107 	int (*ecc)(struct mtd_info *mtd, int section,
109 	int (*free)(struct mtd_info *mtd, int section,
183 	int (*get_info)(struct mtd_info *mtd, int wunit,
185 	int (*get_wunit)(struct mtd_info *mtd,
316 	int (*_erase) (struct mtd_info *mtd, struct erase_info *instr);
317 	int (*_point) (struct mtd_info *mtd, loff_t from, size_t len,
319 	int (*_unpoint) (struct mtd_info *mtd, loff_t from, size_t len);
320 	int (*_read) (struct mtd_info *mtd, loff_t from, size_t len,
322 	int (*_write) (struct mtd_info *mtd, loff_t to, size_t len,
324 	int (*_panic_write) (struct mtd_info *mtd, loff_t to, size_t len,
326 	int (*_read_oob) (struct mtd_info *mtd, loff_t from,
328 	int (*_write_oob) (struct mtd_info *mtd, loff_t to,
330 	int (*_get_fact_prot_info) (struct mtd_info *mtd, size_t len,
332 	int (*_read_fact_prot_reg) (struct mtd_info *mtd, loff_t from,
334 	int (*_get_user_prot_info) (struct mtd_info *mtd, size_t len,
336 	int (*_read_user_prot_reg) (struct mtd_info *mtd, loff_t from,
338 	int (*_write_user_prot_reg) (struct mtd_info *mtd, loff_t to,
341 	int (*_lock_user_prot_reg) (struct mtd_info *mtd, loff_t from,
343 	int (*_erase_user_prot_reg) (struct mtd_info *mtd, loff_t from,
345 	int (*_writev) (struct mtd_info *mtd, const struct kvec *vecs,
347 	void (*_sync) (struct mtd_info *mtd);
348 	int (*_lock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
349 	int (*_unlock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
350 	int (*_is_locked) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
351 	int (*_block_isreserved) (struct mtd_info *mtd, loff_t ofs);
352 	int (*_block_isbad) (struct mtd_info *mtd, loff_t ofs);
353 	int (*_block_markbad) (struct mtd_info *mtd, loff_t ofs);
354 	int (*_max_bad_blocks) (struct mtd_info *mtd, loff_t ofs, size_t len);
355 	int (*_suspend) (struct mtd_info *mtd);
356 	void (*_resume) (struct mtd_info *mtd);
357 	void (*_reboot) (struct mtd_info *mtd);
362 	int (*_get_device) (struct mtd_info *mtd);
363 	void (*_put_device) (struct mtd_info *mtd);
403 static inline struct mtd_info *mtd_get_master(struct mtd_info *mtd)  in mtd_get_master()  argument
405 	while (mtd->parent)  in mtd_get_master()
406 		mtd = mtd->parent;  in mtd_get_master()
408 	return mtd;  in mtd_get_master()
411 static inline u64 mtd_get_master_ofs(struct mtd_info *mtd, u64 ofs)  in mtd_get_master_ofs()  argument
413 	while (mtd->parent) {  in mtd_get_master_ofs()
414 		ofs += mtd->part.offset;  in mtd_get_master_ofs()
415 		mtd = mtd->parent;  in mtd_get_master_ofs()
421 static inline bool mtd_is_partition(const struct mtd_info *mtd)  in mtd_is_partition()  argument
423 	return mtd->parent;  in mtd_is_partition()
426 static inline bool mtd_has_partitions(const struct mtd_info *mtd)  in mtd_has_partitions()  argument
428 	return !list_empty(&mtd->partitions);  in mtd_has_partitions()
431 int mtd_ooblayout_ecc(struct mtd_info *mtd, int section,
433 int mtd_ooblayout_find_eccregion(struct mtd_info *mtd, int eccbyte,
436 int mtd_ooblayout_get_eccbytes(struct mtd_info *mtd, u8 *eccbuf,
438 int mtd_ooblayout_set_eccbytes(struct mtd_info *mtd, const u8 *eccbuf,
440 int mtd_ooblayout_free(struct mtd_info *mtd, int section,
442 int mtd_ooblayout_get_databytes(struct mtd_info *mtd, u8 *databuf,
444 int mtd_ooblayout_set_databytes(struct mtd_info *mtd, const u8 *databuf,
446 int mtd_ooblayout_count_freebytes(struct mtd_info *mtd);
