Adding upstream version 4.19.249.upstream/4.19.249

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

1 files changed, 1919 insertions, 0 deletions

diff --git a/drivers/media/platform/exynos4-is/fimc-capture.c b/drivers/media/platform/exynos4-is/fimc-capture.c
new file mode 100644
index 000000000..a3cdac188
--- /dev/null
+++ b/drivers/media/platform/exynos4-is/fimc-capture.c
@@ -0,0 +1,1919 @@
+/*
+ * Samsung S5P/EXYNOS4 SoC series camera interface (camera capture) driver
+ *
+ * Copyright (C) 2010 - 2012 Samsung Electronics Co., Ltd.
+ * Sylwester Nawrocki <s.nawrocki@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/bug.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/pm_runtime.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/videobuf2-v4l2.h>
+#include <media/videobuf2-dma-contig.h>
+
+#include "common.h"
+#include "fimc-core.h"
+#include "fimc-reg.h"
+#include "media-dev.h"
+
+static int fimc_capture_hw_init(struct fimc_dev *fimc)
+{
+	struct fimc_source_info *si = &fimc->vid_cap.source_config;
+	struct fimc_ctx *ctx = fimc->vid_cap.ctx;
+	int ret;
+	unsigned long flags;
+
+	if (ctx == NULL || ctx->s_frame.fmt == NULL)
+		return -EINVAL;
+
+	if (si->fimc_bus_type == FIMC_BUS_TYPE_ISP_WRITEBACK) {
+		ret = fimc_hw_camblk_cfg_writeback(fimc);
+		if (ret < 0)
+			return ret;
+	}
+
+	spin_lock_irqsave(&fimc->slock, flags);
+	fimc_prepare_dma_offset(ctx, &ctx->d_frame);
+	fimc_set_yuv_order(ctx);
+
+	fimc_hw_set_camera_polarity(fimc, si);
+	fimc_hw_set_camera_type(fimc, si);
+	fimc_hw_set_camera_source(fimc, si);
+	fimc_hw_set_camera_offset(fimc, &ctx->s_frame);
+
+	ret = fimc_set_scaler_info(ctx);
+	if (!ret) {
+		fimc_hw_set_input_path(ctx);
+		fimc_hw_set_prescaler(ctx);
+		fimc_hw_set_mainscaler(ctx);
+		fimc_hw_set_target_format(ctx);
+		fimc_hw_set_rotation(ctx);
+		fimc_hw_set_effect(ctx);
+		fimc_hw_set_output_path(ctx);
+		fimc_hw_set_out_dma(ctx);
+		if (fimc->drv_data->alpha_color)
+			fimc_hw_set_rgb_alpha(ctx);
+		clear_bit(ST_CAPT_APPLY_CFG, &fimc->state);
+	}
+	spin_unlock_irqrestore(&fimc->slock, flags);
+	return ret;
+}
+
+/*
+ * Reinitialize the driver so it is ready to start the streaming again.
+ * Set fimc->state to indicate stream off and the hardware shut down state.
+ * If not suspending (@suspend is false), return any buffers to videobuf2.
+ * Otherwise put any owned buffers onto the pending buffers queue, so they
+ * can be re-spun when the device is being resumed. Also perform FIMC
+ * software reset and disable streaming on the whole pipeline if required.
+ */
+static int fimc_capture_state_cleanup(struct fimc_dev *fimc, bool suspend)
+{
+	struct fimc_vid_cap *cap = &fimc->vid_cap;
+	struct fimc_vid_buffer *buf;
+	unsigned long flags;
+	bool streaming;
+
+	spin_lock_irqsave(&fimc->slock, flags);
+	streaming = fimc->state & (1 << ST_CAPT_ISP_STREAM);
+
+	fimc->state &= ~(1 << ST_CAPT_RUN | 1 << ST_CAPT_SHUT |
+			 1 << ST_CAPT_STREAM | 1 << ST_CAPT_ISP_STREAM);
+	if (suspend)
+		fimc->state |= (1 << ST_CAPT_SUSPENDED);
+	else
+		fimc->state &= ~(1 << ST_CAPT_PEND | 1 << ST_CAPT_SUSPENDED);
+
+	/* Release unused buffers */
+	while (!suspend && !list_empty(&cap->pending_buf_q)) {
+		buf = fimc_pending_queue_pop(cap);
+		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+	}
+	/* If suspending put unused buffers onto pending queue */
+	while (!list_empty(&cap->active_buf_q)) {
+		buf = fimc_active_queue_pop(cap);
+		if (suspend)
+			fimc_pending_queue_add(cap, buf);
+		else
+			vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+	}
+
+	fimc_hw_reset(fimc);
+	cap->buf_index = 0;
+
+	spin_unlock_irqrestore(&fimc->slock, flags);
+
+	if (streaming)
+		return fimc_pipeline_call(&cap->ve, set_stream, 0);
+	else
+		return 0;
+}
+
+static int fimc_stop_capture(struct fimc_dev *fimc, bool suspend)
+{
+	unsigned long flags;
+
+	if (!fimc_capture_active(fimc))
+		return 0;
+
+	spin_lock_irqsave(&fimc->slock, flags);
+	set_bit(ST_CAPT_SHUT, &fimc->state);
+	fimc_deactivate_capture(fimc);
+	spin_unlock_irqrestore(&fimc->slock, flags);
+
+	wait_event_timeout(fimc->irq_queue,
+			   !test_bit(ST_CAPT_SHUT, &fimc->state),
+			   (2*HZ/10)); /* 200 ms */
+
+	return fimc_capture_state_cleanup(fimc, suspend);
+}
+
+/**
+ * fimc_capture_config_update - apply the camera interface configuration
+ * @ctx: FIMC capture context
+ *
+ * To be called from within the interrupt handler with fimc.slock
+ * spinlock held. It updates the camera pixel crop, rotation and
+ * image flip in H/W.
+ */
+static int fimc_capture_config_update(struct fimc_ctx *ctx)
+{
+	struct fimc_dev *fimc = ctx->fimc_dev;
+	int ret;
+
+	fimc_hw_set_camera_offset(fimc, &ctx->s_frame);
+
+	ret = fimc_set_scaler_info(ctx);
+	if (ret)
+		return ret;
+
+	fimc_hw_set_prescaler(ctx);
+	fimc_hw_set_mainscaler(ctx);
+	fimc_hw_set_target_format(ctx);
+	fimc_hw_set_rotation(ctx);
+	fimc_hw_set_effect(ctx);
+	fimc_prepare_dma_offset(ctx, &ctx->d_frame);
+	fimc_hw_set_out_dma(ctx);
+	if (fimc->drv_data->alpha_color)
+		fimc_hw_set_rgb_alpha(ctx);
+
+	clear_bit(ST_CAPT_APPLY_CFG, &fimc->state);
+	return ret;
+}
+
+void fimc_capture_irq_handler(struct fimc_dev *fimc, int deq_buf)
+{
+	struct fimc_vid_cap *cap = &fimc->vid_cap;
+	struct fimc_pipeline *p = to_fimc_pipeline(cap->ve.pipe);
+	struct v4l2_subdev *csis = p->subdevs[IDX_CSIS];
+	struct fimc_frame *f = &cap->ctx->d_frame;
+	struct fimc_vid_buffer *v_buf;
+
+	if (test_and_clear_bit(ST_CAPT_SHUT, &fimc->state)) {
+		wake_up(&fimc->irq_queue);
+		goto done;
+	}
+
+	if (!list_empty(&cap->active_buf_q) &&
+	    test_bit(ST_CAPT_RUN, &fimc->state) && deq_buf) {
+		v_buf = fimc_active_queue_pop(cap);
+
+		v_buf->vb.vb2_buf.timestamp = ktime_get_ns();
+		v_buf->vb.sequence = cap->frame_count++;
+
+		vb2_buffer_done(&v_buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
+	}
+
+	if (!list_empty(&cap->pending_buf_q)) {
+
+		v_buf = fimc_pending_queue_pop(cap);
+		fimc_hw_set_output_addr(fimc, &v_buf->paddr, cap->buf_index);
+		v_buf->index = cap->buf_index;
+
+		/* Move the buffer to the capture active queue */
+		fimc_active_queue_add(cap, v_buf);
+
+		dbg("next frame: %d, done frame: %d",
+		    fimc_hw_get_frame_index(fimc), v_buf->index);
+
+		if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
+			cap->buf_index = 0;
+	}
+	/*
+	 * Set up a buffer at MIPI-CSIS if current image format
+	 * requires the frame embedded data capture.
