diff --git a/drivers/staging/media/atomisp/Makefile b/drivers/staging/media/atomisp/Makefile
index 532e12ed72e6..38b370124109 100644
--- a/drivers/staging/media/atomisp/Makefile
+++ b/drivers/staging/media/atomisp/Makefile
@@ -16,6 +16,7 @@ atomisp-objs += \
 	pci/atomisp_cmd.o \
 	pci/atomisp_compat_css20.o \
 	pci/atomisp_csi2.o \
+	pci/atomisp_csi2_bridge.o \
 	pci/atomisp_drvfs.o \
 	pci/atomisp_fops.o \
 	pci/atomisp_ioctl.o \
diff --git a/drivers/staging/media/atomisp/pci/atomisp_csi2.c b/drivers/staging/media/atomisp/pci/atomisp_csi2.c
index 0045c4d3a7f6..abf55a86f795 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_csi2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_csi2.c
@@ -371,6 +371,10 @@ int atomisp_mipi_csi2_init(struct atomisp_device *isp)
 	unsigned int i;
 	int ret;
 
+	ret = atomisp_csi2_bridge_init(isp);
+	if (ret < 0)
+		return ret;
+
 	for (i = 0; i < ATOMISP_CAMERA_NR_PORTS; i++) {
 		csi2_port = &isp->csi2_port[i];
 		csi2_port->isp = isp;
diff --git a/drivers/staging/media/atomisp/pci/atomisp_csi2.h b/drivers/staging/media/atomisp/pci/atomisp_csi2.h
index b245b2f5ce99..c714202db52a 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_csi2.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_csi2.h
@@ -21,14 +21,76 @@
 #include <media/v4l2-subdev.h>
 #include <media/v4l2-ctrls.h>
 
+#include "../../include/linux/atomisp.h"
+
 #define CSI2_PAD_SINK		0
 #define CSI2_PAD_SOURCE		1
 #define CSI2_PADS_NUM		2
 
+#define CSI2_MAX_LANES		4
+
 struct atomisp_device;
 struct v4l2_device;
 struct atomisp_sub_device;
 
+enum atomisp_csi2_sensor_swnodes {
+	SWNODE_SENSOR,
+	SWNODE_SENSOR_PORT,
+	SWNODE_SENSOR_ENDPOINT,
+	SWNODE_CSI2_PORT,
+	SWNODE_CSI2_ENDPOINT,
+	SWNODE_COUNT
+};
+
+struct atomisp_csi2_property_names {
+	char rotation[9];
+	char bus_type[9];
+	char data_lanes[11];
+	char remote_endpoint[16];
+};
+
+struct atomisp_csi2_node_names {
+	char port[7];
+	char endpoint[11];
+	char remote_port[7];
+};
+
+struct atomisp_csi2_sensor_config {
+	const char *hid;
+	int lanes;
+};
+
+struct atomisp_csi2_sensor {
+	/* Append port in "-%u" format as suffix of HID */
+	char name[ACPI_ID_LEN + 4];
+	struct acpi_device *adev;
+	int port;
+	int lanes;
+
+	/* SWNODE_COUNT + 1 for terminating NULL */
+	const struct software_node *group[SWNODE_COUNT + 1];
+	struct software_node swnodes[SWNODE_COUNT];
+	struct atomisp_csi2_node_names node_names;
+	struct atomisp_csi2_property_names prop_names;
+	/* "rotation" + terminating entry */
+	struct property_entry dev_properties[2];
+	/* "bus-type", "data-lanes", "remote-endpoint" + terminating entry */
+	struct property_entry ep_properties[4];
+	/* "data-lanes", "remote-endpoint" + terminating entry */
+	struct property_entry csi2_properties[3];
+	struct software_node_ref_args local_ref[1];
+	struct software_node_ref_args remote_ref[1];
+	struct software_node_ref_args vcm_ref[1];
+};
+
+struct atomisp_csi2_bridge {
+	char csi2_node_name[14];
+	struct software_node csi2_node;
+	u32 data_lanes[CSI2_MAX_LANES];
+	unsigned int n_sensors;
+	struct atomisp_csi2_sensor sensors[ATOMISP_CAMERA_NR_PORTS];
+};
+
 struct atomisp_mipi_csi2_device {
 	struct v4l2_subdev subdev;
 	struct media_pad pads[CSI2_PADS_NUM];
@@ -48,6 +110,8 @@ void atomisp_mipi_csi2_unregister_entities(
     struct atomisp_mipi_csi2_device *csi2);
 int atomisp_mipi_csi2_register_entities(struct atomisp_mipi_csi2_device *csi2,
 					struct v4l2_device *vdev);
+int atomisp_csi2_bridge_init(struct atomisp_device *isp);
+int atomisp_csi2_bridge_parse_firmware(struct atomisp_device *isp);
 
