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ASoC: amd: Add machine driver for Raven based platform
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Add machine driver for Raven based platform using
RT5682 + MAX9836 + CROS_EC codecs

Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
Link: https://lore.kernel.org/r/20200217050515.3847-1-akshu.agrawal@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Akshu Agrawal authored and Mark Brown committed Feb 26, 2020
1 parent f5e056e commit 6b8e4e7
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10 changes: 10 additions & 0 deletions sound/soc/amd/Kconfig
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Expand Up @@ -26,3 +26,13 @@ config SND_SOC_AMD_ACP3x
depends on X86 && PCI
help
This option enables ACP v3.x I2S support on AMD platform

config SND_SOC_AMD_RV_RT5682_MACH
tristate "AMD RV support for RT5682"
select SND_SOC_RT5682
select SND_SOC_MAX98357A
select SND_SOC_CROS_EC_CODEC
select I2C_CROS_EC_TUNNEL
depends on SND_SOC_AMD_ACP3x && I2C
help
This option enables machine driver for RT5682 and MAX9835.
2 changes: 2 additions & 0 deletions sound/soc/amd/Makefile
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Expand Up @@ -2,8 +2,10 @@
acp_audio_dma-objs := acp-pcm-dma.o
snd-soc-acp-da7219mx98357-mach-objs := acp-da7219-max98357a.o
snd-soc-acp-rt5645-mach-objs := acp-rt5645.o
snd-soc-acp-rt5682-mach-objs := acp3x-rt5682-max9836.o

obj-$(CONFIG_SND_SOC_AMD_ACP) += acp_audio_dma.o
obj-$(CONFIG_SND_SOC_AMD_CZ_DA7219MX98357_MACH) += snd-soc-acp-da7219mx98357-mach.o
obj-$(CONFIG_SND_SOC_AMD_CZ_RT5645_MACH) += snd-soc-acp-rt5645-mach.o
obj-$(CONFIG_SND_SOC_AMD_ACP3x) += raven/
obj-$(CONFIG_SND_SOC_AMD_RV_RT5682_MACH) += snd-soc-acp-rt5682-mach.o
334 changes: 334 additions & 0 deletions sound/soc/amd/acp3x-rt5682-max9836.c
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// SPDX-License-Identifier: GPL-2.0+
//
// Machine driver for AMD ACP Audio engine using DA7219 & MAX98357 codec.
//
//Copyright 2016 Advanced Micro Devices, Inc.

#include <sound/core.h>
#include <sound/soc.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc-dapm.h>
#include <sound/jack.h>
#include <linux/clk.h>
#include <linux/gpio.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/acpi.h>

#include "raven/acp3x.h"
#include "../codecs/rt5682.h"

#define PCO_PLAT_CLK 48000000
#define RT5682_PLL_FREQ (48000 * 512)
#define DUAL_CHANNEL 2

static struct snd_soc_jack pco_jack;
static struct clk *rt5682_dai_wclk;
static struct clk *rt5682_dai_bclk;

static int acp3x_5682_init(struct snd_soc_pcm_runtime *rtd)
{
int ret;
struct snd_soc_card *card = rtd->card;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
struct snd_soc_component *component = codec_dai->component;

dev_info(rtd->dev, "codec dai name = %s\n", codec_dai->name);

/* set rt5682 dai fmt */
ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
| SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBM_CFM);
if (ret < 0) {
dev_err(rtd->card->dev,
"Failed to set rt5682 dai fmt: %d\n", ret);
return ret;
}

/* set codec PLL */
ret = snd_soc_dai_set_pll(codec_dai, RT5682_PLL2, RT5682_PLL2_S_MCLK,
PCO_PLAT_CLK, RT5682_PLL_FREQ);
if (ret < 0) {
dev_err(rtd->dev, "can't set rt5682 PLL: %d\n", ret);
return ret;
}

/* Set codec sysclk */
ret = snd_soc_dai_set_sysclk(codec_dai, RT5682_SCLK_S_PLL2,
RT5682_PLL_FREQ, SND_SOC_CLOCK_IN);
if (ret < 0) {
dev_err(rtd->dev,
"Failed to set rt5682 SYSCLK: %d\n", ret);
return ret;
}

