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-rw-r--r--arch/arm/plat-samsung/s3c-dma-ops.c13
-rw-r--r--sound/soc/samsung/dma.c7
2 files changed, 18 insertions, 2 deletions
diff --git a/arch/arm/plat-samsung/s3c-dma-ops.c b/arch/arm/plat-samsung/s3c-dma-ops.c
index 0cc40aea3f5..98b10ba67dc 100644
--- a/arch/arm/plat-samsung/s3c-dma-ops.c
+++ b/arch/arm/plat-samsung/s3c-dma-ops.c
@@ -82,7 +82,8 @@ static int s3c_dma_config(unsigned ch, struct samsung_dma_config *param)
static int s3c_dma_prepare(unsigned ch, struct samsung_dma_prep *param)
{
struct cb_data *data;
- int len = (param->cap == DMA_CYCLIC) ? param->period : param->len;
+ dma_addr_t pos = param->buf;
+ dma_addr_t end = param->buf + param->len;
list_for_each_entry(data, &dma_list, node)
if (data->ch == ch)
@@ -94,7 +95,15 @@ static int s3c_dma_prepare(unsigned ch, struct samsung_dma_prep *param)
data->fp_param = param->fp_param;
}
- s3c2410_dma_enqueue(ch, (void *)data, param->buf, len);
+ if (param->cap != DMA_CYCLIC) {
+ s3c2410_dma_enqueue(ch, (void *)data, param->buf, param->len);
+ return 0;
+ }
+
+ while (pos < end) {
+ s3c2410_dma_enqueue(ch, (void *)data, pos, param->period);
+ pos += param->period;
+ }
return 0;
}
diff --git a/sound/soc/samsung/dma.c b/sound/soc/samsung/dma.c
index 21b79262010..6e2b2b4dca5 100644
--- a/sound/soc/samsung/dma.c
+++ b/sound/soc/samsung/dma.c
@@ -90,6 +90,13 @@ static void dma_enqueue(struct snd_pcm_substream *substream)
dma_info.period = prtd->dma_period;
dma_info.len = prtd->dma_period*limit;
+ if (dma_info.cap == DMA_CYCLIC) {
+ dma_info.buf = pos;
+ prtd->params->ops->prepare(prtd->params->ch, &dma_info);
+ prtd->dma_loaded += limit;
+ return;
+ }
+
while (prtd->dma_loaded < limit) {
pr_debug("dma_loaded: %d\n", prtd->dma_loaded);