148 static struct i2c_client *at24_translate_offset(struct at24_data *at24,  in at24_translate_offset()  argument
153 	if (at24->chip.flags & AT24_FLAG_ADDR16) {  in at24_translate_offset()
161 	return at24->client[i];  in at24_translate_offset()
164 static ssize_t at24_eeprom_read(struct at24_data *at24, char *buf,  in at24_eeprom_read()  argument
191 	client = at24_translate_offset(at24, &offset);  in at24_eeprom_read()
196 	if (at24->use_smbus) {  in at24_eeprom_read()
209 		if (at24->chip.flags & AT24_FLAG_ADDR16)  in at24_eeprom_read()
231 		if (at24->use_smbus) {  in at24_eeprom_read()
252 static ssize_t at24_read(struct at24_data *at24,  in at24_read()  argument
264 	mutex_lock(&at24->lock);  in at24_read()
269 		status = at24_eeprom_read(at24, buf, off, count);  in at24_read()
281 	mutex_unlock(&at24->lock);  in at24_read()
290 	struct at24_data *at24;  in at24_bin_read()  local
292 	at24 = dev_get_drvdata(container_of(kobj, struct device, kobj));  in at24_bin_read()
293 	return at24_read(at24, buf, off, count);  in at24_bin_read()
305 static ssize_t at24_eeprom_write(struct at24_data *at24, const char *buf,  in at24_eeprom_write()  argument
315 	client = at24_translate_offset(at24, &offset);  in at24_eeprom_write()
318 	if (count > at24->write_max)  in at24_eeprom_write()
319 		count = at24->write_max;  in at24_eeprom_write()
322 	next_page = roundup(offset + 1, at24->chip.page_size);  in at24_eeprom_write()
327 	if (!at24->use_smbus) {  in at24_eeprom_write()
334 		msg.buf = at24->writebuf;  in at24_eeprom_write()
335 		if (at24->chip.flags & AT24_FLAG_ADDR16)  in at24_eeprom_write()
351 		if (at24->use_smbus_write) {  in at24_eeprom_write()
352 			switch (at24->use_smbus_write) {  in at24_eeprom_write()
383 static ssize_t at24_write(struct at24_data *at24, const char *buf, loff_t off,  in at24_write()  argument
395 	mutex_lock(&at24->lock);  in at24_write()
400 		status = at24_eeprom_write(at24, buf, off, count);  in at24_write()
412 	mutex_unlock(&at24->lock);  in at24_write()
421 	struct at24_data *at24;  in at24_bin_write()  local
423 	at24 = dev_get_drvdata(container_of(kobj, struct device, kobj));  in at24_bin_write()
424 	return at24_write(at24, buf, off, count);  in at24_bin_write()
438 	struct at24_data *at24 = container_of(macc, struct at24_data, macc);  in at24_macc_read()  local
440 	return at24_read(at24, buf, offset, count);  in at24_macc_read()
446 	struct at24_data *at24 = container_of(macc, struct at24_data, macc);  in at24_macc_write()  local
448 	return at24_write(at24, buf, offset, count);  in at24_macc_write()
481 	struct at24_data *at24;  in at24_probe()  local
565 	at24 = devm_kzalloc(&client->dev, sizeof(struct at24_data) +  in at24_probe()
567 	if (!at24)  in at24_probe()
570 	mutex_init(&at24->lock);  in at24_probe()
571 	at24->use_smbus = use_smbus;  in at24_probe()
572 	at24->use_smbus_write = use_smbus_write;  in at24_probe()
573 	at24->chip = chip;  in at24_probe()
574 	at24->num_addresses = num_addresses;  in at24_probe()
580 	sysfs_bin_attr_init(&at24->bin);  in at24_probe()
581 	at24->bin.attr.name = "eeprom";  in at24_probe()
582 	at24->bin.attr.mode = chip.flags & AT24_FLAG_IRUGO ? S_IRUGO : S_IRUSR;  in at24_probe()
583 	at24->bin.read = at24_bin_read;  in at24_probe()
584 	at24->bin.size = chip.byte_len;  in at24_probe()
586 	at24->macc.read = at24_macc_read;  in at24_probe()
594 			at24->macc.write = at24_macc_write;  in at24_probe()
596 			at24->bin.write = at24_bin_write;  in at24_probe()
597 			at24->bin.attr.mode |= S_IWUSR;  in at24_probe()
603 			at24->write_max = write_max;  in at24_probe()
606 			at24->writebuf = devm_kzalloc(&client->dev,  in at24_probe()
608 			if (!at24->writebuf)  in at24_probe()
616 	at24->client[0] = client;  in at24_probe()
620 		at24->client[i] = i2c_new_dummy(client->adapter,  in at24_probe()
622 		if (!at24->client[i]) {  in at24_probe()
630 	err = sysfs_create_bin_file(&client->dev.kobj, &at24->bin);  in at24_probe()
634 	i2c_set_clientdata(client, at24);  in at24_probe()
637 		at24->bin.size, client->name,  in at24_probe()
638 		writable ? "writable" : "read-only", at24->write_max);  in at24_probe()
648 		chip.setup(&at24->macc, chip.context);  in at24_probe()
654 		if (at24->client[i])  in at24_probe()
655 			i2c_unregister_device(at24->client[i]);  in at24_probe()
662 	struct at24_data *at24;  in at24_remove()  local
665 	at24 = i2c_get_clientdata(client);  in at24_remove()
666 	sysfs_remove_bin_file(&client->dev.kobj, &at24->bin);  in at24_remove()
668 	for (i = 1; i < at24->num_addresses; i++)  in at24_remove()
669 		i2c_unregister_device(at24->client[i]);  in at24_remove()