Adding upstream version 6.6.15.upstream/6.6.15

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

1 files changed, 632 insertions, 0 deletions

diff --git a/drivers/staging/media/atomisp/pci/atomisp_fops.c b/drivers/staging/media/atomisp/pci/atomisp_fops.c
new file mode 100644
index 0000000000..54466d2f32
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp_fops.c
@@ -0,0 +1,632 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Support for Medifield PNW Camera Imaging ISP subsystem.
+ *
+ * Copyright (c) 2010 Intel Corporation. All Rights Reserved.
+ *
+ * Copyright (c) 2010 Silicon Hive www.siliconhive.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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+
+#include <media/v4l2-ioctl.h>
+#include <media/videobuf2-vmalloc.h>
+
+#include "atomisp_cmd.h"
+#include "atomisp_common.h"
+#include "atomisp_fops.h"
+#include "atomisp_internal.h"
+#include "atomisp_ioctl.h"
+#include "atomisp_compat.h"
+#include "atomisp_subdev.h"
+#include "atomisp_v4l2.h"
+#include "atomisp-regs.h"
+#include "hmm/hmm.h"
+
+#include "ia_css_frame.h"
+#include "type_support.h"
+#include "device_access/device_access.h"
+
+/*
+ * Videobuf2 ops
+ */
+static int atomisp_queue_setup(struct vb2_queue *vq,
+			       unsigned int *nbuffers, unsigned int *nplanes,
+			       unsigned int sizes[], struct device *alloc_devs[])
+{
+	struct atomisp_video_pipe *pipe = container_of(vq, struct atomisp_video_pipe, vb_queue);
+	int ret;
+
+	mutex_lock(&pipe->asd->isp->mutex); /* for get_css_frame_info() / set_fmt() */
+
+	/*
+	 * When VIDIOC_S_FMT has not been called before VIDIOC_REQBUFS, then
+	 * this will fail. Call atomisp_set_fmt() ourselves and try again.
+	 */
+	ret = atomisp_get_css_frame_info(pipe->asd, &pipe->frame_info);
+	if (ret) {
+		struct v4l2_format f = {
+			.fmt.pix.pixelformat = V4L2_PIX_FMT_YUV420,
+			.fmt.pix.width = 10000,
+			.fmt.pix.height = 10000,
+		};
+
+		ret = atomisp_set_fmt(&pipe->vdev, &f);
+		if (ret)
+			goto out;
+
+		ret = atomisp_get_css_frame_info(pipe->asd, &pipe->frame_info);
+		if (ret)
+			goto out;
+	}
+
+	atomisp_alloc_css_stat_bufs(pipe->asd, ATOMISP_INPUT_STREAM_GENERAL);
+
+	*nplanes = 1;
+	sizes[0] = PAGE_ALIGN(pipe->pix.sizeimage);
+
+out:
+	mutex_unlock(&pipe->asd->isp->mutex);
+	return ret;
+}
+
+static int atomisp_buf_init(struct vb2_buffer *vb)
+{
+	struct atomisp_video_pipe *pipe = vb_to_pipe(vb);
+	struct ia_css_frame *frame = vb_to_frame(vb);
+	int ret;
+
+	ret = ia_css_frame_init_from_info(frame, &pipe->frame_info);
+	if (ret)
+		return ret;
+
+	if (frame->data_bytes > vb2_plane_size(vb, 0)) {
+		dev_err(pipe->asd->isp->dev, "Internal error frame.data_bytes(%u) > vb.length(%lu)\n",
+			frame->data_bytes, vb2_plane_size(vb, 0));
+		return -EIO;
+	}
+
+	frame->data = hmm_create_from_vmalloc_buf(vb2_plane_size(vb, 0),
+						  vb2_plane_vaddr(vb, 0));
+	if (frame->data == mmgr_NULL)
+		return -ENOMEM;
+
+	return 0;
+}
+
+static int atomisp_q_one_metadata_buffer(struct atomisp_sub_device *asd,
