Merge tag 'v4.13-rc1' into fixes

The fixes branch is based off a random pre-rc1 commit, because we had
some fixes that needed to go in before rc1 was released.

However we now need to fix some code that went in after that point, but
before rc1, so merge rc1 to get that code into fixes so we can fix it!

35 files changed, 423 insertions, 278 deletions

diff --git a/drivers/gpu/drm/bridge/panel.c b/drivers/gpu/drm/bridge/panel.c
index 99f9a4beb859..67fe19e5a9c6 100644
--- a/drivers/gpu/drm/bridge/panel.c
+++ b/drivers/gpu/drm/bridge/panel.c
@@ -161,7 +161,7 @@ struct drm_bridge *drm_panel_bridge_add(struct drm_panel *panel,
 	int ret;
 
 	if (!panel)
-		return ERR_PTR(EINVAL);
+		return ERR_PTR(-EINVAL);
 
 	panel_bridge = devm_kzalloc(panel->dev, sizeof(*panel_bridge),
 				    GFP_KERNEL);
diff --git a/drivers/gpu/drm/drm_dp_aux_dev.c b/drivers/gpu/drm/drm_dp_aux_dev.c
index ec1ed94b2390..d34e5096887a 100644
--- a/drivers/gpu/drm/drm_dp_aux_dev.c
+++ b/drivers/gpu/drm/drm_dp_aux_dev.c
@@ -32,6 +32,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/uaccess.h>
+#include <linux/uio.h>
 #include <drm/drm_dp_helper.h>
 #include <drm/drm_crtc.h>
 #include <drm/drmP.h>
@@ -140,101 +141,83 @@ static loff_t auxdev_llseek(struct file *file, loff_t offset, int whence)
 	return fixed_size_llseek(file, offset, whence, AUX_MAX_OFFSET);
 }
 
-static ssize_t auxdev_read(struct file *file, char __user *buf, size_t count,
-			   loff_t *offset)
+static ssize_t auxdev_read_iter(struct kiocb *iocb, struct iov_iter *to)
 {
-	size_t bytes_pending, num_bytes_processed = 0;
-	struct drm_dp_aux_dev *aux_dev = file->private_data;
+	struct drm_dp_aux_dev *aux_dev = iocb->ki_filp->private_data;
+	loff_t pos = iocb->ki_pos;
 	ssize_t res = 0;
 
 	if (!atomic_inc_not_zero(&aux_dev->usecount))
 		return -ENODEV;
 
-	bytes_pending = min((loff_t)count, AUX_MAX_OFFSET - (*offset));
-
-	if (!access_ok(VERIFY_WRITE, buf, bytes_pending)) {
-		res = -EFAULT;
-		goto out;
-	}
+	iov_iter_truncate(to, AUX_MAX_OFFSET - pos);
 
-	while (bytes_pending > 0) {
-		uint8_t localbuf[DP_AUX_MAX_PAYLOAD_BYTES];
-		ssize_t todo = min_t(size_t, bytes_pending, sizeof(localbuf));
+	while (iov_iter_count(to)) {
+		uint8_t buf[DP_AUX_MAX_PAYLOAD_BYTES];
+		ssize_t todo = min(iov_iter_count(to), sizeof(buf));
 
 		if (signal_pending(current)) {
-			res = num_bytes_processed ?
-				num_bytes_processed : -ERESTARTSYS;
-			goto out;
+			res = -ERESTARTSYS;
+			break;
 		}
 
-		res = drm_dp_dpcd_read(aux_dev->aux, *offset, localbuf, todo);
-		if (res <= 0) {
-			res = num_bytes_processed ? num_bytes_processed : res;
-			goto out;
-		}
-		if (__copy_to_user(buf + num_bytes_processed, localbuf, res)) {
-			res = num_bytes_processed ?
-				num_bytes_processed : -EFAULT;
-			goto out;
+		res = drm_dp_dpcd_read(aux_dev->aux, pos, buf, todo);
+		if (res <= 0)
+			break;
+
+		if (copy_to_iter(buf, res, to) != res) {
+			res = -EFAULT;
+			break;
 		}
-		bytes_pending -= res;
-		*offset += res;
-		num_bytes_processed += res;
-		res = num_bytes_processed;
+
+		pos += res;
 	}
 
-out:
+	if (pos != iocb->ki_pos)
+		res = pos - iocb->ki_pos;
+	iocb->ki_pos = pos;
+
 	atomic_dec(&aux_dev->usecount);
 	wake_up_atomic_t(&aux_dev->usecount);
 	return res;
 }
 
-static ssize_t auxdev_write(struct file *file, const char __user *buf,
-			    size_t count, loff_t *offset)
+static ssize_t auxdev_write_iter(struct kiocb *iocb, struct iov_iter *from)
 {
-	size_t bytes_pending, num_bytes_processed = 0;
-	struct drm_dp_aux_dev *aux_dev = file->private_data;
+	struct drm_dp_aux_dev *aux_dev = iocb->ki_filp->private_data;
+	loff_t pos = iocb->ki_pos;
 	ssize_t res = 0;
 
 	if (!atomic_inc_not_zero(&aux_dev->usecount))
 		return -ENODEV;
 
-	bytes_pending = min((loff_t)count, AUX_MAX_OFFSET - *offset);
-
-	if (!access_ok(VERIFY_READ, buf, bytes_pending)) {
-		res = -EFAULT;
-		goto out;
-	}
+	iov_iter_truncate(from, AUX_MAX_OFFSET - pos);
 
-	while (bytes_pending > 0) {
-		uint8_t localbuf[DP_AUX_MAX_PAYLOAD_BYTES];
-		ssize_t todo = min_t(size_t, bytes_pending, sizeof(localbuf));
+	while (iov_iter_count(from)) {
+		uint8_t buf[DP_AUX_MAX_PAYLOAD_BYTES];
+		ssize_t todo = min(iov_iter_count(from), sizeof(buf));
 
 		if (signal_pending(current)) {
-			res = num_bytes_processed ?
-				num_bytes_processed : -ERESTARTSYS;
-			goto out;
+			res = -ERESTARTSYS;
+			break;
 		}
 
-		if (__copy_from_user(localbuf,
-				     buf + num_bytes_processed, todo)) {
-			res = num_bytes_processed ?
-				num_bytes_processed : -EFAULT;
-			goto out;
+		if (!copy_from_iter_full(buf, todo, from)) {
+			res = -EFAULT;
+			break;
 		}
 
-		res = drm_dp_dpcd_write(aux_dev->aux, *offset, localbuf, todo);
-		if (res <= 0) {
-			res = num_bytes_processed ? num_bytes_processed : res;
-			goto out;
-		}
-		bytes_pending -= res;
-		*offset += res;
-		num_bytes_processed += res;
-		res = num_bytes_processed;
+		res = drm_dp_dpcd_write(aux_dev->aux, pos, buf, todo);
+		if (res <= 0)
+			break;
+
+		pos += res;
 	}
 
