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

Same as the commit 518de86 (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-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");