41 	struct eeprom_93xx46_dev *edev;  in eeprom_93xx46_bin_read()  local
49 	edev = dev_get_drvdata(dev);  in eeprom_93xx46_bin_read()
51 	if (unlikely(off >= edev->bin.size))  in eeprom_93xx46_bin_read()
53 	if ((off + count) > edev->bin.size)  in eeprom_93xx46_bin_read()
54 		count = edev->bin.size - off;  in eeprom_93xx46_bin_read()
58 	cmd_addr = OP_READ << edev->addrlen;  in eeprom_93xx46_bin_read()
60 	if (edev->addrlen == 7) {  in eeprom_93xx46_bin_read()
68 	dev_dbg(&edev->spi->dev, "read cmd 0x%x, %d Hz\n",  in eeprom_93xx46_bin_read()
69 		cmd_addr, edev->spi->max_speed_hz);  in eeprom_93xx46_bin_read()
84 	mutex_lock(&edev->lock);  in eeprom_93xx46_bin_read()
86 	if (edev->pdata->prepare)  in eeprom_93xx46_bin_read()
87 		edev->pdata->prepare(edev);  in eeprom_93xx46_bin_read()
89 	ret = spi_sync(edev->spi, &m);  in eeprom_93xx46_bin_read()
93 		dev_err(&edev->spi->dev, "read %zu bytes at %d: err. %d\n",  in eeprom_93xx46_bin_read()
97 	if (edev->pdata->finish)  in eeprom_93xx46_bin_read()
98 		edev->pdata->finish(edev);  in eeprom_93xx46_bin_read()
100 	mutex_unlock(&edev->lock);  in eeprom_93xx46_bin_read()
104 static int eeprom_93xx46_ew(struct eeprom_93xx46_dev *edev, int is_on)  in eeprom_93xx46_ew()  argument
111 	cmd_addr = OP_START << edev->addrlen;  in eeprom_93xx46_ew()
112 	if (edev->addrlen == 7) {  in eeprom_93xx46_ew()
120 	dev_dbg(&edev->spi->dev, "ew cmd 0x%04x\n", cmd_addr);  in eeprom_93xx46_ew()
130 	mutex_lock(&edev->lock);  in eeprom_93xx46_ew()
132 	if (edev->pdata->prepare)  in eeprom_93xx46_ew()
133 		edev->pdata->prepare(edev);  in eeprom_93xx46_ew()
135 	ret = spi_sync(edev->spi, &m);  in eeprom_93xx46_ew()
139 		dev_err(&edev->spi->dev, "erase/write %sable error %d\n",  in eeprom_93xx46_ew()
142 	if (edev->pdata->finish)  in eeprom_93xx46_ew()
143 		edev->pdata->finish(edev);  in eeprom_93xx46_ew()
145 	mutex_unlock(&edev->lock);  in eeprom_93xx46_ew()
150 eeprom_93xx46_write_word(struct eeprom_93xx46_dev *edev,  in eeprom_93xx46_write_word()  argument
158 	cmd_addr = OP_WRITE << edev->addrlen;  in eeprom_93xx46_write_word()
160 	if (edev->addrlen == 7) {  in eeprom_93xx46_write_word()
170 	dev_dbg(&edev->spi->dev, "write cmd 0x%x\n", cmd_addr);  in eeprom_93xx46_write_word()
185 	ret = spi_sync(edev->spi, &m);  in eeprom_93xx46_write_word()
196 	struct eeprom_93xx46_dev *edev;  in eeprom_93xx46_bin_write()  local
201 	edev = dev_get_drvdata(dev);  in eeprom_93xx46_bin_write()
203 	if (unlikely(off >= edev->bin.size))  in eeprom_93xx46_bin_write()
205 	if ((off + count) > edev->bin.size)  in eeprom_93xx46_bin_write()
206 		count = edev->bin.size - off;  in eeprom_93xx46_bin_write()
211 	if (edev->addrlen == 6) {  in eeprom_93xx46_bin_write()
217 	ret = eeprom_93xx46_ew(edev, 1);  in eeprom_93xx46_bin_write()
221 	mutex_lock(&edev->lock);  in eeprom_93xx46_bin_write()
223 	if (edev->pdata->prepare)  in eeprom_93xx46_bin_write()
