diff --git a/drivers/staging/media/imx/Makefile b/drivers/staging/media/imx/Makefile
index 1f01520..878a126 100644
--- a/drivers/staging/media/imx/Makefile
+++ b/drivers/staging/media/imx/Makefile
@@ -1,9 +1,11 @@
 imx-media-objs := imx-media-dev.o imx-media-internal-sd.o imx-media-of.o
 imx-media-common-objs := imx-media-utils.o imx-media-fim.o
+imx-media-ic-objs := imx-ic-common.o imx-ic-prp.o imx-ic-prpencvf.o
 
 obj-$(CONFIG_VIDEO_IMX_MEDIA) += imx-media.o
 obj-$(CONFIG_VIDEO_IMX_MEDIA) += imx-media-common.o
 obj-$(CONFIG_VIDEO_IMX_MEDIA) += imx-media-capture.o
 obj-$(CONFIG_VIDEO_IMX_MEDIA) += imx-media-vdic.o
+obj-$(CONFIG_VIDEO_IMX_MEDIA) += imx-media-ic.o
 
 obj-$(CONFIG_VIDEO_IMX_CSI) += imx-media-csi.o
diff --git a/drivers/staging/media/imx/imx-ic-common.c b/drivers/staging/media/imx/imx-ic-common.c
new file mode 100644
index 0000000..cfdd490
--- /dev/null
+++ b/drivers/staging/media/imx/imx-ic-common.c
@@ -0,0 +1,113 @@
+/*
+ * V4L2 Image Converter Subdev for Freescale i.MX5/6 SOC
+ *
+ * Copyright (c) 2014-2016 Mentor Graphics Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-subdev.h>
+#include "imx-media.h"
+#include "imx-ic.h"
+
+#define IC_TASK_PRP IC_NUM_TASKS
+#define IC_NUM_OPS  (IC_NUM_TASKS + 1)
+
+static struct imx_ic_ops *ic_ops[IC_NUM_OPS] = {
+	[IC_TASK_PRP]            = &imx_ic_prp_ops,
+	[IC_TASK_ENCODER]        = &imx_ic_prpencvf_ops,
+	[IC_TASK_VIEWFINDER]     = &imx_ic_prpencvf_ops,
+};
+
+static int imx_ic_probe(struct platform_device *pdev)
+{
+	struct imx_media_internal_sd_platformdata *pdata;
+	struct imx_ic_priv *priv;
+	int ret;
+
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, &priv->sd);
+	priv->dev = &pdev->dev;
+
+	/* get our ipu_id, grp_id and IC task id */
+	pdata = priv->dev->platform_data;
+	priv->ipu_id = pdata->ipu_id;
+	switch (pdata->grp_id) {
+	case IMX_MEDIA_GRP_ID_IC_PRP:
+		priv->task_id = IC_TASK_PRP;
+		break;
+	case IMX_MEDIA_GRP_ID_IC_PRPENC:
+		priv->task_id = IC_TASK_ENCODER;
+		break;
+	case IMX_MEDIA_GRP_ID_IC_PRPVF:
+		priv->task_id = IC_TASK_VIEWFINDER;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	v4l2_subdev_init(&priv->sd, ic_ops[priv->task_id]->subdev_ops);
+	v4l2_set_subdevdata(&priv->sd, priv);
+	priv->sd.internal_ops = ic_ops[priv->task_id]->internal_ops;
+	priv->sd.entity.ops = ic_ops[priv->task_id]->entity_ops;
+	priv->sd.entity.function = MEDIA_ENT_F_PROC_VIDEO_SCALER;
+	priv->sd.dev = &pdev->dev;
+	priv->sd.owner = THIS_MODULE;
+	priv->sd.flags = V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS;
+	priv->sd.grp_id = pdata->grp_id;
+	strncpy(priv->sd.name, pdata->sd_name, sizeof(priv->sd.name));
+
+	ret = ic_ops[priv->task_id]->init(priv);
+	if (ret)
+		return ret;
+
+	ret = v4l2_async_register_subdev(&priv->sd);
+	if (ret)
+		ic_ops[priv->task_id]->remove(priv);
+
+	return ret;
+}
+
+static int imx_ic_remove(struct platform_device *pdev)
+{
+	struct v4l2_subdev *sd = platform_get_drvdata(pdev);
+	struct imx_ic_priv *priv = container_of(sd, struct imx_ic_priv, sd);
+
+	v4l2_info(sd, "Removing\n");
+
+	ic_ops[priv->task_id]->remove(priv);
+
+	v4l2_async_unregister_subdev(sd);
+	media_entity_cleanup(&sd->entity);
+
+	return 0;
+}
+
+static const struct platform_device_id imx_ic_ids[] = {
+	{ .name = "imx-ipuv3-ic" },
+	{ },
+};
+MODULE_DEVICE_TABLE(platform, imx_ic_ids);
+
+static struct platform_driver imx_ic_driver = {
+	.probe = imx_ic_probe,
+	.remove = imx_ic_remove,
+	.id_table = imx_ic_ids,
+	.driver = {
+		.name = "imx-ipuv3-ic",
+	},
+};
+module_platform_driver(imx_ic_driver);
+
+MODULE_DESCRIPTION("i.MX IC subdev driver");
+MODULE_AUTHOR("Steve Longerbeam <steve_longerbeam@mentor.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:imx-ipuv3-ic");
diff --git a/drivers/staging/media/imx/imx-ic-prp.c b/drivers/staging/media/imx/imx-ic-prp.c
new file mode 100644
index 0000000..d0f4e82
--- /dev/null
+++ b/drivers/staging/media/imx/imx-ic-prp.c
@@ -0,0 +1,434 @@
+/*
+ * V4L2 Capture IC Preprocess Subdev for Freescale i.MX5/6 SOC
+ *
+ * This subdevice handles capture of video frames from the CSI or VDIC,
+ * which are routed directly to the Image Converter preprocess tasks,
+ * for resizing, colorspace conversion, and rotation.
+ *
+ * Copyright (c) 2012-2017 Mentor Graphics Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/timer.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-subdev.h>
+#include <media/imx.h>
+#include "imx-media.h"
+#include "imx-ic.h"
+
+/*
+ * Min/Max supported width and heights.
+ */
+#define MIN_W       176
+#define MIN_H       144
+#define MAX_W      4096
+#define MAX_H      4096
+#define W_ALIGN    4 /* multiple of 16 pixels */
+#define H_ALIGN    1 /* multiple of 2 lines */
+#define S_ALIGN    1 /* multiple of 2 */
+
+struct prp_priv {
+	struct imx_media_dev *md;
+	struct imx_ic_priv *ic_priv;
+	struct media_pad pad[PRP_NUM_PADS];
+
+	/* lock to protect all members below */
+	struct mutex lock;
+
+	/* IPU units we require */
+	struct ipu_soc *ipu;
+
+	struct v4l2_subdev *src_sd;
+	struct v4l2_subdev *sink_sd_prpenc;
+	struct v4l2_subdev *sink_sd_prpvf;
+
+	/* the CSI id at link validate */
+	int csi_id;
+
+	struct v4l2_mbus_framefmt format_mbus[PRP_NUM_PADS];
+	const struct imx_media_pixfmt *cc[PRP_NUM_PADS];
+
+	bool stream_on; /* streaming is on */
+};
+
+static inline struct prp_priv *sd_to_priv(struct v4l2_subdev *sd)
+{
+	struct imx_ic_priv *ic_priv = v4l2_get_subdevdata(sd);
+
+	return ic_priv->prp_priv;
+}
+
+static int prp_start(struct prp_priv *priv)
+{
+	struct imx_ic_priv *ic_priv = priv->ic_priv;
+
+	priv->ipu = priv->md->ipu[ic_priv->ipu_id];
+
+	/* set IC to receive from CSI or VDI depending on source */
+	if (priv->src_sd->grp_id & IMX_MEDIA_GRP_ID_VDIC)
+		ipu_set_ic_src_mux(priv->ipu, 0, true);
+	else
+		ipu_set_ic_src_mux(priv->ipu, priv->csi_id, false);
+
+	return 0;
+}
+
+static void prp_stop(struct prp_priv *priv)
+{
+}
+
+static int prp_enum_mbus_code(struct v4l2_subdev *sd,
+			      struct v4l2_subdev_pad_config *cfg,
+			      struct v4l2_subdev_mbus_code_enum *code)
+{
+	if (code->pad >= PRP_NUM_PADS)
+		return -EINVAL;
+
+	return imx_media_enum_ipu_format(NULL, &code->code, code->index, true);
+}
+
+static struct v4l2_mbus_framefmt *
+__prp_get_fmt(struct prp_priv *priv, struct v4l2_subdev_pad_config *cfg,
+	      unsigned int pad, enum v4l2_subdev_format_whence which)
+{
+	struct imx_ic_priv *ic_priv = priv->ic_priv;
+
+	if (which == V4L2_SUBDEV_FORMAT_TRY)
+		return v4l2_subdev_get_try_format(&ic_priv->sd, cfg, pad);
+	else
+		return &priv->format_mbus[pad];
+}
+
+/*
+ * V4L2 subdev operations.