+	 */
+	if (f->fmt->mdataplanes && !list_empty(&cap->active_buf_q)) {
+		unsigned int plane = ffs(f->fmt->mdataplanes) - 1;
+		unsigned int size = f->payload[plane];
+		s32 index = fimc_hw_get_frame_index(fimc);
+		void *vaddr;
+
+		list_for_each_entry(v_buf, &cap->active_buf_q, list) {
+			if (v_buf->index != index)
+				continue;
+			vaddr = vb2_plane_vaddr(&v_buf->vb.vb2_buf, plane);
+			v4l2_subdev_call(csis, video, s_rx_buffer,
+					 vaddr, &size);
+			break;
+		}
+	}
+
+	if (cap->active_buf_cnt == 0) {
+		if (deq_buf)
+			clear_bit(ST_CAPT_RUN, &fimc->state);
+
+		if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
+			cap->buf_index = 0;
+	} else {
+		set_bit(ST_CAPT_RUN, &fimc->state);
+	}
+
+	if (test_bit(ST_CAPT_APPLY_CFG, &fimc->state))
+		fimc_capture_config_update(cap->ctx);
+done:
+	if (cap->active_buf_cnt == 1) {
+		fimc_deactivate_capture(fimc);
+		clear_bit(ST_CAPT_STREAM, &fimc->state);
+	}
+
+	dbg("frame: %d, active_buf_cnt: %d",
+	    fimc_hw_get_frame_index(fimc), cap->active_buf_cnt);
+}
+
+
+static int start_streaming(struct vb2_queue *q, unsigned int count)
+{
+	struct fimc_ctx *ctx = q->drv_priv;
+	struct fimc_dev *fimc = ctx->fimc_dev;
+	struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
+	int min_bufs;
+	int ret;
+
+	vid_cap->frame_count = 0;
+
+	ret = fimc_capture_hw_init(fimc);
+	if (ret) {
+		fimc_capture_state_cleanup(fimc, false);
+		return ret;
+	}
+
+	set_bit(ST_CAPT_PEND, &fimc->state);
+
+	min_bufs = fimc->vid_cap.reqbufs_count > 1 ? 2 : 1;
+
+	if (vid_cap->active_buf_cnt >= min_bufs &&
+	    !test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) {
+		fimc_activate_capture(ctx);
+
+		if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state))
+			return fimc_pipeline_call(&vid_cap->ve, set_stream, 1);
+	}
+
+	return 0;
+}
+
+static void stop_streaming(struct vb2_queue *q)
+{
+	struct fimc_ctx *ctx = q->drv_priv;
+	struct fimc_dev *fimc = ctx->fimc_dev;
+
+	if (!fimc_capture_active(fimc))
+		return;
+
+	fimc_stop_capture(fimc, false);
+}
+
+int fimc_capture_suspend(struct fimc_dev *fimc)
+{
+	bool suspend = fimc_capture_busy(fimc);
+
+	int ret = fimc_stop_capture(fimc, suspend);
+	if (ret)
+		return ret;
+	return fimc_pipeline_call(&fimc->vid_cap.ve, close);
+}
+
+static void buffer_queue(struct vb2_buffer *vb);
+
+int fimc_capture_resume(struct fimc_dev *fimc)
+{
+	struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
+	struct exynos_video_entity *ve = &vid_cap->ve;
+	struct fimc_vid_buffer *buf;
+	int i;
+
+	if (!test_and_clear_bit(ST_CAPT_SUSPENDED, &fimc->state))
+		return 0;
+
+	INIT_LIST_HEAD(&fimc->vid_cap.active_buf_q);
+	vid_cap->buf_index = 0;
+	fimc_pipeline_call(ve, open, &ve->vdev.entity, false);
+	fimc_capture_hw_init(fimc);
+
+	clear_bit(ST_CAPT_SUSPENDED, &fimc->state);
+
+	for (i = 0; i < vid_cap->reqbufs_count; i++) {
+		if (list_empty(&vid_cap->pending_buf_q))
+			break;
+		buf = fimc_pending_queue_pop(vid_cap);
+		buffer_queue(&buf->vb.vb2_buf);
+	}
+	return 0;
+
+}
+
+static int queue_setup(struct vb2_queue *vq,
+		       unsigned int *num_buffers, unsigned int *num_planes,
+		       unsigned int sizes[], struct device *alloc_devs[])
+{
+	struct fimc_ctx *ctx = vq->drv_priv;
+	struct fimc_frame *frame = &ctx->d_frame;
+	struct fimc_fmt *fmt = frame->fmt;
+	unsigned long wh = frame->f_width * frame->f_height;
+	int i;
+
+	if (fmt == NULL)
+		return -EINVAL;
+
+	if (*num_planes) {
+		if (*num_planes != fmt->memplanes)
+			return -EINVAL;
+		for (i = 0; i < *num_planes; i++)
+			if (sizes[i] < (wh * fmt->depth[i]) / 8)
+				return -EINVAL;
+		return 0;
+	}
+
+	*num_planes = fmt->memplanes;
+
+	for (i = 0; i < fmt->memplanes; i++) {
+		unsigned int size = (wh * fmt->depth[i]) / 8;
+
+		if (fimc_fmt_is_user_defined(fmt->color))
+			sizes[i] = frame->payload[i];
+		else
+			sizes[i] = max_t(u32, size, frame->payload[i]);
+	}
+
+	return 0;
+}
+
+static int buffer_prepare(struct vb2_buffer *vb)
+{
+	struct vb2_queue *vq = vb->vb2_queue;
+	struct fimc_ctx *ctx = vq->drv_priv;
+	int i;
+
+	if (ctx->d_frame.fmt == NULL)
+		return -EINVAL;
+
+	for (i = 0; i < ctx->d_frame.fmt->memplanes; i++) {
+		unsigned long size = ctx->d_frame.payload[i];
+
+		if (vb2_plane_size(vb, i) < size) {
+			v4l2_err(&ctx->fimc_dev->vid_cap.ve.vdev,
+				 "User buffer too small (%ld < %ld)\n",
+				 vb2_plane_size(vb, i), size);
+			return -EINVAL;
+		}
+		vb2_set_plane_payload(vb, i, size);
+	}
+
+	return 0;
+}
+
+static void buffer_queue(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct fimc_vid_buffer *buf
+		= container_of(vbuf, struct fimc_vid_buffer, vb);
+	struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+	struct fimc_dev *fimc = ctx->fimc_dev;
+	struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
+	struct exynos_video_entity *ve = &vid_cap->ve;
+	unsigned long flags;
+	int min_bufs;
+
+	spin_lock_irqsave(&fimc->slock, flags);
+	fimc_prepare_addr(ctx, &buf->vb.vb2_buf, &ctx->d_frame, &buf->paddr);
+
+	if (!test_bit(ST_CAPT_SUSPENDED, &fimc->state) &&
+	    !test_bit(ST_CAPT_STREAM, &fimc->state) &&
+	    vid_cap->active_buf_cnt < FIMC_MAX_OUT_BUFS) {
+		/* Setup the buffer directly for processing. */
+		int buf_id = (vid_cap->reqbufs_count == 1) ? -1 :
+				vid_cap->buf_index;
+
+		fimc_hw_set_output_addr(fimc, &buf->paddr, buf_id);
+		buf->index = vid_cap->buf_index;
+		fimc_active_queue_add(vid_cap, buf);
+
+		if (++vid_cap->buf_index >= FIMC_MAX_OUT_BUFS)
+			vid_cap->buf_index = 0;
+	} else {
+		fimc_pending_queue_add(vid_cap, buf);
+	}
+
+	min_bufs = vid_cap->reqbufs_count > 1 ? 2 : 1;
+
+
+	if (vb2_is_streaming(&vid_cap->vbq) &&
+	    vid_cap->active_buf_cnt >= min_bufs &&
+	    !test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) {
+		int ret;
+
+		fimc_activate_capture(ctx);
+		spin_unlock_irqrestore(&fimc->slock, flags);
+
+		if (test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state))
+			return;
+
+		ret = fimc_pipeline_call(ve, set_stream, 1);
+		if (ret < 0)
+			v4l2_err(&ve->vdev, "stream on failed: %d\n", ret);
+		return;
+	}
+	spin_unlock_irqrestore(&fimc->slock, flags);
+}
+
+static const struct vb2_ops fimc_capture_qops = {
+	.queue_setup		= queue_setup,
+	.buf_prepare		= buffer_prepare,
+	.buf_queue		= buffer_queue,
+	.wait_prepare		= vb2_ops_wait_prepare,
+	.wait_finish		= vb2_ops_wait_finish,
+	.start_streaming	= start_streaming,
+	.stop_streaming		= stop_streaming,
+};
+
+static int fimc_capture_set_default_format(struct fimc_dev *fimc);
+
+static int fimc_capture_open(struct file *file)
+{
+	struct fimc_dev *fimc = video_drvdata(file);
+	struct fimc_vid_cap *vc = &fimc->vid_cap;
+	struct exynos_video_entity *ve = &vc->ve;
+	int ret = -EBUSY;
+
+	dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
+
+	mutex_lock(&fimc->lock);
+
+	if (fimc_m2m_active(fimc))
+		goto unlock;
+
+	set_bit(ST_CAPT_BUSY, &fimc->state);
+	ret = pm_runtime_get_sync(&fimc->pdev->dev);
+	if (ret < 0)
+		goto unlock;
+
+	ret = v4l2_fh_open(file);
+	if (ret) {
+		pm_runtime_put_sync(&fimc->pdev->dev);
+		goto unlock;
+	}
+
+	if (v4l2_fh_is_singular_file(file)) {
+		fimc_md_graph_lock(ve);
+
+		ret = fimc_pipeline_call(ve, open, &ve->vdev.entity, true);
+
+		if (ret == 0 && vc->user_subdev_api && vc->inh_sensor_ctrls) {
+			/*
+			 * Recreate controls of the the video node to drop
+			 * any controls inherited from the sensor subdev.
