[DRIVER MODEL] Convert platform drivers to use struct platform_driver

This allows us to eliminate the casts in the drivers, and eventually
remove the use of the device_driver function pointer methods for
platform device drivers.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/mtd/maps/bast-flash.c

@@ -63,11 +63,6 @@ struct bast_flash_info {
 
 static const char *probes[] = { "RedBoot", "cmdlinepart", NULL };
 
-static struct bast_flash_info *to_bast_info(struct device *dev)
-{
-	return (struct bast_flash_info *)dev_get_drvdata(dev);
-}
-
 static void bast_flash_setrw(int to)
 {
 	unsigned int val;
@@ -87,11 +82,11 @@ static void bast_flash_setrw(int to)
 	local_irq_restore(flags);
 }
 
-static int bast_flash_remove(struct device *dev)
+static int bast_flash_remove(struct platform_device *pdev)
 {
-	struct bast_flash_info *info = to_bast_info(dev);
+	struct bast_flash_info *info = platform_get_drvdata(pdev);
 
-	dev_set_drvdata(dev, NULL);
+	platform_set_drvdata(pdev, NULL);
 
 	if (info == NULL)
 		return 0;
@@ -116,9 +111,8 @@ static int bast_flash_remove(struct device *dev)
 	return 0;
 }
 
-static int bast_flash_probe(struct device *dev)
+static int bast_flash_probe(struct platform_device *pdev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
 	struct bast_flash_info *info;
 	struct resource *res;
 	int err = 0;
@@ -131,13 +125,13 @@ static int bast_flash_probe(struct device *dev)
 	}
 
 	memzero(info, sizeof(*info));
-	dev_set_drvdata(dev, info);
+	platform_set_drvdata(pdev, info);
 
 	res = pdev->resource;  /* assume that the flash has one resource */
 
 	info->map.phys = res->start;
 	info->map.size = res->end - res->start + 1;
-	info->map.name = dev->bus_id;
+	info->map.name = pdev->dev.bus_id;	
 	info->map.bankwidth = 2;
 
 	if (info->map.size > AREA_MAXSIZE)
@@ -199,27 +193,28 @@ static int bast_flash_probe(struct device *dev)
 	/* fall through to exit error */
 
  exit_error:
-	bast_flash_remove(dev);
+	bast_flash_remove(pdev);
 	return err;
 }
 
-static struct device_driver bast_flash_driver = {
-	.name		= "bast-nor",
-	.owner		= THIS_MODULE,
-	.bus		= &platform_bus_type,
+static struct platform_driver bast_flash_driver = {
 	.probe		= bast_flash_probe,
 	.remove		= bast_flash_remove,
+	.driver		= {
+		.name	= "bast-nor",
+		.owner	= THIS_MODULE,
+	},
 };
 
 static int __init bast_flash_init(void)
 {
 	printk("BAST NOR-Flash Driver, (c) 2004 Simtec Electronics\n");
-	return driver_register(&bast_flash_driver);
+	return platform_driver_register(&bast_flash_driver);
 }
 
 static void __exit bast_flash_exit(void)
 {
-	driver_unregister(&bast_flash_driver);
+	platform_driver_unregister(&bast_flash_driver);
 }
 
 module_init(bast_flash_init);

drivers/mtd/maps/integrator-flash.c

@@ -67,9 +67,8 @@ static void armflash_set_vpp(struct map_info *map, int on)
 
 static const char *probes[] = { "cmdlinepart", "RedBoot", "afs", NULL };
 
-static int armflash_probe(struct device *_dev)
+static int armflash_probe(struct platform_device *dev)
 {
-	struct platform_device *dev = to_platform_device(_dev);
 	struct flash_platform_data *plat = dev->dev.platform_data;
 	struct resource *res = dev->resource;
 	unsigned int size = res->end - res->start + 1;
@@ -138,7 +137,7 @@ static int armflash_probe(struct device *_dev)
 	}
 
 	if (err == 0)
-		dev_set_drvdata(&dev->dev, info);
+		platform_set_drvdata(dev, info);
 
