diff --git a/drivers/staging/media/atomisp/Makefile b/drivers/staging/media/atomisp/Makefile
index fb7b406f50bf..532e12ed72e6 100644
--- a/drivers/staging/media/atomisp/Makefile
+++ b/drivers/staging/media/atomisp/Makefile
@@ -17,7 +17,6 @@ atomisp-objs += \
 	pci/atomisp_compat_css20.o \
 	pci/atomisp_csi2.o \
 	pci/atomisp_drvfs.o \
-	pci/atomisp_file.o \
 	pci/atomisp_fops.o \
 	pci/atomisp_ioctl.o \
 	pci/atomisp_subdev.o \
diff --git a/drivers/staging/media/atomisp/pci/atomisp_file.c b/drivers/staging/media/atomisp/pci/atomisp_file.c
deleted file mode 100644
index 4570a9ab100b..000000000000
--- a/drivers/staging/media/atomisp/pci/atomisp_file.c
+++ /dev/null
@@ -1,229 +0,0 @@
-// 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 <media/v4l2-event.h>
-#include <media/v4l2-mediabus.h>
-
-#include <media/videobuf-vmalloc.h>
-#include <linux/delay.h>
-
-#include "ia_css.h"
-
-#include "atomisp_cmd.h"
-#include "atomisp_common.h"
-#include "atomisp_file.h"
-#include "atomisp_internal.h"
-#include "atomisp_ioctl.h"
-
-static void file_work(struct work_struct *work)
-{
-	struct atomisp_file_device *file_dev =
-	    container_of(work, struct atomisp_file_device, work);
-	struct atomisp_device *isp = file_dev->isp;
-	/* only support file injection on subdev0 */
-	struct atomisp_sub_device *asd = &isp->asd[0];
-	struct atomisp_video_pipe *out_pipe = &asd->video_in;
-	unsigned short *buf = videobuf_to_vmalloc(out_pipe->outq.bufs[0]);
-	struct v4l2_mbus_framefmt isp_sink_fmt;
-
-	if (asd->streaming != ATOMISP_DEVICE_STREAMING_ENABLED)
-		return;
-
-	dev_dbg(isp->dev, ">%s: ready to start streaming\n", __func__);
-	isp_sink_fmt = *atomisp_subdev_get_ffmt(&asd->subdev, NULL,
-						V4L2_SUBDEV_FORMAT_ACTIVE,
-						ATOMISP_SUBDEV_PAD_SINK);
-
-	while (!ia_css_isp_has_started())
-		usleep_range(1000, 1500);
-
-	ia_css_stream_send_input_frame(asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream,
-				       buf, isp_sink_fmt.width,
-				       isp_sink_fmt.height);
-	dev_dbg(isp->dev, "<%s: streaming done\n", __func__);
-}
-
-static int file_input_s_stream(struct v4l2_subdev *sd, int enable)
-{
-	struct atomisp_file_device *file_dev = v4l2_get_subdevdata(sd);
-	struct atomisp_device *isp = file_dev->isp;
-	/* only support file injection on subdev0 */
-	struct atomisp_sub_device *asd = &isp->asd[0];
-
-	dev_dbg(isp->dev, "%s: enable %d\n", __func__, enable);
-	if (enable) {
-		if (asd->streaming != ATOMISP_DEVICE_STREAMING_ENABLED)
-			return 0;
-
-		queue_work(file_dev->work_queue, &file_dev->work);
-		return 0;
-	}
-	cancel_work_sync(&file_dev->work);
-	return 0;
-}
-
-static int file_input_get_fmt(struct v4l2_subdev *sd,
-			      struct v4l2_subdev_state *sd_state,
-			      struct v4l2_subdev_format *format)
-{
-	struct v4l2_mbus_framefmt *fmt = &format->format;
-	struct atomisp_file_device *file_dev = v4l2_get_subdevdata(sd);
-	struct atomisp_device *isp = file_dev->isp;
-	/* only support file injection on subdev0 */
-	struct atomisp_sub_device *asd = &isp->asd[0];
-	struct v4l2_mbus_framefmt *isp_sink_fmt;
-
-	if (format->pad)
-		return -EINVAL;
-	isp_sink_fmt = atomisp_subdev_get_ffmt(&asd->subdev, NULL,
-					       V4L2_SUBDEV_FORMAT_ACTIVE,
-					       ATOMISP_SUBDEV_PAD_SINK);
-
-	fmt->width = isp_sink_fmt->width;
-	fmt->height = isp_sink_fmt->height;
-	fmt->code = isp_sink_fmt->code;
-
-	return 0;
-}
-
-static int file_input_set_fmt(struct v4l2_subdev *sd,
-			      struct v4l2_subdev_state *sd_state,
-			      struct v4l2_subdev_format *format)
-{
-	struct v4l2_mbus_framefmt *fmt = &format->format;
-
-	if (format->pad)
-		return -EINVAL;
-	file_input_get_fmt(sd, sd_state, format);
-	if (format->which == V4L2_SUBDEV_FORMAT_TRY)
-		sd_state->pads->try_fmt = *fmt;
-	return 0;
-}
-
-static int file_input_log_status(struct v4l2_subdev *sd)
-{
-	/*to fake*/
-	return 0;
-}
-
-static int file_input_s_power(struct v4l2_subdev *sd, int on)
-{
-	/* to fake */
-	return 0;
-}
-
-static int file_input_enum_mbus_code(struct v4l2_subdev *sd,
-				     struct v4l2_subdev_state *sd_state,
-				     struct v4l2_subdev_mbus_code_enum *code)
-{
-	/*to fake*/
-	return 0;
-}
-
-static int file_input_enum_frame_size(struct v4l2_subdev *sd,