+ */
+
+static int prp_get_fmt(struct v4l2_subdev *sd,
+		       struct v4l2_subdev_pad_config *cfg,
+		       struct v4l2_subdev_format *sdformat)
+{
+	struct prp_priv *priv = sd_to_priv(sd);
+	struct v4l2_mbus_framefmt *fmt;
+	int ret = 0;
+
+	if (sdformat->pad >= PRP_NUM_PADS)
+		return -EINVAL;
+
+	mutex_lock(&priv->lock);
+
+	fmt = __prp_get_fmt(priv, cfg, sdformat->pad, sdformat->which);
+	if (!fmt) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	sdformat->format = *fmt;
+out:
+	mutex_unlock(&priv->lock);
+	return ret;
+}
+
+static int prp_set_fmt(struct v4l2_subdev *sd,
+		       struct v4l2_subdev_pad_config *cfg,
+		       struct v4l2_subdev_format *sdformat)
+{
+	struct prp_priv *priv = sd_to_priv(sd);
+	const struct imx_media_pixfmt *cc = NULL;
+	struct v4l2_mbus_framefmt *infmt;
+	int ret = 0;
+	u32 code;
+
+	if (sdformat->pad >= PRP_NUM_PADS)
+		return -EINVAL;
+
+	mutex_lock(&priv->lock);
+
+	if (priv->stream_on) {
+		ret = -EBUSY;
+		goto out;
+	}
+
+	cc = imx_media_find_ipu_format(0, sdformat->format.code, true);
+	if (!cc) {
+		imx_media_enum_ipu_format(NULL, &code, 0, true);
+		cc = imx_media_find_ipu_format(0, code, true);
+		sdformat->format.code = cc->codes[0];
+	}
+
+	v4l_bound_align_image(&sdformat->format.width, MIN_W, MAX_W,
+			      W_ALIGN, &sdformat->format.height,
+			      MIN_H, MAX_H, H_ALIGN, S_ALIGN);
+
+	/* Output pads mirror input pad */
+	if (sdformat->pad == PRP_SRC_PAD_PRPENC ||
+	    sdformat->pad == PRP_SRC_PAD_PRPVF) {
+		infmt = __prp_get_fmt(priv, cfg, PRP_SINK_PAD,
+				      sdformat->which);
+		sdformat->format = *infmt;
+	}
+
+	if (sdformat->which == V4L2_SUBDEV_FORMAT_TRY) {
+		cfg->try_fmt = sdformat->format;
+	} else {
+		priv->format_mbus[sdformat->pad] = sdformat->format;
+		priv->cc[sdformat->pad] = cc;
+	}
+
+out:
+	mutex_unlock(&priv->lock);
+	return ret;
+}
+
+static int prp_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 imx_ic_priv *ic_priv = v4l2_get_subdevdata(sd);
+	struct prp_priv *priv = ic_priv->prp_priv;
+	struct v4l2_subdev *remote_sd;
+	int ret = 0;
+
+	dev_dbg(ic_priv->dev, "link setup %s -> %s", remote->entity->name,
+		local->entity->name);
+
+	remote_sd = media_entity_to_v4l2_subdev(remote->entity);
+
+	mutex_lock(&priv->lock);
+
+	if (local->flags & MEDIA_PAD_FL_SINK) {
+		if (flags & MEDIA_LNK_FL_ENABLED) {
+			if (priv->src_sd) {
+				ret = -EBUSY;
+				goto out;
+			}
+			if (priv->sink_sd_prpenc && (remote_sd->grp_id &
+						     IMX_MEDIA_GRP_ID_VDIC)) {
+				ret = -EINVAL;
+				goto out;
+			}
+			priv->src_sd = remote_sd;
+		} else {
+			priv->src_sd = NULL;
+		}
+
+		goto out;
+	}
+
+	/* this is a source pad */
+	if (flags & MEDIA_LNK_FL_ENABLED) {
+		switch (local->index) {
+		case PRP_SRC_PAD_PRPENC:
+			if (priv->sink_sd_prpenc) {
+				ret = -EBUSY;
+				goto out;
+			}
+			if (priv->src_sd && (priv->src_sd->grp_id &
+					     IMX_MEDIA_GRP_ID_VDIC)) {
+				ret = -EINVAL;
+				goto out;
+			}
+			priv->sink_sd_prpenc = remote_sd;
+			break;
+		case PRP_SRC_PAD_PRPVF:
+			if (priv->sink_sd_prpvf) {
+				ret = -EBUSY;
+				goto out;
+			}
+			priv->sink_sd_prpvf = remote_sd;
+			break;
+		default:
+			ret = -EINVAL;
+		}
+	} else {
+		switch (local->index) {
+		case PRP_SRC_PAD_PRPENC:
+			priv->sink_sd_prpenc = NULL;
+			break;
+		case PRP_SRC_PAD_PRPVF:
+			priv->sink_sd_prpvf = NULL;
+			break;
+		default:
+			ret = -EINVAL;
+		}
+	}
+
+out:
+	mutex_unlock(&priv->lock);
+	return ret;
+}
+
+static int prp_link_validate(struct v4l2_subdev *sd,
+			     struct media_link *link,
+			     struct v4l2_subdev_format *source_fmt,
+			     struct v4l2_subdev_format *sink_fmt)
+{
+	struct imx_ic_priv *ic_priv = v4l2_get_subdevdata(sd);
+	struct prp_priv *priv = ic_priv->prp_priv;
+	struct imx_media_subdev *csi;
+	int ret;
+
+	ret = v4l2_subdev_link_validate_default(sd, link,
+						source_fmt, sink_fmt);
+	if (ret)
+		return ret;
+
+	csi = imx_media_find_pipeline_subdev(priv->md, &ic_priv->sd.entity,
+					     IMX_MEDIA_GRP_ID_CSI);
+	if (IS_ERR(csi))
+		csi = NULL;
+
+	mutex_lock(&priv->lock);
+
+	if (priv->src_sd->grp_id & IMX_MEDIA_GRP_ID_VDIC) {
+		/*
+		 * the ->PRPENC link cannot be enabled if the source
+		 * is the VDIC
+		 */
+		if (priv->sink_sd_prpenc)
+			ret = -EINVAL;
+		goto out;
+	} else {
+		/* the source is a CSI */
+		if (!csi) {
+			ret = -EINVAL;
+			goto out;
+		}
+
+		switch (csi->sd->grp_id) {
+		case IMX_MEDIA_GRP_ID_CSI0:
+			priv->csi_id = 0;
+			break;
+		case IMX_MEDIA_GRP_ID_CSI1:
+			priv->csi_id = 1;
+			break;
+		default:
+			ret = -EINVAL;
+		}
+	}
+
+out:
+	mutex_unlock(&priv->lock);
+	return ret;
+}
+
+static int prp_s_stream(struct v4l2_subdev *sd, int enable)
+{
+	struct imx_ic_priv *ic_priv = v4l2_get_subdevdata(sd);
+	struct prp_priv *priv = ic_priv->prp_priv;
+	int ret = 0;
+
+	mutex_lock(&priv->lock);
+
+	if (!priv->src_sd || (!priv->sink_sd_prpenc && !priv->sink_sd_prpvf)) {
+		ret = -EPIPE;
+		goto out;
+	}
+
+	dev_dbg(ic_priv->dev, "stream %s\n", enable ? "ON" : "OFF");
+
+	if (enable && !priv->stream_on)
+		ret = prp_start(priv);
+	else if (!enable && priv->stream_on)
+		prp_stop(priv);
+
+	if (!ret)
+		priv->stream_on = enable;
+out:
+	mutex_unlock(&priv->lock);
+	return ret;
+}
+
+/*
+ * retrieve our pads parsed from the OF graph by the media device
+ */
+static int prp_registered(struct v4l2_subdev *sd)
+{
+	struct prp_priv *priv = sd_to_priv(sd);
+	int i, ret;
+	u32 code;
+
+	/* get media device */
+	priv->md = dev_get_drvdata(sd->v4l2_dev->dev);
+
+	for (i = 0; i < PRP_NUM_PADS; i++) {
+		priv->pad[i].flags = (i == PRP_SINK_PAD) ?
