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

Andy Shevchenko
2018-02-26T15:02:49Z

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?

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

--
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy