ASoC: ti: edma-pcm: Fix for legacy dma_slave_map based channel lookup (27b7def9) · Commits · 戴 / test

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>

sound/soc/ti/edma-pcm.c

+16 −1

Original line number	Diff line number	Diff line
		@@ -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);

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