ASoC: AMD: Add machine driver for ST DA7219 MAX98357

	help

	 This option enables ACP DMA support on AMD platform.

config SND_SOC_AMD_CZ_DA7219MX98357_MACH

	tristate "AMD CZ support for DA7219 and MAX9835"

	select SND_SOC_DA7219

	select SND_SOC_MAX98357A

	select SND_SOC_ADAU7002

	depends on SND_SOC_AMD_ACP && I2C

	help

	 This option enables machine driver for DA7219 and MAX9835.

config SND_SOC_AMD_CZ_RT5645_MACH

	tristate "AMD CZ support for RT5645"

	select SND_SOC_RT5645

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

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

/*

 * Machine driver for AMD ACP Audio engine using DA7219 & MAX98357 codec

 *

 * Copyright 2017 Advanced Micro Devices, Inc.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and associated documentation files (the "Software"),

 * to deal in the Software without restriction, including without limitation

 * the rights to use, copy, modify, merge, publish, distribute, sublicense,

 * and/or sell copies of the Software, and to permit persons to whom the

 * Software is furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR

 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,

 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

 * OTHER DEALINGS IN THE SOFTWARE.

 *

 */

#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/gpio.h>

#include <linux/module.h>

#include <linux/i2c.h>

#include <linux/acpi.h>

#include "../codecs/da7219.h"

#include "../codecs/da7219-aad.h"

#define CZ_PLAT_CLK 24000000

#define MCLK_RATE 24576000

#define DUAL_CHANNEL		2

static struct snd_soc_jack cz_jack;

static int cz_da7219_init(struct snd_soc_pcm_runtime *rtd)

{

	int ret;

	struct snd_soc_card *card = rtd->card;

	struct snd_soc_codec *codec = rtd->codec;

	struct snd_soc_dai *codec_dai = rtd->codec_dai;

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

	ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK,

				     CZ_PLAT_CLK, SND_SOC_CLOCK_IN);

	if (ret < 0) {

		dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);

		return ret;

	}

	ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_PLL,

				  CZ_PLAT_CLK, MCLK_RATE);

	if (ret < 0) {

		dev_err(rtd->dev, "can't set codec pll: %d\n", ret);

		return ret;

	}

	ret = snd_soc_card_jack_new(card, "Headset Jack",

				SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |

				SND_JACK_BTN_0 | SND_JACK_BTN_1 |

				SND_JACK_BTN_2 | SND_JACK_BTN_3,

				&cz_jack, NULL, 0);

	if (ret) {

		dev_err(card->dev, "HP jack creation failed %d\n", ret);

		return ret;

	}

	da7219_aad_jack_det(codec, &cz_jack);

	return 0;

}

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 cz_fe_startup(struct snd_pcm_substream *substream)

{

	struct snd_pcm_runtime *runtime = substream->runtime;

	/*

	 * On this platform for PCM device we support stereo

	 */

	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 0;

}

static struct snd_soc_ops cz_da7219_cap_ops = {

	.startup = cz_fe_startup,

};

static struct snd_soc_dai_link cz_dai_7219_98357[] = {

	{

		.name = "amd-da7219-play",

		.stream_name = "Playback",

		.platform_name = "acp_audio_dma.0.auto",

		.cpu_dai_name = "designware-i2s.3.auto",

		.codec_dai_name = "da7219-hifi",

		.codec_name = "i2c-DLGS7219:00",

		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF

				| SND_SOC_DAIFMT_CBM_CFM,

		.init = cz_da7219_init,

		.dpcm_playback = 1,

	},

	{

		.name = "amd-da7219-cap",

		.stream_name = "Capture",

		.platform_name = "acp_audio_dma.0.auto",

		.cpu_dai_name = "designware-i2s.4.auto",

		.codec_dai_name = "da7219-hifi",

		.codec_name = "i2c-DLGS7219:00",

		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF

				| SND_SOC_DAIFMT_CBM_CFM,

		.dpcm_capture = 1,

		.ops = &cz_da7219_cap_ops,

	},

	{

		.name = "amd-max98357-play",

		.stream_name = "HiFi Playback",

		.platform_name = "acp_audio_dma.0.auto",

		.cpu_dai_name = "designware-i2s.1.auto",

		.codec_dai_name = "HiFi",

		.codec_name = "MX98357A:00",

		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF

				| SND_SOC_DAIFMT_CBM_CFM,

		.dpcm_playback = 1,

	},

	{

		.name = "dmic",

		.stream_name = "DMIC Capture",

		.platform_name = "acp_audio_dma.0.auto",

		.cpu_dai_name = "designware-i2s.2.auto",

		.codec_dai_name = "adau7002-hifi",

		.codec_name = "ADAU7002:00",

		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF

				| SND_SOC_DAIFMT_CBM_CFM,

		.dpcm_capture = 1,

	},

};

static const struct snd_soc_dapm_widget cz_widgets[] = {

	SND_SOC_DAPM_HP("Headphones", NULL),

	SND_SOC_DAPM_SPK("Speakers", NULL),

	SND_SOC_DAPM_MIC("Headset Mic", NULL),

	SND_SOC_DAPM_MIC("Int Mic", NULL),

};

static const struct snd_soc_dapm_route cz_audio_route[] = {

	{"Headphones", NULL, "HPL"},

	{"Headphones", NULL, "HPR"},

	{"MIC", NULL, "Headset Mic"},

	{"Speakers", NULL, "Speaker"},

	{"PDM_DAT", NULL, "Int Mic"},

};

static const struct snd_kcontrol_new cz_mc_controls[] = {

	SOC_DAPM_PIN_SWITCH("Headphones"),

	SOC_DAPM_PIN_SWITCH("Speakers"),

	SOC_DAPM_PIN_SWITCH("Headset Mic"),

	SOC_DAPM_PIN_SWITCH("Int Mic"),

};

static struct snd_soc_card cz_card = {

	.name = "acpd7219m98357",

	.owner = THIS_MODULE,

	.dai_link = cz_dai_7219_98357,

	.num_links = ARRAY_SIZE(cz_dai_7219_98357),

	.dapm_widgets = cz_widgets,

	.num_dapm_widgets = ARRAY_SIZE(cz_widgets),

	.dapm_routes = cz_audio_route,

	.num_dapm_routes = ARRAY_SIZE(cz_audio_route),

	.controls = cz_mc_controls,

	.num_controls = ARRAY_SIZE(cz_mc_controls),

};

static int cz_probe(struct platform_device *pdev)

{

	int ret;

	struct snd_soc_card *card;

	card = &cz_card;

	cz_card.dev = &pdev->dev;

	platform_set_drvdata(pdev, card);

	ret = devm_snd_soc_register_card(&pdev->dev, &cz_card);

	if (ret) {

		dev_err(&pdev->dev,

				"devm_snd_soc_register_card(%s) failed: %d\n",

				cz_card.name, ret);

		return ret;

	}

	return 0;

}

static const struct acpi_device_id cz_audio_acpi_match[] = {

	{ "AMD7219", 0 },

	{},

};

MODULE_DEVICE_TABLE(acpi, cz_audio_acpi_match);

static struct platform_driver cz_pcm_driver = {

	.driver = {

		.name = "cz-da7219-max98357a",

		.acpi_match_table = ACPI_PTR(cz_audio_acpi_match),

		.pm = &snd_soc_pm_ops,

	},

	.probe = cz_probe,

};

module_platform_driver(cz_pcm_driver);

MODULE_AUTHOR("akshu.agrawal@amd.com");

MODULE_DESCRIPTION("DA7219 & MAX98357A audio support");

MODULE_LICENSE("GPL v2");