Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

7 files changed, 6592 insertions, 0 deletions

diff --git a/drivers/media/platform/renesas/rcar-vin/Kconfig b/drivers/media/platform/renesas/rcar-vin/Kconfig
new file mode 100644
index 000000000..de55fe63d
--- /dev/null
+++ b/drivers/media/platform/renesas/rcar-vin/Kconfig
@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: GPL-2.0
+config VIDEO_RCAR_CSI2
+	tristate "R-Car MIPI CSI-2 Receiver"
+	depends on V4L_PLATFORM_DRIVERS
+	depends on VIDEO_DEV && OF
+	depends on ARCH_RENESAS || COMPILE_TEST
+	select MEDIA_CONTROLLER
+	select VIDEO_V4L2_SUBDEV_API
+	select RESET_CONTROLLER
+	select V4L2_FWNODE
+	help
+	  Support for Renesas R-Car MIPI CSI-2 receiver.
+	  Supports R-Car Gen3 and RZ/G2 SoCs.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called rcar-csi2.
+
+config VIDEO_RCAR_VIN
+	tristate "R-Car Video Input (VIN) Driver"
+	depends on V4L_PLATFORM_DRIVERS
+	depends on VIDEO_DEV && OF
+	depends on ARCH_RENESAS || COMPILE_TEST
+	select MEDIA_CONTROLLER
+	select VIDEO_V4L2_SUBDEV_API
+	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_FWNODE
+	help
+	  Support for Renesas R-Car Video Input (VIN) driver.
+	  Supports R-Car Gen{2,3} and RZ/G{1,2} SoCs.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called rcar-vin.
diff --git a/drivers/media/platform/renesas/rcar-vin/Makefile b/drivers/media/platform/renesas/rcar-vin/Makefile
new file mode 100644
index 000000000..00d809f5d
--- /dev/null
+++ b/drivers/media/platform/renesas/rcar-vin/Makefile
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+rcar-vin-objs = rcar-core.o rcar-dma.o rcar-v4l2.o
+
+obj-$(CONFIG_VIDEO_RCAR_CSI2) += rcar-csi2.o
+obj-$(CONFIG_VIDEO_RCAR_VIN) += rcar-vin.o
diff --git a/drivers/media/platform/renesas/rcar-vin/rcar-core.c b/drivers/media/platform/renesas/rcar-vin/rcar-core.c
new file mode 100644
index 000000000..809c3a38c
--- /dev/null
+++ b/drivers/media/platform/renesas/rcar-vin/rcar-core.c
@@ -0,0 +1,1456 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Driver for Renesas R-Car VIN
+ *
+ * Copyright (C) 2016 Renesas Electronics Corp.
+ * Copyright (C) 2011-2013 Renesas Solutions Corp.
+ * Copyright (C) 2013 Cogent Embedded, Inc., <source@cogentembedded.com>
+ * Copyright (C) 2008 Magnus Damm
+ *
+ * Based on the soc-camera rcar_vin driver
+ */
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_graph.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/slab.h>
+
+#include <media/v4l2-async.h>
+#include <media/v4l2-fwnode.h>
+#include <media/v4l2-mc.h>
+
+#include "rcar-vin.h"
+
+/*
+ * The companion CSI-2 receiver driver (rcar-csi2) is known
+ * and we know it has one source pad (pad 0) and four sink
+ * pads (pad 1-4). So to translate a pad on the remote
+ * CSI-2 receiver to/from the VIN internal channel number simply
+ * subtract/add one from the pad/channel number.
+ */
+#define rvin_group_csi_pad_to_channel(pad) ((pad) - 1)
+#define rvin_group_csi_channel_to_pad(channel) ((channel) + 1)
+
+/*
+ * Not all VINs are created equal, master VINs control the
+ * routing for other VIN's. We can figure out which VIN is
+ * master by looking at a VINs id.
+ */
+#define rvin_group_id_to_master(vin) ((vin) < 4 ? 0 : 4)
+
+#define v4l2_dev_to_vin(d)	container_of(d, struct rvin_dev, v4l2_dev)
+
+/* -----------------------------------------------------------------------------
+ * Gen3 Group Allocator
+ */
+
+/* FIXME:  This should if we find a system that supports more
+ * than one group for the whole system be replaced with a linked
+ * list of groups. And eventually all of this should be replaced
+ * with a global device allocator API.
+ *
+ * But for now this works as on all supported systems there will
+ * be only one group for all instances.
+ */
+
+static DEFINE_MUTEX(rvin_group_lock);
+static struct rvin_group *rvin_group_data;
+
+static void rvin_group_cleanup(struct rvin_group *group)
+{
+	media_device_cleanup(&group->mdev);
+	mutex_destroy(&group->lock);
+}
+
+static int rvin_group_init(struct rvin_group *group, struct rvin_dev *vin,
+			   int (*link_setup)(struct rvin_dev *),
+			   const struct media_device_ops *ops)
+{
+	struct media_device *mdev = &group->mdev;
+	const struct of_device_id *match;
+	struct device_node *np;
+
+	mutex_init(&group->lock);
+
+	/* Count number of VINs in the system */
+	group->count = 0;
+	for_each_matching_node(np, vin->dev->driver->of_match_table)
+		if (of_device_is_available(np))
+			group->count++;
+
+	vin_dbg(vin, "found %u enabled VIN's in DT", group->count);
+
+	group->link_setup = link_setup;
+
+	mdev->dev = vin->dev;
+	mdev->ops = ops;
+
+	match = of_match_node(vin->dev->driver->of_match_table,
+			      vin->dev->of_node);
+
+	strscpy(mdev->driver_name, KBUILD_MODNAME, sizeof(mdev->driver_name));
+	strscpy(mdev->model, match->compatible, sizeof(mdev->model));
+
+	media_device_init(mdev);
+
+	return 0;
+}
+
+static void rvin_group_release(struct kref *kref)
+{
+	struct rvin_group *group =
+		container_of(kref, struct rvin_group, refcount);
+
+	mutex_lock(&rvin_group_lock);
+
+	rvin_group_data = NULL;
+
+	rvin_group_cleanup(group);
+
+	kfree(group);
+
+	mutex_unlock(&rvin_group_lock);
+}
+
+static int rvin_group_get(struct rvin_dev *vin,
+			  int (*link_setup)(struct rvin_dev *),
+			  const struct media_device_ops *ops)
+{
+	struct rvin_group *group;
+	u32 id;
+	int ret;
+
+	/* Make sure VIN id is present and sane */
+	ret = of_property_read_u32(vin->dev->of_node, "renesas,id", &id);
+	if (ret) {
+		vin_err(vin, "%pOF: No renesas,id property found\n",
+			vin->dev->of_node);
+		return -EINVAL;
+	}
+
+	if (id >= RCAR_VIN_NUM) {
+		vin_err(vin, "%pOF: Invalid renesas,id '%u'\n",
+			vin->dev->of_node, id);
+		return -EINVAL;
+	}
+
+	/* Join or create a VIN group */
+	mutex_lock(&rvin_group_lock);
+	if (rvin_group_data) {
+		group = rvin_group_data;
+		kref_get(&group->refcount);
+	} else {
+		group = kzalloc(sizeof(*group), GFP_KERNEL);
+		if (!group) {
+			ret = -ENOMEM;
+			goto err_group;
+		}
+
+		ret = rvin_group_init(group, vin, link_setup, ops);
+		if (ret) {
+			kfree(group);
+			vin_err(vin, "Failed to initialize group\n");
+			goto err_group;
+		}
+
+		kref_init(&group->refcount);
+
+		rvin_group_data = group;
+	}
+	mutex_unlock(&rvin_group_lock);
+
+	/* Add VIN to group */
+	mutex_lock(&group->lock);
+
+	if (group->vin[id]) {
+		vin_err(vin, "Duplicate renesas,id property value %u\n", id);
+		mutex_unlock(&group->lock);
+		kref_put(&group->refcount, rvin_group_release);
+		return -EINVAL;
+	}
+
+	group->vin[id] = vin;
+
+	vin->id = id;
+	vin->group = group;
+	vin->v4l2_dev.mdev = &group->mdev;
+
+	mutex_unlock(&group->lock);
+
+	return 0;
+err_group:
+	mutex_unlock(&rvin_group_lock);
+	return ret;
+}
+
+static void rvin_group_put(struct rvin_dev *vin)
+{
+	struct rvin_group *group = vin->group;
+
+	mutex_lock(&group->lock);
+
+	vin->group = NULL;
+	vin->v4l2_dev.mdev = NULL;
+
+	if (WARN_ON(group->vin[vin->id] != vin))
+		goto out;
+
+	group->vin[vin->id] = NULL;
+out:
+	mutex_unlock(&group->lock);
+
+	kref_put(&group->refcount, rvin_group_release);
+}
+
+/* group lock should be held when calling this function. */
+static int rvin_group_entity_to_remote_id(struct rvin_group *group,
+					  struct media_entity *entity)
+{
+	struct v4l2_subdev *sd;
+	unsigned int i;
+
+	sd = media_entity_to_v4l2_subdev(entity);
+
+	for (i = 0; i < RVIN_REMOTES_MAX; i++)
+		if (group->remotes[i].subdev == sd)
+			return i;
+
+	return -ENODEV;
+}
+
+static int rvin_group_notify_complete(struct v4l2_async_notifier *notifier)
+{
+	struct rvin_dev *vin = v4l2_dev_to_vin(notifier->v4l2_dev);
+	unsigned int i;
+	int ret;
+
+	ret = media_device_register(&vin->group->mdev);
+	if (ret)
+		return ret;
+
+	ret = v4l2_device_register_subdev_nodes(&vin->v4l2_dev);
+	if (ret) {
+		vin_err(vin, "Failed to register subdev nodes\n");
+		return ret;
+	}
+
+	/* Register all video nodes for the group. */
+	for (i = 0; i < RCAR_VIN_NUM; i++) {
+		if (vin->group->vin[i] &&
+		    !video_is_registered(&vin->group->vin[i]->vdev)) {
+			ret = rvin_v4l2_register(vin->group->vin[i]);
+			if (ret)
+				return ret;
+		}
+	}
+
+	return vin->group->link_setup(vin);
+}
+
+static void rvin_group_notify_unbind(struct v4l2_async_notifier *notifier,
+				     struct v4l2_subdev *subdev,
+				     struct v4l2_async_connection *asc)
+{
+	struct rvin_dev *vin = v4l2_dev_to_vin(notifier->v4l2_dev);
+	unsigned int i;
+
+	for (i = 0; i < RCAR_VIN_NUM; i++)
+		if (vin->group->vin[i])
+			rvin_v4l2_unregister(vin->group->vin[i]);
+
+	mutex_lock(&vin->group->lock);
+
+	for (i = 0; i < RVIN_CSI_MAX; i++) {
+		if (vin->group->remotes[i].asc != asc)
+			continue;
+		vin->group->remotes[i].subdev = NULL;
+		vin_dbg(vin, "Unbind %s from slot %u\n", subdev->name, i);
+		break;
+	}
+
+	mutex_unlock(&vin->group->lock);
+
+	media_device_unregister(&vin->group->mdev);
+}
+
+static int rvin_group_notify_bound(struct v4l2_async_notifier *notifier,
+				   struct v4l2_subdev *subdev,
+				   struct v4l2_async_connection *asc)
+{
+	struct rvin_dev *vin = v4l2_dev_to_vin(notifier->v4l2_dev);
+	unsigned int i;
+
+	mutex_lock(&vin->group->lock);
+
+	for (i = 0; i < RVIN_CSI_MAX; i++) {
+		if (vin->group->remotes[i].asc != asc)
+			continue;
+		vin->group->remotes[i].subdev = subdev;
+		vin_dbg(vin, "Bound %s to slot %u\n", subdev->name, i);
+		break;
+	}
+
+	mutex_unlock(&vin->group->lock);
+
+	return 0;
+}
+
+static const struct v4l2_async_notifier_operations rvin_group_notify_ops = {
+	.bound = rvin_group_notify_bound,
+	.unbind = rvin_group_notify_unbind,
+	.complete = rvin_group_notify_complete,
+};
+
+static int rvin_group_parse_of(struct rvin_dev *vin, unsigned int port,
+			       unsigned int id)
+{
+	struct fwnode_handle *ep, *fwnode;
+	struct v4l2_fwnode_endpoint vep = {
+		.bus_type = V4L2_MBUS_CSI2_DPHY,
+	};
+	struct v4l2_async_connection *asc;
+	int ret;
+
+	ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(vin->dev), port, id, 0);
+	if (!ep)
+		return 0;
+
+	fwnode = fwnode_graph_get_remote_endpoint(ep);
+	ret = v4l2_fwnode_endpoint_parse(ep, &vep);
+	fwnode_handle_put(ep);
+	if (ret) {
+		vin_err(vin, "Failed to parse %pOF\n", to_of_node(fwnode));
+		ret = -EINVAL;
+		goto out;
+	}
+
+	asc = v4l2_async_nf_add_fwnode(&vin->group->notifier, fwnode,
+				       struct v4l2_async_connection);
+	if (IS_ERR(asc)) {
+		ret = PTR_ERR(asc);
+		goto out;
+	}
+
+	vin->group->remotes[vep.base.id].asc = asc;
+
+	vin_dbg(vin, "Add group OF device %pOF to slot %u\n",
+		to_of_node(fwnode), vep.base.id);
+out:
+	fwnode_handle_put(fwnode);
+
+	return ret;
+}
+
+static void rvin_group_notifier_cleanup(struct rvin_dev *vin)
+{
+	if (&vin->v4l2_dev == vin->group->notifier.v4l2_dev) {
+		v4l2_async_nf_unregister(&vin->group->notifier);
+		v4l2_async_nf_cleanup(&vin->group->notifier);
+	}
+}
+
+static int rvin_group_notifier_init(struct rvin_dev *vin, unsigned int port,
+				    unsigned int max_id)
+{
+	unsigned int count = 0, vin_mask = 0;
+	unsigned int i, id;
+	int ret;
+
+	mutex_lock(&vin->group->lock);
+
+	/* If not all VIN's are registered don't register the notifier. */
+	for (i = 0; i < RCAR_VIN_NUM; i++) {
+		if (vin->group->vin[i]) {
+			count++;
+			vin_mask |= BIT(i);
+		}
+	}
+
+	if (vin->group->count != count) {
+		mutex_unlock(&vin->group->lock);
+		return 0;
+	}
+
+	mutex_unlock(&vin->group->lock);
+
+	v4l2_async_nf_init(&vin->group->notifier, &vin->v4l2_dev);
+
+	/*
+	 * Some subdevices may overlap but the parser function can handle it and
+	 * each subdevice will only be registered once with the group notifier.
+	 */
+	for (i = 0; i < RCAR_VIN_NUM; i++) {
+		if (!(vin_mask & BIT(i)))
+			continue;
+
+		for (id = 0; id < max_id; id++) {
+			if (vin->group->remotes[id].asc)
+				continue;
+
+			ret = rvin_group_parse_of(vin->group->vin[i], port, id);
+			if (ret)
+				return ret;
+		}
+	}
+
+	if (list_empty(&vin->group->notifier.waiting_list))
+		return 0;
+
+	vin->group->notifier.ops = &rvin_group_notify_ops;
+	ret = v4l2_async_nf_register(&vin->group->notifier);
+	if (ret < 0) {
+		vin_err(vin, "Notifier registration failed\n");
+		v4l2_async_nf_cleanup(&vin->group->notifier);
+		return ret;
+	}
+
+	return 0;
+}
+
+/* -----------------------------------------------------------------------------
+ * Controls
+ */
+
+static int rvin_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct rvin_dev *vin =
+		container_of(ctrl->handler, struct rvin_dev, ctrl_handler);
+
+	switch (ctrl->id) {
+	case V4L2_CID_ALPHA_COMPONENT:
+		rvin_set_alpha(vin, ctrl->val);
+		break;
+	}
+
+	return 0;
+}
+
+static const struct v4l2_ctrl_ops rvin_ctrl_ops = {
+	.s_ctrl = rvin_s_ctrl,
+};
+
+static void rvin_free_controls(struct rvin_dev *vin)
+{
+	v4l2_ctrl_handler_free(&vin->ctrl_handler);
+	vin->vdev.ctrl_handler = NULL;
+}
+
+static int rvin_create_controls(struct rvin_dev *vin, struct v4l2_subdev *subdev)
+{
+	int ret;
+
+	ret = v4l2_ctrl_handler_init(&vin->ctrl_handler, 16);
+	if (ret < 0)
+		return ret;
+
+	/* The VIN directly deals with alpha component. */
+	v4l2_ctrl_new_std(&vin->ctrl_handler, &rvin_ctrl_ops,
+			  V4L2_CID_ALPHA_COMPONENT, 0, 255, 1, 255);
+
+	if (vin->ctrl_handler.error) {
+		ret = vin->ctrl_handler.error;
+		rvin_free_controls(vin);
+		return ret;
+	}
+
+	/* For the non-MC mode add controls from the subdevice. */
+	if (subdev) {
+		ret = v4l2_ctrl_add_handler(&vin->ctrl_handler,
+					    subdev->ctrl_handler, NULL, true);
+		if (ret < 0) {
+			rvin_free_controls(vin);
+			return ret;
+		}
+	}
+
+	vin->vdev.ctrl_handler = &vin->ctrl_handler;
+
+	return 0;
+}
+
+/* -----------------------------------------------------------------------------
+ * Async notifier
+ */
+
+static int rvin_find_pad(struct v4l2_subdev *sd, int direction)
+{
+	unsigned int pad;
+
+	if (sd->entity.num_pads <= 1)
+		return 0;
+
+	for (pad = 0; pad < sd->entity.num_pads; pad++)
+		if (sd->entity.pads[pad].flags & direction)
+			return pad;
+
+	return -EINVAL;
+}
+
+/* -----------------------------------------------------------------------------
+ * Parallel async notifier
+ */
+
+/* The vin lock should be held when calling the subdevice attach and detach */
+static int rvin_parallel_subdevice_attach(struct rvin_dev *vin,
+					  struct v4l2_subdev *subdev)
+{
+	struct v4l2_subdev_mbus_code_enum code = {
+		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
+	};
+	int ret;
+
+	/* Find source and sink pad of remote subdevice */
+	ret = rvin_find_pad(subdev, MEDIA_PAD_FL_SOURCE);
+	if (ret < 0)
+		return ret;
+	vin->parallel.source_pad = ret;
+
+	ret = rvin_find_pad(subdev, MEDIA_PAD_FL_SINK);
+	vin->parallel.sink_pad = ret < 0 ? 0 : ret;
+
+	if (vin->info->use_mc) {
+		vin->parallel.subdev = subdev;
+		return 0;
+	}
+
+	/* Find compatible subdevices mbus format */
+	vin->mbus_code = 0;
+	code.index = 0;
+	code.pad = vin->parallel.source_pad;
+	while (!vin->mbus_code &&
+	       !v4l2_subdev_call(subdev, pad, enum_mbus_code, NULL, &code)) {
+		code.index++;
+		switch (code.code) {
+		case MEDIA_BUS_FMT_YUYV8_1X16:
+		case MEDIA_BUS_FMT_UYVY8_1X16:
+		case MEDIA_BUS_FMT_UYVY8_2X8:
+		case MEDIA_BUS_FMT_UYVY10_2X10:
+		case MEDIA_BUS_FMT_RGB888_1X24:
+			vin->mbus_code = code.code;
+			vin_dbg(vin, "Found media bus format for %s: %d\n",
+				subdev->name, vin->mbus_code);
+			break;
+		default:
+			break;
+		}
+	}
+
+	if (!vin->mbus_code) {
+		vin_err(vin, "Unsupported media bus format for %s\n",
+			subdev->name);
+		return -EINVAL;
+	}
+
+	/* Read tvnorms */
+	ret = v4l2_subdev_call(subdev, video, g_tvnorms, &vin->vdev.tvnorms);
+	if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV)
+		return ret;
+
+	/* Read standard */
+	vin->std = V4L2_STD_UNKNOWN;
+	ret = v4l2_subdev_call(subdev, video, g_std, &vin->std);
+	if (ret < 0 && ret != -ENOIOCTLCMD)
+		return ret;
+
+	/* Add the controls */
+	ret = rvin_create_controls(vin, subdev);
+	if (ret < 0)
+		return ret;
+
+	vin->parallel.subdev = subdev;
+
+	return 0;
+}
+
+static void rvin_parallel_subdevice_detach(struct rvin_dev *vin)
+{
+	rvin_v4l2_unregister(vin);
+	vin->parallel.subdev = NULL;
+
+	if (!vin->info->use_mc)
+		rvin_free_controls(vin);
+}
+
+static int rvin_parallel_notify_complete(struct v4l2_async_notifier *notifier)
+{
+	struct rvin_dev *vin = v4l2_dev_to_vin(notifier->v4l2_dev);
+	struct media_entity *source;
+	struct media_entity *sink;
+	int ret;
+
+	ret = v4l2_device_register_subdev_nodes(&vin->v4l2_dev);
+	if (ret < 0) {
+		vin_err(vin, "Failed to register subdev nodes\n");
+		return ret;
+	}
+
+	if (!video_is_registered(&vin->vdev)) {
+		ret = rvin_v4l2_register(vin);
+		if (ret < 0)
+			return ret;
+	}
+
+	if (!vin->info->use_mc)
+		return 0;
+
+	/* If we're running with media-controller, link the subdevs. */
+	source = &vin->parallel.subdev->entity;
+	sink = &vin->vdev.entity;
+
+	ret = media_create_pad_link(source, vin->parallel.source_pad,
+				    sink, vin->parallel.sink_pad, 0);
+	if (ret)
+		vin_err(vin, "Error adding link from %s to %s: %d\n",
+			source->name, sink->name, ret);
+
+	return ret;
+}
+
+static void rvin_parallel_notify_unbind(struct v4l2_async_notifier *notifier,
+					struct v4l2_subdev *subdev,
+					struct v4l2_async_connection *asc)
+{
+	struct rvin_dev *vin = v4l2_dev_to_vin(notifier->v4l2_dev);
+
+	vin_dbg(vin, "unbind parallel subdev %s\n", subdev->name);
+
+	mutex_lock(&vin->lock);
+	rvin_parallel_subdevice_detach(vin);
+	mutex_unlock(&vin->lock);
+}
+
+static int rvin_parallel_notify_bound(struct v4l2_async_notifier *notifier,
+				      struct v4l2_subdev *subdev,
+				      struct v4l2_async_connection *asc)
+{
+	struct rvin_dev *vin = v4l2_dev_to_vin(notifier->v4l2_dev);
+	int ret;
+
+	mutex_lock(&vin->lock);
+	ret = rvin_parallel_subdevice_attach(vin, subdev);
+	mutex_unlock(&vin->lock);
+	if (ret)
+		return ret;
+
+	v4l2_set_subdev_hostdata(subdev, vin);
+
+	vin_dbg(vin, "bound subdev %s source pad: %u sink pad: %u\n",
+		subdev->name, vin->parallel.source_pad,
+		vin->parallel.sink_pad);
+
+	return 0;
+}
+
+static const struct v4l2_async_notifier_operations rvin_parallel_notify_ops = {
+	.bound = rvin_parallel_notify_bound,
+	.unbind = rvin_parallel_notify_unbind,
+	.complete = rvin_parallel_notify_complete,
+};
+
+static int rvin_parallel_parse_of(struct rvin_dev *vin)
+{
+	struct fwnode_handle *ep, *fwnode;
+	struct v4l2_fwnode_endpoint vep = {
+		.bus_type = V4L2_MBUS_UNKNOWN,
+	};
+	struct v4l2_async_connection *asc;
+	int ret;
+
+	ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(vin->dev), 0, 0, 0);
+	if (!ep)
+		return 0;
+
+	fwnode = fwnode_graph_get_remote_endpoint(ep);
+	ret = v4l2_fwnode_endpoint_parse(ep, &vep);
+	fwnode_handle_put(ep);
+	if (ret) {
+		vin_err(vin, "Failed to parse %pOF\n", to_of_node(fwnode));
+		ret = -EINVAL;
+		goto out;
+	}
+
+	switch (vep.bus_type) {
+	case V4L2_MBUS_PARALLEL:
+	case V4L2_MBUS_BT656:
+		vin_dbg(vin, "Found %s media bus\n",
+			vep.bus_type == V4L2_MBUS_PARALLEL ?
+			"PARALLEL" : "BT656");
+		vin->parallel.mbus_type = vep.bus_type;
+		vin->parallel.bus = vep.bus.parallel;
+		break;
+	default:
+		vin_err(vin, "Unknown media bus type\n");
+		ret = -EINVAL;
+		goto out;
+	}
+
+	asc = v4l2_async_nf_add_fwnode(&vin->notifier, fwnode,
+				       struct v4l2_async_connection);
+	if (IS_ERR(asc)) {
+		ret = PTR_ERR(asc);
+		goto out;
+	}
+
+	vin->parallel.asc = asc;
+
+	vin_dbg(vin, "Add parallel OF device %pOF\n", to_of_node(fwnode));
+out:
+	fwnode_handle_put(fwnode);
+
+	return ret;
+}
+
+static void rvin_parallel_cleanup(struct rvin_dev *vin)
+{
+	v4l2_async_nf_unregister(&vin->notifier);
+	v4l2_async_nf_cleanup(&vin->notifier);
+}
+
+static int rvin_parallel_init(struct rvin_dev *vin)
+{
+	int ret;
+
+	v4l2_async_nf_init(&vin->notifier, &vin->v4l2_dev);
+
+	ret = rvin_parallel_parse_of(vin);
+	if (ret)
+		return ret;
+
+	if (!vin->parallel.asc)
+		return -ENODEV;
+
+	vin_dbg(vin, "Found parallel subdevice %pOF\n",
+		to_of_node(vin->parallel.asc->match.fwnode));
+
+	vin->notifier.ops = &rvin_parallel_notify_ops;
+	ret = v4l2_async_nf_register(&vin->notifier);
+	if (ret < 0) {
+		vin_err(vin, "Notifier registration failed\n");
+		v4l2_async_nf_cleanup(&vin->notifier);
+		return ret;
+	}
+
+	return 0;
+}
+
+/* -----------------------------------------------------------------------------
+ * CSI-2
+ */
+
+/*
+ * Link setup for the links between a VIN and a CSI-2 receiver is a bit
+ * complex. The reason for this is that the register controlling routing
+ * is not present in each VIN instance. There are special VINs which
+ * control routing for themselves and other VINs. There are not many
+ * different possible links combinations that can be enabled at the same
+ * time, therefor all already enabled links which are controlled by a
+ * master VIN need to be taken into account when making the decision
+ * if a new link can be enabled or not.
+ *
+ * 1. Find out which VIN the link the user tries to enable is connected to.
+ * 2. Lookup which master VIN controls the links for this VIN.
+ * 3. Start with a bitmask with all bits set.
+ * 4. For each previously enabled link from the master VIN bitwise AND its
+ *    route mask (see documentation for mask in struct rvin_group_route)
+ *    with the bitmask.
+ * 5. Bitwise AND the mask for the link the user tries to enable to the bitmask.
+ * 6. If the bitmask is not empty at this point the new link can be enabled
+ *    while keeping all previous links enabled. Update the CHSEL value of the
+ *    master VIN and inform the user that the link could be enabled.
+ *
+ * Please note that no link can be enabled if any VIN in the group is
+ * currently open.
+ */
+static int rvin_csi2_link_notify(struct media_link *link, u32 flags,
+				 unsigned int notification)
+{
+	struct rvin_group *group = container_of(link->graph_obj.mdev,
+						struct rvin_group, mdev);
+	struct media_entity *entity;
+	struct video_device *vdev;
+	struct rvin_dev *vin;
+	unsigned int i;
+	int csi_id, ret;
+
+	ret = v4l2_pipeline_link_notify(link, flags, notification);
+	if (ret)
+		return ret;
+
+	/* Only care about link enablement for VIN nodes. */
+	if (!(flags & MEDIA_LNK_FL_ENABLED) ||
+	    !is_media_entity_v4l2_video_device(link->sink->entity))
+		return 0;
+
+	/*
+	 * Don't allow link changes if any stream in the graph is active as
+	 * modifying the CHSEL register fields can disrupt running streams.
+	 */
+	media_device_for_each_entity(entity, &group->mdev)
+		if (media_entity_is_streaming(entity))
+			return -EBUSY;
+
+	/* Find the master VIN that controls the routes. */
+	vdev = media_entity_to_video_device(link->sink->entity);
+	vin = container_of(vdev, struct rvin_dev, vdev);
+
+	mutex_lock(&group->lock);
+
+	csi_id = rvin_group_entity_to_remote_id(group, link->source->entity);
+	if (csi_id == -ENODEV) {
+		struct v4l2_subdev *sd;
+
+		/*
+		 * Make sure the source entity subdevice is registered as
+		 * a parallel input of one of the enabled VINs if it is not
+		 * one of the CSI-2 subdevices.
+		 *
+		 * No hardware configuration required for parallel inputs,
+		 * we can return here.