 void atomisp_csi2_configure(struct atomisp_sub_device *asd);
 
diff --git a/drivers/staging/media/atomisp/pci/atomisp_csi2_bridge.c b/drivers/staging/media/atomisp/pci/atomisp_csi2_bridge.c
new file mode 100644
index 000000000000..8539d7f354ae
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp_csi2_bridge.c
@@ -0,0 +1,592 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Code to build software firmware node graph for atomisp2 connected sensors
+ * from ACPI tables.
+ *
+ * Copyright (C) 2023 Hans de Goede <hdegoede@redhat.com>
+ *
+ * Based on drivers/media/pci/intel/ipu3/cio2-bridge.c written by:
+ * Dan Scally <djrscally@gmail.com>
+ */
+
+#include <linux/acpi.h>
+#include <linux/device.h>
+#include <linux/dmi.h>
+#include <linux/property.h>
+#include <media/v4l2-fwnode.h>
+
+#include "atomisp_cmd.h"
+#include "atomisp_csi2.h"
+#include "atomisp_internal.h"
+
+#define NODE_SENSOR(_HID, _PROPS)		\
+	((const struct software_node) {		\
+		.name = _HID,			\
+		.properties = _PROPS,		\
+	})
+
+#define NODE_PORT(_PORT, _SENSOR_NODE)		\
+	((const struct software_node) {		\
+		.name = _PORT,			\
+		.parent = _SENSOR_NODE,		\
+	})
+
+#define NODE_ENDPOINT(_EP, _PORT, _PROPS)	\
+	((const struct software_node) {		\
+		.name = _EP,			\
+		.parent = _PORT,		\
+		.properties = _PROPS,		\
+	})
+
+/*
+ * Extend this array with ACPI Hardware IDs of sensors known to be working
+ * plus the number of links expected by their drivers.
+ *
+ * Do not add an entry for a sensor that is not actually supported,
+ * or which have not yet been converted to work without atomisp_gmin
+ * power-management and with v4l2-async probing.
+ */
+static const struct atomisp_csi2_sensor_config supported_sensors[] = {
+	/* GalaxyCore GC0310 */
+	{ "INT0310", 1 },
+	/* Omnivision OV2680 */
+	{ "OVTI2680", 1 },
+};
+
+/*
+ * gmin_cfg parsing code. This is a cleaned up version of the gmin_cfg parsing
+ * code from atomisp_gmin_platform.c.
+ * Once all sensors are moved to v4l2-async probing atomisp_gmin_platform.c can
+ * be removed and the duplication of this code goes away.
+ */
+struct gmin_cfg_var {
+	const char *acpi_dev_name;
+	const char *key;
+	const char *val;
+};
+
+static struct gmin_cfg_var lenovo_ideapad_miix_310_vars[] = {
+	/* _DSM contains the wrong CsiPort! */
+	{ "OVTI2680:01", "CsiPort", "0" },
+	{}
+};
+
+static const struct dmi_system_id gmin_cfg_dmi_overrides[] = {
+	{
+		/* Lenovo Ideapad Miix 310 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "MIIX 310-10"),
+		},
+		.driver_data = lenovo_ideapad_miix_310_vars,
+	},
+	{}
+};
+
+static const guid_t atomisp_dsm_guid = GUID_INIT(0xdc2f6c4f, 0x045b, 0x4f1d,
+						 0x97, 0xb9, 0x88, 0x2a,
+						 0x68, 0x60, 0xa4, 0xbe);
+
+static char *gmin_cfg_get_dsm(struct acpi_device *adev, const char *key)
+{
+	union acpi_object *obj;
+	char *val = NULL;
+	int i;
+
