ASoC: atmel-pcm: dma support based on pcm dmaengine
Specify overrun bit in interrupt mask
Add dmaengine specific routines
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
[voice.shen@atmel.com: adapt to soc dmaengine framework]
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c
index 1705614..1c76634 100644
--- a/sound/soc/atmel/atmel_ssc_dai.c
+++ b/sound/soc/atmel/atmel_ssc_dai.c
@@ -721,6 +721,8 @@
static int asoc_ssc_init(struct device *dev)
{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct ssc_device *ssc = platform_get_drvdata(pdev);
int ret;
ret = snd_soc_register_dai(dev, &atmel_ssc_dai);
@@ -729,7 +731,11 @@
goto err;
}
- ret = atmel_pcm_pdc_platform_register(dev);
+ if (ssc->pdata->use_dma)
+ ret = atmel_pcm_dma_platform_register(dev);
+ else
+ ret = atmel_pcm_pdc_platform_register(dev);
+
if (ret) {
dev_err(dev, "Could not register PCM: %d\n", ret);
goto err_unregister_dai;
@@ -745,7 +751,14 @@
static void asoc_ssc_exit(struct device *dev)
{
- atmel_pcm_pdc_platform_unregister(dev);
+ struct platform_device *pdev = to_platform_device(dev);
+ struct ssc_device *ssc = platform_get_drvdata(pdev);
+
+ if (ssc->pdata->use_dma)
+ atmel_pcm_dma_platform_unregister(dev);
+ else
+ atmel_pcm_pdc_platform_unregister(dev);
+
snd_soc_unregister_dai(dev);
}