+			MEDIA_PAD_FL_SINK : MEDIA_PAD_FL_SOURCE;
+
+		/* set a default mbus format  */
+		imx_media_enum_ipu_format(NULL, &code, 0, true);
+		ret = imx_media_init_mbus_fmt(&priv->format_mbus[i],
+					      640, 480, code, V4L2_FIELD_NONE,
+					      &priv->cc[i]);
+		if (ret)
+			return ret;
+	}
+
+	return media_entity_pads_init(&sd->entity, PRP_NUM_PADS, priv->pad);
+}
+
+static struct v4l2_subdev_pad_ops prp_pad_ops = {
+	.enum_mbus_code = prp_enum_mbus_code,
+	.get_fmt = prp_get_fmt,
+	.set_fmt = prp_set_fmt,
+	.link_validate = prp_link_validate,
+};
+
+static struct v4l2_subdev_video_ops prp_video_ops = {
+	.s_stream = prp_s_stream,
+};
+
+static struct media_entity_operations prp_entity_ops = {
+	.link_setup = prp_link_setup,
+	.link_validate = v4l2_subdev_link_validate,
+};
+
+static struct v4l2_subdev_ops prp_subdev_ops = {
+	.video = &prp_video_ops,
+	.pad = &prp_pad_ops,
+};
+
+static struct v4l2_subdev_internal_ops prp_internal_ops = {
+	.registered = prp_registered,
+};
+
+static int prp_init(struct imx_ic_priv *ic_priv)
+{
+	struct prp_priv *priv;
+
+	priv = devm_kzalloc(ic_priv->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	mutex_init(&priv->lock);
+	ic_priv->prp_priv = priv;
+	priv->ic_priv = ic_priv;
+
+	return 0;
+}
+
+static void prp_remove(struct imx_ic_priv *ic_priv)
+{
+	struct prp_priv *priv = ic_priv->prp_priv;
+
+	mutex_destroy(&priv->lock);
+}
+
+struct imx_ic_ops imx_ic_prp_ops = {
+	.subdev_ops = &prp_subdev_ops,
+	.internal_ops = &prp_internal_ops,
+	.entity_ops = &prp_entity_ops,
+	.init = prp_init,
+	.remove = prp_remove,
+};
diff --git a/drivers/staging/media/imx/imx-ic-prpencvf.c b/drivers/staging/media/imx/imx-ic-prpencvf.c
new file mode 100644
index 0000000..4f8714f
--- /dev/null
+++ b/drivers/staging/media/imx/imx-ic-prpencvf.c
@@ -0,0 +1,1170 @@
+/*
+ * V4L2 Capture IC Preprocess Subdev for Freescale i.MX5/6 SOC
+ *
+ * This subdevice handles capture of video frames from the CSI or VDIC,
+ * which are routed directly to the Image Converter preprocess tasks,
+ * for resizing, colorspace conversion, and rotation.
+ *
+ * Copyright (c) 2012-2017 Mentor Graphics Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/timer.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-mc.h>
+#include <media/v4l2-subdev.h>
+#include <media/imx.h>
+#include "imx-media.h"
+#include "imx-ic.h"
+
+/*
+ * Min/Max supported width and heights.
+ *
+ * We allow planar output, so we have to align width at the source pad
+ * by 16 pixels to meet IDMAC alignment requirements for possible planar
+ * output.
+ *
+ * TODO: move this into pad format negotiation, if capture device
+ * has not requested a planar format, we should allow 8 pixel
+ * alignment at the source pad.
+ */
+#define MIN_W_SINK  176
+#define MIN_H_SINK  144
+#define MAX_W_SINK 4096
+#define MAX_H_SINK 4096
+#define W_ALIGN_SINK  3 /* multiple of 8 pixels */
+#define H_ALIGN_SINK  1 /* multiple of 2 lines */
+
+#define MAX_W_SRC  1024
+#define MAX_H_SRC  1024
+#define W_ALIGN_SRC   4 /* multiple of 16 pixels */
+#define H_ALIGN_SRC   1 /* multiple of 2 lines */
+
+#define S_ALIGN       1 /* multiple of 2 */
+
+struct prp_priv {
+	struct imx_media_dev *md;
+	struct imx_ic_priv *ic_priv;
+	struct media_pad pad[PRPENCVF_NUM_PADS];
+	/* the video device at output pad */
+	struct imx_media_video_dev *vdev;
+
+	/* lock to protect all members below */
+	struct mutex lock;
+
+	/* IPU units we require */
+	struct ipu_soc *ipu;
+	struct ipu_ic *ic;
+	struct ipuv3_channel *out_ch;
+	struct ipuv3_channel *rot_in_ch;
+	struct ipuv3_channel *rot_out_ch;
+
+	/* active vb2 buffers to send to video dev sink */
+	struct imx_media_buffer *active_vb2_buf[2];
+	struct imx_media_dma_buf underrun_buf;
+
+	int ipu_buf_num;  /* ipu double buffer index: 0-1 */
+
+	/* the sink for the captured frames */
+	struct media_entity *sink;
+	/* the source subdev */
+	struct v4l2_subdev *src_sd;
+
+	/* the attached CSI at stream on */
+	struct v4l2_subdev *csi_sd;
+
+	struct v4l2_mbus_framefmt format_mbus[PRPENCVF_NUM_PADS];
+	const struct imx_media_pixfmt *cc[PRPENCVF_NUM_PADS];
+
+	struct imx_media_dma_buf rot_buf[2];
+
+	/* controls */
+	struct v4l2_ctrl_handler ctrl_hdlr;
+	int  rotation; /* degrees */
+	bool hflip;
+	bool vflip;
+
+	/* derived from rotation, hflip, vflip controls */
+	enum ipu_rotate_mode rot_mode;
+
+	spinlock_t irqlock; /* protect eof_irq handler */
+
+	struct timer_list eof_timeout_timer;
+	int eof_irq;
+	int nfb4eof_irq;
+
+	bool stream_on; /* streaming is on */
+	bool last_eof;  /* waiting for last EOF at stream off */
+	bool nfb4eof;    /* NFB4EOF encountered during streaming */
+	struct completion last_eof_comp;
+};
+
+static const struct prp_channels {
+	u32 out_ch;