-out:
+	if (pos != iocb->ki_pos)
+		res = pos - iocb->ki_pos;
+	iocb->ki_pos = pos;
+
 	atomic_dec(&aux_dev->usecount);
 	wake_up_atomic_t(&aux_dev->usecount);
 	return res;
@@ -251,8 +234,8 @@ static int auxdev_release(struct inode *inode, struct file *file)
 static const struct file_operations auxdev_fops = {
 	.owner		= THIS_MODULE,
 	.llseek		= auxdev_llseek,
-	.read		= auxdev_read,
-	.write		= auxdev_write,
+	.read_iter	= auxdev_read_iter,
+	.write_iter	= auxdev_write_iter,
 	.open		= auxdev_open,
 	.release	= auxdev_release,
 };
diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
index fc8ef42203ec..b3ef4f1c2630 100644
--- a/drivers/gpu/drm/drm_framebuffer.c
+++ b/drivers/gpu/drm/drm_framebuffer.c
@@ -832,6 +832,7 @@ unlock:
 		drm_atomic_clean_old_fb(dev, plane_mask, ret);
 
 	if (ret == -EDEADLK) {
+		drm_atomic_state_clear(state);
 		drm_modeset_backoff(&ctx);
 		goto retry;
 	}
diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
index 0b2d8c4a2fa5..d1f202852028 100644
--- a/drivers/gpu/drm/drm_ioc32.c
+++ b/drivers/gpu/drm/drm_ioc32.c
@@ -112,6 +112,9 @@ static int compat_drm_version(struct file *file, unsigned int cmd,
 	v32.version_major = v.version_major;
 	v32.version_minor = v.version_minor;
 	v32.version_patchlevel = v.version_patchlevel;
+	v32.name_len = v.name_len;
+	v32.date_len = v.date_len;
+	v32.desc_len = v.desc_len;
 	if (copy_to_user((void __user *)arg, &v32, sizeof(v32)))
 		return -EFAULT;
 	return 0;
diff --git a/drivers/gpu/drm/drm_vblank.c b/drivers/gpu/drm/drm_vblank.c
index 463e4d81fb0d..e9f33cd805dd 100644
--- a/drivers/gpu/drm/drm_vblank.c
+++ b/drivers/gpu/drm/drm_vblank.c
@@ -242,7 +242,7 @@ static void drm_update_vblank_count(struct drm_device *dev, unsigned int pipe,
 	 * Otherwise reinitialize delayed at next vblank interrupt and assign 0
 	 * for now, to mark the vblanktimestamp as invalid.
 	 */
-	if (!rc && in_vblank_irq)
+	if (!rc && !in_vblank_irq)
 		t_vblank = (struct timeval) {0, 0};
 
 	store_vblank(dev, pipe, diff, &t_vblank, cur_vblank);
diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c
index 51241de5e7a7..713848c36349 100644
--- a/drivers/gpu/drm/i915/gvt/cmd_parser.c
+++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c
@@ -2536,6 +2536,11 @@ static int scan_workload(struct intel_vgpu_workload *workload)
 		gma_head == gma_tail)
 		return 0;
 
+	if (!intel_gvt_ggtt_validate_range(s.vgpu, s.ring_start, s.ring_size)) {
+		ret = -EINVAL;
+		goto out;
+	}
+
 	ret = ip_gma_set(&s, gma_head);
 	if (ret)
 		goto out;
@@ -2579,6 +2584,11 @@ static int scan_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx)
 	s.rb_va = wa_ctx->indirect_ctx.shadow_va;
 	s.workload = workload;
 
+	if (!intel_gvt_ggtt_validate_range(s.vgpu, s.ring_start, s.ring_size)) {
+		ret = -EINVAL;
+		goto out;
+	}
+
 	ret = ip_gma_set(&s, gma_head);
 	if (ret)
 		goto out;
diff --git a/drivers/gpu/drm/i915/gvt/display.c b/drivers/gpu/drm/i915/gvt/display.c
index e0261fcc5b50..2deb05f618fb 100644
--- a/drivers/gpu/drm/i915/gvt/display.c
+++ b/drivers/gpu/drm/i915/gvt/display.c
@@ -197,6 +197,12 @@ static void emulate_monitor_status_change(struct intel_vgpu *vgpu)
 			(TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST |
 			(PORT_B << TRANS_DDI_PORT_SHIFT) |
 			TRANS_DDI_FUNC_ENABLE);
+		if (IS_BROADWELL(dev_priv)) {
+			vgpu_vreg(vgpu, PORT_CLK_SEL(PORT_B)) &=
+				~PORT_CLK_SEL_MASK;
+			vgpu_vreg(vgpu, PORT_CLK_SEL(PORT_B)) |=
+				PORT_CLK_SEL_LCPLL_810;
+		}
 		vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_B)) |= DDI_BUF_CTL_ENABLE;
 		vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_B)) &= ~DDI_BUF_IS_IDLE;
 		vgpu_vreg(vgpu, SDEISR) |= SDE_PORTB_HOTPLUG_CPT;
@@ -211,6 +217,12 @@ static void emulate_monitor_status_change(struct intel_vgpu *vgpu)
 			(TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST |
 			(PORT_C << TRANS_DDI_PORT_SHIFT) |
 			TRANS_DDI_FUNC_ENABLE);
+		if (IS_BROADWELL(dev_priv)) {
+			vgpu_vreg(vgpu, PORT_CLK_SEL(PORT_C)) &=
+				~PORT_CLK_SEL_MASK;
+			vgpu_vreg(vgpu, PORT_CLK_SEL(PORT_C)) |=
+				PORT_CLK_SEL_LCPLL_810;
+		}
 		vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_C)) |= DDI_BUF_CTL_ENABLE;
 		vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_C)) &= ~DDI_BUF_IS_IDLE;
 		vgpu_vreg(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDIC_DETECTED;
@@ -225,6 +237,12 @@ static void emulate_monitor_status_change(struct intel_vgpu *vgpu)
 			(TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST |
 			(PORT_D << TRANS_DDI_PORT_SHIFT) |
 			TRANS_DDI_FUNC_ENABLE);
+		if (IS_BROADWELL(dev_priv)) {
+			vgpu_vreg(vgpu, PORT_CLK_SEL(PORT_D)) &=
+				~PORT_CLK_SEL_MASK;
+			vgpu_vreg(vgpu, PORT_CLK_SEL(PORT_D)) |=
+				PORT_CLK_SEL_LCPLL_810;
+		}
 		vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_D)) |= DDI_BUF_CTL_ENABLE;
 		vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_D)) &= ~DDI_BUF_IS_IDLE;
 		vgpu_vreg(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDID_DETECTED;
@@ -244,6 +262,10 @@ static void emulate_monitor_status_change(struct intel_vgpu *vgpu)
 
 		vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_A)) |= DDI_INIT_DISPLAY_DETECTED;
 	}
+
+	/* Clear host CRT status, so guest couldn't detect this host CRT. */
+	if (IS_BROADWELL(dev_priv))
+		vgpu_vreg(vgpu, PCH_ADPA) &= ~ADPA_CRT_HOTPLUG_MONITOR_MASK;
 }
 
