109 	int (*calibrate)(struct twl6030_gpadc_data *gpadc);
372 	struct twl6030_gpadc_data *gpadc = iio_priv(indio_dev);  in twl6030_gpadc_irq_handler()  local
374 	complete(&gpadc->irq_complete);  in twl6030_gpadc_irq_handler()
435 static int twl6030_gpadc_make_correction(struct twl6030_gpadc_data *gpadc,  in twl6030_gpadc_make_correction()  argument
438 	const struct twl6030_ideal_code *ideal = gpadc->pdata->ideal;  in twl6030_gpadc_make_correction()
442 	i = twl6030_gpadc_lookup(ideal, channel, gpadc->pdata->nchannels);  in twl6030_gpadc_make_correction()
444 		gpadc->twl6030_cal_tbl[i].offset_error) /  in twl6030_gpadc_make_correction()
445 		gpadc->twl6030_cal_tbl[i].gain_error;  in twl6030_gpadc_make_correction()
450 static int twl6030_gpadc_get_raw(struct twl6030_gpadc_data *gpadc,  in twl6030_gpadc_get_raw()  argument
453 	u8 reg = gpadc->pdata->channel_to_reg(channel);  in twl6030_gpadc_get_raw()
460 		dev_dbg(gpadc->dev, "unable to read register 0x%X\n", reg);  in twl6030_gpadc_get_raw()
465 	dev_dbg(gpadc->dev, "GPADC raw code: %d", raw_code);  in twl6030_gpadc_get_raw()
467 	if (twl6030_channel_calibrated(gpadc->pdata, channel))  in twl6030_gpadc_get_raw()
468 		*res = twl6030_gpadc_make_correction(gpadc, channel, raw_code);  in twl6030_gpadc_get_raw()
475 static int twl6030_gpadc_get_processed(struct twl6030_gpadc_data *gpadc,  in twl6030_gpadc_get_processed()  argument
478 	const struct twl6030_ideal_code *ideal = gpadc->pdata->ideal;  in twl6030_gpadc_get_processed()
484 	ret = twl6030_gpadc_get_raw(gpadc, channel, &corrected_code);  in twl6030_gpadc_get_processed()
488 	i = twl6030_gpadc_lookup(ideal, channel, gpadc->pdata->nchannels);  in twl6030_gpadc_get_processed()
490 			gpadc->twl6030_cal_tbl[i].gain;  in twl6030_gpadc_get_processed()
495 	dev_dbg(gpadc->dev, "GPADC corrected code: %d", corrected_code);  in twl6030_gpadc_get_processed()
496 	dev_dbg(gpadc->dev, "GPADC value: %d", channel_value);  in twl6030_gpadc_get_processed()
507 	struct twl6030_gpadc_data *gpadc = iio_priv(indio_dev);  in twl6030_gpadc_read_raw()  local
511 	mutex_lock(&gpadc->lock);  in twl6030_gpadc_read_raw()
513 	ret = gpadc->pdata->start_conversion(chan->channel);  in twl6030_gpadc_read_raw()
515 		dev_err(gpadc->dev, "failed to start conversion\n");  in twl6030_gpadc_read_raw()
520 				&gpadc->irq_complete, msecs_to_jiffies(5000));  in twl6030_gpadc_read_raw()
531 		ret = twl6030_gpadc_get_raw(gpadc, chan->channel, val);  in twl6030_gpadc_read_raw()
536 		ret = twl6030_gpadc_get_processed(gpadc, chan->channel, val);  in twl6030_gpadc_read_raw()
544 	mutex_unlock(&gpadc->lock);  in twl6030_gpadc_read_raw()
560 static void twl6030_calibrate_channel(struct twl6030_gpadc_data *gpadc,  in twl6030_calibrate_channel()  argument
564 	const struct twl6030_ideal_code *ideal = gpadc->pdata->ideal;  in twl6030_calibrate_channel()
566 	i = twl6030_gpadc_lookup(ideal, channel, gpadc->pdata->nchannels);  in twl6030_calibrate_channel()
581 	gpadc->twl6030_cal_tbl[i].gain = gain;  in twl6030_calibrate_channel()
582 	gpadc->twl6030_cal_tbl[i].gain_error = k;  in twl6030_calibrate_channel()
583 	gpadc->twl6030_cal_tbl[i].offset_error = b;  in twl6030_calibrate_channel()
585 	dev_dbg(gpadc->dev, "GPADC d1   for Chn: %d = %d\n", channel, d1);  in twl6030_calibrate_channel()
586 	dev_dbg(gpadc->dev, "GPADC d2   for Chn: %d = %d\n", channel, d2);  in twl6030_calibrate_channel()
587 	dev_dbg(gpadc->dev, "GPADC x1   for Chn: %d = %d\n", channel, x1);  in twl6030_calibrate_channel()
588 	dev_dbg(gpadc->dev, "GPADC x2   for Chn: %d = %d\n", channel, x2);  in twl6030_calibrate_channel()
589 	dev_dbg(gpadc->dev, "GPADC Gain for Chn: %d = %d\n", channel, gain);  in twl6030_calibrate_channel()
590 	dev_dbg(gpadc->dev, "GPADC k    for Chn: %d = %d\n", channel, k);  in twl6030_calibrate_channel()
591 	dev_dbg(gpadc->dev, "GPADC b    for Chn: %d = %d\n", channel, b);  in twl6030_calibrate_channel()
608 static int twl6030_calibration(struct twl6030_gpadc_data *gpadc)  in twl6030_calibration()  argument
625 		dev_err(gpadc->dev, "calibration failed\n");  in twl6030_calibration()
675 		twl6030_calibrate_channel(gpadc, chn, d1, d2);  in twl6030_calibration()
695 static int twl6032_calibration(struct twl6030_gpadc_data *gpadc)  in twl6032_calibration()  argument
704 		dev_err(gpadc->dev, "calibration failed\n");  in twl6032_calibration()
783 		twl6030_calibrate_channel(gpadc, chn, d1, d2);  in twl6032_calibration()
868 	struct twl6030_gpadc_data *gpadc;  in twl6030_gpadc_probe()  local
881 	indio_dev = devm_iio_device_alloc(dev, sizeof(*gpadc));  in twl6030_gpadc_probe()
885 	gpadc = iio_priv(indio_dev);  in twl6030_gpadc_probe()
887 	gpadc->twl6030_cal_tbl = devm_kcalloc(dev,  in twl6030_gpadc_probe()
889 					sizeof(*gpadc->twl6030_cal_tbl),  in twl6030_gpadc_probe()
891 	if (!gpadc->twl6030_cal_tbl)  in twl6030_gpadc_probe()
894 	gpadc->dev = dev;  in twl6030_gpadc_probe()
895 	gpadc->pdata = pdata;  in twl6030_gpadc_probe()
898 	mutex_init(&gpadc->lock);  in twl6030_gpadc_probe()
899 	init_completion(&gpadc->irq_complete);  in twl6030_gpadc_probe()
901 	ret = pdata->calibrate(gpadc);  in twl6030_gpadc_probe()