447 int mtd_ooblayout_count_eccbytes(struct mtd_info *mtd);
449 static inline void mtd_set_ooblayout(struct mtd_info *mtd,  in mtd_set_ooblayout()  argument
452 	mtd->ooblayout = ooblayout;  in mtd_set_ooblayout()
455 static inline void mtd_set_pairing_scheme(struct mtd_info *mtd,  in mtd_set_pairing_scheme()  argument
458 	mtd->pairing = pairing;  in mtd_set_pairing_scheme()
461 static inline void mtd_set_of_node(struct mtd_info *mtd,  in mtd_set_of_node()  argument
464 	mtd->dev.of_node = np;  in mtd_set_of_node()
465 	if (!mtd->name)  in mtd_set_of_node()
466 		of_property_read_string(np, "label", &mtd->name);  in mtd_set_of_node()
469 static inline struct device_node *mtd_get_of_node(struct mtd_info *mtd)  in mtd_get_of_node()  argument
471 	return dev_of_node(&mtd->dev);  in mtd_get_of_node()
474 static inline u32 mtd_oobavail(struct mtd_info *mtd, struct mtd_oob_ops *ops)  in mtd_oobavail()  argument
476 	return ops->mode == MTD_OPS_AUTO_OOB ? mtd->oobavail : mtd->oobsize;  in mtd_oobavail()
479 static inline int mtd_max_bad_blocks(struct mtd_info *mtd,  in mtd_max_bad_blocks()  argument
482 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_max_bad_blocks()
487 	if (mtd->size < (len + ofs) || ofs < 0)  in mtd_max_bad_blocks()
490 	return master->_max_bad_blocks(master, mtd_get_master_ofs(mtd, ofs),  in mtd_max_bad_blocks()
494 int mtd_wunit_to_pairing_info(struct mtd_info *mtd, int wunit,
496 int mtd_pairing_info_to_wunit(struct mtd_info *mtd,
498 int mtd_pairing_groups(struct mtd_info *mtd);
499 int mtd_erase(struct mtd_info *mtd, struct erase_info *instr);
500 int mtd_point(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
502 int mtd_unpoint(struct mtd_info *mtd, loff_t from, size_t len);
503 unsigned long mtd_get_unmapped_area(struct mtd_info *mtd, unsigned long len,
505 int mtd_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
507 int mtd_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
509 int mtd_panic_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
512 int mtd_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops);
513 int mtd_write_oob(struct mtd_info *mtd, loff_t to, struct mtd_oob_ops *ops);
515 int mtd_get_fact_prot_info(struct mtd_info *mtd, size_t len, size_t *retlen,
517 int mtd_read_fact_prot_reg(struct mtd_info *mtd, loff_t from, size_t len,
519 int mtd_get_user_prot_info(struct mtd_info *mtd, size_t len, size_t *retlen,
521 int mtd_read_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len,
523 int mtd_write_user_prot_reg(struct mtd_info *mtd, loff_t to, size_t len,
525 int mtd_lock_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len);
526 int mtd_erase_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len);
528 int mtd_writev(struct mtd_info *mtd, const struct kvec *vecs,
531 static inline void mtd_sync(struct mtd_info *mtd)  in mtd_sync()  argument
533 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_sync()
539 int mtd_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
540 int mtd_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
541 int mtd_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len);
542 int mtd_block_isreserved(struct mtd_info *mtd, loff_t ofs);
543 int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs);
544 int mtd_block_markbad(struct mtd_info *mtd, loff_t ofs);
546 static inline int mtd_suspend(struct mtd_info *mtd)  in mtd_suspend()  argument
