Displaying 1 result from an estimated 1 matches for "msg1170031".
2016 Jul 10
2
vga_switcheroo audio runpm
...tween devices beyond the hierarchical
parent/child relationship.
Rafael Wysocki (cc:) posted a series in January addressing the latter
problem with so-called "device links". The series was reposted recently
by Marek Szyprowski:
https://www.mail-archive.com/linux-kernel at vger.kernel.org/msg1170031.html
The vga_switcheroo audio handling should probably be reworked to use such
"device links". The result would be that the GPU won't runtime suspend
as long as a ref is held for the audio card. The audio card needs to then
make sure that it releases any refs if it has nothing to do....