 static void clean_virtual_dp_monitor(struct intel_vgpu *vgpu, int port_num)
diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c
index 66374dba3b1a..6166e34d892b 100644
--- a/drivers/gpu/drm/i915/gvt/gtt.c
+++ b/drivers/gpu/drm/i915/gvt/gtt.c
@@ -2259,6 +2259,8 @@ int intel_gvt_init_gtt(struct intel_gvt *gvt)
 		ret = setup_spt_oos(gvt);
 		if (ret) {
 			gvt_err("fail to initialize SPT oos\n");
+			dma_unmap_page(dev, daddr, 4096, PCI_DMA_BIDIRECTIONAL);
+			__free_page(gvt->gtt.scratch_ggtt_page);
 			return ret;
 		}
 	}
diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c
index 1414d7e6148d..17febe830ff6 100644
--- a/drivers/gpu/drm/i915/gvt/handlers.c
+++ b/drivers/gpu/drm/i915/gvt/handlers.c
@@ -367,21 +367,24 @@ static int lcpll_ctl_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
 static int dpy_reg_mmio_read(struct intel_vgpu *vgpu, unsigned int offset,
 		void *p_data, unsigned int bytes)
 {
-	*(u32 *)p_data = (1 << 17);
-	return 0;
-}
-
-static int dpy_reg_mmio_read_2(struct intel_vgpu *vgpu, unsigned int offset,
-		void *p_data, unsigned int bytes)
-{
-	*(u32 *)p_data = 3;
-	return 0;
-}
+	switch (offset) {
+	case 0xe651c:
+	case 0xe661c:
+	case 0xe671c:
+	case 0xe681c:
+		vgpu_vreg(vgpu, offset) = 1 << 17;
+		break;
+	case 0xe6c04:
+		vgpu_vreg(vgpu, offset) = 0x3;
+		break;
+	case 0xe6e1c:
+		vgpu_vreg(vgpu, offset) = 0x2f << 16;
+		break;
+	default:
+		return -EINVAL;
+	}
 
-static int dpy_reg_mmio_read_3(struct intel_vgpu *vgpu, unsigned int offset,
-		void *p_data, unsigned int bytes)
-{
-	*(u32 *)p_data = (0x2f << 16);
+	read_vreg(vgpu, offset, p_data, bytes);
 	return 0;
 }
 
@@ -1925,7 +1928,7 @@ static int init_generic_mmio_info(struct intel_gvt *gvt)
 	MMIO_F(_PCH_DPD_AUX_CH_CTL, 6 * 4, 0, 0, 0, D_PRE_SKL, NULL,
 		dp_aux_ch_ctl_mmio_write);
 
-	MMIO_RO(PCH_ADPA, D_ALL, 0, ADPA_CRT_HOTPLUG_MONITOR_MASK, NULL, pch_adpa_mmio_write);
+	MMIO_DH(PCH_ADPA, D_PRE_SKL, NULL, pch_adpa_mmio_write);
 
 	MMIO_DH(_PCH_TRANSACONF, D_ALL, NULL, transconf_mmio_write);
 	MMIO_DH(_PCH_TRANSBCONF, D_ALL, NULL, transconf_mmio_write);
@@ -2011,8 +2014,8 @@ static int init_generic_mmio_info(struct intel_gvt *gvt)
 	MMIO_DH(0xe661c, D_ALL, dpy_reg_mmio_read, NULL);
 	MMIO_DH(0xe671c, D_ALL, dpy_reg_mmio_read, NULL);
 	MMIO_DH(0xe681c, D_ALL, dpy_reg_mmio_read, NULL);
-	MMIO_DH(0xe6c04, D_ALL, dpy_reg_mmio_read_2, NULL);
-	MMIO_DH(0xe6e1c, D_ALL, dpy_reg_mmio_read_3, NULL);
+	MMIO_DH(0xe6c04, D_ALL, dpy_reg_mmio_read, NULL);
+	MMIO_DH(0xe6e1c, D_ALL, dpy_reg_mmio_read, NULL);
 
 	MMIO_RO(PCH_PORT_HOTPLUG, D_ALL, 0,
 		PORTA_HOTPLUG_STATUS_MASK
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index 1ae0b4083ce1..fd0c85f9ef3c 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -232,16 +232,20 @@ static void gvt_cache_destroy(struct intel_vgpu *vgpu)
 	struct device *dev = mdev_dev(vgpu->vdev.mdev);
 	unsigned long gfn;
 
-	mutex_lock(&vgpu->vdev.cache_lock);
-	while ((node = rb_first(&vgpu->vdev.cache))) {
+	for (;;) {
+		mutex_lock(&vgpu->vdev.cache_lock);
+		node = rb_first(&vgpu->vdev.cache);
+		if (!node) {
+			mutex_unlock(&vgpu->vdev.cache_lock);
+			break;
+		}
 		dma = rb_entry(node, struct gvt_dma, node);
 		gvt_dma_unmap_iova(vgpu, dma->iova);
 		gfn = dma->gfn;
-
-		vfio_unpin_pages(dev, &gfn, 1);
 		__gvt_cache_remove_entry(vgpu, dma);
+		mutex_unlock(&vgpu->vdev.cache_lock);
+		vfio_unpin_pages(dev, &gfn, 1);
 	}
-	mutex_unlock(&vgpu->vdev.cache_lock);
 }
 
 static struct intel_vgpu_type *intel_gvt_find_vgpu_type(struct intel_gvt *gvt,
diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c
index 488fdea348a9..4f7057d62d88 100644
--- a/drivers/gpu/drm/i915/gvt/scheduler.c
+++ b/drivers/gpu/drm/i915/gvt/scheduler.c
@@ -174,15 +174,6 @@ static int shadow_context_status_change(struct notifier_block *nb,
 		atomic_set(&workload->shadow_ctx_active, 1);
 		break;
 	case INTEL_CONTEXT_SCHEDULE_OUT:
-		/* If the status is -EINPROGRESS means this workload
-		 * doesn't meet any issue during dispatching so when
-		 * get the SCHEDULE_OUT set the status to be zero for
-		 * good. If the status is NOT -EINPROGRESS means there
-		 * is something wrong happened during dispatching and
-		 * the status should not be set to zero
-		 */
-		if (workload->status == -EINPROGRESS)
-			workload->status = 0;
 		atomic_set(&workload->shadow_ctx_active, 0);
 		break;
 	default:
@@ -427,6 +418,18 @@ static void complete_current_workload(struct intel_gvt *gvt, int ring_id)
 		wait_event(workload->shadow_ctx_status_wq,
 			   !atomic_read(&workload->shadow_ctx_active));
 
+		/* If this request caused GPU hang, req->fence.error will
+		 * be set to -EIO. Use -EIO to set workload status so
+		 * that when this request caused GPU hang, didn't trigger
+		 * context switch interrupt to guest.
+		 */
+		if (likely(workload->status == -EINPROGRESS)) {
+			if (workload->req->fence.error == -EIO)
+				workload->status = -EIO;
+			else
+				workload->status = 0;
+		}
+
 		i915_gem_request_put(fetch_and_zero(&workload->req));
 
 		if (!workload->status && !vgpu->resetting) {
@@ -464,8 +467,6 @@ struct workload_thread_param {
 	int ring_id;
 };
 
-static DEFINE_MUTEX(scheduler_mutex);
-
 static int workload_thread(void *priv)
 {
 	struct workload_thread_param *p = (struct workload_thread_param *)priv;
@@ -497,8 +498,6 @@ static int workload_thread(void *priv)
 		if (!workload)
 			break;
 
-		mutex_lock(&scheduler_mutex);
-
 		gvt_dbg_sched("ring id %d next workload %p vgpu %d\n",
 				workload->ring_id, workload,
 				workload->vgpu->id);
@@ -537,9 +536,6 @@ complete:
 					FORCEWAKE_ALL);
 
 		intel_runtime_pm_put(gvt->dev_priv);
-
-		mutex_unlock(&scheduler_mutex);
-
 	}
 	return 0;
 }
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 3f44076ec8a0..00d8967c8512 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -3087,7 +3087,7 @@ static void intel_connector_info(struct seq_file *m,
 			   connector->display_info.cea_rev);
 	}
 
