linux-kernel - [PATCH v6 1/7] ASoC: fsl-asoc-card: add support for dai links with multiple codecs

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Date: Thu, 27 Jun 2024 10:30:58 +0200
From: Elinor Montmasson <elinor.montmasson@...oirfairelinux.com>
To: Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	Russell King <linux@...linux.org.uk>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	Shengjiu Wang <shengjiu.wang@...il.com>,
	Xiubo Li <Xiubo.Lee@...il.com>,
	Nicolin Chen <nicoleotsuka@...il.com>
Cc: Pengutronix Kernel Team <kernel@...gutronix.de>,
	linux-sound@...r.kernel.org,
	devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	alsa-devel@...a-project.org,
	linuxppc-dev@...ts.ozlabs.org,
	Elinor Montmasson <elinor.montmasson@...oirfairelinux.com>,
	Philip-Dylan <philip-dylan.gleonec@...oirfairelinux.com>
Subject: [PATCH v6 1/7] ASoC: fsl-asoc-card: add support for dai links with multiple codecs

Add support for dai links using multiple codecs for multi-codec
use cases.

Co-developed-by: Philip-Dylan Gleonec <philip-dylan.gleonec@...oirfairelinux.com>
Signed-off-by: Philip-Dylan Gleonec <philip-dylan.gleonec@...oirfairelinux.com>
Signed-off-by: Elinor Montmasson <elinor.montmasson@...oirfairelinux.com>
---
 sound/soc/fsl/fsl-asoc-card.c | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/sound/soc/fsl/fsl-asoc-card.c b/sound/soc/fsl/fsl-asoc-card.c
index eb67689dcd6e..e8003fbc8092 100644
--- a/sound/soc/fsl/fsl-asoc-card.c
+++ b/sound/soc/fsl/fsl-asoc-card.c
@@ -542,6 +542,7 @@ static int fsl_asoc_card_late_probe(struct snd_soc_card *card)
 static int fsl_asoc_card_probe(struct platform_device *pdev)
 {
 	struct device_node *cpu_np, *codec_np, *asrc_np;
+	struct snd_soc_dai_link_component *codec_comp;
 	struct device_node *np = pdev->dev.of_node;
 	struct platform_device *asrc_pdev = NULL;
 	struct device_node *bitclkprovider = NULL;
@@ -552,6 +553,7 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
 	const char *codec_dai_name;
 	const char *codec_dev_name;
 	u32 asrc_fmt = 0;
+	int codec_idx;
 	u32 width;
 	int ret;
 
@@ -816,10 +818,10 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
 
 	/* Normal DAI Link */
 	priv->dai_link[0].cpus->of_node = cpu_np;
-	priv->dai_link[0].codecs->dai_name = codec_dai_name;
+	priv->dai_link[0].codecs[0].dai_name = codec_dai_name;
 
 	if (!fsl_asoc_card_is_ac97(priv))
-		priv->dai_link[0].codecs->of_node = codec_np;
+		priv->dai_link[0].codecs[0].of_node = codec_np;
 	else {
 		u32 idx;
 
@@ -830,11 +832,11 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
 			goto asrc_fail;
 		}
 
-		priv->dai_link[0].codecs->name =
+		priv->dai_link[0].codecs[0].name =
 				devm_kasprintf(&pdev->dev, GFP_KERNEL,
 					       "ac97-codec.%u",
 					       (unsigned int)idx);
-		if (!priv->dai_link[0].codecs->name) {
+		if (!priv->dai_link[0].codecs[0].name) {
 			ret = -ENOMEM;
 			goto asrc_fail;
 		}
@@ -848,10 +850,11 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
 		/* DPCM DAI Links only if ASRC exists */
 		priv->dai_link[1].cpus->of_node = asrc_np;
 		priv->dai_link[1].platforms->of_node = asrc_np;
-		priv->dai_link[2].codecs->dai_name = codec_dai_name;
-		priv->dai_link[2].codecs->of_node = codec_np;
-		priv->dai_link[2].codecs->name =
-				priv->dai_link[0].codecs->name;
+		for_each_link_codecs((&(priv->dai_link[2])), codec_idx, codec_comp) {
+			codec_comp->dai_name = priv->dai_link[0].codecs[codec_idx].dai_name;
+			codec_comp->of_node = priv->dai_link[0].codecs[codec_idx].of_node;
+			codec_comp->name = priv->dai_link[0].codecs[codec_idx].name;
+		}
 		priv->dai_link[2].cpus->of_node = cpu_np;
 		priv->dai_link[2].dai_fmt = priv->dai_fmt;
 		priv->card.num_links = 3;
-- 
2.34.1