35 	struct mtd_info mtd;  member
45 static inline struct mtd_part *mtd_to_part(const struct mtd_info *mtd)  in mtd_to_part()  argument
47 	return container_of(mtd, struct mtd_part, mtd);  in mtd_to_part()
50 static u64 part_absolute_offset(struct mtd_info *mtd)  in part_absolute_offset()  argument
52 	struct mtd_part *part = mtd_to_part(mtd);  in part_absolute_offset()
54 	if (!mtd_is_partition(mtd))  in part_absolute_offset()
65 static int part_read(struct mtd_info *mtd, loff_t from, size_t len,  in part_read()  argument
68 	struct mtd_part *part = mtd_to_part(mtd);  in part_read()
76 		mtd->ecc_stats.failed +=  in part_read()
79 		mtd->ecc_stats.corrected +=  in part_read()
84 static int part_point(struct mtd_info *mtd, loff_t from, size_t len,  in part_point()  argument
87 	struct mtd_part *part = mtd_to_part(mtd);  in part_point()
93 static int part_unpoint(struct mtd_info *mtd, loff_t from, size_t len)  in part_unpoint()  argument
95 	struct mtd_part *part = mtd_to_part(mtd);  in part_unpoint()
100 static int part_read_oob(struct mtd_info *mtd, loff_t from,  in part_read_oob()  argument
103 	struct mtd_part *part = mtd_to_part(mtd);  in part_read_oob()
110 		mtd->ecc_stats.failed +=  in part_read_oob()
113 		mtd->ecc_stats.corrected +=  in part_read_oob()
118 static int part_read_user_prot_reg(struct mtd_info *mtd, loff_t from,  in part_read_user_prot_reg()  argument
121 	struct mtd_part *part = mtd_to_part(mtd);  in part_read_user_prot_reg()
126 static int part_get_user_prot_info(struct mtd_info *mtd, size_t len,  in part_get_user_prot_info()  argument
129 	struct mtd_part *part = mtd_to_part(mtd);  in part_get_user_prot_info()
134 static int part_read_fact_prot_reg(struct mtd_info *mtd, loff_t from,  in part_read_fact_prot_reg()  argument
137 	struct mtd_part *part = mtd_to_part(mtd);  in part_read_fact_prot_reg()
142 static int part_get_fact_prot_info(struct mtd_info *mtd, size_t len,  in part_get_fact_prot_info()  argument
145 	struct mtd_part *part = mtd_to_part(mtd);  in part_get_fact_prot_info()
150 static int part_write(struct mtd_info *mtd, loff_t to, size_t len,  in part_write()  argument
153 	struct mtd_part *part = mtd_to_part(mtd);  in part_write()
158 static int part_panic_write(struct mtd_info *mtd, loff_t to, size_t len,  in part_panic_write()  argument
161 	struct mtd_part *part = mtd_to_part(mtd);  in part_panic_write()
166 static int part_write_oob(struct mtd_info *mtd, loff_t to,  in part_write_oob()  argument
169 	struct mtd_part *part = mtd_to_part(mtd);  in part_write_oob()
174 static int part_write_user_prot_reg(struct mtd_info *mtd, loff_t from,  in part_write_user_prot_reg()  argument
177 	struct mtd_part *part = mtd_to_part(mtd);  in part_write_user_prot_reg()
182 static int part_lock_user_prot_reg(struct mtd_info *mtd, loff_t from,  in part_lock_user_prot_reg()  argument
185 	struct mtd_part *part = mtd_to_part(mtd);  in part_lock_user_prot_reg()
189 static int part_writev(struct mtd_info *mtd, const struct kvec *vecs,  in part_writev()  argument
192 	struct mtd_part *part = mtd_to_part(mtd);  in part_writev()
197 static int part_erase(struct mtd_info *mtd, struct erase_info *instr)  in part_erase()  argument
199 	struct mtd_part *part = mtd_to_part(mtd);  in part_erase()
211 static int part_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)  in part_lock()  argument
213 	struct mtd_part *part = mtd_to_part(mtd);  in part_lock()
217 static int part_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)  in part_unlock()  argument
219 	struct mtd_part *part = mtd_to_part(mtd);  in part_unlock()
223 static int part_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)  in part_is_locked()  argument
225 	struct mtd_part *part = mtd_to_part(mtd);  in part_is_locked()
229 static void part_sync(struct mtd_info *mtd)  in part_sync()  argument
231 	struct mtd_part *part = mtd_to_part(mtd);  in part_sync()
235 static int part_suspend(struct mtd_info *mtd)  in part_suspend()  argument
237 	struct mtd_part *part = mtd_to_part(mtd);  in part_suspend()
241 static void part_resume(struct mtd_info *mtd)  in part_resume()  argument
243 	struct mtd_part *part = mtd_to_part(mtd);  in part_resume()