+	u32 rot_in_ch;
+	u32 rot_out_ch;
+} prp_channel[] = {
+	[IC_TASK_ENCODER] = {
+		.out_ch = IPUV3_CHANNEL_IC_PRP_ENC_MEM,
+		.rot_in_ch = IPUV3_CHANNEL_MEM_ROT_ENC,
+		.rot_out_ch = IPUV3_CHANNEL_ROT_ENC_MEM,
+	},
+	[IC_TASK_VIEWFINDER] = {
+		.out_ch = IPUV3_CHANNEL_IC_PRP_VF_MEM,
+		.rot_in_ch = IPUV3_CHANNEL_MEM_ROT_VF,
+		.rot_out_ch = IPUV3_CHANNEL_ROT_VF_MEM,
+	},
+};
+
+static inline struct prp_priv *sd_to_priv(struct v4l2_subdev *sd)
+{
+	struct imx_ic_priv *ic_priv = v4l2_get_subdevdata(sd);
+
+	return ic_priv->task_priv;
+}
+
+static void prp_put_ipu_resources(struct prp_priv *priv)
+{
+	if (!IS_ERR_OR_NULL(priv->ic))
+		ipu_ic_put(priv->ic);
+	priv->ic = NULL;
+
+	if (!IS_ERR_OR_NULL(priv->out_ch))
+		ipu_idmac_put(priv->out_ch);
+	priv->out_ch = NULL;
+
+	if (!IS_ERR_OR_NULL(priv->rot_in_ch))
+		ipu_idmac_put(priv->rot_in_ch);
+	priv->rot_in_ch = NULL;
+
+	if (!IS_ERR_OR_NULL(priv->rot_out_ch))
+		ipu_idmac_put(priv->rot_out_ch);
+	priv->rot_out_ch = NULL;
+}
+
+static int prp_get_ipu_resources(struct prp_priv *priv)
+{
+	struct imx_ic_priv *ic_priv = priv->ic_priv;
+	int ret, task = ic_priv->task_id;
+
+	priv->ipu = priv->md->ipu[ic_priv->ipu_id];
+
+	priv->ic = ipu_ic_get(priv->ipu, task);
+	if (IS_ERR(priv->ic)) {
+		v4l2_err(&ic_priv->sd, "failed to get IC\n");
+		ret = PTR_ERR(priv->ic);
+		goto out;
+	}
+
+	priv->out_ch = ipu_idmac_get(priv->ipu,
+				     prp_channel[task].out_ch);
+	if (IS_ERR(priv->out_ch)) {
+		v4l2_err(&ic_priv->sd, "could not get IDMAC channel %u\n",
+			 prp_channel[task].out_ch);
+		ret = PTR_ERR(priv->out_ch);
+		goto out;
+	}
+
+	priv->rot_in_ch = ipu_idmac_get(priv->ipu,
+					prp_channel[task].rot_in_ch);
+	if (IS_ERR(priv->rot_in_ch)) {
+		v4l2_err(&ic_priv->sd, "could not get IDMAC channel %u\n",
+			 prp_channel[task].rot_in_ch);
+		ret = PTR_ERR(priv->rot_in_ch);
+		goto out;
+	}
+
+	priv->rot_out_ch = ipu_idmac_get(priv->ipu,
+					 prp_channel[task].rot_out_ch);
+	if (IS_ERR(priv->rot_out_ch)) {
+		v4l2_err(&ic_priv->sd, "could not get IDMAC channel %u\n",
+			 prp_channel[task].rot_out_ch);
+		ret = PTR_ERR(priv->rot_out_ch);
+		goto out;
+	}
+
+	return 0;
+out:
+	prp_put_ipu_resources(priv);
+	return ret;
+}
+
+static void prp_vb2_buf_done(struct prp_priv *priv, struct ipuv3_channel *ch)
+{
+	struct imx_media_video_dev *vdev = priv->vdev;
+	struct imx_media_buffer *done, *next;
+	struct vb2_buffer *vb;
+	dma_addr_t phys;
+
+	done = priv->active_vb2_buf[priv->ipu_buf_num];
+	if (done) {
+		vb = &done->vbuf.vb2_buf;
+		vb->timestamp = ktime_get_ns();
+		vb2_buffer_done(vb, priv->nfb4eof ?
+				VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
+	}
+
+	priv->nfb4eof = false;
+
+	/* get next queued buffer */
+	next = imx_media_capture_device_next_buf(vdev);
+	if (next) {
+		phys = vb2_dma_contig_plane_dma_addr(&next->vbuf.vb2_buf, 0);
+		priv->active_vb2_buf[priv->ipu_buf_num] = next;
+	} else {
+		phys = priv->underrun_buf.phys;
+		priv->active_vb2_buf[priv->ipu_buf_num] = NULL;
+	}
+
+	if (ipu_idmac_buffer_is_ready(ch, priv->ipu_buf_num))
+		ipu_idmac_clear_buffer(ch, priv->ipu_buf_num);
+
+	ipu_cpmem_set_buffer(ch, priv->ipu_buf_num, phys);
+}
+
+static irqreturn_t prp_eof_interrupt(int irq, void *dev_id)
+{
+	struct prp_priv *priv = dev_id;
+	struct ipuv3_channel *channel;
+
+	spin_lock(&priv->irqlock);
+
+	if (priv->last_eof) {
+		complete(&priv->last_eof_comp);
+		priv->last_eof = false;
+		goto unlock;
+	}
+
+	/*
+	 * if there is a CSI in the pipeline, inform it of this EOF
+	 * so it can monitor frame intervals.
+	 */
+	if (priv->csi_sd)
+		v4l2_subdev_call(priv->csi_sd, core,
+				 interrupt_service_routine,
+				 0, NULL);
+
+	channel = (ipu_rot_mode_is_irt(priv->rot_mode)) ?
+		priv->rot_out_ch : priv->out_ch;
+
+	prp_vb2_buf_done(priv, channel);
+
+	/* select new IPU buf */
+	ipu_idmac_select_buffer(channel, priv->ipu_buf_num);
+	/* toggle IPU double-buffer index */
+	priv->ipu_buf_num ^= 1;
+
+	/* bump the EOF timeout timer */
+	mod_timer(&priv->eof_timeout_timer,
+		  jiffies + msecs_to_jiffies(IMX_MEDIA_EOF_TIMEOUT));
+
+unlock:
+	spin_unlock(&priv->irqlock);
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t prp_nfb4eof_interrupt(int irq, void *dev_id)
+{
+	struct prp_priv *priv = dev_id;
+	struct imx_ic_priv *ic_priv = priv->ic_priv;
+
+	spin_lock(&priv->irqlock);
+
+	/*
+	 * this is not an unrecoverable error, just mark
+	 * the next captured frame with vb2 error flag.
+	 */
+	priv->nfb4eof = true;
+
+	v4l2_err(&ic_priv->sd, "NFB4EOF\n");
+
+	spin_unlock(&priv->irqlock);
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * EOF timeout timer function.
+ */
+/*
+ * EOF timeout timer function. This is an unrecoverable condition
+ * without a stream restart.
