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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 3cfbf07c6d
("ASoC: qcom: sc7180: Modify machine driver for 2mic")

Signed-off-by: Ajye Huang <ajye_huang@compal.corp-partner.google.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20221102125936.2176748-3-ajye_huang@compal.corp-partner.google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Ajye Huang 2022-11-02 20:59:36 +08:00 committed by Mark Brown
parent f8639c385f
commit e14657c0f0
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 101 additions and 1 deletions
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102
sound/soc/mediatek/mt8186/mt8186-mt6366-rt1019-rt5682s.c
View File

@ -7,6 +7,8 @@
// Author: Jiaxin Yu <jiaxin.yu@mediatek.com>
//
#include <linux/gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/of_device.h>
@ -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;