+			 */
+			fimc_ctrls_delete(vc->ctx);
+
+			ret = fimc_ctrls_create(vc->ctx);
+			if (ret == 0)
+				vc->inh_sensor_ctrls = false;
+		}
+		if (ret == 0)
+			ve->vdev.entity.use_count++;
+
+		fimc_md_graph_unlock(ve);
+
+		if (ret == 0)
+			ret = fimc_capture_set_default_format(fimc);
+
+		if (ret < 0) {
+			clear_bit(ST_CAPT_BUSY, &fimc->state);
+			pm_runtime_put_sync(&fimc->pdev->dev);
+			v4l2_fh_release(file);
+		}
+	}
+unlock:
+	mutex_unlock(&fimc->lock);
+	return ret;
+}
+
+static int fimc_capture_release(struct file *file)
+{
+	struct fimc_dev *fimc = video_drvdata(file);
+	struct fimc_vid_cap *vc = &fimc->vid_cap;
+	bool close = v4l2_fh_is_singular_file(file);
+	int ret;
+
+	dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
+
+	mutex_lock(&fimc->lock);
+
+	if (close && vc->streaming) {
+		media_pipeline_stop(&vc->ve.vdev.entity);
+		vc->streaming = false;
+	}
+
+	ret = _vb2_fop_release(file, NULL);
+
+	if (close) {
+		clear_bit(ST_CAPT_BUSY, &fimc->state);
+		fimc_pipeline_call(&vc->ve, close);
+		clear_bit(ST_CAPT_SUSPENDED, &fimc->state);
+
+		fimc_md_graph_lock(&vc->ve);
+		vc->ve.vdev.entity.use_count--;
+		fimc_md_graph_unlock(&vc->ve);
+	}
+
+	pm_runtime_put_sync(&fimc->pdev->dev);
+	mutex_unlock(&fimc->lock);
+
+	return ret;
+}
+
+static const struct v4l2_file_operations fimc_capture_fops = {
+	.owner		= THIS_MODULE,
+	.open		= fimc_capture_open,
+	.release	= fimc_capture_release,
+	.poll		= vb2_fop_poll,
+	.unlocked_ioctl	= video_ioctl2,
+	.mmap		= vb2_fop_mmap,
+};
+
+/*
+ * Format and crop negotiation helpers
+ */
+
+static struct fimc_fmt *fimc_capture_try_format(struct fimc_ctx *ctx,
+						u32 *width, u32 *height,
+						u32 *code, u32 *fourcc, int pad)
+{
+	bool rotation = ctx->rotation == 90 || ctx->rotation == 270;
+	struct fimc_dev *fimc = ctx->fimc_dev;
+	const struct fimc_variant *var = fimc->variant;
+	const struct fimc_pix_limit *pl = var->pix_limit;
+	struct fimc_frame *dst = &ctx->d_frame;
+	u32 depth, min_w, max_w, min_h, align_h = 3;
+	u32 mask = FMT_FLAGS_CAM;
+	struct fimc_fmt *ffmt;
+
+	/* Conversion from/to JPEG or User Defined format is not supported */
+	if (code && ctx->s_frame.fmt && pad == FIMC_SD_PAD_SOURCE &&
+	    fimc_fmt_is_user_defined(ctx->s_frame.fmt->color))
+		*code = ctx->s_frame.fmt->mbus_code;
+
+	if (fourcc && *fourcc != V4L2_PIX_FMT_JPEG && pad == FIMC_SD_PAD_SOURCE)
+		mask |= FMT_FLAGS_M2M;
+
+	if (pad == FIMC_SD_PAD_SINK_FIFO)
+		mask = FMT_FLAGS_WRITEBACK;
+
+	ffmt = fimc_find_format(fourcc, code, mask, 0);
+	if (WARN_ON(!ffmt))
+		return NULL;
+
+	if (code)
+		*code = ffmt->mbus_code;
+	if (fourcc)
+		*fourcc = ffmt->fourcc;
+
+	if (pad != FIMC_SD_PAD_SOURCE) {
+		max_w = fimc_fmt_is_user_defined(ffmt->color) ?
+			pl->scaler_dis_w : pl->scaler_en_w;
+		/* Apply the camera input interface pixel constraints */
+		v4l_bound_align_image(width, max_t(u32, *width, 32), max_w, 4,
+				      height, max_t(u32, *height, 32),
+				      FIMC_CAMIF_MAX_HEIGHT,
+				      fimc_fmt_is_user_defined(ffmt->color) ?
+				      3 : 1,
+				      0);
+		return ffmt;
+	}
+	/* Can't scale or crop in transparent (JPEG) transfer mode */
+	if (fimc_fmt_is_user_defined(ffmt->color)) {
+		*width  = ctx->s_frame.f_width;
+		*height = ctx->s_frame.f_height;
+		return ffmt;
+	}
+	/* Apply the scaler and the output DMA constraints */
+	max_w = rotation ? pl->out_rot_en_w : pl->out_rot_dis_w;
+	if (ctx->state & FIMC_COMPOSE) {
+		min_w = dst->offs_h + dst->width;
+		min_h = dst->offs_v + dst->height;
+	} else {
+		min_w = var->min_out_pixsize;
+		min_h = var->min_out_pixsize;
+	}
+	if (var->min_vsize_align == 1 && !rotation)
+		align_h = fimc_fmt_is_rgb(ffmt->color) ? 0 : 1;
+
+	depth = fimc_get_format_depth(ffmt);
+	v4l_bound_align_image(width, min_w, max_w,
+			      ffs(var->min_out_pixsize) - 1,
+			      height, min_h, FIMC_CAMIF_MAX_HEIGHT,
+			      align_h,
+			      64/(ALIGN(depth, 8)));
+
+	dbg("pad%d: code: 0x%x, %dx%d. dst fmt: %dx%d",
+	    pad, code ? *code : 0, *width, *height,
+	    dst->f_width, dst->f_height);
+
+	return ffmt;
+}
+
+static void fimc_capture_try_selection(struct fimc_ctx *ctx,
+				       struct v4l2_rect *r,
+				       int target)
+{
+	bool rotate = ctx->rotation == 90 || ctx->rotation == 270;
+	struct fimc_dev *fimc = ctx->fimc_dev;
+	const struct fimc_variant *var = fimc->variant;
+	const struct fimc_pix_limit *pl = var->pix_limit;
+	struct fimc_frame *sink = &ctx->s_frame;
+	u32 max_w, max_h, min_w = 0, min_h = 0, min_sz;
+	u32 align_sz = 0, align_h = 4;
+	u32 max_sc_h, max_sc_v;
+
+	/* In JPEG transparent transfer mode cropping is not supported */
+	if (fimc_fmt_is_user_defined(ctx->d_frame.fmt->color)) {
+		r->width  = sink->f_width;
+		r->height = sink->f_height;
+		r->left   = r->top = 0;
+		return;
+	}
+	if (target == V4L2_SEL_TGT_COMPOSE) {
+		u32 tmp_min_h = ffs(sink->width) - 3;
+		u32 tmp_min_v = ffs(sink->height) - 1;
+
+		if (ctx->rotation != 90 && ctx->rotation != 270)
+			align_h = 1;
+		max_sc_h = min(SCALER_MAX_HRATIO, 1 << tmp_min_h);
+		max_sc_v = min(SCALER_MAX_VRATIO, 1 << tmp_min_v);
+		min_sz = var->min_out_pixsize;
+	} else {
+		u32 depth = fimc_get_format_depth(sink->fmt);
+		align_sz = 64/ALIGN(depth, 8);
+		min_sz = var->min_inp_pixsize;
+		min_w = min_h = min_sz;
+		max_sc_h = max_sc_v = 1;
+	}
+	/*
+	 * For the compose rectangle the following constraints must be met:
+	 * - it must fit in the sink pad format rectangle (f_width/f_height);
+	 * - maximum downscaling ratio is 64;
+	 * - maximum crop size depends if the rotator is used or not;
+	 * - the sink pad format width/height must be 4 multiple of the
+	 *   prescaler ratios determined by sink pad size and source pad crop,
+	 *   the prescaler ratio is returned by fimc_get_scaler_factor().