+		 */
+		sd = media_entity_to_v4l2_subdev(link->source->entity);
+		for (i = 0; i < RCAR_VIN_NUM; i++) {
+			if (group->vin[i] &&
+			    group->vin[i]->parallel.subdev == sd) {
+				group->vin[i]->is_csi = false;
+				ret = 0;
+				goto out;
+			}
+		}
+
+		vin_err(vin, "Subdevice %s not registered to any VIN\n",
+			link->source->entity->name);
+		ret = -ENODEV;
+	} else {
+		const struct rvin_group_route *route;
+		unsigned int chsel = UINT_MAX;
+		unsigned int master_id;
+
+		master_id = rvin_group_id_to_master(vin->id);
+
+		if (WARN_ON(!group->vin[master_id])) {
+			ret = -ENODEV;
+			goto out;
+		}
+
+		/* Make sure group is connected to same CSI-2 */
+		for (i = master_id; i < master_id + 4; i++) {
+			struct media_pad *csi_pad;
+
+			if (!group->vin[i])
+				continue;
+
+			/* Get remote CSI-2, if any. */
+			csi_pad = media_pad_remote_pad_first(
+					&group->vin[i]->vdev.entity.pads[0]);
+			if (!csi_pad)
+				continue;
+
+			if (csi_pad->entity != link->source->entity) {
+				vin_dbg(vin, "Already attached to %s\n",
+					csi_pad->entity->name);
+				ret = -EBUSY;
+				goto out;
+			}
+		}
+
+		for (route = vin->info->routes; route->chsel; route++) {
+			if (route->master == master_id && route->csi == csi_id) {
+				chsel = route->chsel;
+				break;
+			}
+		}
+
+		if (chsel == UINT_MAX) {
+			vin_err(vin, "No CHSEL value found\n");
+			ret = -EINVAL;
+			goto out;
+		}
+
+		ret = rvin_set_channel_routing(group->vin[master_id], chsel);
+		if (ret)
+			goto out;
+
+		vin->is_csi = true;
+	}
+out:
+	mutex_unlock(&group->lock);
+
+	return ret;
+}
+
+static const struct media_device_ops rvin_csi2_media_ops = {
+	.link_notify = rvin_csi2_link_notify,
+};
+
+static int rvin_csi2_create_link(struct rvin_group *group, unsigned int id,
+				 const struct rvin_group_route *route)
+{
+	struct media_entity *source = &group->remotes[route->csi].subdev->entity;
+	struct media_entity *sink = &group->vin[id]->vdev.entity;
+	struct media_pad *sink_pad = &sink->pads[0];
+	unsigned int channel;
+	int ret;
+
+	for (channel = 0; channel < 4; channel++) {
+		unsigned int source_idx = rvin_group_csi_channel_to_pad(channel);
+		struct media_pad *source_pad = &source->pads[source_idx];
+
+		/* Skip if link already exists. */
+		if (media_entity_find_link(source_pad, sink_pad))
+			continue;
+
+		ret = media_create_pad_link(source, source_idx, sink, 0, 0);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int rvin_csi2_setup_links(struct rvin_dev *vin)
+{
+	const struct rvin_group_route *route;
+	unsigned int id;
+	int ret = -EINVAL;
+
+	/* Create all media device links between VINs and CSI-2's. */
+	mutex_lock(&vin->group->lock);
+	for (route = vin->info->routes; route->chsel; route++) {
+		/* Check that VIN' master is part of the group. */
+		if (!vin->group->vin[route->master])
+			continue;
+
+		/* Check that CSI-2 is part of the group. */
+		if (!vin->group->remotes[route->csi].subdev)
+			continue;
+
+		for (id = route->master; id < route->master + 4; id++) {
+			/* Check that VIN is part of the group. */
+			if (!vin->group->vin[id])
+				continue;
+
+			ret = rvin_csi2_create_link(vin->group, id, route);
+			if (ret)
+				goto out;
+		}
+	}
+out:
+	mutex_unlock(&vin->group->lock);
+
+	return ret;
+}
+
+static void rvin_csi2_cleanup(struct rvin_dev *vin)
+{
+	rvin_parallel_cleanup(vin);
+	rvin_group_notifier_cleanup(vin);
+	rvin_group_put(vin);
+	rvin_free_controls(vin);
+}
+
+static int rvin_csi2_init(struct rvin_dev *vin)
+{
+	int ret;
+
+	vin->pad.flags = MEDIA_PAD_FL_SINK;
+	ret = media_entity_pads_init(&vin->vdev.entity, 1, &vin->pad);
+	if (ret)
+		return ret;
+
+	ret = rvin_create_controls(vin, NULL);
+	if (ret < 0)
+		return ret;
+
+	ret = rvin_group_get(vin, rvin_csi2_setup_links, &rvin_csi2_media_ops);
+	if (ret)
+		goto err_controls;
+
+	/* It's OK to not have a parallel subdevice. */
+	ret = rvin_parallel_init(vin);
+	if (ret && ret != -ENODEV)
+		goto err_group;
+
+	ret = rvin_group_notifier_init(vin, 1, RVIN_CSI_MAX);
+	if (ret)
+		goto err_parallel;
+
+	return 0;
+err_parallel:
+	rvin_parallel_cleanup(vin);
+err_group:
+	rvin_group_put(vin);
+err_controls:
+	rvin_free_controls(vin);
+
+	return ret;
+}
+
+/* -----------------------------------------------------------------------------
+ * ISP
+ */
+
+static int rvin_isp_setup_links(struct rvin_dev *vin)
+{
+	unsigned int i;
+	int ret = -EINVAL;
+
+	/* Create all media device links between VINs and ISP's. */
+	mutex_lock(&vin->group->lock);
+	for (i = 0; i < RCAR_VIN_NUM; i++) {
+		struct media_pad *source_pad, *sink_pad;
+		struct media_entity *source, *sink;
+		unsigned int source_slot = i / 8;
+		unsigned int source_idx = i % 8 + 1;
+
+		if (!vin->group->vin[i])
+			continue;
+
+		/* Check that ISP is part of the group. */
+		if (!vin->group->remotes[source_slot].subdev)
+			continue;
+
+		source = &vin->group->remotes[source_slot].subdev->entity;
+		source_pad = &source->pads[source_idx];
+
+		sink = &vin->group->vin[i]->vdev.entity;
+		sink_pad = &sink->pads[0];
+
+		/* Skip if link already exists. */
+		if (media_entity_find_link(source_pad, sink_pad))
+			continue;
+
+		ret = media_create_pad_link(source, source_idx, sink, 0,
+					    MEDIA_LNK_FL_ENABLED |
+					    MEDIA_LNK_FL_IMMUTABLE);
+		if (ret) {
+			vin_err(vin, "Error adding link from %s to %s\n",
+				source->name, sink->name);
+			break;
+		}
+	}
+	mutex_unlock(&vin->group->lock);
+
+	return ret;
+}
+
+static void rvin_isp_cleanup(struct rvin_dev *vin)
+{
+	rvin_group_notifier_cleanup(vin);
+	rvin_group_put(vin);
+	rvin_free_controls(vin);
+}
+
+static int rvin_isp_init(struct rvin_dev *vin)
+{
+	int ret;
+
+	vin->pad.flags = MEDIA_PAD_FL_SINK;
+	ret = media_entity_pads_init(&vin->vdev.entity, 1, &vin->pad);
+	if (ret)
+		return ret;
+
+	ret = rvin_create_controls(vin, NULL);
+	if (ret < 0)
+		return ret;
+
+	ret = rvin_group_get(vin, rvin_isp_setup_links, NULL);
+	if (ret)
+		goto err_controls;
+
+	ret = rvin_group_notifier_init(vin, 2, RVIN_ISP_MAX);
+	if (ret)
+		goto err_group;
+
+	return 0;
+err_group:
+	rvin_group_put(vin);
+err_controls:
+	rvin_free_controls(vin);
+
+	return ret;
+}
+
+/* -----------------------------------------------------------------------------
+ * Suspend / Resume
+ */
+
+static int __maybe_unused rvin_suspend(struct device *dev)
+{
+	struct rvin_dev *vin = dev_get_drvdata(dev);
+
+	if (vin->state != RUNNING)
+		return 0;
+
+	rvin_stop_streaming(vin);
+
+	vin->state = SUSPENDED;
+
+	return 0;
+}
+
+static int __maybe_unused rvin_resume(struct device *dev)
+{
+	struct rvin_dev *vin = dev_get_drvdata(dev);
+
+	if (vin->state != SUSPENDED)
+		return 0;
+
+	/*
+	 * Restore group master CHSEL setting.
+	 *
+	 * This needs to be done by every VIN resuming not only the master
+	 * as we don't know if and in which order the master VINs will
+	 * be resumed.
+	 */
+	if (vin->info->use_mc) {
+		unsigned int master_id = rvin_group_id_to_master(vin->id);
+		struct rvin_dev *master = vin->group->vin[master_id];
+		int ret;
+
+		if (WARN_ON(!master))
+			return -ENODEV;
+
+		ret = rvin_set_channel_routing(master, master->chsel);
+		if (ret)
+			return ret;
+	}
+
+	return rvin_start_streaming(vin);
+}
+
+/* -----------------------------------------------------------------------------
+ * Platform Device Driver
+ */
+
+static const struct rvin_info rcar_info_h1 = {
+	.model = RCAR_H1,
+	.use_mc = false,
+	.max_width = 2048,
+	.max_height = 2048,
+	.scaler = rvin_scaler_gen2,
+};
+
+static const struct rvin_info rcar_info_m1 = {
+	.model = RCAR_M1,
+	.use_mc = false,
+	.max_width = 2048,
+	.max_height = 2048,
+	.scaler = rvin_scaler_gen2,
+};
+
+static const struct rvin_info rcar_info_gen2 = {
+	.model = RCAR_GEN2,
+	.use_mc = false,
+	.max_width = 2048,
+	.max_height = 2048,
+	.scaler = rvin_scaler_gen2,
+};
+
+static const struct rvin_group_route rcar_info_r8a774e1_routes[] = {
+	{ .master = 0, .csi = RVIN_CSI20, .chsel = 0x04 },
+	{ .master = 0, .csi = RVIN_CSI40, .chsel = 0x03 },
+	{ .master = 4, .csi = RVIN_CSI20, .chsel = 0x04 },
+	{ /* Sentinel */ }
+};
+
+static const struct rvin_info rcar_info_r8a774e1 = {
+	.model = RCAR_GEN3,
+	.use_mc = true,
+	.max_width = 4096,
+	.max_height = 4096,
+	.routes = rcar_info_r8a774e1_routes,
+};
+
+static const struct rvin_group_route rcar_info_r8a7795_routes[] = {
+	{ .master = 0, .csi = RVIN_CSI20, .chsel = 0x04 },
+	{ .master = 0, .csi = RVIN_CSI40, .chsel = 0x03 },
+	{ .master = 4, .csi = RVIN_CSI20, .chsel = 0x04 },
+	{ .master = 4, .csi = RVIN_CSI41, .chsel = 0x03 },
+	{ /* Sentinel */ }
+};
+
+static const struct rvin_info rcar_info_r8a7795 = {
+	.model = RCAR_GEN3,
+	.use_mc = true,
+	.nv12 = true,
+	.max_width = 4096,
+	.max_height = 4096,
+	.routes = rcar_info_r8a7795_routes,
+	.scaler = rvin_scaler_gen3,
+};
+
+static const struct rvin_group_route rcar_info_r8a7796_routes[] = {
+	{ .master = 0, .csi = RVIN_CSI20, .chsel = 0x04 },
+	{ .master = 0, .csi = RVIN_CSI40, .chsel = 0x03 },
+	{ .master = 4, .csi = RVIN_CSI20, .chsel = 0x04 },
+	{ .master = 4, .csi = RVIN_CSI40, .chsel = 0x03 },
+	{ /* Sentinel */ }
+};
+
+static const struct rvin_info rcar_info_r8a7796 = {
+	.model = RCAR_GEN3,
+	.use_mc = true,
+	.nv12 = true,
+	.max_width = 4096,
+	.max_height = 4096,
+	.routes = rcar_info_r8a7796_routes,
+	.scaler = rvin_scaler_gen3,
+};
+
+static const struct rvin_group_route rcar_info_r8a77965_routes[] = {
+	{ .master = 0, .csi = RVIN_CSI20, .chsel = 0x04 },
+	{ .master = 0, .csi = RVIN_CSI40, .chsel = 0x03 },
+	{ .master = 4, .csi = RVIN_CSI20, .chsel = 0x04 },
+	{ .master = 4, .csi = RVIN_CSI40, .chsel = 0x03 },
+	{ /* Sentinel */ }
+};
+
+static const struct rvin_info rcar_info_r8a77965 = {
+	.model = RCAR_GEN3,
+	.use_mc = true,
+	.nv12 = true,
+	.max_width = 4096,
+	.max_height = 4096,
+	.routes = rcar_info_r8a77965_routes,
+	.scaler = rvin_scaler_gen3,
+};
+
+static const struct rvin_group_route rcar_info_r8a77970_routes[] = {
+	{ .master = 0, .csi = RVIN_CSI40, .chsel = 0x03 },
+	{ /* Sentinel */ }
+};
+
+static const struct rvin_info rcar_info_r8a77970 = {
+	.model = RCAR_GEN3,
+	.use_mc = true,
+	.max_width = 4096,
+	.max_height = 4096,
+	.routes = rcar_info_r8a77970_routes,
+};
+
+static const struct rvin_group_route rcar_info_r8a77980_routes[] = {
+	{ .master = 0, .csi = RVIN_CSI40, .chsel = 0x03 },
+	{ .master = 4, .csi = RVIN_CSI41, .chsel = 0x03 },
+	{ /* Sentinel */ }
+};
+
+static const struct rvin_info rcar_info_r8a77980 = {
+	.model = RCAR_GEN3,
+	.use_mc = true,
+	.nv12 = true,
+	.max_width = 4096,
+	.max_height = 4096,
+	.routes = rcar_info_r8a77980_routes,
+};
+
+static const struct rvin_group_route rcar_info_r8a77990_routes[] = {
+	{ .master = 4, .csi = RVIN_CSI40, .chsel = 0x03 },
+	{ /* Sentinel */ }
+};
+
+static const struct rvin_info rcar_info_r8a77990 = {
+	.model = RCAR_GEN3,
+	.use_mc = true,
+	.nv12 = true,
+	.max_width = 4096,
+	.max_height = 4096,
+	.routes = rcar_info_r8a77990_routes,
+	.scaler = rvin_scaler_gen3,
+};
+
+static const struct rvin_group_route rcar_info_r8a77995_routes[] = {
+	{ /* Sentinel */ }
+};
+
+static const struct rvin_info rcar_info_r8a77995 = {
+	.model = RCAR_GEN3,
+	.use_mc = true,
+	.nv12 = true,
+	.max_width = 4096,
+	.max_height = 4096,
+	.routes = rcar_info_r8a77995_routes,
+	.scaler = rvin_scaler_gen3,
+};
+
+static const struct rvin_info rcar_info_r8a779a0 = {
+	.model = RCAR_GEN3,
+	.use_mc = true,
+	.use_isp = true,
+	.nv12 = true,
+	.max_width = 4096,
+	.max_height = 4096,
+};
+
+static const struct rvin_info rcar_info_r8a779g0 = {
+	.model = RCAR_GEN3,
+	.use_mc = true,
+	.use_isp = true,
+	.nv12 = true,
+	.max_width = 4096,
+	.max_height = 4096,
+};
+
+static const struct of_device_id rvin_of_id_table[] = {
+	{
+		.compatible = "renesas,vin-r8a774a1",
+		.data = &rcar_info_r8a7796,
+	},
+	{
+		.compatible = "renesas,vin-r8a774b1",
+		.data = &rcar_info_r8a77965,
+	},
+	{
+		.compatible = "renesas,vin-r8a774c0",
+		.data = &rcar_info_r8a77990,
+	},
+	{
+		.compatible = "renesas,vin-r8a774e1",
+		.data = &rcar_info_r8a774e1,
+	},
+	{
+		.compatible = "renesas,vin-r8a7778",
+		.data = &rcar_info_m1,
+	},
+	{
+		.compatible = "renesas,vin-r8a7779",
+		.data = &rcar_info_h1,
+	},
+	{
+		.compatible = "renesas,rcar-gen2-vin",
+		.data = &rcar_info_gen2,
+	},
+	{
+		.compatible = "renesas,vin-r8a7795",
+		.data = &rcar_info_r8a7795,
+	},
+	{
+		.compatible = "renesas,vin-r8a7796",
+		.data = &rcar_info_r8a7796,
+	},
+	{
+		.compatible = "renesas,vin-r8a77961",
+		.data = &rcar_info_r8a7796,
+	},
+	{
+		.compatible = "renesas,vin-r8a77965",
+		.data = &rcar_info_r8a77965,
+	},
+	{
+		.compatible = "renesas,vin-r8a77970",
+		.data = &rcar_info_r8a77970,
+	},
+	{
+		.compatible = "renesas,vin-r8a77980",
+		.data = &rcar_info_r8a77980,
+	},
+	{
+		.compatible = "renesas,vin-r8a77990",
+		.data = &rcar_info_r8a77990,
+	},
+	{
+		.compatible = "renesas,vin-r8a77995",
+		.data = &rcar_info_r8a77995,
+	},
+	{
+		.compatible = "renesas,vin-r8a779a0",
+		.data = &rcar_info_r8a779a0,
+	},
+	{
+		.compatible = "renesas,vin-r8a779g0",
+		.data = &rcar_info_r8a779g0,
+	},
+	{ /* Sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, rvin_of_id_table);
+
+static int rcar_vin_probe(struct platform_device *pdev)
+{
+	struct rvin_dev *vin;
+	int irq, ret;
+
+	vin = devm_kzalloc(&pdev->dev, sizeof(*vin), GFP_KERNEL);
+	if (!vin)
+		return -ENOMEM;
+
+	vin->dev = &pdev->dev;
+	vin->info = of_device_get_match_data(&pdev->dev);
+	vin->alpha = 0xff;
+
+	vin->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(vin->base))
+		return PTR_ERR(vin->base);
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	ret = rvin_dma_register(vin, irq);
+	if (ret)
+		return ret;
+
+	platform_set_drvdata(pdev, vin);
+
+	if (vin->info->use_isp) {
+		ret = rvin_isp_init(vin);
+	} else if (vin->info->use_mc) {
+		ret = rvin_csi2_init(vin);
+
+		if (vin->info->scaler &&
+		    rvin_group_id_to_master(vin->id) == vin->id)
+			vin->scaler = vin->info->scaler;
+	} else {
+		ret = rvin_parallel_init(vin);
+
+		if (vin->info->scaler)
+			vin->scaler = vin->info->scaler;
+	}
+
+	if (ret) {
+		rvin_dma_unregister(vin);
+		return ret;
+	}
+
+	pm_suspend_ignore_children(&pdev->dev, true);
+	pm_runtime_enable(&pdev->dev);
+
+	return 0;
+}
+
+static void rcar_vin_remove(struct platform_device *pdev)
+{
+	struct rvin_dev *vin = platform_get_drvdata(pdev);
+
+	pm_runtime_disable(&pdev->dev);
+
+	rvin_v4l2_unregister(vin);
+
+	if (vin->info->use_isp)
+		rvin_isp_cleanup(vin);
+	else if (vin->info->use_mc)
+		rvin_csi2_cleanup(vin);
+	else
+		rvin_parallel_cleanup(vin);
+
+	rvin_dma_unregister(vin);
+}
+
+static SIMPLE_DEV_PM_OPS(rvin_pm_ops, rvin_suspend, rvin_resume);
+
+static struct platform_driver rcar_vin_driver = {
+	.driver = {
+		.name = "rcar-vin",
+		.suppress_bind_attrs = true,
+		.pm = &rvin_pm_ops,
+		.of_match_table = rvin_of_id_table,
+	},
+	.probe = rcar_vin_probe,
+	.remove_new = rcar_vin_remove,
+};
+
+module_platform_driver(rcar_vin_driver);
+
+MODULE_AUTHOR("Niklas Söderlund <niklas.soderlund@ragnatech.se>");
+MODULE_DESCRIPTION("Renesas R-Car VIN camera host driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/platform/renesas/rcar-vin/rcar-csi2.c b/drivers/media/platform/renesas/rcar-vin/rcar-csi2.c
new file mode 100644
index 000000000..f6326df0b
--- /dev/null
+++ b/drivers/media/platform/renesas/rcar-vin/rcar-csi2.c
@@ -0,0 +1,1959 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Driver for Renesas R-Car MIPI CSI-2 Receiver
+ *
+ * Copyright (C) 2018 Renesas Electronics Corp.
+ */
+
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_graph.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/reset.h>
+#include <linux/sys_soc.h>
+
+#include <media/mipi-csi2.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-fwnode.h>
+#include <media/v4l2-mc.h>
+#include <media/v4l2-subdev.h>
+
+struct rcar_csi2;
+
+/* Register offsets and bits */
+
+/* Control Timing Select */
+#define TREF_REG			0x00
+#define TREF_TREF			BIT(0)
+
+/* Software Reset */
+#define SRST_REG			0x04
+#define SRST_SRST			BIT(0)
+
+/* PHY Operation Control */
+#define PHYCNT_REG			0x08
+#define PHYCNT_SHUTDOWNZ		BIT(17)
+#define PHYCNT_RSTZ			BIT(16)
+#define PHYCNT_ENABLECLK		BIT(4)
+#define PHYCNT_ENABLE_3			BIT(3)
+#define PHYCNT_ENABLE_2			BIT(2)
+#define PHYCNT_ENABLE_1			BIT(1)
+#define PHYCNT_ENABLE_0			BIT(0)
+
+/* Checksum Control */
+#define CHKSUM_REG			0x0c
+#define CHKSUM_ECC_EN			BIT(1)
+#define CHKSUM_CRC_EN			BIT(0)
+
+/*
+ * Channel Data Type Select
+ * VCDT[0-15]:  Channel 0 VCDT[16-31]:  Channel 1
+ * VCDT2[0-15]: Channel 2 VCDT2[16-31]: Channel 3
+ */
+#define VCDT_REG			0x10
+#define VCDT2_REG			0x14
+#define VCDT_VCDTN_EN			BIT(15)
+#define VCDT_SEL_VC(n)			(((n) & 0x3) << 8)
+#define VCDT_SEL_DTN_ON			BIT(6)
+#define VCDT_SEL_DT(n)			(((n) & 0x3f) << 0)
+
+/* Frame Data Type Select */
+#define FRDT_REG			0x18
+
+/* Field Detection Control */
+#define FLD_REG				0x1c
+#define FLD_FLD_NUM(n)			(((n) & 0xff) << 16)
+#define FLD_DET_SEL(n)			(((n) & 0x3) << 4)
+#define FLD_FLD_EN4			BIT(3)
+#define FLD_FLD_EN3			BIT(2)
+#define FLD_FLD_EN2			BIT(1)
+#define FLD_FLD_EN			BIT(0)
+
+/* Automatic Standby Control */
+#define ASTBY_REG			0x20
+
+/* Long Data Type Setting 0 */
+#define LNGDT0_REG			0x28
+
+/* Long Data Type Setting 1 */
+#define LNGDT1_REG			0x2c
+
+/* Interrupt Enable */
+#define INTEN_REG			0x30
+#define INTEN_INT_AFIFO_OF		BIT(27)
+#define INTEN_INT_ERRSOTHS		BIT(4)
+#define INTEN_INT_ERRSOTSYNCHS		BIT(3)
+
+/* Interrupt Source Mask */
+#define INTCLOSE_REG			0x34
+
+/* Interrupt Status Monitor */
+#define INTSTATE_REG			0x38
+#define INTSTATE_INT_ULPS_START		BIT(7)
+#define INTSTATE_INT_ULPS_END		BIT(6)
+
+/* Interrupt Error Status Monitor */
+#define INTERRSTATE_REG			0x3c
+
+/* Short Packet Data */
+#define SHPDAT_REG			0x40
+
+/* Short Packet Count */
+#define SHPCNT_REG			0x44
+
+/* LINK Operation Control */
+#define LINKCNT_REG			0x48
+#define LINKCNT_MONITOR_EN		BIT(31)
+#define LINKCNT_REG_MONI_PACT_EN	BIT(25)
+#define LINKCNT_ICLK_NONSTOP		BIT(24)
+
+/* Lane Swap */
+#define LSWAP_REG			0x4c
+#define LSWAP_L3SEL(n)			(((n) & 0x3) << 6)
+#define LSWAP_L2SEL(n)			(((n) & 0x3) << 4)
+#define LSWAP_L1SEL(n)			(((n) & 0x3) << 2)
+#define LSWAP_L0SEL(n)			(((n) & 0x3) << 0)
+
+/* PHY Test Interface Write Register */
+#define PHTW_REG			0x50
+#define PHTW_DWEN			BIT(24)
+#define PHTW_TESTDIN_DATA(n)		(((n & 0xff)) << 16)
+#define PHTW_CWEN			BIT(8)
+#define PHTW_TESTDIN_CODE(n)		((n & 0xff))
+
+#define PHYFRX_REG			0x64
+#define PHYFRX_FORCERX_MODE_3		BIT(3)
+#define PHYFRX_FORCERX_MODE_2		BIT(2)
+#define PHYFRX_FORCERX_MODE_1		BIT(1)
+#define PHYFRX_FORCERX_MODE_0		BIT(0)
+
+/* V4H BASE registers */
+#define V4H_N_LANES_REG					0x0004
+#define V4H_CSI2_RESETN_REG				0x0008
+#define V4H_PHY_MODE_REG				0x001c
+#define V4H_PHY_SHUTDOWNZ_REG				0x0040
+#define V4H_DPHY_RSTZ_REG				0x0044
+#define V4H_FLDC_REG					0x0804
+#define V4H_FLDD_REG					0x0808
+#define V4H_IDIC_REG					0x0810
+#define V4H_PHY_EN_REG					0x2000
+
+#define V4H_ST_PHYST_REG				0x2814
+#define V4H_ST_PHYST_ST_PHY_READY			BIT(31)
+#define V4H_ST_PHYST_ST_STOPSTATE_3			BIT(3)
+#define V4H_ST_PHYST_ST_STOPSTATE_2			BIT(2)
+#define V4H_ST_PHYST_ST_STOPSTATE_1			BIT(1)
+#define V4H_ST_PHYST_ST_STOPSTATE_0			BIT(0)
+
+/* V4H PPI registers */
+#define V4H_PPI_STARTUP_RW_COMMON_DPHY_REG(n)		(0x21800 + ((n) * 2)) /* n = 0 - 9 */
+#define V4H_PPI_STARTUP_RW_COMMON_STARTUP_1_1_REG	0x21822
+#define V4H_PPI_CALIBCTRL_RW_COMMON_BG_0_REG		0x2184c
+#define V4H_PPI_RW_LPDCOCAL_TIMEBASE_REG		0x21c02
+#define V4H_PPI_RW_LPDCOCAL_NREF_REG			0x21c04
+#define V4H_PPI_RW_LPDCOCAL_NREF_RANGE_REG		0x21c06
+#define V4H_PPI_RW_LPDCOCAL_TWAIT_CONFIG_REG		0x21c0a
+#define V4H_PPI_RW_LPDCOCAL_VT_CONFIG_REG		0x21c0c
+#define V4H_PPI_RW_LPDCOCAL_COARSE_CFG_REG		0x21c10
+#define V4H_PPI_RW_COMMON_CFG_REG			0x21c6c
+#define V4H_PPI_RW_TERMCAL_CFG_0_REG			0x21c80
+#define V4H_PPI_RW_OFFSETCAL_CFG_0_REG			0x21ca0
+
+/* V4H CORE registers */
+#define V4H_CORE_DIG_IOCTRL_RW_AFE_LANE0_CTRL_2_REG(n)	(0x22040 + ((n) * 2)) /* n = 0 - 15 */
+#define V4H_CORE_DIG_IOCTRL_RW_AFE_LANE1_CTRL_2_REG(n)	(0x22440 + ((n) * 2)) /* n = 0 - 15 */
+#define V4H_CORE_DIG_IOCTRL_RW_AFE_LANE2_CTRL_2_REG(n)	(0x22840 + ((n) * 2)) /* n = 0 - 15 */
+#define V4H_CORE_DIG_IOCTRL_RW_AFE_LANE3_CTRL_2_REG(n)	(0x22c40 + ((n) * 2)) /* n = 0 - 15 */
+#define V4H_CORE_DIG_IOCTRL_RW_AFE_LANE4_CTRL_2_REG(n)	(0x23040 + ((n) * 2)) /* n = 0 - 15 */
+#define V4H_CORE_DIG_IOCTRL_RW_AFE_CB_CTRL_2_REG(n)	(0x23840 + ((n) * 2)) /* n = 0 - 11 */
+#define V4H_CORE_DIG_RW_COMMON_REG(n)			(0x23880 + ((n) * 2)) /* n = 0 - 15 */
+#define V4H_CORE_DIG_ANACTRL_RW_COMMON_ANACTRL_REG(n)	(0x239e0 + ((n) * 2)) /* n = 0 - 3 */
+#define V4H_CORE_DIG_CLANE_1_RW_CFG_0_REG		0x2a400
+#define V4H_CORE_DIG_CLANE_1_RW_HS_TX_6_REG		0x2a60c
+
+/* V4H C-PHY */
+#define V4H_CORE_DIG_RW_TRIO0_REG(n)			(0x22100 + ((n) * 2)) /* n = 0 - 3 */
+#define V4H_CORE_DIG_RW_TRIO1_REG(n)			(0x22500 + ((n) * 2)) /* n = 0 - 3 */
+#define V4H_CORE_DIG_RW_TRIO2_REG(n)			(0x22900 + ((n) * 2)) /* n = 0 - 3 */
+#define V4H_CORE_DIG_CLANE_0_RW_LP_0_REG		0x2a080
+#define V4H_CORE_DIG_CLANE_0_RW_HS_RX_REG(n)		(0x2a100 + ((n) * 2)) /* n = 0 - 6 */
+#define V4H_CORE_DIG_CLANE_1_RW_LP_0_REG		0x2a480
+#define V4H_CORE_DIG_CLANE_1_RW_HS_RX_REG(n)		(0x2a500 + ((n) * 2)) /* n = 0 - 6 */