-				      struct v4l2_subdev_state *sd_state,
-				      struct v4l2_subdev_frame_size_enum *fse)
-{
-	/*to fake*/
-	return 0;
-}
-
-static int file_input_enum_frame_ival(struct v4l2_subdev *sd,
-				      struct v4l2_subdev_state *sd_state,
-				      struct v4l2_subdev_frame_interval_enum
-				      *fie)
-{
-	/*to fake*/
-	return 0;
-}
-
-static const struct v4l2_subdev_video_ops file_input_video_ops = {
-	.s_stream = file_input_s_stream,
-};
-
-static const struct v4l2_subdev_core_ops file_input_core_ops = {
-	.log_status = file_input_log_status,
-	.s_power = file_input_s_power,
-};
-
-static const struct v4l2_subdev_pad_ops file_input_pad_ops = {
-	.enum_mbus_code = file_input_enum_mbus_code,
-	.enum_frame_size = file_input_enum_frame_size,
-	.enum_frame_interval = file_input_enum_frame_ival,
-	.get_fmt = file_input_get_fmt,
-	.set_fmt = file_input_set_fmt,
-};
-
-static const struct v4l2_subdev_ops file_input_ops = {
-	.core = &file_input_core_ops,
-	.video = &file_input_video_ops,
-	.pad = &file_input_pad_ops,
-};
-
-void
-atomisp_file_input_unregister_entities(struct atomisp_file_device *file_dev)
-{
-	media_entity_cleanup(&file_dev->sd.entity);
-	v4l2_device_unregister_subdev(&file_dev->sd);
-}
-
-int atomisp_file_input_register_entities(struct atomisp_file_device *file_dev,
-	struct v4l2_device *vdev)
-{
-	/* Register the subdev and video nodes. */
-	return  v4l2_device_register_subdev(vdev, &file_dev->sd);
-}
-
-void atomisp_file_input_cleanup(struct atomisp_device *isp)
-{
-	struct atomisp_file_device *file_dev = &isp->file_dev;
-
-	if (file_dev->work_queue) {
-		destroy_workqueue(file_dev->work_queue);
-		file_dev->work_queue = NULL;
-	}
-}
-
-int atomisp_file_input_init(struct atomisp_device *isp)
-{
-	struct atomisp_file_device *file_dev = &isp->file_dev;
-	struct v4l2_subdev *sd = &file_dev->sd;
-	struct media_pad *pads = file_dev->pads;
-	struct media_entity *me = &sd->entity;
-
-	file_dev->isp = isp;
-	file_dev->work_queue = alloc_workqueue(isp->v4l2_dev.name, 0, 1);
-	if (!file_dev->work_queue) {
-		dev_err(isp->dev, "Failed to initialize file inject workq\n");
-		return -ENOMEM;
-	}
-
-	INIT_WORK(&file_dev->work, file_work);
-
-	v4l2_subdev_init(sd, &file_input_ops);
-	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
-	strscpy(sd->name, "file_input_subdev", sizeof(sd->name));
-	v4l2_set_subdevdata(sd, file_dev);
-
-	pads[0].flags = MEDIA_PAD_FL_SINK;
-	me->function = MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN;
-
-	return media_entity_pads_init(me, 1, pads);
-}
diff --git a/drivers/staging/media/atomisp/pci/atomisp_file.h b/drivers/staging/media/atomisp/pci/atomisp_file.h
deleted file mode 100644
index f166a2aefff1..000000000000
--- a/drivers/staging/media/atomisp/pci/atomisp_file.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/* 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.
- *
- *
- */
-
-#ifndef __ATOMISP_FILE_H__
-#define __ATOMISP_FILE_H__
-
-#include <media/media-entity.h>
-#include <media/v4l2-subdev.h>
-
-struct atomisp_device;
-
-struct atomisp_file_device {
-	struct v4l2_subdev sd;
-	struct atomisp_device *isp;
-	struct media_pad pads[1];
-
-	struct workqueue_struct *work_queue;
-	struct work_struct work;
-};
-
-void atomisp_file_input_cleanup(struct atomisp_device *isp);
-int atomisp_file_input_init(struct atomisp_device *isp);
-void atomisp_file_input_unregister_entities(
-    struct atomisp_file_device *file_dev);
-int atomisp_file_input_register_entities(struct atomisp_file_device *file_dev,
-	struct v4l2_device *vdev);
-#endif /* __ATOMISP_FILE_H__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp_fops.c b/drivers/staging/media/atomisp/pci/atomisp_fops.c
index 77150e4ae144..9ff0bcc04307 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_fops.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_fops.c
@@ -742,8 +742,7 @@ static unsigned int atomisp_subdev_users(struct atomisp_sub_device *asd)
 	       asd->video_out_vf.users +
 	       asd->video_out_capture.users +
 	       asd->video_out_video_capture.users +
-	       asd->video_acc.users +
-	       asd->video_in.users;
+	       asd->video_acc.users;
 }
 