+	enum atomisp_input_stream_id stream_id,
+	enum ia_css_pipe_id css_pipe_id)
+{
+	struct atomisp_metadata_buf *metadata_buf;
+	enum atomisp_metadata_type md_type = ATOMISP_MAIN_METADATA;
+	struct list_head *metadata_list;
+
+	if (asd->metadata_bufs_in_css[stream_id][css_pipe_id] >=
+	    ATOMISP_CSS_Q_DEPTH)
+		return 0; /* we have reached CSS queue depth */
+
+	if (!list_empty(&asd->metadata[md_type])) {
+		metadata_list = &asd->metadata[md_type];
+	} else if (!list_empty(&asd->metadata_ready[md_type])) {
+		metadata_list = &asd->metadata_ready[md_type];
+	} else {
+		dev_warn(asd->isp->dev, "%s: No metadata buffers available for type %d!\n",
+			 __func__, md_type);
+		return -EINVAL;
+	}
+
+	metadata_buf = list_entry(metadata_list->next,
+				  struct atomisp_metadata_buf, list);
+	list_del_init(&metadata_buf->list);
+
+	if (atomisp_q_metadata_buffer_to_css(asd, metadata_buf,
+					     stream_id, css_pipe_id)) {
+		list_add(&metadata_buf->list, metadata_list);
+		return -EINVAL;
+	} else {
+		list_add_tail(&metadata_buf->list,
+			      &asd->metadata_in_css[md_type]);
+	}
+	asd->metadata_bufs_in_css[stream_id][css_pipe_id]++;
+
+	return 0;
+}
+
+static int atomisp_q_one_s3a_buffer(struct atomisp_sub_device *asd,
+				    enum atomisp_input_stream_id stream_id,
+				    enum ia_css_pipe_id css_pipe_id)
+{
+	struct atomisp_s3a_buf *s3a_buf;
+	struct list_head *s3a_list;
+	unsigned int exp_id;
+
+	if (asd->s3a_bufs_in_css[css_pipe_id] >= ATOMISP_CSS_Q_DEPTH)
+		return 0; /* we have reached CSS queue depth */
+
+	if (!list_empty(&asd->s3a_stats)) {
+		s3a_list = &asd->s3a_stats;
+	} else if (!list_empty(&asd->s3a_stats_ready)) {
+		s3a_list = &asd->s3a_stats_ready;
+	} else {
+		dev_warn(asd->isp->dev, "%s: No s3a buffers available!\n",
+			 __func__);
+		return -EINVAL;
+	}
+
+	s3a_buf = list_entry(s3a_list->next, struct atomisp_s3a_buf, list);
+	list_del_init(&s3a_buf->list);
+	exp_id = s3a_buf->s3a_data->exp_id;
+
+	hmm_flush_vmap(s3a_buf->s3a_data->data_ptr);
+	if (atomisp_q_s3a_buffer_to_css(asd, s3a_buf,
+					stream_id, css_pipe_id)) {
+		/* got from head, so return back to the head */
+		list_add(&s3a_buf->list, s3a_list);
+		return -EINVAL;
+	} else {
+		list_add_tail(&s3a_buf->list, &asd->s3a_stats_in_css);
+		if (s3a_list == &asd->s3a_stats_ready)
+			dev_dbg(asd->isp->dev, "drop one s3a stat with exp_id %d\n", exp_id);
+	}
+
+	asd->s3a_bufs_in_css[css_pipe_id]++;
+	return 0;
+}
+
+static int atomisp_q_one_dis_buffer(struct atomisp_sub_device *asd,
+				    enum atomisp_input_stream_id stream_id,
+				    enum ia_css_pipe_id css_pipe_id)
+{
+	struct atomisp_dis_buf *dis_buf;
+	unsigned long irqflags;
+
+	if (asd->dis_bufs_in_css >=  ATOMISP_CSS_Q_DEPTH)
+		return 0; /* we have reached CSS queue depth */
+
+	spin_lock_irqsave(&asd->dis_stats_lock, irqflags);
+	if (list_empty(&asd->dis_stats)) {
+		spin_unlock_irqrestore(&asd->dis_stats_lock, irqflags);
+		dev_warn(asd->isp->dev, "%s: No dis buffers available!\n",
+			 __func__);
+		return -EINVAL;
