Re: [PATCH v2 0/2] serial: 8250_pci patches to address issues with pericom_do_set_divisor()
From: Andy Shevchenko
Date: Thu Nov 18 2021 - 04:53:43 EST
On Thu, Nov 18, 2021 at 8:09 AM Jay Dolan <jay.dolan@xxxxxxxxxxx> wrote:
> On 11/17/21 6:55 AM, Andy Shevchenko wrote:
> > A series patches to address three issues one customer managed to hit
> > all at once.
> > 1) Fourth port not being setup correctly on some Pericom chips. Fix
> > the entries in pci_serial_quirks array.
> > 2) Rewrite pericom_do_set_divisor() to always calc divisor and to use
> > the uartclk instead of a hard coded value. Always calculate divisor
> > without passing control to serial8250_do_set_divisor().
> > Jay, can you retest this, please?
> I was able to verify that the fourth port was placed at the fixed
> address for the card that previously had it at the wrong offset.
> I was also able to verify all of the standard baud rates for 24 and
> 14.7456 MHz crystals from 50 to their respective uartclk speed on the
With Best Regards,