344 	struct nvmem_cell *cell = NULL;  in nvmem_cell_attr_read()  local
349 	cell = nvmem_create_cell(entry, entry->name, 0);  in nvmem_cell_attr_read()
350 	if (IS_ERR(cell))  in nvmem_cell_attr_read()
351 		return PTR_ERR(cell);  in nvmem_cell_attr_read()
353 	if (!cell)  in nvmem_cell_attr_read()
356 	content = nvmem_cell_read(cell, &cell_sz);  in nvmem_cell_attr_read()
367 	kfree_const(cell->id);  in nvmem_cell_attr_read()
368 	kfree(cell);  in nvmem_cell_attr_read()
551 static void nvmem_cell_entry_drop(struct nvmem_cell_entry *cell)  in nvmem_cell_entry_drop()  argument
553 	blocking_notifier_call_chain(&nvmem_notifier, NVMEM_CELL_REMOVE, cell);  in nvmem_cell_entry_drop()
555 	list_del(&cell->node);  in nvmem_cell_entry_drop()
557 	of_node_put(cell->np);  in nvmem_cell_entry_drop()
558 	kfree_const(cell->name);  in nvmem_cell_entry_drop()
559 	kfree(cell);  in nvmem_cell_entry_drop()
564 	struct nvmem_cell_entry *cell, *p;  in nvmem_device_remove_all_cells()  local
566 	list_for_each_entry_safe(cell, p, &nvmem->cells, node)  in nvmem_device_remove_all_cells()
567 		nvmem_cell_entry_drop(cell);  in nvmem_device_remove_all_cells()
570 static void nvmem_cell_entry_add(struct nvmem_cell_entry *cell)  in nvmem_cell_entry_add()  argument
573 	list_add_tail(&cell->node, &cell->nvmem->cells);  in nvmem_cell_entry_add()
575 	blocking_notifier_call_chain(&nvmem_notifier, NVMEM_CELL_ADD, cell);  in nvmem_cell_entry_add()
580 						     struct nvmem_cell_entry *cell)  in nvmem_cell_info_to_nvmem_cell_entry_nodup()  argument
582 	cell->nvmem = nvmem;  in nvmem_cell_info_to_nvmem_cell_entry_nodup()
583 	cell->offset = info->offset;  in nvmem_cell_info_to_nvmem_cell_entry_nodup()
584 	cell->raw_len = info->raw_len ?: info->bytes;  in nvmem_cell_info_to_nvmem_cell_entry_nodup()
585 	cell->bytes = info->bytes;  in nvmem_cell_info_to_nvmem_cell_entry_nodup()
586 	cell->name = info->name;  in nvmem_cell_info_to_nvmem_cell_entry_nodup()
587 	cell->read_post_process = info->read_post_process;  in nvmem_cell_info_to_nvmem_cell_entry_nodup()
588 	cell->priv = info->priv;  in nvmem_cell_info_to_nvmem_cell_entry_nodup()
590 	cell->bit_offset = info->bit_offset;  in nvmem_cell_info_to_nvmem_cell_entry_nodup()
591 	cell->nbits = info->nbits;  in nvmem_cell_info_to_nvmem_cell_entry_nodup()
592 	cell->np = info->np;  in nvmem_cell_info_to_nvmem_cell_entry_nodup()
594 	if (cell->nbits) {  in nvmem_cell_info_to_nvmem_cell_entry_nodup()
595 		cell->bytes = DIV_ROUND_UP(cell->nbits + cell->bit_offset,  in nvmem_cell_info_to_nvmem_cell_entry_nodup()
597 		cell->raw_len = ALIGN(cell->bytes, nvmem->word_size);  in nvmem_cell_info_to_nvmem_cell_entry_nodup()
600 	if (!IS_ALIGNED(cell->offset, nvmem->stride)) {  in nvmem_cell_info_to_nvmem_cell_entry_nodup()
603 			cell->name ?: "<unknown>", nvmem->stride);  in nvmem_cell_info_to_nvmem_cell_entry_nodup()
