diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/plat-samsung/s3c-dma-ops.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/arm/plat-samsung/s3c-dma-ops.c b/arch/arm/plat-samsung/s3c-dma-ops.c index 0cc40aea3f5a..98b10ba67dc7 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; } |