linux-kernel - Re: `ucsi_acpi: probe of USBC000:00 failed with error -12` on Dell XPS 13 9370

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Date:   Thu, 17 May 2018 16:58:09 +0300
From:   Heikki Krogerus <heikki.krogerus@...ux.intel.com>
To:     Mario.Limonciello@...l.com
Cc:     greg@...ah.com, pmenzel+linux-usb@...gen.mpg.de,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: `ucsi_acpi: probe of USBC000:00 failed with error -12` on Dell
 XPS 13 9370

Hi Mario,

On Thu, May 17, 2018 at 01:01:20PM +0000, Mario.Limonciello@...l.com wrote:
> > > Heikki,
> > >
> > > I confirmed with internal team that UCSI is implemented on XPS 9370
> > > and was confirmed to be working properly with Windows 10 RS2+.
> > 
> > Just to double check: "UCSI was confirmed working properly", so not
> > "the Type-C ports were confirmed working properly"?
> 
> UCSI was confirmed working properly.  FWIW it's a certification requirement
> in Windows.

OK, thank you for confirming that.

> > > The reason that _STA is responding on this device node now but wasn't
> > > previously is it wasn't exposed in Linux until 4.16 when the Win 10 RS2
> > > OSI string started to respond.
> > 
> > OK.
> > 
> > > Intel should internally have some XPS 9370 you can remotely access if
> > > you would like to poke around ACPI tables some.
> > 
> > I will try get access to XPS 9370, but with the acpi tables, if
> > somebody could just send me acpidump, that would be enough:
> > 
> >         % acpidump -o xps9370_acpi.dump

I now have the XPS 9370 ACPI tables.


Br,

-- 
heikki