Unverified Commit 6d1c1a73 authored by Bard Liao's avatar Bard Liao Committed by Mark Brown
Browse files

soundwire: Intel: add trigger callback 



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: default avatarBard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: default avatarRander Wang <rander.wang@intel.com>
Reviewed-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: default avatarRanjani Sridharan <ranjani.sridharan@linux.intel.com>
Acked-by: default avatarVinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20220708061312.25878-2-yung-chuan.liao@linux.intel.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 4e90651e

drivers/soundwire/intel.c

+9 −0
Original line number Diff line number Diff line
@@ -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",

include/linux/soundwire/sdw_intel.h

+1 −0
Original line number Diff line number Diff line
@@ -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);

};



/**