Switch between DMIC0 and DMIC1 based on recording device selected. This is done by toggling the dmic select gpio.
Signed-off-by: Akshu Agrawal akshu.agrawal@amd.com --- sound/soc/amd/acp3x-rt5682-max9836.c | 53 ++++++++++++++++++++++++---- 1 file changed, 47 insertions(+), 6 deletions(-)
diff --git a/sound/soc/amd/acp3x-rt5682-max9836.c b/sound/soc/amd/acp3x-rt5682-max9836.c index 96fbcd29e3ed..511b8b1722aa 100644 --- a/sound/soc/amd/acp3x-rt5682-max9836.c +++ b/sound/soc/amd/acp3x-rt5682-max9836.c @@ -12,6 +12,7 @@ #include <sound/jack.h> #include <linux/clk.h> #include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/module.h> #include <linux/i2c.h> #include <linux/input.h> @@ -27,6 +28,7 @@ static struct snd_soc_jack pco_jack; static struct clk *rt5682_dai_wclk; static struct clk *rt5682_dai_bclk; +static struct gpio_desc *dmic_sel;
static int acp3x_5682_init(struct snd_soc_pcm_runtime *rtd) { @@ -176,7 +178,7 @@ static int acp3x_max_startup(struct snd_pcm_substream *substream) return rt5682_clk_enable(substream); }
-static int acp3x_ec_startup(struct snd_pcm_substream *substream) +static int acp3x_ec_dmic0_startup(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_card *card = rtd->card; @@ -185,6 +187,23 @@ static int acp3x_ec_startup(struct snd_pcm_substream *substream)
machine->cap_i2s_instance = I2S_BT_INSTANCE; snd_soc_dai_set_bclk_ratio(codec_dai, 64); + if (dmic_sel) + gpiod_set_value(dmic_sel, 0); + + return rt5682_clk_enable(substream); +} + +static int acp3x_ec_dmic1_startup(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_card *card = rtd->card; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct acp3x_platform_info *machine = snd_soc_card_get_drvdata(card); + + machine->cap_i2s_instance = I2S_BT_INSTANCE; + snd_soc_dai_set_bclk_ratio(codec_dai, 64); + if (dmic_sel) + gpiod_set_value(dmic_sel, 1);
return rt5682_clk_enable(substream); } @@ -204,8 +223,13 @@ static const struct snd_soc_ops acp3x_max_play_ops = { .shutdown = rt5682_shutdown, };
-static const struct snd_soc_ops acp3x_ec_cap_ops = { - .startup = acp3x_ec_startup, +static const struct snd_soc_ops acp3x_ec_cap0_ops = { + .startup = acp3x_ec_dmic0_startup, + .shutdown = rt5682_shutdown, +}; + +static const struct snd_soc_ops acp3x_ec_cap1_ops = { + .startup = acp3x_ec_dmic1_startup, .shutdown = rt5682_shutdown, };
@@ -246,12 +270,21 @@ static struct snd_soc_dai_link acp3x_dai_5682_98357[] = { SND_SOC_DAILINK_REG(acp3x_bt, max, platform), }, { - .name = "acp3x-ec-capture", - .stream_name = "Capture", + .name = "acp3x-ec-dmic0-capture", + .stream_name = "Capture DMIC0", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF + | SND_SOC_DAIFMT_CBS_CFS, + .dpcm_capture = 1, + .ops = &acp3x_ec_cap0_ops, + SND_SOC_DAILINK_REG(acp3x_bt, cros_ec, platform), + }, + { + .name = "acp3x-ec-dmic1-capture", + .stream_name = "Capture DMIC1", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS, .dpcm_capture = 1, - .ops = &acp3x_ec_cap_ops, + .ops = &acp3x_ec_cap1_ops, SND_SOC_DAILINK_REG(acp3x_bt, cros_ec, platform), }, }; @@ -302,6 +335,14 @@ static int acp3x_probe(struct platform_device *pdev) acp3x_card.dev = &pdev->dev; platform_set_drvdata(pdev, card); snd_soc_card_set_drvdata(card, machine); + + dmic_sel = devm_gpiod_get(&pdev->dev, "dmic", GPIOD_OUT_LOW); + if (IS_ERR(dmic_sel)) { + dev_err(&pdev->dev, "DMIC gpio failed err=%d\n", + PTR_ERR(dmic_sel)); + return PTR_ERR(dmic_sel); + } + ret = devm_snd_soc_register_card(&pdev->dev, &acp3x_card); if (ret) { dev_err(&pdev->dev,