From e14657c0f0022e02c8f25fa9c56afae3d3db9e77 Mon Sep 17 00:00:00 2001 From: Ajye Huang Date: Wed, 2 Nov 2022 20:59:36 +0800 Subject: [PATCH] ASoC: mediatek: mt8186-rt5682: Modify machine driver for two DMICs case Having two DMICs, a front DMIC and a Rear DMIC, but only host audio input AUX port0 is used for these two Dmics. A "dmic-gpios" property is used for a mixer control to switch the dmic signal source between the Front and Rear Dmic. Refer to this one as an example, commit 3cfbf07c6d27 ("ASoC: qcom: sc7180: Modify machine driver for 2mic") Signed-off-by: Ajye Huang Reviewed-by: AngeloGioacchino Del Regno Link: https://lore.kernel.org/r/20221102125936.2176748-3-ajye_huang@compal.corp-partner.google.com Signed-off-by: Mark Brown --- .../mediatek/mt8186/mt8186-mt6366-rt1019-rt5682s.c | 102 ++++++++++++++++++++- 1 file changed, 101 insertions(+), 1 deletion(-) diff --git a/sound/soc/mediatek/mt8186/mt8186-mt6366-rt1019-rt5682s.c b/sound/soc/mediatek/mt8186/mt8186-mt6366-rt1019-rt5682s.c index 2414c5b..16d834f 100644 --- a/sound/soc/mediatek/mt8186/mt8186-mt6366-rt1019-rt5682s.c +++ b/sound/soc/mediatek/mt8186/mt8186-mt6366-rt1019-rt5682s.c @@ -7,6 +7,8 @@ // Author: Jiaxin Yu // +#include +#include #include #include #include @@ -39,6 +41,8 @@ struct mt8186_mt6366_rt1019_rt5682s_priv { struct snd_soc_jack headset_jack, hdmi_jack; + struct gpio_desc *dmic_sel; + int dmic_switch; }; /* Headset jack detection DAPM pins */ @@ -68,6 +72,94 @@ static struct snd_soc_codec_conf mt8186_mt6366_rt1019_rt5682s_codec_conf[] = { }, }; +static int dmic_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); + struct mtk_soc_card_data *soc_card_data = + snd_soc_card_get_drvdata(dapm->card); + struct mt8186_mt6366_rt1019_rt5682s_priv *priv = soc_card_data->mach_priv; + + ucontrol->value.integer.value[0] = priv->dmic_switch; + return 0; +} + +static int dmic_set(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); + struct mtk_soc_card_data *soc_card_data = + snd_soc_card_get_drvdata(dapm->card); + struct mt8186_mt6366_rt1019_rt5682s_priv *priv = soc_card_data->mach_priv; + + priv->dmic_switch = ucontrol->value.integer.value[0]; + if (priv->dmic_sel) { + gpiod_set_value(priv->dmic_sel, priv->dmic_switch); + dev_info(dapm->card->dev, "dmic_set_value %d\n", + priv->dmic_switch); + } + return 0; +} + +static const char * const dmic_mux_text[] = { + "Front Mic", + "Rear Mic", +}; + +static SOC_ENUM_SINGLE_DECL(mt8186_dmic_enum, + SND_SOC_NOPM, 0, dmic_mux_text); + +static const struct snd_kcontrol_new mt8186_dmic_mux_control = + SOC_DAPM_ENUM_EXT("DMIC Select Mux", mt8186_dmic_enum, + dmic_get, dmic_set); + +static const struct snd_soc_dapm_widget dmic_widgets[] = { + SND_SOC_DAPM_MIC("DMIC", NULL), + SND_SOC_DAPM_MUX("Dmic Mux", SND_SOC_NOPM, 0, 0, &mt8186_dmic_mux_control), +}; + +static const struct snd_soc_dapm_route dmic_map[] = { + /* digital mics */ + {"Dmic Mux", "Front Mic", "DMIC"}, + {"Dmic Mux", "Rear Mic", "DMIC"}, +}; + +static int primary_codec_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_card *card = rtd->card; + struct mtk_soc_card_data *soc_card_data = snd_soc_card_get_drvdata(card); + struct mt8186_mt6366_rt1019_rt5682s_priv *priv = soc_card_data->mach_priv; + int ret; + + ret = mt8186_mt6366_init(rtd); + + if (ret) { + dev_err(card->dev, "mt8186_mt6366_init failed: %d\n", ret); + return ret; + } + + if (!priv->dmic_sel) { + dev_info(card->dev, "dmic_sel is null\n"); + return ret; + } + + ret = snd_soc_dapm_new_controls(&card->dapm, dmic_widgets, + ARRAY_SIZE(dmic_widgets)); + if (ret) { + dev_err(card->dev, "DMic widget addition failed: %d\n", ret); + /* Don't need to add routes if widget addition failed */ + return ret; + } + + ret = snd_soc_dapm_add_routes(&card->dapm, dmic_map, + ARRAY_SIZE(dmic_map)); + + if (ret) + dev_err(card->dev, "DMic map addition failed: %d\n", ret); + + return ret; +} + static int mt8186_rt5682s_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_component *cmpnt_afe = @@ -775,7 +867,7 @@ static struct snd_soc_dai_link mt8186_mt6366_rt1019_rt5682s_dai_links[] = { .dpcm_playback = 1, .dpcm_capture = 1, .ignore_suspend = 1, - .init = mt8186_mt6366_init, + .init = primary_codec_init, SND_SOC_DAILINK_REG(adda), }, { @@ -1015,6 +1107,14 @@ static int mt8186_mt6366_rt1019_rt5682s_dev_probe(struct platform_device *pdev) soc_card_data->mach_priv = mach_priv; + mach_priv->dmic_sel = devm_gpiod_get_optional(&pdev->dev, + "dmic", GPIOD_OUT_LOW); + if (IS_ERR(mach_priv->dmic_sel)) { + dev_err(&pdev->dev, "DMIC gpio failed err=%ld\n", + PTR_ERR(mach_priv->dmic_sel)); + return PTR_ERR(mach_priv->dmic_sel); + } + adsp_node = of_parse_phandle(pdev->dev.of_node, "mediatek,adsp", 0); if (adsp_node) { struct mtk_sof_priv *sof_priv; -- 2.7.4