Commit 5204d496 authored by Chaithrika U S's avatar Chaithrika U S Committed by Mark Brown
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ASoC: Introduce platform driver model for dm644x, dm355 



Introduce the platform driver model to get platform data for dm355 and dm644x.
Register platform driver and acquire the resources in the probe function Since
the platform specific code had been moved from machine driver to dm<soc>.c

Signed-off-by: default avatarNaresh Medisetty <naresh@ti.com>
Signed-off-by: default avatarChaithrika U S <chaithrika@ti.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 74b8f955

sound/soc/davinci/davinci-i2s.c

+67 −50
Original line number Diff line number Diff line
@@ -436,16 +436,40 @@ static int davinci_i2s_trigger(struct snd_pcm_substream *substream, int cmd, 
	return ret;

}



static int davinci_i2s_probe(struct platform_device *pdev,

			     struct snd_soc_dai *dai)

#define DAVINCI_I2S_RATES	SNDRV_PCM_RATE_8000_96000



static struct snd_soc_dai_ops davinci_i2s_dai_ops = {

	.startup 	= davinci_i2s_startup,

	.trigger	= davinci_i2s_trigger,

	.hw_params	= davinci_i2s_hw_params,

	.set_fmt	= davinci_i2s_set_dai_fmt,



};



struct snd_soc_dai davinci_i2s_dai = {

	.name = "davinci-i2s",

	.id = 0,

	.playback = {

		.channels_min = 2,

		.channels_max = 2,

		.rates = DAVINCI_I2S_RATES,

		.formats = SNDRV_PCM_FMTBIT_S16_LE,},

	.capture = {

		.channels_min = 2,

		.channels_max = 2,

		.rates = DAVINCI_I2S_RATES,

		.formats = SNDRV_PCM_FMTBIT_S16_LE,},

	.ops = &davinci_i2s_dai_ops,



};

EXPORT_SYMBOL_GPL(davinci_i2s_dai);



static int davinci_i2s_probe(struct platform_device *pdev)

{

	struct snd_soc_device *socdev = platform_get_drvdata(pdev);

	struct snd_soc_card *card = socdev->card;

	struct snd_soc_dai *cpu_dai = card->dai_link->cpu_dai;

	struct snd_platform_data *pdata = pdev->dev.platform_data;

	struct davinci_mcbsp_dev *dev;

	struct resource *mem, *ioarea;

	struct evm_snd_platform_data *pdata;

	int ret;

	struct resource *mem, *ioarea, *res;

	int ret = 0;



	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (!mem) {
@@ -466,9 +490,7 @@ static int davinci_i2s_probe(struct platform_device *pdev, 
		goto err_release_region;

	}



	cpu_dai->private_data = dev;



	dev->clk = clk_get(&pdev->dev, NULL);

	dev->clk = clk_get(&pdev->dev, pdata->clk_name);

	if (IS_ERR(dev->clk)) {

		ret = -ENODEV;

		goto err_free_mem;
@@ -476,18 +498,35 @@ static int davinci_i2s_probe(struct platform_device *pdev, 
	clk_enable(dev->clk);



	dev->base = (void __iomem *)IO_ADDRESS(mem->start);

	pdata = pdev->dev.platform_data;



	dev->dma_params[SNDRV_PCM_STREAM_PLAYBACK] = &davinci_i2s_pcm_out;

	dev->dma_params[SNDRV_PCM_STREAM_PLAYBACK]->channel = pdata->tx_dma_ch;

	dev->dma_params[SNDRV_PCM_STREAM_PLAYBACK]->dma_addr =

	    (dma_addr_t)(io_v2p(dev->base) + DAVINCI_MCBSP_DXR_REG);



	dev->dma_params[SNDRV_PCM_STREAM_CAPTURE] = &davinci_i2s_pcm_in;

	dev->dma_params[SNDRV_PCM_STREAM_CAPTURE]->channel = pdata->rx_dma_ch;

	dev->dma_params[SNDRV_PCM_STREAM_CAPTURE]->dma_addr =

	    (dma_addr_t)(io_v2p(dev->base) + DAVINCI_MCBSP_DRR_REG);



	/* first TX, then RX */

	res = platform_get_resource(pdev, IORESOURCE_DMA, 0);

	if (!res) {

		dev_err(&pdev->dev, "no DMA resource\n");

		goto err_free_mem;

	}

	dev->dma_params[SNDRV_PCM_STREAM_PLAYBACK]->channel = res->start;



	res = platform_get_resource(pdev, IORESOURCE_DMA, 1);

	if (!res) {

		dev_err(&pdev->dev, "no DMA resource\n");

		goto err_free_mem;

	}

	dev->dma_params[SNDRV_PCM_STREAM_CAPTURE]->channel = res->start;



	davinci_i2s_dai.private_data = dev;

	ret = snd_soc_register_dai(&davinci_i2s_dai);

	if (ret != 0)

		goto err_free_mem;



	return 0;



err_free_mem:
@@ -498,62 +537,40 @@ err_release_region: 
	return ret;

}



static void davinci_i2s_remove(struct platform_device *pdev,

			       struct snd_soc_dai *dai)

static int davinci_i2s_remove(struct platform_device *pdev)

{

	struct snd_soc_device *socdev = platform_get_drvdata(pdev);

	struct snd_soc_card *card = socdev->card;

	struct snd_soc_dai *cpu_dai = card->dai_link->cpu_dai;

	struct davinci_mcbsp_dev *dev = cpu_dai->private_data;

	struct davinci_mcbsp_dev *dev = davinci_i2s_dai.private_data;

	struct resource *mem;



	snd_soc_unregister_dai(&davinci_i2s_dai);

	clk_disable(dev->clk);

	clk_put(dev->clk);

	dev->clk = NULL;



	kfree(dev);



	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	release_mem_region(mem->start, (mem->end - mem->start) + 1);

}



#define DAVINCI_I2S_RATES	SNDRV_PCM_RATE_8000_96000



static struct snd_soc_dai_ops davinci_i2s_dai_ops = {

	.startup	= davinci_i2s_startup,

	.trigger	= davinci_i2s_trigger,

	.hw_params	= davinci_i2s_hw_params,

	.set_fmt	= davinci_i2s_set_dai_fmt,

};

	return 0;

}



struct snd_soc_dai davinci_i2s_dai = {

	.name = "davinci-i2s",

	.id = 0,

static struct platform_driver davinci_mcbsp_driver = {

	.probe		= davinci_i2s_probe,

	.remove		= davinci_i2s_remove,

	.playback = {

		.channels_min = 2,

		.channels_max = 2,

		.rates = DAVINCI_I2S_RATES,

		.formats = SNDRV_PCM_FMTBIT_S16_LE,},

	.capture = {

		.channels_min = 2,

		.channels_max = 2,

		.rates = DAVINCI_I2S_RATES,

		.formats = SNDRV_PCM_FMTBIT_S16_LE,},

	.ops = &davinci_i2s_dai_ops,

	.driver		= {

		.name	= "davinci-asp",

		.owner	= THIS_MODULE,

	},

};

EXPORT_SYMBOL_GPL(davinci_i2s_dai);



static int __init davinci_i2s_init(void)

{

	return snd_soc_register_dai(&davinci_i2s_dai);

	return platform_driver_register(&davinci_mcbsp_driver);

}

module_init(davinci_i2s_init);



static void __exit davinci_i2s_exit(void)

{

	snd_soc_unregister_dai(&davinci_i2s_dai);

	platform_driver_unregister(&davinci_mcbsp_driver);

}

module_exit(davinci_i2s_exit);

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