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amassa
Contributor
Contributor
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Registered: ‎12-06-2018

Interrupt Handler not attaching in new Linux version

We have moved to the latest xlnx-linux git version. We have a driver that was able to attach and receive interrupts using the function request_irq and passing in 61 for the interrupt number.

Now since we have updated, we are unable to get interrupts because the request_irq function returns an error (-22).

I have searched through the numerous similar posts and have tried adding a devicetree entry such as

  driver: driver@60600000 {
   interrupt-parent = <&intc>;
   interrupts = <0 29 4>;
 };

However, this does not work either.

I am trying to get this to work on my custom board. But I have tested on the Zedboard as well and I am unable to get the request_irq to work on that board either.

Any help is appreciated if someone has been able to get this to work.

Thanks.

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