607 	if (!IS_ALIGNED(cell->raw_len, nvmem->word_size)) {  in nvmem_cell_info_to_nvmem_cell_entry_nodup()
610 			cell->name ?: "<unknown>", cell->raw_len,  in nvmem_cell_info_to_nvmem_cell_entry_nodup()
616 		cell->raw_len = ALIGN(cell->raw_len, nvmem->word_size);  in nvmem_cell_info_to_nvmem_cell_entry_nodup()
624 					       struct nvmem_cell_entry *cell)  in nvmem_cell_info_to_nvmem_cell_entry()  argument
628 	err = nvmem_cell_info_to_nvmem_cell_entry_nodup(nvmem, info, cell);  in nvmem_cell_info_to_nvmem_cell_entry()
632 	cell->name = kstrdup_const(info->name, GFP_KERNEL);  in nvmem_cell_info_to_nvmem_cell_entry()
633 	if (!cell->name)  in nvmem_cell_info_to_nvmem_cell_entry()
650 	struct nvmem_cell_entry *cell;  in nvmem_add_one_cell()  local
653 	cell = kzalloc(sizeof(*cell), GFP_KERNEL);  in nvmem_add_one_cell()
654 	if (!cell)  in nvmem_add_one_cell()
657 	rval = nvmem_cell_info_to_nvmem_cell_entry(nvmem, info, cell);  in nvmem_add_one_cell()
659 		kfree(cell);  in nvmem_add_one_cell()
663 	nvmem_cell_entry_add(cell);  in nvmem_add_one_cell()
722 	struct nvmem_cell_entry *iter, *cell = NULL;  in nvmem_find_cell_entry_by_name()  local
727 			cell = iter;  in nvmem_find_cell_entry_by_name()
733 	return cell;  in nvmem_find_cell_entry_by_name()
1298 	struct nvmem_cell *cell;  in nvmem_create_cell()  local
1301 	cell = kzalloc(sizeof(*cell), GFP_KERNEL);  in nvmem_create_cell()
1302 	if (!cell)  in nvmem_create_cell()
1308 			kfree(cell);  in nvmem_create_cell()
1313 	cell->id = name;  in nvmem_create_cell()
1314 	cell->entry = entry;  in nvmem_create_cell()
1315 	cell->index = index;  in nvmem_create_cell()
1317 	return cell;  in nvmem_create_cell()
1324 	struct nvmem_cell *cell = ERR_PTR(-ENOENT);  in nvmem_cell_get_from_lookup()  local
1344 				cell = ERR_CAST(nvmem);  in nvmem_cell_get_from_lookup()
1352 				cell = ERR_PTR(-ENOENT);  in nvmem_cell_get_from_lookup()
1354 				cell = nvmem_create_cell(cell_entry, con_id, 0);  in nvmem_cell_get_from_lookup()
1355 				if (IS_ERR(cell))  in nvmem_cell_get_from_lookup()
1363 	return cell;  in nvmem_cell_get_from_lookup()
1376 	struct nvmem_cell_entry *iter, *cell = NULL;  in nvmem_find_cell_entry_by_node()  local
1381 			cell = iter;  in nvmem_find_cell_entry_by_node()
1387 	return cell;  in nvmem_find_cell_entry_by_node()
1419 	struct nvmem_cell *cell;  in of_nvmem_cell_get()  local
1482 	cell = nvmem_create_cell(cell_entry, id, cell_index);  in of_nvmem_cell_get()
1483 	if (IS_ERR(cell)) {  in of_nvmem_cell_get()
1488 	return cell;  in of_nvmem_cell_get()
1507 	struct nvmem_cell *cell;  in nvmem_cell_get()  local
1510 		cell = of_nvmem_cell_get(dev->of_node, id);  in nvmem_cell_get()
1511 		if (!IS_ERR(cell) || PTR_ERR(cell) == -EPROBE_DEFER)  in nvmem_cell_get()
1512 			return cell;  in nvmem_cell_get()
