Messages in this thread |  | | From | Kuninori Morimoto <> | Subject | Re: [PATCH 0/4 v2] Audio support for adv7511 hdmi bridge | Date | Wed, 2 Nov 2016 01:43:26 +0000 |
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Hi John
> > Above patch is using normal simple-card style for HDMI sound, but as Laurent > > said we want to use same DT style for HDMI video and sound (= OF graph style). > > Fortunately, I posted patch-set for OF graph support on sound card yesterday. > > Can you check this ? > > http://www.spinics.net/lists/devicetree/msg146131.html > > The points are > > - sound can use OF graph style DT > > - sound-card DT is no longer needed > > - it needs type = "sound" property > > > > patch-set [0/23] is this > > http://www.spinics.net/lists/devicetree/msg146113.html > > Thanks for the pointers! If I understand this correctly, the OF graph > simple-card method would replace my current simple-card dts usage for > hikey? Other then just having another out-of-tree patchset to track, > I don't have any objection to trying to use the OF graph simple-card > method in the hikey dts (though I suspect I'll have to pester you for > help when I give it a shot).
I posted v2 patchset OF graph simple-card which doesn't have "type" property. Anyway, if you use OF graph simple-card, your "CPU" side driver need to call asoc_simple_card_try_to_probe_graph_card() to probing it.
And this is not 100% mandatory, but your CPU and/or Codec driver want to adjust OF graph style for parsing. The position is like this
simple-card :: dai-link <-> OF graph simple-card :: port/endpoint
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