ASoC: Ux500: Initialise PCM from MSP probe rather than as a device

The PCM is a pseudo-device. It doesn't have any of it's own registers
or hardware. It rather acts as a layer of abstraction for DMA
transfers. Hence, instead of classifying it as a device in its own
right, we call the initialisation from the MSP driver.

Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Ola LILJA2 <ola.o.lilja@stericsson.com>
Cc: alsa-devel@alsa-project.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/ux500/ux500_msp_dai.c b/sound/soc/ux500/ux500_msp_dai.c
index 74bb3c0..478b4b6 100644
--- a/sound/soc/ux500/ux500_msp_dai.c
+++ b/sound/soc/ux500/ux500_msp_dai.c
@@ -28,6 +28,7 @@
 
 #include "ux500_msp_i2s.h"
 #include "ux500_msp_dai.h"
+#include "ux500_pcm.h"
 
 static int setup_pcm_multichan(struct snd_soc_dai *dai,
 			struct ux500_msp_config *msp_config)
@@ -832,8 +833,18 @@
 		goto err_init_msp;
 	}
 
+	ret = ux500_pcm_register_platform(pdev);
+	if (ret < 0) {
+		dev_err(&pdev->dev,
+			"Error: %s: Failed to register PCM platform device!\n",
+			__func__);
+		goto err_reg_plat;
+	}
+
 	return 0;
 
+err_reg_plat:
+	snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(ux500_msp_dai_drv));
 err_init_msp:
 	clk_put(drvdata->clk);
 err_clk:
@@ -848,6 +859,8 @@
 {
 	struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(&pdev->dev);
 
+	ux500_pcm_unregister_platform(pdev);
+
 	snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(ux500_msp_dai_drv));
 
 	devm_regulator_put(drvdata->reg_vape);