350 				  bool *bipolar, bool *differential)  in ad7606_get_chan_config()  argument
358 	*bipolar = false;  in ad7606_get_chan_config()
379 		*bipolar = fwnode_property_read_bool(child, "bipolar");  in ad7606_get_chan_config()
392 		if (*differential && !*bipolar) {  in ad7606_get_chan_config()
394 				"'bipolar' must be added for diff channel %d\n",  in ad7606_get_chan_config()
410 	bool bipolar, differential;  in ad7606c_18bit_chan_scale_setup()  local
420 	ret = ad7606_get_chan_config(indio_dev, ch, &bipolar, &differential);  in ad7606c_18bit_chan_scale_setup()
428 		/* Bipolar differential ranges start at 8 (b1000) */  in ad7606c_18bit_chan_scale_setup()
439 	if (bipolar) {  in ad7606c_18bit_chan_scale_setup()
443 		/* Bipolar single-ended ranges start at 0 (b0000) */  in ad7606c_18bit_chan_scale_setup()
467 	bool bipolar, differential;  in ad7606c_16bit_chan_scale_setup()  local
477 	ret = ad7606_get_chan_config(indio_dev, ch, &bipolar, &differential);  in ad7606c_16bit_chan_scale_setup()
485 		/* Bipolar differential ranges start at 8 (b1000) */  in ad7606c_16bit_chan_scale_setup()
497 	if (bipolar) {  in ad7606c_16bit_chan_scale_setup()
501 		/* Bipolar single-ended ranges start at 0 (b0000) */  in ad7606c_16bit_chan_scale_setup()