1 // SPDX-License-Identifier: GPL-2.0-only
132 	err = regmap_read(hw->regmap, HTS221_REG_WHOAMI_ADDR, &data);  in hts221_check_whoami()
134 		dev_err(hw->dev, "failed to read whoami register\n");  in hts221_check_whoami()
139 		dev_err(hw->dev, "wrong whoami {%02x vs %02x}\n",  in hts221_check_whoami()
141 		return -ENODEV;  in hts221_check_whoami()
156 		return -EINVAL;  in hts221_update_odr()
158 	err = regmap_update_bits(hw->regmap, HTS221_REG_CNTRL1_ADDR,  in hts221_update_odr()
165 	hw->odr = odr;  in hts221_update_odr()
178 		if (avg->avg_avl[i] == val)  in hts221_update_avg()
182 		return -EINVAL;  in hts221_update_avg()
184 	data = ((i << __ffs(avg->mask)) & avg->mask);  in hts221_update_avg()
185 	err = regmap_update_bits(hw->regmap, avg->addr,  in hts221_update_avg()
186 				 avg->mask, data);  in hts221_update_avg()
190 	hw->sensors[type].cur_avg_idx = i;  in hts221_update_avg()
203 		len += scnprintf(buf + len, PAGE_SIZE - len, "%d ",  in hts221_sysfs_sampling_freq()
205 	buf[len - 1] = '\n';  in hts221_sysfs_sampling_freq()
219 	for (i = 0; i < ARRAY_SIZE(avg->avg_avl); i++)  in hts221_sysfs_rh_oversampling_avail()
220 		len += scnprintf(buf + len, PAGE_SIZE - len, "%d ",  in hts221_sysfs_rh_oversampling_avail()
221 				 avg->avg_avl[i]);  in hts221_sysfs_rh_oversampling_avail()
222 	buf[len - 1] = '\n';  in hts221_sysfs_rh_oversampling_avail()
236 	for (i = 0; i < ARRAY_SIZE(avg->avg_avl); i++)  in hts221_sysfs_temp_oversampling_avail()
237 		len += scnprintf(buf + len, PAGE_SIZE - len, "%d ",  in hts221_sysfs_temp_oversampling_avail()
238 				 avg->avg_avl[i]);  in hts221_sysfs_temp_oversampling_avail()
239 	buf[len - 1] = '\n';  in hts221_sysfs_temp_oversampling_avail()
248 	err = regmap_update_bits(hw->regmap, HTS221_REG_CNTRL1_ADDR,  in hts221_set_enable()
254 	hw->enabled = enable;  in hts221_set_enable()
265 	err = regmap_read(hw->regmap, HTS221_REG_0T_CAL_Y_H, &cal0);  in hts221_parse_temp_caldata()
269 	err = regmap_read(hw->regmap, HTS221_REG_T1_T0_CAL_Y_H, &cal1);  in hts221_parse_temp_caldata()
274 	err = regmap_read(hw->regmap, HTS221_REG_1T_CAL_Y_H, &cal0);  in hts221_parse_temp_caldata()
279 	err = regmap_bulk_read(hw->regmap, HTS221_REG_0T_CAL_X_L,  in hts221_parse_temp_caldata()
285 	err = regmap_bulk_read(hw->regmap, HTS221_REG_1T_CAL_X_L,  in hts221_parse_temp_caldata()
291 	slope = &hw->sensors[HTS221_SENSOR_T].slope;  in hts221_parse_temp_caldata()
292 	b_gen = &hw->sensors[HTS221_SENSOR_T].b_gen;  in hts221_parse_temp_caldata()
294 	*slope = ((cal_y1 - cal_y0) * 8000) / (cal_x1 - cal_x0);  in hts221_parse_temp_caldata()
295 	*b_gen = (((s32)cal_x1 * cal_y0 - (s32)cal_x0 * cal_y1) * 1000) /  in hts221_parse_temp_caldata()
296 		 (cal_x1 - cal_x0);  in hts221_parse_temp_caldata()
308 	err = regmap_read(hw->regmap, HTS221_REG_0RH_CAL_Y_H, &data);  in hts221_parse_rh_caldata()
313 	err = regmap_read(hw->regmap, HTS221_REG_1RH_CAL_Y_H, &data);  in hts221_parse_rh_caldata()
318 	err = regmap_bulk_read(hw->regmap, HTS221_REG_0RH_CAL_X_H,  in hts221_parse_rh_caldata()
324 	err = regmap_bulk_read(hw->regmap, HTS221_REG_1RH_CAL_X_H,  in hts221_parse_rh_caldata()
330 	slope = &hw->sensors[HTS221_SENSOR_H].slope;  in hts221_parse_rh_caldata()
