454 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_wunit_to_pairing_info()  local
455 	int npairs = mtd_wunit_per_eb(master) / mtd_pairing_groups(master);  in mtd_wunit_to_pairing_info()
460 	if (master->pairing && master->pairing->get_info)  in mtd_wunit_to_pairing_info()
461 		return master->pairing->get_info(master, wunit, info);  in mtd_wunit_to_pairing_info()
497 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_pairing_info_to_wunit()  local
498 	int ngroups = mtd_pairing_groups(master);  in mtd_pairing_info_to_wunit()
499 	int npairs = mtd_wunit_per_eb(master) / ngroups;  in mtd_pairing_info_to_wunit()
505 	if (master->pairing && master->pairing->get_wunit)  in mtd_pairing_info_to_wunit()
506 		return mtd->pairing->get_wunit(master, info);  in mtd_pairing_info_to_wunit()
524 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_pairing_groups()  local
526 	if (!master->pairing || !master->pairing->ngroups)  in mtd_pairing_groups()
529 	return master->pairing->ngroups;  in mtd_pairing_groups()
646 	struct mtd_info *master = mtd_get_master(mtd);  in add_mtd_device()  local
652 	 * mtd_device_parse_register() multiple times on the same master MTD,  in add_mtd_device()
668 	if (WARN_ON((!mtd->erasesize || !master->_erase) &&  in add_mtd_device()
674 	 * master is an MLC NAND and has a proper pairing scheme defined.  in add_mtd_device()
681 	    (!mtd_is_partition(mtd) || master->type != MTD_MLCNANDFLASH ||  in add_mtd_device()
682 	     !master->pairing || master->_writev))  in add_mtd_device()
707 		int ngroups = mtd_pairing_groups(master);  in add_mtd_device()
710 		mtd->size = (u64)mtd_div_by_eb(mtd->size, master) *  in add_mtd_device()
850 	mutex_init(&mtd->master.partitions_lock);  in mtd_set_dev_defaults()
851 	mutex_init(&mtd->master.chrdev_lock);  in mtd_set_dev_defaults()
1113  * @master: the MTD device to unregister.  This will unregister both the master
1116 int mtd_device_unregister(struct mtd_info *master)  in mtd_device_unregister()  argument
1120 	if (master->_reboot) {  in mtd_device_unregister()
1121 		unregister_reboot_notifier(&master->reboot_notifier);  in mtd_device_unregister()
1122 		memset(&master->reboot_notifier, 0, sizeof(master->reboot_notifier));  in mtd_device_unregister()
1125 	nvmem_unregister(master->otp_user_nvmem);  in mtd_device_unregister()
1126 	nvmem_unregister(master->otp_factory_nvmem);  in mtd_device_unregister()
1128 	err = del_mtd_partitions(master);  in mtd_device_unregister()
1132 	if (!device_is_registered(&master->dev))  in mtd_device_unregister()
1135 	return del_mtd_device(master);  in mtd_device_unregister()
1238 	struct mtd_info *master = mtd_get_master(mtd);  in __get_mtd_device()  local
1241 	if (master->_get_device) {  in __get_mtd_device()
1242 		err = master->_get_device(mtd);  in __get_mtd_device()
1247 	if (!try_module_get(master->owner)) {  in __get_mtd_device()
1248 		if (master->_put_device)  in __get_mtd_device()
1249 			master->_put_device(master);  in __get_mtd_device()
1254 		if (mtd != master)  in __get_mtd_device()
1260 		kref_get(&master->refcnt);  in __get_mtd_device()
1343 	struct mtd_info *master = mtd_get_master(mtd);  in __put_mtd_device()  local
1349 		if (mtd != master)  in __put_mtd_device()
1355 		kref_put(&master->refcnt, mtd_device_release);  in __put_mtd_device()
1357 	module_put(master->owner);  in __put_mtd_device()
1359 	/* must be the last as master can be freed in the _put_device */  in __put_mtd_device()
1360 	if (master->_put_device)  in __put_mtd_device()
1361 		master->_put_device(master);  in __put_mtd_device()
1372 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_erase()  local
1380 	if (!mtd->erasesize || !master->_erase)  in mtd_erase()
