70 	int ret;  in sps30_write_then_read()  local
76 	ret = i2c_master_send(state->client, txbuf, txsize);  in sps30_write_then_read()
77 	if (ret != txsize)  in sps30_write_then_read()
78 		return ret < 0 ? ret : -EIO;  in sps30_write_then_read()
83 	ret = i2c_master_recv(state->client, rxbuf, rxsize);  in sps30_write_then_read()
84 	if (ret != rxsize)  in sps30_write_then_read()
85 		return ret < 0 ? ret : -EIO;  in sps30_write_then_read()
104 	int i, ret = 0;  in sps30_do_cmd()  local
111 		ret = sps30_write_then_read(state, buf, 5, NULL, 0);  in sps30_do_cmd()
116 		ret = sps30_write_then_read(state, buf, 2, NULL, 0);  in sps30_do_cmd()
127 		ret = sps30_write_then_read(state, buf, 2, buf, size);  in sps30_do_cmd()
136 		ret = sps30_write_then_read(state, buf, 8, NULL, 0);  in sps30_do_cmd()
140 	if (ret)  in sps30_do_cmd()
141 		return ret;  in sps30_do_cmd()
191 	int i, ret, tries = 5;  in sps30_do_meas()  local
195 		ret = sps30_do_cmd(state, SPS30_START_MEAS, NULL, 0);  in sps30_do_meas()
196 		if (ret)  in sps30_do_meas()
197 			return ret;  in sps30_do_meas()
203 		ret = sps30_do_cmd(state, SPS30_READ_DATA_READY_FLAG, tmp, 2);  in sps30_do_meas()
204 		if (ret)  in sps30_do_meas()
217 	ret = sps30_do_cmd(state, SPS30_READ_DATA, tmp, sizeof(int) * size);  in sps30_do_meas()
218 	if (ret)  in sps30_do_meas()
219 		return ret;  in sps30_do_meas()
232 	int ret;  in sps30_trigger_handler()  local
239 	ret = sps30_do_meas(state, scan.data, ARRAY_SIZE(scan.data));  in sps30_trigger_handler()
241 	if (ret)  in sps30_trigger_handler()
257 	int data[4], ret = -EINVAL;  in sps30_read_raw()  local
267 				ret = sps30_do_meas(state, data, 1);  in sps30_read_raw()
270 				ret = sps30_do_meas(state, data, 2);  in sps30_read_raw()
273 				ret = sps30_do_meas(state, data, 3);  in sps30_read_raw()
276 				ret = sps30_do_meas(state, data, 4);  in sps30_read_raw()
280 			if (ret)  in sps30_read_raw()
281 				return ret;  in sps30_read_raw()
315 	int ret;  in sps30_do_cmd_reset()  local
317 	ret = sps30_do_cmd(state, SPS30_RESET, NULL, 0);  in sps30_do_cmd_reset()
328 	return ret;  in sps30_do_cmd_reset()
337 	int val, ret;  in start_cleaning_store()  local
343 	ret = sps30_do_cmd(state, SPS30_START_FAN_CLEANING, NULL, 0);  in start_cleaning_store()
345 	if (ret)  in start_cleaning_store()
346 		return ret;  in start_cleaning_store()
358 	int ret;  in cleaning_period_show()  local
361 	ret = sps30_do_cmd(state, SPS30_READ_AUTO_CLEANING_PERIOD, tmp, 4);  in cleaning_period_show()
363 	if (ret)  in cleaning_period_show()
364 		return ret;  in cleaning_period_show()
375 	int val, ret;  in cleaning_period_store()  local
388 	ret = sps30_do_cmd(state, SPS30_AUTO_CLEANING_PERIOD, tmp, 0);  in cleaning_period_store()
389 	if (ret) {  in cleaning_period_store()
391 		return ret;  in cleaning_period_store()
400 	ret = sps30_do_cmd_reset(state);  in cleaning_period_store()
401 	if (ret)  in cleaning_period_store()
477 	int ret;  in sps30_probe()  local
500 	ret = sps30_do_cmd_reset(state);  in sps30_probe()
501 	if (ret) {  in sps30_probe()
503 		return ret;  in sps30_probe()
506 	ret = sps30_do_cmd(state, SPS30_READ_SERIAL, buf, sizeof(buf));  in sps30_probe()
507 	if (ret) {  in sps30_probe()
509 		return ret;  in sps30_probe()
514 	ret = devm_add_action_or_reset(&client->dev, sps30_stop_meas, state);  in sps30_probe()
515 	if (ret)  in sps30_probe()
516 		return ret;  in sps30_probe()
518 	ret = devm_iio_triggered_buffer_setup(&client->dev, indio_dev, NULL,  in sps30_probe()
520 	if (ret)  in sps30_probe()
521 		return ret;  in sps30_probe()