[alsa-devel] [PATCH v4 0/3] support DP MST audio

[Yang, Libin]

Hi Daniel,

OK, I will resend the patches tomorrow. Thanks.

Hi Takashi,

In case you still need the patches for i915, it is on
git://anongit.freedesktop.org/drm-tip:drm-tip

My patches are:

commit 9a148a96fc3a654ddcf142a7ab7db37b972ba5d8
drm/i915/debugfs: add dp mst info

commit 9935f7fa2854355203e3976762eecfb218079aac
drm/i915: abstract ddi being audio enabled

commit 7f9e77545b92bcb894b8e2be5646535e8ba8da9e
drm/i915: enable dp mst audio

commit 31613268c0a6f7abdb0c19487a084249bcf203ba
drm/i915/audio: extend get_saved_enc() to support more scenarios

commit f55d23be11ed15f493957246f3b81fc530e79d70
drm/i915/audio: extend audio sync rate support for DP MST

And you may still need the patches in gfx to fix the flicker issue, which Dhinakaran
can help.

Regards,
Libin


>-----Original Message-----
>From: Daniel Vetter [mailto:daniel.vetter at ffwll.ch] On Behalf Of Daniel Vetter
>Sent: Wednesday, January 11, 2017 4:35 PM
>To: Takashi Iwai <tiwai at suse.de>
>Cc: Daniel Vetter <daniel at ffwll.ch>; Yang, Libin <libin.yang at intel.com>; intel-
>gfx <intel-gfx at lists.freedesktop.org>; Nikula, Jani
><jani.nikula at linux.intel.com>; alsa-devel at alsa-project.org; Lin, Mengdong
><mengdong.lin at intel.com>
>Subject: Re: [alsa-devel] [PATCH v4 0/3] support DP MST audio
>
>On Wed, Jan 11, 2017 at 09:00:27AM +0100, Takashi Iwai wrote:
>> On Wed, 11 Jan 2017 08:39:13 +0100,
>> Daniel Vetter wrote:
>> >
>> > On Tue, Jan 10, 2017 at 9:49 AM, Takashi Iwai <tiwai at suse.de> wrote:
>> > > On Tue, 10 Jan 2017 09:45:31 +0100,
>> > >> >-----Original Message-----
>> > >> >From: Takashi Iwai [mailto:tiwai at suse.de]
>> > >> >Sent: Tuesday, January 10, 2017 4:19 PM
>> > >> >To: Yang, Libin <libin.yang at intel.com>
>> > >> >Cc: Daniel Vetter <daniel at ffwll.ch>; intel-gfx
>> > >> ><intel-gfx at lists.freedesktop.org>;
>> > >> >Nikula, Jani <jani.nikula at linux.intel.com>;
>> > >> >alsa-devel at alsa-project.org; Lin, Mengdong
>> > >> ><mengdong.lin at intel.com>
>> > >> >Subject: Re: [alsa-devel] [PATCH v4 0/3] support DP MST audio
>> > >> >
>> > >> >On Mon, 09 Jan 2017 07:22:55 +0100, Yang, Libin wrote:
>> > >> >>
>> > >> >> Hi Takashi,
>> > >> >>
>> > >> >> It seems the patches for DP MST in gfx is not merged into Linus
>branch.
>> > >> >>
>> > >> >> Do we have plan to merge gfx branch manually and review the
>> > >> >> patches for
>> > >> >audio? Or we will wait the DP MST patches for i915 merged into Linus
>branch?
>> > >> >
>> > >> >Sorry, this was delayed due to the vacation.
>> > >> >Now I applied these three patches to topic/hda-dp-mst branch
>> > >> >based on 4.10- rc2, and it was merged to for-next branch.
>> > >> >
>> > >> >  git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git
>> > >> >topic/hda-dp- mst
>> > >>
>> > >> Thanks. These audio patches are based on the i915 dp mst patches.
>> > >> Without
>> > >> I915 driver patches support, it will make errors.
>> > >
>> > > Ah yeah, I forgot it.  So I removed it from for-next branch, but
>> > > topic/hda-dp-mst branch is kept so that it can be merged to i915
>> > > tree.
>> > >
>> > > Let me know if there is any i915 branch I can pull into sound tree.
>> >
>> > Aw, I didn't know that the depency goes this way round, the dp mst
>> > patches (I'm not even sure which ones they are) on the i915 are just
>> > on the general pile. So not anywhere near a place where I can make a
>> > topic branch.
>> >
>> > I guess what needs to be done now is a cherry-picked list of just
>> > the patches we need, on top of -rc3, that I can then pull into
>> > drm-intel.git plus send a pull request for that to Takashi. That
>> > means the patches are twice in drm-intel.git, but if we cherry-pick
>> > reference them correctly then that should be all ok and can't really
>> > be helped.
>> >
>> > Or we just delay the audio side for 4.12, dp mst audio support is 4
>> > years late anyway, so one more release won'thurt that much ;-)
>>
>> Well, thinking of the amount of patches, I guess we can do other way
>> round: basically it's fine to apply Libin's latest patches to drm tree
>> for 4.11, if it makes things easier.  I don't think we'll have a big
>> conflict with these changes for others during 4.11 development.  If
>> any, I can pull some of stable point from drm tree.
>>
>> Does it work for you?  If yes, feel free to apply these three sound
>> patches to drm or i915 tree with my ack.
>>
>> Reviewed-by: Takashi Iwai <tiwai at suse.de>
>
>Works for me too. Libin, can you pls resend (somehow this thread
>disconnected from the patches for me), with Takashi's r-b + ack for merging
>through drm-intel?
>
>Thanks, Daniel
>--
>Daniel Vetter
>Software Engineer, Intel Corporation
>http://blog.ffwll.ch