diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
index 00bc898b0189..9f3af84f5d5d 100644
--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
@@ -1,12 +1,11 @@
 // SPDX-License-Identifier: GPL-2.0
 /* Copyright 2011 Broadcom Corporation.  All rights reserved. */
 
-#include <linux/platform_device.h>
-
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/module.h>
 
+#include "../interface/vchiq_arm/vchiq_arm.h"
 #include "bcm2835.h"
 
 static bool enable_hdmi;
@@ -268,9 +267,8 @@ static int snd_add_child_devices(struct device *device, u32 numchans)
 	return 0;
 }
 
-static int snd_bcm2835_alsa_probe(struct platform_device *pdev)
+static int snd_bcm2835_alsa_probe(struct device *dev)
 {
-	struct device *dev = &pdev->dev;
 	int err;
 
 	if (num_channels <= 0 || num_channels > MAX_SUBSTREAMS) {
@@ -292,30 +290,29 @@ static int snd_bcm2835_alsa_probe(struct platform_device *pdev)
 
 #ifdef CONFIG_PM
 
-static int snd_bcm2835_alsa_suspend(struct platform_device *pdev,
+static int snd_bcm2835_alsa_suspend(struct device *pdev,
 				    pm_message_t state)
 {
 	return 0;
 }
 
-static int snd_bcm2835_alsa_resume(struct platform_device *pdev)
+static int snd_bcm2835_alsa_resume(struct device *pdev)
 {
 	return 0;
 }
 
 #endif
 
-static struct platform_driver bcm2835_alsa_driver = {
+static struct device_driver bcm2835_alsa_driver = {
 	.probe = snd_bcm2835_alsa_probe,
 #ifdef CONFIG_PM
 	.suspend = snd_bcm2835_alsa_suspend,
 	.resume = snd_bcm2835_alsa_resume,
 #endif
-	.driver = {
-		.name = "bcm2835_audio",
-	},
+	.name = "bcm2835_audio",
+	.bus = &vchiq_bus_type,
 };
-module_platform_driver(bcm2835_alsa_driver);
+module_driver(bcm2835_alsa_driver, driver_register, driver_unregister);
 
 MODULE_AUTHOR("Dom Cobley");
 MODULE_DESCRIPTION("Alsa driver for BCM2835 chip");
diff --git a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
index 4f81765912ea..199a49f9ec1e 100644
--- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
+++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
@@ -24,8 +24,8 @@
 #include <media/v4l2-event.h>
 #include <media/v4l2-common.h>
 #include <linux/delay.h>
-#include <linux/platform_device.h>
 
+#include "../interface/vchiq_arm/vchiq_arm.h"
 #include "../vchiq-mmal/mmal-common.h"
 #include "../vchiq-mmal/mmal-encodings.h"
 #include "../vchiq-mmal/mmal-vchiq.h"
@@ -1841,7 +1841,7 @@ static struct v4l2_format default_v4l2_format = {
 	.fmt.pix.sizeimage = 1024 * 768,
 };
 
-static int bcm2835_mmal_probe(struct platform_device *pdev)
+static int bcm2835_mmal_probe(struct device *device)
 {
 	int ret;
 	struct bcm2835_mmal_dev *dev;
@@ -1896,7 +1896,7 @@ static int bcm2835_mmal_probe(struct platform_device *pdev)
 						       &camera_instance);
 		ret = v4l2_device_register(NULL, &dev->v4l2_dev);
 		if (ret) {
-			dev_err(&pdev->dev, "%s: could not register V4L2 device: %d\n",
+			dev_err(device, "%s: could not register V4L2 device: %d\n",
 				__func__, ret);
 			goto free_dev;
 		}
@@ -1976,7 +1976,7 @@ static int bcm2835_mmal_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int bcm2835_mmal_remove(struct platform_device *pdev)
+static int bcm2835_mmal_remove(struct device *device)
 {
 	int camera;
 	struct vchiq_mmal_instance *instance = gdev[0]->instance;
@@ -1990,15 +1990,14 @@ static int bcm2835_mmal_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct platform_driver bcm2835_camera_driver = {
+static struct device_driver bcm2835_camera_driver = {
+	.name		= "bcm2835-camera",
 	.probe		= bcm2835_mmal_probe,
 	.remove		= bcm2835_mmal_remove,
-	.driver		= {
-		.name	= "bcm2835-camera",
-	},
+	.bus		= &vchiq_bus_type,
 };
 
