_EXT(n) /* 'n' is dcb external encoder type */  ((n) + 0x10)
 #define NVKM_I2C_BUS_PRI /* ccb primary comm. port */                        -1
 #define NVKM_I2C_BUS_SEC /* ccb secondary comm. port */                      -2
 	int id;
@@ -38,7 +38,7 @@ struct nvkm_i2c_aux {
 	const struct nvkm_i2c_aux_func *func;
 	struct nvkm_i2c_pad *pad;
 #define NVKM_I2C_AUX_CCB(n) /* 'n' is ccb index */                           (n)
-#define NVKM_I2C_AUX_EXT(n) /* 'n' is dcb external encoder type */ ((n) + 0x100)
+#define NVKM_I2C_AUX_EXT(n) /* 'n' is dcb external encoder type */  ((n) + 0x10)
 	int id;
 
 	struct mutex mutex;
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/uconn.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/uconn.c
index dad942be6679..46b057fe1412 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/uconn.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/uconn.c
@@ -81,20 +81,29 @@ nvkm_uconn_uevent(struct nvkm_object *object, void *argv, u32 argc, struct nvkm_
 		return -ENOSYS;
 
 	list_for_each_entry(outp, &conn->disp->outps, head) {
-		if (outp->info.connector == conn->index && outp->dp.aux) {
-			if (args->v0.types & NVIF_CONN_EVENT_V0_PLUG  ) bits |= NVKM_I2C_PLUG;
-			if (args->v0.types & NVIF_CONN_EVENT_V0_UNPLUG) bits |= NVKM_I2C_UNPLUG;
-			if (args->v0.types & NVIF_CONN_EVENT_V0_IRQ   ) bits |= NVKM_I2C_IRQ;
+		if (outp->info.connector == conn->index)
+			break;
+	}
 
-			return nvkm_uevent_add(uevent, &device->i2c->event, outp->dp.aux->id, bits,
-					       nvkm_uconn_uevent_aux);
-		}
+	if (&outp->head == &conn->disp->outps)
+		return -EINVAL;
+
+	if (outp->dp.aux && !outp->info.location) {
+		if (args->v0.types & NVIF_CONN_EVENT_V0_PLUG  ) bits |= NVKM_I2C_PLUG;
+		if (args->v0.types & NVIF_CONN_EVENT_V0_UNPLUG) bits |= NVKM_I2C_UNPLUG;
+		if (args->v0.types & NVIF_CONN_EVENT_V0_IRQ   ) bits |= NVKM_I2C_IRQ;
+
+		return nvkm_uevent_add(uevent, &device->i2c->event, outp->dp.aux->id, bits,
+				       nvkm_uconn_uevent_aux);
 	}
 
 	if (args->v0.types & NVIF_CONN_EVENT_V0_PLUG  ) bits |= NVKM_GPIO_HI;
 	if (args->v0.types & NVIF_CONN_EVENT_V0_UNPLUG) bits |= NVKM_GPIO_LO;
-	if (args->v0.types & NVIF_CONN_EVENT_V0_IRQ)
-		return -EINVAL;
+	if (args->v0.types & NVIF_CONN_EVENT_V0_IRQ) {
+		/* TODO: support DP IRQ on ANX9805 and remove this hack. */
+		if (!outp->info.location)
+			return -EINVAL;
+	}
 
 	return nvkm_uevent_add(uevent, &device->gpio->event, conn->info.hpd, bits,
 			       nvkm_uconn_uevent_gpio);
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c
index 976539de4220..731b2f68d3db 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c
@@ -260,10 +260,11 @@ nvkm_i2c_new_(const struct nvkm_i2c_func *func, struct nvkm_device *device,
 {
 	struct nvkm_bios *bios = device->bios;
 	struct nvkm_i2c *i2c;
+	struct nvkm_i2c_aux *aux;
 	struct dcb_i2c_entry ccbE;
 	struct dcb_output dcbE;
 	u8 ver, hdr;
-	int ret, i;
+	int ret, i, ids;
 
 	if (!(i2c = *pi2c = kzalloc(sizeof(*i2c), GFP_KERNEL)))
 		return -ENOMEM;
@@ -406,5 +407,11 @@ nvkm_i2c_new_(const struct nvkm_i2c_func *func, struct nvkm_device *device,
 		}
 	}
 
-	return nvkm_event_init(&nvkm_i2c_intr_func, &i2c->subdev, 4, i, &i2c->event);
+	ids = 0;
+	list_for_each_entry(aux, &i2c->aux, head)
+		ids = max(ids, aux->id + 1);
+	if (!ids)
+		return 0;
+
+	return nvkm_event_init(&nvkm_i2c_intr_func, &i2c->subdev, 4, ids, &i2c->event);
 }