+ */
+static void prp_eof_timeout(unsigned long data)
+{
+	struct prp_priv *priv = (struct prp_priv *)data;
+	struct imx_media_video_dev *vdev = priv->vdev;
+	struct imx_ic_priv *ic_priv = priv->ic_priv;
+
+	v4l2_err(&ic_priv->sd, "EOF timeout\n");
+
+	/* signal a fatal error to capture device */
+	imx_media_capture_device_error(vdev);
+}
+
+static void prp_setup_vb2_buf(struct prp_priv *priv, dma_addr_t *phys)
+{
+	struct imx_media_video_dev *vdev = priv->vdev;
+	struct imx_media_buffer *buf;
+	int i;
+
+	for (i = 0; i < 2; i++) {
+		buf = imx_media_capture_device_next_buf(vdev);
+		priv->active_vb2_buf[i] = buf;
+		phys[i] = vb2_dma_contig_plane_dma_addr(&buf->vbuf.vb2_buf, 0);
+	}
+}
+
+static void prp_unsetup_vb2_buf(struct prp_priv *priv,
+				enum vb2_buffer_state return_status)
+{
+	struct imx_media_buffer *buf;
+	int i;
+
+	/* return any remaining active frames with return_status */
+	for (i = 0; i < 2; i++) {
+		buf = priv->active_vb2_buf[i];
+		if (buf) {
+			struct vb2_buffer *vb = &buf->vbuf.vb2_buf;
+
+			vb->timestamp = ktime_get_ns();
+			vb2_buffer_done(vb, return_status);
+		}
+	}
+}
+
+static int prp_setup_channel(struct prp_priv *priv,
+			     struct ipuv3_channel *channel,
+			     enum ipu_rotate_mode rot_mode,
+			     dma_addr_t addr0, dma_addr_t addr1,
+			     bool rot_swap_width_height)
+{
+	struct imx_media_video_dev *vdev = priv->vdev;
+	const struct imx_media_pixfmt *outcc;
+	struct v4l2_mbus_framefmt *infmt;
+	unsigned int burst_size;
+	struct ipu_image image;
+	int ret;
+
+	infmt = &priv->format_mbus[PRPENCVF_SINK_PAD];
+	outcc = vdev->cc;
+
+	ipu_cpmem_zero(channel);
+
+	memset(&image, 0, sizeof(image));
+	image.pix = vdev->fmt.fmt.pix;
+	image.rect.width = image.pix.width;
+	image.rect.height = image.pix.height;
+
+	if (rot_swap_width_height) {
+		swap(image.pix.width, image.pix.height);
+		swap(image.rect.width, image.rect.height);
+		/* recalc stride using swapped width */
+		image.pix.bytesperline = outcc->planar ?
+			image.pix.width :
+			(image.pix.width * outcc->bpp) >> 3;
+	}
+
+	image.phys0 = addr0;
+	image.phys1 = addr1;
+
+	ret = ipu_cpmem_set_image(channel, &image);
+	if (ret)
+		return ret;
+
+	if (channel == priv->rot_in_ch ||
+	    channel == priv->rot_out_ch) {
+		burst_size = 8;
+		ipu_cpmem_set_block_mode(channel);
+	} else {
+		burst_size = (image.pix.width & 0xf) ? 8 : 16;
+	}
+
+	ipu_cpmem_set_burstsize(channel, burst_size);
+
+	if (rot_mode)
+		ipu_cpmem_set_rotation(channel, rot_mode);
+
+	if (image.pix.field == V4L2_FIELD_NONE &&
+	    V4L2_FIELD_HAS_BOTH(infmt->field) &&
+	    channel == priv->out_ch)
+		ipu_cpmem_interlaced_scan(channel, image.pix.bytesperline);
+
+	ret = ipu_ic_task_idma_init(priv->ic, channel,
+				    image.pix.width, image.pix.height,
+				    burst_size, rot_mode);
+	if (ret)
+		return ret;
+
+	ipu_cpmem_set_axi_id(channel, 1);
+
+	ipu_idmac_set_double_buffer(channel, true);
+
+	return 0;
+}
+
+static int prp_setup_rotation(struct prp_priv *priv)
+{
+	struct imx_media_video_dev *vdev = priv->vdev;
+	struct imx_ic_priv *ic_priv = priv->ic_priv;
+	const struct imx_media_pixfmt *outcc, *incc;
+	struct v4l2_mbus_framefmt *infmt;
+	struct v4l2_pix_format *outfmt;
+	dma_addr_t phys[2];
+	int ret;
+
+	infmt = &priv->format_mbus[PRPENCVF_SINK_PAD];
+	outfmt = &vdev->fmt.fmt.pix;
+	incc = priv->cc[PRPENCVF_SINK_PAD];
+	outcc = vdev->cc;
+
+	ret = imx_media_alloc_dma_buf(priv->md, &priv->rot_buf[0],
+				      outfmt->sizeimage);
+	if (ret) {
+		v4l2_err(&ic_priv->sd, "failed to alloc rot_buf[0], %d\n", ret);
+		return ret;
+	}
+	ret = imx_media_alloc_dma_buf(priv->md, &priv->rot_buf[1],
+				      outfmt->sizeimage);
+	if (ret) {
+		v4l2_err(&ic_priv->sd, "failed to alloc rot_buf[1], %d\n", ret);
+		goto free_rot0;
+	}
+
+	ret = ipu_ic_task_init(priv->ic,
+			       infmt->width, infmt->height,
+			       outfmt->height, outfmt->width,
+			       incc->cs, outcc->cs);
+	if (ret) {
+		v4l2_err(&ic_priv->sd, "ipu_ic_task_init failed, %d\n", ret);
+		goto free_rot1;
+	}
+
+	/* init the IC-PRP-->MEM IDMAC channel */
+	ret = prp_setup_channel(priv, priv->out_ch, IPU_ROTATE_NONE,
+				priv->rot_buf[0].phys, priv->rot_buf[1].phys,
+				true);
+	if (ret) {
+		v4l2_err(&ic_priv->sd,
+			 "prp_setup_channel(out_ch) failed, %d\n", ret);
+		goto free_rot1;
+	}
+
+	/* init the MEM-->IC-PRP ROT IDMAC channel */
+	ret = prp_setup_channel(priv, priv->rot_in_ch, priv->rot_mode,
+				priv->rot_buf[0].phys, priv->rot_buf[1].phys,
+				true);
+	if (ret) {
+		v4l2_err(&ic_priv->sd,
+			 "prp_setup_channel(rot_in_ch) failed, %d\n", ret);
+		goto free_rot1;
+	}
+
+	prp_setup_vb2_buf(priv, phys);
+
+	/* init the destination IC-PRP ROT-->MEM IDMAC channel */
+	ret = prp_setup_channel(priv, priv->rot_out_ch, IPU_ROTATE_NONE,
+				phys[0], phys[1],
+				false);
+	if (ret) {
+		v4l2_err(&ic_priv->sd,
+			 "prp_setup_channel(rot_out_ch) failed, %d\n", ret);
+		goto unsetup_vb2;
+	}
+
+	/* now link IC-PRP-->MEM to MEM-->IC-PRP ROT */
+	ipu_idmac_link(priv->out_ch, priv->rot_in_ch);
+
+	/* enable the IC */
+	ipu_ic_enable(priv->ic);
+
+	/* set buffers ready */
+	ipu_idmac_select_buffer(priv->out_ch, 0);
+	ipu_idmac_select_buffer(priv->out_ch, 1);
+	ipu_idmac_select_buffer(priv->rot_out_ch, 0);
+	ipu_idmac_select_buffer(priv->rot_out_ch, 1);
+
+	/* enable the channels */
+	ipu_idmac_enable_channel(priv->out_ch);
+	ipu_idmac_enable_channel(priv->rot_in_ch);
+	ipu_idmac_enable_channel(priv->rot_out_ch);
+
+	/* and finally enable the IC PRP task */
+	ipu_ic_task_enable(priv->ic);
+
+	return 0;
+
+unsetup_vb2:
+	prp_unsetup_vb2_buf(priv, VB2_BUF_STATE_QUEUED);
+free_rot1:
+	imx_media_free_dma_buf(priv->md, &priv->rot_buf[1]);
+free_rot0:
+	imx_media_free_dma_buf(priv->md, &priv->rot_buf[0]);
+	return ret;
+}
+
+static void prp_unsetup_rotation(struct prp_priv *priv)
+{
+	ipu_ic_task_disable(priv->ic);
+
+	ipu_idmac_disable_channel(priv->out_ch);
