ASoC: davinci: davinci-pcm does not need to be a plaform_driver

Same as the commit 518de86b (ASoC: tegra: register 'platform' from DAIs,
get rid of pdev). It makes davinci-pcm not a platform_driver but helper
to register "platform", so that the platform_device for davinci-pcm can
be saved completely.
Signed-off-by: Hebbar, Gururaja <gururaja.hebbar@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/davinci/davinci-evm.c

@@ -159,7 +159,7 @@ static struct snd_soc_dai_link dm6446_evm_dai = {
 	.cpu_dai_name = "davinci-mcbsp",
 	.codec_dai_name = "tlv320aic3x-hifi",
 	.codec_name = "tlv320aic3x-codec.1-001b",
-	.platform_name = "davinci-pcm-audio",
+	.platform_name = "davinci-mcbsp",
 	.init = evm_aic3x_init,
 	.ops = &evm_ops,
 };
@@ -170,7 +170,7 @@ static struct snd_soc_dai_link dm355_evm_dai = {
 	.cpu_dai_name = "davinci-mcbsp.1",
 	.codec_dai_name = "tlv320aic3x-hifi",
 	.codec_name = "tlv320aic3x-codec.1-001b",
-	.platform_name = "davinci-pcm-audio",
+	.platform_name = "davinci-mcbsp.1",
 	.init = evm_aic3x_init,
 	.ops = &evm_ops,
 };
@@ -184,14 +184,15 @@ static struct snd_soc_dai_link dm365_evm_dai = {
 	.init = evm_aic3x_init,
 	.codec_name = "tlv320aic3x-codec.1-0018",
 	.ops = &evm_ops,
+	.platform_name = "davinci-mcbsp",
 #elif defined(CONFIG_SND_DM365_VOICE_CODEC)
 	.name = "Voice Codec - CQ93VC",
 	.stream_name = "CQ93",
 	.cpu_dai_name = "davinci-vcif",
 	.codec_dai_name = "cq93vc-hifi",
 	.codec_name = "cq93vc-codec",
+	.platform_name = "avinci-vcif",
 #endif
-	.platform_name = "davinci-pcm-audio",
 };
 
 static struct snd_soc_dai_link dm6467_evm_dai[] = {
@@ -200,7 +201,7 @@ static struct snd_soc_dai_link dm6467_evm_dai[] = {
 		.stream_name = "AIC3X",
 		.cpu_dai_name= "davinci-mcasp.0",
 		.codec_dai_name = "tlv320aic3x-hifi",
-		.platform_name ="davinci-pcm-audio",
+		.platform_name = "davinci-mcasp.0",
 		.codec_name = "tlv320aic3x-codec.0-001a",
 		.init = evm_aic3x_init,
 		.ops = &evm_ops,
@@ -211,7 +212,7 @@ static struct snd_soc_dai_link dm6467_evm_dai[] = {
 		.cpu_dai_name= "davinci-mcasp.1",
 		.codec_dai_name = "dit-hifi",
 		.codec_name = "spdif_dit",
-		.platform_name = "davinci-pcm-audio",
+		.platform_name = "davinci-mcasp.1",
 		.ops = &evm_spdif_ops,
 	},
 };
@@ -222,7 +223,7 @@ static struct snd_soc_dai_link da830_evm_dai = {
 	.cpu_dai_name = "davinci-mcasp.1",
 	.codec_dai_name = "tlv320aic3x-hifi",
 	.codec_name = "tlv320aic3x-codec.1-0018",
-	.platform_name = "davinci-pcm-audio",
+	.platform_name = "davinci-mcasp.1",
 	.init = evm_aic3x_init,
 	.ops = &evm_ops,
 };
@@ -233,7 +234,7 @@ static struct snd_soc_dai_link da850_evm_dai = {
 	.cpu_dai_name= "davinci-mcasp.0",
 	.codec_dai_name = "tlv320aic3x-hifi",
 	.codec_name = "tlv320aic3x-codec.1-0018",
-	.platform_name = "davinci-pcm-audio",
+	.platform_name = "davinci-mcasp.0",
 	.init = evm_aic3x_init,
 	.ops = &evm_ops,
 };

sound/soc/davinci/davinci-i2s.c

@@ -732,8 +732,16 @@ static int davinci_i2s_probe(struct platform_device *pdev)
 	if (ret != 0)
 		goto err_release_clk;
 
+	ret = davinci_soc_platform_register(&pdev->dev);
+	if (ret) {
+		dev_err(&pdev->dev, "register PCM failed: %d\n", ret);
+		goto err_unregister_dai;
+	}
+
 	return 0;
 