1540 	struct nvmem_cell **ptr, *cell;  in devm_nvmem_cell_get()  local
1546 	cell = nvmem_cell_get(dev, id);  in devm_nvmem_cell_get()
1547 	if (!IS_ERR(cell)) {  in devm_nvmem_cell_get()
1548 		*ptr = cell;  in devm_nvmem_cell_get()
1554 	return cell;  in devm_nvmem_cell_get()
1575 void devm_nvmem_cell_put(struct device *dev, struct nvmem_cell *cell)  in devm_nvmem_cell_put()  argument
1580 				devm_nvmem_cell_match, cell);  in devm_nvmem_cell_put()
1591 void nvmem_cell_put(struct nvmem_cell *cell)  in nvmem_cell_put()  argument
1593 	struct nvmem_device *nvmem = cell->entry->nvmem;  in nvmem_cell_put()
1595 	if (cell->id)  in nvmem_cell_put()
1596 		kfree_const(cell->id);  in nvmem_cell_put()
1598 	kfree(cell);  in nvmem_cell_put()
1604 static void nvmem_shift_read_buffer_in_place(struct nvmem_cell_entry *cell, void *buf)  in nvmem_shift_read_buffer_in_place()  argument
1608 	int bit_offset = cell->bit_offset;  in nvmem_shift_read_buffer_in_place()
1621 		for (i = 1; i < cell->bytes; i++) {  in nvmem_shift_read_buffer_in_place()
1628 		memmove(p, b, cell->bytes - bytes_offset);  in nvmem_shift_read_buffer_in_place()
1629 		p += cell->bytes - 1;  in nvmem_shift_read_buffer_in_place()
1632 		p += cell->bytes - 1;  in nvmem_shift_read_buffer_in_place()
1636 	extra = cell->bytes - DIV_ROUND_UP(cell->nbits, BITS_PER_BYTE);  in nvmem_shift_read_buffer_in_place()
1641 	if (cell->nbits % BITS_PER_BYTE)  in nvmem_shift_read_buffer_in_place()
1642 		*p &= GENMASK((cell->nbits % BITS_PER_BYTE) - 1, 0);  in nvmem_shift_read_buffer_in_place()
1646 			     struct nvmem_cell_entry *cell,  in __nvmem_cell_read()  argument
1651 	rc = nvmem_reg_read(nvmem, cell->offset, buf, cell->raw_len);  in __nvmem_cell_read()
1657 	if (cell->bit_offset || cell->nbits)  in __nvmem_cell_read()
1658 		nvmem_shift_read_buffer_in_place(cell, buf);  in __nvmem_cell_read()
1660 	if (cell->read_post_process) {  in __nvmem_cell_read()
1661 		rc = cell->read_post_process(cell->priv, id, index,  in __nvmem_cell_read()
1662 					     cell->offset, buf, cell->raw_len);  in __nvmem_cell_read()
1668 		*len = cell->bytes;  in __nvmem_cell_read()
1683 void *nvmem_cell_read(struct nvmem_cell *cell, size_t *len)  in nvmem_cell_read()  argument
1685 	struct nvmem_cell_entry *entry = cell->entry;  in nvmem_cell_read()
1697 	rc = __nvmem_cell_read(nvmem, cell->entry, buf, len, cell->id, cell->index);  in nvmem_cell_read()
1707 static void *nvmem_cell_prepare_write_buffer(struct nvmem_cell_entry *cell,  in nvmem_cell_prepare_write_buffer()  argument
1710 	struct nvmem_device *nvmem = cell->nvmem;  in nvmem_cell_prepare_write_buffer()
1711 	int i, rc, nbits, bit_offset = cell->bit_offset;  in nvmem_cell_prepare_write_buffer()
1714 	nbits = cell->nbits;  in nvmem_cell_prepare_write_buffer()