+#define V4H_CORE_DIG_CLANE_2_RW_LP_0_REG		0x2a880
+#define V4H_CORE_DIG_CLANE_2_RW_HS_RX_REG(n)		(0x2a900 + ((n) * 2)) /* n = 0 - 6 */
+
+struct rcsi2_cphy_setting {
+	u16 msps;
+	u16 rx2;
+	u16 trio0;
+	u16 trio1;
+	u16 trio2;
+	u16 lane27;
+	u16 lane29;
+};
+
+static const struct rcsi2_cphy_setting cphy_setting_table_r8a779g0[] = {
+	{ .msps =   80, .rx2 = 0x38, .trio0 = 0x024a, .trio1 = 0x0134, .trio2 = 0x6a, .lane27 = 0x0000, .lane29 = 0x0a24 },
+	{ .msps =  100, .rx2 = 0x38, .trio0 = 0x024a, .trio1 = 0x00f5, .trio2 = 0x55, .lane27 = 0x0000, .lane29 = 0x0a24 },
+	{ .msps =  200, .rx2 = 0x38, .trio0 = 0x024a, .trio1 = 0x0077, .trio2 = 0x2b, .lane27 = 0x0000, .lane29 = 0x0a44 },
+	{ .msps =  300, .rx2 = 0x38, .trio0 = 0x024a, .trio1 = 0x004d, .trio2 = 0x1d, .lane27 = 0x0000, .lane29 = 0x0a44 },
+	{ .msps =  400, .rx2 = 0x38, .trio0 = 0x024a, .trio1 = 0x0038, .trio2 = 0x16, .lane27 = 0x0000, .lane29 = 0x0a64 },
+	{ .msps =  500, .rx2 = 0x38, .trio0 = 0x024a, .trio1 = 0x002b, .trio2 = 0x12, .lane27 = 0x0000, .lane29 = 0x0a64 },
+	{ .msps =  600, .rx2 = 0x38, .trio0 = 0x024a, .trio1 = 0x0023, .trio2 = 0x0f, .lane27 = 0x0000, .lane29 = 0x0a64 },
+	{ .msps =  700, .rx2 = 0x38, .trio0 = 0x024a, .trio1 = 0x001d, .trio2 = 0x0d, .lane27 = 0x0000, .lane29 = 0x0a84 },
+	{ .msps =  800, .rx2 = 0x38, .trio0 = 0x024a, .trio1 = 0x0018, .trio2 = 0x0c, .lane27 = 0x0000, .lane29 = 0x0a84 },
+	{ .msps =  900, .rx2 = 0x38, .trio0 = 0x024a, .trio1 = 0x0015, .trio2 = 0x0b, .lane27 = 0x0000, .lane29 = 0x0a84 },
+	{ .msps = 1000, .rx2 = 0x3e, .trio0 = 0x024a, .trio1 = 0x0012, .trio2 = 0x0a, .lane27 = 0x0400, .lane29 = 0x0a84 },
+	{ .msps = 1100, .rx2 = 0x44, .trio0 = 0x024a, .trio1 = 0x000f, .trio2 = 0x09, .lane27 = 0x0800, .lane29 = 0x0a84 },
+	{ .msps = 1200, .rx2 = 0x4a, .trio0 = 0x024a, .trio1 = 0x000e, .trio2 = 0x08, .lane27 = 0x0c00, .lane29 = 0x0a84 },
+	{ .msps = 1300, .rx2 = 0x51, .trio0 = 0x024a, .trio1 = 0x000c, .trio2 = 0x08, .lane27 = 0x0c00, .lane29 = 0x0aa4 },
+	{ .msps = 1400, .rx2 = 0x57, .trio0 = 0x024a, .trio1 = 0x000b, .trio2 = 0x07, .lane27 = 0x1000, .lane29 = 0x0aa4 },
+	{ .msps = 1500, .rx2 = 0x5d, .trio0 = 0x044a, .trio1 = 0x0009, .trio2 = 0x07, .lane27 = 0x1000, .lane29 = 0x0aa4 },
+	{ .msps = 1600, .rx2 = 0x63, .trio0 = 0x044a, .trio1 = 0x0008, .trio2 = 0x07, .lane27 = 0x1400, .lane29 = 0x0aa4 },
+	{ .msps = 1700, .rx2 = 0x6a, .trio0 = 0x044a, .trio1 = 0x0007, .trio2 = 0x06, .lane27 = 0x1400, .lane29 = 0x0aa4 },
+	{ .msps = 1800, .rx2 = 0x70, .trio0 = 0x044a, .trio1 = 0x0007, .trio2 = 0x06, .lane27 = 0x1400, .lane29 = 0x0aa4 },
+	{ .msps = 1900, .rx2 = 0x76, .trio0 = 0x044a, .trio1 = 0x0006, .trio2 = 0x06, .lane27 = 0x1400, .lane29 = 0x0aa4 },
+	{ .msps = 2000, .rx2 = 0x7c, .trio0 = 0x044a, .trio1 = 0x0005, .trio2 = 0x06, .lane27 = 0x1800, .lane29 = 0x0aa4 },
+	{ .msps = 2100, .rx2 = 0x83, .trio0 = 0x044a, .trio1 = 0x0005, .trio2 = 0x05, .lane27 = 0x1800, .lane29 = 0x0aa4 },
+	{ .msps = 2200, .rx2 = 0x89, .trio0 = 0x064a, .trio1 = 0x0004, .trio2 = 0x05, .lane27 = 0x1800, .lane29 = 0x0aa4 },
+	{ .msps = 2300, .rx2 = 0x8f, .trio0 = 0x064a, .trio1 = 0x0003, .trio2 = 0x05, .lane27 = 0x1800, .lane29 = 0x0aa4 },
+	{ .msps = 2400, .rx2 = 0x95, .trio0 = 0x064a, .trio1 = 0x0003, .trio2 = 0x05, .lane27 = 0x1800, .lane29 = 0x0aa4 },
+	{ .msps = 2500, .rx2 = 0x9c, .trio0 = 0x064a, .trio1 = 0x0003, .trio2 = 0x05, .lane27 = 0x1c00, .lane29 = 0x0aa4 },
+	{ .msps = 2600, .rx2 = 0xa2, .trio0 = 0x064a, .trio1 = 0x0002, .trio2 = 0x05, .lane27 = 0x1c00, .lane29 = 0x0ad4 },
+	{ .msps = 2700, .rx2 = 0xa8, .trio0 = 0x064a, .trio1 = 0x0002, .trio2 = 0x05, .lane27 = 0x1c00, .lane29 = 0x0ad4 },
+	{ .msps = 2800, .rx2 = 0xae, .trio0 = 0x064a, .trio1 = 0x0002, .trio2 = 0x04, .lane27 = 0x1c00, .lane29 = 0x0ad4 },
+	{ .msps = 2900, .rx2 = 0xb5, .trio0 = 0x084a, .trio1 = 0x0001, .trio2 = 0x04, .lane27 = 0x1c00, .lane29 = 0x0ad4 },
+	{ .msps = 3000, .rx2 = 0xbb, .trio0 = 0x084a, .trio1 = 0x0001, .trio2 = 0x04, .lane27 = 0x1c00, .lane29 = 0x0ad4 },
+	{ .msps = 3100, .rx2 = 0xc1, .trio0 = 0x084a, .trio1 = 0x0001, .trio2 = 0x04, .lane27 = 0x1c00, .lane29 = 0x0ad4 },
+	{ .msps = 3200, .rx2 = 0xc7, .trio0 = 0x084a, .trio1 = 0x0001, .trio2 = 0x04, .lane27 = 0x1c00, .lane29 = 0x0ad4 },
+	{ .msps = 3300, .rx2 = 0xce, .trio0 = 0x084a, .trio1 = 0x0001, .trio2 = 0x04, .lane27 = 0x1c00, .lane29 = 0x0ad4 },
+	{ .msps = 3400, .rx2 = 0xd4, .trio0 = 0x084a, .trio1 = 0x0001, .trio2 = 0x04, .lane27 = 0x1c00, .lane29 = 0x0ad4 },
+	{ .msps = 3500, .rx2 = 0xda, .trio0 = 0x084a, .trio1 = 0x0001, .trio2 = 0x04, .lane27 = 0x1c00, .lane29 = 0x0ad4 },
+	{ /* sentinel */ },
+};
+
+struct phtw_value {
+	u16 data;
+	u16 code;
+};
+
+struct rcsi2_mbps_reg {
+	u16 mbps;
+	u16 reg;
+};
+
+static const struct rcsi2_mbps_reg phtw_mbps_v3u[] = {
+	{ .mbps = 1500, .reg = 0xcc },
+	{ .mbps = 1550, .reg = 0x1d },
+	{ .mbps = 1600, .reg = 0x27 },
+	{ .mbps = 1650, .reg = 0x30 },
+	{ .mbps = 1700, .reg = 0x39 },
+	{ .mbps = 1750, .reg = 0x42 },
+	{ .mbps = 1800, .reg = 0x4b },
+	{ .mbps = 1850, .reg = 0x55 },
+	{ .mbps = 1900, .reg = 0x5e },
+	{ .mbps = 1950, .reg = 0x67 },
+	{ .mbps = 2000, .reg = 0x71 },
+	{ .mbps = 2050, .reg = 0x79 },
+	{ .mbps = 2100, .reg = 0x83 },
+	{ .mbps = 2150, .reg = 0x8c },
+	{ .mbps = 2200, .reg = 0x95 },
+	{ .mbps = 2250, .reg = 0x9e },
+	{ .mbps = 2300, .reg = 0xa7 },
+	{ .mbps = 2350, .reg = 0xb0 },
+	{ .mbps = 2400, .reg = 0xba },
+	{ .mbps = 2450, .reg = 0xc3 },
+	{ .mbps = 2500, .reg = 0xcc },
+	{ /* sentinel */ },
+};
+
+static const struct rcsi2_mbps_reg phtw_mbps_h3_v3h_m3n[] = {
+	{ .mbps =   80, .reg = 0x86 },
+	{ .mbps =   90, .reg = 0x86 },
+	{ .mbps =  100, .reg = 0x87 },
+	{ .mbps =  110, .reg = 0x87 },
+	{ .mbps =  120, .reg = 0x88 },
+	{ .mbps =  130, .reg = 0x88 },
+	{ .mbps =  140, .reg = 0x89 },
+	{ .mbps =  150, .reg = 0x89 },
+	{ .mbps =  160, .reg = 0x8a },
+	{ .mbps =  170, .reg = 0x8a },
+	{ .mbps =  180, .reg = 0x8b },
+	{ .mbps =  190, .reg = 0x8b },
+	{ .mbps =  205, .reg = 0x8c },
+	{ .mbps =  220, .reg = 0x8d },
+	{ .mbps =  235, .reg = 0x8e },
+	{ .mbps =  250, .reg = 0x8e },
+	{ /* sentinel */ },
+};
+
+static const struct rcsi2_mbps_reg phtw_mbps_v3m_e3[] = {
+	{ .mbps =   80, .reg = 0x00 },
+	{ .mbps =   90, .reg = 0x20 },
+	{ .mbps =  100, .reg = 0x40 },
+	{ .mbps =  110, .reg = 0x02 },
+	{ .mbps =  130, .reg = 0x22 },
+	{ .mbps =  140, .reg = 0x42 },
+	{ .mbps =  150, .reg = 0x04 },
+	{ .mbps =  170, .reg = 0x24 },
+	{ .mbps =  180, .reg = 0x44 },
+	{ .mbps =  200, .reg = 0x06 },
+	{ .mbps =  220, .reg = 0x26 },
+	{ .mbps =  240, .reg = 0x46 },
+	{ .mbps =  250, .reg = 0x08 },
+	{ .mbps =  270, .reg = 0x28 },
+	{ .mbps =  300, .reg = 0x0a },
+	{ .mbps =  330, .reg = 0x2a },
+	{ .mbps =  360, .reg = 0x4a },
+	{ .mbps =  400, .reg = 0x0c },
+	{ .mbps =  450, .reg = 0x2c },
+	{ .mbps =  500, .reg = 0x0e },
+	{ .mbps =  550, .reg = 0x2e },
+	{ .mbps =  600, .reg = 0x10 },
+	{ .mbps =  650, .reg = 0x30 },
+	{ .mbps =  700, .reg = 0x12 },
+	{ .mbps =  750, .reg = 0x32 },
+	{ .mbps =  800, .reg = 0x52 },
+	{ .mbps =  850, .reg = 0x72 },
+	{ .mbps =  900, .reg = 0x14 },
+	{ .mbps =  950, .reg = 0x34 },
+	{ .mbps = 1000, .reg = 0x54 },
+	{ .mbps = 1050, .reg = 0x74 },
+	{ .mbps = 1125, .reg = 0x16 },
+	{ /* sentinel */ },
+};
+
+/* PHY Test Interface Clear */
+#define PHTC_REG			0x58
+#define PHTC_TESTCLR			BIT(0)
+
+/* PHY Frequency Control */
+#define PHYPLL_REG			0x68
+#define PHYPLL_HSFREQRANGE(n)		((n) << 16)
+
+static const struct rcsi2_mbps_reg hsfreqrange_v3u[] = {
+	{ .mbps =   80, .reg = 0x00 },
+	{ .mbps =   90, .reg = 0x10 },
+	{ .mbps =  100, .reg = 0x20 },
+	{ .mbps =  110, .reg = 0x30 },
+	{ .mbps =  120, .reg = 0x01 },
+	{ .mbps =  130, .reg = 0x11 },
+	{ .mbps =  140, .reg = 0x21 },
+	{ .mbps =  150, .reg = 0x31 },
+	{ .mbps =  160, .reg = 0x02 },
+	{ .mbps =  170, .reg = 0x12 },
+	{ .mbps =  180, .reg = 0x22 },
+	{ .mbps =  190, .reg = 0x32 },
+	{ .mbps =  205, .reg = 0x03 },
+	{ .mbps =  220, .reg = 0x13 },
+	{ .mbps =  235, .reg = 0x23 },
+	{ .mbps =  250, .reg = 0x33 },
+	{ .mbps =  275, .reg = 0x04 },
+	{ .mbps =  300, .reg = 0x14 },
+	{ .mbps =  325, .reg = 0x25 },
+	{ .mbps =  350, .reg = 0x35 },
+	{ .mbps =  400, .reg = 0x05 },
+	{ .mbps =  450, .reg = 0x16 },
+	{ .mbps =  500, .reg = 0x26 },
+	{ .mbps =  550, .reg = 0x37 },
+	{ .mbps =  600, .reg = 0x07 },
+	{ .mbps =  650, .reg = 0x18 },
+	{ .mbps =  700, .reg = 0x28 },
+	{ .mbps =  750, .reg = 0x39 },
+	{ .mbps =  800, .reg = 0x09 },
+	{ .mbps =  850, .reg = 0x19 },
+	{ .mbps =  900, .reg = 0x29 },
+	{ .mbps =  950, .reg = 0x3a },
+	{ .mbps = 1000, .reg = 0x0a },
+	{ .mbps = 1050, .reg = 0x1a },
+	{ .mbps = 1100, .reg = 0x2a },
+	{ .mbps = 1150, .reg = 0x3b },
+	{ .mbps = 1200, .reg = 0x0b },
+	{ .mbps = 1250, .reg = 0x1b },
+	{ .mbps = 1300, .reg = 0x2b },
+	{ .mbps = 1350, .reg = 0x3c },
+	{ .mbps = 1400, .reg = 0x0c },
+	{ .mbps = 1450, .reg = 0x1c },
+	{ .mbps = 1500, .reg = 0x2c },
+	{ .mbps = 1550, .reg = 0x3d },
+	{ .mbps = 1600, .reg = 0x0d },
+	{ .mbps = 1650, .reg = 0x1d },
+	{ .mbps = 1700, .reg = 0x2e },
+	{ .mbps = 1750, .reg = 0x3e },
+	{ .mbps = 1800, .reg = 0x0e },
+	{ .mbps = 1850, .reg = 0x1e },
+	{ .mbps = 1900, .reg = 0x2f },
+	{ .mbps = 1950, .reg = 0x3f },
+	{ .mbps = 2000, .reg = 0x0f },
+	{ .mbps = 2050, .reg = 0x40 },
+	{ .mbps = 2100, .reg = 0x41 },
+	{ .mbps = 2150, .reg = 0x42 },
+	{ .mbps = 2200, .reg = 0x43 },
+	{ .mbps = 2300, .reg = 0x45 },
+	{ .mbps = 2350, .reg = 0x46 },
+	{ .mbps = 2400, .reg = 0x47 },
+	{ .mbps = 2450, .reg = 0x48 },
+	{ .mbps = 2500, .reg = 0x49 },
+	{ /* sentinel */ },
+};
+
+static const struct rcsi2_mbps_reg hsfreqrange_h3_v3h_m3n[] = {
+	{ .mbps =   80, .reg = 0x00 },
+	{ .mbps =   90, .reg = 0x10 },
+	{ .mbps =  100, .reg = 0x20 },
+	{ .mbps =  110, .reg = 0x30 },
+	{ .mbps =  120, .reg = 0x01 },
+	{ .mbps =  130, .reg = 0x11 },
+	{ .mbps =  140, .reg = 0x21 },
+	{ .mbps =  150, .reg = 0x31 },
+	{ .mbps =  160, .reg = 0x02 },
+	{ .mbps =  170, .reg = 0x12 },
+	{ .mbps =  180, .reg = 0x22 },
+	{ .mbps =  190, .reg = 0x32 },
+	{ .mbps =  205, .reg = 0x03 },
+	{ .mbps =  220, .reg = 0x13 },
+	{ .mbps =  235, .reg = 0x23 },
+	{ .mbps =  250, .reg = 0x33 },
+	{ .mbps =  275, .reg = 0x04 },
+	{ .mbps =  300, .reg = 0x14 },
+	{ .mbps =  325, .reg = 0x25 },
+	{ .mbps =  350, .reg = 0x35 },
+	{ .mbps =  400, .reg = 0x05 },
+	{ .mbps =  450, .reg = 0x16 },
+	{ .mbps =  500, .reg = 0x26 },
+	{ .mbps =  550, .reg = 0x37 },
+	{ .mbps =  600, .reg = 0x07 },
+	{ .mbps =  650, .reg = 0x18 },
+	{ .mbps =  700, .reg = 0x28 },
+	{ .mbps =  750, .reg = 0x39 },
+	{ .mbps =  800, .reg = 0x09 },
+	{ .mbps =  850, .reg = 0x19 },
+	{ .mbps =  900, .reg = 0x29 },
+	{ .mbps =  950, .reg = 0x3a },
+	{ .mbps = 1000, .reg = 0x0a },
+	{ .mbps = 1050, .reg = 0x1a },
+	{ .mbps = 1100, .reg = 0x2a },
+	{ .mbps = 1150, .reg = 0x3b },
+	{ .mbps = 1200, .reg = 0x0b },
+	{ .mbps = 1250, .reg = 0x1b },
+	{ .mbps = 1300, .reg = 0x2b },
+	{ .mbps = 1350, .reg = 0x3c },
+	{ .mbps = 1400, .reg = 0x0c },
+	{ .mbps = 1450, .reg = 0x1c },
+	{ .mbps = 1500, .reg = 0x2c },
+	{ /* sentinel */ },
+};
+
+static const struct rcsi2_mbps_reg hsfreqrange_m3w[] = {
+	{ .mbps =   80,	.reg = 0x00 },
+	{ .mbps =   90,	.reg = 0x10 },
+	{ .mbps =  100,	.reg = 0x20 },
+	{ .mbps =  110,	.reg = 0x30 },
+	{ .mbps =  120,	.reg = 0x01 },
+	{ .mbps =  130,	.reg = 0x11 },
+	{ .mbps =  140,	.reg = 0x21 },
+	{ .mbps =  150,	.reg = 0x31 },
+	{ .mbps =  160,	.reg = 0x02 },
+	{ .mbps =  170,	.reg = 0x12 },
+	{ .mbps =  180,	.reg = 0x22 },
+	{ .mbps =  190,	.reg = 0x32 },
+	{ .mbps =  205,	.reg = 0x03 },
+	{ .mbps =  220,	.reg = 0x13 },
+	{ .mbps =  235,	.reg = 0x23 },
+	{ .mbps =  250,	.reg = 0x33 },
+	{ .mbps =  275,	.reg = 0x04 },
+	{ .mbps =  300,	.reg = 0x14 },
+	{ .mbps =  325,	.reg = 0x05 },
+	{ .mbps =  350,	.reg = 0x15 },
+	{ .mbps =  400,	.reg = 0x25 },
+	{ .mbps =  450,	.reg = 0x06 },
+	{ .mbps =  500,	.reg = 0x16 },
+	{ .mbps =  550,	.reg = 0x07 },
+	{ .mbps =  600,	.reg = 0x17 },
+	{ .mbps =  650,	.reg = 0x08 },
+	{ .mbps =  700,	.reg = 0x18 },
+	{ .mbps =  750,	.reg = 0x09 },
+	{ .mbps =  800,	.reg = 0x19 },
+	{ .mbps =  850,	.reg = 0x29 },
+	{ .mbps =  900,	.reg = 0x39 },
+	{ .mbps =  950,	.reg = 0x0a },
+	{ .mbps = 1000,	.reg = 0x1a },
+	{ .mbps = 1050,	.reg = 0x2a },
+	{ .mbps = 1100,	.reg = 0x3a },
+	{ .mbps = 1150,	.reg = 0x0b },
+	{ .mbps = 1200,	.reg = 0x1b },
+	{ .mbps = 1250,	.reg = 0x2b },
+	{ .mbps = 1300,	.reg = 0x3b },
+	{ .mbps = 1350,	.reg = 0x0c },
+	{ .mbps = 1400,	.reg = 0x1c },
+	{ .mbps = 1450,	.reg = 0x2c },
+	{ .mbps = 1500,	.reg = 0x3c },
+	{ /* sentinel */ },
+};
+
+/* PHY ESC Error Monitor */
+#define PHEERM_REG			0x74
+
+/* PHY Clock Lane Monitor */
+#define PHCLM_REG			0x78
+#define PHCLM_STOPSTATECKL		BIT(0)
+
+/* PHY Data Lane Monitor */
+#define PHDLM_REG			0x7c
+
+/* CSI0CLK Frequency Configuration Preset Register */
+#define CSI0CLKFCPR_REG			0x260
+#define CSI0CLKFREQRANGE(n)		((n & 0x3f) << 16)
+
+struct rcar_csi2_format {
+	u32 code;
+	unsigned int datatype;
+	unsigned int bpp;
+};
+
+static const struct rcar_csi2_format rcar_csi2_formats[] = {
+	{
+		.code = MEDIA_BUS_FMT_RGB888_1X24,
+		.datatype = MIPI_CSI2_DT_RGB888,
+		.bpp = 24,
+	}, {
+		.code = MEDIA_BUS_FMT_UYVY8_1X16,
+		.datatype = MIPI_CSI2_DT_YUV422_8B,
+		.bpp = 16,
+	}, {
+		.code = MEDIA_BUS_FMT_YUYV8_1X16,
+		.datatype = MIPI_CSI2_DT_YUV422_8B,
+		.bpp = 16,
+	}, {
+		.code = MEDIA_BUS_FMT_UYVY8_2X8,
+		.datatype = MIPI_CSI2_DT_YUV422_8B,
+		.bpp = 16,
+	}, {
+		.code = MEDIA_BUS_FMT_YUYV10_2X10,
+		.datatype = MIPI_CSI2_DT_YUV422_8B,
+		.bpp = 20,
+	}, {
+		.code = MEDIA_BUS_FMT_Y10_1X10,
+		.datatype = MIPI_CSI2_DT_RAW10,
+		.bpp = 10,
+	}, {
+		.code = MEDIA_BUS_FMT_SBGGR8_1X8,
+		.datatype = MIPI_CSI2_DT_RAW8,
+		.bpp = 8,
+	}, {
+		.code = MEDIA_BUS_FMT_SGBRG8_1X8,
+		.datatype = MIPI_CSI2_DT_RAW8,
+		.bpp = 8,
+	}, {
+		.code = MEDIA_BUS_FMT_SGRBG8_1X8,
+		.datatype = MIPI_CSI2_DT_RAW8,
+		.bpp = 8,
+	}, {
+		.code = MEDIA_BUS_FMT_SRGGB8_1X8,
+		.datatype = MIPI_CSI2_DT_RAW8,
+		.bpp = 8,
+	}, {
+		.code = MEDIA_BUS_FMT_Y8_1X8,
+		.datatype = MIPI_CSI2_DT_RAW8,
+		.bpp = 8,
+	},
+};
+
+static const struct rcar_csi2_format *rcsi2_code_to_fmt(unsigned int code)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(rcar_csi2_formats); i++)
+		if (rcar_csi2_formats[i].code == code)
+			return &rcar_csi2_formats[i];
+
+	return NULL;
+}
+
+enum rcar_csi2_pads {
+	RCAR_CSI2_SINK,
+	RCAR_CSI2_SOURCE_VC0,
+	RCAR_CSI2_SOURCE_VC1,
+	RCAR_CSI2_SOURCE_VC2,
+	RCAR_CSI2_SOURCE_VC3,
+	NR_OF_RCAR_CSI2_PAD,
+};
+
+struct rcar_csi2_info {
+	int (*init_phtw)(struct rcar_csi2 *priv, unsigned int mbps);
+	int (*phy_post_init)(struct rcar_csi2 *priv);
+	int (*start_receiver)(struct rcar_csi2 *priv);
+	void (*enter_standby)(struct rcar_csi2 *priv);
+	const struct rcsi2_mbps_reg *hsfreqrange;
+	unsigned int csi0clkfreqrange;
+	unsigned int num_channels;
+	bool clear_ulps;
+	bool use_isp;
+	bool support_dphy;
+	bool support_cphy;
+};
+
+struct rcar_csi2 {
+	struct device *dev;
+	void __iomem *base;
+	const struct rcar_csi2_info *info;
+	struct reset_control *rstc;
+
+	struct v4l2_subdev subdev;
+	struct media_pad pads[NR_OF_RCAR_CSI2_PAD];
+
+	struct v4l2_async_notifier notifier;
+	struct v4l2_subdev *remote;
+	unsigned int remote_pad;
+
+	int channel_vc[4];
+
+	struct mutex lock; /* Protects mf and stream_count. */
+	struct v4l2_mbus_framefmt mf;
+	int stream_count;
+
+	bool cphy;
+	unsigned short lanes;
+	unsigned char lane_swap[4];
+};
+
+static inline struct rcar_csi2 *sd_to_csi2(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct rcar_csi2, subdev);
+}
+
+static inline struct rcar_csi2 *notifier_to_csi2(struct v4l2_async_notifier *n)
+{
+	return container_of(n, struct rcar_csi2, notifier);
+}
+
+static u32 rcsi2_read(struct rcar_csi2 *priv, unsigned int reg)
+{
+	return ioread32(priv->base + reg);
+}
+
+static void rcsi2_write(struct rcar_csi2 *priv, unsigned int reg, u32 data)
+{
+	iowrite32(data, priv->base + reg);
+}
+
+static void rcsi2_write16(struct rcar_csi2 *priv, unsigned int reg, u16 data)
+{
+	iowrite16(data, priv->base + reg);
+}
+
+static void rcsi2_enter_standby_gen3(struct rcar_csi2 *priv)
+{
+	rcsi2_write(priv, PHYCNT_REG, 0);
+	rcsi2_write(priv, PHTC_REG, PHTC_TESTCLR);
+}
+
+static void rcsi2_enter_standby(struct rcar_csi2 *priv)
+{
+	if (priv->info->enter_standby)
+		priv->info->enter_standby(priv);
+
+	reset_control_assert(priv->rstc);
+	usleep_range(100, 150);
+	pm_runtime_put(priv->dev);
+}
+
+static int rcsi2_exit_standby(struct rcar_csi2 *priv)
+{
+	int ret;
+
+	ret = pm_runtime_resume_and_get(priv->dev);
+	if (ret < 0)
+		return ret;
+
+	reset_control_deassert(priv->rstc);
+
+	return 0;
+}
+
+static int rcsi2_wait_phy_start(struct rcar_csi2 *priv,
+				unsigned int lanes)
+{
+	unsigned int timeout;
+
+	/* Wait for the clock and data lanes to enter LP-11 state. */
+	for (timeout = 0; timeout <= 20; timeout++) {
+		const u32 lane_mask = (1 << lanes) - 1;
+
+		if ((rcsi2_read(priv, PHCLM_REG) & PHCLM_STOPSTATECKL)  &&
+		    (rcsi2_read(priv, PHDLM_REG) & lane_mask) == lane_mask)
+			return 0;
+
+		usleep_range(1000, 2000);
+	}
+
+	dev_err(priv->dev, "Timeout waiting for LP-11 state\n");
+
+	return -ETIMEDOUT;
+}
+
+static int rcsi2_set_phypll(struct rcar_csi2 *priv, unsigned int mbps)
+{
+	const struct rcsi2_mbps_reg *hsfreq;
+	const struct rcsi2_mbps_reg *hsfreq_prev = NULL;
+
+	if (mbps < priv->info->hsfreqrange->mbps)
+		dev_warn(priv->dev, "%u Mbps less than min PHY speed %u Mbps",
+			 mbps, priv->info->hsfreqrange->mbps);
+
+	for (hsfreq = priv->info->hsfreqrange; hsfreq->mbps != 0; hsfreq++) {
+		if (hsfreq->mbps >= mbps)
+			break;
+		hsfreq_prev = hsfreq;
+	}
+
+	if (!hsfreq->mbps) {
+		dev_err(priv->dev, "Unsupported PHY speed (%u Mbps)", mbps);
+		return -ERANGE;
+	}
+
+	if (hsfreq_prev &&
+	    ((mbps - hsfreq_prev->mbps) <= (hsfreq->mbps - mbps)))
+		hsfreq = hsfreq_prev;
+
+	rcsi2_write(priv, PHYPLL_REG, PHYPLL_HSFREQRANGE(hsfreq->reg));
+
+	return 0;
+}
+
+static int rcsi2_calc_mbps(struct rcar_csi2 *priv, unsigned int bpp,
+			   unsigned int lanes)
+{
+	struct v4l2_subdev *source;
+	struct v4l2_ctrl *ctrl;
+	u64 mbps;
+
+	if (!priv->remote)
+		return -ENODEV;
+
+	source = priv->remote;
+
+	/* Read the pixel rate control from remote. */
+	ctrl = v4l2_ctrl_find(source->ctrl_handler, V4L2_CID_PIXEL_RATE);
+	if (!ctrl) {
+		dev_err(priv->dev, "no pixel rate control in subdev %s\n",
+			source->name);
+		return -EINVAL;
+	}
+
+	/*
+	 * Calculate the phypll in mbps.
+	 * link_freq = (pixel_rate * bits_per_sample) / (2 * nr_of_lanes)
+	 * bps = link_freq * 2
+	 */
+	mbps = v4l2_ctrl_g_ctrl_int64(ctrl) * bpp;
+	do_div(mbps, lanes * 1000000);
+
+	/* Adjust for C-PHY, divide by 2.8. */
+	if (priv->cphy)
+		mbps = div_u64(mbps * 5, 14);
+
+	return mbps;
+}
+
+static int rcsi2_get_active_lanes(struct rcar_csi2 *priv,
+				  unsigned int *lanes)
+{
+	struct v4l2_mbus_config mbus_config = { 0 };
+	int ret;
+
+	*lanes = priv->lanes;
+
+	ret = v4l2_subdev_call(priv->remote, pad, get_mbus_config,
+			       priv->remote_pad, &mbus_config);
+	if (ret == -ENOIOCTLCMD) {
+		dev_dbg(priv->dev, "No remote mbus configuration available\n");
+		return 0;
+	}
+
+	if (ret) {
+		dev_err(priv->dev, "Failed to get remote mbus configuration\n");
+		return ret;
+	}
+
+	switch (mbus_config.type) {
+	case V4L2_MBUS_CSI2_CPHY:
+		if (!priv->cphy)
+			return -EINVAL;
+		break;
+	case V4L2_MBUS_CSI2_DPHY:
+		if (priv->cphy)
+			return -EINVAL;
+		break;
+	default:
+		dev_err(priv->dev, "Unsupported media bus type %u\n",
+			mbus_config.type);
+		return -EINVAL;
+	}
+
+	if (mbus_config.bus.mipi_csi2.num_data_lanes > priv->lanes) {
+		dev_err(priv->dev,
+			"Unsupported mbus config: too many data lanes %u\n",
+			mbus_config.bus.mipi_csi2.num_data_lanes);
+		return -EINVAL;
+	}
+
+	*lanes = mbus_config.bus.mipi_csi2.num_data_lanes;
+
+	return 0;
+}
+
+static int rcsi2_start_receiver_gen3(struct rcar_csi2 *priv)
+{
+	const struct rcar_csi2_format *format;
+	u32 phycnt, vcdt = 0, vcdt2 = 0, fld = 0;
+	unsigned int lanes;
+	unsigned int i;
+	int mbps, ret;
+
+	dev_dbg(priv->dev, "Input size (%ux%u%c)\n",
+		priv->mf.width, priv->mf.height,
+		priv->mf.field == V4L2_FIELD_NONE ? 'p' : 'i');
+
+	/* Code is validated in set_fmt. */
+	format = rcsi2_code_to_fmt(priv->mf.code);
+	if (!format)
+		return -EINVAL;
+
+	/*
+	 * Enable all supported CSI-2 channels with virtual channel and
+	 * data type matching.
+	 *
+	 * NOTE: It's not possible to get individual datatype for each
+	 *       source virtual channel. Once this is possible in V4L2
+	 *       it should be used here.
+	 */
+	for (i = 0; i < priv->info->num_channels; i++) {
+		u32 vcdt_part;
+
+		if (priv->channel_vc[i] < 0)
+			continue;
+
+		vcdt_part = VCDT_SEL_VC(priv->channel_vc[i]) | VCDT_VCDTN_EN |
+			VCDT_SEL_DTN_ON | VCDT_SEL_DT(format->datatype);
+
+		/* Store in correct reg and offset. */
+		if (i < 2)
+			vcdt |= vcdt_part << ((i % 2) * 16);
+		else
+			vcdt2 |= vcdt_part << ((i % 2) * 16);
+	}
+
+	if (priv->mf.field == V4L2_FIELD_ALTERNATE) {
+		fld = FLD_DET_SEL(1) | FLD_FLD_EN4 | FLD_FLD_EN3 | FLD_FLD_EN2
+			| FLD_FLD_EN;
+
+		if (priv->mf.height == 240)
+			fld |= FLD_FLD_NUM(0);
+		else
+			fld |= FLD_FLD_NUM(1);
+	}
+
+	/*
+	 * Get the number of active data lanes inspecting the remote mbus
+	 * configuration.
