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authorClaudiu Beznea <claudiu.beznea@microchip.com>2023-02-28 13:01:43 +0200
committerMark Brown <broonie@kernel.org>2023-02-28 13:58:48 +0000
commit54fc4b72b630e1cb92a21140084c6852babbb234 (patch)
tree5991c1f2fa87be3b1199e40687bd5e42a3910010 /sound
parentfb1847cc460c127b12720119eae5f438ffc62e85 (diff)
ASoC: soc-pcm: add option to start DMA after DAI
Add option to start DMA component after DAI trigger. This is done by filling the new struct snd_soc_component_driver::start_dma_last. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20230228110145.3770525-2-claudiu.beznea@microchip.com Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/soc-pcm.c27
1 files changed, 22 insertions, 5 deletions
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 005b179a770a..5eb056b942ce 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1088,22 +1088,39 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
{
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
- int ret = -EINVAL, _ret = 0;
+ struct snd_soc_component *component;
+ int ret = -EINVAL, _ret = 0, start_dma_last = 0, i;
int rollback = 0;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ /* Do we need to start dma last? */
+ for_each_rtd_components(rtd, i, component) {
+ if (component->driver->start_dma_last) {
+ start_dma_last = 1;
+ break;
+ }
+ }
+
ret = snd_soc_link_trigger(substream, cmd, 0);
if (ret < 0)
goto start_err;
- ret = snd_soc_pcm_component_trigger(substream, cmd, 0);
- if (ret < 0)
- goto start_err;
+ if (start_dma_last) {
+ ret = snd_soc_pcm_dai_trigger(substream, cmd, 0);
+ if (ret < 0)
+ goto start_err;
+
+ ret = snd_soc_pcm_component_trigger(substream, cmd, 0);
+ } else {
+ ret = snd_soc_pcm_component_trigger(substream, cmd, 0);
+ if (ret < 0)
+ goto start_err;
- ret = snd_soc_pcm_dai_trigger(substream, cmd, 0);
+ ret = snd_soc_pcm_dai_trigger(substream, cmd, 0);
+ }
start_err:
if (ret < 0)
rollback = 1;