+	ipu_idmac_disable_channel(priv->rot_in_ch);
+	ipu_idmac_disable_channel(priv->rot_out_ch);
+
+	ipu_idmac_unlink(priv->out_ch, priv->rot_in_ch);
+
+	ipu_ic_disable(priv->ic);
+
+	imx_media_free_dma_buf(priv->md, &priv->rot_buf[0]);
+	imx_media_free_dma_buf(priv->md, &priv->rot_buf[1]);
+}
+
+static int prp_setup_norotation(struct prp_priv *priv)
+{
+	struct imx_media_video_dev *vdev = priv->vdev;
+	struct imx_ic_priv *ic_priv = priv->ic_priv;
+	const struct imx_media_pixfmt *outcc, *incc;
+	struct v4l2_mbus_framefmt *infmt;
+	struct v4l2_pix_format *outfmt;
+	dma_addr_t phys[2];
+	int ret;
+
+	infmt = &priv->format_mbus[PRPENCVF_SINK_PAD];
+	outfmt = &vdev->fmt.fmt.pix;
+	incc = priv->cc[PRPENCVF_SINK_PAD];
+	outcc = vdev->cc;
+
+	ret = ipu_ic_task_init(priv->ic,
+			       infmt->width, infmt->height,
+			       outfmt->width, outfmt->height,
+			       incc->cs, outcc->cs);
+	if (ret) {
+		v4l2_err(&ic_priv->sd, "ipu_ic_task_init failed, %d\n", ret);
+		return ret;
+	}
+
+	prp_setup_vb2_buf(priv, phys);
+
+	/* init the IC PRP-->MEM IDMAC channel */
+	ret = prp_setup_channel(priv, priv->out_ch, priv->rot_mode,
+				phys[0], phys[1], false);
+	if (ret) {
+		v4l2_err(&ic_priv->sd,
+			 "prp_setup_channel(out_ch) failed, %d\n", ret);
+		goto unsetup_vb2;
+	}
+
+	ipu_cpmem_dump(priv->out_ch);
+	ipu_ic_dump(priv->ic);
+	ipu_dump(priv->ipu);
+
+	ipu_ic_enable(priv->ic);
+
+	/* set buffers ready */
+	ipu_idmac_select_buffer(priv->out_ch, 0);
+	ipu_idmac_select_buffer(priv->out_ch, 1);
+
+	/* enable the channels */
+	ipu_idmac_enable_channel(priv->out_ch);
+
+	/* enable the IC task */
+	ipu_ic_task_enable(priv->ic);
+
+	return 0;
+
+unsetup_vb2:
+	prp_unsetup_vb2_buf(priv, VB2_BUF_STATE_QUEUED);
+	return ret;
+}
+
+static void prp_unsetup_norotation(struct prp_priv *priv)
+{
+	ipu_ic_task_disable(priv->ic);
+	ipu_idmac_disable_channel(priv->out_ch);
+	ipu_ic_disable(priv->ic);
+}
+
+static void prp_unsetup(struct prp_priv *priv,
+			enum vb2_buffer_state state)
+{
+	if (ipu_rot_mode_is_irt(priv->rot_mode))
+		prp_unsetup_rotation(priv);
+	else
+		prp_unsetup_norotation(priv);
+
+	prp_unsetup_vb2_buf(priv, state);
+}
+
+static int prp_start(struct prp_priv *priv)
+{
+	struct imx_ic_priv *ic_priv = priv->ic_priv;
+	struct imx_media_video_dev *vdev = priv->vdev;
+	struct v4l2_pix_format *outfmt;
+	int ret;
+
+	ret = prp_get_ipu_resources(priv);
+	if (ret)
+		return ret;
+
+	outfmt = &vdev->fmt.fmt.pix;
+
+	ret = imx_media_alloc_dma_buf(priv->md, &priv->underrun_buf,
+				      outfmt->sizeimage);
+	if (ret)
+		goto out_put_ipu;
+
+	priv->ipu_buf_num = 0;
+
+	/* init EOF completion waitq */
+	init_completion(&priv->last_eof_comp);
+	priv->last_eof = false;
+	priv->nfb4eof = false;
+
+	if (ipu_rot_mode_is_irt(priv->rot_mode))
+		ret = prp_setup_rotation(priv);
+	else
+		ret = prp_setup_norotation(priv);
+	if (ret)
+		goto out_free_underrun;
+
+	priv->nfb4eof_irq = ipu_idmac_channel_irq(priv->ipu,
+						  priv->out_ch,
+						  IPU_IRQ_NFB4EOF);
+	ret = devm_request_irq(ic_priv->dev, priv->nfb4eof_irq,
+			       prp_nfb4eof_interrupt, 0,
+			       "imx-ic-prp-nfb4eof", priv);
+	if (ret) {
+		v4l2_err(&ic_priv->sd,
+			 "Error registering NFB4EOF irq: %d\n", ret);
+		goto out_unsetup;
+	}
+
+	if (ipu_rot_mode_is_irt(priv->rot_mode))
+		priv->eof_irq = ipu_idmac_channel_irq(
+			priv->ipu, priv->rot_out_ch, IPU_IRQ_EOF);
+	else
+		priv->eof_irq = ipu_idmac_channel_irq(
+			priv->ipu, priv->out_ch, IPU_IRQ_EOF);
+
+	ret = devm_request_irq(ic_priv->dev, priv->eof_irq,
+			       prp_eof_interrupt, 0,
+			       "imx-ic-prp-eof", priv);
+	if (ret) {
+		v4l2_err(&ic_priv->sd,
+			 "Error registering eof irq: %d\n", ret);
+		goto out_free_nfb4eof_irq;
+	}
+
+	/* start the EOF timeout timer */
+	mod_timer(&priv->eof_timeout_timer,
+		  jiffies + msecs_to_jiffies(IMX_MEDIA_EOF_TIMEOUT));
+
+	return 0;
+
+out_free_nfb4eof_irq:
+	devm_free_irq(ic_priv->dev, priv->nfb4eof_irq, priv);
+out_unsetup:
+	prp_unsetup(priv, VB2_BUF_STATE_QUEUED);
+out_free_underrun:
+	imx_media_free_dma_buf(priv->md, &priv->underrun_buf);
+out_put_ipu:
+	prp_put_ipu_resources(priv);
+	return ret;
+}
+
+static void prp_stop(struct prp_priv *priv)
+{
+	struct imx_ic_priv *ic_priv = priv->ic_priv;
+	unsigned long flags;
+	int ret;
+
+	/* mark next EOF interrupt as the last before stream off */
+	spin_lock_irqsave(&priv->irqlock, flags);
+	priv->last_eof = true;
+	spin_unlock_irqrestore(&priv->irqlock, flags);
+
+	/*
+	 * and then wait for interrupt handler to mark completion.
+	 */
+	ret = wait_for_completion_timeout(
+		&priv->last_eof_comp,
+		msecs_to_jiffies(IMX_MEDIA_EOF_TIMEOUT));
+	if (ret == 0)
+		v4l2_warn(&ic_priv->sd, "wait last EOF timeout\n");
+
+	devm_free_irq(ic_priv->dev, priv->eof_irq, priv);
+	devm_free_irq(ic_priv->dev, priv->nfb4eof_irq, priv);
+
+	prp_unsetup(priv, VB2_BUF_STATE_ERROR);
+
+	imx_media_free_dma_buf(priv->md, &priv->underrun_buf);
+
+	/* cancel the EOF timeout timer */
+	del_timer_sync(&priv->eof_timeout_timer);
+
+	prp_put_ipu_resources(priv);
+}
+
+static int prp_enum_mbus_code(struct v4l2_subdev *sd,
+			      struct v4l2_subdev_pad_config *cfg,
+			      struct v4l2_subdev_mbus_code_enum *code)
+{
+	if (code->pad >= PRPENCVF_NUM_PADS)
+		return -EINVAL;
+
+	if (code->pad == PRPENCVF_SRC_PAD)
+		return imx_media_enum_format(NULL, &code->code, code->index,
+					     true, false);
+
+	return imx_media_enum_ipu_format(NULL, &code->code, code->index, true);
+}
+
+static struct v4l2_mbus_framefmt *
+__prp_get_fmt(struct prp_priv *priv, struct v4l2_subdev_pad_config *cfg,
+	      unsigned int pad, enum v4l2_subdev_format_whence which)
+{
+	struct imx_ic_priv *ic_priv = priv->ic_priv;
+
+	if (which == V4L2_SUBDEV_FORMAT_TRY)
+		return v4l2_subdev_get_try_format(&ic_priv->sd, cfg, pad);
+	else
+		return &priv->format_mbus[pad];
+}
+
+/*
+ * V4L2 subdev operations.