+	obj = acpi_evaluate_dsm_typed(adev->handle, &atomisp_dsm_guid, 0, 0,
+				      NULL, ACPI_TYPE_PACKAGE);
+	if (!obj)
+		return NULL;
+
+	for (i = 0; i < obj->package.count - 1; i += 2) {
+		/* The package should only contain strings */
+		if (obj->package.elements[i].type != ACPI_TYPE_STRING ||
+		    obj->package.elements[i + 1].type != ACPI_TYPE_STRING)
+			break;
+
+		if (!strcmp(obj->package.elements[i].string.pointer, key)) {
+			val = kstrdup(obj->package.elements[i + 1].string.pointer, GFP_KERNEL);
+			dev_info(&adev->dev, "Using DSM entry %s=%s\n", key, val);
+			break;
+		}
+	}
+
+	ACPI_FREE(obj);
+	return val;
+}
+
+static char *gmin_cfg_get_dmi_override(struct acpi_device *adev, const char *key)
+{
+	const struct dmi_system_id *id;
+	struct gmin_cfg_var *gv;
+
+	id = dmi_first_match(gmin_cfg_dmi_overrides);
+	if (!id)
+		return NULL;
+
+	for (gv = id->driver_data; gv->acpi_dev_name; gv++) {
+		if (strcmp(gv->acpi_dev_name, acpi_dev_name(adev)))
+			continue;
+
+		if (strcmp(key, gv->key))
+			continue;
+
+		dev_info(&adev->dev, "Using DMI entry %s=%s\n", key, gv->val);
+		return kstrdup(gv->val, GFP_KERNEL);
+	}
+
+	return NULL;
+}
+
+static char *gmin_cfg_get(struct acpi_device *adev, const char *key)
+{
+	char *val;
+
+	val = gmin_cfg_get_dmi_override(adev, key);
+	if (val)
+		return val;
+
+	return gmin_cfg_get_dsm(adev, key);
+}
+
+static int gmin_cfg_get_int(struct acpi_device *adev, const char *key, int default_val)
+{
+	char *str_val;
+	long int_val;
+	int ret;
+
+	str_val = gmin_cfg_get(adev, key);
+	if (!str_val)
+		goto use_default;
+
+	ret = kstrtoul(str_val, 0, &int_val);
+	kfree(str_val);
+	if (ret)
+		goto use_default;
+
+	return int_val;
+
+use_default:
+	dev_info(&adev->dev, "Using default %s=%d\n", key, default_val);
+	return default_val;
+}
+
+static int atomisp_csi2_get_pmc_clk_nr_from_acpi_pr0(struct acpi_device *adev)
+{
+	char name[5];
+	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+	struct acpi_buffer b_name = { sizeof(name), name };
+	union acpi_object *package, *element;
+	int clock_num = -ENOENT;
+	acpi_handle rhandle;
+	acpi_status status;
+	int i;
+
+	status = acpi_evaluate_object(adev->handle, "_PR0", NULL, &buffer);
+	if (!ACPI_SUCCESS(status))
+		return -ENOENT;
+
+	package = buffer.pointer;
+
+	if (!buffer.length || !package || package->type != ACPI_TYPE_PACKAGE)
+		goto fail;
+
+	for (i = 0; i < package->package.count; i++) {
+		element = &package->package.elements[i];
+
+		if (element->type != ACPI_TYPE_LOCAL_REFERENCE)
+			continue;
+
+		rhandle = element->reference.handle;
+		if (!rhandle)
+			continue;
+
+		acpi_get_name(rhandle, ACPI_SINGLE_NAME, &b_name);
+
+		if (strlen(name) == 4 && !strncmp(name, "CLK", 3) &&
+		    name[3] >= '0' && name[3] <= '4') {
+			clock_num = name[3] - '0';
+			break;
+		}
+	}
+fail:
+	ACPI_FREE(buffer.pointer);
+
+	return clock_num;
+}
+
