68 	int ret;  in lidar_read_byte()  local
75 	ret = i2c_smbus_write_byte(client, reg);  in lidar_read_byte()
76 	if (ret < 0) {  in lidar_read_byte()
78 		return ret;  in lidar_read_byte()
81 	ret = i2c_smbus_read_byte(client);  in lidar_read_byte()
82 	if (ret < 0)  in lidar_read_byte()
85 	return ret;  in lidar_read_byte()
95 	int ret;  in lidar_read_measurement()  local
98 	ret = lidar_read_byte(data, LIDAR_REG_DATA_HBYTE);  in lidar_read_measurement()
99 	if (ret < 0)  in lidar_read_measurement()
100 		return ret;  in lidar_read_measurement()
101 	val = ret << 8;  in lidar_read_measurement()
103 	ret = lidar_read_byte(data, LIDAR_REG_DATA_LBYTE);  in lidar_read_measurement()
104 	if (ret < 0)  in lidar_read_measurement()
105 		return ret;  in lidar_read_measurement()
107 	val |= ret;  in lidar_read_measurement()
117 	int ret;  in lidar_get_measurement()  local
120 	ret = lidar_write_control(data, LIDAR_REG_CONTROL_ACQUIRE);  in lidar_get_measurement()
121 	if (ret < 0) {  in lidar_get_measurement()
123 		return ret;  in lidar_get_measurement()
129 		ret = lidar_read_byte(data, LIDAR_REG_STATUS);  in lidar_get_measurement()
130 		if (ret < 0)  in lidar_get_measurement()
134 		if (ret & LIDAR_REG_STATUS_INVALID) {  in lidar_get_measurement()
136 			ret = -EINVAL;  in lidar_get_measurement()
141 		if (!(ret & LIDAR_REG_STATUS_READY)) {  in lidar_get_measurement()
142 			ret = lidar_read_measurement(data, reg);  in lidar_get_measurement()
145 		ret = -EIO;  in lidar_get_measurement()
148 	return ret;  in lidar_get_measurement()
156 	int ret = -EINVAL;  in lidar_read_raw()  local
161 		ret = -EBUSY;  in lidar_read_raw()
169 		ret = lidar_get_measurement(data, &reg);  in lidar_read_raw()
170 		if (!ret) {  in lidar_read_raw()
172 			ret = IIO_VAL_INT;  in lidar_read_raw()
179 		ret = IIO_VAL_INT_PLUS_MICRO;  in lidar_read_raw()
186 	return ret;  in lidar_read_raw()
194 	int ret;  in lidar_trigger_handler()  local
196 	ret = lidar_get_measurement(data, data->buffer);  in lidar_trigger_handler()
197 	if (!ret) {  in lidar_trigger_handler()
200 	} else if (ret != -EINVAL) {  in lidar_trigger_handler()
219 	int ret;  in lidar_probe()  local
237 	ret = iio_triggered_buffer_setup(indio_dev, NULL,  in lidar_probe()
239 	if (ret)  in lidar_probe()
240 		return ret;  in lidar_probe()
242 	ret = iio_device_register(indio_dev);  in lidar_probe()
243 	if (ret)  in lidar_probe()
251 	return ret;  in lidar_probe()