73 	int ret;  in lidar_i2c_xfer()  local
85 	ret = i2c_transfer(client->adapter, msg, 2);  in lidar_i2c_xfer()
87 	return (ret == 2) ? 0 : -EIO;  in lidar_i2c_xfer()
93 	int ret;  in lidar_smbus_xfer()  local
101 		ret = i2c_smbus_write_byte(client, reg++);  in lidar_smbus_xfer()
102 		if (ret < 0) {  in lidar_smbus_xfer()
104 			return ret;  in lidar_smbus_xfer()
107 		ret = i2c_smbus_read_byte(client);  in lidar_smbus_xfer()
108 		if (ret < 0) {  in lidar_smbus_xfer()
110 			return ret;  in lidar_smbus_xfer()
113 		*(val++) = ret;  in lidar_smbus_xfer()
121 	int ret;  in lidar_read_byte()  local
124 	ret = data->xfer(data, reg, &val, 1);  in lidar_read_byte()
125 	if (ret < 0)  in lidar_read_byte()
126 		return ret;  in lidar_read_byte()
145 	int ret = data->xfer(data, LIDAR_REG_DATA_HBYTE |  in lidar_read_measurement()  local
149 	if (!ret)  in lidar_read_measurement()
152 	return ret;  in lidar_read_measurement()
159 	int ret;  in lidar_get_measurement()  local
164 	ret = lidar_write_control(data, LIDAR_REG_CONTROL_ACQUIRE);  in lidar_get_measurement()
165 	if (ret < 0) {  in lidar_get_measurement()
168 		return ret;  in lidar_get_measurement()
174 		ret = lidar_read_byte(data, LIDAR_REG_STATUS);  in lidar_get_measurement()
175 		if (ret < 0)  in lidar_get_measurement()
179 		if (ret & LIDAR_REG_STATUS_INVALID) {  in lidar_get_measurement()
181 			ret = -EINVAL;  in lidar_get_measurement()
186 		if (!(ret & LIDAR_REG_STATUS_READY)) {  in lidar_get_measurement()
187 			ret = lidar_read_measurement(data, reg);  in lidar_get_measurement()
190 		ret = -EIO;  in lidar_get_measurement()
195 	return ret;  in lidar_get_measurement()
203 	int ret = -EINVAL;  in lidar_read_raw()  local
212 		ret = lidar_get_measurement(data, &reg);  in lidar_read_raw()
213 		if (!ret) {  in lidar_read_raw()
215 			ret = IIO_VAL_INT;  in lidar_read_raw()
223 		ret = IIO_VAL_INT_PLUS_MICRO;  in lidar_read_raw()
227 	return ret;  in lidar_read_raw()
235 	int ret;  in lidar_trigger_handler()  local
237 	ret = lidar_get_measurement(data, &data->scan.chan);  in lidar_trigger_handler()
238 	if (!ret) {  in lidar_trigger_handler()
241 	} else if (ret != -EINVAL) {  in lidar_trigger_handler()
259 	int ret;  in lidar_probe()  local
286 	ret = iio_triggered_buffer_setup(indio_dev, NULL,  in lidar_probe()
288 	if (ret)  in lidar_probe()
289 		return ret;  in lidar_probe()
291 	ret = iio_device_register(indio_dev);  in lidar_probe()
292 	if (ret)  in lidar_probe()
298 	ret = pm_runtime_set_active(&client->dev);  in lidar_probe()
299 	if (ret)  in lidar_probe()
309 	return ret;  in lidar_probe()
352 	int ret = lidar_write_power(data, 0);  in lidar_pm_runtime_resume()  local
357 	return ret;  in lidar_pm_runtime_resume()