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ASoC: ti: edma-pcm: Fix for legacy dma_slave_map based channel lookup 

Most of the daVinci devices does not boot with DT. In this case the DMA
channel is looked up with dma_slave_map and for that the chan_names[]
must be configured.

Both McASP and ASP/McBSP uses "tx" and "rx" as channel names, so we can
just do this when the dev->of_node is not valid.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20190830103841.25128-4-peter.ujfalusi@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
alistair/sunxi64-5.4-dsi
Peter Ujfalusi 2019-08-30 13:38:40 +03:00 committed by Mark Brown
parent 2231b2c63f
commit 27b7def93a
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1 changed files with 16 additions and 1 deletions
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17
sound/soc/ti/edma-pcm.c
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@ -39,7 +39,22 @@ static const struct snd_dmaengine_pcm_config edma_dmaengine_pcm_config = {
int edma_pcm_platform_register(struct device *dev)
{
return devm_snd_dmaengine_pcm_register(dev, &edma_dmaengine_pcm_config, 0);
struct snd_dmaengine_pcm_config *config;
if (dev->of_node)
return devm_snd_dmaengine_pcm_register(dev,
&edma_dmaengine_pcm_config, 0);
config = devm_kzalloc(dev, sizeof(*config), GFP_KERNEL);
if (!config)
return -ENOMEM;
*config = edma_dmaengine_pcm_config;
config->chan_names[0] = "tx";
config->chan_names[1] = "rx";
return devm_snd_dmaengine_pcm_register(dev, config, 0);
}
EXPORT_SYMBOL_GPL(edma_pcm_platform_register);