247 static int part_block_isreserved(struct mtd_info *mtd, loff_t ofs)  in part_block_isreserved()  argument
249 	struct mtd_part *part = mtd_to_part(mtd);  in part_block_isreserved()
254 static int part_block_isbad(struct mtd_info *mtd, loff_t ofs)  in part_block_isbad()  argument
256 	struct mtd_part *part = mtd_to_part(mtd);  in part_block_isbad()
261 static int part_block_markbad(struct mtd_info *mtd, loff_t ofs)  in part_block_markbad()  argument
263 	struct mtd_part *part = mtd_to_part(mtd);  in part_block_markbad()
269 		mtd->ecc_stats.badblocks++;  in part_block_markbad()
273 static int part_get_device(struct mtd_info *mtd)  in part_get_device()  argument
275 	struct mtd_part *part = mtd_to_part(mtd);  in part_get_device()
279 static void part_put_device(struct mtd_info *mtd)  in part_put_device()  argument
281 	struct mtd_part *part = mtd_to_part(mtd);  in part_put_device()
285 static int part_ooblayout_ecc(struct mtd_info *mtd, int section,  in part_ooblayout_ecc()  argument
288 	struct mtd_part *part = mtd_to_part(mtd);  in part_ooblayout_ecc()
293 static int part_ooblayout_free(struct mtd_info *mtd, int section,  in part_ooblayout_free()  argument
296 	struct mtd_part *part = mtd_to_part(mtd);  in part_ooblayout_free()
306 static int part_max_bad_blocks(struct mtd_info *mtd, loff_t ofs, size_t len)  in part_max_bad_blocks()  argument
308 	struct mtd_part *part = mtd_to_part(mtd);  in part_max_bad_blocks()
316 	kfree(p->mtd.name);  in free_partition()
343 	slave->mtd.type = parent->type;  in allocate_partition()
344 	slave->mtd.flags = parent->orig_flags & ~part->mask_flags;  in allocate_partition()
345 	slave->mtd.orig_flags = slave->mtd.flags;  in allocate_partition()
346 	slave->mtd.size = part->size;  in allocate_partition()
347 	slave->mtd.writesize = parent->writesize;  in allocate_partition()
348 	slave->mtd.writebufsize = parent->writebufsize;  in allocate_partition()
349 	slave->mtd.oobsize = parent->oobsize;  in allocate_partition()
350 	slave->mtd.oobavail = parent->oobavail;  in allocate_partition()
351 	slave->mtd.subpage_sft = parent->subpage_sft;  in allocate_partition()
352 	slave->mtd.pairing = parent->pairing;  in allocate_partition()
354 	slave->mtd.name = name;  in allocate_partition()
355 	slave->mtd.owner = parent->owner;  in allocate_partition()
365 	slave->mtd.dev.parent = IS_ENABLED(CONFIG_MTD_PARTITIONED_MASTER) || mtd_is_partition(parent) ?  in allocate_partition()
368 	slave->mtd.dev.of_node = part->of_node;  in allocate_partition()
371 		slave->mtd._read = part_read;  in allocate_partition()
373 		slave->mtd._write = part_write;  in allocate_partition()
376 		slave->mtd._panic_write = part_panic_write;  in allocate_partition()
379 		slave->mtd._point = part_point;  in allocate_partition()
380 		slave->mtd._unpoint = part_unpoint;  in allocate_partition()
384 		slave->mtd._read_oob = part_read_oob;  in allocate_partition()
386 		slave->mtd._write_oob = part_write_oob;  in allocate_partition()
388 		slave->mtd._read_user_prot_reg = part_read_user_prot_reg;  in allocate_partition()
390 		slave->mtd._read_fact_prot_reg = part_read_fact_prot_reg;  in allocate_partition()
392 		slave->mtd._write_user_prot_reg = part_write_user_prot_reg;  in allocate_partition()
394 		slave->mtd._lock_user_prot_reg = part_lock_user_prot_reg;  in allocate_partition()
396 		slave->mtd._get_user_prot_info = part_get_user_prot_info;  in allocate_partition()
398 		slave->mtd._get_fact_prot_info = part_get_fact_prot_info;  in allocate_partition()
400 		slave->mtd._sync = part_sync;  in allocate_partition()
403 		slave->mtd._suspend = part_suspend;  in allocate_partition()
404 		slave->mtd._resume = part_resume;  in allocate_partition()
407 		slave->mtd._writev = part_writev;  in allocate_partition()
409 		slave->mtd._lock = part_lock;  in allocate_partition()
411 		slave->mtd._unlock = part_unlock;  in allocate_partition()
413 		slave->mtd._is_locked = part_is_locked;  in allocate_partition()
415 		slave->mtd._block_isreserved = part_block_isreserved;  in allocate_partition()
417 		slave->mtd._block_isbad = part_block_isbad;  in allocate_partition()
419 		slave->mtd._block_markbad = part_block_markbad;  in allocate_partition()
421 		slave->mtd._max_bad_blocks = part_max_bad_blocks;  in allocate_partition()
