[alsa-devel] Applied "ASoC: ti: edma-pcm: Fix for legacy dma_slave_map based channel lookup" to the asoc tree

[Mark Brown]

The patch

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

has been applied to the asoc tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.4

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From 27b7def93aaba0838eb90e6b3c3110a856bb09fc Mon Sep 17 00:00:00 2001
From: Peter Ujfalusi <peter.ujfalusi at ti.com>
Date: Fri, 30 Aug 2019 13:38:40 +0300
Subject: [PATCH] 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 at ti.com>
Link: https://lore.kernel.org/r/20190830103841.25128-4-peter.ujfalusi@ti.com
Signed-off-by: Mark Brown <broonie at kernel.org>
---
 sound/soc/ti/edma-pcm.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/sound/soc/ti/edma-pcm.c b/sound/soc/ti/edma-pcm.c
index 3ebea1bd15cb..634b040b65f0 100644
--- a/sound/soc/ti/edma-pcm.c
+++ b/sound/soc/ti/edma-pcm.c
@@ -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);
 
-- 
2.20.1