[alsa-devel] [RFC PATCH 0/2] ALSA: hda - DP MST audio for Jack support

[Takashi Iwai]

On Tue, 03 Nov 2015 09:42:54 +0100,
libin.yang at linux.intel.com wrote:
> 
> From: Libin Yang <libin.yang at linux.intel.com>
> 
> This is the patch set for Jack support for DP MST audio
> 
> Libin Yang (2):
>   ALSA: hda - jack support DP MST audio
>   ALSA: hda - hdmi audio add dynamically jack binding to pin

I'm somehow confused by this patch series.
Is the unsolicited event handling itself changed for MST?  I mean, you
cannot know which MST dev# is given beforehand, while you seem trying
to assign such a number to the jack object.

We create all jacks statically at probe time.  And in MST case, each
jack is still supposed to be corresponding to each PCM stream, not to
each pin.  So I don't see how this fits with the big picture.

A bit more explanation is needed.


thanks

Takashi

> 
>  sound/pci/hda/hda_jack.c   | 186 ++++++++++++++++++++++++++++++++++++++++-----
>  sound/pci/hda/hda_jack.h   |  32 +++++++-
>  sound/pci/hda/patch_hdmi.c | 116 ++++++++++++++++++++++------
>  3 files changed, 288 insertions(+), 46 deletions(-)
> 
> -- 
> 1.9.1
>