+ */
+
+static int prp_get_fmt(struct v4l2_subdev *sd,
+		       struct v4l2_subdev_pad_config *cfg,
+		       struct v4l2_subdev_format *sdformat)
+{
+	struct prp_priv *priv = sd_to_priv(sd);
+	struct v4l2_mbus_framefmt *fmt;
+	int ret = 0;
+
+	if (sdformat->pad >= PRPENCVF_NUM_PADS)
+		return -EINVAL;
+
+	mutex_lock(&priv->lock);
+
+	fmt = __prp_get_fmt(priv, cfg, sdformat->pad, sdformat->which);
+	if (!fmt) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	sdformat->format = *fmt;
+out:
+	mutex_unlock(&priv->lock);
+	return ret;
+}
+
+static int prp_set_fmt(struct v4l2_subdev *sd,
+		       struct v4l2_subdev_pad_config *cfg,
+		       struct v4l2_subdev_format *sdformat)
+{
+	struct prp_priv *priv = sd_to_priv(sd);
+	const struct imx_media_pixfmt *cc;
+	struct v4l2_mbus_framefmt *infmt;
+	int ret = 0;
+	u32 code;
+
+	if (sdformat->pad >= PRPENCVF_NUM_PADS)
+		return -EINVAL;
+
+	mutex_lock(&priv->lock);
+
+	if (priv->stream_on) {
+		ret = -EBUSY;
+		goto out;
+	}
+
+	if (sdformat->pad == PRPENCVF_SRC_PAD) {
+		infmt = __prp_get_fmt(priv, cfg, PRPENCVF_SINK_PAD,
+				      sdformat->which);
+
+		cc = imx_media_find_format(0, sdformat->format.code,
+					   true, false);
+		if (!cc) {
+			imx_media_enum_format(NULL, &code, 0, true, false);
+			cc = imx_media_find_format(0, code, true, false);
+			sdformat->format.code = cc->codes[0];
+		}
+
+		if (sdformat->format.field != V4L2_FIELD_NONE)
+			sdformat->format.field = infmt->field;
+
+		/* IC resizer cannot downsize more than 4:1 */
+		if (ipu_rot_mode_is_irt(priv->rot_mode))
+			v4l_bound_align_image(&sdformat->format.width,
+					      infmt->height / 4, MAX_H_SRC,
+					      H_ALIGN_SRC,
+					      &sdformat->format.height,
+					      infmt->width / 4, MAX_W_SRC,
+					      W_ALIGN_SRC, S_ALIGN);
+		else
+			v4l_bound_align_image(&sdformat->format.width,
+					      infmt->width / 4, MAX_W_SRC,
+					      W_ALIGN_SRC,
+					      &sdformat->format.height,
+					      infmt->height / 4, MAX_H_SRC,
+					      H_ALIGN_SRC, S_ALIGN);
+	} else {
+		cc = imx_media_find_ipu_format(0, sdformat->format.code,
+					       true);
+		if (!cc) {
+			imx_media_enum_ipu_format(NULL, &code, 0, true);
+			cc = imx_media_find_ipu_format(0, code, true);
+			sdformat->format.code = cc->codes[0];
+		}
+
+		v4l_bound_align_image(&sdformat->format.width,
+				      MIN_W_SINK, MAX_W_SINK, W_ALIGN_SINK,
+				      &sdformat->format.height,
+				      MIN_H_SINK, MAX_H_SINK, H_ALIGN_SINK,
+				      S_ALIGN);
+	}
+
+	if (sdformat->which == V4L2_SUBDEV_FORMAT_TRY) {
+		cfg->try_fmt = sdformat->format;
+	} else {
+		priv->format_mbus[sdformat->pad] = sdformat->format;
+		priv->cc[sdformat->pad] = cc;
+	}
+
+out:
+	mutex_unlock(&priv->lock);
+	return ret;
+}
+
+static int prp_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 imx_ic_priv *ic_priv = v4l2_get_subdevdata(sd);
+	struct prp_priv *priv = ic_priv->task_priv;
+	struct v4l2_subdev *remote_sd;
+	int ret = 0;
+
+	dev_dbg(ic_priv->dev, "link setup %s -> %s", remote->entity->name,
+		local->entity->name);
+
+	mutex_lock(&priv->lock);
+
+	if (local->flags & MEDIA_PAD_FL_SINK) {
+		if (!is_media_entity_v4l2_subdev(remote->entity)) {
+			ret = -EINVAL;
+			goto out;
+		}
+
+		remote_sd = media_entity_to_v4l2_subdev(remote->entity);
+
+		if (flags & MEDIA_LNK_FL_ENABLED) {
+			if (priv->src_sd) {
+				ret = -EBUSY;
+				goto out;
+			}
+			priv->src_sd = remote_sd;
+		} else {
+			priv->src_sd = NULL;
+		}
+
+		goto out;
+	}
+
+	/* this is the source pad */
+
+	/* the remote must be the device node */
+	if (!is_media_entity_v4l2_video_device(remote->entity)) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	if (flags & MEDIA_LNK_FL_ENABLED) {
+		if (priv->sink) {
+			ret = -EBUSY;
+			goto out;
+		}
+	} else {
+		priv->sink = NULL;
+		goto out;
+	}
+
+	priv->sink = remote->entity;
+out:
+	mutex_unlock(&priv->lock);
+	return ret;
+}
+
+static int prp_link_validate(struct v4l2_subdev *sd,
+			     struct media_link *link,
+			     struct v4l2_subdev_format *source_fmt,
+			     struct v4l2_subdev_format *sink_fmt)
+{
+	struct imx_ic_priv *ic_priv = v4l2_get_subdevdata(sd);
+	struct prp_priv *priv = ic_priv->task_priv;
+	struct imx_media_subdev *csi;
+	int ret;
+
+	ret = v4l2_subdev_link_validate_default(sd, link,
+						source_fmt, sink_fmt);
+	if (ret)
+		return ret;
+
+	csi = imx_media_find_pipeline_subdev(priv->md, &ic_priv->sd.entity,
+					     IMX_MEDIA_GRP_ID_CSI);
+	if (IS_ERR(csi))
+		csi = NULL;
+
+	mutex_lock(&priv->lock);
+	priv->csi_sd = csi ? csi->sd : NULL;
+	mutex_unlock(&priv->lock);
+	return ret;
+}
+
+static int prp_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct prp_priv *priv = container_of(ctrl->handler,
+					       struct prp_priv, ctrl_hdlr);
+	struct imx_ic_priv *ic_priv = priv->ic_priv;
+	enum ipu_rotate_mode rot_mode;
+	int rotation, ret = 0;
+	bool hflip, vflip;
+
+	mutex_lock(&priv->lock);
+
+	rotation = priv->rotation;
+	hflip = priv->hflip;
+	vflip = priv->vflip;
+
+	switch (ctrl->id) {
+	case V4L2_CID_HFLIP:
+		hflip = (ctrl->val == 1);
+		break;
+	case V4L2_CID_VFLIP:
+		vflip = (ctrl->val == 1);
+		break;
+	case V4L2_CID_ROTATE:
+		rotation = ctrl->val;
+		break;
+	default:
+		v4l2_err(&ic_priv->sd, "Invalid control\n");
+		ret = -EINVAL;
+		goto out;
+	}
+
+	ret = ipu_degrees_to_rot_mode(&rot_mode, rotation, hflip, vflip);
+	if (ret)
+		goto out;
+
+	if (rot_mode != priv->rot_mode) {
