Re: [PATCH v2 3/6] dt-bindings: input: cypress,tt21000 - fix interrupt type in dts example

[Maximilian Weigand]

Hi,

On 02.05.23 02:24, Dmitry Torokhov wrote:
> On Mon, May 01, 2023 at 01:30:07PM +0200, Maximilian Weigand wrote:
>> Triggering the interrupt of the IRQ_TYPE_LEVEL_LOW type can lead to
>> probing issues with the device for the current driver (encountered on
>> the Pine64 PineNote). Basically the interrupt would be triggered before
>> certain commands were sent to the device, leading to a race between the
>> device responding fast enough and the irq handler fetching a data frame
>> from it. Actually all devices currently using the driver already use a
>> falling edge trigger.
> 
> I'd prefer we adjusted the driver to handle level interrupts properly.

Ok, I will have a look at that. Just to be clear: The driver should work
only with level interrupts, or should it optimally support both level
and falling edge triggers?

Thanks and best regards

Maximilian