1395 				master->erasesize;  in mtd_erase()
1397 				master->erasesize) -  in mtd_erase()
1403 	ret = master->_erase(master, &adjinstr);  in mtd_erase()
1409 							 master);  in mtd_erase()
1425 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_point()  local
1431 	if (!master->_point)  in mtd_point()
1439 	return master->_point(master, from, len, retlen, virt, phys);  in mtd_point()
1446 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_unpoint()  local
1448 	if (!master->_unpoint)  in mtd_unpoint()
1454 	return master->_unpoint(master, mtd_get_master_ofs(mtd, from), len);  in mtd_unpoint()
1481 static void mtd_update_ecc_stats(struct mtd_info *mtd, struct mtd_info *master,  in mtd_update_ecc_stats()  argument
1486 	if (master == mtd)  in mtd_update_ecc_stats()
1489 	diff = master->ecc_stats;  in mtd_update_ecc_stats()
1546 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_panic_write()  local
1549 	if (!master->_panic_write)  in mtd_panic_write()
1557 	if (!master->oops_panic_write)  in mtd_panic_write()
1558 		master->oops_panic_write = true;  in mtd_panic_write()
1560 	return master->_panic_write(master, mtd_get_master_ofs(mtd, to), len,  in mtd_panic_write()
1601 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_read_oob_std()  local
1605 	if (master->_read_oob)  in mtd_read_oob_std()
1606 		ret = master->_read_oob(master, from, ops);  in mtd_read_oob_std()
1608 		ret = master->_read(master, from, ops->len, &ops->retlen,  in mtd_read_oob_std()
1617 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_write_oob_std()  local
1621 	if (master->_write_oob)  in mtd_write_oob_std()
1622 		ret = master->_write_oob(master, to, ops);  in mtd_write_oob_std()
1624 		ret = master->_write(master, to, ops->len, &ops->retlen,  in mtd_write_oob_std()
1633 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_io_emulated_slc()  local
1634 	int ngroups = mtd_pairing_groups(master);  in mtd_io_emulated_slc()
1635 	int npairs = mtd_wunit_per_eb(master) / ngroups;  in mtd_io_emulated_slc()
1644 	base = (loff_t)mtd_div_by_eb(start, mtd) * master->erasesize;  in mtd_io_emulated_slc()
1655 			base += master->erasesize;  in mtd_io_emulated_slc()
1658 		wunit = mtd_pairing_info_to_wunit(master, &info);  in mtd_io_emulated_slc()
1695 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_read_oob()  local
1696 	struct mtd_ecc_stats old_stats = master->ecc_stats;  in mtd_read_oob()
1708 	if (!master->_read_oob && (!master->_read || ops->oobbuf))  in mtd_read_oob()
1719 	mtd_update_ecc_stats(mtd, master, &old_stats);  in mtd_read_oob()
1740 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_write_oob()  local
1755 	if (!master->_write_oob && (!master->_write || ops->oobbuf))  in mtd_write_oob()
1784 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_ooblayout_ecc()  local
1788 	if (!master || section < 0)  in mtd_ooblayout_ecc()
1791 	if (!master->ooblayout || !master->ooblayout->ecc)  in mtd_ooblayout_ecc()
1794 	return master->ooblayout->ecc(master, section, oobecc);  in mtd_ooblayout_ecc()
1818 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_ooblayout_free()  local
1822 	if (!master || section < 0)  in mtd_ooblayout_free()
1825 	if (!master->ooblayout || !master->ooblayout->free)  in mtd_ooblayout_free()
1828 	return master->ooblayout->free(master, section, oobfree);  in mtd_ooblayout_free()
2137 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_get_fact_prot_info()  local
2139 	if (!master->_get_fact_prot_info)  in mtd_get_fact_prot_info()
2143 	return master->_get_fact_prot_info(master, len, retlen, buf);  in mtd_get_fact_prot_info()
2150 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_read_fact_prot_reg()  local