 	/*
 	 * If we got an error, free all resources.
@@ -163,12 +162,11 @@ static int armflash_probe(struct device *_dev)
 	return err;
 }
 
-static int armflash_remove(struct device *_dev)
+static int armflash_remove(struct platform_device *dev)
 {
-	struct platform_device *dev = to_platform_device(_dev);
-	struct armflash_info *info = dev_get_drvdata(&dev->dev);
+	struct armflash_info *info = platform_get_drvdata(dev);
 
-	dev_set_drvdata(&dev->dev, NULL);
+	platform_set_drvdata(dev, NULL);
 
 	if (info) {
 		if (info->mtd) {
@@ -190,21 +188,22 @@ static int armflash_remove(struct device *_dev)
 	return 0;
 }
 
-static struct device_driver armflash_driver = {
-	.name		= "armflash",
-	.bus		= &platform_bus_type,
+static struct platform_driver armflash_driver = {
 	.probe		= armflash_probe,
 	.remove		= armflash_remove,
+	.driver		= {
+		.name	= "armflash",
+	},
 };
 
 static int __init armflash_init(void)
 {
-	return driver_register(&armflash_driver);
+	return platform_driver_register(&armflash_driver);
 }
 
 static void __exit armflash_exit(void)
 {
-	driver_unregister(&armflash_driver);
+	platform_driver_unregister(&armflash_driver);
 }
 
 module_init(armflash_init);

drivers/mtd/maps/ixp2000.c

@@ -111,13 +111,12 @@ static void ixp2000_flash_copy_to(struct map_info *map, unsigned long to,
 }
 
 
-static int ixp2000_flash_remove(struct device *_dev)
+static int ixp2000_flash_remove(struct platform_device *dev)
 {
-	struct platform_device *dev = to_platform_device(_dev);
 	struct flash_platform_data *plat = dev->dev.platform_data;
-	struct ixp2000_flash_info *info = dev_get_drvdata(&dev->dev);
+	struct ixp2000_flash_info *info = platform_get_drvdata(dev);
 
-	dev_set_drvdata(&dev->dev, NULL);
+	platform_set_drvdata(dev, NULL);
 
 	if(!info)
 		return 0;
@@ -143,10 +142,9 @@ static int ixp2000_flash_remove(struct device *_dev)
 }
 
 
-static int ixp2000_flash_probe(struct device *_dev)
+static int ixp2000_flash_probe(struct platform_device *dev)
 {
 	static const char *probes[] = { "RedBoot", "cmdlinepart", NULL };
-	struct platform_device *dev = to_platform_device(_dev);
 	struct ixp2000_flash_data *ixp_data = dev->dev.platform_data;
 	struct flash_platform_data *plat;
 	struct ixp2000_flash_info *info;
@@ -177,7 +175,7 @@ static int ixp2000_flash_probe(struct device *_dev)
 	}
 	memzero(info, sizeof(struct ixp2000_flash_info));
 
-	dev_set_drvdata(&dev->dev, info);
+	platform_set_drvdata(dev, info);
 
 	/*
 	 * Tell the MTD layer we're not 1:1 mapped so that it does
@@ -248,25 +246,26 @@ static int ixp2000_flash_probe(struct device *_dev)
 	return 0;
 
 Error:
-	ixp2000_flash_remove(_dev);
+	ixp2000_flash_remove(dev);
 	return err;
 }
 
-static struct device_driver ixp2000_flash_driver = {
-	.name		= "IXP2000-Flash",
-	.bus		= &platform_bus_type,
+static struct platform_driver ixp2000_flash_driver = {
 	.probe		= &ixp2000_flash_probe,
 	.remove		= &ixp2000_flash_remove
+	.driver		= {
+		.name	= "IXP2000-Flash",
+	},
 };
 
 static int __init ixp2000_flash_init(void)
 {
-	return driver_register(&ixp2000_flash_driver);
+	return platform_driver_register(&ixp2000_flash_driver);
 }
 
 static void __exit ixp2000_flash_exit(void)
 {
-	driver_unregister(&ixp2000_flash_driver);
+	platform_driver_unregister(&ixp2000_flash_driver);
 }
 
 module_init(ixp2000_flash_init);

drivers/mtd/maps/ixp4xx.c

@@ -99,13 +99,12 @@ struct ixp4xx_flash_info {
 
 static const char *probes[] = { "RedBoot", "cmdlinepart", NULL };
 