+	}
+
+	dis_buf = list_entry(asd->dis_stats.prev,
+			     struct atomisp_dis_buf, list);
+	list_del_init(&dis_buf->list);
+	spin_unlock_irqrestore(&asd->dis_stats_lock, irqflags);
+
+	hmm_flush_vmap(dis_buf->dis_data->data_ptr);
+	if (atomisp_q_dis_buffer_to_css(asd, dis_buf,
+					stream_id, css_pipe_id)) {
+		spin_lock_irqsave(&asd->dis_stats_lock, irqflags);
+		/* got from tail, so return back to the tail */
+		list_add_tail(&dis_buf->list, &asd->dis_stats);
+		spin_unlock_irqrestore(&asd->dis_stats_lock, irqflags);
+		return -EINVAL;
+	} else {
+		spin_lock_irqsave(&asd->dis_stats_lock, irqflags);
+		list_add_tail(&dis_buf->list, &asd->dis_stats_in_css);
+		spin_unlock_irqrestore(&asd->dis_stats_lock, irqflags);
+	}
+
+	asd->dis_bufs_in_css++;
+
+	return 0;
+}
+
+static int atomisp_q_video_buffers_to_css(struct atomisp_sub_device *asd,
+					  struct atomisp_video_pipe *pipe,
+					  enum atomisp_input_stream_id stream_id,
+					  enum ia_css_buffer_type css_buf_type,
+					  enum ia_css_pipe_id css_pipe_id)
+{
+	struct atomisp_css_params_with_list *param;
+	struct ia_css_dvs_grid_info *dvs_grid =
+	    atomisp_css_get_dvs_grid_info(&asd->params.curr_grid_info);
+	unsigned long irqflags;
+	int space, err = 0;
+
+	lockdep_assert_held(&asd->isp->mutex);
+
+	if (WARN_ON(css_pipe_id >= IA_CSS_PIPE_ID_NUM))
+		return -EINVAL;
+
+	if (pipe->stopping)
+		return -EINVAL;
+
+	space = ATOMISP_CSS_Q_DEPTH - atomisp_buffers_in_css(pipe);
+	while (space--) {
+		struct ia_css_frame *frame;
+
+		spin_lock_irqsave(&pipe->irq_lock, irqflags);
+		frame = list_first_entry_or_null(&pipe->activeq, struct ia_css_frame, queue);
+		if (frame)
+			list_move_tail(&frame->queue, &pipe->buffers_in_css);
+		spin_unlock_irqrestore(&pipe->irq_lock, irqflags);
+
+		if (!frame)
+			return -EINVAL;
+
+		/*
+		 * If there is a per_frame setting to apply on the buffer,
+		 * do it before buffer en-queueing.
+		 */
+		param = pipe->frame_params[frame->vb.vb2_buf.index];
+		if (param) {
+			atomisp_makeup_css_parameters(asd,
+						      &asd->params.css_param.update_flag,
+						      &param->params);
+			atomisp_apply_css_parameters(asd, &param->params);
+
+			if (param->params.update_flag.dz_config &&
+			    asd->run_mode->val != ATOMISP_RUN_MODE_VIDEO) {
+				err = atomisp_calculate_real_zoom_region(asd,
+					&param->params.dz_config, css_pipe_id);
+				if (!err)
+					asd->params.config.dz_config = &param->params.dz_config;
+			}
+			atomisp_css_set_isp_config_applied_frame(asd, frame);
+			atomisp_css_update_isp_params_on_pipe(asd,
+							      asd->stream_env[stream_id].pipes[css_pipe_id]);
+			asd->params.dvs_6axis = (struct ia_css_dvs_6axis_config *)
+						param->params.dvs_6axis;
+
+			/*
+			 * WORKAROUND:
+			 * Because the camera halv3 can't ensure to set zoom
+			 * region to per_frame setting and global setting at
+			 * same time and only set zoom region to pre_frame
+			 * setting now.so when the pre_frame setting include
+			 * zoom region,I will set it to global setting.