331 	b_gen = &hw->sensors[HTS221_SENSOR_H].b_gen;  in hts221_parse_rh_caldata()
333 	*slope = ((cal_y1 - cal_y0) * 8000) / (cal_x1 - cal_x0);  in hts221_parse_rh_caldata()
334 	*b_gen = (((s32)cal_x1 * cal_y0 - (s32)cal_x0 * cal_y1) * 1000) /  in hts221_parse_rh_caldata()
335 		 (cal_x1 - cal_x0);  in hts221_parse_rh_caldata()
350 		data = hw->sensors[HTS221_SENSOR_H].slope;  in hts221_get_sensor_scale()
354 		data = hw->sensors[HTS221_SENSOR_T].slope;  in hts221_get_sensor_scale()
358 		return -EINVAL;  in hts221_get_sensor_scale()
379 		data = hw->sensors[HTS221_SENSOR_H].b_gen;  in hts221_get_sensor_offset()
380 		div = hw->sensors[HTS221_SENSOR_H].slope;  in hts221_get_sensor_offset()
383 		data = hw->sensors[HTS221_SENSOR_T].b_gen;  in hts221_get_sensor_offset()
384 		div = hw->sensors[HTS221_SENSOR_T].slope;  in hts221_get_sensor_offset()
387 		return -EINVAL;  in hts221_get_sensor_offset()
410 	err = regmap_bulk_read(hw->regmap, addr, &data, sizeof(data));  in hts221_read_oneshot()
434 		ret = hts221_read_oneshot(hw, ch->address, val);  in hts221_read_raw()
437 		ret = hts221_get_sensor_scale(hw, ch->type, val, val2);  in hts221_read_raw()
440 		ret = hts221_get_sensor_offset(hw, ch->type, val, val2);  in hts221_read_raw()
443 		*val = hw->odr;  in hts221_read_raw()
450 		switch (ch->type) {  in hts221_read_raw()
453 			idx = hw->sensors[HTS221_SENSOR_H].cur_avg_idx;  in hts221_read_raw()
454 			*val = avg->avg_avl[idx];  in hts221_read_raw()
459 			idx = hw->sensors[HTS221_SENSOR_T].cur_avg_idx;  in hts221_read_raw()
460 			*val = avg->avg_avl[idx];  in hts221_read_raw()
464 			ret = -EINVAL;  in hts221_read_raw()
470 		ret = -EINVAL;  in hts221_read_raw()
495 		switch (chan->type) {  in hts221_write_raw()
503 			ret = -EINVAL;  in hts221_write_raw()
508 		ret = -EINVAL;  in hts221_write_raw()
522 	return hw->trig == trig ? 0 : -EINVAL;  in hts221_validate_trigger()
574 		return -ENOMEM;  in hts221_probe()
579 	hw->name = name;  in hts221_probe()
580 	hw->dev = dev;  in hts221_probe()
581 	hw->irq = irq;  in hts221_probe()
582 	hw->regmap = regmap;  in hts221_probe()
592 	iio_dev->modes = INDIO_DIRECT_MODE;  in hts221_probe()
593 	iio_dev->available_scan_masks = hts221_scan_masks;  in hts221_probe()
594 	iio_dev->channels = hts221_channels;  in hts221_probe()
595 	iio_dev->num_channels = ARRAY_SIZE(hts221_channels);  in hts221_probe()
596 	iio_dev->name = HTS221_DEV_NAME;  in hts221_probe()
597 	iio_dev->info = &hts221_info;  in hts221_probe()
600 	err = regmap_update_bits(hw->regmap, HTS221_REG_CNTRL1_ADDR,  in hts221_probe()
613 		dev_err(hw->dev, "failed to get rh calibration data\n");  in hts221_probe()
620 		dev_err(hw->dev, "failed to set rh oversampling ratio\n");  in hts221_probe()
627 		dev_err(hw->dev,  in hts221_probe()
635 		dev_err(hw->dev,  in hts221_probe()
636 			"failed to set temperature oversampling ratio\n");  in hts221_probe()
640 	if (hw->irq > 0) {  in hts221_probe()
650 	return devm_iio_device_register(hw->dev, iio_dev);  in hts221_probe()
659 	return regmap_update_bits(hw->regmap, HTS221_REG_CNTRL1_ADDR,  in hts221_suspend()
670 	if (hw->enabled)  in hts221_resume()
671 		err = regmap_update_bits(hw->regmap, HTS221_REG_CNTRL1_ADDR,  in hts221_resume()