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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2016-03-14 12:44:22 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2016-04-08 13:34:45 +0200 |
| commit | 05be9036220af61ee8d93f0197a05251e840c852 (patch) | |
| tree | 017af240462e712b35e9b050a40f7f29b64eb32c | |
| parent | 4d28946ac019472186a7139754f35832198e64d2 (diff) | |
| download | barebox-05be9036220af61ee8d93f0197a05251e840c852.tar.gz barebox-05be9036220af61ee8d93f0197a05251e840c852.tar.xz | |
mtd: ubi: Add function to get ubi number from mtd device
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | drivers/mtd/ubi/barebox.c | 20 | ||||
| -rw-r--r-- | include/mtd/ubi-user.h | 1 |
2 files changed, 21 insertions, 0 deletions
diff --git a/drivers/mtd/ubi/barebox.c b/drivers/mtd/ubi/barebox.c index f81705e932..c26a2455b2 100644 --- a/drivers/mtd/ubi/barebox.c +++ b/drivers/mtd/ubi/barebox.c @@ -297,3 +297,23 @@ int ubi_detach(int ubi_num) return ubi_detach_mtd_dev(ubi_num, 1); } + +/** + * ubi_num_get_by_mtd - find the ubi number to the given mtd + * @mtd: the mtd device + * + * @return: positive or zero for a UBI number, negative error code otherwise + */ +int ubi_num_get_by_mtd(struct mtd_info *mtd) +{ + int i; + struct ubi_device *ubi; + + for (i = 0; i < UBI_MAX_DEVICES; i++) { + ubi = ubi_devices[i]; + if (ubi && mtd == ubi->mtd) + return ubi->ubi_num; + } + + return -ENOENT; +} diff --git a/include/mtd/ubi-user.h b/include/mtd/ubi-user.h index 2002548526..8c02f96e4c 100644 --- a/include/mtd/ubi-user.h +++ b/include/mtd/ubi-user.h @@ -407,5 +407,6 @@ struct ubi_set_vol_prop_req { int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset, int max_beb_per1024); int ubi_detach(int ubi_num); +int ubi_num_get_by_mtd(struct mtd_info *mtd); #endif /* __UBI_USER_H__ */ |