+			 */
+			if (param->params.update_flag.dz_config &&
+			    asd->run_mode->val != ATOMISP_RUN_MODE_VIDEO
+			    && !err) {
+				memcpy(&asd->params.css_param.dz_config,
+				       &param->params.dz_config,
+				       sizeof(struct ia_css_dz_config));
+				asd->params.css_param.update_flag.dz_config =
+				    (struct atomisp_dz_config *)
+				    &asd->params.css_param.dz_config;
+				asd->params.css_update_params_needed = true;
+			}
+			pipe->frame_params[frame->vb.vb2_buf.index] = NULL;
+		}
+		/* Enqueue buffer */
+		err = atomisp_q_video_buffer_to_css(asd, frame, stream_id,
+						    css_buf_type, css_pipe_id);
+		if (err) {
+			spin_lock_irqsave(&pipe->irq_lock, irqflags);
+			list_move_tail(&frame->queue, &pipe->activeq);
+			spin_unlock_irqrestore(&pipe->irq_lock, irqflags);
+			dev_err(asd->isp->dev, "%s, css q fails: %d\n",
+				__func__, err);
+			return -EINVAL;
+		}
+
+		/* enqueue 3A/DIS/metadata buffers */
+		if (asd->params.curr_grid_info.s3a_grid.enable &&
+		    css_pipe_id == asd->params.s3a_enabled_pipe &&
+		    css_buf_type == IA_CSS_BUFFER_TYPE_OUTPUT_FRAME)
+			atomisp_q_one_s3a_buffer(asd, stream_id,
+						 css_pipe_id);
+
+		if (asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream_info.
+		    metadata_info.size &&
+		    css_buf_type == IA_CSS_BUFFER_TYPE_OUTPUT_FRAME)
+			atomisp_q_one_metadata_buffer(asd, stream_id,
+						      css_pipe_id);
+
+		if (dvs_grid && dvs_grid->enable &&
+		    css_pipe_id == IA_CSS_PIPE_ID_VIDEO &&
+		    css_buf_type == IA_CSS_BUFFER_TYPE_OUTPUT_FRAME)
+			atomisp_q_one_dis_buffer(asd, stream_id,
+						 css_pipe_id);
+	}
+
+	return 0;
+}
+
+/* queue all available buffers to css */
+int atomisp_qbuffers_to_css(struct atomisp_sub_device *asd)
+{
+	enum ia_css_pipe_id pipe_id;
+
+	if (asd->copy_mode) {
+		pipe_id = IA_CSS_PIPE_ID_COPY;
+	} else if (asd->vfpp->val == ATOMISP_VFPP_DISABLE_SCALER) {
+		pipe_id = IA_CSS_PIPE_ID_VIDEO;
+	} else if (asd->vfpp->val == ATOMISP_VFPP_DISABLE_LOWLAT) {
+		pipe_id = IA_CSS_PIPE_ID_CAPTURE;
+	} else if (asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO) {
+		pipe_id = IA_CSS_PIPE_ID_VIDEO;
+	} else if (asd->run_mode->val == ATOMISP_RUN_MODE_PREVIEW) {
+		pipe_id = IA_CSS_PIPE_ID_PREVIEW;
+	} else {
+		/* ATOMISP_RUN_MODE_STILL_CAPTURE */
+		pipe_id = IA_CSS_PIPE_ID_CAPTURE;
+	}
+
+	atomisp_q_video_buffers_to_css(asd, &asd->video_out,
+				       ATOMISP_INPUT_STREAM_GENERAL,
+				       IA_CSS_BUFFER_TYPE_OUTPUT_FRAME, pipe_id);
+	return 0;
+}
+
+static void atomisp_buf_queue(struct vb2_buffer *vb)
+{
+	struct atomisp_video_pipe *pipe = vb_to_pipe(vb);
+	struct ia_css_frame *frame = vb_to_frame(vb);
+	struct atomisp_sub_device *asd = pipe->asd;
+	unsigned long irqflags;
+	int ret;
+
+	mutex_lock(&asd->isp->mutex);
+
+	ret = atomisp_pipe_check(pipe, false);
+	if (ret || pipe->stopping) {
+		spin_lock_irqsave(&pipe->irq_lock, irqflags);
+		atomisp_buffer_done(frame, VB2_BUF_STATE_ERROR);
+		spin_unlock_irqrestore(&pipe->irq_lock, irqflags);
+		goto out_unlock;
+	}
+
+	/* FIXME this ugliness comes from the original atomisp buffer handling */
+	if (!(vb->skip_cache_sync_on_finish && vb->skip_cache_sync_on_prepare))
+		wbinvd();
+
+	pipe->frame_params[vb->index] = NULL;
+
+	spin_lock_irqsave(&pipe->irq_lock, irqflags);
+	/*
+	 * when a frame buffer meets following conditions, it should be put into
+	 * the waiting list:
+	 * 1.  It is not a main output frame, and it has a per-frame parameter
+	 *     to go with it.
+	 * 2.  It is not a main output frame, and the waiting buffer list is not
+	 *     empty, to keep the FIFO sequence of frame buffer processing, it
+	 *     is put to waiting list until previous per-frame parameter buffers
+	 *     get enqueued.
