----- Original Message -----
> From: "Greg Kroah-Hartman" <gregkh@xxxxxxxxxxxxxxxxxxx>
> To: "Aaron Sierra" <asierra@xxxxxxxxxxx>
> Sent: Thursday, August 1, 2019 10:12:02 AM
> On Wed, Jul 31, 2019 at 12:45:45PM -0500, Aaron Sierra wrote:
>> Move INT0 clearing out of common, per-port serial8250_do_startup()
>> into PCI device probe/resume.
>>
>> As described in commit 2c0ac5b48a35 ("serial: exar: Fix stuck MSIs"),
>> the purpose of clearing INT0 is to prevent the PCI interrupt line from
>> becoming stuck asserted, "which is fatal with edge-triggered MSIs".
>>
>> Like the clearing via interrupt handler that moved from common code in
>> commit c7e1b4059075 ("tty: serial: exar: Relocate sleep wake-up
>> handling"), this clearing at startup can be better handled at the PCI
>> device level.
>>
>> Cc: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
>> Cc: Sudip Mukherjee <sudip.mukherjee@xxxxxxxxxxxxxxx>
>> Signed-off-by: Aaron Sierra <asierra@xxxxxxxxxxx>
>> Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
>> ---
>>
>> The embedded patch is written to follow this patch from Andy Shevchenko:
>> [PATCH v4 3/3] serial: 8250_exar: Move custom divisor support out from 8250_port
>
> It does not apply to my tree after that patch, are you sure about this?
>
> Please rebase against my tty-testing branch and resend.
Greg,
Sorry about that. I'm running through testing now. I'll submit v2 shortly.
Aaron
