41 	struct eeprom_93xx46_dev *edev;  in eeprom_93xx46_bin_read()  local
49 	edev = dev_get_drvdata(dev);  in eeprom_93xx46_bin_read()
51 	cmd_addr = OP_READ << edev->addrlen;  in eeprom_93xx46_bin_read()
53 	if (edev->addrlen == 7) {  in eeprom_93xx46_bin_read()
61 	dev_dbg(&edev->spi->dev, "read cmd 0x%x, %d Hz\n",  in eeprom_93xx46_bin_read()
62 		cmd_addr, edev->spi->max_speed_hz);  in eeprom_93xx46_bin_read()
77 	mutex_lock(&edev->lock);  in eeprom_93xx46_bin_read()
79 	if (edev->pdata->prepare)  in eeprom_93xx46_bin_read()
80 		edev->pdata->prepare(edev);  in eeprom_93xx46_bin_read()
82 	ret = spi_sync(edev->spi, &m);  in eeprom_93xx46_bin_read()
86 		dev_err(&edev->spi->dev, "read %zu bytes at %d: err. %d\n",  in eeprom_93xx46_bin_read()
90 	if (edev->pdata->finish)  in eeprom_93xx46_bin_read()
91 		edev->pdata->finish(edev);  in eeprom_93xx46_bin_read()
93 	mutex_unlock(&edev->lock);  in eeprom_93xx46_bin_read()
97 static int eeprom_93xx46_ew(struct eeprom_93xx46_dev *edev, int is_on)  in eeprom_93xx46_ew()  argument
104 	cmd_addr = OP_START << edev->addrlen;  in eeprom_93xx46_ew()
105 	if (edev->addrlen == 7) {  in eeprom_93xx46_ew()
113 	dev_dbg(&edev->spi->dev, "ew cmd 0x%04x\n", cmd_addr);  in eeprom_93xx46_ew()
123 	mutex_lock(&edev->lock);  in eeprom_93xx46_ew()
125 	if (edev->pdata->prepare)  in eeprom_93xx46_ew()
126 		edev->pdata->prepare(edev);  in eeprom_93xx46_ew()
128 	ret = spi_sync(edev->spi, &m);  in eeprom_93xx46_ew()
132 		dev_err(&edev->spi->dev, "erase/write %sable error %d\n",  in eeprom_93xx46_ew()
135 	if (edev->pdata->finish)  in eeprom_93xx46_ew()
136 		edev->pdata->finish(edev);  in eeprom_93xx46_ew()
138 	mutex_unlock(&edev->lock);  in eeprom_93xx46_ew()
143 eeprom_93xx46_write_word(struct eeprom_93xx46_dev *edev,  in eeprom_93xx46_write_word()  argument
151 	cmd_addr = OP_WRITE << edev->addrlen;  in eeprom_93xx46_write_word()
153 	if (edev->addrlen == 7) {  in eeprom_93xx46_write_word()
163 	dev_dbg(&edev->spi->dev, "write cmd 0x%x\n", cmd_addr);  in eeprom_93xx46_write_word()
178 	ret = spi_sync(edev->spi, &m);  in eeprom_93xx46_write_word()
189 	struct eeprom_93xx46_dev *edev;  in eeprom_93xx46_bin_write()  local
194 	edev = dev_get_drvdata(dev);  in eeprom_93xx46_bin_write()
197 	if (edev->addrlen == 6) {  in eeprom_93xx46_bin_write()
203 	ret = eeprom_93xx46_ew(edev, 1);  in eeprom_93xx46_bin_write()
207 	mutex_lock(&edev->lock);  in eeprom_93xx46_bin_write()
209 	if (edev->pdata->prepare)  in eeprom_93xx46_bin_write()
210 		edev->pdata->prepare(edev);  in eeprom_93xx46_bin_write()
213 		ret = eeprom_93xx46_write_word(edev, &buf[i], off + i);  in eeprom_93xx46_bin_write()
215 			dev_err(&edev->spi->dev, "write failed at %d: %d\n",  in eeprom_93xx46_bin_write()
