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()
1118  * @master: the MTD device to unregister.  This will unregister both the master
1121 int mtd_device_unregister(struct mtd_info *master)  in mtd_device_unregister()  argument
1125 	if (master->_reboot) {  in mtd_device_unregister()
1126 		unregister_reboot_notifier(&master->reboot_notifier);  in mtd_device_unregister()
1127 		memset(&master->reboot_notifier, 0, sizeof(master->reboot_notifier));  in mtd_device_unregister()
1130 	nvmem_unregister(master->otp_user_nvmem);  in mtd_device_unregister()
1131 	nvmem_unregister(master->otp_factory_nvmem);  in mtd_device_unregister()
1133 	err = del_mtd_partitions(master);  in mtd_device_unregister()
1137 	if (!device_is_registered(&master->dev))  in mtd_device_unregister()
1140 	return del_mtd_device(master);  in mtd_device_unregister()
1243 	struct mtd_info *master = mtd_get_master(mtd);  in __get_mtd_device()  local
1246 	if (master->_get_device) {  in __get_mtd_device()
1247 		err = master->_get_device(mtd);  in __get_mtd_device()
1252 	if (!try_module_get(master->owner)) {  in __get_mtd_device()
1253 		if (master->_put_device)  in __get_mtd_device()
1254 			master->_put_device(master);  in __get_mtd_device()
1259 		if (mtd != master)  in __get_mtd_device()
1265 		kref_get(&master->refcnt);  in __get_mtd_device()
1348 	struct mtd_info *master = mtd_get_master(mtd);  in __put_mtd_device()  local
1354 		if (mtd != master)  in __put_mtd_device()
1360 		kref_put(&master->refcnt, mtd_device_release);  in __put_mtd_device()
1362 	module_put(master->owner);  in __put_mtd_device()
1364 	/* must be the last as master can be freed in the _put_device */  in __put_mtd_device()
1365 	if (master->_put_device)  in __put_mtd_device()
1366 		master->_put_device(master);  in __put_mtd_device()
1377 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_erase()  local
1385 	if (!mtd->erasesize || !master->_erase)  in mtd_erase()
1400 				master->erasesize;  in mtd_erase()
1402 				master->erasesize) -  in mtd_erase()
1408 	ret = master->_erase(master, &adjinstr);  in mtd_erase()
1414 							 master);  in mtd_erase()
1430 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_point()  local
1436 	if (!master->_point)  in mtd_point()
1444 	return master->_point(master, from, len, retlen, virt, phys);  in mtd_point()
1451 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_unpoint()  local
1453 	if (!master->_unpoint)  in mtd_unpoint()
1459 	return master->_unpoint(master, mtd_get_master_ofs(mtd, from), len);  in mtd_unpoint()
1486 static void mtd_update_ecc_stats(struct mtd_info *mtd, struct mtd_info *master,  in mtd_update_ecc_stats()  argument
1491 	if (master == mtd)  in mtd_update_ecc_stats()
1494 	diff = master->ecc_stats;  in mtd_update_ecc_stats()
1551 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_panic_write()  local
1554 	if (!master->_panic_write)  in mtd_panic_write()
1562 	if (!master->oops_panic_write)  in mtd_panic_write()
1563 		master->oops_panic_write = true;  in mtd_panic_write()
1565 	return master->_panic_write(master, mtd_get_master_ofs(mtd, to), len,  in mtd_panic_write()
1606 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_read_oob_std()  local
1610 	if (master->_read_oob)  in mtd_read_oob_std()
1611 		ret = master->_read_oob(master, from, ops);  in mtd_read_oob_std()
1613 		ret = master->_read(master, from, ops->len, &ops->retlen,  in mtd_read_oob_std()
1622 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_write_oob_std()  local
1626 	if (master->_write_oob)  in mtd_write_oob_std()
1627 		ret = master->_write_oob(master, to, ops);  in mtd_write_oob_std()
1629 		ret = master->_write(master, to, ops->len, &ops->retlen,  in mtd_write_oob_std()
1638 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_io_emulated_slc()  local
1639 	int ngroups = mtd_pairing_groups(master);  in mtd_io_emulated_slc()
1640 	int npairs = mtd_wunit_per_eb(master) / ngroups;  in mtd_io_emulated_slc()
1649 	base = (loff_t)mtd_div_by_eb(start, mtd) * master->erasesize;  in mtd_io_emulated_slc()
1660 			base += master->erasesize;  in mtd_io_emulated_slc()
1663 		wunit = mtd_pairing_info_to_wunit(master, &info);  in mtd_io_emulated_slc()
1700 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_read_oob()  local
1701 	struct mtd_ecc_stats old_stats = master->ecc_stats;  in mtd_read_oob()
1713 	if (!master->_read_oob && (!master->_read || ops->oobbuf))  in mtd_read_oob()
1724 	mtd_update_ecc_stats(mtd, master, &old_stats);  in mtd_read_oob()
1745 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_write_oob()  local
1760 	if (!master->_write_oob && (!master->_write || ops->oobbuf))  in mtd_write_oob()
