When we boot with non-DT mode the damengine will need the channel number and
a filter function in order to get the channel.
The filter_data is filled in the DAI driver while the filter_function will
be provided by the edma-pcm driver.
Signed-off-by: Peter Ujfalusi <peter.ujfal...@ti.com>
---
sound/soc/davinci/davinci-mcasp.c | 21 ++++++++++++++++-----
1 file changed, 16 insertions(+), 5 deletions(-)
diff --git a/sound/soc/davinci/davinci-mcasp.c
b/sound/soc/davinci/davinci-mcasp.c
index 604aa982f5c4..5428615413e2 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -1029,6 +1029,7 @@ nodata:
static int davinci_mcasp_probe(struct platform_device *pdev)
{
struct davinci_pcm_dma_params *dma_params;
+ struct snd_dmaengine_dai_dma_data *dma_data;
struct resource *mem, *ioarea, *res, *dat;
struct davinci_mcasp_pdata *pdata;
struct davinci_mcasp *mcasp;
@@ -1098,6 +1099,7 @@ static int davinci_mcasp_probe(struct platform_device
*pdev)
mcasp->dat_port = true;
dma_params = &mcasp->dma_params[SNDRV_PCM_STREAM_PLAYBACK];
+ dma_data = &mcasp->dma_data[SNDRV_PCM_STREAM_PLAYBACK];
dma_params->asp_chan_q = pdata->asp_chan_q;
dma_params->ram_chan_q = pdata->ram_chan_q;
dma_params->sram_pool = pdata->sram_pool;
@@ -1108,7 +1110,7 @@ static int davinci_mcasp_probe(struct platform_device
*pdev)
dma_params->dma_addr = mem->start + pdata->tx_dma_offset;
/* Unconditional dmaengine stuff */
- mcasp->dma_data[SNDRV_PCM_STREAM_PLAYBACK].addr = dma_params->dma_addr;
+ dma_data->addr = dma_params->dma_addr;
res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
if (res)
@@ -1116,7 +1118,14 @@ static int davinci_mcasp_probe(struct platform_device
*pdev)
else
dma_params->channel = pdata->tx_dma_channel;
+ /* dmaengine filter data for DT and non-DT boot */
+ if (pdev->dev.of_node)
+ dma_data->filter_data = "tx";
+ else
+ dma_data->filter_data = &dma_params->channel;
+
dma_params = &mcasp->dma_params[SNDRV_PCM_STREAM_CAPTURE];
+ dma_data = &mcasp->dma_data[SNDRV_PCM_STREAM_CAPTURE];
dma_params->asp_chan_q = pdata->asp_chan_q;
dma_params->ram_chan_q = pdata->ram_chan_q;
dma_params->sram_pool = pdata->sram_pool;
@@ -1127,7 +1136,7 @@ static int davinci_mcasp_probe(struct platform_device
*pdev)
dma_params->dma_addr = mem->start + pdata->rx_dma_offset;
/* Unconditional dmaengine stuff */
- mcasp->dma_data[SNDRV_PCM_STREAM_CAPTURE].addr = dma_params->dma_addr;
+ dma_data->addr = dma_params->dma_addr;
if (mcasp->version < MCASP_VERSION_3) {
mcasp->fifo_base = DAVINCI_MCASP_V2_AFIFO_BASE;
@@ -1143,9 +1152,11 @@ static int davinci_mcasp_probe(struct platform_device
*pdev)
else
dma_params->channel = pdata->rx_dma_channel;
- /* Unconditional dmaengine stuff */
- mcasp->dma_data[SNDRV_PCM_STREAM_PLAYBACK].filter_data = "tx";
- mcasp->dma_data[SNDRV_PCM_STREAM_CAPTURE].filter_data = "rx";
+ /* dmaengine filter data for DT and non-DT boot */
+ if (pdev->dev.of_node)
+ dma_data->filter_data = "rx";
+ else
+ dma_data->filter_data = &dma_params->channel;
dev_set_drvdata(&pdev->dev, mcasp);
--
1.9.0
--
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