-static int ixp4xx_flash_remove(struct device *_dev)
+static int ixp4xx_flash_remove(struct platform_device *dev)
 {
-	struct platform_device *dev = to_platform_device(_dev);
 	struct flash_platform_data *plat = dev->dev.platform_data;
-	struct ixp4xx_flash_info *info = dev_get_drvdata(&dev->dev);
+	struct ixp4xx_flash_info *info = platform_get_drvdata(dev);
 
-	dev_set_drvdata(&dev->dev, NULL);
+	platform_set_drvdata(dev, NULL);
 
 	if(!info)
 		return 0;
@@ -130,9 +129,8 @@ static int ixp4xx_flash_remove(struct device *_dev)
 	return 0;
 }
 
-static int ixp4xx_flash_probe(struct device *_dev)
+static int ixp4xx_flash_probe(struct platform_device *dev)
 {
-	struct platform_device *dev = to_platform_device(_dev);
 	struct flash_platform_data *plat = dev->dev.platform_data;
 	struct ixp4xx_flash_info *info;
 	int err = -1;
@@ -153,7 +151,7 @@ static int ixp4xx_flash_probe(struct device *_dev)
 	}
 	memzero(info, sizeof(struct ixp4xx_flash_info));
 
-	dev_set_drvdata(&dev->dev, info);
+	platform_set_drvdata(dev, info);
 
 	/*
 	 * Tell the MTD layer we're not 1:1 mapped so that it does
@@ -214,25 +212,26 @@ static int ixp4xx_flash_probe(struct device *_dev)
 	return 0;
 
 Error:
-	ixp4xx_flash_remove(_dev);
+	ixp4xx_flash_remove(dev);
 	return err;
 }
 
-static struct device_driver ixp4xx_flash_driver = {
-	.name		= "IXP4XX-Flash",
-	.bus		= &platform_bus_type,
+static struct platform_driver ixp4xx_flash_driver = {
 	.probe		= ixp4xx_flash_probe,
 	.remove		= ixp4xx_flash_remove,
+	.driver		= {
+		.name	= "IXP4XX-Flash",
+	},
 };
 
 static int __init ixp4xx_flash_init(void)
 {
-	return driver_register(&ixp4xx_flash_driver);
+	return platform_driver_register(&ixp4xx_flash_driver);
 }
 
 static void __exit ixp4xx_flash_exit(void)
 {
-	driver_unregister(&ixp4xx_flash_driver);
+	platform_driver_unregister(&ixp4xx_flash_driver);
 }
 
 

drivers/mtd/maps/omap_nor.c

@@ -70,11 +70,10 @@ static void omap_set_vpp(struct map_info *map, int enable)
 	}
 }
 
-static int __devinit omapflash_probe(struct device *dev)
+static int __devinit omapflash_probe(struct platform_device *pdev)
 {
 	int err;
 	struct omapflash_info *info;
-	struct platform_device *pdev = to_platform_device(dev);
 	struct flash_platform_data *pdata = pdev->dev.platform_data;
 	struct resource *res = pdev->resource;
 	unsigned long size = res->end - res->start + 1;
@@ -119,7 +118,7 @@ static int __devinit omapflash_probe(struct device *dev)
 #endif
 		add_mtd_device(info->mtd);
 
-	dev_set_drvdata(&pdev->dev, info);
+	platform_set_drvdata(pdev, info);
 
 	return 0;
 
