[PATCHv6] staging/iio/adc: change the MXS touchscreen driver implementation

[Jonathan Cameron]

On February 24, 2014 2:26:58 PM GMT+00:00, Alexandre Belloni <alexandre.belloni at free-electrons.com> wrote:
>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.
Definitely. There is time.
>
>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
>> 
>> -- 
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