+	 */
+	ret = rcsi2_get_active_lanes(priv, &lanes);
+	if (ret)
+		return ret;
+
+	phycnt = PHYCNT_ENABLECLK;
+	phycnt |= (1 << lanes) - 1;
+
+	mbps = rcsi2_calc_mbps(priv, format->bpp, lanes);
+	if (mbps < 0)
+		return mbps;
+
+	/* Enable interrupts. */
+	rcsi2_write(priv, INTEN_REG, INTEN_INT_AFIFO_OF | INTEN_INT_ERRSOTHS
+		    | INTEN_INT_ERRSOTSYNCHS);
+
+	/* Init */
+	rcsi2_write(priv, TREF_REG, TREF_TREF);
+	rcsi2_write(priv, PHTC_REG, 0);
+
+	/* Configure */
+	if (!priv->info->use_isp) {
+		rcsi2_write(priv, VCDT_REG, vcdt);
+		if (vcdt2)
+			rcsi2_write(priv, VCDT2_REG, vcdt2);
+	}
+
+	/* Lanes are zero indexed. */
+	rcsi2_write(priv, LSWAP_REG,
+		    LSWAP_L0SEL(priv->lane_swap[0] - 1) |
+		    LSWAP_L1SEL(priv->lane_swap[1] - 1) |
+		    LSWAP_L2SEL(priv->lane_swap[2] - 1) |
+		    LSWAP_L3SEL(priv->lane_swap[3] - 1));
+
+	/* Start */
+	if (priv->info->init_phtw) {
+		ret = priv->info->init_phtw(priv, mbps);
+		if (ret)
+			return ret;
+	}
+
+	if (priv->info->hsfreqrange) {
+		ret = rcsi2_set_phypll(priv, mbps);
+		if (ret)
+			return ret;
+	}
+
+	if (priv->info->csi0clkfreqrange)
+		rcsi2_write(priv, CSI0CLKFCPR_REG,
+			    CSI0CLKFREQRANGE(priv->info->csi0clkfreqrange));
+
+	if (priv->info->use_isp)
+		rcsi2_write(priv, PHYFRX_REG,
+			    PHYFRX_FORCERX_MODE_3 | PHYFRX_FORCERX_MODE_2 |
+			    PHYFRX_FORCERX_MODE_1 | PHYFRX_FORCERX_MODE_0);
+
+	rcsi2_write(priv, PHYCNT_REG, phycnt);
+	rcsi2_write(priv, LINKCNT_REG, LINKCNT_MONITOR_EN |
+		    LINKCNT_REG_MONI_PACT_EN | LINKCNT_ICLK_NONSTOP);
+	rcsi2_write(priv, FLD_REG, fld);
+	rcsi2_write(priv, PHYCNT_REG, phycnt | PHYCNT_SHUTDOWNZ);
+	rcsi2_write(priv, PHYCNT_REG, phycnt | PHYCNT_SHUTDOWNZ | PHYCNT_RSTZ);
+
+	ret = rcsi2_wait_phy_start(priv, lanes);
+	if (ret)
+		return ret;
+
+	if (priv->info->use_isp)
+		rcsi2_write(priv, PHYFRX_REG, 0);
+
+	/* Run post PHY start initialization, if needed. */
+	if (priv->info->phy_post_init) {
+		ret = priv->info->phy_post_init(priv);
+		if (ret)
+			return ret;
+	}
+
+	/* Clear Ultra Low Power interrupt. */
+	if (priv->info->clear_ulps)
+		rcsi2_write(priv, INTSTATE_REG,
+			    INTSTATE_INT_ULPS_START |
+			    INTSTATE_INT_ULPS_END);
+	return 0;
+}
+
+static int rcsi2_wait_phy_start_v4h(struct rcar_csi2 *priv, u32 match)
+{
+	unsigned int timeout;
+	u32 status;
+
+	for (timeout = 0; timeout <= 10; timeout++) {
+		status = rcsi2_read(priv, V4H_ST_PHYST_REG);
+		if ((status & match) == match)
+			return 0;
+
+		usleep_range(1000, 2000);
+	}
+
+	return -ETIMEDOUT;
+}
+
+static int rcsi2_c_phy_setting_v4h(struct rcar_csi2 *priv, int msps)
+{
+	const struct rcsi2_cphy_setting *conf;
+
+	for (conf = cphy_setting_table_r8a779g0; conf->msps != 0; conf++) {
+		if (conf->msps > msps)
+			break;
+	}
+
+	if (!conf->msps) {
+		dev_err(priv->dev, "Unsupported PHY speed for msps setting (%u Msps)", msps);
+		return -ERANGE;
+	}
+
+	/* C-PHY specific */
+	rcsi2_write16(priv, V4H_CORE_DIG_RW_COMMON_REG(7), 0x0155);
+	rcsi2_write16(priv, V4H_PPI_STARTUP_RW_COMMON_DPHY_REG(7), 0x0068);
+	rcsi2_write16(priv, V4H_PPI_STARTUP_RW_COMMON_DPHY_REG(8), 0x0010);
+
+	rcsi2_write16(priv, V4H_CORE_DIG_CLANE_0_RW_LP_0_REG, 0x463c);
+	rcsi2_write16(priv, V4H_CORE_DIG_CLANE_1_RW_LP_0_REG, 0x463c);
+	rcsi2_write16(priv, V4H_CORE_DIG_CLANE_2_RW_LP_0_REG, 0x463c);
+
+	rcsi2_write16(priv, V4H_CORE_DIG_CLANE_0_RW_HS_RX_REG(0), 0x00d5);
+	rcsi2_write16(priv, V4H_CORE_DIG_CLANE_1_RW_HS_RX_REG(0), 0x00d5);
+	rcsi2_write16(priv, V4H_CORE_DIG_CLANE_2_RW_HS_RX_REG(0), 0x00d5);
+
+	rcsi2_write16(priv, V4H_CORE_DIG_CLANE_0_RW_HS_RX_REG(1), 0x0013);
+	rcsi2_write16(priv, V4H_CORE_DIG_CLANE_1_RW_HS_RX_REG(1), 0x0013);
+	rcsi2_write16(priv, V4H_CORE_DIG_CLANE_2_RW_HS_RX_REG(1), 0x0013);
+
+	rcsi2_write16(priv, V4H_CORE_DIG_CLANE_0_RW_HS_RX_REG(5), 0x0013);
+	rcsi2_write16(priv, V4H_CORE_DIG_CLANE_1_RW_HS_RX_REG(5), 0x0013);
+	rcsi2_write16(priv, V4H_CORE_DIG_CLANE_2_RW_HS_RX_REG(5), 0x0013);
+
+	rcsi2_write16(priv, V4H_CORE_DIG_CLANE_0_RW_HS_RX_REG(6), 0x000a);
+	rcsi2_write16(priv, V4H_CORE_DIG_CLANE_1_RW_HS_RX_REG(6), 0x000a);
+	rcsi2_write16(priv, V4H_CORE_DIG_CLANE_2_RW_HS_RX_REG(6), 0x000a);
+
+	rcsi2_write16(priv, V4H_CORE_DIG_CLANE_0_RW_HS_RX_REG(2), conf->rx2);
+	rcsi2_write16(priv, V4H_CORE_DIG_CLANE_1_RW_HS_RX_REG(2), conf->rx2);
+	rcsi2_write16(priv, V4H_CORE_DIG_CLANE_2_RW_HS_RX_REG(2), conf->rx2);
+
+	rcsi2_write16(priv, V4H_CORE_DIG_IOCTRL_RW_AFE_LANE0_CTRL_2_REG(2), 0x0001);
+	rcsi2_write16(priv, V4H_CORE_DIG_IOCTRL_RW_AFE_LANE1_CTRL_2_REG(2), 0);
+	rcsi2_write16(priv, V4H_CORE_DIG_IOCTRL_RW_AFE_LANE2_CTRL_2_REG(2), 0x0001);
+	rcsi2_write16(priv, V4H_CORE_DIG_IOCTRL_RW_AFE_LANE3_CTRL_2_REG(2), 0x0001);
+	rcsi2_write16(priv, V4H_CORE_DIG_IOCTRL_RW_AFE_LANE4_CTRL_2_REG(2), 0);
+
+	rcsi2_write16(priv, V4H_CORE_DIG_RW_TRIO0_REG(0), conf->trio0);
+	rcsi2_write16(priv, V4H_CORE_DIG_RW_TRIO1_REG(0), conf->trio0);
+	rcsi2_write16(priv, V4H_CORE_DIG_RW_TRIO2_REG(0), conf->trio0);
+
+	rcsi2_write16(priv, V4H_CORE_DIG_RW_TRIO0_REG(2), conf->trio2);
+	rcsi2_write16(priv, V4H_CORE_DIG_RW_TRIO1_REG(2), conf->trio2);
+	rcsi2_write16(priv, V4H_CORE_DIG_RW_TRIO2_REG(2), conf->trio2);
+
+	rcsi2_write16(priv, V4H_CORE_DIG_RW_TRIO0_REG(1), conf->trio1);
+	rcsi2_write16(priv, V4H_CORE_DIG_RW_TRIO1_REG(1), conf->trio1);
+	rcsi2_write16(priv, V4H_CORE_DIG_RW_TRIO2_REG(1), conf->trio1);
+
+	/*
+	 * Configure pin-swap.
+	 * TODO: This registers is not documented yet, the values should depend
+	 * on the 'clock-lanes' and 'data-lanes' devicetree properties.
+	 */
+	rcsi2_write16(priv, V4H_CORE_DIG_CLANE_1_RW_CFG_0_REG, 0xf5);
+	rcsi2_write16(priv, V4H_CORE_DIG_CLANE_1_RW_HS_TX_6_REG, 0x5000);
+
+	/* Leave Shutdown mode */
+	rcsi2_write(priv, V4H_DPHY_RSTZ_REG, BIT(0));
+	rcsi2_write(priv, V4H_PHY_SHUTDOWNZ_REG, BIT(0));
+
+	/* Wait for calibration */
+	if (rcsi2_wait_phy_start_v4h(priv, V4H_ST_PHYST_ST_PHY_READY)) {
+		dev_err(priv->dev, "PHY calibration failed\n");
+		return -ETIMEDOUT;
+	}
+
+	/* C-PHY setting - analog programing*/
+	rcsi2_write16(priv, V4H_CORE_DIG_IOCTRL_RW_AFE_LANE0_CTRL_2_REG(9), conf->lane29);
+	rcsi2_write16(priv, V4H_CORE_DIG_IOCTRL_RW_AFE_LANE0_CTRL_2_REG(7), conf->lane27);
+
+	return 0;
+}
+
+static int rcsi2_start_receiver_v4h(struct rcar_csi2 *priv)
+{
+	const struct rcar_csi2_format *format;
+	unsigned int lanes;
+	int msps;
+	int ret;
+
+	/* Calculate parameters */
+	format = rcsi2_code_to_fmt(priv->mf.code);
+	if (!format)
+		return -EINVAL;
+
+	ret = rcsi2_get_active_lanes(priv, &lanes);
+	if (ret)
+		return ret;
+
+	msps = rcsi2_calc_mbps(priv, format->bpp, lanes);
+	if (msps < 0)
+		return msps;
+
+	/* Reset LINK and PHY*/
+	rcsi2_write(priv, V4H_CSI2_RESETN_REG, 0);
+	rcsi2_write(priv, V4H_DPHY_RSTZ_REG, 0);
+	rcsi2_write(priv, V4H_PHY_SHUTDOWNZ_REG, 0);
+
+	/* PHY static setting */
+	rcsi2_write(priv, V4H_PHY_EN_REG, BIT(0));
+	rcsi2_write(priv, V4H_FLDC_REG, 0);
+	rcsi2_write(priv, V4H_FLDD_REG, 0);
+	rcsi2_write(priv, V4H_IDIC_REG, 0);
+	rcsi2_write(priv, V4H_PHY_MODE_REG, BIT(0));
+	rcsi2_write(priv, V4H_N_LANES_REG, lanes - 1);
+
+	/* Reset CSI2 */
+	rcsi2_write(priv, V4H_CSI2_RESETN_REG, BIT(0));
+
+	/* Registers static setting through APB */
+	/* Common setting */
+	rcsi2_write16(priv, V4H_CORE_DIG_ANACTRL_RW_COMMON_ANACTRL_REG(0), 0x1bfd);
+	rcsi2_write16(priv, V4H_PPI_STARTUP_RW_COMMON_STARTUP_1_1_REG, 0x0233);
+	rcsi2_write16(priv, V4H_PPI_STARTUP_RW_COMMON_DPHY_REG(6), 0x0027);
+	rcsi2_write16(priv, V4H_PPI_CALIBCTRL_RW_COMMON_BG_0_REG, 0x01f4);
+	rcsi2_write16(priv, V4H_PPI_RW_TERMCAL_CFG_0_REG, 0x0013);
+	rcsi2_write16(priv, V4H_PPI_RW_OFFSETCAL_CFG_0_REG, 0x0003);
+	rcsi2_write16(priv, V4H_PPI_RW_LPDCOCAL_TIMEBASE_REG, 0x004f);
+	rcsi2_write16(priv, V4H_PPI_RW_LPDCOCAL_NREF_REG, 0x0320);
+	rcsi2_write16(priv, V4H_PPI_RW_LPDCOCAL_NREF_RANGE_REG, 0x000f);
+	rcsi2_write16(priv, V4H_PPI_RW_LPDCOCAL_TWAIT_CONFIG_REG, 0xfe18);
+	rcsi2_write16(priv, V4H_PPI_RW_LPDCOCAL_VT_CONFIG_REG, 0x0c3c);
+	rcsi2_write16(priv, V4H_PPI_RW_LPDCOCAL_COARSE_CFG_REG, 0x0105);
+	rcsi2_write16(priv, V4H_CORE_DIG_IOCTRL_RW_AFE_CB_CTRL_2_REG(6), 0x1000);
+	rcsi2_write16(priv, V4H_PPI_RW_COMMON_CFG_REG, 0x0003);
+
+	/* C-PHY settings */
+	ret = rcsi2_c_phy_setting_v4h(priv, msps);
+	if (ret)
+		return ret;
+
+	rcsi2_wait_phy_start_v4h(priv, V4H_ST_PHYST_ST_STOPSTATE_0 |
+				 V4H_ST_PHYST_ST_STOPSTATE_1 |
+				 V4H_ST_PHYST_ST_STOPSTATE_2);
+
+	return 0;
+}
+
+static int rcsi2_start(struct rcar_csi2 *priv)
+{
+	int ret;
+
+	ret = rcsi2_exit_standby(priv);
+	if (ret < 0)
+		return ret;
+
+	ret = priv->info->start_receiver(priv);
+	if (ret) {
+		rcsi2_enter_standby(priv);
+		return ret;
+	}
+
+	ret = v4l2_subdev_call(priv->remote, video, s_stream, 1);
+	if (ret) {
+		rcsi2_enter_standby(priv);
+		return ret;
+	}
+
+	return 0;
+}
+
+static void rcsi2_stop(struct rcar_csi2 *priv)
+{
+	rcsi2_enter_standby(priv);
+	v4l2_subdev_call(priv->remote, video, s_stream, 0);
+}
+
+static int rcsi2_s_stream(struct v4l2_subdev *sd, int enable)
+{
+	struct rcar_csi2 *priv = sd_to_csi2(sd);
+	int ret = 0;
+
+	mutex_lock(&priv->lock);
+
+	if (!priv->remote) {
+		ret = -ENODEV;
+		goto out;
+	}
+
+	if (enable && priv->stream_count == 0) {
+		ret = rcsi2_start(priv);
+		if (ret)
+			goto out;
+	} else if (!enable && priv->stream_count == 1) {
+		rcsi2_stop(priv);
+	}
+
+	priv->stream_count += enable ? 1 : -1;
+out:
+	mutex_unlock(&priv->lock);
+
+	return ret;
+}
+
+static int rcsi2_set_pad_format(struct v4l2_subdev *sd,
+				struct v4l2_subdev_state *sd_state,
+				struct v4l2_subdev_format *format)
+{
+	struct rcar_csi2 *priv = sd_to_csi2(sd);
+	struct v4l2_mbus_framefmt *framefmt;
+
+	mutex_lock(&priv->lock);
+
+	if (!rcsi2_code_to_fmt(format->format.code))
+		format->format.code = rcar_csi2_formats[0].code;
+
+	if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
+		priv->mf = format->format;
+	} else {
+		framefmt = v4l2_subdev_get_try_format(sd, sd_state, 0);
+		*framefmt = format->format;
+	}
+
+	mutex_unlock(&priv->lock);
+
+	return 0;
+}
+
+static int rcsi2_get_pad_format(struct v4l2_subdev *sd,
+				struct v4l2_subdev_state *sd_state,
+				struct v4l2_subdev_format *format)
+{
+	struct rcar_csi2 *priv = sd_to_csi2(sd);
+
+	mutex_lock(&priv->lock);
+
+	if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE)
+		format->format = priv->mf;
+	else
+		format->format = *v4l2_subdev_get_try_format(sd, sd_state, 0);
+
+	mutex_unlock(&priv->lock);
+
+	return 0;
+}
+
+static const struct v4l2_subdev_video_ops rcar_csi2_video_ops = {
+	.s_stream = rcsi2_s_stream,
+};
+
+static const struct v4l2_subdev_pad_ops rcar_csi2_pad_ops = {
+	.set_fmt = rcsi2_set_pad_format,
+	.get_fmt = rcsi2_get_pad_format,
+};
+
+static const struct v4l2_subdev_ops rcar_csi2_subdev_ops = {
+	.video	= &rcar_csi2_video_ops,
+	.pad	= &rcar_csi2_pad_ops,
+};
+
+static irqreturn_t rcsi2_irq(int irq, void *data)
+{
+	struct rcar_csi2 *priv = data;
+	u32 status, err_status;
+
+	status = rcsi2_read(priv, INTSTATE_REG);
+	err_status = rcsi2_read(priv, INTERRSTATE_REG);
+
+	if (!status)
+		return IRQ_HANDLED;
+
+	rcsi2_write(priv, INTSTATE_REG, status);
+
+	if (!err_status)
+		return IRQ_HANDLED;
+
+	rcsi2_write(priv, INTERRSTATE_REG, err_status);
+
+	dev_info(priv->dev, "Transfer error, restarting CSI-2 receiver\n");
+
+	return IRQ_WAKE_THREAD;
+}
+
+static irqreturn_t rcsi2_irq_thread(int irq, void *data)
+{
+	struct rcar_csi2 *priv = data;
+
+	mutex_lock(&priv->lock);
+	rcsi2_stop(priv);
+	usleep_range(1000, 2000);
+	if (rcsi2_start(priv))
+		dev_warn(priv->dev, "Failed to restart CSI-2 receiver\n");
+	mutex_unlock(&priv->lock);
+
+	return IRQ_HANDLED;
+}
+
+/* -----------------------------------------------------------------------------
+ * Async handling and registration of subdevices and links.
+ */
+
+static int rcsi2_notify_bound(struct v4l2_async_notifier *notifier,
+			      struct v4l2_subdev *subdev,
+			      struct v4l2_async_connection *asc)
+{
+	struct rcar_csi2 *priv = notifier_to_csi2(notifier);
+	int pad;
+
+	pad = media_entity_get_fwnode_pad(&subdev->entity, asc->match.fwnode,
+					  MEDIA_PAD_FL_SOURCE);
+	if (pad < 0) {
+		dev_err(priv->dev, "Failed to find pad for %s\n", subdev->name);
+		return pad;
+	}
+
+	priv->remote = subdev;
+	priv->remote_pad = pad;
+
+	dev_dbg(priv->dev, "Bound %s pad: %d\n", subdev->name, pad);
+
+	return media_create_pad_link(&subdev->entity, pad,
+				     &priv->subdev.entity, 0,
+				     MEDIA_LNK_FL_ENABLED |
+				     MEDIA_LNK_FL_IMMUTABLE);
+}
+
+static void rcsi2_notify_unbind(struct v4l2_async_notifier *notifier,
+				struct v4l2_subdev *subdev,
+				struct v4l2_async_connection *asc)
+{
+	struct rcar_csi2 *priv = notifier_to_csi2(notifier);
+
+	priv->remote = NULL;
+
+	dev_dbg(priv->dev, "Unbind %s\n", subdev->name);
+}
+
+static const struct v4l2_async_notifier_operations rcar_csi2_notify_ops = {
+	.bound = rcsi2_notify_bound,
+	.unbind = rcsi2_notify_unbind,
+};
+
+static int rcsi2_parse_v4l2(struct rcar_csi2 *priv,
+			    struct v4l2_fwnode_endpoint *vep)
+{
+	unsigned int i;
+
+	/* Only port 0 endpoint 0 is valid. */
+	if (vep->base.port || vep->base.id)
+		return -ENOTCONN;
+
+	priv->lanes = vep->bus.mipi_csi2.num_data_lanes;
+
+	switch (vep->bus_type) {
+	case V4L2_MBUS_CSI2_DPHY:
+		if (!priv->info->support_dphy) {
+			dev_err(priv->dev, "D-PHY not supported\n");
+			return -EINVAL;
+		}
+
+		if (priv->lanes != 1 && priv->lanes != 2 && priv->lanes != 4) {
+			dev_err(priv->dev,
+				"Unsupported number of data-lanes for D-PHY: %u\n",
+				priv->lanes);
+			return -EINVAL;
+		}
+
+		priv->cphy = false;
+		break;
+	case V4L2_MBUS_CSI2_CPHY:
+		if (!priv->info->support_cphy) {
+			dev_err(priv->dev, "C-PHY not supported\n");
+			return -EINVAL;
+		}
+
+		if (priv->lanes != 3) {
+			dev_err(priv->dev,
+				"Unsupported number of data-lanes for C-PHY: %u\n",
+				priv->lanes);
+			return -EINVAL;
+		}
+
+		priv->cphy = true;
+		break;
+	default:
+		dev_err(priv->dev, "Unsupported bus: %u\n", vep->bus_type);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(priv->lane_swap); i++) {
+		priv->lane_swap[i] = i < priv->lanes ?
+			vep->bus.mipi_csi2.data_lanes[i] : i;
+
+		/* Check for valid lane number. */
+		if (priv->lane_swap[i] < 1 || priv->lane_swap[i] > 4) {
+			dev_err(priv->dev, "data-lanes must be in 1-4 range\n");
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+static int rcsi2_parse_dt(struct rcar_csi2 *priv)
+{
+	struct v4l2_async_connection *asc;
+	struct fwnode_handle *fwnode;
+	struct fwnode_handle *ep;
+	struct v4l2_fwnode_endpoint v4l2_ep = {
+		.bus_type = V4L2_MBUS_UNKNOWN,
+	};
+	int ret;
+
+	ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(priv->dev), 0, 0, 0);
+	if (!ep) {
+		dev_err(priv->dev, "Not connected to subdevice\n");
+		return -EINVAL;
+	}
+
+	ret = v4l2_fwnode_endpoint_parse(ep, &v4l2_ep);
+	if (ret) {
+		dev_err(priv->dev, "Could not parse v4l2 endpoint\n");
+		fwnode_handle_put(ep);
+		return -EINVAL;
+	}
+
+	ret = rcsi2_parse_v4l2(priv, &v4l2_ep);
+	if (ret) {
+		fwnode_handle_put(ep);
+		return ret;
+	}
+
+	fwnode = fwnode_graph_get_remote_endpoint(ep);
+	fwnode_handle_put(ep);
+
+	dev_dbg(priv->dev, "Found '%pOF'\n", to_of_node(fwnode));
+
+	v4l2_async_subdev_nf_init(&priv->notifier, &priv->subdev);
+	priv->notifier.ops = &rcar_csi2_notify_ops;
+
+	asc = v4l2_async_nf_add_fwnode(&priv->notifier, fwnode,
+				       struct v4l2_async_connection);
+	fwnode_handle_put(fwnode);
+	if (IS_ERR(asc))
+		return PTR_ERR(asc);
+
+	ret = v4l2_async_nf_register(&priv->notifier);
+	if (ret)
+		v4l2_async_nf_cleanup(&priv->notifier);
+
+	return ret;
+}
+
+/* -----------------------------------------------------------------------------
+ * PHTW initialization sequences.
+ *
+ * NOTE: Magic values are from the datasheet and lack documentation.
+ */
+
+static int rcsi2_phtw_write(struct rcar_csi2 *priv, u16 data, u16 code)
+{
+	unsigned int timeout;
+
+	rcsi2_write(priv, PHTW_REG,
+		    PHTW_DWEN | PHTW_TESTDIN_DATA(data) |
+		    PHTW_CWEN | PHTW_TESTDIN_CODE(code));
+
+	/* Wait for DWEN and CWEN to be cleared by hardware. */
+	for (timeout = 0; timeout <= 20; timeout++) {
+		if (!(rcsi2_read(priv, PHTW_REG) & (PHTW_DWEN | PHTW_CWEN)))
+			return 0;
+
+		usleep_range(1000, 2000);
+	}
+
+	dev_err(priv->dev, "Timeout waiting for PHTW_DWEN and/or PHTW_CWEN\n");
+
+	return -ETIMEDOUT;
+}
+
+static int rcsi2_phtw_write_array(struct rcar_csi2 *priv,
+				  const struct phtw_value *values)
+{
+	const struct phtw_value *value;
+	int ret;
+
+	for (value = values; value->data || value->code; value++) {
+		ret = rcsi2_phtw_write(priv, value->data, value->code);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int rcsi2_phtw_write_mbps(struct rcar_csi2 *priv, unsigned int mbps,
+				 const struct rcsi2_mbps_reg *values, u16 code)
+{
+	const struct rcsi2_mbps_reg *value;
+	const struct rcsi2_mbps_reg *prev_value = NULL;
+
+	for (value = values; value->mbps; value++) {
+		if (value->mbps >= mbps)
+			break;
+		prev_value = value;
+	}
+
+	if (prev_value &&
+	    ((mbps - prev_value->mbps) <= (value->mbps - mbps)))
+		value = prev_value;
+
+	if (!value->mbps) {
+		dev_err(priv->dev, "Unsupported PHY speed (%u Mbps)", mbps);
+		return -ERANGE;
+	}
+
+	return rcsi2_phtw_write(priv, value->reg, code);
+}
+
+static int __rcsi2_init_phtw_h3_v3h_m3n(struct rcar_csi2 *priv,
+					unsigned int mbps)
+{
+	static const struct phtw_value step1[] = {
+		{ .data = 0xcc, .code = 0xe2 },
+		{ .data = 0x01, .code = 0xe3 },
+		{ .data = 0x11, .code = 0xe4 },
+		{ .data = 0x01, .code = 0xe5 },
+		{ .data = 0x10, .code = 0x04 },
+		{ /* sentinel */ },
+	};
+
+	static const struct phtw_value step2[] = {
+		{ .data = 0x38, .code = 0x08 },
+		{ .data = 0x01, .code = 0x00 },
+		{ .data = 0x4b, .code = 0xac },
+		{ .data = 0x03, .code = 0x00 },
+		{ .data = 0x80, .code = 0x07 },
+		{ /* sentinel */ },
+	};
+
+	int ret;
+
+	ret = rcsi2_phtw_write_array(priv, step1);
+	if (ret)
+		return ret;
+
+	if (mbps != 0 && mbps <= 250) {
+		ret = rcsi2_phtw_write(priv, 0x39, 0x05);
+		if (ret)
+			return ret;
+
+		ret = rcsi2_phtw_write_mbps(priv, mbps, phtw_mbps_h3_v3h_m3n,
+					    0xf1);
+		if (ret)
+			return ret;
+	}
+
+	return rcsi2_phtw_write_array(priv, step2);
+}
+
+static int rcsi2_init_phtw_h3_v3h_m3n(struct rcar_csi2 *priv, unsigned int mbps)
+{
+	return __rcsi2_init_phtw_h3_v3h_m3n(priv, mbps);
+}
+
+static int rcsi2_init_phtw_h3es2(struct rcar_csi2 *priv, unsigned int mbps)
+{
+	return __rcsi2_init_phtw_h3_v3h_m3n(priv, 0);
+}
+
+static int rcsi2_init_phtw_v3m_e3(struct rcar_csi2 *priv, unsigned int mbps)
+{
+	return rcsi2_phtw_write_mbps(priv, mbps, phtw_mbps_v3m_e3, 0x44);
+}
+
+static int rcsi2_phy_post_init_v3m_e3(struct rcar_csi2 *priv)
+{
+	static const struct phtw_value step1[] = {
+		{ .data = 0xee, .code = 0x34 },
+		{ .data = 0xee, .code = 0x44 },
+		{ .data = 0xee, .code = 0x54 },
+		{ .data = 0xee, .code = 0x84 },
+		{ .data = 0xee, .code = 0x94 },
+		{ /* sentinel */ },
+	};
+
+	return rcsi2_phtw_write_array(priv, step1);
+}
+
+static int rcsi2_init_phtw_v3u(struct rcar_csi2 *priv,
+			       unsigned int mbps)
+{
+	/* In case of 1500Mbps or less */
+	static const struct phtw_value step1[] = {
+		{ .data = 0xcc, .code = 0xe2 },
+		{ /* sentinel */ },
+	};
+
+	static const struct phtw_value step2[] = {
+		{ .data = 0x01, .code = 0xe3 },
+		{ .data = 0x11, .code = 0xe4 },
+		{ .data = 0x01, .code = 0xe5 },
+		{ /* sentinel */ },
+	};
+
+	/* In case of 1500Mbps or less */
+	static const struct phtw_value step3[] = {
+		{ .data = 0x38, .code = 0x08 },
+		{ /* sentinel */ },
+	};
+
+	static const struct phtw_value step4[] = {
+		{ .data = 0x01, .code = 0x00 },
+		{ .data = 0x4b, .code = 0xac },
+		{ .data = 0x03, .code = 0x00 },
+		{ .data = 0x80, .code = 0x07 },
+		{ /* sentinel */ },
+	};
+
+	int ret;
+
+	if (mbps != 0 && mbps <= 1500)
+		ret = rcsi2_phtw_write_array(priv, step1);
+	else
+		ret = rcsi2_phtw_write_mbps(priv, mbps, phtw_mbps_v3u, 0xe2);
+	if (ret)
+		return ret;
+
+	ret = rcsi2_phtw_write_array(priv, step2);
+	if (ret)
+		return ret;
+
+	if (mbps != 0 && mbps <= 1500) {
+		ret = rcsi2_phtw_write_array(priv, step3);
+		if (ret)
+			return ret;
+	}
+
+	ret = rcsi2_phtw_write_array(priv, step4);
+	if (ret)
+		return ret;
+
+	return ret;
+}
+
+/* -----------------------------------------------------------------------------
+ * Platform Device Driver.
