iio/light/si1145.c

204 	int ret;
206 	ret = i2c_smbus_write_byte_data(data->client, SI1145_REG_COMMAND,
208 	if (ret < 0)
209 		return ret;
214 		ret = i2c_smbus_read_byte_data(data->client,
216 		if (ret <= 0)
217 			return ret;
239 	int ret;
244 		ret = __si1145_command_reset(data);
245 		if (ret < 0) {
246 			dev_err(dev, "failed to reset command counter, ret=%d\n",
247 				ret);
253 	ret = i2c_smbus_write_byte_data(data->client, SI1145_REG_COMMAND, cmd);
254 	if (ret) {
255 		dev_warn(dev, "failed to write command, ret=%d\n", ret);
263 		ret = i2c_smbus_read_byte_data(data->client,
265 		if (ret < 0) {
266 			dev_warn(dev, "failed to read response, ret=%d\n", ret);
270 		if ((ret & ~SI1145_RSP_COUNTER_MASK) == 0) {
271 			if (ret == data->rsp_seq) {
275 					ret = -ETIMEDOUT;
281 			if (ret == ((data->rsp_seq + 1) &
283 				data->rsp_seq = ret;
284 				ret = 0;
288 				 ret, (data->rsp_seq + 1) &
290 			ret = -EIO;
292 			if (ret == SI1145_RSP_INVALID_SETTING) {
295 				ret = -EINVAL;
298 				dev_dbg(dev, "overflow, ret=%d, cmd=0x%02x\n",
299 					ret, cmd);
300 				ret = -EOVERFLOW;
312 	return ret;
318 	int ret;
320 	ret = i2c_smbus_write_byte_data(data->client,
322 	if (ret < 0)
323 		return ret;
336 	int ret;
338 	ret = si1145_command(data, SI1145_CMD_PARAM_QUERY | (param & 0x1F));
339 	if (ret < 0)
340 		return ret;
422 	int ret = 0;
431 		ret = si1145_set_meas_rate(data, meas_rate);
432 		if (ret)
443 	return ret;
452 	int ret;
456 		ret = si1145_command(data, SI1145_CMD_PSALS_FORCE);
457 		if (ret < 0 && ret != -EOVERFLOW)
460 		irq_status = ret = i2c_smbus_read_byte_data(data->client,
462 		if (ret < 0)
481 		ret = i2c_smbus_read_i2c_block_data_or_emulated(
484 		if (ret < 0)
491 		ret = i2c_smbus_write_byte_data(data->client,
494 		if (ret < 0)
510 	int ret;
545 				ret = si1145_param_set(data,
547 				if (ret < 0)
548 					return ret;
556 	ret = si1145_param_set(data, SI1145_PARAM_CHLIST, reg);
558 	return ret < 0 ? ret : 0;
566 	int ret;
568 	ret = si1145_set_chlist(indio_dev, BIT(chan->scan_index));
569 	if (ret < 0)
570 		return ret;
574 	ret = si1145_command(data, cmd);
575 	if (ret < 0 && ret != -EOVERFLOW)
576 		return ret;
626 	int ret;
637 			ret = iio_device_claim_direct_mode(indio_dev);
638 			if (ret)
639 				return ret;
640 			ret = si1145_measure(indio_dev, chan);
643 			if (ret < 0)
644 				return ret;
646 			*val = ret;
650 			ret = i2c_smbus_read_byte_data(data->client,
652 			if (ret < 0)
653 				return ret;
655 			*val = (ret >> SI1145_PS_LED_SHIFT(chan->channel))
685 		ret = si1145_param_query(data, reg);
686 		if (ret < 0)
687 			return ret;
689 		*val = si1145_scale_from_adcgain(ret & 0x07);
707 			ret = si1145_param_query(data, SI1145_PARAM_ADC_OFFSET);
708 			if (ret < 0)
709 				return ret;
710 			*val = -si1145_uncompress(ret);
726 	int ret;
754 		ret = iio_device_claim_direct_mode(indio_dev);
755 		if (ret)
756 			return ret;
758 		ret = si1145_param_set(data, reg1, val);
759 		if (ret < 0) {
761 			return ret;
764 		ret = si1145_param_set(data, reg2, (~val & 0x07) << 4);
766 		return ret;
777 		ret = iio_device_claim_direct_mode(indio_dev);
778 		if (ret)
779 			return ret;
781 		ret = i2c_smbus_read_byte_data(data->client, reg1);
782 		if (ret < 0) {
784 			return ret;
786 		ret = i2c_smbus_write_byte_data(data->client, reg1,