+	 */
+	max_w = min_t(u32,
+		      rotate ? pl->out_rot_en_w : pl->out_rot_dis_w,
+		      rotate ? sink->f_height : sink->f_width);
+	max_h = min_t(u32, FIMC_CAMIF_MAX_HEIGHT, sink->f_height);
+
+	if (target == V4L2_SEL_TGT_COMPOSE) {
+		min_w = min_t(u32, max_w, sink->f_width / max_sc_h);
+		min_h = min_t(u32, max_h, sink->f_height / max_sc_v);
+		if (rotate) {
+			swap(max_sc_h, max_sc_v);
+			swap(min_w, min_h);
+		}
+	}
+	v4l_bound_align_image(&r->width, min_w, max_w, ffs(min_sz) - 1,
+			      &r->height, min_h, max_h, align_h,
+			      align_sz);
+	/* Adjust left/top if crop/compose rectangle is out of bounds */
+	r->left = clamp_t(u32, r->left, 0, sink->f_width - r->width);
+	r->top  = clamp_t(u32, r->top, 0, sink->f_height - r->height);
+	r->left = round_down(r->left, var->hor_offs_align);
+
+	dbg("target %#x: (%d,%d)/%dx%d, sink fmt: %dx%d",
+	    target, r->left, r->top, r->width, r->height,
+	    sink->f_width, sink->f_height);
+}
+
+/*
+ * The video node ioctl operations
+ */
+static int fimc_cap_querycap(struct file *file, void *priv,
+					struct v4l2_capability *cap)
+{
+	struct fimc_dev *fimc = video_drvdata(file);
+
+	__fimc_vidioc_querycap(&fimc->pdev->dev, cap, V4L2_CAP_STREAMING |
+					V4L2_CAP_VIDEO_CAPTURE_MPLANE);
+	return 0;
+}
+
+static int fimc_cap_enum_fmt_mplane(struct file *file, void *priv,
+				    struct v4l2_fmtdesc *f)
+{
+	struct fimc_fmt *fmt;
+
+	fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM | FMT_FLAGS_M2M,
+			       f->index);
+	if (!fmt)
+		return -EINVAL;
+	strncpy(f->description, fmt->name, sizeof(f->description) - 1);
+	f->pixelformat = fmt->fourcc;
+	if (fmt->fourcc == MEDIA_BUS_FMT_JPEG_1X8)
+		f->flags |= V4L2_FMT_FLAG_COMPRESSED;
+	return 0;
+}
+
+static struct media_entity *fimc_pipeline_get_head(struct media_entity *me)
+{
+	struct media_pad *pad = &me->pads[0];
+
+	while (!(pad->flags & MEDIA_PAD_FL_SOURCE)) {
+		pad = media_entity_remote_pad(pad);
+		if (!pad)
+			break;
+		me = pad->entity;
+		pad = &me->pads[0];
+	}
+
+	return me;
+}
+
+/**
+ * fimc_pipeline_try_format - negotiate and/or set formats at pipeline
+ *                            elements
+ * @ctx: FIMC capture context
+ * @tfmt: media bus format to try/set on subdevs
+ * @fmt_id: fimc pixel format id corresponding to returned @tfmt (output)
+ * @set: true to set format on subdevs, false to try only
+ */
+static int fimc_pipeline_try_format(struct fimc_ctx *ctx,
+				    struct v4l2_mbus_framefmt *tfmt,
+				    struct fimc_fmt **fmt_id,
+				    bool set)
+{
+	struct fimc_dev *fimc = ctx->fimc_dev;
+	struct fimc_pipeline *p = to_fimc_pipeline(fimc->vid_cap.ve.pipe);
+	struct v4l2_subdev *sd = p->subdevs[IDX_SENSOR];
+	struct v4l2_subdev_format sfmt;
+	struct v4l2_mbus_framefmt *mf = &sfmt.format;
+	struct media_entity *me;
+	struct fimc_fmt *ffmt;
+	struct media_pad *pad;
+	int ret, i = 1;
+	u32 fcc;
+
+	if (WARN_ON(!sd || !tfmt))
+		return -EINVAL;
+
+	memset(&sfmt, 0, sizeof(sfmt));
+	sfmt.format = *tfmt;
+	sfmt.which = set ? V4L2_SUBDEV_FORMAT_ACTIVE : V4L2_SUBDEV_FORMAT_TRY;
+
+	me = fimc_pipeline_get_head(&sd->entity);
+
+	while (1) {
+		ffmt = fimc_find_format(NULL, mf->code != 0 ? &mf->code : NULL,
+					FMT_FLAGS_CAM, i++);
+		if (ffmt == NULL) {
+			/*
+			 * Notify user-space if common pixel code for
+			 * host and sensor does not exist.
+			 */
+			return -EINVAL;
+		}
+		mf->code = tfmt->code = ffmt->mbus_code;
+
+		/* set format on all pipeline subdevs */
+		while (me != &fimc->vid_cap.subdev.entity) {
+			sd = media_entity_to_v4l2_subdev(me);
+
+			sfmt.pad = 0;
+			ret = v4l2_subdev_call(sd, pad, set_fmt, NULL, &sfmt);
+			if (ret)
+				return ret;
+
+			if (me->pads[0].flags & MEDIA_PAD_FL_SINK) {
+				sfmt.pad = me->num_pads - 1;
+				mf->code = tfmt->code;
+				ret = v4l2_subdev_call(sd, pad, set_fmt, NULL,
+									&sfmt);
+				if (ret)
+					return ret;
+			}
+
+			pad = media_entity_remote_pad(&me->pads[sfmt.pad]);
+			if (!pad)
+				return -EINVAL;
+			me = pad->entity;
+		}
+
+		if (mf->code != tfmt->code)
+			continue;
+
+		fcc = ffmt->fourcc;
+		tfmt->width  = mf->width;
+		tfmt->height = mf->height;
+		ffmt = fimc_capture_try_format(ctx, &tfmt->width, &tfmt->height,
+					NULL, &fcc, FIMC_SD_PAD_SINK_CAM);
+		ffmt = fimc_capture_try_format(ctx, &tfmt->width, &tfmt->height,
+					NULL, &fcc, FIMC_SD_PAD_SOURCE);
+		if (ffmt && ffmt->mbus_code)
+			mf->code = ffmt->mbus_code;
+		if (mf->width != tfmt->width || mf->height != tfmt->height)
+			continue;
+		tfmt->code = mf->code;
+		break;
+	}
+
+	if (fmt_id && ffmt)
+		*fmt_id = ffmt;
+	*tfmt = *mf;
+
+	return 0;
+}
+
+/**
+ * fimc_get_sensor_frame_desc - query the sensor for media bus frame parameters
+ * @sensor: pointer to the sensor subdev
+ * @plane_fmt: provides plane sizes corresponding to the frame layout entries
+ * @num_planes: number of planes
+ * @try: true to set the frame parameters, false to query only
+ *
+ * This function is used by this driver only for compressed/blob data formats.
+ */
+static int fimc_get_sensor_frame_desc(struct v4l2_subdev *sensor,
+				      struct v4l2_plane_pix_format *plane_fmt,
+				      unsigned int num_planes, bool try)
+{
+	struct v4l2_mbus_frame_desc fd;
+	int i, ret;
+	int pad;
+
+	for (i = 0; i < num_planes; i++)
+		fd.entry[i].length = plane_fmt[i].sizeimage;
+
+	pad = sensor->entity.num_pads - 1;
+	if (try)
+		ret = v4l2_subdev_call(sensor, pad, set_frame_desc, pad, &fd);
+	else
+		ret = v4l2_subdev_call(sensor, pad, get_frame_desc, pad, &fd);
+
+	if (ret < 0)
+		return ret;
+
+	if (num_planes != fd.num_entries)
+		return -EINVAL;
+
+	for (i = 0; i < num_planes; i++)
+		plane_fmt[i].sizeimage = fd.entry[i].length;
+
+	if (fd.entry[0].length > FIMC_MAX_JPEG_BUF_SIZE) {
+		v4l2_err(sensor->v4l2_dev,  "Unsupported buffer size: %u\n",
+			 fd.entry[0].length);
+
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int fimc_cap_g_fmt_mplane(struct file *file, void *fh,
+				 struct v4l2_format *f)
+{
+	struct fimc_dev *fimc = video_drvdata(file);
+
+	__fimc_get_format(&fimc->vid_cap.ctx->d_frame, f);
+	return 0;
+}
+
+/*
+ * Try or set format on the fimc.X.capture video node and additionally
+ * on the whole pipeline if @try is false.
+ * Locking: the caller must _not_ hold the graph mutex.