-	if (!intel_encoder || intel_encoder->type == INTEL_OUTPUT_DP_MST)
+	if (!intel_encoder)
 		return;
 
 	switch (connector->connector_type) {
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index ee2325b180e7..fc307e03943c 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1132,10 +1132,12 @@ static int i915_driver_init_hw(struct drm_i915_private *dev_priv)
 	 * and the registers being closely associated.
 	 *
 	 * According to chipset errata, on the 965GM, MSI interrupts may
-	 * be lost or delayed, but we use them anyways to avoid
-	 * stuck interrupts on some machines.
+	 * be lost or delayed, and was defeatured. MSI interrupts seem to
+	 * get lost on g4x as well, and interrupt delivery seems to stay
+	 * properly dead afterwards. So we'll just disable them for all
+	 * pre-gen5 chipsets.
 	 */
-	if (!IS_I945G(dev_priv) && !IS_I945GM(dev_priv)) {
+	if (INTEL_GEN(dev_priv) >= 5) {
 		if (pci_enable_msi(pdev) < 0)
 			DRM_DEBUG_DRIVER("can't enable MSI");
 	}
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 7dcac3bfb771..969bac8404f1 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2434,8 +2434,9 @@ rebuild_st:
 				 * again with !__GFP_NORETRY. However, we still
 				 * want to fail this allocation rather than
 				 * trigger the out-of-memory killer and for
-				 * this we want the future __GFP_MAYFAIL.
+				 * this we want __GFP_RETRY_MAYFAIL.
 				 */
+				gfp |= __GFP_RETRY_MAYFAIL;
 			}
 		} while (1);
 
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 9337446f1068..054b2e54cdaf 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -288,20 +288,26 @@ static int eb_create(struct i915_execbuffer *eb)
 		 * direct lookup.
 		 */
 		do {
+			unsigned int flags;
+
+			/* While we can still reduce the allocation size, don't
+			 * raise a warning and allow the allocation to fail.
+			 * On the last pass though, we want to try as hard
+			 * as possible to perform the allocation and warn
+			 * if it fails.
+			 */
+			flags = GFP_TEMPORARY;
+			if (size > 1)
+				flags |= __GFP_NORETRY | __GFP_NOWARN;
+
 			eb->buckets = kzalloc(sizeof(struct hlist_head) << size,
-					      GFP_TEMPORARY |
-					      __GFP_NORETRY |
-					      __GFP_NOWARN);
+					      flags);
 			if (eb->buckets)
 				break;
 		} while (--size);
 
-		if (unlikely(!eb->buckets)) {
-			eb->buckets = kzalloc(sizeof(struct hlist_head),
-					      GFP_TEMPORARY);
-			if (unlikely(!eb->buckets))
-				return -ENOMEM;
-		}
+		if (unlikely(!size))
+			return -ENOMEM;
 
 		eb->lut_size = size;
 	} else {
@@ -452,7 +458,7 @@ eb_add_vma(struct i915_execbuffer *eb,
 			return err;
 	}
 
-	if (eb->lut_size >= 0) {
+	if (eb->lut_size > 0) {
 		vma->exec_handle = entry->handle;
 		hlist_add_head(&vma->exec_node,
 			       &eb->buckets[hash_32(entry->handle,
@@ -894,7 +900,7 @@ static void eb_release_vmas(const struct i915_execbuffer *eb)
 static void eb_reset_vmas(const struct i915_execbuffer *eb)
 {
 	eb_release_vmas(eb);
-	if (eb->lut_size >= 0)
+	if (eb->lut_size > 0)
 		memset(eb->buckets, 0,
 		       sizeof(struct hlist_head) << eb->lut_size);
 }
@@ -903,7 +909,7 @@ static void eb_destroy(const struct i915_execbuffer *eb)
 {
 	GEM_BUG_ON(eb->reloc_cache.rq);
 
-	if (eb->lut_size >= 0)
+	if (eb->lut_size > 0)
 		kfree(eb->buckets);
 }
 
@@ -2180,8 +2186,11 @@ i915_gem_do_execbuffer(struct drm_device *dev,
 		}
 	}
 
-	if (eb_create(&eb))
-		return -ENOMEM;
+	err = eb_create(&eb);
+	if (err)
+		goto err_out_fence;
+
+	GEM_BUG_ON(!eb.lut_size);
 
 	/*
 	 * Take a local wakeref for preparing to dispatch the execbuf as
@@ -2340,6 +2349,7 @@ err_unlock:
 err_rpm:
 	intel_runtime_pm_put(eb.i915);
 	eb_destroy(&eb);
+err_out_fence:
 	if (out_fence_fd != -1)
 		put_unused_fd(out_fence_fd);
 err_in_fence:
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 38c44407bafc..9cd22f83b0cf 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -2067,10 +2067,6 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
 			return ret;
 	}
 
-	ret = alloc_oa_buffer(dev_priv);
-	if (ret)
-		goto err_oa_buf_alloc;
-
 	/* PRM - observability performance counters:
 	 *
 	 *   OACONTROL, performance counter enable, note:
@@ -2086,6 +2082,10 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
 	intel_runtime_pm_get(dev_priv);
 	intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
 
+	ret = alloc_oa_buffer(dev_priv);
+	if (ret)
+		goto err_oa_buf_alloc;
+
 	ret = dev_priv->perf.oa.ops.enable_metric_set(dev_priv);
 	if (ret)
 		goto err_enable;
@@ -2097,11 +2097,11 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
 	return 0;
 
 err_enable:
-	intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
-	intel_runtime_pm_put(dev_priv);
 	free_oa_buffer(dev_priv);
 
 err_oa_buf_alloc:
+	intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
+	intel_runtime_pm_put(dev_priv);
 	if (stream->ctx)
 		oa_put_render_ctx_id(stream);
 
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index c8647cfa81ba..64cc674b652a 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -1802,7 +1802,7 @@ enum skl_disp_power_wells {
 #define   POST_CURSOR_2(x)		((x) << 6)
 #define   POST_CURSOR_2_MASK		(0x3F << 6)
 #define   CURSOR_COEFF(x)		((x) << 0)
-#define   CURSOR_COEFF_MASK		(0x3F << 6)
+#define   CURSOR_COEFF_MASK		(0x3F << 0)
 
 #define _CNL_PORT_TX_DW5_GRP_AE		0x162354
 #define _CNL_PORT_TX_DW5_GRP_B		0x1623D4
diff --git a/drivers/gpu/drm/i915/intel_cdclk.c b/drivers/gpu/drm/i915/intel_cdclk.c
index b8914db7d2e1..1241e5891b29 100644
--- a/drivers/gpu/drm/i915/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/intel_cdclk.c
@@ -491,6 +491,14 @@ static void vlv_set_cdclk(struct drm_i915_private *dev_priv,
 	int cdclk = cdclk_state->cdclk;
 	u32 val, cmd;
 
