At Thu, 10 May 2012 09:08:38 +0200, Takashi Iwai wrote: > > Dave, > > this is a small patch series to add the support for audio clients > to VGA switcheroo. The background problem is that the HD-audio HDMI > controller of the discrete GPU is also disabled when the graphics core > is disabled by vga-switcheroo. This leads to a long stall of the > audio driver, or at worst, it Oopses. > https://bugzilla.kernel.org/show_bug.cgi?id=43155 > > I tried to work around it only in the audio driver side, but it > doesn't seem to help. When the graphics is disabled, the whole PCI > entry can't be accessed any longer. Even reading a config triggers an > Oops. So, the only option is to implement the VGA switcheroo client > for the audio. > > The first patch refactors the vga-switcheroo code to be ready to > accept for more than two clients. It's mostly a clean up using linked > lists. The next patch implements the audio client registration. > > BTW, if these patches are OK, the question remains how to merge. > Obviously I'd need more patches for HD-audio driver based on the new > vga_switcheroo_register_audio_client(). One option is to apply these > patches to a persistent branch (i.e. no rebase planned) of your tree > and pull it to my tree with more patches for HD-audio. > Does it sound good for you? Or, if you prefer, just pull from topic/vga-switcheroo branch of my tree: git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git topic/vga-switcheroo Takashi _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
