58 	int len, error;  in elan_smbus_initialize()  local
65 		error = len < 0 ? len : -EIO;  in elan_smbus_initialize()
66 		return error;  in elan_smbus_initialize()
77 	error = i2c_smbus_write_byte(client, ETP_SMBUS_ENABLE_TP);  in elan_smbus_initialize()
78 	if (error) {  in elan_smbus_initialize()
79 		dev_err(&client->dev, "failed to enable touchpad: %d\n", error);  in elan_smbus_initialize()
80 		return error;  in elan_smbus_initialize()
117 	int error;  in elan_smbus_calibrate_result()  local
122 	error = i2c_smbus_read_block_data(client,  in elan_smbus_calibrate_result()
124 	if (error < 0)  in elan_smbus_calibrate_result()
125 		return error;  in elan_smbus_calibrate_result()
134 	int error;  in elan_smbus_get_baseline_data()  local
137 	error = i2c_smbus_read_block_data(client,  in elan_smbus_get_baseline_data()
142 	if (error < 0)  in elan_smbus_get_baseline_data()
143 		return error;  in elan_smbus_get_baseline_data()
153 	int error;  in elan_smbus_get_version()  local
156 	error = i2c_smbus_read_block_data(client,  in elan_smbus_get_version()
160 	if (error < 0) {  in elan_smbus_get_version()
162 			iap ? "IAP" : "FW", error);  in elan_smbus_get_version()
163 		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()
348 	int error;  in elan_smbus_prepare_fw_update()  local
355 	error = elan_smbus_iap_get_mode(client, &mode);  in elan_smbus_prepare_fw_update()
356 	if (error)  in elan_smbus_prepare_fw_update()
357 		return error;  in elan_smbus_prepare_fw_update()
362 		error = elan_smbus_set_flash_key(client);  in elan_smbus_prepare_fw_update()
363 		if (error)  in elan_smbus_prepare_fw_update()
364 			return error;  in elan_smbus_prepare_fw_update()
373 		error = i2c_smbus_write_block_data(client, ETP_SMBUS_IAP_CMD,  in elan_smbus_prepare_fw_update()
375 		if (error) {  in elan_smbus_prepare_fw_update()
377 				error);  in elan_smbus_prepare_fw_update()
378 			return error;  in elan_smbus_prepare_fw_update()
389 			error = len < 0 ? len : -EIO;  in elan_smbus_prepare_fw_update()
391 				error);  in elan_smbus_prepare_fw_update()
392 			return error;  in elan_smbus_prepare_fw_update()
405 	error = elan_smbus_set_flash_key(client);  in elan_smbus_prepare_fw_update()
406 	if (error)  in elan_smbus_prepare_fw_update()
407 		return error;  in elan_smbus_prepare_fw_update()
410 	error = elan_smbus_iap_reset(client);  in elan_smbus_prepare_fw_update()
411 	if (error)  in elan_smbus_prepare_fw_update()
412 		return error;  in elan_smbus_prepare_fw_update()
422 	int error;  in elan_smbus_write_fw_block()  local
431 	error = i2c_smbus_write_block_data(client,  in elan_smbus_write_fw_block()
435 	if (error) {  in elan_smbus_write_fw_block()
437 			idx, 1, error);  in elan_smbus_write_fw_block()
438 		return error;  in elan_smbus_write_fw_block()
441 	error = i2c_smbus_write_block_data(client,  in elan_smbus_write_fw_block()
445 	if (error) {  in elan_smbus_write_fw_block()
447 			idx, 2, error);  in elan_smbus_write_fw_block()
448 		return error;  in elan_smbus_write_fw_block()
455 	error = i2c_smbus_read_block_data(client,  in elan_smbus_write_fw_block()
457 	if (error < 0) {  in elan_smbus_write_fw_block()
459 			error);  in elan_smbus_write_fw_block()
460 		return error;  in elan_smbus_write_fw_block()