+	/* There are cases where we can end up here with power domains
+	 * off and a CDCLK frequency other than the minimum, like when
+	 * issuing a modeset without actually changing any display after
+	 * a system suspend.  So grab the PIPE-A domain, which covers
+	 * the HW blocks needed for the following programming.
+	 */
+	intel_display_power_get(dev_priv, POWER_DOMAIN_PIPE_A);
+
 	if (cdclk >= 320000) /* jump to highest voltage for 400MHz too */
 		cmd = 2;
 	else if (cdclk == 266667)
@@ -549,6 +557,8 @@ static void vlv_set_cdclk(struct drm_i915_private *dev_priv,
 	intel_update_cdclk(dev_priv);
 
 	vlv_program_pfi_credits(dev_priv);
+
+	intel_display_power_put(dev_priv, POWER_DOMAIN_PIPE_A);
 }
 
 static void chv_set_cdclk(struct drm_i915_private *dev_priv,
@@ -568,6 +578,14 @@ static void chv_set_cdclk(struct drm_i915_private *dev_priv,
 		return;
 	}
 
+	/* There are cases where we can end up here with power domains
+	 * off and a CDCLK frequency other than the minimum, like when
+	 * issuing a modeset without actually changing any display after
+	 * a system suspend.  So grab the PIPE-A domain, which covers
+	 * the HW blocks needed for the following programming.
+	 */
+	intel_display_power_get(dev_priv, POWER_DOMAIN_PIPE_A);
+
 	/*
 	 * Specs are full of misinformation, but testing on actual
 	 * hardware has shown that we just need to write the desired
@@ -590,6 +608,8 @@ static void chv_set_cdclk(struct drm_i915_private *dev_priv,
 	intel_update_cdclk(dev_priv);
 
 	vlv_program_pfi_credits(dev_priv);
+
+	intel_display_power_put(dev_priv, POWER_DOMAIN_PIPE_A);
 }
 
 static int bdw_calc_cdclk(int max_pixclk)
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index a4487c5b7e37..5b4de719bec3 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -821,9 +821,10 @@ static int gen9_init_workarounds(struct intel_engine_cs *engine)
 	I915_WRITE(BDW_SCRATCH1, I915_READ(BDW_SCRATCH1) |
 		   GEN9_LBS_SLA_RETRY_TIMER_DECREMENT_ENABLE);
 
-	/* WaDisableKillLogic:bxt,skl,kbl,cfl */
-	I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) |
-		   ECOCHK_DIS_TLB);
+	/* WaDisableKillLogic:bxt,skl,kbl */
+	if (!IS_COFFEELAKE(dev_priv))
+		I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) |
+			   ECOCHK_DIS_TLB);
 
 	/* WaClearFlowControlGpgpuContextSave:skl,bxt,kbl,glk,cfl */
 	/* WaDisablePartialInstShootdown:skl,bxt,kbl,glk,cfl */
@@ -894,10 +895,9 @@ static int gen9_init_workarounds(struct intel_engine_cs *engine)
 	WA_SET_BIT_MASKED(HDC_CHICKEN0,
 			  HDC_FORCE_NON_COHERENT);
 
-	/* WaDisableHDCInvalidation:skl,bxt,kbl */
-	if (!IS_COFFEELAKE(dev_priv))
-		I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) |
-			   BDW_DISABLE_HDC_INVALIDATION);
+	/* WaDisableHDCInvalidation:skl,bxt,kbl,cfl */
+	I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) |
+		   BDW_DISABLE_HDC_INVALIDATION);
 
 	/* WaDisableSamplerPowerBypassForSOPingPong:skl,bxt,kbl,cfl */
 	if (IS_SKYLAKE(dev_priv) ||
diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c
index 03347c6ae599..0c4cde6b2e6f 100644
--- a/drivers/gpu/drm/i915/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/intel_fbdev.c
@@ -535,13 +535,14 @@ static void intel_fbdev_destroy(struct intel_fbdev *ifbdev)
 
 	drm_fb_helper_fini(&ifbdev->helper);
 
-	if (ifbdev->fb) {
+	if (ifbdev->vma) {
 		mutex_lock(&ifbdev->helper.dev->struct_mutex);
 		intel_unpin_fb_vma(ifbdev->vma);
 		mutex_unlock(&ifbdev->helper.dev->struct_mutex);
+	}
 
+	if (ifbdev->fb)
 		drm_framebuffer_remove(&ifbdev->fb->base);
-	}
 
 	kfree(ifbdev);
 }
@@ -765,7 +766,7 @@ void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous
 	struct intel_fbdev *ifbdev = dev_priv->fbdev;
 	struct fb_info *info;
 
-	if (!ifbdev || !ifbdev->fb)
+	if (!ifbdev || !ifbdev->vma)
 		return;
 
 	info = ifbdev->helper.fbdev;
@@ -812,7 +813,7 @@ void intel_fbdev_output_poll_changed(struct drm_device *dev)
 {
 	struct intel_fbdev *ifbdev = to_i915(dev)->fbdev;
 
-	if (ifbdev && ifbdev->fb)
+	if (ifbdev && ifbdev->vma)
 		drm_fb_helper_hotplug_event(&ifbdev->helper);
 }
 
@@ -824,7 +825,7 @@ void intel_fbdev_restore_mode(struct drm_device *dev)
 		return;
 
 	intel_fbdev_sync(ifbdev);
-	if (!ifbdev->fb)
+	if (!ifbdev->vma)
 		return;
 
 	if (drm_fb_helper_restore_fbdev_mode_unlocked(&ifbdev->helper) == 0)
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/selftests/i915_gem_dmabuf.c
index d15cc9d3a5cd..89dc25a5a53b 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_dmabuf.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_dmabuf.c
@@ -246,9 +246,9 @@ static int igt_dmabuf_export_vmap(void *arg)
 	i915_gem_object_put(obj);
 
 	ptr = dma_buf_vmap(dmabuf);
-	if (IS_ERR(ptr)) {
-		err = PTR_ERR(ptr);
-		pr_err("dma_buf_vmap failed with err=%d\n", err);
+	if (!ptr) {
+		pr_err("dma_buf_vmap failed\n");
+		err = -ENOMEM;
 		goto out;
 	}
 
diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile
index bf2e5be1ab30..e37b55a23a65 100644
--- a/drivers/gpu/drm/mediatek/Makefile
+++ b/drivers/gpu/drm/mediatek/Makefile
@@ -1,4 +1,5 @@
-mediatek-drm-y := mtk_disp_ovl.o \
+mediatek-drm-y := mtk_disp_color.o \
+		  mtk_disp_ovl.o \
 		  mtk_disp_rdma.o \
 		  mtk_drm_crtc.o \
 		  mtk_drm_ddp.o \
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_color.c b/drivers/gpu/drm/mediatek/mtk_disp_color.c
new file mode 100644
index 000000000000..ef79a6d55646
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_disp_color.c
@@ -0,0 +1,176 @@
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <drm/drmP.h>
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/platform_device.h>
+
+#include "mtk_drm_crtc.h"
+#include "mtk_drm_ddp_comp.h"
+
+#define DISP_COLOR_CFG_MAIN			0x0400
+#define DISP_COLOR_START_MT2701			0x0f00
+#define DISP_COLOR_START_MT8173			0x0c00
+#define DISP_COLOR_START(comp)			((comp)->data->color_offset)
+#define DISP_COLOR_WIDTH(comp)			(DISP_COLOR_START(comp) + 0x50)
+#define DISP_COLOR_HEIGHT(comp)			(DISP_COLOR_START(comp) + 0x54)
+
+#define COLOR_BYPASS_ALL			BIT(7)
+#define COLOR_SEQ_SEL				BIT(13)
+
+struct mtk_disp_color_data {
+	unsigned int color_offset;
+};
+
+/**
+ * struct mtk_disp_color - DISP_COLOR driver structure
+ * @ddp_comp - structure containing type enum and hardware resources
+ * @crtc - associated crtc to report irq events to
+ */
+struct mtk_disp_color {
+	struct mtk_ddp_comp			ddp_comp;
+	struct drm_crtc				*crtc;
+	const struct mtk_disp_color_data	*data;
+};
+
+static inline struct mtk_disp_color *comp_to_color(struct mtk_ddp_comp *comp)
+{
+	return container_of(comp, struct mtk_disp_color, ddp_comp);
+}
+
+static void mtk_color_config(struct mtk_ddp_comp *comp, unsigned int w,
+			     unsigned int h, unsigned int vrefresh,
+			     unsigned int bpc)
+{
+	struct mtk_disp_color *color = comp_to_color(comp);
+
+	writel(w, comp->regs + DISP_COLOR_WIDTH(color));
+	writel(h, comp->regs + DISP_COLOR_HEIGHT(color));
+}
+
+static void mtk_color_start(struct mtk_ddp_comp *comp)
+{
+	struct mtk_disp_color *color = comp_to_color(comp);
+
+	writel(COLOR_BYPASS_ALL | COLOR_SEQ_SEL,
+	       comp->regs + DISP_COLOR_CFG_MAIN);
+	writel(0x1, comp->regs + DISP_COLOR_START(color));
+}
+
+static const struct mtk_ddp_comp_funcs mtk_disp_color_funcs = {
+	.config = mtk_color_config,
+	.start = mtk_color_start,
+};
+
+static int mtk_disp_color_bind(struct device *dev, struct device *master,
+			       void *data)
+{
+	struct mtk_disp_color *priv = dev_get_drvdata(dev);
+	struct drm_device *drm_dev = data;
+	int ret;
+
+	ret = mtk_ddp_comp_register(drm_dev, &priv->ddp_comp);
+	if (ret < 0) {
+		dev_err(dev, "Failed to register component %s: %d\n",
+			dev->of_node->full_name, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static void mtk_disp_color_unbind(struct device *dev, struct device *master,
+				  void *data)
+{
+	struct mtk_disp_color *priv = dev_get_drvdata(dev);
+	struct drm_device *drm_dev = data;
+
+	mtk_ddp_comp_unregister(drm_dev, &priv->ddp_comp);
+}
+
+static const struct component_ops mtk_disp_color_component_ops = {
+	.bind	= mtk_disp_color_bind,
+	.unbind = mtk_disp_color_unbind,
+};
+
+static int mtk_disp_color_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct mtk_disp_color *priv;
+	int comp_id;
+	int ret;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	comp_id = mtk_ddp_comp_get_id(dev->of_node, MTK_DISP_COLOR);
+	if (comp_id < 0) {
+		dev_err(dev, "Failed to identify by alias: %d\n", comp_id);
+		return comp_id;
+	}
+
+	ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id,
+				&mtk_disp_color_funcs);
+	if (ret) {
+		dev_err(dev, "Failed to initialize component: %d\n", ret);
+		return ret;
+	}
+
+	priv->data = of_device_get_match_data(dev);
+
+	platform_set_drvdata(pdev, priv);
+
+	ret = component_add(dev, &mtk_disp_color_component_ops);
+	if (ret)
+		dev_err(dev, "Failed to add component: %d\n", ret);
+
+	return ret;
+}
+
+static int mtk_disp_color_remove(struct platform_device *pdev)
+{
+	component_del(&pdev->dev, &mtk_disp_color_component_ops);
+
+	return 0;
+}
+
+static const struct mtk_disp_color_data mt2701_color_driver_data = {
+	.color_offset = DISP_COLOR_START_MT2701,
+};
+
+static const struct mtk_disp_color_data mt8173_color_driver_data = {
+	.color_offset = DISP_COLOR_START_MT8173,
+};
+
+static const struct of_device_id mtk_disp_color_driver_dt_match[] = {
+	{ .compatible = "mediatek,mt2701-disp-color",
+	  .data = &mt2701_color_driver_data},
+	{ .compatible = "mediatek,mt8173-disp-color",
+	  .data = &mt8173_color_driver_data},
+	{},
+};
+MODULE_DEVICE_TABLE(of, mtk_disp_color_driver_dt_match);
+
+struct platform_driver mtk_disp_color_driver = {
+	.probe		= mtk_disp_color_probe,
+	.remove		= mtk_disp_color_remove,
+	.driver		= {
+		.name	= "mediatek-disp-color",
+		.owner	= THIS_MODULE,
+		.of_match_table = mtk_disp_color_driver_dt_match,
+	},
+};
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
index a14d7d64d7b1..35bc5babdbf7 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
@@ -42,9 +42,12 @@
 #define	OVL_RDMA_MEM_GMC	0x40402020
 
 #define OVL_CON_BYTE_SWAP	BIT(24)
+#define OVL_CON_MTX_YUV_TO_RGB	(6 << 16)
 #define OVL_CON_CLRFMT_RGB	(1 << 12)
 #define OVL_CON_CLRFMT_RGBA8888	(2 << 12)
 #define OVL_CON_CLRFMT_ARGB8888	(3 << 12)
+#define OVL_CON_CLRFMT_UYVY	(4 << 12)
+#define OVL_CON_CLRFMT_YUYV	(5 << 12)
 #define OVL_CON_CLRFMT_RGB565(ovl)	((ovl)->data->fmt_rgb565_is_0 ? \
 					0 : OVL_CON_CLRFMT_RGB)
 #define OVL_CON_CLRFMT_RGB888(ovl)	((ovl)->data->fmt_rgb565_is_0 ? \
@@ -176,6 +179,10 @@ static unsigned int ovl_fmt_convert(struct mtk_disp_ovl *ovl, unsigned int fmt)
 	case DRM_FORMAT_XBGR8888:
 	case DRM_FORMAT_ABGR8888:
 		return OVL_CON_CLRFMT_RGBA8888 | OVL_CON_BYTE_SWAP;
+	case DRM_FORMAT_UYVY:
+		return OVL_CON_CLRFMT_UYVY | OVL_CON_MTX_YUV_TO_RGB;
+	case DRM_FORMAT_YUYV:
+		return OVL_CON_CLRFMT_YUYV | OVL_CON_MTX_YUV_TO_RGB;
 	}
 }
 
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index 6582e1f56d37..cb32c9369f3a 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -559,6 +559,8 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
 	mtk_crtc->ddp_comp = devm_kmalloc_array(dev, mtk_crtc->ddp_comp_nr,
 						sizeof(*mtk_crtc->ddp_comp),
 						GFP_KERNEL);
+	if (!mtk_crtc->ddp_comp)
+		return -ENOMEM;
 
 	mtk_crtc->mutex = mtk_disp_mutex_get(priv->mutex_dev, pipe);
 	if (IS_ERR(mtk_crtc->mutex)) {
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index 8b52416b6e41..07d7ea2268ef 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -38,13 +38,6 @@
 