224 		edev->pdata->prepare(edev);  in eeprom_93xx46_bin_write()
227 		ret = eeprom_93xx46_write_word(edev, &buf[i], off + i);  in eeprom_93xx46_bin_write()
229 			dev_err(&edev->spi->dev, "write failed at %d: %d\n",  in eeprom_93xx46_bin_write()
235 	if (edev->pdata->finish)  in eeprom_93xx46_bin_write()
236 		edev->pdata->finish(edev);  in eeprom_93xx46_bin_write()
238 	mutex_unlock(&edev->lock);  in eeprom_93xx46_bin_write()
241 	eeprom_93xx46_ew(edev, 0);  in eeprom_93xx46_bin_write()
245 static int eeprom_93xx46_eral(struct eeprom_93xx46_dev *edev)  in eeprom_93xx46_eral()  argument
247 	struct eeprom_93xx46_platform_data *pd = edev->pdata;  in eeprom_93xx46_eral()
253 	cmd_addr = OP_START << edev->addrlen;  in eeprom_93xx46_eral()
254 	if (edev->addrlen == 7) {  in eeprom_93xx46_eral()
270 	mutex_lock(&edev->lock);  in eeprom_93xx46_eral()
272 	if (edev->pdata->prepare)  in eeprom_93xx46_eral()
273 		edev->pdata->prepare(edev);  in eeprom_93xx46_eral()
275 	ret = spi_sync(edev->spi, &m);  in eeprom_93xx46_eral()
277 		dev_err(&edev->spi->dev, "erase error %d\n", ret);  in eeprom_93xx46_eral()
282 		pd->finish(edev);  in eeprom_93xx46_eral()
284 	mutex_unlock(&edev->lock);  in eeprom_93xx46_eral()
292 	struct eeprom_93xx46_dev *edev = dev_get_drvdata(dev);  in eeprom_93xx46_store_erase()  local
297 		ret = eeprom_93xx46_ew(edev, 1);  in eeprom_93xx46_store_erase()
300 		ret = eeprom_93xx46_eral(edev);  in eeprom_93xx46_store_erase()
303 		ret = eeprom_93xx46_ew(edev, 0);  in eeprom_93xx46_store_erase()
314 	struct eeprom_93xx46_dev *edev;  in eeprom_93xx46_probe()  local
323 	edev = kzalloc(sizeof(*edev), GFP_KERNEL);  in eeprom_93xx46_probe()
324 	if (!edev)  in eeprom_93xx46_probe()
328 		edev->addrlen = 7;  in eeprom_93xx46_probe()
330 		edev->addrlen = 6;  in eeprom_93xx46_probe()
337 	mutex_init(&edev->lock);  in eeprom_93xx46_probe()
339 	edev->spi = spi_dev_get(spi);  in eeprom_93xx46_probe()
340 	edev->pdata = pd;  in eeprom_93xx46_probe()
342 	sysfs_bin_attr_init(&edev->bin);  in eeprom_93xx46_probe()
343 	edev->bin.attr.name = "eeprom";  in eeprom_93xx46_probe()
344 	edev->bin.attr.mode = S_IRUSR;  in eeprom_93xx46_probe()
345 	edev->bin.read = eeprom_93xx46_bin_read;  in eeprom_93xx46_probe()
346 	edev->bin.size = 128;  in eeprom_93xx46_probe()
348 		edev->bin.write = eeprom_93xx46_bin_write;  in eeprom_93xx46_probe()
349 		edev->bin.attr.mode |= S_IWUSR;  in eeprom_93xx46_probe()
352 	err = sysfs_create_bin_file(&spi->dev.kobj, &edev->bin);  in eeprom_93xx46_probe()
365 	spi_set_drvdata(spi, edev);  in eeprom_93xx46_probe()
368 	kfree(edev);  in eeprom_93xx46_probe()
374 	struct eeprom_93xx46_dev *edev = spi_get_drvdata(spi);  in eeprom_93xx46_remove()  local
376 	if (!(edev->pdata->flags & EE_READONLY))  in eeprom_93xx46_remove()
379 	sysfs_remove_bin_file(&spi->dev.kobj, &edev->bin);  in eeprom_93xx46_remove()
380 	kfree(edev);  in eeprom_93xx46_remove()