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| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2021-10-12 07:55:12 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-10-15 18:10:40 +0300 |
| commit | f03beb55a831bc7575b3c8882bf8fa6c81198eca (patch) | |
| tree | 5d091622700efce49fd9e16c7d06191adf52dc78 /include | |
| parent | c8c74939f791ccbbfff988aec5f929374dbef2a6 (diff) | |
| download | linux-f03beb55a831bc7575b3c8882bf8fa6c81198eca.tar.xz | |
ASoC: audio-graph-card2: add DPCM support
This patch adds DPCM support to audio-graph-card2.
It uses "dpcm" node (= D), needs to have routing (= A),
need to indicate both FE/BE at links (= B, C).
dpcm ports@0 is for FE (= B), port@1 is for BE (= C).
remote-endpoint can use both Single/Multi connection.
DSP
************
PCM0 <--> * fe0 be0 * <--> DAI0: Codec Headset
PCM1 <--> * fe1 be1 * <--> DAI1: Codec Speakers
PCM2 <--> * fe2 be2 * <--> DAI2: MODEM
PCM3 <--> * fe3 be3 * <--> DAI3: BT
* be4 * <--> DAI4: DMIC
* be5 * <--> DAI5: FM
************
sound {
compatible = "audio-graph-card2";
// indicate routing
(A) routing = "xxx Playback", "xxx Playback",
"xxx Playback", "xxx Playback",
"xxx Playback", "xxx Playback";
// indicate all Front-End, Back-End in DPCM case
(B) links = <&fe0, &fe1, ...
(C) &be0, &be1, ...
(D) dpcm {
// Front-End
ports@0 {
(B) fe0: port@0 { fe0_ep: endpoint { remote-endpoint = <&pcm0_ep>; }; };
(B) fe1: port@1 { fe1_ep: endpoint { remote-endpoint = <&pcm1_ep>; }; };
...
};
// Back-End
ports@1 {
(C) be0: port@0 { be0_ep: endpoint { remote-endpoint = <&dai0_ep>; }; };
(C) be1: port@1 { be1_ep: endpoint { remote-endpoint = <&dai1_ep>; }; };
...
};
};
};
CPU {
ports {
bitclock-master;
frame-master;
port@0 { pcm0_ep: endpoint { remote-endpoint = <&fe0_ep>; }; };
port@1 { pcm1_ep: endpoint { remote-endpoint = <&fe1_ep>; }; };
...
};
};
Codec {
ports {
port@0 { dai0_ep: endpoint { remote-endpoint = <&be0_ep>; }; };
port@1 { dai1_ep: endpoint { remote-endpoint = <&be1_ep>; }; };
...
};
};
Link: https://lore.kernel.org/r/87k0xszlep.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87zgrelu4v.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/sound/graph_card.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/sound/graph_card.h b/include/sound/graph_card.h index 497d59585b2d..ece78a84391c 100644 --- a/include/sound/graph_card.h +++ b/include/sound/graph_card.h @@ -17,6 +17,7 @@ struct graph2_custom_hooks { int (*hook_pre)(struct asoc_simple_priv *priv); int (*hook_post)(struct asoc_simple_priv *priv); GRAPH2_CUSTOM custom_normal; + GRAPH2_CUSTOM custom_dpcm; }; int audio_graph_parse_of(struct asoc_simple_priv *priv, struct device *dev); @@ -25,5 +26,7 @@ int audio_graph2_parse_of(struct asoc_simple_priv *priv, struct device *dev, int audio_graph2_link_normal(struct asoc_simple_priv *priv, struct device_node *lnk, struct link_info *li); +int audio_graph2_link_dpcm(struct asoc_simple_priv *priv, + struct device_node *lnk, struct link_info *li); #endif /* __GRAPH_CARD_H */ |