+		/* can't change rotation mid-streaming */
+		if (priv->stream_on) {
+			ret = -EBUSY;
+			goto out;
+		}
+		priv->rot_mode = rot_mode;
+		priv->rotation = rotation;
+		priv->hflip = hflip;
+		priv->vflip = vflip;
+	}
+
+out:
+	mutex_unlock(&priv->lock);
+	return ret;
+}
+
+static const struct v4l2_ctrl_ops prp_ctrl_ops = {
+	.s_ctrl = prp_s_ctrl,
+};
+
+static int prp_init_controls(struct prp_priv *priv)
+{
+	struct imx_ic_priv *ic_priv = priv->ic_priv;
+	struct v4l2_ctrl_handler *hdlr = &priv->ctrl_hdlr;
+	int ret;
+
+	v4l2_ctrl_handler_init(hdlr, 3);
+
+	v4l2_ctrl_new_std(hdlr, &prp_ctrl_ops, V4L2_CID_HFLIP,
+			  0, 1, 1, 0);
+	v4l2_ctrl_new_std(hdlr, &prp_ctrl_ops, V4L2_CID_VFLIP,
+			  0, 1, 1, 0);
+	v4l2_ctrl_new_std(hdlr, &prp_ctrl_ops, V4L2_CID_ROTATE,
+			  0, 270, 90, 0);
+
+	ic_priv->sd.ctrl_handler = hdlr;
+
+	if (hdlr->error) {
+		ret = hdlr->error;
+		goto out_free;
+	}
+
+	v4l2_ctrl_handler_setup(hdlr);
+	return 0;
+
+out_free:
+	v4l2_ctrl_handler_free(hdlr);
+	return ret;
+}
+
+static int prp_s_stream(struct v4l2_subdev *sd, int enable)
+{
+	struct imx_ic_priv *ic_priv = v4l2_get_subdevdata(sd);
+	struct prp_priv *priv = ic_priv->task_priv;
+	int ret = 0;
+
+	mutex_lock(&priv->lock);
+
+	if (!priv->src_sd || !priv->sink) {
+		ret = -EPIPE;
+		goto out;
+	}
+
+	dev_dbg(ic_priv->dev, "stream %s\n", enable ? "ON" : "OFF");
+
+	if (enable && !priv->stream_on)
+		ret = prp_start(priv);
+	else if (!enable && priv->stream_on)
+		prp_stop(priv);
+
+	if (!ret)
+		priv->stream_on = enable;
+out:
+	mutex_unlock(&priv->lock);
+	return ret;
+}
+
+/*
+ * retrieve our pads parsed from the OF graph by the media device
+ */
+static int prp_registered(struct v4l2_subdev *sd)
+{
+	struct prp_priv *priv = sd_to_priv(sd);
+	int i, ret;
+	u32 code;
+
+	/* get media device */
+	priv->md = dev_get_drvdata(sd->v4l2_dev->dev);
+
+	for (i = 0; i < PRPENCVF_NUM_PADS; i++) {
+		if (i == PRPENCVF_SINK_PAD) {
+			priv->pad[i].flags = MEDIA_PAD_FL_SINK;
+			imx_media_enum_ipu_format(NULL, &code, 0, true);
+		} else {
+			priv->pad[i].flags = MEDIA_PAD_FL_SOURCE;
+			code = 0;
+		}
+
+		/* set a default mbus format  */
+		ret = imx_media_init_mbus_fmt(&priv->format_mbus[i],
+					      640, 480, code, V4L2_FIELD_NONE,
+					      &priv->cc[i]);
+		if (ret)
+			return ret;
+	}
+
+	ret = media_entity_pads_init(&sd->entity, PRPENCVF_NUM_PADS,
+				     priv->pad);
+	if (ret)
+		return ret;
+
+	ret = imx_media_capture_device_register(priv->vdev);
+	if (ret)
+		return ret;
+
+	ret = prp_init_controls(priv);
+	if (ret)
+		imx_media_capture_device_unregister(priv->vdev);
+
+	return ret;
+}
+
+static void prp_unregistered(struct v4l2_subdev *sd)
+{
+	struct prp_priv *priv = sd_to_priv(sd);
+
+	imx_media_capture_device_unregister(priv->vdev);
+	v4l2_ctrl_handler_free(&priv->ctrl_hdlr);
+}
+
+static struct v4l2_subdev_pad_ops prp_pad_ops = {
+	.enum_mbus_code = prp_enum_mbus_code,
+	.get_fmt = prp_get_fmt,
+	.set_fmt = prp_set_fmt,
+	.link_validate = prp_link_validate,
+};
+
+static struct v4l2_subdev_video_ops prp_video_ops = {
+	.s_stream = prp_s_stream,
+};
+
+static struct media_entity_operations prp_entity_ops = {
+	.link_setup = prp_link_setup,
+	.link_validate = v4l2_subdev_link_validate,
+};
+
+static struct v4l2_subdev_ops prp_subdev_ops = {
+	.video = &prp_video_ops,
+	.pad = &prp_pad_ops,
+};
+
+static struct v4l2_subdev_internal_ops prp_internal_ops = {
+	.registered = prp_registered,
+	.unregistered = prp_unregistered,
+};
+
+static int prp_init(struct imx_ic_priv *ic_priv)
+{
+	struct prp_priv *priv;
+
+	priv = devm_kzalloc(ic_priv->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	ic_priv->task_priv = priv;
+	priv->ic_priv = ic_priv;
+
+	spin_lock_init(&priv->irqlock);
+	init_timer(&priv->eof_timeout_timer);
+	priv->eof_timeout_timer.data = (unsigned long)priv;
+	priv->eof_timeout_timer.function = prp_eof_timeout;
+
+	priv->vdev = imx_media_capture_device_init(&ic_priv->sd,
+						   PRPENCVF_SRC_PAD);
+	if (IS_ERR(priv->vdev))
+		return PTR_ERR(priv->vdev);
+
+	mutex_init(&priv->lock);
+
+	return 0;
+}
+
+static void prp_remove(struct imx_ic_priv *ic_priv)
+{
+	struct prp_priv *priv = ic_priv->task_priv;
+
+	mutex_destroy(&priv->lock);
+	imx_media_capture_device_remove(priv->vdev);
+}
+
+struct imx_ic_ops imx_ic_prpencvf_ops = {
+	.subdev_ops = &prp_subdev_ops,
+	.internal_ops = &prp_internal_ops,
+	.entity_ops = &prp_entity_ops,
+	.init = prp_init,
+	.remove = prp_remove,
+};
diff --git a/drivers/staging/media/imx/imx-ic.h b/drivers/staging/media/imx/imx-ic.h
new file mode 100644
index 0000000..5535111
--- /dev/null
+++ b/drivers/staging/media/imx/imx-ic.h
@@ -0,0 +1,38 @@
+/*
+ * V4L2 Image Converter Subdev for Freescale i.MX5/6 SOC
+ *
+ * Copyright (c) 2016 Mentor Graphics Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#ifndef _IMX_IC_H
+#define _IMX_IC_H
+
+#include <media/v4l2-subdev.h>
+
+struct imx_ic_priv {
+	struct device *dev;
+	struct v4l2_subdev sd;
+	int    ipu_id;
+	int    task_id;
+	void   *prp_priv;
+	void   *task_priv;
+};
+
+struct imx_ic_ops {
+	struct v4l2_subdev_ops *subdev_ops;
+	struct v4l2_subdev_internal_ops *internal_ops;
+	struct media_entity_operations *entity_ops;
+
+	int (*init)(struct imx_ic_priv *ic_priv);
+	void (*remove)(struct imx_ic_priv *ic_priv);
+};
+
+extern struct imx_ic_ops imx_ic_prp_ops;
+extern struct imx_ic_ops imx_ic_prpencvf_ops;
+extern struct imx_ic_ops imx_ic_pp_ops;
+
+#endif