1789 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_ooblayout_ecc()  local
1793 	if (!master || section < 0)  in mtd_ooblayout_ecc()
1796 	if (!master->ooblayout || !master->ooblayout->ecc)  in mtd_ooblayout_ecc()
1799 	return master->ooblayout->ecc(master, section, oobecc);  in mtd_ooblayout_ecc()
1823 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_ooblayout_free()  local
1827 	if (!master || section < 0)  in mtd_ooblayout_free()
1830 	if (!master->ooblayout || !master->ooblayout->free)  in mtd_ooblayout_free()
1833 	return master->ooblayout->free(master, section, oobfree);  in mtd_ooblayout_free()
2142 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_get_fact_prot_info()  local
2144 	if (!master->_get_fact_prot_info)  in mtd_get_fact_prot_info()
2148 	return master->_get_fact_prot_info(master, len, retlen, buf);  in mtd_get_fact_prot_info()
2155 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_read_fact_prot_reg()  local
2158 	if (!master->_read_fact_prot_reg)  in mtd_read_fact_prot_reg()
2162 	return master->_read_fact_prot_reg(master, from, len, retlen, buf);  in mtd_read_fact_prot_reg()
2169 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_get_user_prot_info()  local
2171 	if (!master->_get_user_prot_info)  in mtd_get_user_prot_info()
2175 	return master->_get_user_prot_info(master, len, retlen, buf);  in mtd_get_user_prot_info()
2182 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_read_user_prot_reg()  local
2185 	if (!master->_read_user_prot_reg)  in mtd_read_user_prot_reg()
2189 	return master->_read_user_prot_reg(master, from, len, retlen, buf);  in mtd_read_user_prot_reg()
2196 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_write_user_prot_reg()  local
2200 	if (!master->_write_user_prot_reg)  in mtd_write_user_prot_reg()
2204 	ret = master->_write_user_prot_reg(master, to, len, retlen, buf);  in mtd_write_user_prot_reg()
2218 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_lock_user_prot_reg()  local
2220 	if (!master->_lock_user_prot_reg)  in mtd_lock_user_prot_reg()
2224 	return master->_lock_user_prot_reg(master, from, len);  in mtd_lock_user_prot_reg()
2230 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_erase_user_prot_reg()  local
2232 	if (!master->_erase_user_prot_reg)  in mtd_erase_user_prot_reg()
2236 	return master->_erase_user_prot_reg(master, from, len);  in mtd_erase_user_prot_reg()
2243 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_lock()  local
2245 	if (!master->_lock)  in mtd_lock()
2253 		ofs = (loff_t)mtd_div_by_eb(ofs, mtd) * master->erasesize;  in mtd_lock()
2254 		len = (u64)mtd_div_by_eb(len, mtd) * master->erasesize;  in mtd_lock()
2257 	return master->_lock(master, mtd_get_master_ofs(mtd, ofs), len);  in mtd_lock()
2263 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_unlock()  local
2265 	if (!master->_unlock)  in mtd_unlock()
2273 		ofs = (loff_t)mtd_div_by_eb(ofs, mtd) * master->erasesize;  in mtd_unlock()
2274 		len = (u64)mtd_div_by_eb(len, mtd) * master->erasesize;  in mtd_unlock()
2277 	return master->_unlock(master, mtd_get_master_ofs(mtd, ofs), len);  in mtd_unlock()
2283 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_is_locked()  local
2285 	if (!master->_is_locked)  in mtd_is_locked()
2293 		ofs = (loff_t)mtd_div_by_eb(ofs, mtd) * master->erasesize;  in mtd_is_locked()
2294 		len = (u64)mtd_div_by_eb(len, mtd) * master->erasesize;  in mtd_is_locked()
2297 	return master->_is_locked(master, mtd_get_master_ofs(mtd, ofs), len);  in mtd_is_locked()
2303 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_block_isreserved()  local
2307 	if (!master->_block_isreserved)  in mtd_block_isreserved()
2311 		ofs = (loff_t)mtd_div_by_eb(ofs, mtd) * master->erasesize;  in mtd_block_isreserved()
2313 	return master->_block_isreserved(master, mtd_get_master_ofs(mtd, ofs));  in mtd_block_isreserved()
2319 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_block_isbad()  local
2323 	if (!master->_block_isbad)  in mtd_block_isbad()
2327 		ofs = (loff_t)mtd_div_by_eb(ofs, mtd) * master->erasesize;  in mtd_block_isbad()
2329 	return master->_block_isbad(master, mtd_get_master_ofs(mtd, ofs));  in mtd_block_isbad()
2335 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_block_markbad()  local
2338 	if (!master->_block_markbad)  in mtd_block_markbad()
2346 		ofs = (loff_t)mtd_div_by_eb(ofs, mtd) * master->erasesize;  in mtd_block_markbad()
2348 	ret = master->_block_markbad(master, mtd_get_master_ofs(mtd, ofs));  in mtd_block_markbad()
2408 	struct mtd_info *master = mtd_get_master(mtd);  in mtd_writev()  local
2414 	if (!master->_writev)  in mtd_writev()
2417 	return master->_writev(master, vecs, count,  in mtd_writev()