Re: [RFC PATCH 0/2] serial: 8250_dw: IO space + polling mode support

[John Garry]

On 26/02/2018 15:02, Andy Shevchenko wrote:
> On Mon, 2018-02-26 at 13:15 +0000, John Garry wrote:
> > On 26/02/2018 12:27, Andy Shevchenko wrote:
> > > On Mon, 2018-02-26 at 14:21 +0200, Andy Shevchenko wrote:
> > > > On Mon, 2018-02-26 at 11:56 +0000, John Garry wrote:
> > >
> > >
> > > > >    Device (LPC0.CON0) {
> > > > >      Name (_HID, "HISI1031")
> > > > >      // Name (_CID, "PNP0501") // cannot support PNP
> > >
> > >
> > > One more question. What is the problem with this CID? Do you have a
> > > race
> > > condition in enumeration?
> >
> > Hi Andy,
> >
> > Not sure if race condition exactly. I tried enabling this CID and a
> > pnp
> > device is created in pnpacpi_add_device_handler(), while we have
> > already
> > marked the corresponding acpi_device to skip enumeration in ACPI scan
> > handler (by flagging it as a serial bus slave).
>
> Is that code already in upstream?

No, not yet.

> If no, please, Cc next version to me and possible Mika.

Of course. I should be sending it later today.

>
All the best,
John