-module_platform_driver(bcm2835_camera_driver)
+module_driver(bcm2835_camera_driver, driver_register, driver_unregister)
 
 MODULE_DESCRIPTION("Broadcom 2835 MMAL video capture");
 MODULE_AUTHOR("Vincent Sanders");
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
index 22de23f3af02..86c8e5df7cf6 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
@@ -12,6 +12,8 @@
 #include <linux/cdev.h>
 #include <linux/fs.h>
 #include <linux/device.h>
+#include <linux/device/bus.h>
+#include <linux/string.h>
 #include <linux/mm.h>
 #include <linux/highmem.h>
 #include <linux/pagemap.h>
@@ -65,9 +67,6 @@ int vchiq_susp_log_level = VCHIQ_LOG_ERROR;
 DEFINE_SPINLOCK(msg_queue_spinlock);
 struct vchiq_state g_state;
 
-static struct platform_device *bcm2835_camera;
-static struct platform_device *bcm2835_audio;
-
 struct vchiq_drvdata {
 	const unsigned int cache_line_size;
 	struct rpi_firmware *fw;
@@ -132,6 +131,51 @@ struct vchiq_pagelist_info {
 	unsigned int scatterlist_mapped;
 };
 
+struct vchiq_device {
+	const char *name;
+	struct device dev;
+};
+
+static ssize_t vchiq_dev_show(struct device *dev,
+			      struct device_attribute *attr, char *buf)
+{
+	struct vchiq_device *device = container_of(dev, struct vchiq_device, dev);
+
+	return sprintf(buf, "%s", device->name);
+}
+
+static DEVICE_ATTR_RO(vchiq_dev);
+
+static struct attribute *vchiq_dev_attrs[] = {
+	&dev_attr_vchiq_dev.attr,
+	NULL
+};
+
+ATTRIBUTE_GROUPS(vchiq_dev);
+
+static const struct device_type vchiq_device_type = {
+	.groups         = vchiq_dev_groups
+};
+
+static int vchiq_bus_type_match(struct device *dev, struct device_driver *drv)
+{
+	if (dev->bus == &vchiq_bus_type &&
+	    strcmp(dev_name(dev), drv->name) == 0)
+		return 1;
+	return 0;
+}
+
+struct bus_type vchiq_bus_type = {
+	.name   = "vchiq-bus",
+	.match  = vchiq_bus_type_match,
+};
+EXPORT_SYMBOL(vchiq_bus_type);
+
+static const char *const vchiq_devices[] = {
+	"bcm2835_audio",
+	"bcm2835-camera",
+};
+
 static void __iomem *g_regs;
 /* This value is the size of the L2 cache lines as understood by the
  * VPU firmware, which determines the required alignment of the
@@ -1763,26 +1807,52 @@ static const struct of_device_id vchiq_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, vchiq_of_match);
 
-static struct platform_device *
+static void
+vchiq_release_device(struct device *dev)
+{
+	struct vchiq_device *device;
+
+	device = container_of(dev, struct vchiq_device, dev);
+	kfree(device);
+}
+
+static int
 vchiq_register_child(struct platform_device *pdev, const char *name)
 {
-	struct platform_device_info pdevinfo;
-	struct platform_device *child;
+	struct vchiq_device *device = NULL;
+	int ret;
 
-	memset(&pdevinfo, 0, sizeof(pdevinfo));
+	device = kzalloc(sizeof(*device), GFP_KERNEL);
+	if (!device)
+		return -ENOMEM;
 
