60 	int len, error;  in elan_smbus_initialize()  local
67 		error = len < 0 ? len : -EIO;  in elan_smbus_initialize()
68 		return error;  in elan_smbus_initialize()
79 	error = i2c_smbus_write_byte(client, ETP_SMBUS_ENABLE_TP);  in elan_smbus_initialize()
80 	if (error) {  in elan_smbus_initialize()
81 		dev_err(&client->dev, "failed to enable touchpad: %d\n", error);  in elan_smbus_initialize()
82 		return error;  in elan_smbus_initialize()
119 	int error;  in elan_smbus_calibrate_result()  local
124 	error = i2c_smbus_read_block_data(client,  in elan_smbus_calibrate_result()
126 	if (error < 0)  in elan_smbus_calibrate_result()
127 		return error;  in elan_smbus_calibrate_result()
136 	int error;  in elan_smbus_get_baseline_data()  local
139 	error = i2c_smbus_read_block_data(client,  in elan_smbus_get_baseline_data()
144 	if (error < 0)  in elan_smbus_get_baseline_data()
145 		return error;  in elan_smbus_get_baseline_data()
155 	int error;  in elan_smbus_get_version()  local
158 	error = i2c_smbus_read_block_data(client,  in elan_smbus_get_version()
162 	if (error < 0) {  in elan_smbus_get_version()
164 			iap ? "IAP" : "FW", error);  in elan_smbus_get_version()
165 		return error;  in elan_smbus_get_version()
176 	int error;  in elan_smbus_get_sm_version()  local
179 	error = i2c_smbus_read_block_data(client,  in elan_smbus_get_sm_version()
181 	if (error < 0) {  in elan_smbus_get_sm_version()
182 		dev_err(&client->dev, "failed to get SM version: %d\n", error);  in elan_smbus_get_sm_version()
183 		return error;  in elan_smbus_get_sm_version()
194 	int error;  in elan_smbus_get_product_id()  local
197 	error = i2c_smbus_read_block_data(client,  in elan_smbus_get_product_id()
199 	if (error < 0) {  in elan_smbus_get_product_id()
200 		dev_err(&client->dev, "failed to get product ID: %d\n", error);  in elan_smbus_get_product_id()
201 		return error;  in elan_smbus_get_product_id()
211 	int error;  in elan_smbus_get_checksum()  local
214 	error = i2c_smbus_read_block_data(client,  in elan_smbus_get_checksum()
218 	if (error < 0) {  in elan_smbus_get_checksum()
220 			iap ? "IAP" : "FW", error);  in elan_smbus_get_checksum()
221 		return error;  in elan_smbus_get_checksum()
232 	int error;  in elan_smbus_get_max()  local
237 		error = ret < 0 ? ret : -EIO;  in elan_smbus_get_max()
238 		dev_err(&client->dev, "failed to get dimensions: %d\n", error);  in elan_smbus_get_max()
239 		return error;  in elan_smbus_get_max()
252 	int error;  in elan_smbus_get_resolution()  local
257 		error = ret < 0 ? ret : -EIO;  in elan_smbus_get_resolution()
258 		dev_err(&client->dev, "failed to get resolution: %d\n", error);  in elan_smbus_get_resolution()
259 		return error;  in elan_smbus_get_resolution()
273 	int error;  in elan_smbus_get_num_traces()  local
278 		error = ret < 0 ? ret : -EIO;  in elan_smbus_get_num_traces()
279 		dev_err(&client->dev, "failed to get trace info: %d\n", error);  in elan_smbus_get_num_traces()
280 		return error;  in elan_smbus_get_num_traces()
299 	int error;  in elan_smbus_iap_get_mode()  local
303 	error = i2c_smbus_read_block_data(client, ETP_SMBUS_IAP_CTRL_CMD, val);  in elan_smbus_iap_get_mode()
304 	if (error < 0) {  in elan_smbus_iap_get_mode()
306 			error);  in elan_smbus_iap_get_mode()
307 		return error;  in elan_smbus_iap_get_mode()
320 	int error;  in elan_smbus_iap_reset()  local
322 	error = i2c_smbus_write_byte(client, ETP_SMBUS_IAP_RESET_CMD);  in elan_smbus_iap_reset()
323 	if (error) {  in elan_smbus_iap_reset()
324 		dev_err(&client->dev, "cannot reset IC: %d\n", error);  in elan_smbus_iap_reset()
325 		return error;  in elan_smbus_iap_reset()
333 	int error;  in elan_smbus_set_flash_key()  local
336 	error = i2c_smbus_write_block_data(client, ETP_SMBUS_IAP_CMD,  in elan_smbus_set_flash_key()
338 	if (error) {  in elan_smbus_set_flash_key()
339 		dev_err(&client->dev, "cannot set flash key: %d\n", error);  in elan_smbus_set_flash_key()
340 		return error;  in elan_smbus_set_flash_key()
350 	int error;  in elan_smbus_prepare_fw_update()  local
357 	error = elan_smbus_iap_get_mode(client, &mode);  in elan_smbus_prepare_fw_update()
358 	if (error)  in elan_smbus_prepare_fw_update()
359 		return error;  in elan_smbus_prepare_fw_update()
364 		error = elan_smbus_set_flash_key(client);  in elan_smbus_prepare_fw_update()
365 		if (error)  in elan_smbus_prepare_fw_update()
366 			return error;  in elan_smbus_prepare_fw_update()
375 		error = i2c_smbus_write_block_data(client, ETP_SMBUS_IAP_CMD,  in elan_smbus_prepare_fw_update()
377 		if (error) {  in elan_smbus_prepare_fw_update()
379 				error);  in elan_smbus_prepare_fw_update()
380 			return error;  in elan_smbus_prepare_fw_update()
391 			error = len < 0 ? len : -EIO;  in elan_smbus_prepare_fw_update()
393 				error);  in elan_smbus_prepare_fw_update()
394 			return error;  in elan_smbus_prepare_fw_update()
407 	error = elan_smbus_set_flash_key(client);  in elan_smbus_prepare_fw_update()
408 	if (error)  in elan_smbus_prepare_fw_update()
409 		return error;  in elan_smbus_prepare_fw_update()
412 	error = elan_smbus_iap_reset(client);  in elan_smbus_prepare_fw_update()
413 	if (error)  in elan_smbus_prepare_fw_update()
414 		return error;  in elan_smbus_prepare_fw_update()
424 	int error;  in elan_smbus_write_fw_block()  local
433 	error = i2c_smbus_write_block_data(client,  in elan_smbus_write_fw_block()
437 	if (error) {  in elan_smbus_write_fw_block()
439 			idx, 1, error);  in elan_smbus_write_fw_block()
440 		return error;  in elan_smbus_write_fw_block()
443 	error = i2c_smbus_write_block_data(client,  in elan_smbus_write_fw_block()
447 	if (error) {  in elan_smbus_write_fw_block()
449 			idx, 2, error);  in elan_smbus_write_fw_block()
450 		return error;  in elan_smbus_write_fw_block()
457 	error = i2c_smbus_read_block_data(client,  in elan_smbus_write_fw_block()
459 	if (error < 0) {  in elan_smbus_write_fw_block()
461 			error);  in elan_smbus_write_fw_block()
462 		return error;  in elan_smbus_write_fw_block()