57 	int len, error;  in elan_smbus_initialize()  local
64 		error = len < 0 ? len : -EIO;  in elan_smbus_initialize()
65 		return error;  in elan_smbus_initialize()
76 	error = i2c_smbus_write_byte(client, ETP_SMBUS_ENABLE_TP);  in elan_smbus_initialize()
77 	if (error) {  in elan_smbus_initialize()
78 		dev_err(&client->dev, "failed to enable touchpad: %d\n", error);  in elan_smbus_initialize()
79 		return error;  in elan_smbus_initialize()
116 	int error;  in elan_smbus_calibrate_result()  local
121 	error = i2c_smbus_read_block_data(client,  in elan_smbus_calibrate_result()
123 	if (error < 0)  in elan_smbus_calibrate_result()
124 		return error;  in elan_smbus_calibrate_result()
133 	int error;  in elan_smbus_get_baseline_data()  local
136 	error = i2c_smbus_read_block_data(client,  in elan_smbus_get_baseline_data()
141 	if (error < 0)  in elan_smbus_get_baseline_data()
142 		return error;  in elan_smbus_get_baseline_data()
152 	int error;  in elan_smbus_get_version()  local
155 	error = i2c_smbus_read_block_data(client,  in elan_smbus_get_version()
159 	if (error < 0) {  in elan_smbus_get_version()
161 			iap ? "IAP" : "FW", error);  in elan_smbus_get_version()
162 		return error;  in elan_smbus_get_version()
173 	int error;  in elan_smbus_get_sm_version()  local
176 	error = i2c_smbus_read_block_data(client,  in elan_smbus_get_sm_version()
178 	if (error < 0) {  in elan_smbus_get_sm_version()
179 		dev_err(&client->dev, "failed to get SM version: %d\n", error);  in elan_smbus_get_sm_version()
180 		return error;  in elan_smbus_get_sm_version()
191 	int error;  in elan_smbus_get_product_id()  local
194 	error = i2c_smbus_read_block_data(client,  in elan_smbus_get_product_id()
196 	if (error < 0) {  in elan_smbus_get_product_id()
197 		dev_err(&client->dev, "failed to get product ID: %d\n", error);  in elan_smbus_get_product_id()
198 		return error;  in elan_smbus_get_product_id()
208 	int error;  in elan_smbus_get_checksum()  local
211 	error = i2c_smbus_read_block_data(client,  in elan_smbus_get_checksum()
215 	if (error < 0) {  in elan_smbus_get_checksum()
217 			iap ? "IAP" : "FW", error);  in elan_smbus_get_checksum()
218 		return error;  in elan_smbus_get_checksum()
229 	int error;  in elan_smbus_get_max()  local
234 		error = ret < 0 ? ret : -EIO;  in elan_smbus_get_max()
235 		dev_err(&client->dev, "failed to get dimensions: %d\n", error);  in elan_smbus_get_max()
236 		return error;  in elan_smbus_get_max()
249 	int error;  in elan_smbus_get_resolution()  local
254 		error = ret < 0 ? ret : -EIO;  in elan_smbus_get_resolution()
255 		dev_err(&client->dev, "failed to get resolution: %d\n", error);  in elan_smbus_get_resolution()
256 		return error;  in elan_smbus_get_resolution()
270 	int error;  in elan_smbus_get_num_traces()  local
275 		error = ret < 0 ? ret : -EIO;  in elan_smbus_get_num_traces()
276 		dev_err(&client->dev, "failed to get trace info: %d\n", error);  in elan_smbus_get_num_traces()
277 		return error;  in elan_smbus_get_num_traces()
296 	int error;  in elan_smbus_iap_get_mode()  local
300 	error = i2c_smbus_read_block_data(client, ETP_SMBUS_IAP_CTRL_CMD, val);  in elan_smbus_iap_get_mode()
301 	if (error < 0) {  in elan_smbus_iap_get_mode()
303 			error);  in elan_smbus_iap_get_mode()
304 		return error;  in elan_smbus_iap_get_mode()
317 	int error;  in elan_smbus_iap_reset()  local
319 	error = i2c_smbus_write_byte(client, ETP_SMBUS_IAP_RESET_CMD);  in elan_smbus_iap_reset()
320 	if (error) {  in elan_smbus_iap_reset()
321 		dev_err(&client->dev, "cannot reset IC: %d\n", error);  in elan_smbus_iap_reset()
322 		return error;  in elan_smbus_iap_reset()
330 	int error;  in elan_smbus_set_flash_key()  local
333 	error = i2c_smbus_write_block_data(client, ETP_SMBUS_IAP_CMD,  in elan_smbus_set_flash_key()
335 	if (error) {  in elan_smbus_set_flash_key()
336 		dev_err(&client->dev, "cannot set flash key: %d\n", error);  in elan_smbus_set_flash_key()
337 		return error;  in elan_smbus_set_flash_key()
347 	int error;  in elan_smbus_prepare_fw_update()  local
354 	error = elan_smbus_iap_get_mode(client, &mode);  in elan_smbus_prepare_fw_update()
355 	if (error)  in elan_smbus_prepare_fw_update()
356 		return error;  in elan_smbus_prepare_fw_update()
361 		error = elan_smbus_set_flash_key(client);  in elan_smbus_prepare_fw_update()
362 		if (error)  in elan_smbus_prepare_fw_update()
363 			return error;  in elan_smbus_prepare_fw_update()
372 		error = i2c_smbus_write_block_data(client, ETP_SMBUS_IAP_CMD,  in elan_smbus_prepare_fw_update()
374 		if (error) {  in elan_smbus_prepare_fw_update()
376 				error);  in elan_smbus_prepare_fw_update()
377 			return error;  in elan_smbus_prepare_fw_update()
388 			error = len < 0 ? len : -EIO;  in elan_smbus_prepare_fw_update()
390 				error);  in elan_smbus_prepare_fw_update()
391 			return error;  in elan_smbus_prepare_fw_update()
404 	error = elan_smbus_set_flash_key(client);  in elan_smbus_prepare_fw_update()
405 	if (error)  in elan_smbus_prepare_fw_update()
406 		return error;  in elan_smbus_prepare_fw_update()
409 	error = elan_smbus_iap_reset(client);  in elan_smbus_prepare_fw_update()
410 	if (error)  in elan_smbus_prepare_fw_update()
411 		return error;  in elan_smbus_prepare_fw_update()
421 	int error;  in elan_smbus_write_fw_block()  local
430 	error = i2c_smbus_write_block_data(client,  in elan_smbus_write_fw_block()
434 	if (error) {  in elan_smbus_write_fw_block()
436 			idx, 1, error);  in elan_smbus_write_fw_block()
437 		return error;  in elan_smbus_write_fw_block()
440 	error = i2c_smbus_write_block_data(client,  in elan_smbus_write_fw_block()
444 	if (error) {  in elan_smbus_write_fw_block()
446 			idx, 2, error);  in elan_smbus_write_fw_block()
447 		return error;  in elan_smbus_write_fw_block()
454 	error = i2c_smbus_read_block_data(client,  in elan_smbus_write_fw_block()
456 	if (error < 0) {  in elan_smbus_write_fw_block()
458 			error);  in elan_smbus_write_fw_block()
459 		return error;  in elan_smbus_write_fw_block()