+ */
+static int __video_try_or_set_format(struct fimc_dev *fimc,
+				     struct v4l2_format *f, bool try,
+				     struct fimc_fmt **inp_fmt,
+				     struct fimc_fmt **out_fmt)
+{
+	struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
+	struct fimc_vid_cap *vc = &fimc->vid_cap;
+	struct exynos_video_entity *ve = &vc->ve;
+	struct fimc_ctx *ctx = vc->ctx;
+	unsigned int width = 0, height = 0;
+	int ret = 0;
+
+	/* Pre-configure format at the camera input interface, for JPEG only */
+	if (fimc_jpeg_fourcc(pix->pixelformat)) {
+		fimc_capture_try_format(ctx, &pix->width, &pix->height,
+					NULL, &pix->pixelformat,
+					FIMC_SD_PAD_SINK_CAM);
+		if (try) {
+			width = pix->width;
+			height = pix->height;
+		} else {
+			ctx->s_frame.f_width = pix->width;
+			ctx->s_frame.f_height = pix->height;
+		}
+	}
+
+	/* Try the format at the scaler and the DMA output */
+	*out_fmt = fimc_capture_try_format(ctx, &pix->width, &pix->height,
+					  NULL, &pix->pixelformat,
+					  FIMC_SD_PAD_SOURCE);
+	if (*out_fmt == NULL)
+		return -EINVAL;
+
+	/* Restore image width/height for JPEG (no resizing supported). */
+	if (try && fimc_jpeg_fourcc(pix->pixelformat)) {
+		pix->width = width;
+		pix->height = height;
+	}
+
+	/* Try to match format at the host and the sensor */
+	if (!vc->user_subdev_api) {
+		struct v4l2_mbus_framefmt mbus_fmt;
+		struct v4l2_mbus_framefmt *mf;
+
+		mf = try ? &mbus_fmt : &fimc->vid_cap.ci_fmt;
+
+		mf->code = (*out_fmt)->mbus_code;
+		mf->width = pix->width;
+		mf->height = pix->height;
+
+		fimc_md_graph_lock(ve);
+		ret = fimc_pipeline_try_format(ctx, mf, inp_fmt, try);
+		fimc_md_graph_unlock(ve);
+
+		if (ret < 0)
+			return ret;
+
+		pix->width = mf->width;
+		pix->height = mf->height;
+	}
+
+	fimc_adjust_mplane_format(*out_fmt, pix->width, pix->height, pix);
+
+	if ((*out_fmt)->flags & FMT_FLAGS_COMPRESSED) {
+		struct v4l2_subdev *sensor;
+
+		fimc_md_graph_lock(ve);
+
+		sensor = __fimc_md_get_subdev(ve->pipe, IDX_SENSOR);
+		if (sensor)
+			fimc_get_sensor_frame_desc(sensor, pix->plane_fmt,
+						   (*out_fmt)->memplanes, try);
+		else
+			ret = -EPIPE;
+
+		fimc_md_graph_unlock(ve);
+	}
+
+	return ret;
+}
+
+static int fimc_cap_try_fmt_mplane(struct file *file, void *fh,
+				   struct v4l2_format *f)
+{
+	struct fimc_dev *fimc = video_drvdata(file);
+	struct fimc_fmt *out_fmt = NULL, *inp_fmt = NULL;
+
+	return __video_try_or_set_format(fimc, f, true, &inp_fmt, &out_fmt);
+}
+
+static void fimc_capture_mark_jpeg_xfer(struct fimc_ctx *ctx,
+					enum fimc_color_fmt color)
+{
+	bool jpeg = fimc_fmt_is_user_defined(color);
+
+	ctx->scaler.enabled = !jpeg;
+	fimc_ctrls_activate(ctx, !jpeg);
+
+	if (jpeg)
+		set_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state);
+	else
+		clear_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state);
+}
+
+static int __fimc_capture_set_format(struct fimc_dev *fimc,
+				     struct v4l2_format *f)
+{
+	struct fimc_vid_cap *vc = &fimc->vid_cap;
+	struct fimc_ctx *ctx = vc->ctx;
+	struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
+	struct fimc_frame *ff = &ctx->d_frame;
+	struct fimc_fmt *inp_fmt = NULL;
+	int ret, i;
+
+	if (vb2_is_busy(&fimc->vid_cap.vbq))
+		return -EBUSY;
+
+	ret = __video_try_or_set_format(fimc, f, false, &inp_fmt, &ff->fmt);
+	if (ret < 0)
+		return ret;
+
+	/* Update RGB Alpha control state and value range */
+	fimc_alpha_ctrl_update(ctx);
+
+	for (i = 0; i < ff->fmt->memplanes; i++) {
+		ff->bytesperline[i] = pix->plane_fmt[i].bytesperline;
+		ff->payload[i] = pix->plane_fmt[i].sizeimage;
+	}
+
+	set_frame_bounds(ff, pix->width, pix->height);
+	/* Reset the composition rectangle if not yet configured */
+	if (!(ctx->state & FIMC_COMPOSE))
+		set_frame_crop(ff, 0, 0, pix->width, pix->height);
+
+	fimc_capture_mark_jpeg_xfer(ctx, ff->fmt->color);
+
+	/* Reset cropping and set format at the camera interface input */
+	if (!vc->user_subdev_api) {
+		ctx->s_frame.fmt = inp_fmt;
+		set_frame_bounds(&ctx->s_frame, pix->width, pix->height);
+		set_frame_crop(&ctx->s_frame, 0, 0, pix->width, pix->height);
+	}
+
+	return ret;
+}
+
+static int fimc_cap_s_fmt_mplane(struct file *file, void *priv,
+				 struct v4l2_format *f)
+{
+	struct fimc_dev *fimc = video_drvdata(file);
+
+	return __fimc_capture_set_format(fimc, f);
+}
+
+static int fimc_cap_enum_input(struct file *file, void *priv,
+			       struct v4l2_input *i)
+{
+	struct fimc_dev *fimc = video_drvdata(file);
+	struct exynos_video_entity *ve = &fimc->vid_cap.ve;
+	struct v4l2_subdev *sd;
+
+	if (i->index != 0)
+		return -EINVAL;
+
+	i->type = V4L2_INPUT_TYPE_CAMERA;
+	fimc_md_graph_lock(ve);
+	sd = __fimc_md_get_subdev(ve->pipe, IDX_SENSOR);
+	fimc_md_graph_unlock(ve);
+
+	if (sd)
+		strlcpy(i->name, sd->name, sizeof(i->name));
+
+	return 0;
+}
+
+static int fimc_cap_s_input(struct file *file, void *priv, unsigned int i)
+{
+	return i == 0 ? i : -EINVAL;
+}
+
+static int fimc_cap_g_input(struct file *file, void *priv, unsigned int *i)
+{
+	*i = 0;
+	return 0;
+}
+
+/**
+ * fimc_pipeline_validate - check for formats inconsistencies
+ *                          between source and sink pad of each link
+ * @fimc:	the FIMC device this context applies to
+ *
+ * Return 0 if all formats match or -EPIPE otherwise.
+ */
+static int fimc_pipeline_validate(struct fimc_dev *fimc)
+{
+	struct v4l2_subdev_format sink_fmt, src_fmt;
+	struct fimc_vid_cap *vc = &fimc->vid_cap;
+	struct v4l2_subdev *sd = &vc->subdev;
+	struct fimc_pipeline *p = to_fimc_pipeline(vc->ve.pipe);
+	struct media_pad *sink_pad, *src_pad;
+	int i, ret;
+
+	while (1) {
+		/*
+		 * Find current entity sink pad and any remote sink pad linked
+		 * to it. We stop if there is no sink pad in current entity or
+		 * it is not linked to any other remote entity.
+		 */
+		src_pad = NULL;
+
+		for (i = 0; i < sd->entity.num_pads; i++) {
+			struct media_pad *p = &sd->entity.pads[i];
+
+			if (p->flags & MEDIA_PAD_FL_SINK) {
+				sink_pad = p;
+				src_pad = media_entity_remote_pad(sink_pad);
+				if (src_pad)
+					break;
+			}
+		}
+
+		if (!src_pad || !is_media_entity_v4l2_subdev(src_pad->entity))
+			break;
+
+		/* Don't call FIMC subdev operation to avoid nested locking */
+		if (sd == &vc->subdev) {
+			struct fimc_frame *ff = &vc->ctx->s_frame;
+			sink_fmt.format.width = ff->f_width;
+			sink_fmt.format.height = ff->f_height;
+			sink_fmt.format.code = ff->fmt ? ff->fmt->mbus_code : 0;
+		} else {
+			sink_fmt.pad = sink_pad->index;
+			sink_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+			ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &sink_fmt);
+			if (ret < 0 && ret != -ENOIOCTLCMD)
+				return -EPIPE;
+		}
+
+		/* Retrieve format at the source pad */
+		sd = media_entity_to_v4l2_subdev(src_pad->entity);
+		src_fmt.pad = src_pad->index;
+		src_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+		ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &src_fmt);
+		if (ret < 0 && ret != -ENOIOCTLCMD)
+			return -EPIPE;
+
+		if (src_fmt.format.width != sink_fmt.format.width ||
+		    src_fmt.format.height != sink_fmt.format.height ||
+		    src_fmt.format.code != sink_fmt.format.code)
+			return -EPIPE;
+
+		if (sd == p->subdevs[IDX_SENSOR] &&
+		    fimc_user_defined_mbus_fmt(src_fmt.format.code)) {
+			struct v4l2_plane_pix_format plane_fmt[FIMC_MAX_PLANES];
+			struct fimc_frame *frame = &vc->ctx->d_frame;
+			unsigned int i;
+
+			ret = fimc_get_sensor_frame_desc(sd, plane_fmt,
+							 frame->fmt->memplanes,
+							 false);
+			if (ret < 0)
+				return -EPIPE;
+
+			for (i = 0; i < frame->fmt->memplanes; i++)
+				if (frame->payload[i] < plane_fmt[i].sizeimage)
+					return -EPIPE;
+		}
+	}
+	return 0;
+}
+
+static int fimc_cap_streamon(struct file *file, void *priv,
+			     enum v4l2_buf_type type)
+{
+	struct fimc_dev *fimc = video_drvdata(file);
+	struct fimc_vid_cap *vc = &fimc->vid_cap;
+	struct media_entity *entity = &vc->ve.vdev.entity;
+	struct fimc_source_info *si = NULL;
+	struct v4l2_subdev *sd;
+	int ret;
+
+	if (fimc_capture_active(fimc))
+		return -EBUSY;
+
+	ret = media_pipeline_start(entity, &vc->ve.pipe->mp);
+	if (ret < 0)
+		return ret;
+
+	sd = __fimc_md_get_subdev(vc->ve.pipe, IDX_SENSOR);
+	if (sd)
+		si = v4l2_get_subdev_hostdata(sd);
+
+	if (si == NULL) {
+		ret = -EPIPE;
+		goto err_p_stop;
+	}
+	/*
+	 * Save configuration data related to currently attached image
+	 * sensor or other data source, e.g. FIMC-IS.
