Commit 26039153 authored by Ricardo Neri's avatar Ricardo Neri Committed by Liam Girdwood
Browse files

ASoC: OMAP: HDMI: Create a structure for private data of the CPU DAI 



Create a struct hdmi_priv to store the relevant data of the CPU DAI
driver. As more data is added to the driver, having all the data
in the same location eases its handling. At the moment, only the DMA
configuration parameters are included in the structure.

Also, the required memory is allocated using devm_kzalloc rather than
using a static global variable.

Signed-off-by: default avatarRicardo Neri <ricardo.neri@ti.com>
Acked-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: default avatarLiam Girdwood <lrg@ti.com>
parent 0ff5ee87

sound/soc/omap/omap-hdmi.c

+19 −9
Original line number Diff line number Diff line
@@ -37,9 +37,8 @@ 


#define DRV_NAME "omap-hdmi-audio-dai"



static struct omap_pcm_dma_data omap_hdmi_dai_dma_params = {

	.name = "HDMI playback",

	.sync_mode = OMAP_DMA_SYNC_PACKET,

struct hdmi_priv {

	struct omap_pcm_dma_data dma_params;

};



static int omap_hdmi_dai_startup(struct snd_pcm_substream *substream,
@@ -62,23 +61,24 @@ static int omap_hdmi_dai_hw_params(struct snd_pcm_substream *substream, 
				    struct snd_pcm_hw_params *params,

				    struct snd_soc_dai *dai)

{

	struct hdmi_priv *priv = snd_soc_dai_get_drvdata(dai);

	int err = 0;



	switch (params_format(params)) {

	case SNDRV_PCM_FORMAT_S16_LE:

		omap_hdmi_dai_dma_params.packet_size = 16;

		priv->dma_params.packet_size = 16;

		break;

	case SNDRV_PCM_FORMAT_S24_LE:

		omap_hdmi_dai_dma_params.packet_size = 32;

		priv->dma_params.packet_size = 32;

		break;

	default:

		err = -EINVAL;

	}



	omap_hdmi_dai_dma_params.data_type = OMAP_DMA_DATA_TYPE_S32;

	priv->dma_params.data_type = OMAP_DMA_DATA_TYPE_S32;



	snd_soc_dai_set_dma_data(dai, substream,

				 &omap_hdmi_dai_dma_params);

				 &priv->dma_params);



	return err;

}
@@ -102,6 +102,13 @@ static __devinit int omap_hdmi_probe(struct platform_device *pdev) 
{

	int ret;

	struct resource *hdmi_rsrc;

	struct hdmi_priv *hdmi_data;



	hdmi_data = devm_kzalloc(&pdev->dev, sizeof(*hdmi_data), GFP_KERNEL);

	if (hdmi_data == NULL) {

		dev_err(&pdev->dev, "Cannot allocate memory for HDMI data\n");

		return -ENOMEM;

	}



	hdmi_rsrc = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (!hdmi_rsrc) {
@@ -109,7 +116,7 @@ static __devinit int omap_hdmi_probe(struct platform_device *pdev) 
		return -ENODEV;

	}



	omap_hdmi_dai_dma_params.port_addr =  hdmi_rsrc->start

	hdmi_data->dma_params.port_addr =  hdmi_rsrc->start

		+ OMAP_HDMI_AUDIO_DMA_PORT;



	hdmi_rsrc = platform_get_resource(pdev, IORESOURCE_DMA, 0);
@@ -118,8 +125,11 @@ static __devinit int omap_hdmi_probe(struct platform_device *pdev) 
		return -ENODEV;

	}



	omap_hdmi_dai_dma_params.dma_req =  hdmi_rsrc->start;

	hdmi_data->dma_params.dma_req =  hdmi_rsrc->start;

	hdmi_data->dma_params.name = "HDMI playback";

	hdmi_data->dma_params.sync_mode = OMAP_DMA_SYNC_PACKET;



	dev_set_drvdata(&pdev->dev, hdmi_data);

	ret = snd_soc_register_dai(&pdev->dev, &omap_hdmi_dai);

	return ret;

}

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