787 			(ret & ~(0x0f << shift)) |
790 		return ret;
1015 	int ret;
1017 	ret = i2c_smbus_write_byte_data(client, SI1145_REG_COMMAND,
1019 	if (ret < 0)
1020 		return ret;
1024 	ret = i2c_smbus_write_byte_data(client, SI1145_REG_HW_KEY, 0x17);
1025 	if (ret < 0)
1026 		return ret;
1030 	ret = si1145_set_meas_rate(data, 0);
1031 	if (ret < 0)
1032 		return ret;
1035 	ret = si1145_store_samp_freq(data, 10);
1036 	if (ret < 0)
1037 		return ret;
1042 		ret = i2c_smbus_write_byte_data(client,
1045 		if (ret < 0)
1046 			return ret;
1049 		ret = i2c_smbus_write_byte_data(client,
1055 		ret = i2c_smbus_write_byte_data(client,
1060 		ret = 0;
1063 	if (ret < 0)
1064 		return ret;
1067 	ret = si1145_param_set(data, SI1145_PARAM_PS_ADC_MISC,
1069 	if (ret < 0)
1070 		return ret;
1072 	ret = si1145_param_set(data, SI1145_PARAM_PS_ADC_GAIN, 0x01);
1073 	if (ret < 0)
1074 		return ret;
1077 	ret = si1145_param_set(data, SI1145_PARAM_PS_ADC_COUNTER, 0x06 << 4);
1078 	if (ret < 0)
1079 		return ret;
1082 	ret = si1145_param_set(data, SI1145_PARAM_ALSVIS_ADC_MISC,
1084 	if (ret < 0)
1085 		return ret;
1087 	ret = si1145_param_set(data, SI1145_PARAM_ALSVIS_ADC_GAIN, 0x03);
1088 	if (ret < 0)
1089 		return ret;
1091 	ret = si1145_param_set(data, SI1145_PARAM_ALSVIS_ADC_COUNTER,
1093 	if (ret < 0)
1094 		return ret;
1097 	ret = si1145_param_set(data, SI1145_PARAM_ALSIR_ADC_MISC,
1099 	if (ret < 0)
1100 		return ret;
1102 	ret = si1145_param_set(data, SI1145_PARAM_ALSIR_ADC_GAIN, 0x01);
1103 	if (ret < 0)
1104 		return ret;
1106 	ret = si1145_param_set(data, SI1145_PARAM_ALSIR_ADC_COUNTER,
1108 	if (ret < 0)
1109 		return ret;
1119 		ret = i2c_smbus_write_byte_data(data->client,
1122 		if (ret < 0)
1123 			return ret;
1124 		ret = i2c_smbus_write_byte_data(data->client,
1126 		if (ret < 0)
1127 			return ret;
1128 		ret = i2c_smbus_write_byte_data(data->client,
1130 		if (ret < 0)
1131 			return ret;
1132 		ret = i2c_smbus_write_byte_data(data->client,
1134 		if (ret < 0)
1135 			return ret;
1149 	int ret;
1152 	ret = si1145_set_chlist(indio_dev, *indio_dev->active_scan_mask);
1155 	return ret;
1189 	int err = 0, ret;
1212 		ret = si1145_command(data, SI1145_CMD_PSALS_PAUSE);
1213 		if (ret < 0 && !err)
1214 			err = ret;
1215 		ret = si1145_set_meas_rate(data, 0);
1216 		if (ret < 0 && !err)
1217 			err = ret;
1218 		ret = i2c_smbus_write_byte_data(data->client,
1220 		if (ret < 0 && !err)
1221 			err = ret;
1222 		ret = i2c_smbus_write_byte_data(data->client,
1224 		if (ret < 0 && !err)
1225 			err = ret;
1242 	int ret;
1252 	ret = devm_request_irq(&client->dev, client->irq,
1257 	if (ret < 0) {
1259 		return ret;
1262 	ret = devm_iio_trigger_register(&client->dev, trig);
1263 	if (ret)
1264 		return ret;
1278 	int ret;
1289 	part_id = ret = i2c_smbus_read_byte_data(data->client,
1291 	if (ret < 0)
1292 		return ret;
1293 	rev_id = ret = i2c_smbus_read_byte_data(data->client,
1295 	if (ret < 0)
1296 		return ret;
1297 	seq_id = ret = i2c_smbus_read_byte_data(data->client,
1299 	if (ret < 0)
1300 		return ret;
1318 	ret = si1145_initialize(data);
1319 	if (ret < 0)
1320 		return ret;
1322 	ret = devm_iio_triggered_buffer_setup(&client->dev,
1325 	if (ret < 0)
1326 		return ret;
1329 		ret = si1145_probe_trigger(indio_dev);
1330 		if (ret < 0)
1331 			return ret;