[PATCHv6] staging/iio/adc: change the MXS touchscreen driver implementation
From: Alexandre Belloni <hidden>
Date: 2014-02-24 14:26:58
Also in:
linux-iio, linux-input
Hi Juergen, On 24/02/2014 at 14:16:24 +0100, Juergen Beisert wrote :
Hi Alexandre,quoted
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 !
quoted hunk ↗ jump to hunk
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