+ */
+
+static int rcsi2_link_setup(struct media_entity *entity,
+			    const struct media_pad *local,
+			    const struct media_pad *remote, u32 flags)
+{
+	struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
+	struct rcar_csi2 *priv = sd_to_csi2(sd);
+	struct video_device *vdev;
+	int channel, vc;
+	u32 id;
+
+	if (!is_media_entity_v4l2_video_device(remote->entity)) {
+		dev_err(priv->dev, "Remote is not a video device\n");
+		return -EINVAL;
+	}
+
+	vdev = media_entity_to_video_device(remote->entity);
+
+	if (of_property_read_u32(vdev->dev_parent->of_node, "renesas,id", &id)) {
+		dev_err(priv->dev, "No renesas,id, can't configure routing\n");
+		return -EINVAL;
+	}
+
+	channel = id % 4;
+
+	if (flags & MEDIA_LNK_FL_ENABLED) {
+		if (media_pad_remote_pad_first(local)) {
+			dev_dbg(priv->dev,
+				"Each VC can only be routed to one output channel\n");
+			return -EINVAL;
+		}
+
+		vc = local->index - 1;
+
+		dev_dbg(priv->dev, "Route VC%d to VIN%u on output channel %d\n",
+			vc, id, channel);
+	} else {
+		vc = -1;
+	}
+
+	priv->channel_vc[channel] = vc;
+
+	return 0;
+}
+
+static const struct media_entity_operations rcar_csi2_entity_ops = {
+	.link_setup = rcsi2_link_setup,
+	.link_validate = v4l2_subdev_link_validate,
+};
+
+static int rcsi2_probe_resources(struct rcar_csi2 *priv,
+				 struct platform_device *pdev)
+{
+	int irq, ret;
+
+	priv->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(priv->base))
+		return PTR_ERR(priv->base);
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	ret = devm_request_threaded_irq(&pdev->dev, irq, rcsi2_irq,
+					rcsi2_irq_thread, IRQF_SHARED,
+					KBUILD_MODNAME, priv);
+	if (ret)
+		return ret;
+
+	priv->rstc = devm_reset_control_get(&pdev->dev, NULL);
+
+	return PTR_ERR_OR_ZERO(priv->rstc);
+}
+
+static const struct rcar_csi2_info rcar_csi2_info_r8a7795 = {
+	.init_phtw = rcsi2_init_phtw_h3_v3h_m3n,
+	.start_receiver = rcsi2_start_receiver_gen3,
+	.enter_standby = rcsi2_enter_standby_gen3,
+	.hsfreqrange = hsfreqrange_h3_v3h_m3n,
+	.csi0clkfreqrange = 0x20,
+	.num_channels = 4,
+	.clear_ulps = true,
+	.support_dphy = true,
+};
+
+static const struct rcar_csi2_info rcar_csi2_info_r8a7795es2 = {
+	.init_phtw = rcsi2_init_phtw_h3es2,
+	.start_receiver = rcsi2_start_receiver_gen3,
+	.enter_standby = rcsi2_enter_standby_gen3,
+	.hsfreqrange = hsfreqrange_h3_v3h_m3n,
+	.csi0clkfreqrange = 0x20,
+	.num_channels = 4,
+	.clear_ulps = true,
+	.support_dphy = true,
+};
+
+static const struct rcar_csi2_info rcar_csi2_info_r8a7796 = {
+	.start_receiver = rcsi2_start_receiver_gen3,
+	.enter_standby = rcsi2_enter_standby_gen3,
+	.hsfreqrange = hsfreqrange_m3w,
+	.num_channels = 4,
+	.support_dphy = true,
+};
+
+static const struct rcar_csi2_info rcar_csi2_info_r8a77961 = {
+	.start_receiver = rcsi2_start_receiver_gen3,
+	.enter_standby = rcsi2_enter_standby_gen3,
+	.hsfreqrange = hsfreqrange_m3w,
+	.num_channels = 4,
+	.support_dphy = true,
+};
+
+static const struct rcar_csi2_info rcar_csi2_info_r8a77965 = {
+	.init_phtw = rcsi2_init_phtw_h3_v3h_m3n,
+	.start_receiver = rcsi2_start_receiver_gen3,
+	.enter_standby = rcsi2_enter_standby_gen3,
+	.hsfreqrange = hsfreqrange_h3_v3h_m3n,
+	.csi0clkfreqrange = 0x20,
+	.num_channels = 4,
+	.clear_ulps = true,
+	.support_dphy = true,
+};
+
+static const struct rcar_csi2_info rcar_csi2_info_r8a77970 = {
+	.init_phtw = rcsi2_init_phtw_v3m_e3,
+	.phy_post_init = rcsi2_phy_post_init_v3m_e3,
+	.start_receiver = rcsi2_start_receiver_gen3,
+	.enter_standby = rcsi2_enter_standby_gen3,
+	.num_channels = 4,
+	.support_dphy = true,
+};
+
+static const struct rcar_csi2_info rcar_csi2_info_r8a77980 = {
+	.init_phtw = rcsi2_init_phtw_h3_v3h_m3n,
+	.start_receiver = rcsi2_start_receiver_gen3,
+	.enter_standby = rcsi2_enter_standby_gen3,
+	.hsfreqrange = hsfreqrange_h3_v3h_m3n,
+	.csi0clkfreqrange = 0x20,
+	.clear_ulps = true,
+	.support_dphy = true,
+};
+
+static const struct rcar_csi2_info rcar_csi2_info_r8a77990 = {
+	.init_phtw = rcsi2_init_phtw_v3m_e3,
+	.phy_post_init = rcsi2_phy_post_init_v3m_e3,
+	.start_receiver = rcsi2_start_receiver_gen3,
+	.enter_standby = rcsi2_enter_standby_gen3,
+	.num_channels = 2,
+	.support_dphy = true,
+};
+
+static const struct rcar_csi2_info rcar_csi2_info_r8a779a0 = {
+	.init_phtw = rcsi2_init_phtw_v3u,
+	.start_receiver = rcsi2_start_receiver_gen3,
+	.enter_standby = rcsi2_enter_standby_gen3,
+	.hsfreqrange = hsfreqrange_v3u,
+	.csi0clkfreqrange = 0x20,
+	.clear_ulps = true,
+	.use_isp = true,
+	.support_dphy = true,
+};
+
+static const struct rcar_csi2_info rcar_csi2_info_r8a779g0 = {
+	.start_receiver = rcsi2_start_receiver_v4h,
+	.use_isp = true,
+	.support_cphy = true,
+};
+
+static const struct of_device_id rcar_csi2_of_table[] = {
+	{
+		.compatible = "renesas,r8a774a1-csi2",
+		.data = &rcar_csi2_info_r8a7796,
+	},
+	{
+		.compatible = "renesas,r8a774b1-csi2",
+		.data = &rcar_csi2_info_r8a77965,
+	},
+	{
+		.compatible = "renesas,r8a774c0-csi2",
+		.data = &rcar_csi2_info_r8a77990,
+	},
+	{
+		.compatible = "renesas,r8a774e1-csi2",
+		.data = &rcar_csi2_info_r8a7795,
+	},
+	{
+		.compatible = "renesas,r8a7795-csi2",
+		.data = &rcar_csi2_info_r8a7795,
+	},
+	{
+		.compatible = "renesas,r8a7796-csi2",
+		.data = &rcar_csi2_info_r8a7796,
+	},
+	{
+		.compatible = "renesas,r8a77961-csi2",
+		.data = &rcar_csi2_info_r8a77961,
+	},
+	{
+		.compatible = "renesas,r8a77965-csi2",
+		.data = &rcar_csi2_info_r8a77965,
+	},
+	{
+		.compatible = "renesas,r8a77970-csi2",
+		.data = &rcar_csi2_info_r8a77970,
+	},
+	{
+		.compatible = "renesas,r8a77980-csi2",
+		.data = &rcar_csi2_info_r8a77980,
+	},
+	{
+		.compatible = "renesas,r8a77990-csi2",
+		.data = &rcar_csi2_info_r8a77990,
+	},
+	{
+		.compatible = "renesas,r8a779a0-csi2",
+		.data = &rcar_csi2_info_r8a779a0,
+	},
+	{
+		.compatible = "renesas,r8a779g0-csi2",
+		.data = &rcar_csi2_info_r8a779g0,
+	},
+	{ /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, rcar_csi2_of_table);
+
+static const struct soc_device_attribute r8a7795[] = {
+	{
+		.soc_id = "r8a7795", .revision = "ES2.*",
+		.data = &rcar_csi2_info_r8a7795es2,
+	},
+	{ /* sentinel */ }
+};
+
+static int rcsi2_probe(struct platform_device *pdev)
+{
+	const struct soc_device_attribute *attr;
+	struct rcar_csi2 *priv;
+	unsigned int i, num_pads;
+	int ret;
+
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->info = of_device_get_match_data(&pdev->dev);
+
+	/*
+	 * The different ES versions of r8a7795 (H3) behave differently but
+	 * share the same compatible string.
+	 */
+	attr = soc_device_match(r8a7795);
+	if (attr)
+		priv->info = attr->data;
+
+	priv->dev = &pdev->dev;
+
+	mutex_init(&priv->lock);
+	priv->stream_count = 0;
+
+	ret = rcsi2_probe_resources(priv, pdev);
+	if (ret) {
+		dev_err(priv->dev, "Failed to get resources\n");
+		goto error_mutex;
+	}
+
+	platform_set_drvdata(pdev, priv);
+
+	ret = rcsi2_parse_dt(priv);
+	if (ret)
+		goto error_mutex;
+
+	priv->subdev.owner = THIS_MODULE;
+	priv->subdev.dev = &pdev->dev;
+	v4l2_subdev_init(&priv->subdev, &rcar_csi2_subdev_ops);
+	v4l2_set_subdevdata(&priv->subdev, &pdev->dev);
+	snprintf(priv->subdev.name, V4L2_SUBDEV_NAME_SIZE, "%s %s",
+		 KBUILD_MODNAME, dev_name(&pdev->dev));
+	priv->subdev.flags = V4L2_SUBDEV_FL_HAS_DEVNODE;
+
+	priv->subdev.entity.function = MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER;
+	priv->subdev.entity.ops = &rcar_csi2_entity_ops;
+
+	num_pads = priv->info->use_isp ? 2 : NR_OF_RCAR_CSI2_PAD;
+
+	priv->pads[RCAR_CSI2_SINK].flags = MEDIA_PAD_FL_SINK;
+	for (i = RCAR_CSI2_SOURCE_VC0; i < num_pads; i++)
+		priv->pads[i].flags = MEDIA_PAD_FL_SOURCE;
+
+	ret = media_entity_pads_init(&priv->subdev.entity, num_pads,
+				     priv->pads);
+	if (ret)
+		goto error_async;
+
+	for (i = 0; i < ARRAY_SIZE(priv->channel_vc); i++)
+		priv->channel_vc[i] = -1;
+
+	pm_runtime_enable(&pdev->dev);
+
+	ret = v4l2_async_register_subdev(&priv->subdev);
+	if (ret < 0)
+		goto error_async;
+
+	dev_info(priv->dev, "%d lanes found\n", priv->lanes);
+
+	return 0;
+
+error_async:
+	v4l2_async_nf_unregister(&priv->notifier);
+	v4l2_async_nf_cleanup(&priv->notifier);
+error_mutex:
+	mutex_destroy(&priv->lock);
+
+	return ret;
+}
+
+static void rcsi2_remove(struct platform_device *pdev)
+{
+	struct rcar_csi2 *priv = platform_get_drvdata(pdev);
+
+	v4l2_async_nf_unregister(&priv->notifier);
+	v4l2_async_nf_cleanup(&priv->notifier);
+	v4l2_async_unregister_subdev(&priv->subdev);
+
+	pm_runtime_disable(&pdev->dev);
+
+	mutex_destroy(&priv->lock);
+}
+
+static struct platform_driver rcar_csi2_pdrv = {
+	.remove_new = rcsi2_remove,
+	.probe	= rcsi2_probe,
+	.driver	= {
+		.name	= "rcar-csi2",
+		.suppress_bind_attrs = true,
+		.of_match_table	= rcar_csi2_of_table,
+	},
+};
+
+module_platform_driver(rcar_csi2_pdrv);
+
+MODULE_AUTHOR("Niklas Söderlund <niklas.soderlund@ragnatech.se>");
+MODULE_DESCRIPTION("Renesas R-Car MIPI CSI-2 receiver driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/platform/renesas/rcar-vin/rcar-dma.c b/drivers/media/platform/renesas/rcar-vin/rcar-dma.c
new file mode 100644
index 000000000..2a77353f1
--- /dev/null
+++ b/drivers/media/platform/renesas/rcar-vin/rcar-dma.c
@@ -0,0 +1,1672 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Driver for Renesas R-Car VIN
+ *
+ * Copyright (C) 2016 Renesas Electronics Corp.
+ * Copyright (C) 2011-2013 Renesas Solutions Corp.
+ * Copyright (C) 2013 Cogent Embedded, Inc., <source@cogentembedded.com>
+ * Copyright (C) 2008 Magnus Damm
+ *
+ * Based on the soc-camera rcar_vin driver
+ */
+
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/pm_runtime.h>
+
+#include <media/videobuf2-dma-contig.h>
+
+#include "rcar-vin.h"
+
+/* -----------------------------------------------------------------------------
+ * HW Functions
+ */
+
+/* Register offsets for R-Car VIN */
+#define VNMC_REG	0x00	/* Video n Main Control Register */
+#define VNMS_REG	0x04	/* Video n Module Status Register */
+#define VNFC_REG	0x08	/* Video n Frame Capture Register */
+#define VNSLPRC_REG	0x0C	/* Video n Start Line Pre-Clip Register */
+#define VNELPRC_REG	0x10	/* Video n End Line Pre-Clip Register */
+#define VNSPPRC_REG	0x14	/* Video n Start Pixel Pre-Clip Register */
+#define VNEPPRC_REG	0x18	/* Video n End Pixel Pre-Clip Register */
+#define VNIS_REG	0x2C	/* Video n Image Stride Register */
+#define VNMB_REG(m)	(0x30 + ((m) << 2)) /* Video n Memory Base m Register */
+#define VNIE_REG	0x40	/* Video n Interrupt Enable Register */
+#define VNINTS_REG	0x44	/* Video n Interrupt Status Register */
+#define VNSI_REG	0x48	/* Video n Scanline Interrupt Register */
+#define VNMTC_REG	0x4C	/* Video n Memory Transfer Control Register */
+#define VNDMR_REG	0x58	/* Video n Data Mode Register */
+#define VNDMR2_REG	0x5C	/* Video n Data Mode Register 2 */
+#define VNUVAOF_REG	0x60	/* Video n UV Address Offset Register */
+
+/* Register offsets specific for Gen2 */
+#define VNSLPOC_REG	0x1C	/* Video n Start Line Post-Clip Register */
+#define VNELPOC_REG	0x20	/* Video n End Line Post-Clip Register */
+#define VNSPPOC_REG	0x24	/* Video n Start Pixel Post-Clip Register */
+#define VNEPPOC_REG	0x28	/* Video n End Pixel Post-Clip Register */
+#define VNYS_REG	0x50	/* Video n Y Scale Register */
+#define VNXS_REG	0x54	/* Video n X Scale Register */
+#define VNC1A_REG	0x80	/* Video n Coefficient Set C1A Register */
+#define VNC1B_REG	0x84	/* Video n Coefficient Set C1B Register */
+#define VNC1C_REG	0x88	/* Video n Coefficient Set C1C Register */
+#define VNC2A_REG	0x90	/* Video n Coefficient Set C2A Register */
+#define VNC2B_REG	0x94	/* Video n Coefficient Set C2B Register */
+#define VNC2C_REG	0x98	/* Video n Coefficient Set C2C Register */
+#define VNC3A_REG	0xA0	/* Video n Coefficient Set C3A Register */
+#define VNC3B_REG	0xA4	/* Video n Coefficient Set C3B Register */
+#define VNC3C_REG	0xA8	/* Video n Coefficient Set C3C Register */
+#define VNC4A_REG	0xB0	/* Video n Coefficient Set C4A Register */
+#define VNC4B_REG	0xB4	/* Video n Coefficient Set C4B Register */
+#define VNC4C_REG	0xB8	/* Video n Coefficient Set C4C Register */
+#define VNC5A_REG	0xC0	/* Video n Coefficient Set C5A Register */
+#define VNC5B_REG	0xC4	/* Video n Coefficient Set C5B Register */
+#define VNC5C_REG	0xC8	/* Video n Coefficient Set C5C Register */
+#define VNC6A_REG	0xD0	/* Video n Coefficient Set C6A Register */
+#define VNC6B_REG	0xD4	/* Video n Coefficient Set C6B Register */
+#define VNC6C_REG	0xD8	/* Video n Coefficient Set C6C Register */
+#define VNC7A_REG	0xE0	/* Video n Coefficient Set C7A Register */
+#define VNC7B_REG	0xE4	/* Video n Coefficient Set C7B Register */
+#define VNC7C_REG	0xE8	/* Video n Coefficient Set C7C Register */
+#define VNC8A_REG	0xF0	/* Video n Coefficient Set C8A Register */
+#define VNC8B_REG	0xF4	/* Video n Coefficient Set C8B Register */
+#define VNC8C_REG	0xF8	/* Video n Coefficient Set C8C Register */
+
+/* Register offsets specific for Gen3 */
+#define VNCSI_IFMD_REG		0x20 /* Video n CSI2 Interface Mode Register */
+#define VNUDS_CTRL_REG		0x80 /* Video n scaling control register */
+#define VNUDS_SCALE_REG		0x84 /* Video n scaling factor register */
+#define VNUDS_PASS_BWIDTH_REG	0x90 /* Video n passband register */
+#define VNUDS_CLIP_SIZE_REG	0xa4 /* Video n UDS output size clipping reg */
+
+/* Register bit fields for R-Car VIN */
+/* Video n Main Control Register bits */
+#define VNMC_INF_MASK		(7 << 16)
+#define VNMC_DPINE		(1 << 27) /* Gen3 specific */
+#define VNMC_SCLE		(1 << 26) /* Gen3 specific */
+#define VNMC_FOC		(1 << 21)
+#define VNMC_YCAL		(1 << 19)
+#define VNMC_INF_YUV8_BT656	(0 << 16)
+#define VNMC_INF_YUV8_BT601	(1 << 16)
+#define VNMC_INF_YUV10_BT656	(2 << 16)
+#define VNMC_INF_YUV10_BT601	(3 << 16)
+#define VNMC_INF_RAW8		(4 << 16)
+#define VNMC_INF_YUV16		(5 << 16)
+#define VNMC_INF_RGB888		(6 << 16)
+#define VNMC_INF_RGB666		(7 << 16)
+#define VNMC_VUP		(1 << 10)
+#define VNMC_IM_ODD		(0 << 3)
+#define VNMC_IM_ODD_EVEN	(1 << 3)
+#define VNMC_IM_EVEN		(2 << 3)
+#define VNMC_IM_FULL		(3 << 3)
+#define VNMC_BPS		(1 << 1)
+#define VNMC_ME			(1 << 0)
+
+/* Video n Module Status Register bits */
+#define VNMS_FBS_MASK		(3 << 3)
+#define VNMS_FBS_SHIFT		3
+#define VNMS_FS			(1 << 2)
+#define VNMS_AV			(1 << 1)
+#define VNMS_CA			(1 << 0)
+
+/* Video n Frame Capture Register bits */
+#define VNFC_C_FRAME		(1 << 1)
+#define VNFC_S_FRAME		(1 << 0)
+
+/* Video n Interrupt Enable Register bits */
+#define VNIE_FIE		(1 << 4)
+#define VNIE_EFE		(1 << 1)
+
+/* Video n Interrupt Status Register bits */
+#define VNINTS_FIS		(1 << 4)
+
+/* Video n Data Mode Register bits */
+#define VNDMR_A8BIT(n)		(((n) & 0xff) << 24)
+#define VNDMR_A8BIT_MASK	(0xff << 24)
+#define VNDMR_YMODE_Y8		(1 << 12)
+#define VNDMR_EXRGB		(1 << 8)
+#define VNDMR_BPSM		(1 << 4)
+#define VNDMR_ABIT		(1 << 2)
+#define VNDMR_DTMD_YCSEP	(1 << 1)
+#define VNDMR_DTMD_ARGB		(1 << 0)
+#define VNDMR_DTMD_YCSEP_420	(3 << 0)
+
+/* Video n Data Mode Register 2 bits */
+#define VNDMR2_VPS		(1 << 30)
+#define VNDMR2_HPS		(1 << 29)
+#define VNDMR2_CES		(1 << 28)
+#define VNDMR2_YDS		(1 << 22)
+#define VNDMR2_FTEV		(1 << 17)
+#define VNDMR2_VLV(n)		((n & 0xf) << 12)
+
+/* Video n CSI2 Interface Mode Register (Gen3) */
+#define VNCSI_IFMD_DES1		(1 << 26)
+#define VNCSI_IFMD_DES0		(1 << 25)
+#define VNCSI_IFMD_CSI_CHSEL(n) (((n) & 0xf) << 0)
+
+/* Video n scaling control register (Gen3) */
+#define VNUDS_CTRL_AMD		(1 << 30)
+
+struct rvin_buffer {
+	struct vb2_v4l2_buffer vb;
+	struct list_head list;
+};
+
+#define to_buf_list(vb2_buffer) (&container_of(vb2_buffer, \
+					       struct rvin_buffer, \
+					       vb)->list)
+
+static void rvin_write(struct rvin_dev *vin, u32 value, u32 offset)
+{
+	iowrite32(value, vin->base + offset);
+}
+
+static u32 rvin_read(struct rvin_dev *vin, u32 offset)
+{
+	return ioread32(vin->base + offset);
+}
+
+/* -----------------------------------------------------------------------------
+ * Crop and Scaling
+ */
+
+static bool rvin_scaler_needed(const struct rvin_dev *vin)
+{
+	return !(vin->crop.width == vin->format.width &&
+		 vin->compose.width == vin->format.width &&
+		 vin->crop.height == vin->format.height &&
+		 vin->compose.height == vin->format.height);
+}
+
+struct vin_coeff {
+	unsigned short xs_value;
+	u32 coeff_set[24];
+};
+
+static const struct vin_coeff vin_coeff_set[] = {
+	{ 0x0000, {
+			  0x00000000, 0x00000000, 0x00000000,
+			  0x00000000, 0x00000000, 0x00000000,
+			  0x00000000, 0x00000000, 0x00000000,
+			  0x00000000, 0x00000000, 0x00000000,
+			  0x00000000, 0x00000000, 0x00000000,
+			  0x00000000, 0x00000000, 0x00000000,
+			  0x00000000, 0x00000000, 0x00000000,
+			  0x00000000, 0x00000000, 0x00000000 },
+	},
+	{ 0x1000, {
+			  0x000fa400, 0x000fa400, 0x09625902,
+			  0x000003f8, 0x00000403, 0x3de0d9f0,
+			  0x001fffed, 0x00000804, 0x3cc1f9c3,
+			  0x001003de, 0x00000c01, 0x3cb34d7f,
+			  0x002003d2, 0x00000c00, 0x3d24a92d,
+			  0x00200bca, 0x00000bff, 0x3df600d2,
+			  0x002013cc, 0x000007ff, 0x3ed70c7e,
+			  0x00100fde, 0x00000000, 0x3f87c036 },
+	},
+	{ 0x1200, {
+			  0x002ffff1, 0x002ffff1, 0x02a0a9c8,
+			  0x002003e7, 0x001ffffa, 0x000185bc,
+			  0x002007dc, 0x000003ff, 0x3e52859c,
+			  0x00200bd4, 0x00000002, 0x3d53996b,
+			  0x00100fd0, 0x00000403, 0x3d04ad2d,
+			  0x00000bd5, 0x00000403, 0x3d35ace7,
+			  0x3ff003e4, 0x00000801, 0x3dc674a1,
+			  0x3fffe800, 0x00000800, 0x3e76f461 },
+	},
+	{ 0x1400, {
+			  0x00100be3, 0x00100be3, 0x04d1359a,
+			  0x00000fdb, 0x002003ed, 0x0211fd93,
+			  0x00000fd6, 0x002003f4, 0x0002d97b,
+			  0x000007d6, 0x002ffffb, 0x3e93b956,
+			  0x3ff003da, 0x001003ff, 0x3db49926,
+			  0x3fffefe9, 0x00100001, 0x3d655cee,
+			  0x3fffd400, 0x00000003, 0x3d65f4b6,
+			  0x000fb421, 0x00000402, 0x3dc6547e },
+	},
+	{ 0x1600, {
+			  0x00000bdd, 0x00000bdd, 0x06519578,
+			  0x3ff007da, 0x00000be3, 0x03c24973,
+			  0x3ff003d9, 0x00000be9, 0x01b30d5f,
+			  0x3ffff7df, 0x001003f1, 0x0003c542,
+			  0x000fdfec, 0x001003f7, 0x3ec4711d,
+			  0x000fc400, 0x002ffffd, 0x3df504f1,
+			  0x001fa81a, 0x002ffc00, 0x3d957cc2,
+			  0x002f8c3c, 0x00100000, 0x3db5c891 },
+	},
+	{ 0x1800, {
+			  0x3ff003dc, 0x3ff003dc, 0x0791e558,
+			  0x000ff7dd, 0x3ff007de, 0x05328554,
+			  0x000fe7e3, 0x3ff00be2, 0x03232546,
+			  0x000fd7ee, 0x000007e9, 0x0143bd30,
+			  0x001fb800, 0x000007ee, 0x00044511,
+			  0x002fa015, 0x000007f4, 0x3ef4bcee,
+			  0x002f8832, 0x001003f9, 0x3e4514c7,
+			  0x001f7853, 0x001003fd, 0x3de54c9f },
+	},
+	{ 0x1a00, {
+			  0x000fefe0, 0x000fefe0, 0x08721d3c,
+			  0x001fdbe7, 0x000ffbde, 0x0652a139,
+			  0x001fcbf0, 0x000003df, 0x0463292e,
+			  0x002fb3ff, 0x3ff007e3, 0x0293a91d,
+			  0x002f9c12, 0x3ff00be7, 0x01241905,
+			  0x001f8c29, 0x000007ed, 0x3fe470eb,
+			  0x000f7c46, 0x000007f2, 0x3f04b8ca,
+			  0x3fef7865, 0x000007f6, 0x3e74e4a8 },
+	},
+	{ 0x1c00, {
+			  0x001fd3e9, 0x001fd3e9, 0x08f23d26,
+			  0x002fbff3, 0x001fe3e4, 0x0712ad23,
+			  0x002fa800, 0x000ff3e0, 0x05631d1b,
+			  0x001f9810, 0x000ffbe1, 0x03b3890d,
+			  0x000f8c23, 0x000003e3, 0x0233e8fa,
+			  0x3fef843b, 0x000003e7, 0x00f430e4,
+			  0x3fbf8456, 0x3ff00bea, 0x00046cc8,
+			  0x3f8f8c72, 0x3ff00bef, 0x3f3490ac },
+	},
+	{ 0x1e00, {
+			  0x001fbbf4, 0x001fbbf4, 0x09425112,
+			  0x001fa800, 0x002fc7ed, 0x0792b110,
+			  0x000f980e, 0x001fdbe6, 0x0613110a,
+			  0x3fff8c20, 0x001fe7e3, 0x04a368fd,
+			  0x3fcf8c33, 0x000ff7e2, 0x0343b8ed,
+			  0x3f9f8c4a, 0x000fffe3, 0x0203f8da,
+			  0x3f5f9c61, 0x000003e6, 0x00e428c5,
+			  0x3f1fb07b, 0x000003eb, 0x3fe440af },
+	},
+	{ 0x2000, {
+			  0x000fa400, 0x000fa400, 0x09625902,
+			  0x3fff980c, 0x001fb7f5, 0x0812b0ff,
+			  0x3fdf901c, 0x001fc7ed, 0x06b2fcfa,
+			  0x3faf902d, 0x001fd3e8, 0x055348f1,
+			  0x3f7f983f, 0x001fe3e5, 0x04038ce3,
+			  0x3f3fa454, 0x001fefe3, 0x02e3c8d1,
+			  0x3f0fb86a, 0x001ff7e4, 0x01c3e8c0,
+			  0x3ecfd880, 0x000fffe6, 0x00c404ac },
+	},
+	{ 0x2200, {
+			  0x3fdf9c0b, 0x3fdf9c0b, 0x09725cf4,
+			  0x3fbf9818, 0x3fffa400, 0x0842a8f1,
+			  0x3f8f9827, 0x000fb3f7, 0x0702f0ec,
+			  0x3f5fa037, 0x000fc3ef, 0x05d330e4,
+			  0x3f2fac49, 0x001fcfea, 0x04a364d9,
+			  0x3effc05c, 0x001fdbe7, 0x038394ca,
+			  0x3ecfdc6f, 0x001fe7e6, 0x0273b0bb,
+			  0x3ea00083, 0x001fefe6, 0x0183c0a9 },
+	},
+	{ 0x2400, {
+			  0x3f9fa014, 0x3f9fa014, 0x098260e6,
+			  0x3f7f9c23, 0x3fcf9c0a, 0x08629ce5,
+			  0x3f4fa431, 0x3fefa400, 0x0742d8e1,
+			  0x3f1fb440, 0x3fffb3f8, 0x062310d9,
+			  0x3eefc850, 0x000fbbf2, 0x050340d0,
+			  0x3ecfe062, 0x000fcbec, 0x041364c2,
+			  0x3ea00073, 0x001fd3ea, 0x03037cb5,
+			  0x3e902086, 0x001fdfe8, 0x022388a5 },
+	},
+	{ 0x2600, {
+			  0x3f5fa81e, 0x3f5fa81e, 0x096258da,
+			  0x3f3fac2b, 0x3f8fa412, 0x088290d8,
+			  0x3f0fbc38, 0x3fafa408, 0x0772c8d5,
+			  0x3eefcc47, 0x3fcfa800, 0x0672f4ce,
+			  0x3ecfe456, 0x3fefaffa, 0x05531cc6,
+			  0x3eb00066, 0x3fffbbf3, 0x047334bb,
+			  0x3ea01c77, 0x000fc7ee, 0x039348ae,
+			  0x3ea04486, 0x000fd3eb, 0x02b350a1 },
+	},
+	{ 0x2800, {
+			  0x3f2fb426, 0x3f2fb426, 0x094250ce,
+			  0x3f0fc032, 0x3f4fac1b, 0x086284cd,
+			  0x3eefd040, 0x3f7fa811, 0x0782acc9,
+			  0x3ecfe84c, 0x3f9fa807, 0x06a2d8c4,
+			  0x3eb0005b, 0x3fbfac00, 0x05b2f4bc,
+			  0x3eb0186a, 0x3fdfb3fa, 0x04c308b4,
+			  0x3eb04077, 0x3fefbbf4, 0x03f31ca8,
+			  0x3ec06884, 0x000fbff2, 0x03031c9e },
+	},
+	{ 0x2a00, {
+			  0x3f0fc42d, 0x3f0fc42d, 0x090240c4,
+			  0x3eefd439, 0x3f2fb822, 0x08526cc2,
+			  0x3edfe845, 0x3f4fb018, 0x078294bf,
+			  0x3ec00051, 0x3f6fac0f, 0x06b2b4bb,
+			  0x3ec0185f, 0x3f8fac07, 0x05e2ccb4,
+			  0x3ec0386b, 0x3fafac00, 0x0502e8ac,
+			  0x3ed05c77, 0x3fcfb3fb, 0x0432f0a3,
+			  0x3ef08482, 0x3fdfbbf6, 0x0372f898 },
+	},
+	{ 0x2c00, {
+			  0x3eefdc31, 0x3eefdc31, 0x08e238b8,
+			  0x3edfec3d, 0x3f0fc828, 0x082258b9,
+			  0x3ed00049, 0x3f1fc01e, 0x077278b6,
+			  0x3ed01455, 0x3f3fb815, 0x06c294b2,
+			  0x3ed03460, 0x3f5fb40d, 0x0602acac,
+			  0x3ef0506c, 0x3f7fb006, 0x0542c0a4,
+			  0x3f107476, 0x3f9fb400, 0x0472c89d,
+			  0x3f309c80, 0x3fbfb7fc, 0x03b2cc94 },
+	},
+	{ 0x2e00, {
+			  0x3eefec37, 0x3eefec37, 0x088220b0,
