Re: [PATCH v2] serial: exar: Fix stuck MSIs

2017-05-14 Thread Greg Kroah-Hartman
On Sat, May 13, 2017 at 09:09:17AM +0200, Jan Kiszka wrote: > On 2017-04-24 14:07, Andy Shevchenko wrote: > > On Mon, 2017-04-24 at 12:30 +0200, Jan Kiszka wrote: > >> After migrating 8250_exar to MSI in 172c33cb61da, we can get stuck > >> without further interrupts because of the special wake-up e

Re: [PATCH v2] serial: exar: Fix stuck MSIs

2017-05-13 Thread Jan Kiszka
On 2017-04-24 14:07, Andy Shevchenko wrote: > On Mon, 2017-04-24 at 12:30 +0200, Jan Kiszka wrote: >> After migrating 8250_exar to MSI in 172c33cb61da, we can get stuck >> without further interrupts because of the special wake-up event these >> chips send. They are only cleared by reading INT0. As

Re: [PATCH v2] serial: exar: Fix stuck MSIs

2017-04-24 Thread Andy Shevchenko
On Mon, 2017-04-24 at 12:30 +0200, Jan Kiszka wrote: > After migrating 8250_exar to MSI in 172c33cb61da, we can get stuck > without further interrupts because of the special wake-up event these > chips send. They are only cleared by reading INT0. As we fail to do so > during startup and shutdown, w