On Fri, 10 Feb 2023, Chia-Wei Wang wrote: > Add the driver for Aspeed UART/VUART devices, which are 16550A > compatible. It is an wrapper to cover the generic 16550A operation > while exetending DMA feature for the devices. > > Signed-off-by: Chia-Wei Wang <chiawei_wang@xxxxxxxxxxxxxx> > --- > drivers/tty/serial/8250/8250_aspeed.c | 502 ++++++++++++++++++++++++++ > drivers/tty/serial/8250/Kconfig | 8 + > drivers/tty/serial/8250/Makefile | 1 + Hi, Before I look any further into this, could you please explain why this is made to be entirely separate from what we have in drivers/tty/serial/8250/8250_aspeed_vuart.c ? I quickly went through some functions and they've significant parts in common with no variations at all in many functions and you're defines are 1:1 too (except for the DMA buf sizes). It would seem much better to add the missing functionality into 8250_aspeed_vuart.c rather than creating something from scratch with large overlap with existing code. If you intend to keep it as a separate one, you should have a rather good justification for it. -- i.