+	 */
+	vc->source_config = *si;
+
+	if (vc->input == GRP_ID_FIMC_IS)
+		vc->source_config.fimc_bus_type = FIMC_BUS_TYPE_ISP_WRITEBACK;
+
+	if (vc->user_subdev_api) {
+		ret = fimc_pipeline_validate(fimc);
+		if (ret < 0)
+			goto err_p_stop;
+	}
+
+	ret = vb2_ioctl_streamon(file, priv, type);
+	if (!ret) {
+		vc->streaming = true;
+		return ret;
+	}
+
+err_p_stop:
+	media_pipeline_stop(entity);
+	return ret;
+}
+
+static int fimc_cap_streamoff(struct file *file, void *priv,
+			    enum v4l2_buf_type type)
+{
+	struct fimc_dev *fimc = video_drvdata(file);
+	struct fimc_vid_cap *vc = &fimc->vid_cap;
+	int ret;
+
+	ret = vb2_ioctl_streamoff(file, priv, type);
+	if (ret < 0)
+		return ret;
+
+	media_pipeline_stop(&vc->ve.vdev.entity);
+	vc->streaming = false;
+	return 0;
+}
+
+static int fimc_cap_reqbufs(struct file *file, void *priv,
+			    struct v4l2_requestbuffers *reqbufs)
+{
+	struct fimc_dev *fimc = video_drvdata(file);
+	int ret;
+
+	ret = vb2_ioctl_reqbufs(file, priv, reqbufs);
+
+	if (!ret)
+		fimc->vid_cap.reqbufs_count = reqbufs->count;
+
+	return ret;
+}
+
+static int fimc_cap_g_selection(struct file *file, void *fh,
+				struct v4l2_selection *s)
+{
+	struct fimc_dev *fimc = video_drvdata(file);
+	struct fimc_ctx *ctx = fimc->vid_cap.ctx;
+	struct fimc_frame *f = &ctx->s_frame;
+
+	if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	switch (s->target) {
+	case V4L2_SEL_TGT_COMPOSE_DEFAULT:
+	case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+		f = &ctx->d_frame;
+		/* fall through */
+	case V4L2_SEL_TGT_CROP_BOUNDS:
+	case V4L2_SEL_TGT_CROP_DEFAULT:
+		s->r.left = 0;
+		s->r.top = 0;
+		s->r.width = f->o_width;
+		s->r.height = f->o_height;
+		return 0;
+
+	case V4L2_SEL_TGT_COMPOSE:
+		f = &ctx->d_frame;
+		/* fall through */
+	case V4L2_SEL_TGT_CROP:
+		s->r.left = f->offs_h;
+		s->r.top = f->offs_v;
+		s->r.width = f->width;
+		s->r.height = f->height;
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+/* Return 1 if rectangle a is enclosed in rectangle b, or 0 otherwise. */
+static int enclosed_rectangle(struct v4l2_rect *a, struct v4l2_rect *b)
+{
+	if (a->left < b->left || a->top < b->top)
+		return 0;
+	if (a->left + a->width > b->left + b->width)
+		return 0;
+	if (a->top + a->height > b->top + b->height)
+		return 0;
+
+	return 1;
+}
+
+static int fimc_cap_s_selection(struct file *file, void *fh,
+				struct v4l2_selection *s)
+{
+	struct fimc_dev *fimc = video_drvdata(file);
+	struct fimc_ctx *ctx = fimc->vid_cap.ctx;
+	struct v4l2_rect rect = s->r;
+	struct fimc_frame *f;
+	unsigned long flags;
+
+	if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	if (s->target == V4L2_SEL_TGT_COMPOSE)
+		f = &ctx->d_frame;
+	else if (s->target == V4L2_SEL_TGT_CROP)
+		f = &ctx->s_frame;
+	else
+		return -EINVAL;
+
+	fimc_capture_try_selection(ctx, &rect, s->target);
+
+	if (s->flags & V4L2_SEL_FLAG_LE &&
+	    !enclosed_rectangle(&rect, &s->r))
+		return -ERANGE;
+
+	if (s->flags & V4L2_SEL_FLAG_GE &&
+	    !enclosed_rectangle(&s->r, &rect))
+		return -ERANGE;
+
+	s->r = rect;
+	spin_lock_irqsave(&fimc->slock, flags);
+	set_frame_crop(f, s->r.left, s->r.top, s->r.width,
+		       s->r.height);
+	spin_unlock_irqrestore(&fimc->slock, flags);
+
+	set_bit(ST_CAPT_APPLY_CFG, &fimc->state);
+	return 0;
+}
+
+static const struct v4l2_ioctl_ops fimc_capture_ioctl_ops = {
+	.vidioc_querycap		= fimc_cap_querycap,
+
+	.vidioc_enum_fmt_vid_cap_mplane	= fimc_cap_enum_fmt_mplane,
+	.vidioc_try_fmt_vid_cap_mplane	= fimc_cap_try_fmt_mplane,
+	.vidioc_s_fmt_vid_cap_mplane	= fimc_cap_s_fmt_mplane,
+	.vidioc_g_fmt_vid_cap_mplane	= fimc_cap_g_fmt_mplane,
+
+	.vidioc_reqbufs			= fimc_cap_reqbufs,
+	.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_create_bufs		= vb2_ioctl_create_bufs,
+
+	.vidioc_streamon		= fimc_cap_streamon,
+	.vidioc_streamoff		= fimc_cap_streamoff,
+
+	.vidioc_g_selection		= fimc_cap_g_selection,
+	.vidioc_s_selection		= fimc_cap_s_selection,
+
+	.vidioc_enum_input		= fimc_cap_enum_input,
+	.vidioc_s_input			= fimc_cap_s_input,
+	.vidioc_g_input			= fimc_cap_g_input,
+};
+
+/* Capture subdev media entity operations */
+static int fimc_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 fimc_dev *fimc = v4l2_get_subdevdata(sd);
+	struct fimc_vid_cap *vc = &fimc->vid_cap;
+	struct v4l2_subdev *sensor;
+
+	if (!is_media_entity_v4l2_subdev(remote->entity))
+		return -EINVAL;
+
+	if (WARN_ON(fimc == NULL))
+		return 0;
+
+	dbg("%s --> %s, flags: 0x%x. input: 0x%x",
+	    local->entity->name, remote->entity->name, flags,
+	    fimc->vid_cap.input);
+
+	if (!(flags & MEDIA_LNK_FL_ENABLED)) {
+		fimc->vid_cap.input = 0;
+		return 0;
+	}
+
+	if (vc->input != 0)
+		return -EBUSY;
+
+	vc->input = sd->grp_id;
+
+	if (vc->user_subdev_api || vc->inh_sensor_ctrls)
+		return 0;
+
+	/* Inherit V4L2 controls from the image sensor subdev. */
+	sensor = fimc_find_remote_sensor(&vc->subdev.entity);
+	if (sensor == NULL)
+		return 0;
+
+	return v4l2_ctrl_add_handler(&vc->ctx->ctrls.handler,
+				     sensor->ctrl_handler, NULL);
+}
+
+static const struct media_entity_operations fimc_sd_media_ops = {
+	.link_setup = fimc_link_setup,
+};
+
+/**
+ * fimc_sensor_notify - v4l2_device notification from a sensor subdev
+ * @sd: pointer to a subdev generating the notification
+ * @notification: the notification type, must be S5P_FIMC_TX_END_NOTIFY
+ * @arg: pointer to an u32 type integer that stores the frame payload value
+ *
+ * The End Of Frame notification sent by sensor subdev in its still capture
+ * mode. If there is only a single VSYNC generated by the sensor at the
+ * beginning of a frame transmission, FIMC does not issue the LastIrq
+ * (end of frame) interrupt. And this notification is used to complete the
+ * frame capture and returning a buffer to user-space. Subdev drivers should
+ * call this notification from their last 'End of frame capture' interrupt.
