[MTD] [MAPS] fix platform driver hotplug/coldplug

[linux-2.6-omap-h63xx.git] / drivers / mtd / maps / bast-flash.c

diff --git a/drivers/mtd/maps/bast-flash.c b/drivers/mtd/maps/bast-flash.c
index bfe994e59265d57772da814b0b08eab199e2e793..1f492062f8ca7fb18f62f7fbf35ee3ce54a6e758 100644 (file)
--- a/drivers/mtd/maps/bast-flash.c
+++ b/drivers/mtd/maps/bast-flash.c
@@ -1,4 +1,4 @@
-/* linux/drivers/mtd/maps/bast_flash.c
+/* linux/drivers/mtd/maps/bast-flash.c
  *
  * Copyright (c) 2004-2005 Simtec Electronics
  *     Ben Dooks <ben@simtec.co.uk>
@@ -9,7 +9,7 @@
  *     20-Sep-2004  BJD  Initial version
  *     17-Jan-2005  BJD  Add whole device if no partitions found
  *
- * $Id: bast-flash.c,v 1.2 2005/01/18 11:13:47 bjd Exp $
+ * $Id: bast-flash.c,v 1.5 2005/11/07 11:14:26 gleixner Exp $
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -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;
@@ -75,7 +70,7 @@ static void bast_flash_setrw(int to)
 
        local_irq_save(flags);
        val = __raw_readb(BAST_VA_CTRL3);
-       
+
        if (to)
                val |= BAST_CPLD_CTRL3_ROMWEN;
        else
@@ -87,13 +82,13 @@ 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) 
+       if (info == NULL)
                return 0;
 
        if (info->map.virt != NULL)
@@ -104,22 +99,20 @@ static int bast_flash_remove(struct device *dev)
                map_destroy(info->mtd);
        }
 
-       if (info->partitions)
-               kfree(info->partitions);
+       kfree(info->partitions);
 
        if (info->area) {
                release_resource(info->area);
                kfree(info->area);
        }
-       
+
        kfree(info);
 
        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;
@@ -132,21 +125,21 @@ 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)
                info->map.size = AREA_MAXSIZE;
 
-       pr_debug("%s: area %08lx, size %ld\n", __FUNCTION__,
+       pr_debug("%s: area %08lx, size %ld\n", __func__,
                 info->map.phys, info->map.size);
-       
+
        info->area = request_mem_region(res->start, info->map.size,
                                        pdev->name);
        if (info->area == NULL) {
@@ -156,14 +149,14 @@ static int bast_flash_probe(struct device *dev)
        }
 
        info->map.virt = ioremap(res->start, info->map.size);
-       pr_debug("%s: virt at %08x\n", __FUNCTION__, (int)info->map.virt);
+       pr_debug("%s: virt at %08x\n", __func__, (int)info->map.virt);
 
        if (info->map.virt == 0) {
                printk(KERN_ERR PFX "failed to ioremap() region\n");
                err = -EIO;
                goto exit_error;
        }
- 
+
        simple_map_init(&info->map);
 
        /* enable the write to the flash area */
@@ -188,7 +181,7 @@ static int bast_flash_probe(struct device *dev)
        err = parse_mtd_partitions(info->mtd, probes, &info->partitions, 0);
        if (err > 0) {
                err = add_mtd_partitions(info->mtd, info->partitions, err);
-               if (err) 
+               if (err)
                        printk(KERN_ERR PFX "cannot add/parse partitions\n");
        } else {
                err = add_mtd_device(info->mtd);
@@ -200,26 +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",
-       .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);
@@ -228,3 +223,4 @@ module_exit(bast_flash_exit);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
 MODULE_DESCRIPTION("BAST MTD Map driver");
+MODULE_ALIAS("platform:bast-nor");