 unsigned int atomisp_dev_users(struct atomisp_device *isp)
diff --git a/drivers/staging/media/atomisp/pci/atomisp_internal.h b/drivers/staging/media/atomisp/pci/atomisp_internal.h
index f71ab1ee6e19..ce1746e7ab9f 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_internal.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_internal.h
@@ -34,7 +34,6 @@
 #include "sh_css_legacy.h"
 
 #include "atomisp_csi2.h"
-#include "atomisp_file.h"
 #include "atomisp_subdev.h"
 #include "atomisp_tpg.h"
 #include "atomisp_compat.h"
@@ -86,7 +85,7 @@
 #define ATOM_ISP_POWER_DOWN	0
 #define ATOM_ISP_POWER_UP	1
 
-#define ATOM_ISP_MAX_INPUTS	4
+#define ATOM_ISP_MAX_INPUTS	3
 
 #define ATOMISP_SC_TYPE_SIZE	2
 
@@ -241,7 +240,6 @@ struct atomisp_device {
 
 	struct atomisp_mipi_csi2_device csi2_port[ATOMISP_CAMERA_NR_PORTS];
 	struct atomisp_tpg_device tpg;
-	struct atomisp_file_device file_dev;
 
 	/* Purpose of mutex is to protect and serialize use of isp data
 	 * structures and css API calls. */
diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
index d0b5dacbb20a..571a2df75238 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
@@ -609,8 +609,7 @@ atomisp_subdev_streaming_count(struct atomisp_sub_device *asd)
 	return asd->video_out_preview.capq.streaming
 	       + asd->video_out_capture.capq.streaming
 	       + asd->video_out_video_capture.capq.streaming
-	       + asd->video_out_vf.capq.streaming
-	       + asd->video_in.capq.streaming;
+	       + asd->video_out_vf.capq.streaming;
 }
 
 unsigned int atomisp_streaming_count(struct atomisp_device *isp)
diff --git a/drivers/staging/media/atomisp/pci/atomisp_subdev.c b/drivers/staging/media/atomisp/pci/atomisp_subdev.c
index 6d533919d466..1509543924d2 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_subdev.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_subdev.c
@@ -1126,9 +1126,6 @@ static int isp_subdev_init_entities(struct atomisp_sub_device *asd)
 	if (ret < 0)
 		return ret;
 
