Hi Marc, I modified devm_gpiod_get_optional() in mcp251xfd_probe() to look for "rx-int" instead of "microchip,rx-int". Is there a reason it was looking for "microchip,rx-int"? I am using branch v5.4-rpi/mcp251xfd-20201022-54 at commit 9e02abd4fe59. While it does now see the property, it does run into this issue: [ 6.830900] mcp251xfd spi0.0 (unnamed net_device) (uninitialized): RX_INT active after softreset, disabling RX_INT support. Any suggestions as to how to troubleshoot this? Thanks, Drew