69 	int ret, tries = 150;  in mag3110_request()  local
73 		ret = i2c_smbus_write_byte_data(data->client, MAG3110_CTRL_REG1,  in mag3110_request()
75 		if (ret < 0)  in mag3110_request()
76 			return ret;  in mag3110_request()
80 		ret = i2c_smbus_read_byte_data(data->client, MAG3110_STATUS);  in mag3110_request()
81 		if (ret < 0)  in mag3110_request()
82 			return ret;  in mag3110_request()
84 		if ((ret & MAG3110_STATUS_DRDY) == MAG3110_STATUS_DRDY)  in mag3110_request()
103 	int ret;  in mag3110_read()  local
106 	ret = mag3110_request(data);  in mag3110_read()
107 	if (ret < 0) {  in mag3110_read()
109 		return ret;  in mag3110_read()
111 	ret = i2c_smbus_read_i2c_block_data(data->client,  in mag3110_read()
115 	return ret;  in mag3110_read()
165 	int ret, i = data->ctrl_reg1 >> MAG3110_CTRL_DR_SHIFT;  in mag3110_calculate_sleep()  local
168 		ret = 1000 / mag3110_samp_freq[i][0];  in mag3110_calculate_sleep()
170 		ret = 1000;  in mag3110_calculate_sleep()
172 	return ret == 0 ? 1 : ret;  in mag3110_calculate_sleep()
183 	int ret, tries = 30;  in mag3110_wait_standby()  local
191 		ret = i2c_smbus_read_byte_data(data->client, MAG3110_SYSMOD);  in mag3110_wait_standby()
192 		if (ret < 0) {  in mag3110_wait_standby()
194 			return ret;  in mag3110_wait_standby()
197 		if ((ret & MAG3110_SYSMOD_MODE_MASK) == 0)  in mag3110_wait_standby()
231 	int ret;  in mag3110_change_config()  local
238 		ret = is_active;  in mag3110_change_config()
244 		ret = mag3110_standby(data);  in mag3110_change_config()
245 		if (ret < 0)  in mag3110_change_config()
253 	ret = mag3110_wait_standby(data);  in mag3110_change_config()
254 	if (ret < 0)  in mag3110_change_config()
257 	ret = i2c_smbus_write_byte_data(data->client, reg, val);  in mag3110_change_config()
258 	if (ret < 0)  in mag3110_change_config()
262 		ret = mag3110_active(data);  in mag3110_change_config()
263 		if (ret < 0)  in mag3110_change_config()
267 	ret = 0;  in mag3110_change_config()
271 	return ret;  in mag3110_change_config()
280 	int i, ret;  in mag3110_read_raw()  local
284 		ret = iio_device_claim_direct_mode(indio_dev);  in mag3110_read_raw()
285 		if (ret)  in mag3110_read_raw()
286 			return ret;  in mag3110_read_raw()
290 			ret = mag3110_read(data, buffer);  in mag3110_read_raw()
291 			if (ret < 0)  in mag3110_read_raw()
296 			ret = IIO_VAL_INT;  in mag3110_read_raw()
300 			ret = mag3110_request(data);  in mag3110_read_raw()
301 			if (ret < 0) {  in mag3110_read_raw()
305 			ret = i2c_smbus_read_byte_data(data->client,  in mag3110_read_raw()
308 			if (ret < 0)  in mag3110_read_raw()
310 			*val = sign_extend32(ret,  in mag3110_read_raw()
312 			ret = IIO_VAL_INT;  in mag3110_read_raw()
315 			ret = -EINVAL;  in mag3110_read_raw()
319 		return ret;  in mag3110_read_raw()
339 		ret = i2c_smbus_read_word_swapped(data->client,  in mag3110_read_raw()
341 		if (ret < 0)  in mag3110_read_raw()
342 			return ret;  in mag3110_read_raw()
343 		*val = sign_extend32(ret >> 1, 14);  in mag3110_read_raw()
354 	int rate, ret;  in mag3110_write_raw()  local
356 	ret = iio_device_claim_direct_mode(indio_dev);  in mag3110_write_raw()
357 	if (ret)  in mag3110_write_raw()
358 		return ret;  in mag3110_write_raw()
364 			ret = -EINVAL;  in mag3110_write_raw()
374 		ret = mag3110_change_config(data, MAG3110_CTRL_REG1,  in mag3110_write_raw()
379 			ret = -EINVAL;  in mag3110_write_raw()
382 		ret = i2c_smbus_write_word_swapped(data->client,  in mag3110_write_raw()
386 		ret = -EINVAL;  in mag3110_write_raw()
390 	return ret;  in mag3110_write_raw()
398 	int ret;  in mag3110_trigger_handler()  local
400 	ret = mag3110_read(data, data->scan.channels);  in mag3110_trigger_handler()
401 	if (ret < 0)  in mag3110_trigger_handler()
405 		ret = i2c_smbus_read_byte_data(data->client,  in mag3110_trigger_handler()
407 		if (ret < 0)  in mag3110_trigger_handler()
409 		data->scan.temperature = ret;  in mag3110_trigger_handler()
477 	int ret;  in mag3110_probe()  local
495 	ret = regulator_enable(data->vdd_reg);  in mag3110_probe()
496 	if (ret) {  in mag3110_probe()
498 		return ret;  in mag3110_probe()
501 	ret = regulator_enable(data->vddio_reg);  in mag3110_probe()
502 	if (ret) {  in mag3110_probe()
507 	ret = i2c_smbus_read_byte_data(client, MAG3110_WHO_AM_I);  in mag3110_probe()
508 	if (ret < 0)  in mag3110_probe()
510 	if (ret != MAG3110_DEVICE_ID) {  in mag3110_probe()
511 		ret = -ENODEV;  in mag3110_probe()
531 	ret = mag3110_change_config(data, MAG3110_CTRL_REG1, data->ctrl_reg1);  in mag3110_probe()
532 	if (ret < 0)  in mag3110_probe()
535 	ret = i2c_smbus_write_byte_data(client, MAG3110_CTRL_REG2,  in mag3110_probe()
537 	if (ret < 0)  in mag3110_probe()
540 	ret = iio_triggered_buffer_setup(indio_dev, NULL,  in mag3110_probe()
542 	if (ret < 0)  in mag3110_probe()
545 	ret = iio_device_register(indio_dev);  in mag3110_probe()
546 	if (ret < 0)  in mag3110_probe()
559 	return ret;  in mag3110_probe()
578 	int ret;  in mag3110_suspend()  local
580 	ret = mag3110_standby(iio_priv(i2c_get_clientdata(  in mag3110_suspend()
582 	if (ret)  in mag3110_suspend()
583 		return ret;  in mag3110_suspend()
585 	ret = regulator_disable(data->vddio_reg);  in mag3110_suspend()
586 	if (ret) {  in mag3110_suspend()
588 		return ret;  in mag3110_suspend()
591 	ret = regulator_disable(data->vdd_reg);  in mag3110_suspend()
592 	if (ret) {  in mag3110_suspend()
594 		return ret;  in mag3110_suspend()
604 	int ret;  in mag3110_resume()  local
606 	ret = regulator_enable(data->vdd_reg);  in mag3110_resume()
607 	if (ret) {  in mag3110_resume()
609 		return ret;  in mag3110_resume()
612 	ret = regulator_enable(data->vddio_reg);  in mag3110_resume()
613 	if (ret) {  in mag3110_resume()
616 		return ret;  in mag3110_resume()