+err_unregister_dai:
+	snd_soc_unregister_dai(&pdev->dev);
 err_release_clk:
 	clk_disable(dev->clk);
 	clk_put(dev->clk);
@@ -745,6 +753,8 @@ static int davinci_i2s_remove(struct platform_device *pdev)
 	struct davinci_mcbsp_dev *dev = dev_get_drvdata(&pdev->dev);
 
 	snd_soc_unregister_dai(&pdev->dev);
+	davinci_soc_platform_unregister(&pdev->dev);
+
 	clk_disable(dev->clk);
 	clk_put(dev->clk);
 	dev->clk = NULL;

sound/soc/davinci/davinci-mcasp.c

@@ -945,8 +945,17 @@ static int davinci_mcasp_probe(struct platform_device *pdev)
 
 	if (ret != 0)
 		goto err_release_clk;
+
+	ret = davinci_soc_platform_register(&pdev->dev);
+	if (ret) {
+		dev_err(&pdev->dev, "register PCM failed: %d\n", ret);
+		goto err_unregister_dai;
+	}
+
 	return 0;
 
+err_unregister_dai:
+	snd_soc_unregister_dai(&pdev->dev);
 err_release_clk:
 	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
@@ -957,6 +966,7 @@ static int davinci_mcasp_remove(struct platform_device *pdev)
 {
 
 	snd_soc_unregister_dai(&pdev->dev);
+	davinci_soc_platform_unregister(&pdev->dev);
 
 	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);

sound/soc/davinci/davinci-pcm.c

@@ -864,28 +864,17 @@ static struct snd_soc_platform_driver davinci_soc_platform = {
 	.pcm_free = 	davinci_pcm_free,
 };
 
-static int __devinit davinci_soc_platform_probe(struct platform_device *pdev)
+int davinci_soc_platform_register(struct device *dev)
 {
-	return snd_soc_register_platform(&pdev->dev, &davinci_soc_platform);
+	return snd_soc_register_platform(dev, &davinci_soc_platform);
 }
+EXPORT_SYMBOL_GPL(davinci_soc_platform_register);
 
-static int __devexit davinci_soc_platform_remove(struct platform_device *pdev)
+void davinci_soc_platform_unregister(struct device *dev)
 {
-	snd_soc_unregister_platform(&pdev->dev);
-	return 0;
+	snd_soc_unregister_platform(dev);
 }
-
-static struct platform_driver davinci_pcm_driver = {
-	.driver = {
-			.name = "davinci-pcm-audio",
-			.owner = THIS_MODULE,
-	},
-
-	.probe = davinci_soc_platform_probe,
-	.remove = __devexit_p(davinci_soc_platform_remove),
-};
-
-module_platform_driver(davinci_pcm_driver);
+EXPORT_SYMBOL_GPL(davinci_soc_platform_unregister);
 
 MODULE_AUTHOR("Vladimir Barinov");
 MODULE_DESCRIPTION("TI DAVINCI PCM DMA module");

sound/soc/davinci/davinci-pcm.h

@@ -28,4 +28,7 @@ struct davinci_pcm_dma_params {
 	unsigned int fifo_level;
 };
 
+int davinci_soc_platform_register(struct device *dev);
+void davinci_soc_platform_unregister(struct device *dev);
+
 #endif

sound/soc/davinci/davinci-sffsdr.c

@@ -86,7 +86,7 @@ static struct snd_soc_dai_link sffsdr_dai = {
 	.cpu_dai_name = "davinci-mcbsp",
 	.codec_dai_name = "pcm3008-hifi",
 	.codec_name = "pcm3008-codec",
-	.platform_name = "davinci-pcm-audio",
+	.platform_name = "davinci-mcbsp",
 	.ops = &sffsdr_ops,
 };
 

sound/soc/davinci/davinci-vcif.c

@@ -240,12 +240,20 @@ static int davinci_vcif_probe(struct platform_device *pdev)
 		return ret;
 	}
 
+	ret = davinci_soc_platform_register(&pdev->dev);
+	if (ret) {
+		dev_err(&pdev->dev, "register PCM failed: %d\n", ret);
+		snd_soc_unregister_dai(&pdev->dev);
+		return ret;
+	}
+
 	return 0;
 }
 
 static int davinci_vcif_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_dai(&pdev->dev);
+	davinci_soc_platform_unregister(&pdev->dev);
 
 	return 0;
 }