From: Bard Liao <yung-chuan.liao@linux.intel.com>
To: alsa-devel@alsa-project.org, vkoul@kernel.org
Cc: vinod.koul@linaro.org, linux-kernel@vger.kernel.org,
tiwai@suse.de, broonie@kernel.org, gregkh@linuxfoundation.org,
jank@cadence.com, srinivas.kandagatla@linaro.org,
rander.wang@linux.intel.com, ranjani.sridharan@linux.intel.com,
hui.wang@canonical.com, pierre-louis.bossart@linux.intel.com,
sanyog.r.kale@intel.com, mengdong.lin@intel.com,
bard.liao@intel.com
Subject: [PATCH 7/7] soundwire: intel: remove stream handling from .prepare and .hw_free
Date: Tue, 1 Sep 2020 23:02:40 +0800 [thread overview]
Message-ID: <20200901150240.19288-8-yung-chuan.liao@linux.intel.com> (raw)
In-Reply-To: <20200901150240.19288-1-yung-chuan.liao@linux.intel.com>
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
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 <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
---
drivers/soundwire/intel.c | 19 +++++++------------
1 file changed, 7 insertions(+), 12 deletions(-)
diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c
index 39d3186335ac..631c425ba430 100644
--- a/drivers/soundwire/intel.c
+++ b/drivers/soundwire/intel.c
@@ -931,7 +931,7 @@ 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) {
@@ -967,13 +967,8 @@ 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;
}
@@ -989,12 +984,12 @@ 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",
--
2.17.1
next prev parent reply other threads:[~2020-09-02 2:57 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-01 15:02 [PATCH 0/7] ASoC: soundwire: Move sdw stream operations to Bard Liao
2020-09-01 15:02 ` [PATCH 1/7] ASoC: soc-dai: clarify return value for get_sdw_stream() Bard Liao
2020-09-01 15:02 ` [PATCH 2/7] soundwire: stream: fix NULL/IS_ERR confusion Bard Liao
2020-09-01 15:02 ` [PATCH 3/7] soundwire: intel: fix NULL/ERR_PTR confusion Bard Liao
2020-09-01 15:02 ` [PATCH 4/7] ASOC: Intel: sof_sdw: add dailink .trigger callback Bard Liao
2020-09-01 15:02 ` [PATCH 5/7] ASOC: Intel: sof_sdw: add dailink .prepare and .hw_free callback Bard Liao
2020-09-01 15:02 ` [PATCH 6/7] soundwire: intel: remove .trigger operation Bard Liao
2020-09-01 15:02 ` Bard Liao [this message]
2020-09-03 10:42 ` [PATCH 0/7] ASoC: soundwire: Move sdw stream operations to Vinod Koul
2020-09-03 14:05 ` Pierre-Louis Bossart
2020-09-04 5:10 ` Vinod Koul
2020-09-04 8:47 ` Liao, Bard
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