2153 	if (!master->_read_fact_prot_reg)  in mtd_read_fact_prot_reg()
2157 	return master->_read_fact_prot_reg(master, from, len, retlen, buf);  in mtd_read_fact_prot_reg()
2164 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_get_user_prot_info()  local
2166 	if (!master->_get_user_prot_info)  in mtd_get_user_prot_info()
2170 	return master->_get_user_prot_info(master, len, retlen, buf);  in mtd_get_user_prot_info()
2177 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_read_user_prot_reg()  local
2180 	if (!master->_read_user_prot_reg)  in mtd_read_user_prot_reg()
2184 	return master->_read_user_prot_reg(master, from, len, retlen, buf);  in mtd_read_user_prot_reg()
2191 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_write_user_prot_reg()  local
2195 	if (!master->_write_user_prot_reg)  in mtd_write_user_prot_reg()
2199 	ret = master->_write_user_prot_reg(master, to, len, retlen, buf);  in mtd_write_user_prot_reg()
2213 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_lock_user_prot_reg()  local
2215 	if (!master->_lock_user_prot_reg)  in mtd_lock_user_prot_reg()
2219 	return master->_lock_user_prot_reg(master, from, len);  in mtd_lock_user_prot_reg()
2225 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_erase_user_prot_reg()  local
2227 	if (!master->_erase_user_prot_reg)  in mtd_erase_user_prot_reg()
2231 	return master->_erase_user_prot_reg(master, from, len);  in mtd_erase_user_prot_reg()
2238 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_lock()  local
2240 	if (!master->_lock)  in mtd_lock()
2248 		ofs = (loff_t)mtd_div_by_eb(ofs, mtd) * master->erasesize;  in mtd_lock()
2249 		len = (u64)mtd_div_by_eb(len, mtd) * master->erasesize;  in mtd_lock()
2252 	return master->_lock(master, mtd_get_master_ofs(mtd, ofs), len);  in mtd_lock()
2258 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_unlock()  local
2260 	if (!master->_unlock)  in mtd_unlock()
2268 		ofs = (loff_t)mtd_div_by_eb(ofs, mtd) * master->erasesize;  in mtd_unlock()
2269 		len = (u64)mtd_div_by_eb(len, mtd) * master->erasesize;  in mtd_unlock()
2272 	return master->_unlock(master, mtd_get_master_ofs(mtd, ofs), len);  in mtd_unlock()
2278 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_is_locked()  local
2280 	if (!master->_is_locked)  in mtd_is_locked()
2288 		ofs = (loff_t)mtd_div_by_eb(ofs, mtd) * master->erasesize;  in mtd_is_locked()
2289 		len = (u64)mtd_div_by_eb(len, mtd) * master->erasesize;  in mtd_is_locked()
2292 	return master->_is_locked(master, mtd_get_master_ofs(mtd, ofs), len);  in mtd_is_locked()
2298 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_block_isreserved()  local
2302 	if (!master->_block_isreserved)  in mtd_block_isreserved()
2306 		ofs = (loff_t)mtd_div_by_eb(ofs, mtd) * master->erasesize;  in mtd_block_isreserved()
2308 	return master->_block_isreserved(master, mtd_get_master_ofs(mtd, ofs));  in mtd_block_isreserved()
2314 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_block_isbad()  local
2318 	if (!master->_block_isbad)  in mtd_block_isbad()
2322 		ofs = (loff_t)mtd_div_by_eb(ofs, mtd) * master->erasesize;  in mtd_block_isbad()
2324 	return master->_block_isbad(master, mtd_get_master_ofs(mtd, ofs));  in mtd_block_isbad()
2330 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_block_markbad()  local
2333 	if (!master->_block_markbad)  in mtd_block_markbad()
2341 		ofs = (loff_t)mtd_div_by_eb(ofs, mtd) * master->erasesize;  in mtd_block_markbad()
2343 	ret = master->_block_markbad(master, mtd_get_master_ofs(mtd, ofs));  in mtd_block_markbad()
2403 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_writev()  local
2409 	if (!master->_writev)  in mtd_writev()
2412 	return master->_writev(master, vecs, count,  in mtd_writev()