From 244eb888f9ab86854fc2c1d726cebfd7efbe780c Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Fri, 4 Sep 2020 04:47:39 +0800 Subject: soundwire: intel: remove stream handling from .prepare and .hw_free Now that the stream is handled at the dai-link level (in the machine driver), we can remove the stream handling at the dai level. We still need these callbacks to perform dai-level resource handling (i.e. addition/removal of a master). Signed-off-by: Pierre-Louis Bossart Signed-off-by: Bard Liao Link: https://lore.kernel.org/r/20200903204739.31206-5-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul --- drivers/soundwire/intel.c | 19 +++++++------------ 1 file changed, 7 insertions(+), 12 deletions(-) (limited to 'drivers/soundwire') diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c index 05de8c44449f..e047910d73f5 100644 --- a/drivers/soundwire/intel.c +++ b/drivers/soundwire/intel.c @@ -951,7 +951,7 @@ static int intel_prepare(struct snd_pcm_substream *substream, struct sdw_intel *sdw = cdns_to_intel(cdns); struct sdw_cdns_dma_data *dma; int ch, dir; - int ret; + int ret = 0; dma = snd_soc_dai_get_dma_data(dai, substream); if (!dma) { @@ -987,13 +987,8 @@ static int intel_prepare(struct snd_pcm_substream *substream, dma->hw_params, sdw->instance, dma->pdi->intel_alh_id); - if (ret) - goto err; } - ret = sdw_prepare_stream(dma->stream); - -err: return ret; } @@ -1009,12 +1004,12 @@ intel_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) if (!dma) return -EIO; - ret = sdw_deprepare_stream(dma->stream); - if (ret) { - dev_err(dai->dev, "sdw_deprepare_stream: failed %d", ret); - return ret; - } - + /* + * The sdw stream state will transition to RELEASED when stream-> + * master_list is empty. So the stream state will transition to + * DEPREPARED for the first cpu-dai and to RELEASED for the last + * cpu-dai. + */ ret = sdw_stream_remove_master(&cdns->bus, dma->stream); if (ret < 0) { dev_err(dai->dev, "remove master from stream %s failed: %d\n", -- cgit v1.2.3