On Thu, Jun 01, 2023 at 05:14:44PM +0300, Tony Lindgren wrote: > If a physical serial port device driver uses arch_initcall() we fail to > probe the serial_base_bus devices and the serial port tx fails. This is > because as serial_base_bus uses module_initcall(). > > Let's fix the issue by changing serial_base_bus to use arch_initcall(). This will only work if the linking order is such that this will always come before the drivers. Is that the case here? thanks, greg k-h