+ */
+void fimc_sensor_notify(struct v4l2_subdev *sd, unsigned int notification,
+			void *arg)
+{
+	struct fimc_source_info	*si;
+	struct fimc_vid_buffer *buf;
+	struct fimc_md *fmd;
+	struct fimc_dev *fimc;
+	unsigned long flags;
+
+	if (sd == NULL)
+		return;
+
+	si = v4l2_get_subdev_hostdata(sd);
+	fmd = entity_to_fimc_mdev(&sd->entity);
+
+	spin_lock_irqsave(&fmd->slock, flags);
+
+	fimc = si ? source_to_sensor_info(si)->host : NULL;
+
+	if (fimc && arg && notification == S5P_FIMC_TX_END_NOTIFY &&
+	    test_bit(ST_CAPT_PEND, &fimc->state)) {
+		unsigned long irq_flags;
+		spin_lock_irqsave(&fimc->slock, irq_flags);
+		if (!list_empty(&fimc->vid_cap.active_buf_q)) {
+			buf = list_entry(fimc->vid_cap.active_buf_q.next,
+					 struct fimc_vid_buffer, list);
+			vb2_set_plane_payload(&buf->vb.vb2_buf, 0,
+					      *((u32 *)arg));
+		}
+		fimc_capture_irq_handler(fimc, 1);
+		fimc_deactivate_capture(fimc);
+		spin_unlock_irqrestore(&fimc->slock, irq_flags);
+	}
+	spin_unlock_irqrestore(&fmd->slock, flags);
+}
+
+static int fimc_subdev_enum_mbus_code(struct v4l2_subdev *sd,
+				      struct v4l2_subdev_pad_config *cfg,
+				      struct v4l2_subdev_mbus_code_enum *code)
+{
+	struct fimc_fmt *fmt;
+
+	fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, code->index);
+	if (!fmt)
+		return -EINVAL;
+	code->code = fmt->mbus_code;
+	return 0;
+}
+
+static int fimc_subdev_get_fmt(struct v4l2_subdev *sd,
+			       struct v4l2_subdev_pad_config *cfg,
+			       struct v4l2_subdev_format *fmt)
+{
+	struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
+	struct fimc_ctx *ctx = fimc->vid_cap.ctx;
+	struct fimc_frame *ff = &ctx->s_frame;
+	struct v4l2_mbus_framefmt *mf;
+
+	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+		mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
+		fmt->format = *mf;
+		return 0;
+	}
+
+	mf = &fmt->format;
+	mutex_lock(&fimc->lock);
+
+	switch (fmt->pad) {
+	case FIMC_SD_PAD_SOURCE:
+		if (!WARN_ON(ff->fmt == NULL))
+			mf->code = ff->fmt->mbus_code;
+		/* Sink pads crop rectangle size */
+		mf->width = ff->width;
+		mf->height = ff->height;
+		break;
+	case FIMC_SD_PAD_SINK_FIFO:
+		*mf = fimc->vid_cap.wb_fmt;
+		break;
+	case FIMC_SD_PAD_SINK_CAM:
+	default:
+		*mf = fimc->vid_cap.ci_fmt;
+		break;
+	}
+
+	mutex_unlock(&fimc->lock);
+	mf->colorspace = V4L2_COLORSPACE_JPEG;
+
+	return 0;
+}
+
+static int fimc_subdev_set_fmt(struct v4l2_subdev *sd,
+			       struct v4l2_subdev_pad_config *cfg,
+			       struct v4l2_subdev_format *fmt)
+{
+	struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
+	struct v4l2_mbus_framefmt *mf = &fmt->format;
+	struct fimc_vid_cap *vc = &fimc->vid_cap;
+	struct fimc_ctx *ctx = vc->ctx;
+	struct fimc_frame *ff;
+	struct fimc_fmt *ffmt;
+
+	dbg("pad%d: code: 0x%x, %dx%d",
+	    fmt->pad, mf->code, mf->width, mf->height);
+
+	if (fmt->pad == FIMC_SD_PAD_SOURCE && vb2_is_busy(&vc->vbq))
+		return -EBUSY;
+
+	mutex_lock(&fimc->lock);
+	ffmt = fimc_capture_try_format(ctx, &mf->width, &mf->height,
+				       &mf->code, NULL, fmt->pad);
+	mutex_unlock(&fimc->lock);
+	mf->colorspace = V4L2_COLORSPACE_JPEG;
+
+	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+		mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
+		*mf = fmt->format;
+		return 0;
+	}
+	/* There must be a bug in the driver if this happens */
+	if (WARN_ON(ffmt == NULL))
+		return -EINVAL;
+
+	/* Update RGB Alpha control state and value range */
+	fimc_alpha_ctrl_update(ctx);
+
+	fimc_capture_mark_jpeg_xfer(ctx, ffmt->color);
+	if (fmt->pad == FIMC_SD_PAD_SOURCE) {
+		ff = &ctx->d_frame;
+		/* Sink pads crop rectangle size */
+		mf->width = ctx->s_frame.width;
+		mf->height = ctx->s_frame.height;
+	} else {
+		ff = &ctx->s_frame;
+	}
+
+	mutex_lock(&fimc->lock);
+	set_frame_bounds(ff, mf->width, mf->height);
+
+	if (fmt->pad == FIMC_SD_PAD_SINK_FIFO)
+		vc->wb_fmt = *mf;
+	else if (fmt->pad == FIMC_SD_PAD_SINK_CAM)
+		vc->ci_fmt = *mf;
+
+	ff->fmt = ffmt;
+
+	/* Reset the crop rectangle if required. */
+	if (!(fmt->pad == FIMC_SD_PAD_SOURCE && (ctx->state & FIMC_COMPOSE)))
+		set_frame_crop(ff, 0, 0, mf->width, mf->height);
+
+	if (fmt->pad != FIMC_SD_PAD_SOURCE)
+		ctx->state &= ~FIMC_COMPOSE;
+
+	mutex_unlock(&fimc->lock);
+	return 0;
+}
+
+static int fimc_subdev_get_selection(struct v4l2_subdev *sd,
+				     struct v4l2_subdev_pad_config *cfg,
+				     struct v4l2_subdev_selection *sel)
+{
+	struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
+	struct fimc_ctx *ctx = fimc->vid_cap.ctx;
+	struct fimc_frame *f = &ctx->s_frame;
+	struct v4l2_rect *r = &sel->r;
+	struct v4l2_rect *try_sel;
+
+	if (sel->pad == FIMC_SD_PAD_SOURCE)
+		return -EINVAL;
+
+	mutex_lock(&fimc->lock);
+
+	switch (sel->target) {
+	case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+		f = &ctx->d_frame;
+		/* fall through */
+	case V4L2_SEL_TGT_CROP_BOUNDS:
+		r->width = f->o_width;
+		r->height = f->o_height;
+		r->left = 0;
+		r->top = 0;
+		mutex_unlock(&fimc->lock);
+		return 0;
+
+	case V4L2_SEL_TGT_CROP:
+		try_sel = v4l2_subdev_get_try_crop(sd, cfg, sel->pad);
+		break;
+	case V4L2_SEL_TGT_COMPOSE:
+		try_sel = v4l2_subdev_get_try_compose(sd, cfg, sel->pad);
+		f = &ctx->d_frame;
+		break;
+	default:
+		mutex_unlock(&fimc->lock);
+		return -EINVAL;
+	}
+
+	if (sel->which == V4L2_SUBDEV_FORMAT_TRY) {
+		sel->r = *try_sel;
+	} else {
+		r->left = f->offs_h;
+		r->top = f->offs_v;
+		r->width = f->width;
+		r->height = f->height;
+	}
+
+	dbg("target %#x: l:%d, t:%d, %dx%d, f_w: %d, f_h: %d",
+	    sel->pad, r->left, r->top, r->width, r->height,
+	    f->f_width, f->f_height);
+
+	mutex_unlock(&fimc->lock);
+	return 0;
+}
+
+static int fimc_subdev_set_selection(struct v4l2_subdev *sd,
+				     struct v4l2_subdev_pad_config *cfg,
+				     struct v4l2_subdev_selection *sel)
+{
+	struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
+	struct fimc_ctx *ctx = fimc->vid_cap.ctx;
+	struct fimc_frame *f = &ctx->s_frame;
+	struct v4l2_rect *r = &sel->r;
+	struct v4l2_rect *try_sel;
+	unsigned long flags;
+
+	if (sel->pad == FIMC_SD_PAD_SOURCE)
+		return -EINVAL;
+
+	mutex_lock(&fimc->lock);
+	fimc_capture_try_selection(ctx, r, V4L2_SEL_TGT_CROP);
+
+	switch (sel->target) {
+	case V4L2_SEL_TGT_CROP:
+		try_sel = v4l2_subdev_get_try_crop(sd, cfg, sel->pad);
+		break;
+	case V4L2_SEL_TGT_COMPOSE:
+		try_sel = v4l2_subdev_get_try_compose(sd, cfg, sel->pad);
+		f = &ctx->d_frame;
+		break;
+	default:
+		mutex_unlock(&fimc->lock);