+			  0x3ee00041, 0x3effdc2d, 0x07f244ae,
+			  0x3ee0144c, 0x3f0fd023, 0x07625cad,
+			  0x3ef02c57, 0x3f1fc81a, 0x06c274a9,
+			  0x3f004861, 0x3f3fbc13, 0x060288a6,
+			  0x3f20686b, 0x3f5fb80c, 0x05529c9e,
+			  0x3f408c74, 0x3f6fb805, 0x04b2ac96,
+			  0x3f80ac7e, 0x3f8fb800, 0x0402ac8e },
+	},
+	{ 0x3000, {
+			  0x3ef0003a, 0x3ef0003a, 0x084210a6,
+			  0x3ef01045, 0x3effec32, 0x07b228a7,
+			  0x3f00284e, 0x3f0fdc29, 0x073244a4,
+			  0x3f104058, 0x3f0fd420, 0x06a258a2,
+			  0x3f305c62, 0x3f2fc818, 0x0612689d,
+			  0x3f508069, 0x3f3fc011, 0x05728496,
+			  0x3f80a072, 0x3f4fc00a, 0x04d28c90,
+			  0x3fc0c07b, 0x3f6fbc04, 0x04429088 },
+	},
+	{ 0x3200, {
+			  0x3f00103e, 0x3f00103e, 0x07f1fc9e,
+			  0x3f102447, 0x3f000035, 0x0782149d,
+			  0x3f203c4f, 0x3f0ff02c, 0x07122c9c,
+			  0x3f405458, 0x3f0fe424, 0x06924099,
+			  0x3f607061, 0x3f1fd41d, 0x06024c97,
+			  0x3f909068, 0x3f2fcc16, 0x05726490,
+			  0x3fc0b070, 0x3f3fc80f, 0x04f26c8a,
+			  0x0000d077, 0x3f4fc409, 0x04627484 },
+	},
+	{ 0x3400, {
+			  0x3f202040, 0x3f202040, 0x07a1e898,
+			  0x3f303449, 0x3f100c38, 0x0741fc98,
+			  0x3f504c50, 0x3f10002f, 0x06e21495,
+			  0x3f706459, 0x3f1ff028, 0x06722492,
+			  0x3fa08060, 0x3f1fe421, 0x05f2348f,
+			  0x3fd09c67, 0x3f1fdc19, 0x05824c89,
+			  0x0000bc6e, 0x3f2fd014, 0x04f25086,
+			  0x0040dc74, 0x3f3fcc0d, 0x04825c7f },
+	},
+	{ 0x3600, {
+			  0x3f403042, 0x3f403042, 0x0761d890,
+			  0x3f504848, 0x3f301c3b, 0x0701f090,
+			  0x3f805c50, 0x3f200c33, 0x06a2008f,
+			  0x3fa07458, 0x3f10002b, 0x06520c8d,
+			  0x3fd0905e, 0x3f1ff424, 0x05e22089,
+			  0x0000ac65, 0x3f1fe81d, 0x05823483,
+			  0x0030cc6a, 0x3f2fdc18, 0x04f23c81,
+			  0x0080e871, 0x3f2fd412, 0x0482407c },
+	},
+	{ 0x3800, {
+			  0x3f604043, 0x3f604043, 0x0721c88a,
+			  0x3f80544a, 0x3f502c3c, 0x06d1d88a,
+			  0x3fb06851, 0x3f301c35, 0x0681e889,
+			  0x3fd08456, 0x3f30082f, 0x0611fc88,
+			  0x00009c5d, 0x3f200027, 0x05d20884,
+			  0x0030b863, 0x3f2ff421, 0x05621880,
+			  0x0070d468, 0x3f2fe81b, 0x0502247c,
+			  0x00c0ec6f, 0x3f2fe015, 0x04a22877 },
+	},
+	{ 0x3a00, {
+			  0x3f904c44, 0x3f904c44, 0x06e1b884,
+			  0x3fb0604a, 0x3f70383e, 0x0691c885,
+			  0x3fe07451, 0x3f502c36, 0x0661d483,
+			  0x00009055, 0x3f401831, 0x0601ec81,
+			  0x0030a85b, 0x3f300c2a, 0x05b1f480,
+			  0x0070c061, 0x3f300024, 0x0562047a,
+			  0x00b0d867, 0x3f3ff41e, 0x05020c77,
+			  0x00f0f46b, 0x3f2fec19, 0x04a21474 },
+	},
+	{ 0x3c00, {
+			  0x3fb05c43, 0x3fb05c43, 0x06c1b07e,
+			  0x3fe06c4b, 0x3f902c3f, 0x0681c081,
+			  0x0000844f, 0x3f703838, 0x0631cc7d,
+			  0x00309855, 0x3f602433, 0x05d1d47e,
+			  0x0060b459, 0x3f50142e, 0x0581e47b,
+			  0x00a0c85f, 0x3f400828, 0x0531f078,
+			  0x00e0e064, 0x3f300021, 0x0501fc73,
+			  0x00b0fc6a, 0x3f3ff41d, 0x04a20873 },
+	},
+	{ 0x3e00, {
+			  0x3fe06444, 0x3fe06444, 0x0681a07a,
+			  0x00007849, 0x3fc0503f, 0x0641b07a,
+			  0x0020904d, 0x3fa0403a, 0x05f1c07a,
+			  0x0060a453, 0x3f803034, 0x05c1c878,
+			  0x0090b858, 0x3f70202f, 0x0571d477,
+			  0x00d0d05d, 0x3f501829, 0x0531e073,
+			  0x0110e462, 0x3f500825, 0x04e1e471,
+			  0x01510065, 0x3f40001f, 0x04a1f06d },
+	},
+	{ 0x4000, {
+			  0x00007044, 0x00007044, 0x06519476,
+			  0x00208448, 0x3fe05c3f, 0x0621a476,
+			  0x0050984d, 0x3fc04c3a, 0x05e1b075,
+			  0x0080ac52, 0x3fa03c35, 0x05a1b875,
+			  0x00c0c056, 0x3f803030, 0x0561c473,
+			  0x0100d45b, 0x3f70202b, 0x0521d46f,
+			  0x0140e860, 0x3f601427, 0x04d1d46e,
+			  0x01810064, 0x3f500822, 0x0491dc6b },
+	},
+	{ 0x5000, {
+			  0x0110a442, 0x0110a442, 0x0551545e,
+			  0x0140b045, 0x00e0983f, 0x0531585f,
+			  0x0160c047, 0x00c08c3c, 0x0511645e,
+			  0x0190cc4a, 0x00908039, 0x04f1685f,
+			  0x01c0dc4c, 0x00707436, 0x04d1705e,
+			  0x0200e850, 0x00506833, 0x04b1785b,
+			  0x0230f453, 0x00305c30, 0x0491805a,
+			  0x02710056, 0x0010542d, 0x04718059 },
+	},
+	{ 0x6000, {
+			  0x01c0bc40, 0x01c0bc40, 0x04c13052,
+			  0x01e0c841, 0x01a0b43d, 0x04c13851,
+			  0x0210cc44, 0x0180a83c, 0x04a13453,
+			  0x0230d845, 0x0160a03a, 0x04913c52,
+			  0x0260e047, 0x01409838, 0x04714052,
+			  0x0280ec49, 0x01208c37, 0x04514c50,
+			  0x02b0f44b, 0x01008435, 0x04414c50,
+			  0x02d1004c, 0x00e07c33, 0x0431544f },
+	},
+	{ 0x7000, {
+			  0x0230c83e, 0x0230c83e, 0x04711c4c,
+			  0x0250d03f, 0x0210c43c, 0x0471204b,
+			  0x0270d840, 0x0200b83c, 0x0451244b,
+			  0x0290dc42, 0x01e0b43a, 0x0441244c,
+			  0x02b0e443, 0x01c0b038, 0x0441284b,
+			  0x02d0ec44, 0x01b0a438, 0x0421304a,
+			  0x02f0f445, 0x0190a036, 0x04213449,
+			  0x0310f847, 0x01709c34, 0x04213848 },
+	},
+	{ 0x8000, {
+			  0x0280d03d, 0x0280d03d, 0x04310c48,
+			  0x02a0d43e, 0x0270c83c, 0x04311047,
+			  0x02b0dc3e, 0x0250c83a, 0x04311447,
+			  0x02d0e040, 0x0240c03a, 0x04211446,
+			  0x02e0e840, 0x0220bc39, 0x04111847,
+			  0x0300e842, 0x0210b438, 0x04012445,
+			  0x0310f043, 0x0200b037, 0x04012045,
+			  0x0330f444, 0x01e0ac36, 0x03f12445 },
+	},
+	{ 0xefff, {
+			  0x0340dc3a, 0x0340dc3a, 0x03b0ec40,
+			  0x0340e03a, 0x0330e039, 0x03c0f03e,
+			  0x0350e03b, 0x0330dc39, 0x03c0ec3e,
+			  0x0350e43a, 0x0320dc38, 0x03c0f43e,
+			  0x0360e43b, 0x0320d839, 0x03b0f03e,
+			  0x0360e83b, 0x0310d838, 0x03c0fc3b,
+			  0x0370e83b, 0x0310d439, 0x03a0f83d,
+			  0x0370e83c, 0x0300d438, 0x03b0fc3c },
+	}
+};
+
+static void rvin_set_coeff(struct rvin_dev *vin, unsigned short xs)
+{
+	int i;
+	const struct vin_coeff *p_prev_set = NULL;
+	const struct vin_coeff *p_set = NULL;
+
+	/* Look for suitable coefficient values */
+	for (i = 0; i < ARRAY_SIZE(vin_coeff_set); i++) {
+		p_prev_set = p_set;
+		p_set = &vin_coeff_set[i];
+
+		if (xs < p_set->xs_value)
+			break;
+	}
+
+	/* Use previous value if its XS value is closer */
+	if (p_prev_set &&
+	    xs - p_prev_set->xs_value < p_set->xs_value - xs)
+		p_set = p_prev_set;
+
+	/* Set coefficient registers */
+	rvin_write(vin, p_set->coeff_set[0], VNC1A_REG);
+	rvin_write(vin, p_set->coeff_set[1], VNC1B_REG);
+	rvin_write(vin, p_set->coeff_set[2], VNC1C_REG);
+
+	rvin_write(vin, p_set->coeff_set[3], VNC2A_REG);
+	rvin_write(vin, p_set->coeff_set[4], VNC2B_REG);
+	rvin_write(vin, p_set->coeff_set[5], VNC2C_REG);
+
+	rvin_write(vin, p_set->coeff_set[6], VNC3A_REG);
+	rvin_write(vin, p_set->coeff_set[7], VNC3B_REG);
+	rvin_write(vin, p_set->coeff_set[8], VNC3C_REG);
+
+	rvin_write(vin, p_set->coeff_set[9], VNC4A_REG);
+	rvin_write(vin, p_set->coeff_set[10], VNC4B_REG);
+	rvin_write(vin, p_set->coeff_set[11], VNC4C_REG);
+
+	rvin_write(vin, p_set->coeff_set[12], VNC5A_REG);
+	rvin_write(vin, p_set->coeff_set[13], VNC5B_REG);
+	rvin_write(vin, p_set->coeff_set[14], VNC5C_REG);
+
+	rvin_write(vin, p_set->coeff_set[15], VNC6A_REG);
+	rvin_write(vin, p_set->coeff_set[16], VNC6B_REG);
+	rvin_write(vin, p_set->coeff_set[17], VNC6C_REG);
+
+	rvin_write(vin, p_set->coeff_set[18], VNC7A_REG);
+	rvin_write(vin, p_set->coeff_set[19], VNC7B_REG);
+	rvin_write(vin, p_set->coeff_set[20], VNC7C_REG);
+
+	rvin_write(vin, p_set->coeff_set[21], VNC8A_REG);
+	rvin_write(vin, p_set->coeff_set[22], VNC8B_REG);
+	rvin_write(vin, p_set->coeff_set[23], VNC8C_REG);
+}
+
+void rvin_scaler_gen2(struct rvin_dev *vin)
+{
+	unsigned int crop_height;
+	u32 xs, ys;
+
+	/* Set scaling coefficient */
+	crop_height = vin->crop.height;
+	if (V4L2_FIELD_HAS_BOTH(vin->format.field))
+		crop_height *= 2;
+
+	ys = 0;
+	if (crop_height != vin->compose.height)
+		ys = (4096 * crop_height) / vin->compose.height;
+	rvin_write(vin, ys, VNYS_REG);
+
+	xs = 0;
+	if (vin->crop.width != vin->compose.width)
+		xs = (4096 * vin->crop.width) / vin->compose.width;
+
+	/* Horizontal upscaling is up to double size */
+	if (xs > 0 && xs < 2048)
+		xs = 2048;
+
+	rvin_write(vin, xs, VNXS_REG);
+
+	/* Horizontal upscaling is done out by scaling down from double size */
+	if (xs < 4096)
+		xs *= 2;
+
+	rvin_set_coeff(vin, xs);
+
+	/* Set Start/End Pixel/Line Post-Clip */
+	rvin_write(vin, 0, VNSPPOC_REG);
+	rvin_write(vin, 0, VNSLPOC_REG);
+	rvin_write(vin, vin->format.width - 1, VNEPPOC_REG);
+
+	if (V4L2_FIELD_HAS_BOTH(vin->format.field))
+		rvin_write(vin, vin->format.height / 2 - 1, VNELPOC_REG);
+	else
+		rvin_write(vin, vin->format.height - 1, VNELPOC_REG);
+
+	vin_dbg(vin,
+		"Pre-Clip: %ux%u@%u:%u YS: %d XS: %d Post-Clip: %ux%u@%u:%u\n",
+		vin->crop.width, vin->crop.height, vin->crop.left,
+		vin->crop.top, ys, xs, vin->format.width, vin->format.height,
+		0, 0);
+}
+
+static unsigned int rvin_uds_scale_ratio(unsigned int in, unsigned int out)
+{
+	unsigned int ratio;
+
+	ratio = in * 4096 / out;
+	return ratio >= 0x10000 ? 0xffff : ratio;
+}
+
+static unsigned int rvin_uds_filter_width(unsigned int ratio)
+{
+	if (ratio >= 0x1000)
+		return 64 * (ratio & 0xf000) / ratio;
+
+	return 64;
+}
+
+void rvin_scaler_gen3(struct rvin_dev *vin)
+{
+	unsigned int ratio_h, ratio_v;
+	unsigned int bwidth_h, bwidth_v;
+	u32 vnmc, clip_size;
+
+	vnmc = rvin_read(vin, VNMC_REG);
+
+	/* Disable scaler if not needed. */
+	if (!rvin_scaler_needed(vin)) {
+		rvin_write(vin, vnmc & ~VNMC_SCLE, VNMC_REG);
+		return;
+	}
+
+	ratio_h = rvin_uds_scale_ratio(vin->crop.width, vin->compose.width);
+	bwidth_h = rvin_uds_filter_width(ratio_h);
+
+	ratio_v = rvin_uds_scale_ratio(vin->crop.height, vin->compose.height);
+	bwidth_v = rvin_uds_filter_width(ratio_v);
+
+	clip_size = vin->compose.width << 16;
+
+	switch (vin->format.field) {
+	case V4L2_FIELD_INTERLACED_TB:
+	case V4L2_FIELD_INTERLACED_BT:
+	case V4L2_FIELD_INTERLACED:
+	case V4L2_FIELD_SEQ_TB:
+	case V4L2_FIELD_SEQ_BT:
+		clip_size |= vin->compose.height / 2;
+		break;
+	default:
+		clip_size |= vin->compose.height;
+		break;
+	}
+
+	rvin_write(vin, vnmc | VNMC_SCLE, VNMC_REG);
+	rvin_write(vin, VNUDS_CTRL_AMD, VNUDS_CTRL_REG);
+	rvin_write(vin, (ratio_h << 16) | ratio_v, VNUDS_SCALE_REG);
+	rvin_write(vin, (bwidth_h << 16) | bwidth_v, VNUDS_PASS_BWIDTH_REG);
+	rvin_write(vin, clip_size, VNUDS_CLIP_SIZE_REG);
+
+	vin_dbg(vin, "Pre-Clip: %ux%u@%u:%u Post-Clip: %ux%u@%u:%u\n",
+		vin->crop.width, vin->crop.height, vin->crop.left,
+		vin->crop.top, vin->compose.width, vin->compose.height,
+		vin->compose.left, vin->compose.top);
+}
+
+void rvin_crop_scale_comp(struct rvin_dev *vin)
+{
+	const struct rvin_video_format *fmt;
+	u32 stride;
+
+	/* Set Start/End Pixel/Line Pre-Clip */
+	rvin_write(vin, vin->crop.left, VNSPPRC_REG);
+	rvin_write(vin, vin->crop.left + vin->crop.width - 1, VNEPPRC_REG);
+	rvin_write(vin, vin->crop.top, VNSLPRC_REG);
+	rvin_write(vin, vin->crop.top + vin->crop.height - 1, VNELPRC_REG);
+
+	if (vin->scaler)
+		vin->scaler(vin);
+
+	fmt = rvin_format_from_pixel(vin, vin->format.pixelformat);
+	stride = vin->format.bytesperline / fmt->bpp;
+
+	/* For RAW8 format bpp is 1, but the hardware process RAW8
+	 * format in 2 pixel unit hence configure VNIS_REG as stride / 2.
+	 */
+	switch (vin->format.pixelformat) {
+	case V4L2_PIX_FMT_SBGGR8:
+	case V4L2_PIX_FMT_SGBRG8:
+	case V4L2_PIX_FMT_SGRBG8:
+	case V4L2_PIX_FMT_SRGGB8:
+	case V4L2_PIX_FMT_GREY:
+		stride /= 2;
+		break;
+	default:
+		break;
+	}
+
+	rvin_write(vin, stride, VNIS_REG);
+}
+
+/* -----------------------------------------------------------------------------
+ * Hardware setup
+ */
+
+static int rvin_setup(struct rvin_dev *vin)
+{
+	u32 vnmc, dmr, dmr2, interrupts;
+	bool progressive = false, output_is_yuv = false, input_is_yuv = false;
+
+	switch (vin->format.field) {
+	case V4L2_FIELD_TOP:
+		vnmc = VNMC_IM_ODD;
+		break;
+	case V4L2_FIELD_BOTTOM:
+		vnmc = VNMC_IM_EVEN;
+		break;
+	case V4L2_FIELD_INTERLACED:
+		/* Default to TB */
+		vnmc = VNMC_IM_FULL;
+		/* Use BT if video standard can be read and is 60 Hz format */
+		if (!vin->info->use_mc && vin->std & V4L2_STD_525_60)
+			vnmc = VNMC_IM_FULL | VNMC_FOC;
+		break;
+	case V4L2_FIELD_INTERLACED_TB:
+		vnmc = VNMC_IM_FULL;
+		break;
+	case V4L2_FIELD_INTERLACED_BT:
+		vnmc = VNMC_IM_FULL | VNMC_FOC;
+		break;
+	case V4L2_FIELD_SEQ_TB:
+	case V4L2_FIELD_SEQ_BT:
+	case V4L2_FIELD_NONE:
+	case V4L2_FIELD_ALTERNATE:
+		vnmc = VNMC_IM_ODD_EVEN;
+		progressive = true;
+		break;
+	default:
+		vnmc = VNMC_IM_ODD;
+		break;
+	}
+
+	/*
+	 * Input interface
+	 */
+	switch (vin->mbus_code) {
+	case MEDIA_BUS_FMT_YUYV8_1X16:
+		/* BT.601/BT.1358 16bit YCbCr422 */
+		vnmc |= VNMC_INF_YUV16;
+		input_is_yuv = true;
+		break;
+	case MEDIA_BUS_FMT_UYVY8_1X16:
+		vnmc |= VNMC_INF_YUV16 | VNMC_YCAL;
+		input_is_yuv = true;
+		break;
+	case MEDIA_BUS_FMT_UYVY8_2X8:
+		/* BT.656 8bit YCbCr422 or BT.601 8bit YCbCr422 */
+		if (!vin->is_csi &&
+		    vin->parallel.mbus_type == V4L2_MBUS_BT656)
+			vnmc |= VNMC_INF_YUV8_BT656;
+		else
+			vnmc |= VNMC_INF_YUV8_BT601;
+
+		input_is_yuv = true;
+		break;
+	case MEDIA_BUS_FMT_RGB888_1X24:
+		vnmc |= VNMC_INF_RGB888;
+		break;
+	case MEDIA_BUS_FMT_UYVY10_2X10:
+		/* BT.656 10bit YCbCr422 or BT.601 10bit YCbCr422 */
+		if (!vin->is_csi &&
+		    vin->parallel.mbus_type == V4L2_MBUS_BT656)
+			vnmc |= VNMC_INF_YUV10_BT656;
+		else
+			vnmc |= VNMC_INF_YUV10_BT601;
+
+		input_is_yuv = true;
+		break;
+	case MEDIA_BUS_FMT_SBGGR8_1X8:
+	case MEDIA_BUS_FMT_SGBRG8_1X8:
+	case MEDIA_BUS_FMT_SGRBG8_1X8:
+	case MEDIA_BUS_FMT_SRGGB8_1X8:
+	case MEDIA_BUS_FMT_Y8_1X8:
+		vnmc |= VNMC_INF_RAW8;
+		break;
+	default:
+		break;
+	}
+
+	/* Make sure input interface and input format is valid. */
+	if (vin->info->model == RCAR_GEN3) {
+		switch (vnmc & VNMC_INF_MASK) {
+		case VNMC_INF_YUV8_BT656:
+		case VNMC_INF_YUV10_BT656:
+		case VNMC_INF_YUV16:
+		case VNMC_INF_RGB666:
+			if (vin->is_csi) {
+				vin_err(vin, "Invalid setting in MIPI CSI2\n");
+				return -EINVAL;
+			}
+			break;
+		case VNMC_INF_RAW8:
+			if (!vin->is_csi) {
+				vin_err(vin, "Invalid setting in Digital Pins\n");
+				return -EINVAL;
+			}
+			break;
+		default:
+			break;
+		}
+	}
+
+	/* Enable VSYNC Field Toggle mode after one VSYNC input */
+	if (vin->info->model == RCAR_GEN3)
+		dmr2 = VNDMR2_FTEV;
+	else
+		dmr2 = VNDMR2_FTEV | VNDMR2_VLV(1);
+
+	if (!vin->is_csi) {
+		/* Hsync Signal Polarity Select */
+		if (!(vin->parallel.bus.flags & V4L2_MBUS_HSYNC_ACTIVE_LOW))
+			dmr2 |= VNDMR2_HPS;
+
+		/* Vsync Signal Polarity Select */
+		if (!(vin->parallel.bus.flags & V4L2_MBUS_VSYNC_ACTIVE_LOW))
+			dmr2 |= VNDMR2_VPS;
+
+		/* Data Enable Polarity Select */
+		if (vin->parallel.bus.flags & V4L2_MBUS_DATA_ENABLE_LOW)
+			dmr2 |= VNDMR2_CES;
+
+		switch (vin->mbus_code) {
+		case MEDIA_BUS_FMT_UYVY8_2X8:
+			if (vin->parallel.bus.bus_width == 8 &&
+			    vin->parallel.bus.data_shift == 8)
+				dmr2 |= VNDMR2_YDS;
+			break;
+		default:
+			break;
+		}
+	}
+
+	/*
+	 * Output format
+	 */
+	switch (vin->format.pixelformat) {
+	case V4L2_PIX_FMT_NV12:
+	case V4L2_PIX_FMT_NV16:
+		rvin_write(vin,
+			   ALIGN(vin->format.bytesperline * vin->format.height,
+				 0x80), VNUVAOF_REG);
+		dmr = vin->format.pixelformat == V4L2_PIX_FMT_NV12 ?
+			VNDMR_DTMD_YCSEP_420 : VNDMR_DTMD_YCSEP;
+		output_is_yuv = true;
+		break;
+	case V4L2_PIX_FMT_YUYV:
+		dmr = VNDMR_BPSM;
+		output_is_yuv = true;
+		break;
+	case V4L2_PIX_FMT_UYVY:
+		dmr = 0;
+		output_is_yuv = true;
+		break;
+	case V4L2_PIX_FMT_XRGB555:
+		dmr = VNDMR_DTMD_ARGB;
+		break;
+	case V4L2_PIX_FMT_RGB565:
+		dmr = 0;
+		break;
+	case V4L2_PIX_FMT_XBGR32:
+		/* Note: not supported on M1 */
+		dmr = VNDMR_EXRGB;
+		break;
+	case V4L2_PIX_FMT_ARGB555:
+		dmr = (vin->alpha ? VNDMR_ABIT : 0) | VNDMR_DTMD_ARGB;
+		break;
+	case V4L2_PIX_FMT_ABGR32:
+		dmr = VNDMR_A8BIT(vin->alpha) | VNDMR_EXRGB | VNDMR_DTMD_ARGB;
+		break;
+	case V4L2_PIX_FMT_SBGGR8:
+	case V4L2_PIX_FMT_SGBRG8:
+	case V4L2_PIX_FMT_SGRBG8:
+	case V4L2_PIX_FMT_SRGGB8:
+		dmr = 0;
+		break;
+	case V4L2_PIX_FMT_GREY:
+		if (input_is_yuv) {
+			dmr = VNDMR_DTMD_YCSEP | VNDMR_YMODE_Y8;
+			output_is_yuv = true;
+		} else {
+			dmr = 0;
+		}
+		break;
+	default:
+		vin_err(vin, "Invalid pixelformat (0x%x)\n",
+			vin->format.pixelformat);
+		return -EINVAL;
+	}
+
+	/* Always update on field change */
+	vnmc |= VNMC_VUP;
+
+	if (!vin->info->use_isp) {
+		/* If input and output use the same colorspace, use bypass mode */
+		if (input_is_yuv == output_is_yuv)
+			vnmc |= VNMC_BPS;
+
+		if (vin->info->model == RCAR_GEN3) {
+			/* Select between CSI-2 and parallel input */
+			if (vin->is_csi)
+				vnmc &= ~VNMC_DPINE;
+			else
+				vnmc |= VNMC_DPINE;
+		}
+	}
+
+	/* Progressive or interlaced mode */
+	interrupts = progressive ? VNIE_FIE : VNIE_EFE;
+
+	/* Ack interrupts */
+	rvin_write(vin, interrupts, VNINTS_REG);
+	/* Enable interrupts */
+	rvin_write(vin, interrupts, VNIE_REG);
+	/* Start capturing */
+	rvin_write(vin, dmr, VNDMR_REG);
+	rvin_write(vin, dmr2, VNDMR2_REG);
+
+	/* Enable module */
+	rvin_write(vin, vnmc | VNMC_ME, VNMC_REG);
+
+	return 0;
+}
+
+static void rvin_disable_interrupts(struct rvin_dev *vin)
+{
+	rvin_write(vin, 0, VNIE_REG);
+}
+
+static u32 rvin_get_interrupt_status(struct rvin_dev *vin)
+{
+	return rvin_read(vin, VNINTS_REG);
+}
+
+static void rvin_ack_interrupt(struct rvin_dev *vin)
+{
+	rvin_write(vin, rvin_read(vin, VNINTS_REG), VNINTS_REG);
+}
+
+static bool rvin_capture_active(struct rvin_dev *vin)
+{
+	return rvin_read(vin, VNMS_REG) & VNMS_CA;
+}
+
+static enum v4l2_field rvin_get_active_field(struct rvin_dev *vin, u32 vnms)
+{
+	if (vin->format.field == V4L2_FIELD_ALTERNATE) {
+		/* If FS is set it is an Even field. */
+		if (vnms & VNMS_FS)
+			return V4L2_FIELD_BOTTOM;
+		return V4L2_FIELD_TOP;
+	}
+
+	return vin->format.field;
+}
+
+static void rvin_set_slot_addr(struct rvin_dev *vin, int slot, dma_addr_t addr)
+{
+	const struct rvin_video_format *fmt;
+	int offsetx, offsety;
+	dma_addr_t offset;
+
+	fmt = rvin_format_from_pixel(vin, vin->format.pixelformat);
+
+	/*
+	 * There is no HW support for composition do the beast we can
+	 * by modifying the buffer offset
+	 */
+	offsetx = vin->compose.left * fmt->bpp;
+	offsety = vin->compose.top * vin->format.bytesperline;
+	offset = addr + offsetx + offsety;
+
+	/*
+	 * The address needs to be 128 bytes aligned. Driver should never accept
+	 * settings that do not satisfy this in the first place...
+	 */
+	if (WARN_ON((offsetx | offsety | offset) & HW_BUFFER_MASK))
+		return;
+
+	rvin_write(vin, offset, VNMB_REG(slot));
+}
+
+/*
+ * Moves a buffer from the queue to the HW slot. If no buffer is
+ * available use the scratch buffer. The scratch buffer is never
+ * returned to userspace, its only function is to enable the capture
+ * loop to keep running.
+ */
+static void rvin_fill_hw_slot(struct rvin_dev *vin, int slot)
+{
+	struct rvin_buffer *buf;
+	struct vb2_v4l2_buffer *vbuf;
+	dma_addr_t phys_addr;
+	int prev;
+
+	/* A already populated slot shall never be overwritten. */
+	if (WARN_ON(vin->buf_hw[slot].buffer))
+		return;
+
+	prev = (slot == 0 ? HW_BUFFER_NUM : slot) - 1;
+
+	if (vin->buf_hw[prev].type == HALF_TOP) {
+		vbuf = vin->buf_hw[prev].buffer;
+		vin->buf_hw[slot].buffer = vbuf;
+		vin->buf_hw[slot].type = HALF_BOTTOM;
+		switch (vin->format.pixelformat) {
+		case V4L2_PIX_FMT_NV12:
+		case V4L2_PIX_FMT_NV16:
+			phys_addr = vin->buf_hw[prev].phys +
+				vin->format.sizeimage / 4;
+			break;
+		default:
+			phys_addr = vin->buf_hw[prev].phys +
+				vin->format.sizeimage / 2;
+			break;
+		}
+	} else if ((vin->state != STOPPED && vin->state != RUNNING) ||
+		   list_empty(&vin->buf_list)) {
+		vin->buf_hw[slot].buffer = NULL;
+		vin->buf_hw[slot].type = FULL;
+		phys_addr = vin->scratch_phys;
+	} else {
+		/* Keep track of buffer we give to HW */
+		buf = list_entry(vin->buf_list.next, struct rvin_buffer, list);
+		vbuf = &buf->vb;
+		list_del_init(to_buf_list(vbuf));
+		vin->buf_hw[slot].buffer = vbuf;
+
+		vin->buf_hw[slot].type =
+			V4L2_FIELD_IS_SEQUENTIAL(vin->format.field) ?
+			HALF_TOP : FULL;
+
+		/* Setup DMA */
+		phys_addr = vb2_dma_contig_plane_dma_addr(&vbuf->vb2_buf, 0);
+	}
+
+	vin_dbg(vin, "Filling HW slot: %d type: %d buffer: %p\n",
+		slot, vin->buf_hw[slot].type, vin->buf_hw[slot].buffer);
+
+	vin->buf_hw[slot].phys = phys_addr;
+	rvin_set_slot_addr(vin, slot, phys_addr);
+}
+
+static int rvin_capture_start(struct rvin_dev *vin)
+{
+	int slot, ret;
+
+	for (slot = 0; slot < HW_BUFFER_NUM; slot++) {
+		vin->buf_hw[slot].buffer = NULL;
+		vin->buf_hw[slot].type = FULL;
+	}
+
+	for (slot = 0; slot < HW_BUFFER_NUM; slot++)
+		rvin_fill_hw_slot(vin, slot);
+
+	ret = rvin_setup(vin);
+	if (ret)
+		return ret;
+
+	rvin_crop_scale_comp(vin);
+
+	vin_dbg(vin, "Starting to capture\n");
+
+	/* Continuous Frame Capture Mode */
+	rvin_write(vin, VNFC_C_FRAME, VNFC_REG);
+
+	vin->state = STARTING;
+
+	return 0;
+}
+
+static void rvin_capture_stop(struct rvin_dev *vin)
+{
+	/* Set continuous & single transfer off */
+	rvin_write(vin, 0, VNFC_REG);
+
+	/* Disable module */
+	rvin_write(vin, rvin_read(vin, VNMC_REG) & ~VNMC_ME, VNMC_REG);
+}
+
+/* -----------------------------------------------------------------------------
+ * DMA Functions
+ */
+
+#define RVIN_TIMEOUT_MS 100
+#define RVIN_RETRIES 10
+
+static irqreturn_t rvin_irq(int irq, void *data)
+{
+	struct rvin_dev *vin = data;
+	u32 int_status, vnms;
+	int slot;
+	unsigned int handled = 0;
+	unsigned long flags;
+
+	spin_lock_irqsave(&vin->qlock, flags);
+
+	int_status = rvin_get_interrupt_status(vin);
+	if (!int_status)
+		goto done;
+
+	rvin_ack_interrupt(vin);
+	handled = 1;
+
+	/* Nothing to do if nothing was captured. */
+	if (!(int_status & VNINTS_FIS))
+		goto done;
+
+	/* Nothing to do if capture status is 'STOPPED' */
+	if (vin->state == STOPPED) {
+		vin_dbg(vin, "IRQ while state stopped\n");
+		goto done;
+	}
+
+	/* Prepare for capture and update state */
+	vnms = rvin_read(vin, VNMS_REG);
+	slot = (vnms & VNMS_FBS_MASK) >> VNMS_FBS_SHIFT;
+
+	/*
+	 * To hand buffers back in a known order to userspace start
+	 * to capture first from slot 0.
+	 */
+	if (vin->state == STARTING) {
+		if (slot != 0) {
+			vin_dbg(vin, "Starting sync slot: %d\n", slot);
+			goto done;
+		}
+
+		vin_dbg(vin, "Capture start synced!\n");
+		vin->state = RUNNING;
+	}
+
+	/* Capture frame */
+	if (vin->buf_hw[slot].buffer) {
+		/*
+		 * Nothing to do but refill the hardware slot if
+		 * capture only filled first half of vb2 buffer.
