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Commit fa45255e authored by Markus Pargmann's avatar Markus Pargmann Committed by Dmitry Torokhov
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Input: wm9712 - fix return code for wrong sample 



Instead of interpreting a wrong measurement as pen up, we should
try to read again.

Based on wm9712: pen up by Teresa Gámez and Christian Hemp.

Signed-off-by: default avatarMarkus Pargmann <mpa@pengutronix.de>
Acked-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent cfd5d096

drivers/input/touchscreen/wm9712.c

+1 −1
Original line number Diff line number Diff line
@@ -298,7 +298,7 @@ static int wm9712_poll_sample(struct wm97xx *wm, int adcsel, int *sample) 
		dev_dbg(wm->dev, "adc wrong sample, wanted %x got %x",

			adcsel & WM97XX_ADCSEL_MASK,

			*sample & WM97XX_ADCSEL_MASK);

		return RC_PENUP;

		return RC_AGAIN;

	}



	if (wants_pen && !(*sample & WM97XX_PEN_DOWN)) {