@@ -133,12 +132,11 @@ out_free_info:
 	return err;
 }
 
-static int __devexit omapflash_remove(struct device *dev)
+static int __devexit omapflash_remove(struct platform_device *pdev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct omapflash_info *info = dev_get_drvdata(&pdev->dev);
+	struct omapflash_info *info = platform_get_drvdata(pdev);
 
-	dev_set_drvdata(&pdev->dev, NULL);
+	platform_set_drvdata(pdev, NULL);
 
 	if (info) {
 		if (info->parts) {
@@ -155,21 +153,22 @@ static int __devexit omapflash_remove(struct device *dev)
 	return 0;
 }
 
-static struct device_driver omapflash_driver = {
-	.name	= "omapflash",
-	.bus	= &platform_bus_type,
+static struct platform_driver omapflash_driver = {
 	.probe	= omapflash_probe,
 	.remove	= __devexit_p(omapflash_remove),
+	.driver = {
+		.name	= "omapflash",
+	},
 };
 
 static int __init omapflash_init(void)
 {
-	return driver_register(&omapflash_driver);
+	return platform_driver_register(&omapflash_driver);
 }
 
 static void __exit omapflash_exit(void)
 {
-	driver_unregister(&omapflash_driver);
+	platform_driver_unregister(&omapflash_driver);
 }
 
 module_init(omapflash_init);

drivers/mtd/maps/plat-ram.c

@@ -56,9 +56,9 @@ struct platram_info {
  * device private data to struct platram_info conversion
 */
 
-static inline struct platram_info *to_platram_info(struct device *dev)
+static inline struct platram_info *to_platram_info(struct platform_device *dev)
 {
-	return (struct platram_info *)dev_get_drvdata(dev);
+	return (struct platram_info *)platform_get_drvdata(dev);
 }
 
 /* platram_setrw
@@ -83,13 +83,13 @@ static inline void platram_setrw(struct platram_info *info, int to)
  * called to remove the device from the driver's control
 */
 
-static int platram_remove(struct device *dev)
+static int platram_remove(struct platform_device *pdev)
 {
-	struct platram_info *info = to_platram_info(dev);
+	struct platram_info *info = to_platram_info(pdev);
 
-	dev_set_drvdata(dev, NULL);
+	platform_set_drvdata(pdev, NULL);
 
-	dev_dbg(dev, "removing device\n");
+	dev_dbg(&pdev->dev, "removing device\n");
 
 	if (info == NULL)
 		return 0;
@@ -130,61 +130,60 @@ static int platram_remove(struct device *dev)
  * driver is found.
 */
 
-static int platram_probe(struct device *dev)
+static int platram_probe(struct platform_device *pdev)
 {
-	struct platform_device *pd = to_platform_device(dev);
 	struct platdata_mtd_ram	*pdata;
 	struct platram_info *info;
 	struct resource *res;
 	int err = 0;
 
-	dev_dbg(dev, "probe entered\n");
+	dev_dbg(&pdev->dev, "probe entered\n");
 
-	if (dev->platform_data == NULL) {
-		dev_err(dev, "no platform data supplied\n");
+	if (pdev->dev.platform_data == NULL) {
+		dev_err(&pdev->dev, "no platform data supplied\n");
 		err = -ENOENT;
 		goto exit_error;
 	}
 
-	pdata = dev->platform_data;
+	pdata = pdev->dev.platform_data;
 
 	info = kmalloc(sizeof(*info), GFP_KERNEL);
 	if (info == NULL) {
-		dev_err(dev, "no memory for flash info\n");
+		dev_err(&pdev->dev, "no memory for flash info\n");
 		err = -ENOMEM;
 		goto exit_error;
 	}
 
 	memset(info, 0, sizeof(*info));
-	dev_set_drvdata(dev, info);
+	platform_set_drvdata(pdev, info);
 
-	info->dev = dev;
+	info->dev = &pdev->dev;
 	info->pdata = pdata;
 
 	/* get the resource for the memory mapping */
 
-	res = platform_get_resource(pd, IORESOURCE_MEM, 0);
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
 	if (res == NULL) {
-		dev_err(dev, "no memory resource specified\n");
+		dev_err(&pdev->dev, "no memory resource specified\n");
 		err = -ENOENT;
 		goto exit_free;
 	}
 
