[PATCH v5 10/12] serial: 8250: add Ambarella UART driver

[zl020895]

Hi Andy,

Thanks for the confirmation. 
I will keep 8250_ambarella and update the commit message as you
suggested.

Best regards,
Long Zhao

At 2026-09-03 19:40:54, "Andy Shevchenko" <andriy.shevchenko at linux.intel.com> wrote:
>On Wed, Aug 19, 2026 at 02:31:59PM +0800, zl020895 wrote:
>> 
>> Thanks for the review.
>
>> This is Ambarella 8250-compatible IP, not Synopsys DesignWare. We
>> first tried 8250_dw after Linus asked us to move to the 8250 library;
>> you then told us not to touch 8250_dw and to use 8250_ambarella
>> instead. That is what this patch is.
>> Background:
>> https://lore.kernel.org/r/CAD++jLm6HzEU1TM-c=Vtjv3FJEBecVP7TyxSgq_Q0zF-YwT6NA@mail.gmail.com/
>> https://lore.kernel.org/linux-serial/an8KvvHWX0naH3Xw@ashevche-desk.local/
>> https://lore.kernel.org/linux-serial/7E774305-3920-4BB7-BA46-E0772D6BED84@ambarella.com/
>> I will also switch to uart_read_port_properties() and trim the
>> 8250_dw-derived boilerplate.
>
>Thanks for the register descriptions, it was helpful. After going through them
>it seems the v3 as you made it is good enough (sorry for going back and forth).
>What it needs is better commit message explaining that while it's not a Synopsys
>DW IP, it was made to be quite compatible with that (on register level) and hence
>no new driver is required, just a small quirk.
>
>-- 
>With Best Regards,
>Andy Shevchenko
>