ASoC: fsl: Restore configuration of platform

This reverts commit 33683cb ("ASoC: fsl: remove unnecessary
dai_link->platform").

dai_link->platform is needed. The platform component is
"snd_dmaengine_pcm", which is registered from cpu driver,

If dai_link->platform is not assigned, then platform
component will not be probed, then there will be issue:

aplay: main:831: audio open error: Invalid argument

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1681900158-17428-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: TE-N-ShengjiuWang

sound/soc/fsl/imx-audmix.c

@@ -207,8 +207,8 @@ static int imx_audmix_probe(struct platform_device *pdev)
 	for (i = 0; i < num_dai; i++) {
 		struct snd_soc_dai_link_component *dlc;
 
-		/* for CPU/Codec x 2 */
-		dlc = devm_kcalloc(&pdev->dev, 4, sizeof(*dlc), GFP_KERNEL);
+		/* for CPU/Codec/Platform x 2 */
+		dlc = devm_kcalloc(&pdev->dev, 6, sizeof(*dlc), GFP_KERNEL);
 		if (!dlc)
 			return -ENOMEM;
 
@@ -240,16 +240,19 @@ static int imx_audmix_probe(struct platform_device *pdev)
 
 		priv->dai[i].cpus = &dlc[0];
 		priv->dai[i].codecs = &dlc[1];
+		priv->dai[i].platforms = &dlc[2];
 
 		priv->dai[i].num_cpus = 1;
 		priv->dai[i].num_codecs = 1;
+		priv->dai[i].num_platforms = 1;
 
 		priv->dai[i].name = dai_name;
 		priv->dai[i].stream_name = "HiFi-AUDMIX-FE";
 		priv->dai[i].codecs->dai_name = "snd-soc-dummy-dai";
 		priv->dai[i].codecs->name = "snd-soc-dummy";
 		priv->dai[i].cpus->of_node = args.np;
 		priv->dai[i].cpus->dai_name = dev_name(&cpu_pdev->dev);
+		priv->dai[i].platforms->of_node = args.np;
 		priv->dai[i].dynamic = 1;
 		priv->dai[i].dpcm_playback = 1;
 		priv->dai[i].dpcm_capture = (i == 0 ? 1 : 0);
@@ -264,17 +267,20 @@ static int imx_audmix_probe(struct platform_device *pdev)
 		be_cp = devm_kasprintf(&pdev->dev, GFP_KERNEL,
 				       "AUDMIX-Capture-%d", i);
 
-		priv->dai[num_dai + i].cpus = &dlc[2];
-		priv->dai[num_dai + i].codecs = &dlc[3];
+		priv->dai[num_dai + i].cpus = &dlc[3];
+		priv->dai[num_dai + i].codecs = &dlc[4];
+		priv->dai[num_dai + i].platforms = &dlc[5];
 
 		priv->dai[num_dai + i].num_cpus = 1;
 		priv->dai[num_dai + i].num_codecs = 1;
+		priv->dai[num_dai + i].num_platforms = 1;
 
 		priv->dai[num_dai + i].name = be_name;
 		priv->dai[num_dai + i].codecs->dai_name = "snd-soc-dummy-dai";
 		priv->dai[num_dai + i].codecs->name = "snd-soc-dummy";
 		priv->dai[num_dai + i].cpus->of_node = audmix_np;
 		priv->dai[num_dai + i].cpus->dai_name = be_name;
+		priv->dai[num_dai + i].platforms->name = "snd-soc-dummy";
 		priv->dai[num_dai + i].no_pcm = 1;
 		priv->dai[num_dai + i].dpcm_playback = 1;
 		priv->dai[num_dai + i].dpcm_capture  = 1;

sound/soc/fsl/imx-spdif.c

@@ -26,23 +26,26 @@ static int imx_spdif_audio_probe(struct platform_device *pdev)
 	}
 
 	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
-	comp = devm_kzalloc(&pdev->dev, 2 * sizeof(*comp), GFP_KERNEL);
+	comp = devm_kzalloc(&pdev->dev, 3 * sizeof(*comp), GFP_KERNEL);
 	if (!data || !comp) {
 		ret = -ENOMEM;
 		goto end;
 	}
 
 	data->dai.cpus		= &comp[0];
 	data->dai.codecs	= &comp[1];
+	data->dai.platforms	= &comp[2];
 
 	data->dai.num_cpus	= 1;
 	data->dai.num_codecs	= 1;
+	data->dai.num_platforms	= 1;
 
 	data->dai.name = "S/PDIF PCM";
 	data->dai.stream_name = "S/PDIF PCM";
 	data->dai.codecs->dai_name = "snd-soc-dummy-dai";
 	data->dai.codecs->name = "snd-soc-dummy";
 	data->dai.cpus->of_node = spdif_np;
+	data->dai.platforms->of_node = spdif_np;
 	data->dai.playback_only = true;
 	data->dai.capture_only = true;