iio/light/tsl2583.c

172 	int i, ret;
174 	ret = i2c_smbus_read_byte_data(chip->client, TSL2583_CMD_REG);
175 	if (ret < 0) {
182 	if (!(ret & TSL2583_STA_ADC_INTR)) {
185 		ret = chip->als_cur_info.lux; /* return LAST VALUE */
192 		ret = i2c_smbus_read_byte_data(chip->client, reg);
193 		if (ret < 0) {
198 		buf[i] = ret;
206 	ret = i2c_smbus_write_byte(chip->client,
209 	if (ret < 0) {
231 		ret = 0;
260 			ret = 0;
297 	ret = lux;
300 	return ret;
312 	int ret;
315 	ret = i2c_smbus_read_byte_data(chip->client,
317 	if (ret < 0) {
321 		return ret;
324 	if ((ret & (TSL2583_CNTL_ADC_ENBL | TSL2583_CNTL_PWR_ON))
330 	} else if ((ret & TSL2583_STA_ADC_VALID) != TSL2583_STA_ADC_VALID) {
368 	int als_count, als_time, ret;
380 	ret = i2c_smbus_write_byte_data(chip->client,
383 	if (ret < 0) {
386 		return ret;
393 	return ret;
398 	int ret;
401 	ret = i2c_smbus_write_byte_data(chip->client,
404 	if (ret < 0)
409 	return ret;
414 	int ret;
416 	ret = i2c_smbus_write_byte_data(chip->client,
418 	if (ret < 0)
423 	return ret;
433 	int ret;
436 	ret = tsl2583_set_power_state(chip, TSL2583_CNTL_PWR_ON);
437 	if (ret < 0)
438 		return ret;
440 	ret = i2c_smbus_write_byte_data(chip->client,
443 	if (ret < 0) {
446 		return ret;
449 	ret = tsl2583_set_als_time(chip);
450 	if (ret < 0)
451 		return ret;
453 	ret = tsl2583_set_als_gain(chip);
454 	if (ret < 0)
455 		return ret;
459 	ret = tsl2583_set_power_state(chip, TSL2583_CNTL_PWR_ON |
461 	if (ret < 0)
462 		return ret;
464 	return ret;
475 	int ret;
478 	ret = sprintf(buf, "%d\n", chip->als_settings.als_cal_target);
481 	return ret;
508 	int value, ret;
515 	ret = tsl2583_als_calibrate(indio_dev);
516 	if (ret < 0)
519 	ret = len;
523 	return ret;
563 	int ret = -EINVAL;
592 	ret = len;
597 	return ret;
644 	int ret;
647 		ret = pm_runtime_resume_and_get(&chip->client->dev);
650 		ret = pm_runtime_put_autosuspend(&chip->client->dev);
653 	return ret;
661 	int ret, pm_ret;
663 	ret = tsl2583_set_pm_runtime_busy(chip, true);
664 	if (ret < 0)
665 		return ret;
669 	ret = -EINVAL;
673 			ret = tsl2583_get_lux(indio_dev);
674 			if (ret < 0)
691 			ret = IIO_VAL_INT;
696 			ret = tsl2583_get_lux(indio_dev);
697 			if (ret < 0)
700 			*val = ret;
701 			ret = IIO_VAL_INT;
707 			ret = IIO_VAL_INT;
713 			ret = IIO_VAL_INT;
720 			ret = IIO_VAL_INT_PLUS_MICRO;
730 	if (ret < 0) {
732 		return ret;
736 	 * Preserve the ret variable if the call to
744 	return ret;
752 	int ret;
754 	ret = tsl2583_set_pm_runtime_busy(chip, true);
755 	if (ret < 0)
756 		return ret;
760 	ret = -EINVAL;
765 			ret = 0;
775 					ret = tsl2583_set_als_gain(chip);
785 			ret = tsl2583_set_als_time(chip);
794 	if (ret < 0) {
796 		return ret;
799 	ret = tsl2583_set_pm_runtime_busy(chip, false);
800 	if (ret < 0)
801 		return ret;
803 	return ret;
814 	int ret;
835 	ret = i2c_smbus_read_byte_data(clientp,
837 	if (ret < 0) {
840 		return ret;
843 	if ((ret & TSL2583_CHIP_ID_MASK) != TSL2583_CHIP_ID) {
845 			__func__, ret);
860 	ret = iio_device_register(indio_dev);
861 	if (ret) {
864 		return ret;
892 	int ret;
896 	ret = tsl2583_set_power_state(chip, TSL2583_CNTL_PWR_OFF);
900 	return ret;
907 	int ret;
911 	ret = tsl2583_chip_init_and_power_on(indio_dev);
915 	return ret;