topic [iMX8MP-EVK] PCA6146 as interrupt controller? in i.MX Processors

[iMX8MP-EVK] PCA6146 as interrupt controller?

khang_letruong — Wed, 30 Mar 2022 02:12:57 GMT

Dear Community,

I would like to know if there's any conflict to configure the IO Expander PCA6146 on 8MPLUSEVK as interrupt-controller (i.e. one of the P0_x or P1_x as input to generate interruption on GPIO1_IO12) since it is already used as gpio-controller, please?

Thanks in advance and best regards,

Khang

Re: [iMX8MP-EVK] PCA6146 as interrupt controller?

Zhiming_Liu — Fri, 01 Apr 2022 04:51:00 GMT

Hi @khang_letruong

There is no conflict from the reference design

Re: [iMX8MP-EVK] PCA6146 as interrupt controller?

khang_letruong — Fri, 01 Apr 2022 08:12:18 GMT

Hi @Zhiming_Liu ,

So do you confirm that it can be used as gpio-controller to control some outputs and interrupt-controller to receive some inputs to trigger to interruption to the SoC at the same time?

BR,
K