Hi Juergen, On 24/02/2014 at 14:16:24 +0100, Juergen Beisert wrote : > Hi Alexandre, > > > While I don't have much experience with the TS part of the code but I > > can investigate if you don't have any idea. > > can you please test the following patch? > After releasing the touchscreen the internal state machine was left in a > wrong state. > This seems to solve the issue. You can send the patch with my Tested-by. It is probably worth trying to get it in 3.14. Thanks ! > diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c > index e2dd783..558a76c 100644 > --- a/drivers/staging/iio/adc/mxs-lradc.c > +++ b/drivers/staging/iio/adc/mxs-lradc.c > @@ -698,6 +698,7 @@ static void mxs_lradc_finish_touch_event(struct mxs_lradc *lradc, bool valid) > } > > /* if it is released, wait for the next touch via IRQ */ > + lradc->cur_plate = LRADC_TOUCH; > mxs_lradc_reg_clear(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ, LRADC_CTRL1); > mxs_lradc_reg_set(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ_EN, LRADC_CTRL1); > } > > Regards, > Juergen > > -- > Pengutronix e.K. | Juergen Beisert | > Linux Solutions for Science and Industry | Phone: +49-5121-206917-5128 | > Peiner Str. 6-8, 31137 Hildesheim, Germany | Fax: +49-5121-206917-5555 | > Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de/ | -- Alexandre Belloni, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
