lkml.org 
[lkml]   [2018]   [Nov]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/4] PCI / ACPI: Identify external PCI devices
On Thu, Nov 15, 2018 at 09:00:54PM +0200, Mika Westerberg wrote:
> On Thu, Nov 15, 2018 at 05:46:08PM +0000, Lorenzo Pieralisi wrote:
> > Do you really need to parse it if the dev->is_thunderbolt check is enough ?
>
> Yes, we need to parse it one way or another. dev->is_thunderbolt is
> based on heuristics which do not apply anymore when the thing gets
> integrated in the SoC.
>
> The _DSD is there already (on existing systems) and is being used by
> Windows so I don't understand why we cannot take advantage of it? Every
> new system with Thunderbolt ports will have it.

Just to clarify a bit. We can use is_thunderbolt in place of is_external
if we don't want to deal with other possible "external" devices right now.

However, we still need to parse the _DSD and based on that fill the
is_thunderbolt for these devices (same way we do for is_external in this
series). So basically we just get rid of the is_external flag and use
is_thunderbolt instead.

\
 
 \ /
  Last update: 2018-11-16 08:02    [W:0.338 / U:0.040 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site