+static int atomisp_csi2_get_port(struct acpi_device *adev)
+{
+	int clock_num, port;
+
+	/*
+	 * Get pmc-clock number from ACPI _PR0 method and compare this to
+	 * the CsiPort 1 pmc-clock used in the CHT/BYT reference designs.
+	 */
+	clock_num = atomisp_csi2_get_pmc_clk_nr_from_acpi_pr0(adev);
+	if (IS_ISP2401)
+		port = clock_num == 4 ? 1 : 0;
+	else
+		port = clock_num == 0 ? 1 : 0;
+
+	/* Intel DSM or DMI quirk overrides PR0 derived default */
+	port = gmin_cfg_get_int(adev, "CsiPort", port);
+
+	return port;
+}
+
+static const struct atomisp_csi2_property_names prop_names = {
+	.rotation = "rotation",
+	.bus_type = "bus-type",
+	.data_lanes = "data-lanes",
+	.remote_endpoint = "remote-endpoint",
+};
+
+static void atomisp_csi2_create_fwnode_properties(struct atomisp_csi2_sensor *sensor,
+						  struct atomisp_csi2_bridge *bridge,
+						  const struct atomisp_csi2_sensor_config *cfg)
+{
+	sensor->prop_names = prop_names;
+
+	sensor->local_ref[0] = SOFTWARE_NODE_REFERENCE(&sensor->swnodes[SWNODE_CSI2_ENDPOINT]);
+	sensor->remote_ref[0] = SOFTWARE_NODE_REFERENCE(&sensor->swnodes[SWNODE_SENSOR_ENDPOINT]);
+
+	sensor->dev_properties[0] = PROPERTY_ENTRY_U32(sensor->prop_names.rotation, 0);
+
+	sensor->ep_properties[0] = PROPERTY_ENTRY_U32(sensor->prop_names.bus_type,
+						      V4L2_FWNODE_BUS_TYPE_CSI2_DPHY);
+	sensor->ep_properties[1] = PROPERTY_ENTRY_U32_ARRAY_LEN(sensor->prop_names.data_lanes,
+								bridge->data_lanes,
+								sensor->lanes);
+	sensor->ep_properties[2] = PROPERTY_ENTRY_REF_ARRAY(sensor->prop_names.remote_endpoint,
+							    sensor->local_ref);
+
+	sensor->csi2_properties[0] = PROPERTY_ENTRY_U32_ARRAY_LEN(sensor->prop_names.data_lanes,
+								  bridge->data_lanes,
+								  sensor->lanes);
+	sensor->csi2_properties[1] = PROPERTY_ENTRY_REF_ARRAY(sensor->prop_names.remote_endpoint,
+							      sensor->remote_ref);
+}
+
+static void atomisp_csi2_init_swnode_names(struct atomisp_csi2_sensor *sensor)
+{
+	snprintf(sensor->node_names.remote_port,
+		 sizeof(sensor->node_names.remote_port),
+		 SWNODE_GRAPH_PORT_NAME_FMT, sensor->port);
+	snprintf(sensor->node_names.port,
+		 sizeof(sensor->node_names.port),
+		 SWNODE_GRAPH_PORT_NAME_FMT, 0); /* Always port 0 */
+	snprintf(sensor->node_names.endpoint,
+		 sizeof(sensor->node_names.endpoint),
+		 SWNODE_GRAPH_ENDPOINT_NAME_FMT, 0); /* And endpoint 0 */
+}
+
+static void atomisp_csi2_init_swnode_group(struct atomisp_csi2_sensor *sensor)
+{
+	struct software_node *nodes = sensor->swnodes;
+
+	sensor->group[SWNODE_SENSOR] = &nodes[SWNODE_SENSOR];
+	sensor->group[SWNODE_SENSOR_PORT] = &nodes[SWNODE_SENSOR_PORT];
+	sensor->group[SWNODE_SENSOR_ENDPOINT] = &nodes[SWNODE_SENSOR_ENDPOINT];
+	sensor->group[SWNODE_CSI2_PORT] = &nodes[SWNODE_CSI2_PORT];
+	sensor->group[SWNODE_CSI2_ENDPOINT] = &nodes[SWNODE_CSI2_ENDPOINT];
+}
+
+static void atomisp_csi2_create_connection_swnodes(struct atomisp_csi2_bridge *bridge,