221 	if (edev->pdata->finish)  in eeprom_93xx46_bin_write()
222 		edev->pdata->finish(edev);  in eeprom_93xx46_bin_write()
224 	mutex_unlock(&edev->lock);  in eeprom_93xx46_bin_write()
227 	eeprom_93xx46_ew(edev, 0);  in eeprom_93xx46_bin_write()
231 static int eeprom_93xx46_eral(struct eeprom_93xx46_dev *edev)  in eeprom_93xx46_eral()  argument
233 	struct eeprom_93xx46_platform_data *pd = edev->pdata;  in eeprom_93xx46_eral()
239 	cmd_addr = OP_START << edev->addrlen;  in eeprom_93xx46_eral()
240 	if (edev->addrlen == 7) {  in eeprom_93xx46_eral()
256 	mutex_lock(&edev->lock);  in eeprom_93xx46_eral()
258 	if (edev->pdata->prepare)  in eeprom_93xx46_eral()
259 		edev->pdata->prepare(edev);  in eeprom_93xx46_eral()
261 	ret = spi_sync(edev->spi, &m);  in eeprom_93xx46_eral()
263 		dev_err(&edev->spi->dev, "erase error %d\n", ret);  in eeprom_93xx46_eral()
268 		pd->finish(edev);  in eeprom_93xx46_eral()
270 	mutex_unlock(&edev->lock);  in eeprom_93xx46_eral()
278 	struct eeprom_93xx46_dev *edev = dev_get_drvdata(dev);  in eeprom_93xx46_store_erase()  local
283 		ret = eeprom_93xx46_ew(edev, 1);  in eeprom_93xx46_store_erase()
286 		ret = eeprom_93xx46_eral(edev);  in eeprom_93xx46_store_erase()
289 		ret = eeprom_93xx46_ew(edev, 0);  in eeprom_93xx46_store_erase()
300 	struct eeprom_93xx46_dev *edev;  in eeprom_93xx46_probe()  local
309 	edev = kzalloc(sizeof(*edev), GFP_KERNEL);  in eeprom_93xx46_probe()
310 	if (!edev)  in eeprom_93xx46_probe()
314 		edev->addrlen = 7;  in eeprom_93xx46_probe()
316 		edev->addrlen = 6;  in eeprom_93xx46_probe()
323 	mutex_init(&edev->lock);  in eeprom_93xx46_probe()
325 	edev->spi = spi_dev_get(spi);  in eeprom_93xx46_probe()
326 	edev->pdata = pd;  in eeprom_93xx46_probe()
328 	sysfs_bin_attr_init(&edev->bin);  in eeprom_93xx46_probe()
329 	edev->bin.attr.name = "eeprom";  in eeprom_93xx46_probe()
330 	edev->bin.attr.mode = S_IRUSR;  in eeprom_93xx46_probe()
331 	edev->bin.read = eeprom_93xx46_bin_read;  in eeprom_93xx46_probe()
332 	edev->bin.size = 128;  in eeprom_93xx46_probe()
334 		edev->bin.write = eeprom_93xx46_bin_write;  in eeprom_93xx46_probe()
335 		edev->bin.attr.mode |= S_IWUSR;  in eeprom_93xx46_probe()
338 	err = sysfs_create_bin_file(&spi->dev.kobj, &edev->bin);  in eeprom_93xx46_probe()
351 	spi_set_drvdata(spi, edev);  in eeprom_93xx46_probe()
354 	kfree(edev);  in eeprom_93xx46_probe()
360 	struct eeprom_93xx46_dev *edev = spi_get_drvdata(spi);  in eeprom_93xx46_remove()  local
362 	if (!(edev->pdata->flags & EE_READONLY))  in eeprom_93xx46_remove()
365 	sysfs_remove_bin_file(&spi->dev.kobj, &edev->bin);  in eeprom_93xx46_remove()
366 	kfree(edev);  in eeprom_93xx46_remove()