Jetson TX2: TCA9539 device tree reference for interrupt


We have developed a dual channel video card by help of jetson Tx-2 Eval board design. So for interrupt we are using TCA9539 GPIO Expander.

As I can see that in attached schematic U28.19 and U28.20 is configured as input and use for interrupt.

I downloaded L4T and tried to understand interrupt implementation in the device tree but did not found any reference for the same.

Please provided reference device tree source file where i can configure TCA9539 pins as input and used for interrupt purpose.

Looking forward for your kind support.

Thanks and Regards,
Vikas Dwivedi

hello vikas.wfh,

please refer to Topic 154412 for an example of interrupt gpio.