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SubjectApplied "ASoc: amd: Add DMIC switch capability to machine driver" to the asoc tree
The patch

ASoc: amd: Add DMIC switch capability to machine driver

has been applied to the asoc tree at

https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

From 72c3b2b09fcdaa6a63e17e9a715e2a8236af529a Mon Sep 17 00:00:00 2001
From: Akshu Agrawal <akshu.agrawal@amd.com>
Date: Mon, 2 Mar 2020 13:54:36 +0530
Subject: [PATCH] ASoc: amd: Add DMIC switch capability to machine driver

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>
Link: https://lore.kernel.org/r/20200302082443.51587-1-akshu.agrawal@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
---
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,
--
2.20.1
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