+		 */
+		if (vin->buf_hw[slot].type == HALF_TOP) {
+			vin->buf_hw[slot].buffer = NULL;
+			rvin_fill_hw_slot(vin, slot);
+			goto done;
+		}
+
+		vin->buf_hw[slot].buffer->field =
+			rvin_get_active_field(vin, vnms);
+		vin->buf_hw[slot].buffer->sequence = vin->sequence;
+		vin->buf_hw[slot].buffer->vb2_buf.timestamp = ktime_get_ns();
+		vb2_buffer_done(&vin->buf_hw[slot].buffer->vb2_buf,
+				VB2_BUF_STATE_DONE);
+		vin->buf_hw[slot].buffer = NULL;
+	} else {
+		/* Scratch buffer was used, dropping frame. */
+		vin_dbg(vin, "Dropping frame %u\n", vin->sequence);
+	}
+
+	vin->sequence++;
+
+	/* Prepare for next frame */
+	rvin_fill_hw_slot(vin, slot);
+done:
+	spin_unlock_irqrestore(&vin->qlock, flags);
+
+	return IRQ_RETVAL(handled);
+}
+
+static void return_unused_buffers(struct rvin_dev *vin,
+				  enum vb2_buffer_state state)
+{
+	struct rvin_buffer *buf, *node;
+	unsigned long flags;
+
+	spin_lock_irqsave(&vin->qlock, flags);
+
+	list_for_each_entry_safe(buf, node, &vin->buf_list, list) {
+		vb2_buffer_done(&buf->vb.vb2_buf, state);
+		list_del(&buf->list);
+	}
+
+	spin_unlock_irqrestore(&vin->qlock, flags);
+}
+
+static int rvin_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
+			    unsigned int *nplanes, unsigned int sizes[],
+			    struct device *alloc_devs[])
+
+{
+	struct rvin_dev *vin = vb2_get_drv_priv(vq);
+
+	/* Make sure the image size is large enough. */
+	if (*nplanes)
+		return sizes[0] < vin->format.sizeimage ? -EINVAL : 0;
+
+	*nplanes = 1;
+	sizes[0] = vin->format.sizeimage;
+
+	return 0;
+};
+
+static int rvin_buffer_prepare(struct vb2_buffer *vb)
+{
+	struct rvin_dev *vin = vb2_get_drv_priv(vb->vb2_queue);
+	unsigned long size = vin->format.sizeimage;
+
+	if (vb2_plane_size(vb, 0) < size) {
+		vin_err(vin, "buffer too small (%lu < %lu)\n",
+			vb2_plane_size(vb, 0), size);
+		return -EINVAL;
+	}
+
+	vb2_set_plane_payload(vb, 0, size);
+
+	return 0;
+}
+
+static void rvin_buffer_queue(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct rvin_dev *vin = vb2_get_drv_priv(vb->vb2_queue);
+	unsigned long flags;
+
+	spin_lock_irqsave(&vin->qlock, flags);
+
+	list_add_tail(to_buf_list(vbuf), &vin->buf_list);
+
+	spin_unlock_irqrestore(&vin->qlock, flags);
+}
+
+static int rvin_mc_validate_format(struct rvin_dev *vin, struct v4l2_subdev *sd,
+				   struct media_pad *pad)
+{
+	struct v4l2_subdev_format fmt = {
+		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
+	};
+
+	fmt.pad = pad->index;
+	if (v4l2_subdev_call(sd, pad, get_fmt, NULL, &fmt))
+		return -EPIPE;
+
+	switch (fmt.format.code) {
+	case MEDIA_BUS_FMT_YUYV8_1X16:
+	case MEDIA_BUS_FMT_UYVY8_1X16:
+	case MEDIA_BUS_FMT_UYVY8_2X8:
+	case MEDIA_BUS_FMT_UYVY10_2X10:
+	case MEDIA_BUS_FMT_RGB888_1X24:
+		break;
+	case MEDIA_BUS_FMT_SBGGR8_1X8:
+		if (vin->format.pixelformat != V4L2_PIX_FMT_SBGGR8)
+			return -EPIPE;
+		break;
+	case MEDIA_BUS_FMT_SGBRG8_1X8:
+		if (vin->format.pixelformat != V4L2_PIX_FMT_SGBRG8)
+			return -EPIPE;
+		break;
+	case MEDIA_BUS_FMT_SGRBG8_1X8:
+		if (vin->format.pixelformat != V4L2_PIX_FMT_SGRBG8)
+			return -EPIPE;
+		break;
+	case MEDIA_BUS_FMT_SRGGB8_1X8:
+		if (vin->format.pixelformat != V4L2_PIX_FMT_SRGGB8)
+			return -EPIPE;
+		break;
+	case MEDIA_BUS_FMT_Y8_1X8:
+		if (vin->format.pixelformat != V4L2_PIX_FMT_GREY)
+			return -EPIPE;
+		break;
+	default:
+		return -EPIPE;
+	}
+	vin->mbus_code = fmt.format.code;
+
+	switch (fmt.format.field) {
+	case V4L2_FIELD_TOP:
+	case V4L2_FIELD_BOTTOM:
+	case V4L2_FIELD_NONE:
+	case V4L2_FIELD_INTERLACED_TB:
+	case V4L2_FIELD_INTERLACED_BT:
+	case V4L2_FIELD_INTERLACED:
+	case V4L2_FIELD_SEQ_TB:
+	case V4L2_FIELD_SEQ_BT:
+		/* Supported natively */
+		break;
+	case V4L2_FIELD_ALTERNATE:
+		switch (vin->format.field) {
+		case V4L2_FIELD_TOP:
+		case V4L2_FIELD_BOTTOM:
+		case V4L2_FIELD_NONE:
+		case V4L2_FIELD_ALTERNATE:
+			break;
+		case V4L2_FIELD_INTERLACED_TB:
+		case V4L2_FIELD_INTERLACED_BT:
+		case V4L2_FIELD_INTERLACED:
+		case V4L2_FIELD_SEQ_TB:
+		case V4L2_FIELD_SEQ_BT:
+			/* Use VIN hardware to combine the two fields */
+			fmt.format.height *= 2;
+			break;
+		default:
+			return -EPIPE;
+		}
+		break;
+	default:
+		return -EPIPE;
+	}
+
+	if (rvin_scaler_needed(vin)) {
+		/* Gen3 can't scale NV12 */
+		if (vin->info->model == RCAR_GEN3 &&
+		    vin->format.pixelformat == V4L2_PIX_FMT_NV12)
+			return -EPIPE;
+
+		if (!vin->scaler)
+			return -EPIPE;
+	} else {
+		if (vin->format.pixelformat == V4L2_PIX_FMT_NV12) {
+			if (ALIGN(fmt.format.width, 32) != vin->format.width ||
+			    ALIGN(fmt.format.height, 32) != vin->format.height)
+				return -EPIPE;
+		} else {
+			if (fmt.format.width != vin->format.width ||
+			    fmt.format.height != vin->format.height)
+				return -EPIPE;
+		}
+	}
+
+	if (fmt.format.code != vin->mbus_code)
+		return -EPIPE;
+
+	return 0;
+}
+
+static int rvin_set_stream(struct rvin_dev *vin, int on)
+{
+	struct v4l2_subdev *sd;
+	struct media_pad *pad;
+	int ret;
+
+	/* No media controller used, simply pass operation to subdevice. */
+	if (!vin->info->use_mc) {
+		ret = v4l2_subdev_call(vin->parallel.subdev, video, s_stream,
+				       on);
+
+		return ret == -ENOIOCTLCMD ? 0 : ret;
+	}
+
+	pad = media_pad_remote_pad_first(&vin->pad);
+	if (!pad)
+		return -EPIPE;
+
+	sd = media_entity_to_v4l2_subdev(pad->entity);
+
+	if (!on) {
+		video_device_pipeline_stop(&vin->vdev);
+		return v4l2_subdev_call(sd, video, s_stream, 0);
+	}
+
+	ret = rvin_mc_validate_format(vin, sd, pad);
+	if (ret)
+		return ret;
+
+	ret = video_device_pipeline_alloc_start(&vin->vdev);
+	if (ret)
+		return ret;
+
+	ret = v4l2_subdev_call(sd, video, s_stream, 1);
+	if (ret == -ENOIOCTLCMD)
+		ret = 0;
+	if (ret)
+		video_device_pipeline_stop(&vin->vdev);
+
+	return ret;
+}
+
+int rvin_start_streaming(struct rvin_dev *vin)
+{
+	unsigned long flags;
+	int ret;
+
+	ret = rvin_set_stream(vin, 1);
+	if (ret)
+		return ret;
+
+	spin_lock_irqsave(&vin->qlock, flags);
+
+	vin->sequence = 0;
+
+	ret = rvin_capture_start(vin);
+	if (ret)
+		rvin_set_stream(vin, 0);
+
+	spin_unlock_irqrestore(&vin->qlock, flags);
+
+	return ret;
+}
+
+static int rvin_start_streaming_vq(struct vb2_queue *vq, unsigned int count)
+{
+	struct rvin_dev *vin = vb2_get_drv_priv(vq);
+	int ret = -ENOMEM;
+
+	/* Allocate scratch buffer. */
+	vin->scratch = dma_alloc_coherent(vin->dev, vin->format.sizeimage,
+					  &vin->scratch_phys, GFP_KERNEL);
+	if (!vin->scratch)
+		goto err_scratch;
+
+	ret = rvin_start_streaming(vin);
+	if (ret)
+		goto err_start;
+
+	return 0;
+err_start:
+	dma_free_coherent(vin->dev, vin->format.sizeimage, vin->scratch,
+			  vin->scratch_phys);
+err_scratch:
+	return_unused_buffers(vin, VB2_BUF_STATE_QUEUED);
+
+	return ret;
+}
+
+void rvin_stop_streaming(struct rvin_dev *vin)
+{
+	unsigned int i, retries;
+	unsigned long flags;
+	bool buffersFreed;
+
+	spin_lock_irqsave(&vin->qlock, flags);
+
+	if (vin->state == STOPPED) {
+		spin_unlock_irqrestore(&vin->qlock, flags);
+		return;
+	}
+
+	vin->state = STOPPING;
+
+	/* Wait until only scratch buffer is used, max 3 interrupts. */
+	retries = 0;
+	while (retries++ < RVIN_RETRIES) {
+		buffersFreed = true;
+		for (i = 0; i < HW_BUFFER_NUM; i++)
+			if (vin->buf_hw[i].buffer)
+				buffersFreed = false;
+
+		if (buffersFreed)
+			break;
+
+		spin_unlock_irqrestore(&vin->qlock, flags);
+		msleep(RVIN_TIMEOUT_MS);
+		spin_lock_irqsave(&vin->qlock, flags);
+	}
+
+	/* Wait for streaming to stop */
+	retries = 0;
+	while (retries++ < RVIN_RETRIES) {
+
+		rvin_capture_stop(vin);
+
+		/* Check if HW is stopped */
+		if (!rvin_capture_active(vin)) {
+			vin->state = STOPPED;
+			break;
+		}
+
+		spin_unlock_irqrestore(&vin->qlock, flags);
+		msleep(RVIN_TIMEOUT_MS);
+		spin_lock_irqsave(&vin->qlock, flags);
+	}
+
+	if (!buffersFreed || vin->state != STOPPED) {
+		/*
+		 * If this happens something have gone horribly wrong.
+		 * Set state to stopped to prevent the interrupt handler
+		 * to make things worse...
+		 */
+		vin_err(vin, "Failed stop HW, something is seriously broken\n");
+		vin->state = STOPPED;
+	}
+
+	spin_unlock_irqrestore(&vin->qlock, flags);
+
+	/* If something went wrong, free buffers with an error. */
+	if (!buffersFreed) {
+		return_unused_buffers(vin, VB2_BUF_STATE_ERROR);
+		for (i = 0; i < HW_BUFFER_NUM; i++) {
+			if (vin->buf_hw[i].buffer)
+				vb2_buffer_done(&vin->buf_hw[i].buffer->vb2_buf,
+						VB2_BUF_STATE_ERROR);
+		}
+	}
+
+	rvin_set_stream(vin, 0);
+
+	/* disable interrupts */
+	rvin_disable_interrupts(vin);
+}
+
+static void rvin_stop_streaming_vq(struct vb2_queue *vq)
+{
+	struct rvin_dev *vin = vb2_get_drv_priv(vq);
+
+	rvin_stop_streaming(vin);
+
+	/* Free scratch buffer. */
+	dma_free_coherent(vin->dev, vin->format.sizeimage, vin->scratch,
+			  vin->scratch_phys);
+
+	return_unused_buffers(vin, VB2_BUF_STATE_ERROR);
+}
+
+static const struct vb2_ops rvin_qops = {
+	.queue_setup		= rvin_queue_setup,
+	.buf_prepare		= rvin_buffer_prepare,
+	.buf_queue		= rvin_buffer_queue,
+	.start_streaming	= rvin_start_streaming_vq,
+	.stop_streaming		= rvin_stop_streaming_vq,
+	.wait_prepare		= vb2_ops_wait_prepare,
+	.wait_finish		= vb2_ops_wait_finish,
+};
+
+void rvin_dma_unregister(struct rvin_dev *vin)
+{
+	mutex_destroy(&vin->lock);
+
+	v4l2_device_unregister(&vin->v4l2_dev);
+}
+
+int rvin_dma_register(struct rvin_dev *vin, int irq)
+{
+	struct vb2_queue *q = &vin->queue;
+	int i, ret;
+
+	/* Initialize the top-level structure */
+	ret = v4l2_device_register(vin->dev, &vin->v4l2_dev);
+	if (ret)
+		return ret;
+
+	mutex_init(&vin->lock);
+	INIT_LIST_HEAD(&vin->buf_list);
+
+	spin_lock_init(&vin->qlock);
+
+	vin->state = STOPPED;
+
+	for (i = 0; i < HW_BUFFER_NUM; i++)
+		vin->buf_hw[i].buffer = NULL;
+
+	/* buffer queue */
+	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	q->io_modes = VB2_MMAP | VB2_READ | VB2_DMABUF;
+	q->lock = &vin->lock;
+	q->drv_priv = vin;
+	q->buf_struct_size = sizeof(struct rvin_buffer);
+	q->ops = &rvin_qops;
+	q->mem_ops = &vb2_dma_contig_memops;
+	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+	q->min_buffers_needed = 4;
+	q->dev = vin->dev;
+
+	ret = vb2_queue_init(q);
+	if (ret < 0) {
+		vin_err(vin, "failed to initialize VB2 queue\n");
+		goto error;
+	}
+
+	/* irq */
+	ret = devm_request_irq(vin->dev, irq, rvin_irq, IRQF_SHARED,
+			       KBUILD_MODNAME, vin);
+	if (ret) {
+		vin_err(vin, "failed to request irq\n");
+		goto error;
+	}
+
+	return 0;
+error:
+	rvin_dma_unregister(vin);
+
+	return ret;
+}
+
+/* -----------------------------------------------------------------------------
+ * Gen3 CHSEL manipulation
+ */
+
+/*
+ * There is no need to have locking around changing the routing
+ * as it's only possible to do so when no VIN in the group is
+ * streaming so nothing can race with the VNMC register.
+ */
+int rvin_set_channel_routing(struct rvin_dev *vin, u8 chsel)
+{
+	const struct rvin_group_route *route;
+	u32 ifmd = 0;
+	u32 vnmc;
+	int ret;
+
+	ret = pm_runtime_resume_and_get(vin->dev);
+	if (ret < 0)
+		return ret;
+
+	/* Make register writes take effect immediately. */
+	vnmc = rvin_read(vin, VNMC_REG);
+	rvin_write(vin, vnmc & ~VNMC_VUP, VNMC_REG);
+
+	/*
+	 * Set data expansion mode to "pad with 0s" by inspecting the routes
+	 * table to find out which bit fields are available in the IFMD
+	 * register. IFMD_DES1 controls data expansion mode for CSI20/21,
+	 * IFMD_DES0 controls data expansion mode for CSI40/41.
+	 */
+	for (route = vin->info->routes; route->chsel; route++) {
+		if (route->csi == RVIN_CSI20 || route->csi == RVIN_CSI21)
+			ifmd |= VNCSI_IFMD_DES1;
+		else
+			ifmd |= VNCSI_IFMD_DES0;
+
+		if (ifmd == (VNCSI_IFMD_DES0 | VNCSI_IFMD_DES1))
+			break;
+	}
+
+	if (ifmd) {
+		ifmd |= VNCSI_IFMD_CSI_CHSEL(chsel);
+		rvin_write(vin, ifmd, VNCSI_IFMD_REG);
+	}
+
+	vin_dbg(vin, "Set IFMD 0x%x\n", ifmd);
+
+	vin->chsel = chsel;
+
+	/* Restore VNMC. */
+	rvin_write(vin, vnmc, VNMC_REG);
+
+	pm_runtime_put(vin->dev);
+
+	return 0;
+}
+
+void rvin_set_alpha(struct rvin_dev *vin, unsigned int alpha)
+{
+	unsigned long flags;
+	u32 dmr;
+
+	spin_lock_irqsave(&vin->qlock, flags);
+
+	vin->alpha = alpha;
+
+	if (vin->state == STOPPED)
+		goto out;
+
+	switch (vin->format.pixelformat) {
+	case V4L2_PIX_FMT_ARGB555:
+		dmr = rvin_read(vin, VNDMR_REG) & ~VNDMR_ABIT;
+		if (vin->alpha)
+			dmr |= VNDMR_ABIT;
+		break;
+	case V4L2_PIX_FMT_ABGR32:
+		dmr = rvin_read(vin, VNDMR_REG) & ~VNDMR_A8BIT_MASK;
+		dmr |= VNDMR_A8BIT(vin->alpha);
+		break;
+	default:
+		goto out;
+	}
+
+	rvin_write(vin, dmr,  VNDMR_REG);
+out:
+	spin_unlock_irqrestore(&vin->qlock, flags);
+}
diff --git a/drivers/media/platform/renesas/rcar-vin/rcar-v4l2.c b/drivers/media/platform/renesas/rcar-vin/rcar-v4l2.c
new file mode 100644
index 000000000..073f70c6a
--- /dev/null
+++ b/drivers/media/platform/renesas/rcar-vin/rcar-v4l2.c
@@ -0,0 +1,1148 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Driver for Renesas R-Car VIN
+ *
+ * Copyright (C) 2016 Renesas Electronics Corp.
+ * Copyright (C) 2011-2013 Renesas Solutions Corp.
+ * Copyright (C) 2013 Cogent Embedded, Inc., <source@cogentembedded.com>
+ * Copyright (C) 2008 Magnus Damm
+ *
+ * Based on the soc-camera rcar_vin driver
+ */
+
+#include <linux/pm_runtime.h>
+
+#include <media/v4l2-event.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-mc.h>
+#include <media/v4l2-rect.h>
+
+#include "rcar-vin.h"
+
+#define RVIN_DEFAULT_FORMAT	V4L2_PIX_FMT_YUYV
+#define RVIN_DEFAULT_WIDTH	800
+#define RVIN_DEFAULT_HEIGHT	600
+#define RVIN_DEFAULT_FIELD	V4L2_FIELD_NONE
+#define RVIN_DEFAULT_COLORSPACE	V4L2_COLORSPACE_SRGB
+
+/* -----------------------------------------------------------------------------
+ * Format Conversions
+ */
+
+static const struct rvin_video_format rvin_formats[] = {
+	{
+		.fourcc			= V4L2_PIX_FMT_NV12,
+		.bpp			= 1,
+	},
+	{
+		.fourcc			= V4L2_PIX_FMT_NV16,
+		.bpp			= 1,
+	},
+	{
+		.fourcc			= V4L2_PIX_FMT_YUYV,
+		.bpp			= 2,
+	},
+	{
+		.fourcc			= V4L2_PIX_FMT_UYVY,
+		.bpp			= 2,
+	},
+	{
+		.fourcc			= V4L2_PIX_FMT_RGB565,
+		.bpp			= 2,
+	},
+	{
+		.fourcc			= V4L2_PIX_FMT_XRGB555,
+		.bpp			= 2,
+	},
+	{
+		.fourcc			= V4L2_PIX_FMT_XBGR32,
+		.bpp			= 4,
+	},
+	{
+		.fourcc			= V4L2_PIX_FMT_ARGB555,
+		.bpp			= 2,
+	},
+	{
+		.fourcc			= V4L2_PIX_FMT_ABGR32,
+		.bpp			= 4,
+	},
+	{
+		.fourcc			= V4L2_PIX_FMT_SBGGR8,
+		.bpp			= 1,
+	},
+	{
+		.fourcc			= V4L2_PIX_FMT_SGBRG8,
+		.bpp			= 1,
+	},
+	{
+		.fourcc			= V4L2_PIX_FMT_SGRBG8,
+		.bpp			= 1,
+	},
+	{
+		.fourcc			= V4L2_PIX_FMT_SRGGB8,
+		.bpp			= 1,
+	},
+	{
+		.fourcc			= V4L2_PIX_FMT_GREY,
+		.bpp			= 1,
+	},
+};
+
+const struct rvin_video_format *rvin_format_from_pixel(struct rvin_dev *vin,
+						       u32 pixelformat)
+{
+	int i;
+
+	switch (pixelformat) {
+	case V4L2_PIX_FMT_XBGR32:
+		if (vin->info->model == RCAR_M1)
+			return NULL;
+		break;
+	case V4L2_PIX_FMT_NV12:
+		/*
+		 * If NV12 is supported it's only supported on channels 0, 1, 4,
+		 * 5, 8, 9, 12 and 13.
+		 */
+		if (!vin->info->nv12 || !(BIT(vin->id) & 0x3333))
+			return NULL;
+		break;
+	default:
+		break;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(rvin_formats); i++)
+		if (rvin_formats[i].fourcc == pixelformat)
+			return rvin_formats + i;
+
+	return NULL;
+}
+
+static u32 rvin_format_bytesperline(struct rvin_dev *vin,
+				    struct v4l2_pix_format *pix)
+{
+	const struct rvin_video_format *fmt;
+	u32 align;
+
+	fmt = rvin_format_from_pixel(vin, pix->pixelformat);
+
+	if (WARN_ON(!fmt))
+		return -EINVAL;
+
+	switch (pix->pixelformat) {
+	case V4L2_PIX_FMT_NV12:
+	case V4L2_PIX_FMT_NV16:
+		align = 0x20;
+		break;
+	default:
+		align = 0x10;
+		break;
+	}
+
+	if (V4L2_FIELD_IS_SEQUENTIAL(pix->field))
+		align = 0x80;
+
+	return ALIGN(pix->width, align) * fmt->bpp;
+}
+
+static u32 rvin_format_sizeimage(struct v4l2_pix_format *pix)
+{
+	switch (pix->pixelformat) {
+	case V4L2_PIX_FMT_NV12:
+		return pix->bytesperline * pix->height * 3 / 2;
+	case V4L2_PIX_FMT_NV16:
+		return pix->bytesperline * pix->height * 2;
+	default:
+		return pix->bytesperline * pix->height;
+	}
+}
+
+static void rvin_format_align(struct rvin_dev *vin, struct v4l2_pix_format *pix)
+{
+	u32 walign;
+
+	if (!rvin_format_from_pixel(vin, pix->pixelformat))
+		pix->pixelformat = RVIN_DEFAULT_FORMAT;
+
+	switch (pix->field) {
+	case V4L2_FIELD_TOP:
+	case V4L2_FIELD_BOTTOM:
+	case V4L2_FIELD_NONE:
+	case V4L2_FIELD_INTERLACED_TB:
+	case V4L2_FIELD_INTERLACED_BT:
+	case V4L2_FIELD_INTERLACED:
+	case V4L2_FIELD_ALTERNATE:
+	case V4L2_FIELD_SEQ_TB:
+	case V4L2_FIELD_SEQ_BT:
+		break;
+	default:
+		pix->field = RVIN_DEFAULT_FIELD;
+		break;
+	}
+
+	/* Hardware limits width alignment based on format. */
+	switch (pix->pixelformat) {
+	/* Multiple of 32 (2^5) for NV12/16. */
+	case V4L2_PIX_FMT_NV12:
+	case V4L2_PIX_FMT_NV16:
+		walign = 5;
+		break;
+	/* Multiple of 2 (2^1) for YUV. */
+	case V4L2_PIX_FMT_YUYV:
+	case V4L2_PIX_FMT_UYVY:
+		walign = 1;
+		break;
+	/* No multiple for RGB. */
+	default:
+		walign = 0;
+		break;
+	}
+
+	/* Limit to VIN capabilities */
+	v4l_bound_align_image(&pix->width, 5, vin->info->max_width, walign,
+			      &pix->height, 2, vin->info->max_height, 0, 0);
+
+	pix->bytesperline = rvin_format_bytesperline(vin, pix);
+	pix->sizeimage = rvin_format_sizeimage(pix);
+
+	vin_dbg(vin, "Format %ux%u bpl: %u size: %u\n",
+		pix->width, pix->height, pix->bytesperline, pix->sizeimage);
+}
+
+/* -----------------------------------------------------------------------------
+ * V4L2
+ */
+
+static int rvin_reset_format(struct rvin_dev *vin)
+{
+	struct v4l2_subdev_format fmt = {
+		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
+		.pad = vin->parallel.source_pad,
+	};
+	int ret;
+
+	ret = v4l2_subdev_call(vin_to_source(vin), pad, get_fmt, NULL, &fmt);
+	if (ret)
+		return ret;
+
+	v4l2_fill_pix_format(&vin->format, &fmt.format);
+
+	vin->crop.top = 0;
+	vin->crop.left = 0;
+	vin->crop.width = vin->format.width;
+	vin->crop.height = vin->format.height;
+
+	/*  Make use of the hardware interlacer by default. */
+	if (vin->format.field == V4L2_FIELD_ALTERNATE) {
+		vin->format.field = V4L2_FIELD_INTERLACED;
+		vin->format.height *= 2;
+	}
+
+	rvin_format_align(vin, &vin->format);
+
+	vin->compose.top = 0;
+	vin->compose.left = 0;
+	vin->compose.width = vin->format.width;
+	vin->compose.height = vin->format.height;
+
+	return 0;
+}
+
+static int rvin_try_format(struct rvin_dev *vin, u32 which,
+			   struct v4l2_pix_format *pix,
+			   struct v4l2_rect *src_rect)
+{
+	struct v4l2_subdev *sd = vin_to_source(vin);
+	struct v4l2_subdev_state *sd_state;
+	static struct lock_class_key key;
+	struct v4l2_subdev_format format = {
+		.which = which,
+		.pad = vin->parallel.source_pad,
+	};
+	enum v4l2_field field;
+	u32 width, height;
+	int ret;
+
+	/*
+	 * FIXME: Drop this call, drivers are not supposed to use
+	 * __v4l2_subdev_state_alloc().
+	 */
+	sd_state = __v4l2_subdev_state_alloc(sd, "rvin:state->lock", &key);
+	if (IS_ERR(sd_state))
+		return PTR_ERR(sd_state);
+
+	if (!rvin_format_from_pixel(vin, pix->pixelformat))
+		pix->pixelformat = RVIN_DEFAULT_FORMAT;
+
+	v4l2_fill_mbus_format(&format.format, pix, vin->mbus_code);
+
+	/* Allow the video device to override field and to scale */
+	field = pix->field;
+	width = pix->width;
+	height = pix->height;
+
+	ret = v4l2_subdev_call(sd, pad, set_fmt, sd_state, &format);
+	if (ret < 0 && ret != -ENOIOCTLCMD)
+		goto done;
+	ret = 0;
+
+	v4l2_fill_pix_format(pix, &format.format);
+
+	if (src_rect) {
+		src_rect->top = 0;
+		src_rect->left = 0;
+		src_rect->width = pix->width;
+		src_rect->height = pix->height;
+	}
+
+	if (field != V4L2_FIELD_ANY)
+		pix->field = field;
+
+	pix->width = width;
+	pix->height = height;
+
+	rvin_format_align(vin, pix);
+done:
+	__v4l2_subdev_state_free(sd_state);
+
+	return ret;
+}
+
+static int rvin_querycap(struct file *file, void *priv,
+			 struct v4l2_capability *cap)
+{
+	strscpy(cap->driver, KBUILD_MODNAME, sizeof(cap->driver));
+	strscpy(cap->card, "R_Car_VIN", sizeof(cap->card));
+	return 0;
+}
+
+static int rvin_try_fmt_vid_cap(struct file *file, void *priv,
+				struct v4l2_format *f)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+
+	return rvin_try_format(vin, V4L2_SUBDEV_FORMAT_TRY, &f->fmt.pix, NULL);
+}
+
+static int rvin_s_fmt_vid_cap(struct file *file, void *priv,
+			      struct v4l2_format *f)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+	struct v4l2_rect fmt_rect, src_rect;
+	int ret;
+
+	if (vb2_is_busy(&vin->queue))
+		return -EBUSY;
+
+	ret = rvin_try_format(vin, V4L2_SUBDEV_FORMAT_ACTIVE, &f->fmt.pix,
+			      &src_rect);
+	if (ret)
+		return ret;
+
+	vin->format = f->fmt.pix;
+
+	fmt_rect.top = 0;
+	fmt_rect.left = 0;
+	fmt_rect.width = vin->format.width;
+	fmt_rect.height = vin->format.height;
+
+	v4l2_rect_map_inside(&vin->crop, &src_rect);
+	v4l2_rect_map_inside(&vin->compose, &fmt_rect);
+
+	return 0;
+}
+
+static int rvin_g_fmt_vid_cap(struct file *file, void *priv,
+			      struct v4l2_format *f)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+
+	f->fmt.pix = vin->format;
+
+	return 0;
+}
+
+static int rvin_enum_fmt_vid_cap(struct file *file, void *priv,
+				 struct v4l2_fmtdesc *f)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+	unsigned int i;
+	int matched;
+
+	/*
+	 * If mbus_code is set only enumerate supported pixel formats for that
+	 * bus code. Converting from YCbCr to RGB and RGB to YCbCr is possible
+	 * with VIN, so all supported YCbCr and RGB media bus codes can produce
+	 * all of the related pixel formats. If mbus_code is not set enumerate
+	 * all possible pixelformats.
+	 *
+	 * TODO: Once raw MEDIA_BUS_FMT_SRGGB12_1X12 format is added to the
+	 * driver this needs to be extended so raw media bus code only result in
+	 * raw pixel format.
+	 */
+	switch (f->mbus_code) {
+	case 0:
+	case MEDIA_BUS_FMT_YUYV8_1X16:
+	case MEDIA_BUS_FMT_UYVY8_1X16:
+	case MEDIA_BUS_FMT_UYVY8_2X8:
+	case MEDIA_BUS_FMT_UYVY10_2X10:
+	case MEDIA_BUS_FMT_RGB888_1X24:
+		break;
+	case MEDIA_BUS_FMT_SBGGR8_1X8:
+		if (f->index)
+			return -EINVAL;
+		f->pixelformat = V4L2_PIX_FMT_SBGGR8;
+		return 0;
+	case MEDIA_BUS_FMT_SGBRG8_1X8:
+		if (f->index)
+			return -EINVAL;
+		f->pixelformat = V4L2_PIX_FMT_SGBRG8;
+		return 0;
+	case MEDIA_BUS_FMT_SGRBG8_1X8:
+		if (f->index)
+			return -EINVAL;
+		f->pixelformat = V4L2_PIX_FMT_SGRBG8;
+		return 0;
+	case MEDIA_BUS_FMT_SRGGB8_1X8:
+		if (f->index)
+			return -EINVAL;
+		f->pixelformat = V4L2_PIX_FMT_SRGGB8;
+		return 0;
+	default:
+		return -EINVAL;
+	}
+
+	matched = -1;
+	for (i = 0; i < ARRAY_SIZE(rvin_formats); i++) {
+		if (rvin_format_from_pixel(vin, rvin_formats[i].fourcc))
+			matched++;
+
+		if (matched == f->index) {
+			f->pixelformat = rvin_formats[i].fourcc;
+			return 0;
+		}
+	}
+
+	return -EINVAL;
+}
+
+static int rvin_remote_rectangle(struct rvin_dev *vin, struct v4l2_rect *rect)
+{
+	struct v4l2_subdev_format fmt = {
+		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
+	};
+	struct v4l2_subdev *sd;
+	unsigned int index;
+	int ret;
+
+	if (vin->info->use_mc) {
+		struct media_pad *pad = media_pad_remote_pad_first(&vin->pad);
+
+		if (!pad)
+			return -EINVAL;
+
+		sd = media_entity_to_v4l2_subdev(pad->entity);
+		index = pad->index;
+	} else {
+		sd = vin_to_source(vin);
+		index = vin->parallel.source_pad;
+	}
+
+	fmt.pad = index;
+	ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &fmt);
+	if (ret)
+		return ret;
+
+	rect->left = rect->top = 0;
+	rect->width = fmt.format.width;
+	rect->height = fmt.format.height;
+
+	if (fmt.format.field == V4L2_FIELD_ALTERNATE) {
+		switch (vin->format.field) {
+		case V4L2_FIELD_INTERLACED_TB:
+		case V4L2_FIELD_INTERLACED_BT:
+		case V4L2_FIELD_INTERLACED:
+		case V4L2_FIELD_SEQ_TB:
+		case V4L2_FIELD_SEQ_BT:
+			rect->height *= 2;
+			break;
+		}
+	}
+
+	return 0;
+}
+
+static int rvin_g_selection(struct file *file, void *fh,
+			    struct v4l2_selection *s)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+	int ret;
+
+	if (!vin->scaler)
+		return -ENOIOCTLCMD;
+
+	if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	switch (s->target) {
+	case V4L2_SEL_TGT_CROP_BOUNDS:
+	case V4L2_SEL_TGT_CROP_DEFAULT:
+		ret = rvin_remote_rectangle(vin, &s->r);
+		if (ret)
+			return ret;
+
+		break;
+	case V4L2_SEL_TGT_CROP:
+		s->r = vin->crop;
+		break;
+	case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+	case V4L2_SEL_TGT_COMPOSE_DEFAULT:
+		s->r.left = s->r.top = 0;
+		s->r.width = vin->format.width;
+		s->r.height = vin->format.height;
+		break;
+	case V4L2_SEL_TGT_COMPOSE:
+		s->r = vin->compose;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int rvin_s_selection(struct file *file, void *fh,
+			    struct v4l2_selection *s)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+	const struct rvin_video_format *fmt;
+	struct v4l2_rect r = s->r;
+	struct v4l2_rect max_rect;
+	struct v4l2_rect min_rect = {
+		.width = 6,
+		.height = 2,
+	};
+	int ret;
+
+	if (!vin->scaler)
+		return -ENOIOCTLCMD;
+
+	if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	v4l2_rect_set_min_size(&r, &min_rect);
+
+	switch (s->target) {
+	case V4L2_SEL_TGT_CROP:
+		/* Can't crop outside of source input */
+		ret = rvin_remote_rectangle(vin, &max_rect);
+		if (ret)
+			return ret;
+
+		v4l2_rect_map_inside(&r, &max_rect);
+
+		v4l_bound_align_image(&r.width, 6, max_rect.width, 0,
+				      &r.height, 2, max_rect.height, 0, 0);
+
+		r.top  = clamp_t(s32, r.top, 0, max_rect.height - r.height);
+		r.left = clamp_t(s32, r.left, 0, max_rect.width - r.width);
+
+		vin->crop = s->r = r;
+
+		vin_dbg(vin, "Cropped %dx%d@%d:%d of %dx%d\n",
+			r.width, r.height, r.left, r.top,
+			max_rect.width, max_rect.height);
+		break;
+	case V4L2_SEL_TGT_COMPOSE:
+		/* Make sure compose rect fits inside output format */
+		max_rect.top = max_rect.left = 0;
+		max_rect.width = vin->format.width;
+		max_rect.height = vin->format.height;
+		v4l2_rect_map_inside(&r, &max_rect);
+
+		/*
+		 * Composing is done by adding a offset to the buffer address,
+		 * the HW wants this address to be aligned to HW_BUFFER_MASK.
