diff options
Diffstat (limited to 'drivers/nor/cfi_flash.c')
| -rw-r--r-- | drivers/nor/cfi_flash.c | 37 |
1 files changed, 26 insertions, 11 deletions
diff --git a/drivers/nor/cfi_flash.c b/drivers/nor/cfi_flash.c index 16885c0af9..246a2a7bed 100644 --- a/drivers/nor/cfi_flash.c +++ b/drivers/nor/cfi_flash.c @@ -917,7 +917,6 @@ struct file_operations cfi_ops = { .memmap = generic_memmap_ro, }; -#ifdef CONFIG_PARTITION_NEED_MTD static int cfi_mtd_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf) { @@ -977,11 +976,11 @@ static void cfi_init_mtd(struct flash_info *info) mtd->flags = MTD_CAP_NORFLASH; info->cdev.mtd = mtd; } -#endif static int cfi_probe (struct device_d *dev) { struct flash_info *info = xzalloc(sizeof(*info)); + int cfinum; dev->priv = (void *)info; @@ -1000,30 +999,46 @@ static int cfi_probe (struct device_d *dev) dev_info(dev, "found cfi flash at %p, size %ld\n", info->base, info->size); - info->cdev.name = asprintf("nor%d", dev->id); + if (dev->id < 0) + cfinum = cdev_find_free_index("nor"); + else + cfinum = dev->id; + + info->cdev.name = asprintf("nor%d", cfinum); info->cdev.size = info->size; info->cdev.dev = dev; info->cdev.ops = &cfi_ops; info->cdev.priv = info; -#ifdef CONFIG_PARTITION_NEED_MTD - cfi_init_mtd(info); -#endif + if (IS_ENABLED(CONFIG_PARTITION_NEED_MTD)) + cfi_init_mtd(info); + devfs_create(&info->cdev); + if (dev->device_node) + of_parse_partitions(info->cdev.name, dev->device_node); + return 0; } +static __maybe_unused struct of_device_id cfi_dt_ids[] = { + { + .compatible = "cfi-flash", + }, { + /* sentinel */ + } +}; + static struct driver_d cfi_driver = { - .name = "cfi_flash", - .probe = cfi_probe, - .info = cfi_info, + .name = "cfi_flash", + .probe = cfi_probe, + .info = cfi_info, + .of_compatible = DRV_OF_COMPAT(cfi_dt_ids), }; static int cfi_init(void) { - return register_driver(&cfi_driver); + return register_driver(&cfi_driver); } device_initcall(cfi_init); - |