123 	int (*calibrate)(struct twl6030_gpadc_data *gpadc);
386 	struct twl6030_gpadc_data *gpadc = iio_priv(indio_dev);  in twl6030_gpadc_irq_handler()  local
388 	complete(&gpadc->irq_complete);  in twl6030_gpadc_irq_handler()
449 static int twl6030_gpadc_make_correction(struct twl6030_gpadc_data *gpadc,  in twl6030_gpadc_make_correction()  argument
452 	const struct twl6030_ideal_code *ideal = gpadc->pdata->ideal;  in twl6030_gpadc_make_correction()
456 	i = twl6030_gpadc_lookup(ideal, channel, gpadc->pdata->nchannels);  in twl6030_gpadc_make_correction()
458 		gpadc->twl6030_cal_tbl[i].offset_error) /  in twl6030_gpadc_make_correction()
459 		gpadc->twl6030_cal_tbl[i].gain_error;  in twl6030_gpadc_make_correction()
464 static int twl6030_gpadc_get_raw(struct twl6030_gpadc_data *gpadc,  in twl6030_gpadc_get_raw()  argument
467 	u8 reg = gpadc->pdata->channel_to_reg(channel);  in twl6030_gpadc_get_raw()
474 		dev_dbg(gpadc->dev, "unable to read register 0x%X\n", reg);  in twl6030_gpadc_get_raw()
479 	dev_dbg(gpadc->dev, "GPADC raw code: %d", raw_code);  in twl6030_gpadc_get_raw()
481 	if (twl6030_channel_calibrated(gpadc->pdata, channel))  in twl6030_gpadc_get_raw()
482 		*res = twl6030_gpadc_make_correction(gpadc, channel, raw_code);  in twl6030_gpadc_get_raw()
489 static int twl6030_gpadc_get_processed(struct twl6030_gpadc_data *gpadc,  in twl6030_gpadc_get_processed()  argument
492 	const struct twl6030_ideal_code *ideal = gpadc->pdata->ideal;  in twl6030_gpadc_get_processed()
498 	ret = twl6030_gpadc_get_raw(gpadc, channel, &corrected_code);  in twl6030_gpadc_get_processed()
502 	i = twl6030_gpadc_lookup(ideal, channel, gpadc->pdata->nchannels);  in twl6030_gpadc_get_processed()
504 			gpadc->twl6030_cal_tbl[i].gain;  in twl6030_gpadc_get_processed()
509 	dev_dbg(gpadc->dev, "GPADC corrected code: %d", corrected_code);  in twl6030_gpadc_get_processed()
510 	dev_dbg(gpadc->dev, "GPADC value: %d", channel_value);  in twl6030_gpadc_get_processed()
521 	struct twl6030_gpadc_data *gpadc = iio_priv(indio_dev);  in twl6030_gpadc_read_raw()  local
525 	mutex_lock(&gpadc->lock);  in twl6030_gpadc_read_raw()
527 	ret = gpadc->pdata->start_conversion(chan->channel);  in twl6030_gpadc_read_raw()
529 		dev_err(gpadc->dev, "failed to start conversion\n");  in twl6030_gpadc_read_raw()
534 				&gpadc->irq_complete, msecs_to_jiffies(5000));  in twl6030_gpadc_read_raw()
545 		ret = twl6030_gpadc_get_raw(gpadc, chan->channel, val);  in twl6030_gpadc_read_raw()
550 		ret = twl6030_gpadc_get_processed(gpadc, chan->channel, val);  in twl6030_gpadc_read_raw()
558 	mutex_unlock(&gpadc->lock);  in twl6030_gpadc_read_raw()
574 static void twl6030_calibrate_channel(struct twl6030_gpadc_data *gpadc,  in twl6030_calibrate_channel()  argument
578 	const struct twl6030_ideal_code *ideal = gpadc->pdata->ideal;  in twl6030_calibrate_channel()
580 	i = twl6030_gpadc_lookup(ideal, channel, gpadc->pdata->nchannels);  in twl6030_calibrate_channel()
595 	gpadc->twl6030_cal_tbl[i].gain = gain;  in twl6030_calibrate_channel()
596 	gpadc->twl6030_cal_tbl[i].gain_error = k;  in twl6030_calibrate_channel()
597 	gpadc->twl6030_cal_tbl[i].offset_error = b;  in twl6030_calibrate_channel()
599 	dev_dbg(gpadc->dev, "GPADC d1   for Chn: %d = %d\n", channel, d1);  in twl6030_calibrate_channel()
600 	dev_dbg(gpadc->dev, "GPADC d2   for Chn: %d = %d\n", channel, d2);  in twl6030_calibrate_channel()
601 	dev_dbg(gpadc->dev, "GPADC x1   for Chn: %d = %d\n", channel, x1);  in twl6030_calibrate_channel()
602 	dev_dbg(gpadc->dev, "GPADC x2   for Chn: %d = %d\n", channel, x2);  in twl6030_calibrate_channel()
603 	dev_dbg(gpadc->dev, "GPADC Gain for Chn: %d = %d\n", channel, gain);  in twl6030_calibrate_channel()
604 	dev_dbg(gpadc->dev, "GPADC k    for Chn: %d = %d\n", channel, k);  in twl6030_calibrate_channel()
605 	dev_dbg(gpadc->dev, "GPADC b    for Chn: %d = %d\n", channel, b);  in twl6030_calibrate_channel()
622 static int twl6030_calibration(struct twl6030_gpadc_data *gpadc)  in twl6030_calibration()  argument
639 		dev_err(gpadc->dev, "calibration failed\n");  in twl6030_calibration()
689 		twl6030_calibrate_channel(gpadc, chn, d1, d2);  in twl6030_calibration()
709 static int twl6032_calibration(struct twl6030_gpadc_data *gpadc)  in twl6032_calibration()  argument
718 		dev_err(gpadc->dev, "calibration failed\n");  in twl6032_calibration()
797 		twl6030_calibrate_channel(gpadc, chn, d1, d2);  in twl6032_calibration()
883 	struct twl6030_gpadc_data *gpadc;  in twl6030_gpadc_probe()  local
896 	indio_dev = devm_iio_device_alloc(dev, sizeof(*gpadc));  in twl6030_gpadc_probe()
900 	gpadc = iio_priv(indio_dev);  in twl6030_gpadc_probe()
902 	gpadc->twl6030_cal_tbl = devm_kzalloc(dev,  in twl6030_gpadc_probe()
903 					sizeof(*gpadc->twl6030_cal_tbl) *  in twl6030_gpadc_probe()
905 	if (!gpadc->twl6030_cal_tbl)  in twl6030_gpadc_probe()
908 	gpadc->dev = dev;  in twl6030_gpadc_probe()
909 	gpadc->pdata = pdata;  in twl6030_gpadc_probe()
912 	mutex_init(&gpadc->lock);  in twl6030_gpadc_probe()
913 	init_completion(&gpadc->irq_complete);  in twl6030_gpadc_probe()
915 	ret = pdata->calibrate(gpadc);  in twl6030_gpadc_probe()