+						   struct atomisp_csi2_sensor *sensor)
+{
+	struct software_node *nodes = sensor->swnodes;
+
+	atomisp_csi2_init_swnode_names(sensor);
+
+	nodes[SWNODE_SENSOR] = NODE_SENSOR(sensor->name,
+					   sensor->dev_properties);
+	nodes[SWNODE_SENSOR_PORT] = NODE_PORT(sensor->node_names.port,
+					      &nodes[SWNODE_SENSOR]);
+	nodes[SWNODE_SENSOR_ENDPOINT] = NODE_ENDPOINT(sensor->node_names.endpoint,
+						      &nodes[SWNODE_SENSOR_PORT],
+						      sensor->ep_properties);
+	nodes[SWNODE_CSI2_PORT] = NODE_PORT(sensor->node_names.remote_port,
+					    &bridge->csi2_node);
+	nodes[SWNODE_CSI2_ENDPOINT] = NODE_ENDPOINT(sensor->node_names.endpoint,
+						    &nodes[SWNODE_CSI2_PORT],
+						    sensor->csi2_properties);
+
+	atomisp_csi2_init_swnode_group(sensor);
+}
+
+static void atomisp_csi2_unregister_sensors(struct atomisp_csi2_bridge *bridge)
+{
+	struct atomisp_csi2_sensor *sensor;
+	unsigned int i;
+
+	for (i = 0; i < bridge->n_sensors; i++) {
+		sensor = &bridge->sensors[i];
+		software_node_unregister_node_group(sensor->group);
+		acpi_dev_put(sensor->adev);
+	}
+}
+
+static int atomisp_csi2_connect_sensor(const struct atomisp_csi2_sensor_config *cfg,
+				       struct atomisp_csi2_bridge *bridge,
+				       struct atomisp_device *isp)
+{
+	struct fwnode_handle *fwnode, *primary;
+	struct atomisp_csi2_sensor *sensor;
+	struct acpi_device *adev;
+	int ret;
+
+	for_each_acpi_dev_match(adev, cfg->hid, NULL, -1) {
+		if (!adev->status.enabled)
+			continue;
+
+		if (bridge->n_sensors >= ATOMISP_CAMERA_NR_PORTS) {
+			dev_err(isp->dev, "Exceeded available CSI2 ports\n");
+			ret = -EINVAL;
+			goto err_put_adev;
+		}
+
+		sensor = &bridge->sensors[bridge->n_sensors];
+
+		sensor->port = atomisp_csi2_get_port(adev);
+		if (sensor->port >= ATOMISP_CAMERA_NR_PORTS) {
+			dev_err(&adev->dev, "Invalid port: %d\n", sensor->port);
+			ret = -EINVAL;
+			goto err_put_adev;
+		}
+
+		sensor->lanes = gmin_cfg_get_int(adev, "CsiLanes", cfg->lanes);
+		if (sensor->lanes > CSI2_MAX_LANES) {
+			dev_err(&adev->dev, "Invalid number of lanes: %d\n", sensor->lanes);
+			ret = -EINVAL;
+			goto err_put_adev;
+		}
+
+		snprintf(sensor->name, sizeof(sensor->name), "%s-%u",
+			 cfg->hid, sensor->port);
+
+		atomisp_csi2_create_fwnode_properties(sensor, bridge, cfg);
+		atomisp_csi2_create_connection_swnodes(bridge, sensor);
+
+		ret = software_node_register_node_group(sensor->group);
+		if (ret)
+			goto err_put_adev;
+
+		fwnode = software_node_fwnode(&sensor->swnodes[SWNODE_SENSOR]);
+		if (!fwnode) {
+			ret = -ENODEV;
+			goto err_free_swnodes;
+		}
+
+		sensor->adev = acpi_dev_get(adev);
+
+		primary = acpi_fwnode_handle(adev);
+		primary->secondary = fwnode;
+
+		dev_info(isp->dev, "Found supported sensor %s\n", acpi_dev_name(adev));
+
+		bridge->n_sensors++;
+	}
+
+	return 0;
+
