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soundwire: Intel: add trigger callback

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When a pipeline is split into FE and BE parts, the BE pipeline may need to
be triggered separately in the BE trigger op. So add the trigger callback
in the link_res ops that will be invoked during BE DAI trigger.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20220708061312.25878-2-yung-chuan.liao@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Bard Liao 2022-07-08 14:13:11 +08:00 committed by Mark Brown
parent 4e90651e52
commit 6d1c1a73e1
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 10 additions and 0 deletions
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9
drivers/soundwire/intel.c
View File

@ -1004,9 +1004,18 @@ static int intel_trigger(struct snd_pcm_substream *substream, int cmd, struct sn
{
struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai);
struct sdw_intel *sdw = cdns_to_intel(cdns);
struct sdw_intel_link_res *res = sdw->link_res;
struct sdw_cdns_dma_data *dma;
int ret = 0;
/*
* The .trigger callback is used to send required IPC to audio
* firmware. The .free_stream callback will still be called
* by intel_free_stream() in the TRIGGER_SUSPEND case.
*/
if (res->ops && res->ops->trigger)
res->ops->trigger(dai, cmd, substream->stream);
dma = snd_soc_dai_get_dma_data(dai, substream);
if (!dma) {
dev_err(dai->dev, "failed to get dma data in %s\n",

1
include/linux/soundwire/sdw_intel.h
View File

@ -121,6 +121,7 @@ struct sdw_intel_ops {
struct sdw_intel_stream_params_data *params_data);
int (*free_stream)(struct device *dev,
struct sdw_intel_stream_free_data *free_data);
int (*trigger)(struct snd_soc_dai *dai, int cmd, int stream);
};
/**