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IMX8 & Goodix GT911 touchscreen

Question asked by Oliver James on Aug 15, 2019
Latest reply on Aug 22, 2019 by Oliver James

Hi,

 

I'm currently trying to use a goodix gt911 touchscreen with our IMX8mq-evk.

 

I'm using the goodix driver from the mainline linux kernel and have configured the device tree to use the required pins but the gt911 will not respond causing the driver to fail with:

 

 

I can perform the same operations using usermode i2ctransfer and the controller responds correctly, I've also hooked up a logic scope to the reset and interrupt lines and they behave as expected.

 

Does anyone have any insight into what could be causing the issue?

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