+		 * Make sure the top and left values meets this requirement.
+		 */
+		while ((r.top * vin->format.bytesperline) & HW_BUFFER_MASK)
+			r.top--;
+
+		fmt = rvin_format_from_pixel(vin, vin->format.pixelformat);
+		while ((r.left * fmt->bpp) & HW_BUFFER_MASK)
+			r.left--;
+
+		vin->compose = s->r = r;
+
+		vin_dbg(vin, "Compose %dx%d@%d:%d in %dx%d\n",
+			r.width, r.height, r.left, r.top,
+			vin->format.width, vin->format.height);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* HW supports modifying configuration while running */
+	rvin_crop_scale_comp(vin);
+
+	return 0;
+}
+
+static int rvin_g_parm(struct file *file, void *priv,
+		       struct v4l2_streamparm *parm)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+	struct v4l2_subdev *sd = vin_to_source(vin);
+
+	return v4l2_g_parm_cap(&vin->vdev, sd, parm);
+}
+
+static int rvin_s_parm(struct file *file, void *priv,
+		       struct v4l2_streamparm *parm)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+	struct v4l2_subdev *sd = vin_to_source(vin);
+
+	return v4l2_s_parm_cap(&vin->vdev, sd, parm);
+}
+
+static int rvin_g_pixelaspect(struct file *file, void *priv,
+			      int type, struct v4l2_fract *f)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+	struct v4l2_subdev *sd = vin_to_source(vin);
+
+	if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	return v4l2_subdev_call(sd, video, g_pixelaspect, f);
+}
+
+static int rvin_enum_input(struct file *file, void *priv,
+			   struct v4l2_input *i)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+	struct v4l2_subdev *sd = vin_to_source(vin);
+	int ret;
+
+	if (i->index != 0)
+		return -EINVAL;
+
+	ret = v4l2_subdev_call(sd, video, g_input_status, &i->status);
+	if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV)
+		return ret;
+
+	i->type = V4L2_INPUT_TYPE_CAMERA;
+
+	if (v4l2_subdev_has_op(sd, pad, dv_timings_cap)) {
+		i->capabilities = V4L2_IN_CAP_DV_TIMINGS;
+		i->std = 0;
+	} else {
+		i->capabilities = V4L2_IN_CAP_STD;
+		i->std = vin->vdev.tvnorms;
+	}
+
+	strscpy(i->name, "Camera", sizeof(i->name));
+
+	return 0;
+}
+
+static int rvin_g_input(struct file *file, void *priv, unsigned int *i)
+{
+	*i = 0;
+	return 0;
+}
+
+static int rvin_s_input(struct file *file, void *priv, unsigned int i)
+{
+	if (i > 0)
+		return -EINVAL;
+	return 0;
+}
+
+static int rvin_querystd(struct file *file, void *priv, v4l2_std_id *a)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+	struct v4l2_subdev *sd = vin_to_source(vin);
+
+	return v4l2_subdev_call(sd, video, querystd, a);
+}
+
+static int rvin_s_std(struct file *file, void *priv, v4l2_std_id a)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+	int ret;
+
+	ret = v4l2_subdev_call(vin_to_source(vin), video, s_std, a);
+	if (ret < 0)
+		return ret;
+
+	vin->std = a;
+
+	/* Changing the standard will change the width/height */
+	return rvin_reset_format(vin);
+}
+
+static int rvin_g_std(struct file *file, void *priv, v4l2_std_id *a)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+
+	if (v4l2_subdev_has_op(vin_to_source(vin), pad, dv_timings_cap))
+		return -ENOIOCTLCMD;
+
+	*a = vin->std;
+
+	return 0;
+}
+
+static int rvin_subscribe_event(struct v4l2_fh *fh,
+				const struct v4l2_event_subscription *sub)
+{
+	switch (sub->type) {
+	case V4L2_EVENT_SOURCE_CHANGE:
+		return v4l2_event_subscribe(fh, sub, 4, NULL);
+	}
+	return v4l2_ctrl_subscribe_event(fh, sub);
+}
+
+static int rvin_enum_dv_timings(struct file *file, void *priv_fh,
+				struct v4l2_enum_dv_timings *timings)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+	struct v4l2_subdev *sd = vin_to_source(vin);
+	int ret;
+
+	if (timings->pad)
+		return -EINVAL;
+
+	timings->pad = vin->parallel.sink_pad;
+
+	ret = v4l2_subdev_call(sd, pad, enum_dv_timings, timings);
+
+	timings->pad = 0;
+
+	return ret;
+}
+
+static int rvin_s_dv_timings(struct file *file, void *priv_fh,
+			     struct v4l2_dv_timings *timings)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+	struct v4l2_subdev *sd = vin_to_source(vin);
+	int ret;
+
+	ret = v4l2_subdev_call(sd, video, s_dv_timings, timings);
+	if (ret)
+		return ret;
+
+	/* Changing the timings will change the width/height */
+	return rvin_reset_format(vin);
+}
+
+static int rvin_g_dv_timings(struct file *file, void *priv_fh,
+			     struct v4l2_dv_timings *timings)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+	struct v4l2_subdev *sd = vin_to_source(vin);
+
+	return v4l2_subdev_call(sd, video, g_dv_timings, timings);
+}
+
+static int rvin_query_dv_timings(struct file *file, void *priv_fh,
+				 struct v4l2_dv_timings *timings)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+	struct v4l2_subdev *sd = vin_to_source(vin);
+
+	return v4l2_subdev_call(sd, video, query_dv_timings, timings);
+}
+
+static int rvin_dv_timings_cap(struct file *file, void *priv_fh,
+			       struct v4l2_dv_timings_cap *cap)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+	struct v4l2_subdev *sd = vin_to_source(vin);
+	int ret;
+
+	if (cap->pad)
+		return -EINVAL;
+
+	cap->pad = vin->parallel.sink_pad;
+
+	ret = v4l2_subdev_call(sd, pad, dv_timings_cap, cap);
+
+	cap->pad = 0;
+
+	return ret;
+}
+
+static int rvin_g_edid(struct file *file, void *fh, struct v4l2_edid *edid)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+	struct v4l2_subdev *sd = vin_to_source(vin);
+	int ret;
+
+	if (edid->pad)
+		return -EINVAL;
+
+	edid->pad = vin->parallel.sink_pad;
+
+	ret = v4l2_subdev_call(sd, pad, get_edid, edid);
+
+	edid->pad = 0;
+
+	return ret;
+}
+
+static int rvin_s_edid(struct file *file, void *fh, struct v4l2_edid *edid)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+	struct v4l2_subdev *sd = vin_to_source(vin);
+	int ret;
+
+	if (edid->pad)
+		return -EINVAL;
+
+	edid->pad = vin->parallel.sink_pad;
+
+	ret = v4l2_subdev_call(sd, pad, set_edid, edid);
+
+	edid->pad = 0;
+
+	return ret;
+}
+
+static const struct v4l2_ioctl_ops rvin_ioctl_ops = {
+	.vidioc_querycap		= rvin_querycap,
+	.vidioc_try_fmt_vid_cap		= rvin_try_fmt_vid_cap,
+	.vidioc_g_fmt_vid_cap		= rvin_g_fmt_vid_cap,
+	.vidioc_s_fmt_vid_cap		= rvin_s_fmt_vid_cap,
+	.vidioc_enum_fmt_vid_cap	= rvin_enum_fmt_vid_cap,
+
+	.vidioc_g_selection		= rvin_g_selection,
+	.vidioc_s_selection		= rvin_s_selection,
+
+	.vidioc_g_parm			= rvin_g_parm,
+	.vidioc_s_parm			= rvin_s_parm,
+
+	.vidioc_g_pixelaspect		= rvin_g_pixelaspect,
+
+	.vidioc_enum_input		= rvin_enum_input,
+	.vidioc_g_input			= rvin_g_input,
+	.vidioc_s_input			= rvin_s_input,
+
+	.vidioc_dv_timings_cap		= rvin_dv_timings_cap,
+	.vidioc_enum_dv_timings		= rvin_enum_dv_timings,
+	.vidioc_g_dv_timings		= rvin_g_dv_timings,
+	.vidioc_s_dv_timings		= rvin_s_dv_timings,
+	.vidioc_query_dv_timings	= rvin_query_dv_timings,
+
+	.vidioc_g_edid			= rvin_g_edid,
+	.vidioc_s_edid			= rvin_s_edid,
+
+	.vidioc_querystd		= rvin_querystd,
+	.vidioc_g_std			= rvin_g_std,
+	.vidioc_s_std			= rvin_s_std,
+
+	.vidioc_reqbufs			= vb2_ioctl_reqbufs,
+	.vidioc_create_bufs		= vb2_ioctl_create_bufs,
+	.vidioc_querybuf		= vb2_ioctl_querybuf,
+	.vidioc_qbuf			= vb2_ioctl_qbuf,
+	.vidioc_dqbuf			= vb2_ioctl_dqbuf,
+	.vidioc_expbuf			= vb2_ioctl_expbuf,
+	.vidioc_prepare_buf		= vb2_ioctl_prepare_buf,
+	.vidioc_streamon		= vb2_ioctl_streamon,
+	.vidioc_streamoff		= vb2_ioctl_streamoff,
+
+	.vidioc_log_status		= v4l2_ctrl_log_status,
+	.vidioc_subscribe_event		= rvin_subscribe_event,
+	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,
+};
+
+/* -----------------------------------------------------------------------------
+ * V4L2 Media Controller
+ */
+
+static void rvin_mc_try_format(struct rvin_dev *vin,
+			       struct v4l2_pix_format *pix)
+{
+	/*
+	 * The V4L2 specification clearly documents the colorspace fields
+	 * as being set by drivers for capture devices. Using the values
+	 * supplied by userspace thus wouldn't comply with the API. Until
+	 * the API is updated force fixed values.
+	 */
+	pix->colorspace = RVIN_DEFAULT_COLORSPACE;
+	pix->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(pix->colorspace);
+	pix->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(pix->colorspace);
+	pix->quantization = V4L2_MAP_QUANTIZATION_DEFAULT(true, pix->colorspace,
+							  pix->ycbcr_enc);
+
+	rvin_format_align(vin, pix);
+}
+
+static int rvin_mc_try_fmt_vid_cap(struct file *file, void *priv,
+				   struct v4l2_format *f)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+
+	rvin_mc_try_format(vin, &f->fmt.pix);
+
+	return 0;
+}
+
+static int rvin_mc_s_fmt_vid_cap(struct file *file, void *priv,
+				 struct v4l2_format *f)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+
+	if (vb2_is_busy(&vin->queue))
+		return -EBUSY;
+
+	rvin_mc_try_format(vin, &f->fmt.pix);
+
+	vin->format = f->fmt.pix;
+
+	vin->crop.top = 0;
+	vin->crop.left = 0;
+	vin->crop.width = vin->format.width;
+	vin->crop.height = vin->format.height;
+	vin->compose = vin->crop;
+
+	return 0;
+}
+
+static const struct v4l2_ioctl_ops rvin_mc_ioctl_ops = {
+	.vidioc_querycap		= rvin_querycap,
+	.vidioc_try_fmt_vid_cap		= rvin_mc_try_fmt_vid_cap,
+	.vidioc_g_fmt_vid_cap		= rvin_g_fmt_vid_cap,
+	.vidioc_s_fmt_vid_cap		= rvin_mc_s_fmt_vid_cap,
+	.vidioc_enum_fmt_vid_cap	= rvin_enum_fmt_vid_cap,
+
+	.vidioc_g_selection		= rvin_g_selection,
+	.vidioc_s_selection		= rvin_s_selection,
+
+	.vidioc_reqbufs			= vb2_ioctl_reqbufs,
+	.vidioc_create_bufs		= vb2_ioctl_create_bufs,
+	.vidioc_querybuf		= vb2_ioctl_querybuf,
+	.vidioc_qbuf			= vb2_ioctl_qbuf,
+	.vidioc_dqbuf			= vb2_ioctl_dqbuf,
+	.vidioc_expbuf			= vb2_ioctl_expbuf,
+	.vidioc_prepare_buf		= vb2_ioctl_prepare_buf,
+	.vidioc_streamon		= vb2_ioctl_streamon,
+	.vidioc_streamoff		= vb2_ioctl_streamoff,
+
+	.vidioc_log_status		= v4l2_ctrl_log_status,
+	.vidioc_subscribe_event		= rvin_subscribe_event,
+	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,
+};
+
+/* -----------------------------------------------------------------------------
+ * File Operations
+ */
+
+static int rvin_power_parallel(struct rvin_dev *vin, bool on)
+{
+	struct v4l2_subdev *sd = vin_to_source(vin);
+	int power = on ? 1 : 0;
+	int ret;
+
+	ret = v4l2_subdev_call(sd, core, s_power, power);
+	if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV)
+		return ret;
+
+	return 0;
+}
+
+static int rvin_open(struct file *file)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+	int ret;
+
+	ret = pm_runtime_resume_and_get(vin->dev);
+	if (ret < 0)
+		return ret;
+
+	ret = mutex_lock_interruptible(&vin->lock);
+	if (ret)
+		goto err_pm;
+
+	file->private_data = vin;
+
+	ret = v4l2_fh_open(file);
+	if (ret)
+		goto err_unlock;
+
+	if (vin->info->use_mc)
+		ret = v4l2_pipeline_pm_get(&vin->vdev.entity);
+	else if (v4l2_fh_is_singular_file(file))
+		ret = rvin_power_parallel(vin, true);
+
+	if (ret < 0)
+		goto err_open;
+
+	ret = v4l2_ctrl_handler_setup(&vin->ctrl_handler);
+	if (ret)
+		goto err_power;
+
+	mutex_unlock(&vin->lock);
+
+	return 0;
+err_power:
+	if (vin->info->use_mc)
+		v4l2_pipeline_pm_put(&vin->vdev.entity);
+	else if (v4l2_fh_is_singular_file(file))
+		rvin_power_parallel(vin, false);
+err_open:
+	v4l2_fh_release(file);
+err_unlock:
+	mutex_unlock(&vin->lock);
+err_pm:
+	pm_runtime_put(vin->dev);
+
+	return ret;
+}
+
+static int rvin_release(struct file *file)
+{
+	struct rvin_dev *vin = video_drvdata(file);
+	bool fh_singular;
+	int ret;
+
+	mutex_lock(&vin->lock);
+
+	/* Save the singular status before we call the clean-up helper */
+	fh_singular = v4l2_fh_is_singular_file(file);
+
+	/* the release helper will cleanup any on-going streaming */
+	ret = _vb2_fop_release(file, NULL);
+
+	if (vin->info->use_mc) {
+		v4l2_pipeline_pm_put(&vin->vdev.entity);
+	} else {
+		if (fh_singular)
+			rvin_power_parallel(vin, false);
+	}
+
+	mutex_unlock(&vin->lock);
+
+	pm_runtime_put(vin->dev);
+
+	return ret;
+}
+
+static const struct v4l2_file_operations rvin_fops = {
+	.owner		= THIS_MODULE,
+	.unlocked_ioctl	= video_ioctl2,
+	.open		= rvin_open,
+	.release	= rvin_release,
+	.poll		= vb2_fop_poll,
+	.mmap		= vb2_fop_mmap,
+	.read		= vb2_fop_read,
+};
+
+void rvin_v4l2_unregister(struct rvin_dev *vin)
+{
+	if (!video_is_registered(&vin->vdev))
+		return;
+
+	v4l2_info(&vin->v4l2_dev, "Removing %s\n",
+		  video_device_node_name(&vin->vdev));
+
+	/* Checks internally if vdev have been init or not */
+	video_unregister_device(&vin->vdev);
+}
+
+static void rvin_notify_video_device(struct rvin_dev *vin,
+				     unsigned int notification, void *arg)
+{
+	switch (notification) {
+	case V4L2_DEVICE_NOTIFY_EVENT:
+		v4l2_event_queue(&vin->vdev, arg);
+		break;
+	default:
+		break;
+	}
+}
+
+static void rvin_notify(struct v4l2_subdev *sd,
+			unsigned int notification, void *arg)
+{
+	struct v4l2_subdev *remote;
+	struct rvin_group *group;
+	struct media_pad *pad;
+	struct rvin_dev *vin =
+		container_of(sd->v4l2_dev, struct rvin_dev, v4l2_dev);
+	unsigned int i;
+
+	/* If no media controller, no need to route the event. */
+	if (!vin->info->use_mc) {
+		rvin_notify_video_device(vin, notification, arg);
+		return;
+	}
+
+	group = vin->group;
+
+	for (i = 0; i < RCAR_VIN_NUM; i++) {
+		vin = group->vin[i];
+		if (!vin)
+			continue;
+
+		pad = media_pad_remote_pad_first(&vin->pad);
+		if (!pad)
+			continue;
+
+		remote = media_entity_to_v4l2_subdev(pad->entity);
+		if (remote != sd)
+			continue;
+
+		rvin_notify_video_device(vin, notification, arg);
+	}
+}
+
+int rvin_v4l2_register(struct rvin_dev *vin)
+{
+	struct video_device *vdev = &vin->vdev;
+	int ret;
+
+	vin->v4l2_dev.notify = rvin_notify;
+
+	/* video node */
+	vdev->v4l2_dev = &vin->v4l2_dev;
+	vdev->queue = &vin->queue;
+	snprintf(vdev->name, sizeof(vdev->name), "VIN%u output", vin->id);
+	vdev->release = video_device_release_empty;
+	vdev->lock = &vin->lock;
+	vdev->fops = &rvin_fops;
+	vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING |
+		V4L2_CAP_READWRITE;
+
+	/* Set a default format */
+	vin->format.pixelformat	= RVIN_DEFAULT_FORMAT;
+	vin->format.width = RVIN_DEFAULT_WIDTH;
+	vin->format.height = RVIN_DEFAULT_HEIGHT;
+	vin->format.field = RVIN_DEFAULT_FIELD;
+	vin->format.colorspace = RVIN_DEFAULT_COLORSPACE;
+
+	if (vin->info->use_mc) {
+		vdev->device_caps |= V4L2_CAP_IO_MC;
+		vdev->ioctl_ops = &rvin_mc_ioctl_ops;
+	} else {
+		vdev->ioctl_ops = &rvin_ioctl_ops;
+		rvin_reset_format(vin);
+	}
+
+	rvin_format_align(vin, &vin->format);
+
+	ret = video_register_device(&vin->vdev, VFL_TYPE_VIDEO, -1);
+	if (ret) {
+		vin_err(vin, "Failed to register video device\n");
+		return ret;
+	}
+
+	video_set_drvdata(&vin->vdev, vin);
+
+	v4l2_info(&vin->v4l2_dev, "Device registered as %s\n",
+		  video_device_node_name(&vin->vdev));
+
+	return ret;
+}
diff --git a/drivers/media/platform/renesas/rcar-vin/rcar-vin.h b/drivers/media/platform/renesas/rcar-vin/rcar-vin.h
new file mode 100644
index 000000000..792336dad
--- /dev/null
+++ b/drivers/media/platform/renesas/rcar-vin/rcar-vin.h
@@ -0,0 +1,320 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Driver for Renesas R-Car VIN
+ *
+ * Copyright (C) 2016 Renesas Electronics Corp.
+ * Copyright (C) 2011-2013 Renesas Solutions Corp.
+ * Copyright (C) 2013 Cogent Embedded, Inc., <source@cogentembedded.com>
+ * Copyright (C) 2008 Magnus Damm
+ *
+ * Based on the soc-camera rcar_vin driver
+ */
+
+#ifndef __RCAR_VIN__
+#define __RCAR_VIN__
+
+#include <linux/kref.h>
+
+#include <media/v4l2-async.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-dev.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-fwnode.h>
+#include <media/videobuf2-v4l2.h>
+
+/* Number of HW buffers */
+#define HW_BUFFER_NUM 3
+
+/* Address alignment mask for HW buffers */
+#define HW_BUFFER_MASK 0x7f
+
+/* Max number on VIN instances that can be in a system */
+#define RCAR_VIN_NUM 32
+
+struct rvin_dev;
+struct rvin_group;
+
+enum model_id {
+	RCAR_H1,
+	RCAR_M1,
+	RCAR_GEN2,
+	RCAR_GEN3,
+};
+
+enum rvin_csi_id {
+	RVIN_CSI20,
+	RVIN_CSI21,
+	RVIN_CSI40,
+	RVIN_CSI41,
+	RVIN_CSI_MAX,
+};
+
+enum rvin_isp_id {
+	RVIN_ISP0,
+	RVIN_ISP1,
+	RVIN_ISP2,
+	RVIN_ISP4,
+	RVIN_ISP_MAX,
+};
+
+#define RVIN_REMOTES_MAX \
+	(((unsigned int)RVIN_CSI_MAX) > ((unsigned int)RVIN_ISP_MAX) ? \
+	 RVIN_CSI_MAX : RVIN_ISP_MAX)
+
+/**
+ * enum rvin_dma_state - DMA states
+ * @STOPPED:   No operation in progress
+ * @STARTING:  Capture starting up
+ * @RUNNING:   Operation in progress have buffers
+ * @STOPPING:  Stopping operation
+ * @SUSPENDED: Capture is suspended
+ */
+enum rvin_dma_state {
+	STOPPED = 0,
+	STARTING,
+	RUNNING,
+	STOPPING,
+	SUSPENDED,
+};
+
+/**
+ * enum rvin_buffer_type
+ *
+ * Describes how a buffer is given to the hardware. To be able
+ * to capture SEQ_TB/BT it's needed to capture to the same vb2
+ * buffer twice so the type of buffer needs to be kept.
+ *
+ * @FULL: One capture fills the whole vb2 buffer
+ * @HALF_TOP: One capture fills the top half of the vb2 buffer
+ * @HALF_BOTTOM: One capture fills the bottom half of the vb2 buffer
+ */
+enum rvin_buffer_type {
+	FULL,
+	HALF_TOP,
+	HALF_BOTTOM,
+};
+
+/**
+ * struct rvin_video_format - Data format stored in memory
+ * @fourcc:	Pixelformat
+ * @bpp:	Bytes per pixel
+ */
+struct rvin_video_format {
+	u32 fourcc;
+	u8 bpp;
+};
+
+/**
+ * struct rvin_parallel_entity - Parallel video input endpoint descriptor
+ * @asc:	async connection descriptor for async framework
+ * @subdev:	subdevice matched using async framework
+ * @mbus_type:	media bus type
+ * @bus:	media bus parallel configuration
+ * @source_pad:	source pad of remote subdevice
+ * @sink_pad:	sink pad of remote subdevice
+ *
+ */
+struct rvin_parallel_entity {
+	struct v4l2_async_connection *asc;
+	struct v4l2_subdev *subdev;
+
+	enum v4l2_mbus_type mbus_type;
+	struct v4l2_mbus_config_parallel bus;
+
+	unsigned int source_pad;
+	unsigned int sink_pad;
+};
+
+/**
+ * struct rvin_group_route - describes a route from a channel of a
+ *	CSI-2 receiver to a VIN
+ *
+ * @master:	VIN group master ID.
+ * @csi:	CSI-2 receiver ID.
+ * @chsel:	CHSEL register values that connects VIN group to CSI-2.
+ *
+ * .. note::
+ *	Each R-Car CSI-2 receiver has four output channels facing the VIN
+ *	devices, each channel can carry one CSI-2 Virtual Channel (VC).
+ *	There is no correlation between channel number and CSI-2 VC. It's
+ *	up to the CSI-2 receiver driver to configure which VC is output
+ *	on which channel, the VIN devices only care about output channels.
+ */
+struct rvin_group_route {
+	unsigned int master;
+	enum rvin_csi_id csi;
+	unsigned int chsel;
+};
+
+/**
+ * struct rvin_info - Information about the particular VIN implementation
+ * @model:		VIN model
+ * @use_mc:		use media controller instead of controlling subdevice
+ * @use_isp:		the VIN is connected to the ISP and not to the CSI-2
+ * @nv12:		support outputing NV12 pixel format
+ * @max_width:		max input width the VIN supports
+ * @max_height:		max input height the VIN supports
+ * @routes:		list of possible routes from the CSI-2 recivers to
+ *			all VINs. The list mush be NULL terminated.
+ * @scaler:		Optional scaler
+ */
+struct rvin_info {
+	enum model_id model;
+	bool use_mc;
+	bool use_isp;
+	bool nv12;
+
+	unsigned int max_width;
+	unsigned int max_height;
+	const struct rvin_group_route *routes;
+	void (*scaler)(struct rvin_dev *vin);
+};
+
+/**
+ * struct rvin_dev - Renesas VIN device structure
+ * @dev:		(OF) device
+ * @base:		device I/O register space remapped to virtual memory
+ * @info:		info about VIN instance
+ *
+ * @vdev:		V4L2 video device associated with VIN
+ * @v4l2_dev:		V4L2 device
+ * @ctrl_handler:	V4L2 control handler
+ * @notifier:		V4L2 asynchronous subdevs notifier
+ *
+ * @parallel:		parallel input subdevice descriptor
+ *
+ * @group:		Gen3 CSI group
+ * @id:			Gen3 group id for this VIN
+ * @pad:		media pad for the video device entity
+ *
+ * @lock:		protects @queue
+ * @queue:		vb2 buffers queue
+ * @scratch:		cpu address for scratch buffer
+ * @scratch_phys:	physical address of the scratch buffer
+ *
+ * @qlock:		protects @buf_hw, @buf_list, @sequence and @state
+ * @buf_hw:		Keeps track of buffers given to HW slot
+ * @buf_list:		list of queued buffers
+ * @sequence:		V4L2 buffers sequence number
+ * @state:		keeps track of operation state
+ *
+ * @is_csi:		flag to mark the VIN as using a CSI-2 subdevice
+ * @chsel:		Cached value of the current CSI-2 channel selection
+ *
+ * @mbus_code:		media bus format code
+ * @format:		active V4L2 pixel format
+ *
+ * @crop:		active cropping
+ * @compose:		active composing
+ * @scaler:		Optional scaler
+ * @std:		active video standard of the video source
+ *
+ * @alpha:		Alpha component to fill in for supported pixel formats
+ */
+struct rvin_dev {
+	struct device *dev;
+	void __iomem *base;
+	const struct rvin_info *info;
+
+	struct video_device vdev;
+	struct v4l2_device v4l2_dev;
+	struct v4l2_ctrl_handler ctrl_handler;
+	struct v4l2_async_notifier notifier;
+
+	struct rvin_parallel_entity parallel;
+
+	struct rvin_group *group;
+	unsigned int id;
+	struct media_pad pad;
+
+	struct mutex lock;
+	struct vb2_queue queue;
+	void *scratch;
+	dma_addr_t scratch_phys;
+
+	spinlock_t qlock;
+	struct {
+		struct vb2_v4l2_buffer *buffer;
+		enum rvin_buffer_type type;
+		dma_addr_t phys;
+	} buf_hw[HW_BUFFER_NUM];
+	struct list_head buf_list;
+	unsigned int sequence;
+	enum rvin_dma_state state;
+
+	bool is_csi;
+	unsigned int chsel;
+
+	u32 mbus_code;
+	struct v4l2_pix_format format;
+
+	struct v4l2_rect crop;
+	struct v4l2_rect compose;
+	void (*scaler)(struct rvin_dev *vin);
+	v4l2_std_id std;
+
+	unsigned int alpha;
+};
+
+#define vin_to_source(vin)		((vin)->parallel.subdev)
+
+/* Debug */
+#define vin_dbg(d, fmt, arg...)		dev_dbg(d->dev, fmt, ##arg)
+#define vin_info(d, fmt, arg...)	dev_info(d->dev, fmt, ##arg)
+#define vin_warn(d, fmt, arg...)	dev_warn(d->dev, fmt, ##arg)
+#define vin_err(d, fmt, arg...)		dev_err(d->dev, fmt, ##arg)
+
+/**
+ * struct rvin_group - VIN CSI2 group information
+ * @refcount:		number of VIN instances using the group
+ *
+ * @mdev:		media device which represents the group
+ *
+ * @lock:		protects the count, notifier, vin and csi members
+ * @count:		number of enabled VIN instances found in DT
+ * @notifier:		group notifier for CSI-2 async connections
+ * @vin:		VIN instances which are part of the group
+ * @link_setup:		Callback to create all links for the media graph
+ * @remotes:		array of pairs of async connection and subdev pointers
+ *			to all remote subdevices.
+ */
+struct rvin_group {
+	struct kref refcount;
+
+	struct media_device mdev;
+
+	struct mutex lock;
+	unsigned int count;
+	struct v4l2_async_notifier notifier;
+	struct rvin_dev *vin[RCAR_VIN_NUM];
+
+	int (*link_setup)(struct rvin_dev *vin);
+
+	struct {
+		struct v4l2_async_connection *asc;
+		struct v4l2_subdev *subdev;
+	} remotes[RVIN_REMOTES_MAX];
+};
+
+int rvin_dma_register(struct rvin_dev *vin, int irq);
+void rvin_dma_unregister(struct rvin_dev *vin);
+
+int rvin_v4l2_register(struct rvin_dev *vin);
+void rvin_v4l2_unregister(struct rvin_dev *vin);
+
+const struct rvin_video_format *rvin_format_from_pixel(struct rvin_dev *vin,
+						       u32 pixelformat);
+
+
+/* Cropping, composing and scaling */
+void rvin_scaler_gen2(struct rvin_dev *vin);
+void rvin_scaler_gen3(struct rvin_dev *vin);
+void rvin_crop_scale_comp(struct rvin_dev *vin);
+
+int rvin_set_channel_routing(struct rvin_dev *vin, u8 chsel);
+void rvin_set_alpha(struct rvin_dev *vin, unsigned int alpha);
+
+int rvin_start_streaming(struct rvin_dev *vin);
+void rvin_stop_streaming(struct rvin_dev *vin);
+
+#endif