[alsa-devel] [PATCH 2/7] ASoC: fsl: mpc5200 combine psc_dma platform data

[Eric Millbrandt]

The mpc5200_psc_ac97 and mpc5200_psc_i2s modules rely on shared platform data
with mpc5200_dma.

Signed-off-by: Eric Millbrandt <emillbrandt at dekaresearch.com>

diff --git a/sound/soc/fsl/mpc5200_dma.c b/sound/soc/fsl/mpc5200_dma.c
index 9a3f7c5..9997c03 100644
--- a/sound/soc/fsl/mpc5200_dma.c
+++ b/sound/soc/fsl/mpc5200_dma.c
@@ -370,7 +370,7 @@ static struct snd_soc_platform_driver mpc5200_audio_dma_platform = {
 	.pcm_free	= &psc_dma_free,
 };
 
-static int mpc5200_hpcd_probe(struct platform_device *op)
+int mpc5200_audio_dma_create(struct platform_device *op)
 {
 	phys_addr_t fifo;
 	struct psc_dma *psc_dma;
@@ -487,8 +487,9 @@ out_unmap:
 	iounmap(regs);
 	return ret;
 }
+EXPORT_SYMBOL_GPL(mpc5200_audio_dma_create);
 
-static int mpc5200_hpcd_remove(struct platform_device *op)
+int mpc5200_audio_dma_destroy(struct platform_device *op)
 {
 	struct psc_dma *psc_dma = dev_get_drvdata(&op->dev);
 
@@ -510,24 +511,7 @@ static int mpc5200_hpcd_remove(struct platform_device *op)
 
 	return 0;
 }
-
-static struct of_device_id mpc5200_hpcd_match[] = {
-	{ .compatible = "fsl,mpc5200-pcm", },
-	{}
-};
-MODULE_DEVICE_TABLE(of, mpc5200_hpcd_match);
-
-static struct platform_driver mpc5200_hpcd_of_driver = {
-	.probe		= mpc5200_hpcd_probe,
-	.remove		= mpc5200_hpcd_remove,
-	.driver = {
-		.owner		= THIS_MODULE,
-		.name		= "mpc5200-pcm-audio",
-		.of_match_table    = mpc5200_hpcd_match,
-	}
-};
-
-module_platform_driver(mpc5200_hpcd_of_driver);
+EXPORT_SYMBOL_GPL(mpc5200_audio_dma_destroy);
 
 MODULE_AUTHOR("Grant Likely <grant.likely at secretlab.ca>");
 MODULE_DESCRIPTION("Freescale MPC5200 PSC in DMA mode ASoC Driver");
diff --git a/sound/soc/fsl/mpc5200_dma.h b/sound/soc/fsl/mpc5200_dma.h
index a3c0cd5..dff253f 100644
--- a/sound/soc/fsl/mpc5200_dma.h
+++ b/sound/soc/fsl/mpc5200_dma.h
@@ -81,4 +81,7 @@ to_psc_dma_stream(struct snd_pcm_substream *substream, struct psc_dma *psc_dma)
 	return &psc_dma->playback;
 }
 
+int mpc5200_audio_dma_create(struct platform_device *op);
+int mpc5200_audio_dma_destroy(struct platform_device *op);
+
 #endif /* __SOUND_SOC_FSL_MPC5200_DMA_H__ */
diff --git a/sound/soc/fsl/mpc5200_psc_ac97.c b/sound/soc/fsl/mpc5200_psc_ac97.c
index ffa00a2..9a09453 100644
--- a/sound/soc/fsl/mpc5200_psc_ac97.c
+++ b/sound/soc/fsl/mpc5200_psc_ac97.c
@@ -278,6 +278,10 @@ static int __devinit psc_ac97_of_probe(struct platform_device *op)
 	struct snd_ac97 ac97;
 	struct mpc52xx_psc __iomem *regs;
 
+	rc = mpc5200_audio_dma_create(op);
+	if (rc != 0)
+		return rc;
+
 	rc = snd_soc_register_dais(&op->dev, psc_ac97_dai, ARRAY_SIZE(psc_ac97_dai));
 	if (rc != 0) {
 		dev_err(&op->dev, "Failed to register DAI\n");
@@ -303,6 +307,7 @@ static int __devinit psc_ac97_of_probe(struct platform_device *op)
 
 static int __devexit psc_ac97_of_remove(struct platform_device *op)
 {
+	mpc5200_audio_dma_destroy(op);
 	snd_soc_unregister_dais(&op->dev, ARRAY_SIZE(psc_ac97_dai));
 	return 0;
 }
diff --git a/sound/soc/fsl/mpc5200_psc_i2s.c b/sound/soc/fsl/mpc5200_psc_i2s.c
index 7b53032..c0b7a23 100644
--- a/sound/soc/fsl/mpc5200_psc_i2s.c
+++ b/sound/soc/fsl/mpc5200_psc_i2s.c
@@ -156,6 +156,10 @@ static int __devinit psc_i2s_of_probe(struct platform_device *op)
 	struct psc_dma *psc_dma;
 	struct mpc52xx_psc __iomem *regs;
 
+	rc = mpc5200_audio_dma_create(op);
+	if (rc != 0)
+		return rc;
+
 	rc = snd_soc_register_dais(&op->dev, psc_i2s_dai, ARRAY_SIZE(psc_i2s_dai));
 	if (rc != 0) {
 		pr_err("Failed to register DAI\n");
@@ -200,6 +204,7 @@ static int __devinit psc_i2s_of_probe(struct platform_device *op)
 
 static int __devexit psc_i2s_of_remove(struct platform_device *op)
 {
+	mpc5200_audio_dma_destroy(op);
 	snd_soc_unregister_dais(&op->dev, ARRAY_SIZE(psc_i2s_dai));
 	return 0;
 }
-- 
1.7.2.5