 #define DISP_REG_UFO_START			0x0000
 
-#define DISP_COLOR_CFG_MAIN			0x0400
-#define DISP_COLOR_START_MT2701			0x0f00
-#define DISP_COLOR_START_MT8173			0x0c00
-#define DISP_COLOR_START(comp)			((comp)->data->color_offset)
-#define DISP_COLOR_WIDTH(comp)			(DISP_COLOR_START(comp) + 0x50)
-#define DISP_COLOR_HEIGHT(comp)			(DISP_COLOR_START(comp) + 0x54)
-
 #define DISP_AAL_EN				0x0000
 #define DISP_AAL_SIZE				0x0030
 
@@ -55,9 +48,6 @@
 
 #define LUT_10BIT_MASK				0x03ff
 
-#define COLOR_BYPASS_ALL			BIT(7)
-#define COLOR_SEQ_SEL				BIT(13)
-
 #define OD_RELAYMODE				BIT(0)
 
 #define UFO_BYPASS				BIT(2)
@@ -82,20 +72,6 @@
 #define DITHER_ADD_LSHIFT_G(x)			(((x) & 0x7) << 4)
 #define DITHER_ADD_RSHIFT_G(x)			(((x) & 0x7) << 0)
 
-struct mtk_disp_color_data {
-	unsigned int color_offset;
-};
-
-struct mtk_disp_color {
-	struct mtk_ddp_comp			ddp_comp;
-	const struct mtk_disp_color_data	*data;
-};
-
-static inline struct mtk_disp_color *comp_to_color(struct mtk_ddp_comp *comp)
-{
-	return container_of(comp, struct mtk_disp_color, ddp_comp);
-}
-
 void mtk_dither_set(struct mtk_ddp_comp *comp, unsigned int bpc,
 		    unsigned int CFG)
 {
@@ -119,25 +95,6 @@ void mtk_dither_set(struct mtk_ddp_comp *comp, unsigned int bpc,
 	}
 }
 
-static void mtk_color_config(struct mtk_ddp_comp *comp, unsigned int w,
-			     unsigned int h, unsigned int vrefresh,
-			     unsigned int bpc)
-{
-	struct mtk_disp_color *color = comp_to_color(comp);
-
-	writel(w, comp->regs + DISP_COLOR_WIDTH(color));
-	writel(h, comp->regs + DISP_COLOR_HEIGHT(color));
-}
-
-static void mtk_color_start(struct mtk_ddp_comp *comp)
-{
-	struct mtk_disp_color *color = comp_to_color(comp);
-
-	writel(COLOR_BYPASS_ALL | COLOR_SEQ_SEL,
-	       comp->regs + DISP_COLOR_CFG_MAIN);
-	writel(0x1, comp->regs + DISP_COLOR_START(color));
-}
-
 static void mtk_od_config(struct mtk_ddp_comp *comp, unsigned int w,
 			  unsigned int h, unsigned int vrefresh,
 			  unsigned int bpc)
@@ -229,11 +186,6 @@ static const struct mtk_ddp_comp_funcs ddp_gamma = {
 	.stop = mtk_gamma_stop,
 };
 
-static const struct mtk_ddp_comp_funcs ddp_color = {
-	.config = mtk_color_config,
-	.start = mtk_color_start,
-};
-
 static const struct mtk_ddp_comp_funcs ddp_od = {
 	.config = mtk_od_config,
 	.start = mtk_od_start,
@@ -268,8 +220,8 @@ struct mtk_ddp_comp_match {
 static const struct mtk_ddp_comp_match mtk_ddp_matches[DDP_COMPONENT_ID_MAX] = {
 	[DDP_COMPONENT_AAL]	= { MTK_DISP_AAL,	0, &ddp_aal },
 	[DDP_COMPONENT_BLS]	= { MTK_DISP_BLS,	0, NULL },
-	[DDP_COMPONENT_COLOR0]	= { MTK_DISP_COLOR,	0, &ddp_color },
-	[DDP_COMPONENT_COLOR1]	= { MTK_DISP_COLOR,	1, &ddp_color },
+	[DDP_COMPONENT_COLOR0]	= { MTK_DISP_COLOR,	0, NULL },
+	[DDP_COMPONENT_COLOR1]	= { MTK_DISP_COLOR,	1, NULL },
 	[DDP_COMPONENT_DPI0]	= { MTK_DPI,		0, NULL },
 	[DDP_COMPONENT_DSI0]	= { MTK_DSI,		0, NULL },
 	[DDP_COMPONENT_DSI1]	= { MTK_DSI,		1, NULL },
@@ -286,22 +238,6 @@ static const struct mtk_ddp_comp_match mtk_ddp_matches[DDP_COMPONENT_ID_MAX] = {
 	[DDP_COMPONENT_WDMA1]	= { MTK_DISP_WDMA,	1, NULL },
 };
 
-static const struct mtk_disp_color_data mt2701_color_driver_data = {
-	.color_offset = DISP_COLOR_START_MT2701,
-};
-
-static const struct mtk_disp_color_data mt8173_color_driver_data = {
-	.color_offset = DISP_COLOR_START_MT8173,
-};
-
-static const struct of_device_id mtk_disp_color_driver_dt_match[] = {
-	{ .compatible = "mediatek,mt2701-disp-color",
-	  .data = &mt2701_color_driver_data},
-	{ .compatible = "mediatek,mt8173-disp-color",
-	  .data = &mt8173_color_driver_data},
-	{},
-};
-
 int mtk_ddp_comp_get_id(struct device_node *node,
 			enum mtk_ddp_comp_type comp_type)
 {
@@ -324,23 +260,11 @@ int mtk_ddp_comp_init(struct device *dev, struct device_node *node,
 	enum mtk_ddp_comp_type type;
 	struct device_node *larb_node;
 	struct platform_device *larb_pdev;
-	const struct of_device_id *match;
-	struct mtk_disp_color *color;
 
 	if (comp_id < 0 || comp_id >= DDP_COMPONENT_ID_MAX)
 		return -EINVAL;
 
 	type = mtk_ddp_matches[comp_id].type;
-	if (type == MTK_DISP_COLOR) {
-		devm_kfree(dev, comp);
-		color = devm_kzalloc(dev, sizeof(*color), GFP_KERNEL);
-		if (!color)
-			return -ENOMEM;
-
-		match = of_match_node(mtk_disp_color_driver_dt_match, node);
-		color->data = match->data;
-		comp = &color->ddp_comp;
-	}
 
 	comp->id = comp_id;
 	comp->funcs = funcs ?: mtk_ddp_matches[comp_id].funcs;
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index f6c8ec4c7dbc..41d2cffe953e 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -439,11 +439,12 @@ static int mtk_drm_probe(struct platform_device *pdev)
 		private->comp_node[comp_id] = of_node_get(node);
 
