[lkml]   [2019]   [Feb]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Patch in this message
SubjectApplied "ASoC: dmaengine: Extend use of chan_names provided in custom DMA config" to the asoc tree
The patch

ASoC: dmaengine: Extend use of chan_names provided in custom DMA config

has been applied to the asoc tree at

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.


From 10cbf3507bcb9baa82bf3445502e8ccafaa09fc8 Mon Sep 17 00:00:00 2001
From: Sylwester Nawrocki <>
Date: Thu, 7 Feb 2019 18:00:10 +0100
Subject: [PATCH] ASoC: dmaengine: Extend use of chan_names provided in custom
DMA config

There are currently two ways to specify custom DMA channel names:
snd_dmaengine_dai_dma_data data structure,
- through chan_names field of struct snd_dmaengine_pcm_config.

In order to replace the DAI DMA data method with the custom DMA config
one on non-DT platforms the dmaengine_pcm_new() function is extended
to also consider channel names specified in the custom DMA config.
If both config->chan_names and dma_data->chan_name are provided
the former will be used.

Signed-off-by: Sylwester Nawrocki <>
Acked-by: Krzysztof Kozlowski <>
Signed-off-by: Mark Brown <>
sound/soc/soc-generic-dmaengine-pcm.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c
index 6d7638c1233d..1b44e363c50c 100644
--- a/sound/soc/soc-generic-dmaengine-pcm.c
+++ b/sound/soc/soc-generic-dmaengine-pcm.c
@@ -288,9 +288,16 @@ static int dmaengine_pcm_new(struct snd_soc_pcm_runtime *rtd)
dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);

if (!pcm->chan[i] &&
+ (config && config->chan_names[i]))) {
+ const char *chan_name = dma_data->chan_name;
+ if (config && config->chan_names[i])
+ chan_name = config->chan_names[i];
pcm->chan[i] = dma_request_slave_channel(dev,
- dma_data->chan_name);
+ chan_name);
+ }

if (!pcm->chan[i] && (pcm->flags & SND_DMAENGINE_PCM_FLAG_COMPAT)) {
pcm->chan[i] = dmaengine_pcm_compat_request_channel(rtd,
 \ /
  Last update: 2019-02-12 18:00    [W:0.298 / U:0.832 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site