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Subject[alsa-devel] [PATCH 2/4] ASoC: bt-sco: extend rate and add a general compatible string
Date
Add supports for 16k (wideband BT) and add a general compatible
string "linux,bt-sco"

Signed-off-by: Garlic Tseng <garlic.tseng@mediatek.com>
---
Documentation/devicetree/bindings/sound/bt-sco.txt | 2 +-
sound/soc/codecs/bt-sco.c | 52 +++++++++++++++-------
2 files changed, 37 insertions(+), 17 deletions(-)

diff --git a/Documentation/devicetree/bindings/sound/bt-sco.txt b/Documentation/devicetree/bindings/sound/bt-sco.txt
index 29b8e5d..641edf7 100644
--- a/Documentation/devicetree/bindings/sound/bt-sco.txt
+++ b/Documentation/devicetree/bindings/sound/bt-sco.txt
@@ -4,7 +4,7 @@ This device support generic Bluetooth SCO link.

Required properties:

- - compatible : "delta,dfbmcs320"
+ - compatible : "delta,dfbmcs320" or "linux,bt-sco"

Example:

diff --git a/sound/soc/codecs/bt-sco.c b/sound/soc/codecs/bt-sco.c
index b084ad1..2a8d0ee 100644
--- a/sound/soc/codecs/bt-sco.c
+++ b/sound/soc/codecs/bt-sco.c
@@ -25,22 +25,41 @@ static const struct snd_soc_dapm_route bt_sco_routes[] = {
{ "TX", NULL, "Playback" },
};

-static struct snd_soc_dai_driver bt_sco_dai = {
- .name = "bt-sco-pcm",
- .playback = {
- .stream_name = "Playback",
- .channels_min = 1,
- .channels_max = 1,
- .rates = SNDRV_PCM_RATE_8000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,
- },
- .capture = {
- .stream_name = "Capture",
- .channels_min = 1,
- .channels_max = 1,
- .rates = SNDRV_PCM_RATE_8000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,
+static struct snd_soc_dai_driver bt_sco_dai[] = {
+ {
+ .name = "bt-sco-pcm",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 1,
+ .rates = SNDRV_PCM_RATE_8000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 1,
+ .rates = SNDRV_PCM_RATE_8000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
},
+ {
+ .name = "bt-sco-pcm-wb",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 1,
+ .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 1,
+ .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ }
};

static struct snd_soc_codec_driver soc_codec_dev_bt_sco = {
@@ -53,7 +72,7 @@ static struct snd_soc_codec_driver soc_codec_dev_bt_sco = {
static int bt_sco_probe(struct platform_device *pdev)
{
return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_bt_sco,
- &bt_sco_dai, 1);
+ bt_sco_dai, ARRAY_SIZE(bt_sco_dai));
}

static int bt_sco_remove(struct platform_device *pdev)
@@ -77,6 +96,7 @@ MODULE_DEVICE_TABLE(platform, bt_sco_driver_ids);
#if defined(CONFIG_OF)
static const struct of_device_id bt_sco_codec_of_match[] = {
{ .compatible = "delta,dfbmcs320", },
+ { .compatible = "linux,bt-sco", },
{},
};
MODULE_DEVICE_TABLE(of, bt_sco_codec_of_match);
--
1.9.1
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