1715 	buf = kzalloc(cell->bytes, GFP_KERNEL);  in nvmem_cell_prepare_write_buffer()
1727 		rc = nvmem_reg_read(nvmem, cell->offset, &v, 1);  in nvmem_cell_prepare_write_buffer()
1733 		for (i = 1; i < cell->bytes; i++) {  in nvmem_cell_prepare_write_buffer()
1747 				    cell->offset + cell->bytes - 1, &v, 1);  in nvmem_cell_prepare_write_buffer()
1760 static int __nvmem_cell_entry_write(struct nvmem_cell_entry *cell, void *buf, size_t len)  in __nvmem_cell_entry_write()  argument
1762 	struct nvmem_device *nvmem = cell->nvmem;  in __nvmem_cell_entry_write()
1766 	    (cell->bit_offset == 0 && len != cell->bytes))  in __nvmem_cell_entry_write()
1774 	if (cell->read_post_process)  in __nvmem_cell_entry_write()
1777 	if (cell->bit_offset || cell->nbits) {  in __nvmem_cell_entry_write()
1778 		if (len != BITS_TO_BYTES(cell->nbits) && len != cell->bytes)  in __nvmem_cell_entry_write()
1780 		buf = nvmem_cell_prepare_write_buffer(cell, buf, len);  in __nvmem_cell_entry_write()
1785 	rc = nvmem_reg_write(nvmem, cell->offset, buf, cell->bytes);  in __nvmem_cell_entry_write()
1788 	if (cell->bit_offset || cell->nbits)  in __nvmem_cell_entry_write()
1806 int nvmem_cell_write(struct nvmem_cell *cell, void *buf, size_t len)  in nvmem_cell_write()  argument
1808 	return __nvmem_cell_entry_write(cell->entry, buf, len);  in nvmem_cell_write()
1816 	struct nvmem_cell *cell;  in nvmem_cell_read_common()  local
1820 	cell = nvmem_cell_get(dev, cell_id);  in nvmem_cell_read_common()
1821 	if (IS_ERR(cell))  in nvmem_cell_read_common()
1822 		return PTR_ERR(cell);  in nvmem_cell_read_common()
1824 	buf = nvmem_cell_read(cell, &len);  in nvmem_cell_read_common()
1826 		nvmem_cell_put(cell);  in nvmem_cell_read_common()
1831 		nvmem_cell_put(cell);  in nvmem_cell_read_common()
1836 	nvmem_cell_put(cell);  in nvmem_cell_read_common()
1905 	struct nvmem_cell *cell;  in nvmem_cell_read_variable_common()  local
1909 	cell = nvmem_cell_get(dev, cell_id);  in nvmem_cell_read_variable_common()
1910 	if (IS_ERR(cell))  in nvmem_cell_read_variable_common()
1911 		return cell;  in nvmem_cell_read_variable_common()
1913 	nbits = cell->entry->nbits;  in nvmem_cell_read_variable_common()
1914 	buf = nvmem_cell_read(cell, len);  in nvmem_cell_read_variable_common()
1915 	nvmem_cell_put(cell);  in nvmem_cell_read_variable_common()
2009 	struct nvmem_cell_entry cell;  in nvmem_device_cell_read()  local
2016 	rc = nvmem_cell_info_to_nvmem_cell_entry_nodup(nvmem, info, &cell);  in nvmem_device_cell_read()
2020 	rc = __nvmem_cell_read(nvmem, &cell, buf, &len, NULL, 0);  in nvmem_device_cell_read()
2040 	struct nvmem_cell_entry cell;  in nvmem_device_cell_write()  local
2046 	rc = nvmem_cell_info_to_nvmem_cell_entry_nodup(nvmem, info, &cell);  in nvmem_device_cell_write()
2050 	return __nvmem_cell_entry_write(&cell, buf, cell.bytes);  in nvmem_device_cell_write()