-	atomisp_init_subdev_pipe(asd, &asd->video_in,
-				 V4L2_BUF_TYPE_VIDEO_OUTPUT);
-
 	atomisp_init_subdev_pipe(asd, &asd->video_out_preview,
 				 V4L2_BUF_TYPE_VIDEO_CAPTURE);
 
@@ -1143,11 +1140,6 @@ static int isp_subdev_init_entities(struct atomisp_sub_device *asd)
 
 	atomisp_init_acc_pipe(asd, &asd->video_acc);
 
-	ret = atomisp_video_init(&asd->video_in, "MEMORY",
-				 ATOMISP_RUN_MODE_SDV);
-	if (ret < 0)
-		return ret;
-
 	ret = atomisp_video_init(&asd->video_out_capture, "CAPTURE",
 				 ATOMISP_RUN_MODE_STILL_CAPTURE);
 	if (ret < 0)
@@ -1226,7 +1218,11 @@ int atomisp_create_pads_links(struct atomisp_device *isp)
 				return ret;
 		}
 	}
-	for (i = 0; i < isp->input_cnt - 2; i++) {
+	for (i = 0; i < isp->input_cnt; i++) {
+		/* Don't create links for the test-pattern-generator */
+		if (isp->inputs[i].type == TEST_PATTERN)
+			continue;
+
 		ret = media_create_pad_link(&isp->inputs[i].camera->entity, 0,
 					    &isp->csi2_port[isp->inputs[i].
 						    port].subdev.entity,
@@ -1262,17 +1258,6 @@ int atomisp_create_pads_links(struct atomisp_device *isp)
 					    entity, 0, 0);
 		if (ret < 0)
 			return ret;
-		/*
-		 * file input only supported on subdev0
-		 * so do not create pad link for subdevs other then subdev0
-		 */
-		if (asd->index)
-			return 0;
-		ret = media_create_pad_link(&asd->video_in.vdev.entity,
-					    0, &asd->subdev.entity,
-					    ATOMISP_SUBDEV_PAD_SINK, 0);
-		if (ret < 0)
-			return ret;
 	}
 	return 0;
 }
@@ -1302,7 +1287,6 @@ void atomisp_subdev_unregister_entities(struct atomisp_sub_device *asd)
 {
 	atomisp_subdev_cleanup_entities(asd);
 	v4l2_device_unregister_subdev(&asd->subdev);
-	atomisp_video_unregister(&asd->video_in);
 	atomisp_video_unregister(&asd->video_out_preview);
 	atomisp_video_unregister(&asd->video_out_vf);
 	atomisp_video_unregister(&asd->video_out_capture);
@@ -1360,20 +1344,6 @@ int atomisp_subdev_register_entities(struct atomisp_sub_device *asd,
 	if (ret < 0)
 		goto error;
 
-	/*
-	 * file input only supported on subdev0
-	 * so do not create video node for subdevs other then subdev0
-	 */
-	if (asd->index)
-		return 0;
-
-	asd->video_in.vdev.v4l2_dev = vdev;
-	asd->video_in.vdev.device_caps = V4L2_CAP_VIDEO_OUT | V4L2_CAP_STREAMING;
-	ret = video_register_device(&asd->video_in.vdev,
-				    VFL_TYPE_VIDEO, -1);
-	if (ret < 0)
-		goto error;
-
 	return 0;
 
 error:
diff --git a/drivers/staging/media/atomisp/pci/atomisp_subdev.h b/drivers/staging/media/atomisp/pci/atomisp_subdev.h
index 798a93793a9a..938d427bede8 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_subdev.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_subdev.h
@@ -297,7 +297,6 @@ struct atomisp_sub_device {
 
