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ASoC: dwc: Reorder code in preparation for DT support 

Move code that configures the DAI and DMA into a separate function.  This
reduces the size of the dw_i2s_probe function and will make it easier to
add support for device tree to the driver.

Signed-off-by: Andrew Jackson <Andrew.Jackson@arm.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Andrew Jackson 2014-12-19 16:18:07 +00:00 committed by Mark Brown
parent be33465e58
commit afa8603c62
1 changed files with 39 additions and 34 deletions
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73
sound/soc/dwc/designware_i2s.c
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@ -324,13 +324,47 @@ static int dw_i2s_resume(struct snd_soc_dai *dai)
#define dw_i2s_resume NULL
#endif
static void dw_configure_dai_by_pd(struct dw_i2s_dev *dev,
struct snd_soc_dai_driver *dw_i2s_dai,
struct resource *res,
const struct i2s_platform_data *pdata)
{
/* Set DMA slaves info */
dev->play_dma_data.data = pdata->play_dma_data;
dev->capture_dma_data.data = pdata->capture_dma_data;
dev->play_dma_data.addr = res->start + I2S_TXDMA;
dev->capture_dma_data.addr = res->start + I2S_RXDMA;
dev->play_dma_data.max_burst = 16;
dev->capture_dma_data.max_burst = 16;
dev->play_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
dev->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
dev->play_dma_data.filter = pdata->filter;
dev->capture_dma_data.filter = pdata->filter;
if (pdata->cap & DWC_I2S_PLAY) {
dev_dbg(dev->dev, " designware: play supported\n");
dw_i2s_dai->playback.channels_min = MIN_CHANNEL_NUM;
dw_i2s_dai->playback.channels_max = pdata->channel;
dw_i2s_dai->playback.formats = pdata->snd_fmts;
dw_i2s_dai->playback.rates = pdata->snd_rates;
}
if (pdata->cap & DWC_I2S_RECORD) {
dev_dbg(dev->dev, "designware: record supported\n");
dw_i2s_dai->capture.channels_min = MIN_CHANNEL_NUM;
dw_i2s_dai->capture.channels_max = pdata->channel;
dw_i2s_dai->capture.formats = pdata->snd_fmts;
dw_i2s_dai->capture.rates = pdata->snd_rates;
}
}
static int dw_i2s_probe(struct platform_device *pdev)
{
const struct i2s_platform_data *pdata = pdev->dev.platform_data;
struct dw_i2s_dev *dev;
struct resource *res;
int ret;
unsigned int cap;
struct snd_soc_dai_driver *dw_i2s_dai;
if (!pdata) {
@ -357,23 +391,11 @@ static int dw_i2s_probe(struct platform_device *pdev)
if (IS_ERR(dev->i2s_base))
return PTR_ERR(dev->i2s_base);
cap = pdata->cap;
dev->capability = cap;
dev->dev = &pdev->dev;
dw_configure_dai_by_pd(dev, dw_i2s_dai, res, pdata);
dev->capability = pdata->cap;
dev->i2s_clk_cfg = pdata->i2s_clk_cfg;
/* Set DMA slaves info */
dev->play_dma_data.data = pdata->play_dma_data;
dev->capture_dma_data.data = pdata->capture_dma_data;
dev->play_dma_data.addr = res->start + I2S_TXDMA;
dev->capture_dma_data.addr = res->start + I2S_RXDMA;
dev->play_dma_data.max_burst = 16;
dev->capture_dma_data.max_burst = 16;
dev->play_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
dev->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
dev->play_dma_data.filter = pdata->filter;
dev->capture_dma_data.filter = pdata->filter;
dev->clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(dev->clk))
return PTR_ERR(dev->clk);
@ -382,23 +404,6 @@ static int dw_i2s_probe(struct platform_device *pdev)
if (ret < 0)
goto err_clk_put;
if (cap & DWC_I2S_PLAY) {
dev_dbg(&pdev->dev, " designware: play supported\n");
dw_i2s_dai->playback.channels_min = MIN_CHANNEL_NUM;
dw_i2s_dai->playback.channels_max = pdata->channel;
dw_i2s_dai->playback.formats = pdata->snd_fmts;
dw_i2s_dai->playback.rates = pdata->snd_rates;
}
if (cap & DWC_I2S_RECORD) {
dev_dbg(&pdev->dev, "designware: record supported\n");
dw_i2s_dai->capture.channels_min = MIN_CHANNEL_NUM;
dw_i2s_dai->capture.channels_max = pdata->channel;
dw_i2s_dai->capture.formats = pdata->snd_fmts;
dw_i2s_dai->capture.rates = pdata->snd_rates;
}
dev->dev = &pdev->dev;
dev_set_drvdata(&pdev->dev, dev);
ret = snd_soc_register_component(&pdev->dev, &dw_i2s_component,
dw_i2s_dai, 1);