 		/*
-		 * Currently only the OVL, RDMA, DSI, and DPI blocks have
+		 * Currently only the COLOR, OVL, RDMA, DSI, and DPI blocks have
 		 * separate component platform drivers and initialize their own
 		 * DDP component structure. The others are initialized here.
 		 */
-		if (comp_type == MTK_DISP_OVL ||
+		if (comp_type == MTK_DISP_COLOR ||
+		    comp_type == MTK_DISP_OVL ||
 		    comp_type == MTK_DISP_RDMA ||
 		    comp_type == MTK_DSI ||
 		    comp_type == MTK_DPI) {
@@ -566,6 +567,7 @@ static struct platform_driver mtk_drm_platform_driver = {
 
 static struct platform_driver * const mtk_drm_drivers[] = {
 	&mtk_ddp_driver,
+	&mtk_disp_color_driver,
 	&mtk_disp_ovl_driver,
 	&mtk_disp_rdma_driver,
 	&mtk_dpi_driver,
@@ -576,33 +578,14 @@ static struct platform_driver * const mtk_drm_drivers[] = {
 
 static int __init mtk_drm_init(void)
 {
-	int ret;
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(mtk_drm_drivers); i++) {
-		ret = platform_driver_register(mtk_drm_drivers[i]);
-		if (ret < 0) {
-			pr_err("Failed to register %s driver: %d\n",
-			       mtk_drm_drivers[i]->driver.name, ret);
-			goto err;
-		}
-	}
-
-	return 0;
-
-err:
-	while (--i >= 0)
-		platform_driver_unregister(mtk_drm_drivers[i]);
-
-	return ret;
+	return platform_register_drivers(mtk_drm_drivers,
+					 ARRAY_SIZE(mtk_drm_drivers));
 }
 
 static void __exit mtk_drm_exit(void)
 {
-	int i;
-
-	for (i = ARRAY_SIZE(mtk_drm_drivers) - 1; i >= 0; i--)
-		platform_driver_unregister(mtk_drm_drivers[i]);
+	platform_unregister_drivers(mtk_drm_drivers,
+				    ARRAY_SIZE(mtk_drm_drivers));
 }
 
 module_init(mtk_drm_init);
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
index aef8747d810b..c3378c452c0a 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
@@ -59,6 +59,7 @@ struct mtk_drm_private {
 };
 
 extern struct platform_driver mtk_ddp_driver;
+extern struct platform_driver mtk_disp_color_driver;
 extern struct platform_driver mtk_disp_ovl_driver;
 extern struct platform_driver mtk_disp_rdma_driver;
 extern struct platform_driver mtk_dpi_driver;
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
index e405e89ed5e5..1a59b9ab4aa8 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
@@ -28,6 +28,8 @@ static const u32 formats[] = {
 	DRM_FORMAT_XRGB8888,
 	DRM_FORMAT_ARGB8888,
 	DRM_FORMAT_RGB565,
+	DRM_FORMAT_UYVY,
+	DRM_FORMAT_YUYV,
 };
 
 static void mtk_plane_reset(struct drm_plane *plane)
diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
index b5cc6e12334c..97253c8f813b 100644
--- a/drivers/gpu/drm/mediatek/mtk_dsi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
@@ -930,7 +930,7 @@ static u32 mtk_dsi_recv_cnt(u8 type, u8 *read_data)
 		DRM_INFO("type is 0x02, try again\n");
 		break;
 	default:
-		DRM_INFO("type(0x%x) cannot be non-recognite\n", type);
+		DRM_INFO("type(0x%x) not recognized\n", type);
 		break;
 	}
 
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index 0a4ffd724146..71eb4fbbfc85 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -1778,33 +1778,14 @@ static struct platform_driver * const mtk_hdmi_drivers[] = {
 
 static int __init mtk_hdmitx_init(void)
 {
-	int ret;
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(mtk_hdmi_drivers); i++) {
-		ret = platform_driver_register(mtk_hdmi_drivers[i]);
-		if (ret < 0) {
-			pr_err("Failed to register %s driver: %d\n",
-			       mtk_hdmi_drivers[i]->driver.name, ret);
-			goto err;
-		}
-	}
-
-	return 0;
-
-err:
-	while (--i >= 0)
-		platform_driver_unregister(mtk_hdmi_drivers[i]);
-
-	return ret;
+	return platform_register_drivers(mtk_hdmi_drivers,
+					 ARRAY_SIZE(mtk_hdmi_drivers));
 }
 
 static void __exit mtk_hdmitx_exit(void)
 {
-	int i;
-
-	for (i = ARRAY_SIZE(mtk_hdmi_drivers) - 1; i >= 0; i--)
-		platform_driver_unregister(mtk_hdmi_drivers[i]);
+	platform_unregister_drivers(mtk_hdmi_drivers,
+				    ARRAY_SIZE(mtk_hdmi_drivers));
 }
 
 module_init(mtk_hdmitx_init);
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index fa4f8f008e4d..e67ed383e11b 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -31,6 +31,7 @@
 #include "radeon_asic.h"
 #include "atom.h"
 #include <linux/backlight.h>
+#include <linux/dmi.h>
 
 extern int atom_debug;
 
@@ -2184,9 +2185,17 @@ int radeon_atom_pick_dig_encoder(struct drm_encoder *encoder, int fe_idx)
 		goto assigned;
 	}
 
-	/* on DCE32 and encoder can driver any block so just crtc id */
+	/*
+	 * On DCE32 any encoder can drive any block so usually just use crtc id,
+	 * but Apple thinks different at least on iMac10,1, so there use linkb,
+	 * otherwise the internal eDP panel will stay dark.
+	 */
 	if (ASIC_IS_DCE32(rdev)) {
-		enc_idx = radeon_crtc->crtc_id;
+		if (dmi_match(DMI_PRODUCT_NAME, "iMac10,1"))
+			enc_idx = (dig->linkb) ? 1 : 0;
+		else
+			enc_idx = radeon_crtc->crtc_id;
+
 		goto assigned;
 	}
 
diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c
index 14fa1f8351e8..9b0b0588bbed 100644
--- a/drivers/gpu/drm/rockchip/cdn-dp-core.c
+++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c
@@ -1195,7 +1195,7 @@ static int cdn_dp_probe(struct platform_device *pdev)
 			continue;
 
 		port = devm_kzalloc(dev, sizeof(*port), GFP_KERNEL);
-		if (!dp)
+		if (!port)
 			return -ENOMEM;
 
 		port->extcon = extcon;
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
index 47905faf5586..c7e96b82cf63 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
@@ -45,13 +45,13 @@ struct rockchip_crtc_state {
  *
  * @crtc: array of enabled CRTCs, used to map from "pipe" to drm_crtc.
  * @num_pipe: number of pipes for this device.
+ * @mm_lock: protect drm_mm on multi-threads.
  */
 struct rockchip_drm_private {
 	struct drm_fb_helper fbdev_helper;
 	struct drm_gem_object *fbdev_bo;
 	struct drm_atomic_state *state;
 	struct iommu_domain *domain;
-	/* protect drm_mm on multi-threads */
 	struct mutex mm_lock;
 	struct drm_mm mm;
 	struct list_head psr_list;
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
index df9e57064f19..b74ac717e56a 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
@@ -29,12 +29,11 @@ static int rockchip_gem_iommu_map(struct rockchip_gem_object *rk_obj)
 	ssize_t ret;
 
 	mutex_lock(&private->mm_lock);
-
 	ret = drm_mm_insert_node_generic(&private->mm, &rk_obj->mm,
 					 rk_obj->base.size, PAGE_SIZE,
 					 0, 0);
-
 	mutex_unlock(&private->mm_lock);
+
 	if (ret < 0) {
 		DRM_ERROR("out of I/O virtual memory: %zd\n", ret);
 		return ret;
@@ -56,7 +55,9 @@ static int rockchip_gem_iommu_map(struct rockchip_gem_object *rk_obj)
 	return 0;
 
 err_remove_node:
+	mutex_lock(&private->mm_lock);
 	drm_mm_remove_node(&rk_obj->mm);
+	mutex_unlock(&private->mm_lock);
 
 	return ret;
 }