 	enum atomisp_subdev_input_entity input;
 	unsigned int output;
-	struct atomisp_video_pipe video_in;
 	struct atomisp_video_pipe video_out_capture; /* capture output */
 	struct atomisp_video_pipe video_out_vf;      /* viewfinder output */
 	struct atomisp_video_pipe video_out_preview; /* preview output */
diff --git a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
index 643ba981601b..5488a02200ed 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
@@ -34,7 +34,6 @@
 #include "atomisp_cmd.h"
 #include "atomisp_common.h"
 #include "atomisp_fops.h"
-#include "atomisp_file.h"
 #include "atomisp_ioctl.h"
 #include "atomisp_internal.h"
 #include "atomisp-regs.h"
@@ -1158,7 +1157,6 @@ static void atomisp_unregister_entities(struct atomisp_device *isp)
 	for (i = 0; i < isp->num_of_streams; i++)
 		atomisp_subdev_unregister_entities(&isp->asd[i]);
 	atomisp_tpg_unregister_entities(&isp->tpg);
-	atomisp_file_input_unregister_entities(&isp->file_dev);
 	for (i = 0; i < ATOMISP_CAMERA_NR_PORTS; i++)
 		atomisp_mipi_csi2_unregister_entities(&isp->csi2_port[i]);
 
@@ -1210,13 +1208,6 @@ static int atomisp_register_entities(struct atomisp_device *isp)
 		goto csi_and_subdev_probe_failed;
 	}
 
-	ret =
-	    atomisp_file_input_register_entities(&isp->file_dev, &isp->v4l2_dev);
-	if (ret < 0) {
-		dev_err(isp->dev, "atomisp_file_input_register_entities\n");
-		goto file_input_register_failed;
-	}
-
 	ret = atomisp_tpg_register_entities(&isp->tpg, &isp->v4l2_dev);
 	if (ret < 0) {
 		dev_err(isp->dev, "atomisp_tpg_register_entities\n");
@@ -1267,14 +1258,6 @@ static int atomisp_register_entities(struct atomisp_device *isp)
 		}
 	}
 
-	dev_dbg(isp->dev,
-		"FILE_INPUT enable, camera_cnt: %d\n", isp->input_cnt);
-	isp->inputs[isp->input_cnt].type = FILE_INPUT;
-	isp->inputs[isp->input_cnt].port = -1;
-	isp->inputs[isp->input_cnt].camera_caps =
-	    atomisp_get_default_camera_caps();
-	isp->inputs[isp->input_cnt++].camera = &isp->file_dev.sd;
-
 	if (isp->input_cnt < ATOM_ISP_MAX_INPUTS) {
 		dev_dbg(isp->dev,
 			"TPG detected, camera_cnt: %d\n", isp->input_cnt);
@@ -1304,8 +1287,6 @@ static int atomisp_register_entities(struct atomisp_device *isp)
 subdev_register_failed:
 	atomisp_tpg_unregister_entities(&isp->tpg);
 tpg_register_failed:
-	atomisp_file_input_unregister_entities(&isp->file_dev);
-file_input_register_failed:
 	for (i = 0; i < ATOMISP_CAMERA_NR_PORTS; i++)
 		atomisp_mipi_csi2_unregister_entities(&isp->csi2_port[i]);
 csi_and_subdev_probe_failed:
@@ -1326,13 +1307,6 @@ static int atomisp_initialize_modules(struct atomisp_device *isp)
 		goto error_mipi_csi2;
 	}
 
-	ret = atomisp_file_input_init(isp);
-	if (ret < 0) {
-		dev_err(isp->dev,
-			"file input device initialization failed\n");
-		goto error_file_input;
-	}
-
 	ret = atomisp_tpg_init(isp);
 	if (ret < 0) {
 		dev_err(isp->dev, "tpg initialization failed\n");
@@ -1350,8 +1324,6 @@ static int atomisp_initialize_modules(struct atomisp_device *isp)
 error_isp_subdev:
 error_tpg:
 	atomisp_tpg_cleanup(isp);
-error_file_input:
-	atomisp_file_input_cleanup(isp);
 error_mipi_csi2:
 	atomisp_mipi_csi2_cleanup(isp);
 	return ret;
@@ -1360,7 +1332,6 @@ static int atomisp_initialize_modules(struct atomisp_device *isp)
 static void atomisp_uninitialize_modules(struct atomisp_device *isp)
 {
 	atomisp_tpg_cleanup(isp);
-	atomisp_file_input_cleanup(isp);
 	atomisp_mipi_csi2_cleanup(isp);
 }
 
@@ -1852,7 +1823,6 @@ static void atomisp_pci_remove(struct pci_dev *pdev)
 	atomisp_unregister_entities(isp);
 
 	destroy_workqueue(isp->wdt_work_queue);
-	atomisp_file_input_cleanup(isp);
 
 	release_firmware(isp->firmware);
 }