+err_free_swnodes:
+	software_node_unregister_node_group(sensor->group);
+err_put_adev:
+	acpi_dev_put(adev);
+	return ret;
+}
+
+static int atomisp_csi2_connect_sensors(struct atomisp_csi2_bridge *bridge,
+					struct atomisp_device *isp)
+{
+	unsigned int i;
+	int ret;
+
+	for (i = 0; i < ARRAY_SIZE(supported_sensors); i++) {
+		const struct atomisp_csi2_sensor_config *cfg = &supported_sensors[i];
+
+		ret = atomisp_csi2_connect_sensor(cfg, bridge, isp);
+		if (ret)
+			goto err_unregister_sensors;
+	}
+
+	return 0;
+
+err_unregister_sensors:
+	atomisp_csi2_unregister_sensors(bridge);
+	return ret;
+}
+
+int atomisp_csi2_bridge_init(struct atomisp_device *isp)
+{
+	struct atomisp_csi2_bridge *bridge;
+	struct device *dev = isp->dev;
+	struct fwnode_handle *fwnode;
+	int i, ret;
+
+	/*
+	 * This function is intended to run only once and then leave
+	 * the created nodes attached even after a rmmod, therefor:
+	 * 1. The bridge memory is leaked deliberately on success
+	 * 2. If a secondary fwnode is already set exit early.
+	 */
+	if (dev->fwnode && dev->fwnode->secondary)
+		return 0;
+
+	bridge = kzalloc(sizeof(*bridge), GFP_KERNEL);
+	if (!bridge)
+		return -ENOMEM;
+
+	strscpy(bridge->csi2_node_name, "atomisp-csi2", sizeof(bridge->csi2_node_name));
+	bridge->csi2_node.name = bridge->csi2_node_name;
+
+	ret = software_node_register(&bridge->csi2_node);
+	if (ret < 0) {
+		dev_err(dev, "Failed to register the CSI2 HID node\n");
+		goto err_free_bridge;
+	}
+
+	/*
+	 * Map the lane arrangement, which is fixed for the ISP2 (meaning we
+	 * only need one, rather than one per sensor). We include it as a
+	 * member of the bridge struct rather than a global variable so
+	 * that it survives if the module is unloaded along with the rest of
+	 * the struct.
+	 */
+	for (i = 0; i < CSI2_MAX_LANES; i++)
+		bridge->data_lanes[i] = i + 1;
+
+	ret = atomisp_csi2_connect_sensors(bridge, isp);
+	if (ret || bridge->n_sensors == 0)
+		goto err_unregister_csi2;
+
+	fwnode = software_node_fwnode(&bridge->csi2_node);
+	if (!fwnode) {
+		dev_err(dev, "Error getting fwnode from csi2 software_node\n");
+		ret = -ENODEV;
+		goto err_unregister_sensors;
+	}
+
+	set_secondary_fwnode(dev, fwnode);
+
+	return 0;
+
+err_unregister_sensors:
+	atomisp_csi2_unregister_sensors(bridge);
+err_unregister_csi2:
+	software_node_unregister(&bridge->csi2_node);
+err_free_bridge:
+	kfree(bridge);
+
+	return ret;
+}
+
+/******* V4L2 sub-device asynchronous registration callbacks***********/
+
+struct sensor_async_subdev {
+	struct v4l2_async_subdev asd;
+	int port;
+};
+
+#define to_sensor_asd(a)	container_of(a, struct sensor_async_subdev, asd)
+#define notifier_to_atomisp(n)	container_of(n, struct atomisp_device, notifier)
+
+/* .bound() notifier callback when a match is found */
+static int atomisp_notifier_bound(struct v4l2_async_notifier *notifier,
