155 static int us5182d_get_als(struct us5182d_data *data)  in us5182d_get_als()  argument
160 	ret = i2c_smbus_read_word_data(data->client,  in us5182d_get_als()
165 	result = ret * data->ga / US5182D_GA_RESOLUTION;  in us5182d_get_als()
172 static int us5182d_set_opmode(struct us5182d_data *data, u8 mode)  in us5182d_set_opmode()  argument
176 	ret = i2c_smbus_read_byte_data(data->client, US5182D_REG_CFG0);  in us5182d_set_opmode()
195 	ret = i2c_smbus_write_byte_data(data->client, US5182D_REG_CFG0, ret);  in us5182d_set_opmode()
199 	if (mode == data->opmode)  in us5182d_set_opmode()
202 	ret = i2c_smbus_write_byte_data(data->client, US5182D_REG_MODE_STORE,  in us5182d_set_opmode()
207 	data->opmode = mode;  in us5182d_set_opmode()
217 	struct us5182d_data *data = iio_priv(indio_dev);  in us5182d_read_raw()  local
224 			mutex_lock(&data->lock);  in us5182d_read_raw()
225 			ret = us5182d_set_opmode(data, US5182D_OPMODE_ALS);  in us5182d_read_raw()
229 			ret = us5182d_get_als(data);  in us5182d_read_raw()
232 			mutex_unlock(&data->lock);  in us5182d_read_raw()
236 			mutex_lock(&data->lock);  in us5182d_read_raw()
237 			ret = us5182d_set_opmode(data, US5182D_OPMODE_PX);  in us5182d_read_raw()
241 			ret = i2c_smbus_read_word_data(data->client,  in us5182d_read_raw()
245 			mutex_unlock(&data->lock);  in us5182d_read_raw()
253 		ret = i2c_smbus_read_byte_data(data->client, US5182D_REG_CFG1);  in us5182d_read_raw()
267 	mutex_unlock(&data->lock);  in us5182d_read_raw()
280 static int us5182d_update_dark_th(struct us5182d_data *data, int index)  in us5182d_update_dark_th()  argument
282 	__be16 dark_th = cpu_to_be16(data->us5182d_dark_ths[index]);  in us5182d_update_dark_th()
285 	ret = i2c_smbus_write_byte_data(data->client, US5182D_REG_UDARK_TH,  in us5182d_update_dark_th()
290 	return i2c_smbus_write_byte_data(data->client, US5182D_REG_UDARK_TH + 1,  in us5182d_update_dark_th()
302 static int us5182d_apply_scale(struct us5182d_data *data, int index)  in us5182d_apply_scale()  argument
306 	ret = i2c_smbus_read_byte_data(data->client, US5182D_REG_CFG1);  in us5182d_apply_scale()
313 	ret = i2c_smbus_write_byte_data(data->client, US5182D_REG_CFG1, ret);  in us5182d_apply_scale()
317 	return us5182d_update_dark_th(data, index);  in us5182d_apply_scale()
324 	struct us5182d_data *data = iio_priv(indio_dev);  in us5182d_write_raw()  local
333 				mutex_lock(&data->lock);  in us5182d_write_raw()
334 				ret = us5182d_apply_scale(data, i);  in us5182d_write_raw()
335 				mutex_unlock(&data->lock);  in us5182d_write_raw()
355 	struct us5182d_data *data = iio_priv(indio_dev);  in us5182d_reset()  local
357 	return i2c_smbus_write_byte_data(data->client, US5182D_REG_CFG3,  in us5182d_reset()
363 	struct us5182d_data *data = iio_priv(indio_dev);  in us5182d_init()  local
370 	data->opmode = 0;  in us5182d_init()
372 		ret = i2c_smbus_write_byte_data(data->client,  in us5182d_init()
384 	struct us5182d_data *data = iio_priv(indio_dev);  in us5182d_get_platform_data()  local
386 	if (device_property_read_u32(&data->client->dev, "upisemi,glass-coef",  in us5182d_get_platform_data()
387 				     &data->ga))  in us5182d_get_platform_data()
388 		data->ga = US5182D_GA_RESOLUTION;  in us5182d_get_platform_data()
389 	if (device_property_read_u16_array(&data->client->dev,  in us5182d_get_platform_data()
391 					   data->us5182d_dark_ths,  in us5182d_get_platform_data()
393 		data->us5182d_dark_ths = us5182d_dark_ths_vals;  in us5182d_get_platform_data()
394 	if (device_property_read_u8(&data->client->dev,  in us5182d_get_platform_data()
396 				    &data->upper_dark_gain))  in us5182d_get_platform_data()
397 		data->upper_dark_gain = US5182D_REG_AUTO_HDARK_GAIN_DEFAULT;  in us5182d_get_platform_data()
398 	if (device_property_read_u8(&data->client->dev,  in us5182d_get_platform_data()
400 				    &data->lower_dark_gain))  in us5182d_get_platform_data()
401 		data->lower_dark_gain = US5182D_REG_AUTO_LDARK_GAIN_DEFAULT;  in us5182d_get_platform_data()
406 	struct us5182d_data *data = iio_priv(indio_dev);  in us5182d_dark_gain_config()  local
409 	ret = us5182d_update_dark_th(data, US5182D_CFG1_AGAIN_DEFAULT);  in us5182d_dark_gain_config()
413 	ret = i2c_smbus_write_byte_data(data->client,  in us5182d_dark_gain_config()
415 					data->lower_dark_gain);  in us5182d_dark_gain_config()
419 	ret = i2c_smbus_write_byte_data(data->client,  in us5182d_dark_gain_config()
421 					data->upper_dark_gain);  in us5182d_dark_gain_config()
425 	return i2c_smbus_write_byte_data(data->client, US5182D_REG_DARK_AUTO_EN,  in us5182d_dark_gain_config()
432 	struct us5182d_data *data;  in us5182d_probe()  local
436 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));  in us5182d_probe()
440 	data = iio_priv(indio_dev);  in us5182d_probe()
442 	data->client = client;  in us5182d_probe()
444 	mutex_init(&data->lock);  in us5182d_probe()
453 	ret = i2c_smbus_read_byte_data(data->client, US5182D_REG_CHIPID);  in us5182d_probe()
455 		dev_err(&data->client->dev,  in us5182d_probe()