diff options
Diffstat (limited to 'drivers/mtd/maps/sa1100-flash.c')
| -rw-r--r-- | drivers/mtd/maps/sa1100-flash.c | 66 |
1 files changed, 47 insertions, 19 deletions
diff --git a/drivers/mtd/maps/sa1100-flash.c b/drivers/mtd/maps/sa1100-flash.c index 66b4c2780adc..c8d0da19d897 100644 --- a/drivers/mtd/maps/sa1100-flash.c +++ b/drivers/mtd/maps/sa1100-flash.c @@ -130,20 +130,21 @@ struct sa_subdev_info { char name[16]; struct map_info map; struct mtd_info *mtd; - struct flash_platform_data *data; + struct flash_platform_data *plat; }; struct sa_info { struct mtd_partition *parts; struct mtd_info *mtd; int num_subdev; + unsigned int nr_parts; struct sa_subdev_info subdev[0]; }; static void sa1100_set_vpp(struct map_info *map, int on) { struct sa_subdev_info *subdev = container_of(map, struct sa_subdev_info, map); - subdev->data->set_vpp(on); + subdev->plat->set_vpp(on); } static void sa1100_destroy_subdev(struct sa_subdev_info *subdev) @@ -187,7 +188,7 @@ static int sa1100_probe_subdev(struct sa_subdev_info *subdev, struct resource *r goto out; } - if (subdev->data->set_vpp) + if (subdev->plat->set_vpp) subdev->map.set_vpp = sa1100_set_vpp; subdev->map.phys = phys; @@ -204,7 +205,7 @@ static int sa1100_probe_subdev(struct sa_subdev_info *subdev, struct resource *r * Now let's probe for the actual flash. Do it here since * specific machine settings might have been set above. */ - subdev->mtd = do_map_probe(subdev->data->map_name, &subdev->map); + subdev->mtd = do_map_probe(subdev->plat->map_name, &subdev->map); if (subdev->mtd == NULL) { ret = -ENXIO; goto err; @@ -223,13 +224,17 @@ static int sa1100_probe_subdev(struct sa_subdev_info *subdev, struct resource *r return ret; } -static void sa1100_destroy(struct sa_info *info) +static void sa1100_destroy(struct sa_info *info, struct flash_platform_data *plat) { int i; if (info->mtd) { - del_mtd_partitions(info->mtd); - + if (info->nr_parts == 0) + del_mtd_device(info->mtd); +#ifdef CONFIG_MTD_PARTITIONS + else + del_mtd_partitions(info->mtd); +#endif #ifdef CONFIG_MTD_CONCAT if (info->mtd != info->subdev[0].mtd) mtd_concat_destroy(info->mtd); @@ -242,10 +247,13 @@ static void sa1100_destroy(struct sa_info *info) for (i = info->num_subdev - 1; i >= 0; i--) sa1100_destroy_subdev(&info->subdev[i]); kfree(info); + + if (plat->exit) + plat->exit(); } static struct sa_info *__init -sa1100_setup_mtd(struct platform_device *pdev, struct flash_platform_data *flash) +sa1100_setup_mtd(struct platform_device *pdev, struct flash_platform_data *plat) { struct sa_info *info; int nr, size, i, ret = 0; @@ -275,6 +283,12 @@ sa1100_setup_mtd(struct platform_device *pdev, struct flash_platform_data *flash memset(info, 0, size); + if (plat->init) { + ret = plat->init(); + if (ret) + goto err; + } + /* * Claim and then map the memory regions. */ @@ -287,8 +301,8 @@ sa1100_setup_mtd(struct platform_device *pdev, struct flash_platform_data *flash break; subdev->map.name = subdev->name; - sprintf(subdev->name, "sa1100-%d", i); - subdev->data = flash; + sprintf(subdev->name, "%s-%d", plat->name, i); + subdev->plat = plat; ret = sa1100_probe_subdev(subdev, res); if (ret) @@ -309,7 +323,7 @@ sa1100_setup_mtd(struct platform_device *pdev, struct flash_platform_data *flash * otherwise fail. Either way, it'll be called "sa1100". */ if (info->num_subdev == 1) { - strcpy(info->subdev[0].name, "sa1100"); + strcpy(info->subdev[0].name, plat->name); info->mtd = info->subdev[0].mtd; ret = 0; } else if (info->num_subdev > 1) { @@ -322,7 +336,7 @@ sa1100_setup_mtd(struct platform_device *pdev, struct flash_platform_data *flash cdev[i] = info->subdev[i].mtd; info->mtd = mtd_concat_create(cdev, info->num_subdev, - "sa1100"); + plat->name); if (info->mtd == NULL) ret = -ENXIO; #else @@ -336,7 +350,7 @@ sa1100_setup_mtd(struct platform_device *pdev, struct flash_platform_data *flash return info; err: - sa1100_destroy(info); + sa1100_destroy(info, plat); out: return ERR_PTR(ret); } @@ -346,16 +360,16 @@ static const char *part_probes[] = { "cmdlinepart", "RedBoot", NULL }; static int __init sa1100_mtd_probe(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); - struct flash_platform_data *flash = pdev->dev.platform_data; + struct flash_platform_data *plat = pdev->dev.platform_data; struct mtd_partition *parts; const char *part_type = NULL; struct sa_info *info; int err, nr_parts = 0; - if (!flash) + if (!plat) return -ENODEV; - info = sa1100_setup_mtd(pdev, flash); + info = sa1100_setup_mtd(pdev, plat); if (IS_ERR(info)) { err = PTR_ERR(info); goto out; @@ -372,8 +386,8 @@ static int __init sa1100_mtd_probe(struct device *dev) } else #endif { - parts = flash->parts; - nr_parts = flash->nr_parts; + parts = plat->parts; + nr_parts = plat->nr_parts; part_type = "static"; } @@ -387,6 +401,8 @@ static int __init sa1100_mtd_probe(struct device *dev) add_mtd_partitions(info->mtd, parts, nr_parts); } + info->nr_parts = nr_parts; + dev_set_drvdata(dev, info); err = 0; @@ -397,8 +413,11 @@ static int __init sa1100_mtd_probe(struct device *dev) static int __exit sa1100_mtd_remove(struct device *dev) { struct sa_info *info = dev_get_drvdata(dev); + struct flash_platform_data *plat = dev->platform_data; + dev_set_drvdata(dev, NULL); - sa1100_destroy(info); + sa1100_destroy(info, plat); + return 0; } @@ -421,9 +440,17 @@ static int sa1100_mtd_resume(struct device *dev) info->mtd->resume(info->mtd); return 0; } + +static void sa1100_mtd_shutdown(struct device *dev) +{ + struct sa_info *info = dev_get_drvdata(dev); + if (info && info->mtd->suspend(info->mtd) == 0) + info->mtd->resume(info->mtd); +} #else #define sa1100_mtd_suspend NULL #define sa1100_mtd_resume NULL +#define sa1100_mtd_shutdown NULL #endif static struct device_driver sa1100_mtd_driver = { @@ -433,6 +460,7 @@ static struct device_driver sa1100_mtd_driver = { .remove = __exit_p(sa1100_mtd_remove), .suspend = sa1100_mtd_suspend, .resume = sa1100_mtd_resume, + .shutdown = sa1100_mtd_shutdown, }; static int __init sa1100_mtd_init(void) |