-	dev_dbg(dev, "got platform resource %p (0x%lx)\n", res, res->start);
+	dev_dbg(&pdev->dev, "got platform resource %p (0x%lx)\n", res, res->start);
 
 	/* setup map parameters */
 
 	info->map.phys = res->start;
 	info->map.size = (res->end - res->start) + 1;
-	info->map.name = pdata->mapname != NULL ? pdata->mapname : (char *)pd->name;
+	info->map.name = pdata->mapname != NULL ? pdata->mapname : (char *)pdev->name;
 	info->map.bankwidth = pdata->bankwidth;
 
 	/* register our usage of the memory area */
 
-	info->area = request_mem_region(res->start, info->map.size, pd->name);
+	info->area = request_mem_region(res->start, info->map.size, pdev->name);
 	if (info->area == NULL) {
-		dev_err(dev, "failed to request memory region\n");
+		dev_err(&pdev->dev, "failed to request memory region\n");
 		err = -EIO;
 		goto exit_free;
 	}
@@ -192,23 +191,23 @@ static int platram_probe(struct device *dev)
 	/* remap the memory area */
 
 	info->map.virt = ioremap(res->start, info->map.size);
-	dev_dbg(dev, "virt %p, %lu bytes\n", info->map.virt, info->map.size);
+	dev_dbg(&pdev->dev, "virt %p, %lu bytes\n", info->map.virt, info->map.size);
 
 	if (info->map.virt == NULL) {
-		dev_err(dev, "failed to ioremap() region\n");
+		dev_err(&pdev->dev, "failed to ioremap() region\n");
 		err = -EIO;
 		goto exit_free;
 	}
 
 	simple_map_init(&info->map);
 
-	dev_dbg(dev, "initialised map, probing for mtd\n");
+	dev_dbg(&pdev->dev, "initialised map, probing for mtd\n");
 
 	/* probe for the right mtd map driver */
 
 	info->mtd = do_map_probe("map_ram" , &info->map);
 	if (info->mtd == NULL) {
-		dev_err(dev, "failed to probe for map_ram\n");
+		dev_err(&pdev->dev, "failed to probe for map_ram\n");
 		err = -ENOMEM;
 		goto exit_free;
 	}
@@ -237,27 +236,28 @@ static int platram_probe(struct device *dev)
 #endif /* CONFIG_MTD_PARTITIONS */
 
 	if (add_mtd_device(info->mtd)) {
-		dev_err(dev, "add_mtd_device() failed\n");
+		dev_err(&pdev->dev, "add_mtd_device() failed\n");
 		err = -ENOMEM;
 	}
 
-	dev_info(dev, "registered mtd device\n");
+	dev_info(&pdev->dev, "registered mtd device\n");
 	return err;
 
  exit_free:
-	platram_remove(dev);
+	platram_remove(pdev);
  exit_error:
 	return err;
 }
 
 /* device driver info */
 
-static struct device_driver platram_driver = {
-	.name		= "mtd-ram",
-	.owner		= THIS_MODULE,
-	.bus		= &platform_bus_type,
+static struct platform_driver platram_driver = {
 	.probe		= platram_probe,
 	.remove		= platram_remove,
+	.driver		= {
+		.name	= "mtd-ram",
+		.owner	= THIS_MODULE,
+	},
 };
 
 /* module init/exit */
@@ -265,12 +265,12 @@ static struct device_driver platram_driver = {
 static int __init platram_init(void)
 {
 	printk("Generic platform RAM MTD, (c) 2004 Simtec Electronics\n");
-	return driver_register(&platram_driver);
+	return platform_driver_register(&platram_driver);
 }
 
 static void __exit platram_exit(void)
 {
-	driver_unregister(&platram_driver);
+	platform_driver_unregister(&platram_driver);
 }
 
 module_init(platram_init);

drivers/mtd/maps/sa1100-flash.c

@@ -356,9 +356,8 @@ sa1100_setup_mtd(struct platform_device *pdev, struct flash_platform_data *plat)
 
 static const char *part_probes[] = { "cmdlinepart", "RedBoot", NULL };
 