+		return -EINVAL;
+	}
+
+	if (sel->which == V4L2_SUBDEV_FORMAT_TRY) {
+		*try_sel = sel->r;
+	} else {
+		spin_lock_irqsave(&fimc->slock, flags);
+		set_frame_crop(f, r->left, r->top, r->width, r->height);
+		set_bit(ST_CAPT_APPLY_CFG, &fimc->state);
+		if (sel->target == V4L2_SEL_TGT_COMPOSE)
+			ctx->state |= FIMC_COMPOSE;
+		spin_unlock_irqrestore(&fimc->slock, flags);
+	}
+
+	dbg("target %#x: (%d,%d)/%dx%d", sel->target, r->left, r->top,
+	    r->width, r->height);
+
+	mutex_unlock(&fimc->lock);
+	return 0;
+}
+
+static const struct v4l2_subdev_pad_ops fimc_subdev_pad_ops = {
+	.enum_mbus_code = fimc_subdev_enum_mbus_code,
+	.get_selection = fimc_subdev_get_selection,
+	.set_selection = fimc_subdev_set_selection,
+	.get_fmt = fimc_subdev_get_fmt,
+	.set_fmt = fimc_subdev_set_fmt,
+};
+
+static const struct v4l2_subdev_ops fimc_subdev_ops = {
+	.pad = &fimc_subdev_pad_ops,
+};
+
+/* Set default format at the sensor and host interface */
+static int fimc_capture_set_default_format(struct fimc_dev *fimc)
+{
+	struct v4l2_format fmt = {
+		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
+		.fmt.pix_mp = {
+			.width		= FIMC_DEFAULT_WIDTH,
+			.height		= FIMC_DEFAULT_HEIGHT,
+			.pixelformat	= V4L2_PIX_FMT_YUYV,
+			.field		= V4L2_FIELD_NONE,
+			.colorspace	= V4L2_COLORSPACE_JPEG,
+		},
+	};
+
+	return __fimc_capture_set_format(fimc, &fmt);
+}
+
+/* fimc->lock must be already initialized */
+static int fimc_register_capture_device(struct fimc_dev *fimc,
+				 struct v4l2_device *v4l2_dev)
+{
+	struct video_device *vfd = &fimc->vid_cap.ve.vdev;
+	struct vb2_queue *q = &fimc->vid_cap.vbq;
+	struct fimc_ctx *ctx;
+	struct fimc_vid_cap *vid_cap;
+	struct fimc_fmt *fmt;
+	int ret = -ENOMEM;
+
+	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	ctx->fimc_dev	 = fimc;
+	ctx->in_path	 = FIMC_IO_CAMERA;
+	ctx->out_path	 = FIMC_IO_DMA;
+	ctx->state	 = FIMC_CTX_CAP;
+	ctx->s_frame.fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0);
+	ctx->d_frame.fmt = ctx->s_frame.fmt;
+
+	memset(vfd, 0, sizeof(*vfd));
+	snprintf(vfd->name, sizeof(vfd->name), "fimc.%d.capture", fimc->id);
+
+	vfd->fops	= &fimc_capture_fops;
+	vfd->ioctl_ops	= &fimc_capture_ioctl_ops;
+	vfd->v4l2_dev	= v4l2_dev;
+	vfd->minor	= -1;
+	vfd->release	= video_device_release_empty;
+	vfd->queue	= q;
+	vfd->lock	= &fimc->lock;
+
+	video_set_drvdata(vfd, fimc);
+	vid_cap = &fimc->vid_cap;
+	vid_cap->active_buf_cnt = 0;
+	vid_cap->reqbufs_count = 0;
+	vid_cap->ctx = ctx;
+
+	INIT_LIST_HEAD(&vid_cap->pending_buf_q);
+	INIT_LIST_HEAD(&vid_cap->active_buf_q);
+
+	memset(q, 0, sizeof(*q));
+	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+	q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
+	q->drv_priv = ctx;
+	q->ops = &fimc_capture_qops;
+	q->mem_ops = &vb2_dma_contig_memops;
+	q->buf_struct_size = sizeof(struct fimc_vid_buffer);
+	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+	q->lock = &fimc->lock;
+	q->dev = &fimc->pdev->dev;
+
+	ret = vb2_queue_init(q);
+	if (ret)
+		goto err_free_ctx;
+
+	/* Default format configuration */
+	fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0);
+	vid_cap->ci_fmt.width = FIMC_DEFAULT_WIDTH;
+	vid_cap->ci_fmt.height = FIMC_DEFAULT_HEIGHT;
+	vid_cap->ci_fmt.code = fmt->mbus_code;
+
+	ctx->s_frame.width = FIMC_DEFAULT_WIDTH;
+	ctx->s_frame.height = FIMC_DEFAULT_HEIGHT;
+	ctx->s_frame.fmt = fmt;
+
+	fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_WRITEBACK, 0);
+	vid_cap->wb_fmt = vid_cap->ci_fmt;
+	vid_cap->wb_fmt.code = fmt->mbus_code;
+
+	vid_cap->vd_pad.flags = MEDIA_PAD_FL_SINK;
+	vfd->entity.function = MEDIA_ENT_F_PROC_VIDEO_SCALER;
+	ret = media_entity_pads_init(&vfd->entity, 1, &vid_cap->vd_pad);
+	if (ret)
+		goto err_free_ctx;
+
+	ret = fimc_ctrls_create(ctx);
+	if (ret)
+		goto err_me_cleanup;
+
+	ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1);
+	if (ret)
+		goto err_ctrl_free;
+
+	v4l2_info(v4l2_dev, "Registered %s as /dev/%s\n",
+		  vfd->name, video_device_node_name(vfd));
+
+	vfd->ctrl_handler = &ctx->ctrls.handler;
+	return 0;
+
+err_ctrl_free:
+	fimc_ctrls_delete(ctx);
+err_me_cleanup:
+	media_entity_cleanup(&vfd->entity);
+err_free_ctx:
+	kfree(ctx);
+	return ret;
+}
+
+static int fimc_capture_subdev_registered(struct v4l2_subdev *sd)
+{
+	struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
+	int ret;
+
+	if (fimc == NULL)
+		return -ENXIO;
+
+	ret = fimc_register_m2m_device(fimc, sd->v4l2_dev);
+	if (ret)
+		return ret;
+
+	fimc->vid_cap.ve.pipe = v4l2_get_subdev_hostdata(sd);
+
+	ret = fimc_register_capture_device(fimc, sd->v4l2_dev);
+	if (ret) {
+		fimc_unregister_m2m_device(fimc);
+		fimc->vid_cap.ve.pipe = NULL;
+	}
+
+	return ret;
+}
+
+static void fimc_capture_subdev_unregistered(struct v4l2_subdev *sd)
+{
+	struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
+	struct video_device *vdev;
+
+	if (fimc == NULL)
+		return;
+
+	mutex_lock(&fimc->lock);
+
+	fimc_unregister_m2m_device(fimc);
+	vdev = &fimc->vid_cap.ve.vdev;
+
+	if (video_is_registered(vdev)) {
+		video_unregister_device(vdev);
+		media_entity_cleanup(&vdev->entity);
+		fimc_ctrls_delete(fimc->vid_cap.ctx);
+		fimc->vid_cap.ve.pipe = NULL;
+	}
+	kfree(fimc->vid_cap.ctx);
+	fimc->vid_cap.ctx = NULL;
+
+	mutex_unlock(&fimc->lock);
+}
+
+static const struct v4l2_subdev_internal_ops fimc_capture_sd_internal_ops = {
+	.registered = fimc_capture_subdev_registered,
+	.unregistered = fimc_capture_subdev_unregistered,
+};
+
+int fimc_initialize_capture_subdev(struct fimc_dev *fimc)
+{
+	struct v4l2_subdev *sd = &fimc->vid_cap.subdev;
+	int ret;
+
+	v4l2_subdev_init(sd, &fimc_subdev_ops);
+	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+	snprintf(sd->name, sizeof(sd->name), "FIMC.%d", fimc->id);
+
+	fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK_CAM].flags = MEDIA_PAD_FL_SINK;
+	fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK_FIFO].flags = MEDIA_PAD_FL_SINK;
+	fimc->vid_cap.sd_pads[FIMC_SD_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
+	ret = media_entity_pads_init(&sd->entity, FIMC_SD_PADS_NUM,
+				fimc->vid_cap.sd_pads);
+	if (ret)
+		return ret;
+
+	sd->entity.ops = &fimc_sd_media_ops;
+	sd->internal_ops = &fimc_capture_sd_internal_ops;
+	v4l2_set_subdevdata(sd, fimc);
+	return 0;
+}
+
+void fimc_unregister_capture_subdev(struct fimc_dev *fimc)
+{
+	struct v4l2_subdev *sd = &fimc->vid_cap.subdev;
+
+	v4l2_device_unregister_subdev(sd);
+	media_entity_cleanup(&sd->entity);
+	v4l2_set_subdevdata(sd, NULL);
+}