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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2021-10-12 13:55:12 +0900
committerMark Brown <broonie@kernel.org>2021-10-15 16:10:40 +0100
commitf03beb55a831bc7575b3c8882bf8fa6c81198eca (patch)
tree5d091622700efce49fd9e16c7d06191adf52dc78 /include/sound
parentc8c74939f791ccbbfff988aec5f929374dbef2a6 (diff)
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/sound')
-rw-r--r--include/sound/graph_card.h3
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 */