1 files changed, 12 insertions, 14 deletions

diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c
index 9b5c88ac35b9..a59bd352d342 100644
--- a/sound/soc/omap/omap-pcm.c
+++ b/sound/soc/omap/omap-pcm.c
@@ -24,6 +24,7 @@
 
 #include <linux/dma-mapping.h>
 #include <linux/slab.h>
+#include <linux/module.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -198,6 +199,14 @@ static int omap_pcm_prepare(struct snd_pcm_substream *substream)
 			      OMAP_DMA_LAST_IRQ | OMAP_DMA_BLOCK_IRQ);
 	else if (!substream->runtime->no_period_wakeup)
 		omap_enable_dma_irq(prtd->dma_ch, OMAP_DMA_FRAME_IRQ);
+	else {
+		/*
+		 * No period wakeup:
+		 * we need to disable BLOCK_IRQ, which is enabled by the omap
+		 * dma core at request dma time.
+		 */
+		omap_disable_dma_irq(prtd->dma_ch, OMAP_DMA_BLOCK_IRQ);
+	}
 
 	if (!(cpu_class_is_omap1())) {
 		omap_set_dma_src_burst_mode(prtd->dma_ch,
@@ -369,7 +378,6 @@ static void omap_pcm_free_dma_buffers(struct snd_pcm *pcm)
 static int omap_pcm_new(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_card *card = rtd->card->snd_card;
-	struct snd_soc_dai *dai = rtd->cpu_dai;
 	struct snd_pcm *pcm = rtd->pcm;
 	int ret = 0;
 
@@ -378,14 +386,14 @@ static int omap_pcm_new(struct snd_soc_pcm_runtime *rtd)
 	if (!card->dev->coherent_dma_mask)
 		card->dev->coherent_dma_mask = DMA_BIT_MASK(64);
 
-	if (dai->driver->playback.channels_min) {
+	if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
 		ret = omap_pcm_preallocate_dma_buffer(pcm,
 			SNDRV_PCM_STREAM_PLAYBACK);
 		if (ret)
 			goto out;
 	}
 
-	if (dai->driver->capture.channels_min) {
+	if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
 		ret = omap_pcm_preallocate_dma_buffer(pcm,
 			SNDRV_PCM_STREAM_CAPTURE);
 		if (ret)
@@ -424,17 +432,7 @@ static struct platform_driver omap_pcm_driver = {
 	.remove = __devexit_p(omap_pcm_remove),
 };
 
-static int __init snd_omap_pcm_init(void)
-{
-	return platform_driver_register(&omap_pcm_driver);
-}
-module_init(snd_omap_pcm_init);
-
-static void __exit snd_omap_pcm_exit(void)
-{
-	platform_driver_unregister(&omap_pcm_driver);
-}
-module_exit(snd_omap_pcm_exit);
+module_platform_driver(omap_pcm_driver);
 
 MODULE_AUTHOR("Jarkko Nikula <jarkko.nikula@bitmer.com>");
 MODULE_DESCRIPTION("OMAP PCM DMA module");