+	 */
+	if (pipe->frame_request_config_id[vb->index] ||
+	    !list_empty(&pipe->buffers_waiting_for_param))
+		list_add_tail(&frame->queue, &pipe->buffers_waiting_for_param);
+	else
+		list_add_tail(&frame->queue, &pipe->activeq);
+
+	spin_unlock_irqrestore(&pipe->irq_lock, irqflags);
+
+	/* TODO: do this better, not best way to queue to css */
+	if (asd->streaming) {
+		if (!list_empty(&pipe->buffers_waiting_for_param))
+			atomisp_handle_parameter_and_buffer(pipe);
+		else
+			atomisp_qbuffers_to_css(asd);
+	}
+
+out_unlock:
+	mutex_unlock(&asd->isp->mutex);
+}
+
+static void atomisp_buf_cleanup(struct vb2_buffer *vb)
+{
+	struct atomisp_video_pipe *pipe = vb_to_pipe(vb);
+	struct ia_css_frame *frame = vb_to_frame(vb);
+	int index = frame->vb.vb2_buf.index;
+
+	pipe->frame_request_config_id[index] = 0;
+	pipe->frame_params[index] = NULL;
+
+	hmm_free(frame->data);
+}
+
+const struct vb2_ops atomisp_vb2_ops = {
+	.queue_setup		= atomisp_queue_setup,
+	.buf_init		= atomisp_buf_init,
+	.buf_cleanup		= atomisp_buf_cleanup,
+	.buf_queue		= atomisp_buf_queue,
+	.start_streaming	= atomisp_start_streaming,
+	.stop_streaming		= atomisp_stop_streaming,
+};
+
+static void atomisp_dev_init_struct(struct atomisp_device *isp)
+{
+	unsigned int i;
+
+	isp->isp_fatal_error = false;
+
+	for (i = 0; i < isp->input_cnt; i++)
+		isp->inputs[i].asd = NULL;
+	/*
+	 * For Merrifield, frequency is scalable.
+	 * After boot-up, the default frequency is 200MHz.
+	 */
+	isp->running_freq = ISP_FREQ_200MHZ;
+}
+
+static void atomisp_subdev_init_struct(struct atomisp_sub_device *asd)
+{
+	v4l2_ctrl_s_ctrl(asd->run_mode, ATOMISP_RUN_MODE_STILL_CAPTURE);
+	memset(&asd->params.css_param, 0, sizeof(asd->params.css_param));
+	asd->params.color_effect = V4L2_COLORFX_NONE;
+	asd->params.bad_pixel_en = true;
+	asd->params.gdc_cac_en = false;
+	asd->params.video_dis_en = false;
+	asd->params.sc_en = false;
+	asd->params.fpn_en = false;
+	asd->params.xnr_en = false;
+	asd->params.false_color = 0;
+	asd->params.yuv_ds_en = 0;
+	/* s3a grid not enabled for any pipe */
+	asd->params.s3a_enabled_pipe = IA_CSS_PIPE_ID_NUM;
+
+	asd->copy_mode = false;
+
+	asd->stream_prepared = false;
+	asd->high_speed_mode = false;
+	asd->sensor_array_res.height = 0;
+	asd->sensor_array_res.width = 0;
+	atomisp_css_init_struct(asd);
+}
+
+/*
+ * file operation functions
+ */
+static int atomisp_open(struct file *file)
+{
+	struct video_device *vdev = video_devdata(file);
+	struct atomisp_device *isp = video_get_drvdata(vdev);
+	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
+	struct atomisp_sub_device *asd = pipe->asd;
+	int ret;
+
+	dev_dbg(isp->dev, "open device %s\n", vdev->name);
+
+	ret = v4l2_fh_open(file);
+	if (ret)
+		return ret;
+
+	mutex_lock(&isp->mutex);
+
+	if (!isp->input_cnt) {
+		dev_err(isp->dev, "no camera attached\n");
+		ret = -EINVAL;
+		goto error;
+	}
+
+	/*
+	 * atomisp does not allow multiple open
+	 */
+	if (pipe->users) {
+		dev_dbg(isp->dev, "video node already opened\n");
+		mutex_unlock(&isp->mutex);
+		return -EBUSY;
+	}
+
+	/* runtime power management, turn on ISP */
