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Diffstat (limited to 'sound/soc/imx/imx-pcm-dma-mx2.c')
-rw-r--r--sound/soc/imx/imx-pcm-dma-mx2.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/sound/soc/imx/imx-pcm-dma-mx2.c b/sound/soc/imx/imx-pcm-dma-mx2.c
index 1cf2fe8..5780c9b 100644
--- a/sound/soc/imx/imx-pcm-dma-mx2.c
+++ b/sound/soc/imx/imx-pcm-dma-mx2.c
@@ -88,11 +88,13 @@ static int imx_ssi_dma_alloc(struct snd_pcm_substream *substream,
iprtd->dma_data.dma_request = dma_params->dma;
/* Try to grab a DMA channel */
- dma_cap_zero(mask);
- dma_cap_set(DMA_SLAVE, mask);
- iprtd->dma_chan = dma_request_channel(mask, filter, iprtd);
- if (!iprtd->dma_chan)
- return -EINVAL;
+ if (!iprtd->dma_chan) {
+ dma_cap_zero(mask);
+ dma_cap_set(DMA_SLAVE, mask);
+ iprtd->dma_chan = dma_request_channel(mask, filter, iprtd);
+ if (!iprtd->dma_chan)
+ return -EINVAL;
+ }
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
@@ -107,12 +109,12 @@ static int imx_ssi_dma_alloc(struct snd_pcm_substream *substream,
}
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- slave_config.direction = DMA_TO_DEVICE;
+ slave_config.direction = DMA_MEM_TO_DEV;
slave_config.dst_addr = dma_params->dma_addr;
slave_config.dst_addr_width = buswidth;
slave_config.dst_maxburst = dma_params->burstsize;
} else {
- slave_config.direction = DMA_FROM_DEVICE;
+ slave_config.direction = DMA_DEV_TO_MEM;
slave_config.src_addr = dma_params->dma_addr;
slave_config.src_addr_width = buswidth;
slave_config.src_maxburst = dma_params->burstsize;
@@ -159,7 +161,7 @@ static int snd_imx_pcm_hw_params(struct snd_pcm_substream *substream,
iprtd->period_bytes * iprtd->periods,
iprtd->period_bytes,
substream->stream == SNDRV_PCM_STREAM_PLAYBACK ?
- DMA_TO_DEVICE : DMA_FROM_DEVICE);
+ DMA_MEM_TO_DEV : DMA_DEV_TO_MEM);
if (!iprtd->desc) {
dev_err(&chan->dev->device, "cannot prepare slave dma\n");
return -EINVAL;
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