-	pdevinfo.parent = &pdev->dev;
-	pdevinfo.name = name;
-	pdevinfo.id = PLATFORM_DEVID_NONE;
-	pdevinfo.dma_mask = DMA_BIT_MASK(32);
+	device->name = name;
+	device->dev.init_name = name;
+	device->dev.parent = &pdev->dev;
+	device->dev.bus = &vchiq_bus_type;
+	device->dev.type = &vchiq_device_type;
+	device->dev.release = vchiq_release_device;
+
+	ret = dma_set_mask_and_coherent(&device->dev, DMA_BIT_MASK(32));
+	if (ret < 0) {
+		vchiq_release_device(&device->dev);
+		return ret;
+	}
 
-	child = platform_device_register_full(&pdevinfo);
-	if (IS_ERR(child)) {
-		dev_warn(&pdev->dev, "%s not registered\n", name);
-		child = NULL;
+	ret = device_register(&device->dev);
+	if (ret) {
+		put_device(&device->dev);
+		return -EINVAL;
 	}
 
-	return child;
+	return 0;
+}
+
+static int
+vchiq_unregister_child(struct device *dev, void *data)
+{
+	device_unregister(dev);
+	return 0;
 }
 
 static int vchiq_probe(struct platform_device *pdev)
@@ -1790,7 +1860,7 @@ static int vchiq_probe(struct platform_device *pdev)
 	struct device_node *fw_node;
 	const struct of_device_id *of_id;
 	struct vchiq_drvdata *drvdata;
-	int err;
+	int i, err;
 
 	of_id = of_match_node(vchiq_of_match, pdev->dev.of_node);
 	drvdata = (struct vchiq_drvdata *)of_id->data;
@@ -1832,8 +1902,12 @@ static int vchiq_probe(struct platform_device *pdev)
 		goto error_exit;
 	}
 
-	bcm2835_camera = vchiq_register_child(pdev, "bcm2835-camera");
-	bcm2835_audio = vchiq_register_child(pdev, "bcm2835_audio");
+	for (i = 0; i < ARRAY_SIZE(vchiq_devices); i++) {
+		err = vchiq_register_child(pdev, vchiq_devices[i]);
+		if (!err)
+			dev_err(&pdev->dev, "Failed to register %s vchiq device\n",
+				vchiq_devices[i]);
+	}
 
 	return 0;
 
@@ -1845,8 +1919,8 @@ static int vchiq_probe(struct platform_device *pdev)
 
 static int vchiq_remove(struct platform_device *pdev)
 {
-	platform_device_unregister(bcm2835_audio);
-	platform_device_unregister(bcm2835_camera);
+	bus_for_each_dev(&vchiq_bus_type, NULL, NULL, vchiq_unregister_child);
+
 	vchiq_debugfs_deinit();
 	vchiq_deregister_chrdev();
 
@@ -1866,6 +1940,10 @@ static int __init vchiq_driver_init(void)
 {
 	int ret;
 
+	ret = bus_register(&vchiq_bus_type);
+	if (ret)
+		pr_err("Failed to register %s\n", vchiq_bus_type.name);
+
 	ret = platform_driver_register(&vchiq_driver);
 	if (ret)
 		pr_err("Failed to register vchiq driver\n");
@@ -1876,6 +1954,7 @@ module_init(vchiq_driver_init);
 
 static void __exit vchiq_driver_exit(void)
 {
+	bus_unregister(&vchiq_bus_type);
 	platform_driver_unregister(&vchiq_driver);
 }
 module_exit(vchiq_driver_exit);
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h
index 2fb31f9b527f..98c3af32774a 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h
@@ -81,6 +81,7 @@ extern int vchiq_susp_log_level;
 
 extern spinlock_t msg_queue_spinlock;
 extern struct vchiq_state g_state;
+extern struct bus_type vchiq_bus_type;
 
 extern struct vchiq_state *
 vchiq_get_state(void);
