From 2cc3cd5fdc8ba07ba590204a3a6f6d16289d25e5 Mon Sep 17 00:00:00 2001 From: Tzung-Bi Shih Date: Sat, 19 Oct 2019 15:02:54 +0800 Subject: [PATCH] ASoC: mediatek: mt8183: support WoV Add DAI link and pin muxing for wake on voice. Signed-off-by: Tzung-Bi Shih Link: https://lore.kernel.org/r/20191019143504.4.Ibf012d0cd8679d846213606dc5f426aea1ff590a@changeid Signed-off-by: Mark Brown --- sound/soc/mediatek/Kconfig | 1 + .../mt8183/mt8183-mt6358-ts3a227-max98357.c | 70 ++++++++++++++++++- 2 files changed, 68 insertions(+), 3 deletions(-) diff --git a/sound/soc/mediatek/Kconfig b/sound/soc/mediatek/Kconfig index 111e44b64b38..8b29f3979899 100644 --- a/sound/soc/mediatek/Kconfig +++ b/sound/soc/mediatek/Kconfig @@ -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. diff --git a/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c b/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c index bb9cdc0d6552..0555f7d73d05 100644 --- a/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c +++ b/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c @@ -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 = -- 2.30.2