/* Set tdm/i2s1 master bclk ratio */
ret = snd_soc_dai_set_bclk_ratio(codec_dai, 64);
if (ret < 0) {
dev_err(rtd->dev,
"Failed to set rt5682 tdm bclk ratio: %d\n", ret);
return ret;
}

rt5682_dai_wclk = clk_get(component->dev, "rt5682-dai-wclk");
rt5682_dai_bclk = clk_get(component->dev, "rt5682-dai-bclk");

ret = snd_soc_card_jack_new(card, "Headset Jack",
SND_JACK_HEADSET | SND_JACK_LINEOUT |
SND_JACK_BTN_0 | SND_JACK_BTN_1 |
SND_JACK_BTN_2 | SND_JACK_BTN_3,
&pco_jack, NULL, 0);
if (ret) {
dev_err(card->dev, "HP jack creation failed %d\n", ret);
return ret;
}

snd_jack_set_key(pco_jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
snd_jack_set_key(pco_jack.jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
snd_jack_set_key(pco_jack.jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
snd_jack_set_key(pco_jack.jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);

ret = snd_soc_component_set_jack(component, &pco_jack, NULL);
if (ret) {
dev_err(rtd->dev, "Headset Jack call-back failed: %d\n", ret);
return ret;
}

return ret;
}

static int rt5682_clk_enable(struct snd_pcm_substream *substream)
{
int ret = 0;
struct snd_soc_pcm_runtime *rtd = substream->private_data;

/* RT5682 will support only 48K output with 48M mclk */
clk_set_rate(rt5682_dai_wclk, 48000);
clk_set_rate(rt5682_dai_bclk, 48000 * 64);
ret = clk_prepare_enable(rt5682_dai_wclk);
if (ret < 0) {
dev_err(rtd->dev, "can't enable wclk %d\n", ret);
return ret;
}

return ret;
}

static void rt5682_clk_disable(void)
{
clk_disable_unprepare(rt5682_dai_wclk);
}

static const unsigned int channels[] = {
DUAL_CHANNEL,
};

static const unsigned int rates[] = {
48000,
};

static const struct snd_pcm_hw_constraint_list constraints_rates = {
.count = ARRAY_SIZE(rates),
.list = rates,
.mask = 0,
};

static const struct snd_pcm_hw_constraint_list constraints_channels = {
.count = ARRAY_SIZE(channels),
.list = channels,
.mask = 0,
};

static int acp3x_5682_startup(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_card *card = rtd->card;
struct acp3x_platform_info *machine = snd_soc_card_get_drvdata(card);

machine->play_i2s_instance = I2S_SP_INSTANCE;
machine->cap_i2s_instance = I2S_SP_INSTANCE;

runtime->hw.channels_max = DUAL_CHANNEL;
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
&constraints_channels);
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
&constraints_rates);
return rt5682_clk_enable(substream);
}

static int acp3x_max_startup(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_card *card = rtd->card;
struct acp3x_platform_info *machine = snd_soc_card_get_drvdata(card);

machine->play_i2s_instance = I2S_BT_INSTANCE;

runtime->hw.channels_max = DUAL_CHANNEL;
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
&constraints_channels);
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
&constraints_rates);
return rt5682_clk_enable(substream);
}

static int acp3x_ec_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);

return rt5682_clk_enable(substream);
}

static void rt5682_shutdown(struct snd_pcm_substream *substream)
{
rt5682_clk_disable();
}

static const struct snd_soc_ops acp3x_5682_ops = {
.startup = acp3x_5682_startup,
.shutdown = rt5682_shutdown,
};

static const struct snd_soc_ops acp3x_max_play_ops = {
.startup = acp3x_max_startup,
.shutdown = rt5682_shutdown,
};

static const struct snd_soc_ops acp3x_ec_cap_ops = {
.startup = acp3x_ec_startup,
.shutdown = rt5682_shutdown,
};

SND_SOC_DAILINK_DEF(acp3x_i2s,
DAILINK_COMP_ARRAY(COMP_CPU("acp3x_i2s_playcap.0")));
SND_SOC_DAILINK_DEF(acp3x_bt,
DAILINK_COMP_ARRAY(COMP_CPU("acp3x_i2s_playcap.2")));