-static int __init sa1100_mtd_probe(struct device *dev)
+static int __init sa1100_mtd_probe(struct platform_device *pdev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
 	struct flash_platform_data *plat = pdev->dev.platform_data;
 	struct mtd_partition *parts;
 	const char *part_type = NULL;
@@ -402,28 +401,28 @@ static int __init sa1100_mtd_probe(struct device *dev)
 
 	info->nr_parts = nr_parts;
 
-	dev_set_drvdata(dev, info);
+	platform_set_drvdata(pdev, info);
 	err = 0;
 
  out:
 	return err;
 }
 
-static int __exit sa1100_mtd_remove(struct device *dev)
+static int __exit sa1100_mtd_remove(struct platform_device *pdev)
 {
-	struct sa_info *info = dev_get_drvdata(dev);
-	struct flash_platform_data *plat = dev->platform_data;
+	struct sa_info *info = platform_get_drvdata(pdev);
+	struct flash_platform_data *plat = pdev->dev.platform_data;
 
-	dev_set_drvdata(dev, NULL);
+	platform_set_drvdata(pdev, NULL);
 	sa1100_destroy(info, plat);
 
 	return 0;
 }
 
 #ifdef CONFIG_PM
-static int sa1100_mtd_suspend(struct device *dev, pm_message_t state)
+static int sa1100_mtd_suspend(struct platform_device *dev, pm_message_t state)
 {
-	struct sa_info *info = dev_get_drvdata(dev);
+	struct sa_info *info = platform_get_drvdata(dev);
 	int ret = 0;
 
 	if (info)
@@ -432,17 +431,17 @@ static int sa1100_mtd_suspend(struct device *dev, pm_message_t state)
 	return ret;
 }
 
-static int sa1100_mtd_resume(struct device *dev)
+static int sa1100_mtd_resume(struct platform_device *dev)
 {
-	struct sa_info *info = dev_get_drvdata(dev);
+	struct sa_info *info = platform_get_drvdata(dev);
 	if (info)
 		info->mtd->resume(info->mtd);
 	return 0;
 }
 
-static void sa1100_mtd_shutdown(struct device *dev)
+static void sa1100_mtd_shutdown(struct platform_device *dev)
 {
-	struct sa_info *info = dev_get_drvdata(dev);
+	struct sa_info *info = platform_get_drvdata(dev);
 	if (info && info->mtd->suspend(info->mtd) == 0)
 		info->mtd->resume(info->mtd);
 }
@@ -452,24 +451,25 @@ static void sa1100_mtd_shutdown(struct device *dev)
 #define sa1100_mtd_shutdown NULL
 #endif
 
-static struct device_driver sa1100_mtd_driver = {
-	.name		= "flash",
-	.bus		= &platform_bus_type,
+static struct platform_driver sa1100_mtd_driver = {
 	.probe		= sa1100_mtd_probe,
 	.remove		= __exit_p(sa1100_mtd_remove),
 	.suspend	= sa1100_mtd_suspend,
 	.resume		= sa1100_mtd_resume,
 	.shutdown	= sa1100_mtd_shutdown,
+	.driver		= {
+		.name	= "flash",
+	},
 };
 
 static int __init sa1100_mtd_init(void)
 {
-	return driver_register(&sa1100_mtd_driver);
+	return platform_driver_register(&sa1100_mtd_driver);
 }
 
 static void __exit sa1100_mtd_exit(void)
 {
-	driver_unregister(&sa1100_mtd_driver);
+	platform_driver_unregister(&sa1100_mtd_driver);
 }
 
 module_init(sa1100_mtd_init);

drivers/mtd/nand/s3c2410.c

@@ -125,14 +125,14 @@ static struct s3c2410_nand_info *s3c2410_nand_mtd_toinfo(struct mtd_info *mtd)
 	return s3c2410_nand_mtd_toours(mtd)->info;
 }
 
