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ASoC: mediatek: mt8183: support WoV

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Add DAI link and pin muxing for wake on voice.

Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20191019143504.4.Ibf012d0cd8679d846213606dc5f426aea1ff590a@changeid
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Tzung-Bi Shih 2019-10-19 15:02:54 +08:00 committed by Mark Brown
parent 0cce736d38
commit 2cc3cd5fdc
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GPG Key ID: 24D68B725D5487D0
2 changed files with 68 additions and 3 deletions
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1
sound/soc/mediatek/Kconfig
View File

@ -125,6 +125,7 @@ config SND_SOC_MT8183_MT6358_TS3A227E_MAX98357A
select SND_SOC_MAX98357A
select SND_SOC_BT_SCO
select SND_SOC_TS3A227E
select SND_SOC_CROS_EC_CODEC
help
This adds ASoC driver for Mediatek MT8183 boards
with the MT6358 TS3A227E MAX98357A audio codec.

70
sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
View File

@ -19,11 +19,12 @@ enum PINCTRL_PIN_STATE {
PIN_STATE_DEFAULT = 0,
PIN_TDM_OUT_ON,
PIN_TDM_OUT_OFF,
PIN_WOV,
PIN_STATE_MAX
};
static const char * const mt8183_pin_str[PIN_STATE_MAX] = {
"default", "aud_tdm_out_on", "aud_tdm_out_off",
"default", "aud_tdm_out_on", "aud_tdm_out_off", "wov",
};
struct mt8183_mt6358_ts3a227_max98357_priv {
@ -142,6 +143,11 @@ SND_SOC_DAILINK_DEFS(playback_hdmi,
DAILINK_COMP_ARRAY(COMP_DUMMY()),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
SND_SOC_DAILINK_DEFS(wake_on_voice,
DAILINK_COMP_ARRAY(COMP_DUMMY()),
DAILINK_COMP_ARRAY(COMP_DUMMY()),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
/* BE */
SND_SOC_DAILINK_DEFS(primary_codec,
DAILINK_COMP_ARRAY(COMP_CPU("ADDA")),
@ -229,6 +235,41 @@ static struct snd_soc_ops mt8183_mt6358_tdm_ops = {
.shutdown = mt8183_mt6358_tdm_shutdown,
};
static int
mt8183_mt6358_ts3a227_max98357_wov_startup(
struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_card *card = rtd->card;
struct mt8183_mt6358_ts3a227_max98357_priv *priv =
snd_soc_card_get_drvdata(card);
return pinctrl_select_state(priv->pinctrl,
priv->pin_states[PIN_WOV]);
}
static void
mt8183_mt6358_ts3a227_max98357_wov_shutdown(
struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_card *card = rtd->card;
struct mt8183_mt6358_ts3a227_max98357_priv *priv =
snd_soc_card_get_drvdata(card);
int ret;
ret = pinctrl_select_state(priv->pinctrl,
priv->pin_states[PIN_STATE_DEFAULT]);
if (ret)
dev_err(card->dev, "%s failed to select state %d\n",
__func__, ret);
}
static const struct snd_soc_ops mt8183_mt6358_ts3a227_max98357_wov_ops = {
.startup = mt8183_mt6358_ts3a227_max98357_wov_startup,
.shutdown = mt8183_mt6358_ts3a227_max98357_wov_shutdown,
};
static struct snd_soc_dai_link
mt8183_mt6358_ts3a227_max98357_dai_links[] = {
/* FE */
@ -306,6 +347,15 @@ mt8183_mt6358_ts3a227_max98357_dai_links[] = {
.dpcm_playback = 1,
SND_SOC_DAILINK_REG(playback_hdmi),
},
{
.name = "Wake on Voice",
.stream_name = "Wake on Voice",
.ignore_suspend = 1,
.ignore = 1,
SND_SOC_DAILINK_REG(wake_on_voice),
.ops = &mt8183_mt6358_ts3a227_max98357_wov_ops,
},
/* BE */
{
.name = "Primary Codec",
@ -429,7 +479,7 @@ static int
mt8183_mt6358_ts3a227_max98357_dev_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = &mt8183_mt6358_ts3a227_max98357_card;
struct device_node *platform_node;
struct device_node *platform_node, *ec_codec;
struct snd_soc_dai_link *dai_link;
struct mt8183_mt6358_ts3a227_max98357_priv *priv;
int ret;
@ -444,10 +494,24 @@ mt8183_mt6358_ts3a227_max98357_dev_probe(struct platform_device *pdev)
return -EINVAL;
}
ec_codec = of_parse_phandle(pdev->dev.of_node, "mediatek,ec-codec", 0);
for_each_card_prelinks(card, i, dai_link) {
if (dai_link->platforms->name)
continue;
dai_link->platforms->of_node = platform_node;
if (ec_codec && strcmp(dai_link->name, "Wake on Voice") == 0) {
dai_link->cpus[0].name = NULL;
dai_link->cpus[0].of_node = ec_codec;
dai_link->cpus[0].dai_name = NULL;
dai_link->codecs[0].name = NULL;
dai_link->codecs[0].of_node = ec_codec;
dai_link->codecs[0].dai_name = "Wake on Voice";
dai_link->platforms[0].of_node = ec_codec;
dai_link->ignore = 0;
} else {
dai_link->platforms->of_node = platform_node;
}
}
mt8183_mt6358_ts3a227_max98357_headset_dev.dlc.of_node =