[PATCH 0/4] ASoC: fsl: Add stream names to CPU DAI drivers for DPCM

DPCM needs extra dapm routes in the machine driver to route audio
between Front-End and Back-End. In order to differ the stream names
in the route map from CODECs, we here add specific stream names to
all Freescale ASoC CPU DAI drivers so that we can implement ASRC via
DPCM to each of them.

Document for DPCM: ./Documentation/sound/alsa/soc/DPCM.txt

Nicolin Chen (4):
  ASoC: fsl_esai: Add stream names for DPCM usage
  ASoC: fsl_sai: Add stream names for DPCM usage
  ASoC: fsl_spdif: Add stream names for DPCM usage
  ASoC: fsl_ssi: Add stream names for DPCM usage

 sound/soc/fsl/fsl_esai.c  | 2 ++
 sound/soc/fsl/fsl_sai.c   | 2 ++
 sound/soc/fsl/fsl_spdif.c | 2 ++
 sound/soc/fsl/fsl_ssi.c   | 2 ++
 4 files changed, 8 insertions(+)

-- 
1.8.4

DPCM needs extra dapm routes in the machine driver to route audio
between Front-End and Back-End. In order to differ the stream names
in the route map from CODECs, we here add specific stream names to
ESAI driver so that we can implement ASRC via DPCM to it.

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
---
 sound/soc/fsl/fsl_esai.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/fsl/fsl_esai.c b/sound/soc/fsl/fsl_esai.c
index d719caf..72d154e 100644
--- a/sound/soc/fsl/fsl_esai.c
+++ b/sound/soc/fsl/fsl_esai.c

@@ -624,12 +624,14 @@ static int fsl_esai_dai_probe(struct snd_soc_dai *dai)
 static struct snd_soc_dai_driver fsl_esai_dai = {
 	.probe = fsl_esai_dai_probe,
 	.playback = {
+		.stream_name = "CPU-Playback",
 		.channels_min = 1,
 		.channels_max = 12,
 		.rates = FSL_ESAI_RATES,
 		.formats = FSL_ESAI_FORMATS,
 	},
 	.capture = {
+		.stream_name = "CPU-Capture",
 		.channels_min = 1,
 		.channels_max = 8,
 		.rates = FSL_ESAI_RATES,

-- 
1.8.4

DPCM needs extra dapm routes in the machine driver to route audio
between Front-End and Back-End. In order to differ the stream names
in the route map from CODECs, we here add specific stream names to
SPDIF driver so that we can implement ASRC via DPCM to it.

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
---
 sound/soc/fsl/fsl_spdif.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
index 495b9f3..70acfe4 100644
--- a/sound/soc/fsl/fsl_spdif.c
+++ b/sound/soc/fsl/fsl_spdif.c

@@ -975,12 +975,14 @@ static int fsl_spdif_dai_probe(struct snd_soc_dai *dai)
 static struct snd_soc_dai_driver fsl_spdif_dai = {
 	.probe = &fsl_spdif_dai_probe,
 	.playback = {
+		.stream_name = "CPU-Playback",
 		.channels_min = 2,
 		.channels_max = 2,
 		.rates = FSL_SPDIF_RATES_PLAYBACK,
 		.formats = FSL_SPDIF_FORMATS_PLAYBACK,
 	},
 	.capture = {
+		.stream_name = "CPU-Capture",
 		.channels_min = 2,
 		.channels_max = 2,
 		.rates = FSL_SPDIF_RATES_CAPTURE,

-- 
1.8.4

DPCM needs extra dapm routes in the machine driver to route audio
between Front-End and Back-End. In order to differ the stream names
in the route map from CODECs, we here add specific stream names to
SAI driver so that we can implement ASRC via DPCM to it.

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
---
 sound/soc/fsl/fsl_sai.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c
index 364410b..faa0497 100644
--- a/sound/soc/fsl/fsl_sai.c
+++ b/sound/soc/fsl/fsl_sai.c

@@ -455,12 +455,14 @@ static int fsl_sai_dai_probe(struct snd_soc_dai *cpu_dai)
 static struct snd_soc_dai_driver fsl_sai_dai = {
 	.probe = fsl_sai_dai_probe,
 	.playback = {
+		.stream_name = "CPU-Playback",
 		.channels_min = 1,
 		.channels_max = 2,
 		.rates = SNDRV_PCM_RATE_8000_96000,
 		.formats = FSL_SAI_FORMATS,
 	},
 	.capture = {
+		.stream_name = "CPU-Capture",
 		.channels_min = 1,
 		.channels_max = 2,
 		.rates = SNDRV_PCM_RATE_8000_96000,

-- 
1.8.4

DPCM needs extra dapm routes in the machine driver to route audio
between Front-End and Back-End. In order to differ the stream names
in the route map from CODECs, we here add specific stream names to
SSI driver so that we can implement ASRC via DPCM to it.

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
---
 sound/soc/fsl/fsl_ssi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 3043d57..87eb577 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c

@@ -1032,12 +1032,14 @@ static const struct snd_soc_dai_ops fsl_ssi_dai_ops = {
 static struct snd_soc_dai_driver fsl_ssi_dai_template = {
 	.probe = fsl_ssi_dai_probe,
 	.playback = {
+		.stream_name = "CPU-Playback",
 		.channels_min = 1,
 		.channels_max = 2,
 		.rates = FSLSSI_I2S_RATES,
 		.formats = FSLSSI_I2S_FORMATS,
 	},
 	.capture = {
+		.stream_name = "CPU-Capture",
 		.channels_min = 1,
 		.channels_max = 2,
 		.rates = FSLSSI_I2S_RATES,

-- 
1.8.4

Nicolin Chen wrote:

DPCM needs extra dapm routes in the machine driver to route audio
between Front-End and Back-End. In order to differ the stream names
in the route map from CODECs, we here add specific stream names to
SSI driver so that we can implement ASRC via DPCM to it.

Signed-off-by: Nicolin Chen<nicoleotsuka@gmail.com>

Acked-by: Timur Tabi <redacted>

On Wed, Jul 30, 2014 at 11:10:25AM +0800, Nicolin Chen wrote:

DPCM needs extra dapm routes in the machine driver to route audio
between Front-End and Back-End. In order to differ the stream names
in the route map from CODECs, we here add specific stream names to
all Freescale ASoC CPU DAI drivers so that we can implement ASRC via
DPCM to each of them.

Applied all, thanks.