SND_SOC_DAILINK_DEF(rt5682,
DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10EC5682:00", "rt5682-aif1")));
SND_SOC_DAILINK_DEF(max,
DAILINK_COMP_ARRAY(COMP_CODEC("MX98357A:00", "HiFi")));
SND_SOC_DAILINK_DEF(cros_ec,
DAILINK_COMP_ARRAY(COMP_CODEC("GOOG0013:00", "EC Codec I2S RX")));

SND_SOC_DAILINK_DEF(platform,
DAILINK_COMP_ARRAY(COMP_PLATFORM("acp3x_rv_i2s_dma.0")));

static struct snd_soc_dai_link acp3x_dai_5682_98357[] = {
{
.name = "acp3x-5682-play",
.stream_name = "Playback",
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBM_CFM,
.init = acp3x_5682_init,
.dpcm_playback = 1,
.dpcm_capture = 1,
.ops = &acp3x_5682_ops,
SND_SOC_DAILINK_REG(acp3x_i2s, rt5682, platform),
},
{
.name = "acp3x-max98357-play",
.stream_name = "HiFi Playback",
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBM_CFM,
.dpcm_playback = 1,
.ops = &acp3x_max_play_ops,
SND_SOC_DAILINK_REG(acp3x_bt, max, platform),
},
{
.name = "acp3x-ec-capture",
.stream_name = "Capture",
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBS_CFS,
.dpcm_capture = 1,
.ops = &acp3x_ec_cap_ops,
SND_SOC_DAILINK_REG(acp3x_bt, cros_ec, platform),
},
};

static const struct snd_soc_dapm_widget acp3x_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", NULL),
SND_SOC_DAPM_SPK("Spk", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
};

static const struct snd_soc_dapm_route acp3x_audio_route[] = {
{"Headphone Jack", NULL, "HPOL"},
{"Headphone Jack", NULL, "HPOR"},
{"IN1P", NULL, "Headset Mic"},
{"Spk", NULL, "Speaker"},
};

static const struct snd_kcontrol_new acp3x_mc_controls[] = {
SOC_DAPM_PIN_SWITCH("Headphone Jack"),
SOC_DAPM_PIN_SWITCH("Spk"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
};

static struct snd_soc_card acp3x_card = {
.name = "acp3xalc5682m98357",
.owner = THIS_MODULE,
.dai_link = acp3x_dai_5682_98357,
.num_links = ARRAY_SIZE(acp3x_dai_5682_98357),
.dapm_widgets = acp3x_widgets,
.num_dapm_widgets = ARRAY_SIZE(acp3x_widgets),
.dapm_routes = acp3x_audio_route,
.num_dapm_routes = ARRAY_SIZE(acp3x_audio_route),
.controls = acp3x_mc_controls,
.num_controls = ARRAY_SIZE(acp3x_mc_controls),
};

static int acp3x_probe(struct platform_device *pdev)
{
int ret;
struct snd_soc_card *card;
struct acp3x_platform_info *machine;

machine = devm_kzalloc(&pdev->dev, sizeof(*machine), GFP_KERNEL);
if (!machine)
return -ENOMEM;

card = &acp3x_card;
acp3x_card.dev = &pdev->dev;
platform_set_drvdata(pdev, card);
snd_soc_card_set_drvdata(card, machine);
ret = devm_snd_soc_register_card(&pdev->dev, &acp3x_card);
if (ret) {
dev_err(&pdev->dev,
"devm_snd_soc_register_card(%s) failed: %d\n",
acp3x_card.name, ret);
return ret;
}
return 0;
}

static const struct acpi_device_id acp3x_audio_acpi_match[] = {
{ "AMDI5682", 0 },
{},
};
MODULE_DEVICE_TABLE(acpi, acp3x_audio_acpi_match);

static struct platform_driver acp3x_audio = {
.driver = {
.name = "acp3x-alc5682-max98357",
.acpi_match_table = ACPI_PTR(acp3x_audio_acpi_match),
.pm = &snd_soc_pm_ops,
},
.probe = acp3x_probe,
};

module_platform_driver(acp3x_audio);

MODULE_AUTHOR("akshu.agrawal@amd.com");
MODULE_DESCRIPTION("ALC5682 & MAX98357 audio support");
MODULE_LICENSE("GPL v2");

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