+				  struct v4l2_subdev *sd,
+				  struct v4l2_async_subdev *asd)
+{
+	struct atomisp_device *isp = notifier_to_atomisp(notifier);
+	struct sensor_async_subdev *s_asd = to_sensor_asd(asd);
+
+	if (s_asd->port >= ATOMISP_CAMERA_NR_PORTS) {
+		dev_err(isp->dev, "port %d not supported\n", s_asd->port);
+		return -EINVAL;
+	}
+
+	if (isp->sensor_subdevs[s_asd->port]) {
+		dev_err(isp->dev, "port %d already has a sensor attached\n", s_asd->port);
+		return -EBUSY;
+	}
+
+	isp->sensor_subdevs[s_asd->port] = sd;
+	return 0;
+}
+
+/* The .unbind callback */
+static void atomisp_notifier_unbind(struct v4l2_async_notifier *notifier,
+				    struct v4l2_subdev *sd,
+				    struct v4l2_async_subdev *asd)
+{
+	struct atomisp_device *isp = notifier_to_atomisp(notifier);
+	struct sensor_async_subdev *s_asd = to_sensor_asd(asd);
+
+	isp->sensor_subdevs[s_asd->port] = NULL;
+}
+
+/* .complete() is called after all subdevices have been located */
+static int atomisp_notifier_complete(struct v4l2_async_notifier *notifier)
+{
+	struct atomisp_device *isp = notifier_to_atomisp(notifier);
+
+	return atomisp_register_device_nodes(isp);
+}
+
+static const struct v4l2_async_notifier_operations atomisp_async_ops = {
+	.bound = atomisp_notifier_bound,
+	.unbind = atomisp_notifier_unbind,
+	.complete = atomisp_notifier_complete,
+};
+
+int atomisp_csi2_bridge_parse_firmware(struct atomisp_device *isp)
+{
+	int i, mipi_port, ret;
+
+	v4l2_async_nf_init(&isp->notifier);
+	isp->notifier.ops = &atomisp_async_ops;
+
+	for (i = 0; i < ATOMISP_CAMERA_NR_PORTS; i++) {
+		struct v4l2_fwnode_endpoint vep = {
+			.bus_type = V4L2_MBUS_CSI2_DPHY
+		};
+		struct sensor_async_subdev *s_asd;
+		struct fwnode_handle *ep;
+
+		ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(isp->dev), i, 0,
+						     FWNODE_GRAPH_ENDPOINT_NEXT);
+		if (!ep)
+			continue;
+
+		ret = v4l2_fwnode_endpoint_parse(ep, &vep);
+		if (ret)
+			goto err_parse;
+
+		if (vep.base.port >= ATOMISP_CAMERA_NR_PORTS) {
+			dev_err(isp->dev, "port %d not supported\n", vep.base.port);
+			ret = -EINVAL;
+			goto err_parse;
+		}
+
+		mipi_port = atomisp_port_to_mipi_port(isp, vep.base.port);
+		isp->sensor_lanes[mipi_port] = vep.bus.mipi_csi2.num_data_lanes;
+
+		s_asd = v4l2_async_nf_add_fwnode_remote(&isp->notifier, ep,
+							struct sensor_async_subdev);
+		if (IS_ERR(s_asd)) {
+			ret = PTR_ERR(s_asd);
+			goto err_parse;
+		}
+
+		s_asd->port = vep.base.port;
+
+		fwnode_handle_put(ep);
+		continue;
+
+err_parse:
+		fwnode_handle_put(ep);
+		return ret;
+	}
+
+	return 0;
+}
diff --git a/drivers/staging/media/atomisp/pci/atomisp_internal.h b/drivers/staging/media/atomisp/pci/atomisp_internal.h
index 514c360d4d03..e59c0f1e7f53 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_internal.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_internal.h
@@ -27,6 +27,7 @@
 #include <linux/idr.h>
 