-static struct s3c2410_nand_info *to_nand_info(struct device *dev)
+static struct s3c2410_nand_info *to_nand_info(struct platform_device *dev)
 {
-	return dev_get_drvdata(dev);
+	return platform_get_drvdata(dev);
 }
 
-static struct s3c2410_platform_nand *to_nand_plat(struct device *dev)
+static struct s3c2410_platform_nand *to_nand_plat(struct platform_device *dev)
 {
-	return dev->platform_data;
+	return dev->dev.platform_data;
 }
 
 /* timing calculations */
@@ -165,9 +165,9 @@ static int s3c2410_nand_calc_rate(int wanted, unsigned long clk, int max)
 /* controller setup */
 
 static int s3c2410_nand_inithw(struct s3c2410_nand_info *info,
-			       struct device *dev)
+			       struct platform_device *pdev)
 {
-	struct s3c2410_platform_nand *plat = to_nand_plat(dev);
+	struct s3c2410_platform_nand *plat = to_nand_plat(pdev);
 	unsigned long clkrate = clk_get_rate(info->clk);
 	int tacls, twrph0, twrph1;
 	unsigned long cfg;
@@ -430,11 +430,11 @@ static void s3c2410_nand_write_buf(struct mtd_info *mtd,
 
 /* device management functions */
 
-static int s3c2410_nand_remove(struct device *dev)
+static int s3c2410_nand_remove(struct platform_device *pdev)
 {
-	struct s3c2410_nand_info *info = to_nand_info(dev);
+	struct s3c2410_nand_info *info = to_nand_info(pdev);
 
-	dev_set_drvdata(dev, NULL);
+	platform_set_drvdata(pdev, NULL);
 
 	if (info == NULL)
 		return 0;
@@ -562,10 +562,9 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info,
  * nand layer to look for devices
 */
 
-static int s3c24xx_nand_probe(struct device *dev, int is_s3c2440)
+static int s3c24xx_nand_probe(struct platform_device *pdev, int is_s3c2440)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct s3c2410_platform_nand *plat = to_nand_plat(dev);
+	struct s3c2410_platform_nand *plat = to_nand_plat(pdev);
 	struct s3c2410_nand_info *info;
 	struct s3c2410_nand_mtd *nmtd;
 	struct s3c2410_nand_set *sets;
@@ -575,26 +574,26 @@ static int s3c24xx_nand_probe(struct device *dev, int is_s3c2440)
 	int nr_sets;
 	int setno;
 
-	pr_debug("s3c2410_nand_probe(%p)\n", dev);
+	pr_debug("s3c2410_nand_probe(%p)\n", pdev);
 
 	info = kmalloc(sizeof(*info), GFP_KERNEL);
 	if (info == NULL) {
-		dev_err(dev, "no memory for flash info\n");
+		dev_err(&pdev->dev, "no memory for flash info\n");
 		err = -ENOMEM;
 		goto exit_error;
 	}
 
 	memzero(info, sizeof(*info));
-	dev_set_drvdata(dev, info);
+	platform_set_drvdata(pdev, info);
 
 	spin_lock_init(&info->controller.lock);
 	init_waitqueue_head(&info->controller.wq);
 
 	/* get the clock source and enable it */
 
-	info->clk = clk_get(dev, "nand");
+	info->clk = clk_get(&pdev->dev, "nand");
 	if (IS_ERR(info->clk)) {
-		dev_err(dev, "failed to get clock");
+		dev_err(&pdev->dev, "failed to get clock");
 		err = -ENOENT;
 		goto exit_error;
 	}
@@ -611,27 +610,27 @@ static int s3c24xx_nand_probe(struct device *dev, int is_s3c2440)
 	info->area = request_mem_region(res->start, size, pdev->name);
 
 	if (info->area == NULL) {
-		dev_err(dev, "cannot reserve register region\n");
+		dev_err(&pdev->dev, "cannot reserve register region\n");
 		err = -ENOENT;
 		goto exit_error;
 	}
 
