@@ -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);
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> --- sound/soc/ti/edma-pcm.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-)