+	ret = pm_runtime_resume_and_get(vdev->v4l2_dev->dev);
+	if (ret < 0) {
+		dev_err(isp->dev, "Failed to power on device\n");
+		goto error;
+	}
+
+	atomisp_dev_init_struct(isp);
+
+	ret = v4l2_subdev_call(isp->flash, core, s_power, 1);
+	if (ret < 0 && ret != -ENODEV && ret != -ENOIOCTLCMD) {
+		dev_err(isp->dev, "Failed to power-on flash\n");
+		goto css_error;
+	}
+
+	atomisp_subdev_init_struct(asd);
+	/* Ensure that a mode is set */
+	v4l2_ctrl_s_ctrl(asd->run_mode, ATOMISP_RUN_MODE_PREVIEW);
+
+	pipe->users++;
+	mutex_unlock(&isp->mutex);
+	return 0;
+
+css_error:
+	pm_runtime_put(vdev->v4l2_dev->dev);
+error:
+	mutex_unlock(&isp->mutex);
+	v4l2_fh_release(file);
+	return ret;
+}
+
+static int atomisp_release(struct file *file)
+{
+	struct video_device *vdev = video_devdata(file);
+	struct atomisp_device *isp = video_get_drvdata(vdev);
+	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
+	struct atomisp_sub_device *asd = pipe->asd;
+	struct v4l2_subdev_fh fh;
+	struct v4l2_rect clear_compose = {0};
+	int ret;
+
+	v4l2_fh_init(&fh.vfh, vdev);
+
+	dev_dbg(isp->dev, "release device %s\n", vdev->name);
+
+	/* Note file must not be used after this! */
+	vb2_fop_release(file);
+
+	mutex_lock(&isp->mutex);
+
+	pipe->users--;
+
+	/*
+	 * A little trick here:
+	 * file injection input resolution is recorded in the sink pad,
+	 * therefore can not be cleared when releaseing one device node.
+	 * The sink pad setting can only be cleared when all device nodes
+	 * get released.
+	 */
+	{
+		struct v4l2_mbus_framefmt isp_sink_fmt = { 0 };
+
+		atomisp_subdev_set_ffmt(&asd->subdev, fh.state,
+					V4L2_SUBDEV_FORMAT_ACTIVE,
+					ATOMISP_SUBDEV_PAD_SINK, &isp_sink_fmt);
+	}
+
+	atomisp_css_free_stat_buffers(asd);
+	atomisp_free_internal_buffers(asd);
+
+	if (isp->inputs[asd->input_curr].asd == asd) {
+		ret = v4l2_subdev_call(isp->inputs[asd->input_curr].camera,
+				       core, s_power, 0);
+		if (ret && ret != -ENOIOCTLCMD)
+			dev_warn(isp->dev, "Failed to power-off sensor\n");
+
+		/* clear the asd field to show this camera is not used */
+		isp->inputs[asd->input_curr].asd = NULL;
+	}
+
+	atomisp_destroy_pipes_stream(asd);
+
+	ret = v4l2_subdev_call(isp->flash, core, s_power, 0);
+	if (ret < 0 && ret != -ENODEV && ret != -ENOIOCTLCMD)
+		dev_warn(isp->dev, "Failed to power-off flash\n");
+
+	if (pm_runtime_put_sync(vdev->v4l2_dev->dev) < 0)
+		dev_err(isp->dev, "Failed to power off device\n");
+
+	atomisp_subdev_set_selection(&asd->subdev, fh.state,
+				     V4L2_SUBDEV_FORMAT_ACTIVE,
+				     ATOMISP_SUBDEV_PAD_SOURCE,
+				     V4L2_SEL_TGT_COMPOSE, 0,
+				     &clear_compose);
+	mutex_unlock(&isp->mutex);
+	return 0;
+}
+
+const struct v4l2_file_operations atomisp_fops = {
+	.owner = THIS_MODULE,
+	.open = atomisp_open,
+	.release = atomisp_release,
+	.mmap = vb2_fop_mmap,
+	.poll = vb2_fop_poll,
+	.unlocked_ioctl = video_ioctl2,
+#ifdef CONFIG_COMPAT
+	/*
+	 * this was removed because of bugs, the interface
+	 * needs to be made safe for compat tasks instead.
+	.compat_ioctl32 = atomisp_compat_ioctl32,
+	 */
+#endif
+};