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| author | Sylwester Nawrocki <s.nawrocki@samsung.com> | 2019-02-07 18:00:10 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-02-12 16:31:42 +0000 |
| commit | 10cbf3507bcb9baa82bf3445502e8ccafaa09fc8 (patch) | |
| tree | c6144e8248120d10a85cc7cfbc80d5cf39db0750 /sound | |
| parent | 51256d348c9af1bf544a4432abc1d5f2fd3ef34b (diff) | |
| download | linux-10cbf3507bcb9baa82bf3445502e8ccafaa09fc8.tar.gz linux-10cbf3507bcb9baa82bf3445502e8ccafaa09fc8.tar.bz2 linux-10cbf3507bcb9baa82bf3445502e8ccafaa09fc8.zip | |
ASoC: dmaengine: Extend use of chan_names provided in custom DMA config
There are currently two ways to specify custom DMA channel names:
- through the SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME flag and
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 <s.nawrocki@samsung.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/soc-generic-dmaengine-pcm.c | 11 |
1 files 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] && - (pcm->flags & SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME)) + ((pcm->flags & SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME) || + (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, |