-	info->device     = dev;
+	info->device     = &pdev->dev;
 	info->platform   = plat;
 	info->regs       = ioremap(res->start, size);
 	info->is_s3c2440 = is_s3c2440;
 
 	if (info->regs == NULL) {
-		dev_err(dev, "cannot reserve register region\n");
+		dev_err(&pdev->dev, "cannot reserve register region\n");
 		err = -EIO;
 		goto exit_error;
 	}
 
-	dev_dbg(dev, "mapped registers at %p\n", info->regs);
+	dev_dbg(&pdev->dev, "mapped registers at %p\n", info->regs);
 
 	/* initialise the hardware */
 
-	err = s3c2410_nand_inithw(info, dev);
+	err = s3c2410_nand_inithw(info, pdev);
 	if (err != 0)
 		goto exit_error;
 
@@ -645,7 +644,7 @@ static int s3c24xx_nand_probe(struct device *dev, int is_s3c2440)
 	size = nr_sets * sizeof(*info->mtds);
 	info->mtds = kmalloc(size, GFP_KERNEL);
 	if (info->mtds == NULL) {
-		dev_err(dev, "failed to allocate mtd storage\n");
+		dev_err(&pdev->dev, "failed to allocate mtd storage\n");
 		err = -ENOMEM;
 		goto exit_error;
 	}
@@ -677,7 +676,7 @@ static int s3c24xx_nand_probe(struct device *dev, int is_s3c2440)
 	return 0;
 
  exit_error:
-	s3c2410_nand_remove(dev);
+	s3c2410_nand_remove(pdev);
 
 	if (err == 0)
 		err = -EINVAL;
@@ -686,44 +685,46 @@ static int s3c24xx_nand_probe(struct device *dev, int is_s3c2440)
 
 /* driver device registration */
 
-static int s3c2410_nand_probe(struct device *dev)
+static int s3c2410_nand_probe(struct platform_device *dev)
 {
 	return s3c24xx_nand_probe(dev, 0);
 }
 
-static int s3c2440_nand_probe(struct device *dev)
+static int s3c2440_nand_probe(struct platform_device *dev)
 {
 	return s3c24xx_nand_probe(dev, 1);
 }
 
-static struct device_driver s3c2410_nand_driver = {
-	.name		= "s3c2410-nand",
-	.owner		= THIS_MODULE,
-	.bus		= &platform_bus_type,
+static struct platform_driver s3c2410_nand_driver = {
 	.probe		= s3c2410_nand_probe,
 	.remove		= s3c2410_nand_remove,
+	.driver		= {
+		.name	= "s3c2410-nand",
+		.owner	= THIS_MODULE,
+	},
 };
 
-static struct device_driver s3c2440_nand_driver = {
-	.name		= "s3c2440-nand",
-	.owner		= THIS_MODULE,
-	.bus		= &platform_bus_type,
+static struct platform_driver s3c2440_nand_driver = {
 	.probe		= s3c2440_nand_probe,
 	.remove		= s3c2410_nand_remove,
+	.driver		= {
+		.name	= "s3c2440-nand",
+		.owner	= THIS_MODULE,
+	},
 };
 
 static int __init s3c2410_nand_init(void)
 {
 	printk("S3C24XX NAND Driver, (c) 2004 Simtec Electronics\n");
 
-	driver_register(&s3c2440_nand_driver);
-	return driver_register(&s3c2410_nand_driver);
+	platform_driver_register(&s3c2440_nand_driver);
+	return platform_driver_register(&s3c2410_nand_driver);
 }
 
 static void __exit s3c2410_nand_exit(void)
 {
-	driver_unregister(&s3c2440_nand_driver);
-	driver_unregister(&s3c2410_nand_driver);
+	platform_driver_unregister(&s3c2440_nand_driver);
+	platform_driver_unregister(&s3c2410_nand_driver);
 }
 
 module_init(s3c2410_nand_init);