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It doesn't appear the driver supports this configuration. > Is that accurate to your knowledge ? > > If the drivers doesn't support some type of polling mode, is Xilinx willing to accept > changes which would make the driver compatible with a polling mode if an > interrupt is not supplied thru the device tree ? > > It seems like it makes sense the driver should support a polling mode because > Xilinx customers may make a product where the interrupt line doesn't function > properly. In that case the customer would need a contingency which could be > polling for interrupts. Not sure what that change means but if you don't connect IRQ in design I expect vivado removes the whole logic around it at synthesis time. Anyway using this IP without IRQ is perfectly valid use case and no issue from my side to also support it in the kernel. Thanks, Michal