1 // SPDX-License-Identifier: GPL-2.0
39 #define OPT4001_CTRL_OPER_MODE_MASK      GENMASK(5, 4)
51 #define OPT4001_CTRL_OPER_MODE_CONTINUOUS 0x3
57 #define OPT4001_CTRL_CONVERSION_3_4MS   0x3
93 	.name = "opt4001-sot-5x3"
99 	.name = "opt4001-picostar"
145 	return -EINVAL;  in opt4001_als_time_to_index()
166 	struct device *dev = &chip->client->dev;  in opt4001_read_lux_value()
178 	ret = regmap_read(chip->regmap, OPT4001_LIGHT1_MSB, &light1);  in opt4001_read_lux_value()
184 	ret = regmap_read(chip->regmap, OPT4001_LIGHT1_LSB, &light2);  in opt4001_read_lux_value()
198 		return -EIO;  in opt4001_read_lux_value()
201 	lux_raw = lux_raw * chip->chip_info->mul;  in opt4001_read_lux_value()
202 	*val = div_u64_rem(lux_raw, chip->chip_info->div, val2);  in opt4001_read_lux_value()
210 	struct device *dev = &chip->client->dev;  in opt4001_set_conf()
215 	reg |= FIELD_PREP(OPT4001_CTRL_CONV_TIME_MASK, chip->int_time);  in opt4001_set_conf()
218 	ret = regmap_write(chip->regmap, OPT4001_CTRL, reg);  in opt4001_set_conf()
227 	struct device *dev = &chip->client->dev;  in opt4001_power_down()
231 	ret = regmap_read(chip->regmap, OPT4001_DEVICE_ID, &reg);  in opt4001_power_down()
240 	ret = regmap_write(chip->regmap, OPT4001_CTRL, reg);  in opt4001_power_down()
274 		*val2 = opt4001_int_time_reg[chip->int_time][0];  in opt4001_read_raw()
277 		return -EINVAL;  in opt4001_read_raw()
293 		chip->int_time = int_time;  in opt4001_write_raw()
296 		return -EINVAL;  in opt4001_write_raw()
313 		return -EINVAL;  in opt4001_read_available()
325 	chip->int_time = OPT4001_DEFAULT_CONVERSION_TIME;  in opt4001_load_defaults()
383 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));  in opt4001_probe()
385 		return -ENOMEM;  in opt4001_probe()
389 	ret = devm_regulator_get_enable(&client->dev, "vdd");  in opt4001_probe()
391 		return dev_err_probe(&client->dev, ret, "Failed to enable vdd supply\n");  in opt4001_probe()
393 	chip->regmap = devm_regmap_init_i2c(client, &opt4001_regmap_config);  in opt4001_probe()
394 	if (IS_ERR(chip->regmap))  in opt4001_probe()
395 		return dev_err_probe(&client->dev, PTR_ERR(chip->regmap),  in opt4001_probe()
397 	chip->client = client;  in opt4001_probe()
399 	indio_dev->info = &opt4001_info_no_irq;  in opt4001_probe()
401 	ret = regmap_reinit_cache(chip->regmap, &opt4001_regmap_config);  in opt4001_probe()
403 		return dev_err_probe(&client->dev, ret,  in opt4001_probe()
406 	ret = regmap_read(chip->regmap, OPT4001_DEVICE_ID, &dev_id);  in opt4001_probe()
408 		return dev_err_probe(&client->dev, ret,  in opt4001_probe()
413 		dev_warn(&client->dev, "Device ID: %#04x unknown\n", dev_id);  in opt4001_probe()
415 	chip->chip_info = i2c_get_match_data(client);  in opt4001_probe()
417 	indio_dev->channels = opt4001_channels;  in opt4001_probe()
418 	indio_dev->num_channels = ARRAY_SIZE(opt4001_channels);  in opt4001_probe()
419 	indio_dev->modes = INDIO_DIRECT_MODE;  in opt4001_probe()
420 	indio_dev->name = chip->chip_info->name;  in opt4001_probe()
424 		return dev_err_probe(&client->dev, ret,  in opt4001_probe()
427 	ret = devm_add_action_or_reset(&client->dev,  in opt4001_probe()
431 		return dev_err_probe(&client->dev, ret,  in opt4001_probe()
434 	return devm_iio_device_register(&client->dev, indio_dev);  in opt4001_probe()
442 	{ "opt4001-sot-5x3", (kernel_ulong_t)&opt4001_sot_5x3_info },
443 	{ "opt4001-picostar", (kernel_ulong_t)&opt4001_picostar_info },
449 	{ .compatible = "ti,opt4001-sot-5x3", .data = &opt4001_sot_5x3_info},
450 	{ .compatible = "ti,opt4001-picostar", .data = &opt4001_picostar_info},
465 MODULE_AUTHOR("Stefan Windfeldt-Prytz <stefan.windfeldt-prytz@axis.com>");