Hi Ilpo, Andy,
On Mon, Dec 04, 2023 at 03:29:35PM +0200, Andy Shevchenko wrote:
> On Mon, Dec 04, 2023 at 03:20:09PM +0200, Ilpo Järvinen wrote:
> > On Mon, 4 Dec 2023, Dawei Li wrote:
> >
> > > DW apb uart databook defines couples of configuration parameters of
>
> DW_apb_uart (as it's part of file name, or spell this fully).
>
> > > dw8250 IP, among which there are 2 of them:
>
> DesignWare 8250 IP
>
> ..
>
> > > The bug was hit when we are bringing up dw8250 IP on our hardware
>
> Ditto.
>
> > > platform, in which parameters are configured in such combination:
> > > - ADDTIONAL_FEATURE disabled;
> > > - FRACTIONAL_BAUD_DIVISOR_EN enabled;
>
> ..
>
> > The very same code change is already in tty-next (from another author).
>
> For your convenience:
>
> d804987153e7 ("serial: 8250_dw: Decouple DLF register check from UCV")
[sigh]
Apparently I thought tty/for-linus is the "bug fixing" branch for tty by
mistake, and didn't realize the same fix patch has been landed in tty-next
for a while.
Thanks for the update.
Anyway, I believe the fixing patch should cc stable and be getting backported?
I hit the bug on 5.10.x, it's possible the bug has been there before that.
Thanks,
dawei
>
> --
> With Best Regards,
> Andy Shevchenko
>
>
>
