Hi Trent, On Thu, Sep 20, 2018 at 07:18:27PM +0000, Trent Piepho wrote: > This is an attempt to solve the problem of binding spidev to a device on > a device-tree system. > ... Tested-by: Kyle Roeschley <kyle.roeschley@xxxxxx> I tried this patch series on a Xilinx Zynq Z-7020 based system running kernel 4.14 with your patches (which applied cleanly). Our device tree previously listed spidev in its compatible strings. With just this change, I see the warnings prints as expected. When I update my compatible strings to something new and create a udev rule to write to driver_override, the warnings no longer show up. Thanks very much for addressing this issue! -- Kyle Roeschley Software Engineer National Instruments