548 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_suspend()
562 static inline void mtd_resume(struct mtd_info *mtd)  in mtd_resume()  argument
564 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_resume()
575 static inline uint32_t mtd_div_by_eb(uint64_t sz, struct mtd_info *mtd)  in mtd_div_by_eb()  argument
577 	if (mtd->erasesize_shift)  in mtd_div_by_eb()
578 		return sz >> mtd->erasesize_shift;  in mtd_div_by_eb()
579 	do_div(sz, mtd->erasesize);  in mtd_div_by_eb()
583 static inline uint32_t mtd_mod_by_eb(uint64_t sz, struct mtd_info *mtd)  in mtd_mod_by_eb()  argument
585 	if (mtd->erasesize_shift)  in mtd_mod_by_eb()
586 		return sz & mtd->erasesize_mask;  in mtd_mod_by_eb()
587 	return do_div(sz, mtd->erasesize);  in mtd_mod_by_eb()
599 static inline void mtd_align_erase_req(struct mtd_info *mtd,  in mtd_align_erase_req()  argument
604 	if (WARN_ON(!mtd->erasesize))  in mtd_align_erase_req()
607 	mod = mtd_mod_by_eb(req->addr, mtd);  in mtd_align_erase_req()
613 	mod = mtd_mod_by_eb(req->addr + req->len, mtd);  in mtd_align_erase_req()
615 		req->len += mtd->erasesize - mod;  in mtd_align_erase_req()
618 static inline uint32_t mtd_div_by_ws(uint64_t sz, struct mtd_info *mtd)  in mtd_div_by_ws()  argument
620 	if (mtd->writesize_shift)  in mtd_div_by_ws()
621 		return sz >> mtd->writesize_shift;  in mtd_div_by_ws()
622 	do_div(sz, mtd->writesize);  in mtd_div_by_ws()
626 static inline uint32_t mtd_mod_by_ws(uint64_t sz, struct mtd_info *mtd)  in mtd_mod_by_ws()  argument
628 	if (mtd->writesize_shift)  in mtd_mod_by_ws()
629 		return sz & mtd->writesize_mask;  in mtd_mod_by_ws()
630 	return do_div(sz, mtd->writesize);  in mtd_mod_by_ws()
633 static inline int mtd_wunit_per_eb(struct mtd_info *mtd)  in mtd_wunit_per_eb()  argument
635 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_wunit_per_eb()
637 	return master->erasesize / mtd->writesize;  in mtd_wunit_per_eb()
640 static inline int mtd_offset_to_wunit(struct mtd_info *mtd, loff_t offs)  in mtd_offset_to_wunit()  argument
642 	return mtd_div_by_ws(mtd_mod_by_eb(offs, mtd), mtd);  in mtd_offset_to_wunit()
645 static inline loff_t mtd_wunit_to_offset(struct mtd_info *mtd, loff_t base,  in mtd_wunit_to_offset()  argument
648 	return base + (wunit * mtd->writesize);  in mtd_wunit_to_offset()
652 static inline int mtd_has_oob(const struct mtd_info *mtd)  in mtd_has_oob()  argument
654 	struct mtd_info *master = mtd_get_master((struct mtd_info *)mtd);  in mtd_has_oob()
659 static inline int mtd_type_is_nand(const struct mtd_info *mtd)  in mtd_type_is_nand()  argument
661 	return mtd->type == MTD_NANDFLASH || mtd->type == MTD_MLCNANDFLASH;  in mtd_type_is_nand()
664 static inline int mtd_can_have_bb(const struct mtd_info *mtd)  in mtd_can_have_bb()  argument
666 	struct mtd_info *master = mtd_get_master((struct mtd_info *)mtd);  in mtd_can_have_bb()
676 extern int mtd_device_parse_register(struct mtd_info *mtd,
684 extern struct mtd_info *get_mtd_device(struct mtd_info *mtd, int num);
685 extern int __get_mtd_device(struct mtd_info *mtd);
686 extern void __put_mtd_device(struct mtd_info *mtd);
689 extern void put_mtd_device(struct mtd_info *mtd);
693 	void (*add)(struct mtd_info *mtd);
694 	void (*remove)(struct mtd_info *mtd);
701 void *mtd_kmalloc_up_to(const struct mtd_info *mtd, size_t *size);
715 unsigned mtd_mmap_capabilities(struct mtd_info *mtd);