424 		slave->mtd._get_device = part_get_device;  in allocate_partition()
426 		slave->mtd._put_device = part_put_device;  in allocate_partition()
428 	slave->mtd._erase = part_erase;  in allocate_partition()
447 		if (parent->size - slave->offset >= slave->mtd.size) {  in allocate_partition()
448 			slave->mtd.size = parent->size - slave->offset  in allocate_partition()
449 							- slave->mtd.size;  in allocate_partition()
453 				slave->mtd.size);  in allocate_partition()
458 	if (slave->mtd.size == MTDPART_SIZ_FULL)  in allocate_partition()
459 		slave->mtd.size = parent->size - slave->offset;  in allocate_partition()
462 		(unsigned long long)(slave->offset + slave->mtd.size), slave->mtd.name);  in allocate_partition()
468 		slave->mtd.size = 0;  in allocate_partition()
471 		slave->mtd.erasesize = parent->erasesize;  in allocate_partition()
477 	if (slave->offset + slave->mtd.size > parent->size) {  in allocate_partition()
478 		slave->mtd.size = parent->size - slave->offset;  in allocate_partition()
480 			part->name, parent->name, (unsigned long long)slave->mtd.size);  in allocate_partition()
485 		u64 end = slave->offset + slave->mtd.size;  in allocate_partition()
498 			if (slave->mtd.erasesize < regions[i].erasesize) {  in allocate_partition()
499 				slave->mtd.erasesize = regions[i].erasesize;  in allocate_partition()
502 		BUG_ON(slave->mtd.erasesize == 0);  in allocate_partition()
505 		slave->mtd.erasesize = parent->erasesize;  in allocate_partition()
513 	if (!(slave->mtd.flags & MTD_NO_ERASE))  in allocate_partition()
514 		wr_alignment = slave->mtd.erasesize;  in allocate_partition()
518 	if ((slave->mtd.flags & MTD_WRITEABLE) && remainder) {  in allocate_partition()
522 		slave->mtd.flags &= ~MTD_WRITEABLE;  in allocate_partition()
527 	tmp = part_absolute_offset(parent) + slave->mtd.size;  in allocate_partition()
529 	if ((slave->mtd.flags & MTD_WRITEABLE) && remainder) {  in allocate_partition()
530 		slave->mtd.flags &= ~MTD_WRITEABLE;  in allocate_partition()
535 	mtd_set_ooblayout(&slave->mtd, &part_ooblayout_ops);  in allocate_partition()
536 	slave->mtd.ecc_step_size = parent->ecc_step_size;  in allocate_partition()
537 	slave->mtd.ecc_strength = parent->ecc_strength;  in allocate_partition()
538 	slave->mtd.bitflip_threshold = parent->bitflip_threshold;  in allocate_partition()
543 		while (offs < slave->mtd.size) {  in allocate_partition()
545 				slave->mtd.ecc_stats.bbtblocks++;  in allocate_partition()
547 				slave->mtd.ecc_stats.badblocks++;  in allocate_partition()
548 			offs += slave->mtd.erasesize;  in allocate_partition()
559 	struct mtd_info *mtd = dev_get_drvdata(dev);  in mtd_partition_offset_show()  local
560 	struct mtd_part *part = mtd_to_part(mtd);  in mtd_partition_offset_show()
573 	int ret = sysfs_create_files(&new->mtd.dev.kobj, mtd_partition_attrs);  in mtd_add_partition_attrs()
611 	ret = add_mtd_device(&new->mtd);  in mtd_add_partition()
643 		if (child->parent == &priv->mtd) {  in __mtd_del_partition()
650 	sysfs_remove_files(&priv->mtd.dev.kobj, mtd_partition_attrs);  in __mtd_del_partition()
652 	err = del_mtd_device(&priv->mtd);  in __mtd_del_partition()
666 int del_mtd_partitions(struct mtd_info *mtd)  in del_mtd_partitions()  argument
673 		if (slave->parent == mtd) {  in del_mtd_partitions()
683 int mtd_del_partition(struct mtd_info *mtd, int partno)  in mtd_del_partition()  argument
690 		if ((slave->parent == mtd) &&  in mtd_del_partition()
691 		    (slave->mtd.index == partno)) {  in mtd_del_partition()
731 		ret = add_mtd_device(&slave->mtd);  in add_mtd_partitions()
743 		parse_mtd_partitions(&slave->mtd, parts[i].types, NULL);  in add_mtd_partitions()
745 		cur_offset = slave->offset + slave->mtd.size;  in add_mtd_partitions()
1026 int mtd_is_partition(const struct mtd_info *mtd)  in mtd_is_partition()  argument
1033 		if (&part->mtd == mtd) {  in mtd_is_partition()
1044 uint64_t mtd_get_device_size(const struct mtd_info *mtd)  in mtd_get_device_size()  argument
1046 	if (!mtd_is_partition(mtd))  in mtd_get_device_size()
1047 		return mtd->size;  in mtd_get_device_size()
1049 	return mtd_get_device_size(mtd_to_part(mtd)->parent);  in mtd_get_device_size()