[PATCH] ASoC: audio-graph: respawn Platform Support

[Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

commit 63f2f9cceb09f8 ("ASoC: audio-graph: remove Platform support")
removed Platform support from audio-graph, because it doesn't have
"plat" support on DT (simple-card has).
But, Platform support is needed if user is using
snd_dmaengine_pcm_register() which adds generic DMA as Platform.
And this Platform dev is using CPU dev.

Without this patch, at least STM32MP15 audio sound card is no more
functional (v5.13 or later). This patch respawn Platform Support on
audio-graph again.

Reported-by: Olivier MOYSAN <olivier.moysan@foss.st.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
This patch needs Olivier's Tested-by

 sound/soc/generic/audio-graph-card.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c
index 5e71382467e8..546f6fd0609e 100644
--- a/sound/soc/generic/audio-graph-card.c
+++ b/sound/soc/generic/audio-graph-card.c
@@ -285,6 +285,7 @@ static int graph_dai_link_of_dpcm(struct asoc_simple_priv *priv,
 	if (li->cpu) {
 		struct snd_soc_card *card = simple_priv_to_card(priv);
 		struct snd_soc_dai_link_component *cpus = asoc_link_to_cpu(dai_link, 0);
+		struct snd_soc_dai_link_component *platforms = asoc_link_to_platform(dai_link, 0);
 		int is_single_links = 0;
 
 		/* Codec is dummy */
@@ -313,6 +314,7 @@ static int graph_dai_link_of_dpcm(struct asoc_simple_priv *priv,
 			dai_link->no_pcm = 1;
 
 		asoc_simple_canonicalize_cpu(cpus, is_single_links);
+		asoc_simple_canonicalize_platform(platforms, cpus);
 	} else {
 		struct snd_soc_codec_conf *cconf = simple_props_to_codec_conf(dai_props, 0);
 		struct snd_soc_dai_link_component *codecs = asoc_link_to_codec(dai_link, 0);
@@ -366,6 +368,7 @@ static int graph_dai_link_of(struct asoc_simple_priv *priv,
 	struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
 	struct snd_soc_dai_link_component *cpus = asoc_link_to_cpu(dai_link, 0);
 	struct snd_soc_dai_link_component *codecs = asoc_link_to_codec(dai_link, 0);
+	struct snd_soc_dai_link_component *platforms = asoc_link_to_platform(dai_link, 0);
 	char dai_name[64];
 	int ret, is_single_links = 0;
 
@@ -383,6 +386,7 @@ static int graph_dai_link_of(struct asoc_simple_priv *priv,
 		 "%s-%s", cpus->dai_name, codecs->dai_name);
 
 	asoc_simple_canonicalize_cpu(cpus, is_single_links);
+	asoc_simple_canonicalize_platform(platforms, cpus);
 
 	ret = graph_link_init(priv, cpu_ep, codec_ep, li, dai_name);
 	if (ret < 0)
@@ -608,6 +612,7 @@ static int graph_count_noml(struct asoc_simple_priv *priv,
 
 	li->num[li->link].cpus		= 1;
 	li->num[li->link].codecs	= 1;
+	li->num[li->link].platforms     = 1;
 
 	li->link += 1; /* 1xCPU-Codec */
 
@@ -630,6 +635,7 @@ static int graph_count_dpcm(struct asoc_simple_priv *priv,
 
 	if (li->cpu) {
 		li->num[li->link].cpus		= 1;
+		li->num[li->link].platforms     = 1;
 
 		li->link++; /* 1xCPU-dummy */
 	} else {
-- 
2.25.1