diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mtd/mtd.h | 32 | ||||
| -rw-r--r-- | include/linux/mtd/partitions.h | 1 |
2 files changed, 32 insertions, 1 deletions
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index af6f4a61f8..68e5915324 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -20,6 +20,7 @@ #include <linux/compat.h> #include <mtd/mtd-abi.h> #include <linux/errno.h> +#include <linux/list.h> #include <div64.h> #if IS_ENABLED(CONFIG_DM) #include <dm/device.h> @@ -307,6 +308,27 @@ struct mtd_info { struct udevice *dev; #endif int usecount; + + /* MTD devices do not have any parent. MTD partitions do. */ + struct mtd_info *parent; + + /* + * Offset of the partition relatively to the parent offset. + * Is 0 for real MTD devices (ie. not partitions). + */ + u64 offset; + + /* + * List node used to add an MTD partition to the parent + * partition list. + */ + struct list_head node; + + /* + * List of partitions attached to this MTD device (the parent + * MTD device can itself be a partition). + */ + struct list_head partitions; }; #if IS_ENABLED(CONFIG_DM) @@ -334,6 +356,16 @@ static inline const struct device_node *mtd_get_of_node(struct mtd_info *mtd) } #endif +static inline bool mtd_is_partition(const struct mtd_info *mtd) +{ + return mtd->parent; +} + +static inline bool mtd_has_partitions(const struct mtd_info *mtd) +{ + return !list_empty(&mtd->partitions); +} + int mtd_ooblayout_ecc(struct mtd_info *mtd, int section, struct mtd_oob_region *oobecc); int mtd_ooblayout_find_eccregion(struct mtd_info *mtd, int eccbyte, diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h index 6eea0a547a..3822237f2a 100644 --- a/include/linux/mtd/partitions.h +++ b/include/linux/mtd/partitions.h @@ -81,7 +81,6 @@ extern void register_mtd_parser(struct mtd_part_parser *parser); extern void deregister_mtd_parser(struct mtd_part_parser *parser); #endif -int mtd_is_partition(const struct mtd_info *mtd); int mtd_add_partition(struct mtd_info *master, const char *name, long long offset, long long length); int mtd_del_partition(struct mtd_info *master, int partno); |