 #include <media/media-device.h>
+#include <media/v4l2-async.h>
 #include <media/v4l2-subdev.h>
 
 /* ISP2400*/
@@ -173,6 +174,7 @@ struct atomisp_device {
 	struct v4l2_device v4l2_dev;
 	struct media_device media_dev;
 	struct atomisp_sub_device asd;
+	struct v4l2_async_notifier notifier;
 	struct atomisp_platform_data *pdata;
 	void *mmu_l1_base;
 	void __iomem *base;
diff --git a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
index ef04effc66bf..802c16697ca6 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
@@ -27,6 +27,7 @@
 #include <linux/dmi.h>
 #include <linux/interrupt.h>
 #include <linux/bits.h>
+#include <media/v4l2-fwnode.h>
 
 #include <asm/iosf_mbi.h>
 
@@ -782,7 +783,11 @@ static int atomisp_subdev_probe(struct atomisp_device *isp)
 {
 	const struct atomisp_platform_data *pdata;
 	struct intel_v4l2_subdev_table *subdevs;
-	int ret, mipi_port, count;
+	int ret, mipi_port;
+
+	ret = atomisp_csi2_bridge_parse_firmware(isp);
+	if (ret)
+		return ret;
 
 	pdata = atomisp_get_platform_data();
 	if (!pdata) {
@@ -790,23 +795,12 @@ static int atomisp_subdev_probe(struct atomisp_device *isp)
 		return 0;
 	}
 
-	/* FIXME: should return -EPROBE_DEFER if not all subdevs were probed */
-	for (count = 0; count < SUBDEV_WAIT_TIMEOUT_MAX_COUNT; count++) {
-		int camera_count = 0;
-
-		for (subdevs = pdata->subdevs; subdevs->type; ++subdevs) {
-			if (subdevs->type == RAW_CAMERA)
-				camera_count++;
-		}
-		if (camera_count)
-			break;
-		msleep(SUBDEV_WAIT_TIMEOUT);
-	}
-	/* Wait more time to give more time for subdev init code to finish */
-	msleep(5 * SUBDEV_WAIT_TIMEOUT);
-
-	/* FIXME: should, instead, use I2C probe */
-
+	/*
+	 * TODO: this is left here for now to allow testing atomisp-sensor
+	 * drivers which are still using the atomisp_gmin_platform infra before
+	 * converting them to standard v4l2 sensor drivers using runtime-pm +
+	 * ACPI for pm and v4l2_async_register_subdev_sensor() registration.
+	 */
 	for (subdevs = pdata->subdevs; subdevs->type; ++subdevs) {
 		ret = v4l2_device_register_subdev(&isp->v4l2_dev, subdevs->subdev);
 		if (ret)
@@ -937,7 +931,7 @@ static int atomisp_register_entities(struct atomisp_device *isp)
 	return ret;
 }
 
-static int atomisp_register_device_nodes(struct atomisp_device *isp)
+int atomisp_register_device_nodes(struct atomisp_device *isp)
 {
 	struct atomisp_input_subdev *input;
 	int i, err;
@@ -1429,9 +1423,11 @@ static int atomisp_pci_probe(struct pci_dev *pdev, const struct pci_device_id *i
 	isp->firmware = NULL;
 	isp->css_env.isp_css_fw.data = NULL;
 
-	err = atomisp_register_device_nodes(isp);
-	if (err)
+	err = v4l2_async_nf_register(&isp->v4l2_dev, &isp->notifier);
+	if (err) {
+		dev_err(isp->dev, "failed to register async notifier : %d\n", err);
 		goto css_init_fail;
+	}
 
 	atomisp_drvfs_init(isp);
 
diff --git a/drivers/staging/media/atomisp/pci/atomisp_v4l2.h b/drivers/staging/media/atomisp/pci/atomisp_v4l2.h
index c8ee3ad83320..fad9573374b3 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_v4l2.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_v4l2.h
@@ -30,5 +30,6 @@ int atomisp_video_init(struct atomisp_video_pipe *video);
 void atomisp_video_unregister(struct atomisp_video_pipe *video);
 const struct firmware *atomisp_load_firmware(struct atomisp_device *isp);
 int atomisp_csi_lane_config(struct atomisp_device *isp);
+int atomisp_register_device_nodes(struct atomisp_device *isp);
 
 #endif /* __ATOMISP_V4L2_H__ */
