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Commit 0f83f929 authored by Koro Chen's avatar Koro Chen Committed by Mark Brown
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ASoC: mediatek: Add machine driver for ALC5650 codec 



This is the DPCM based machine driver with rt5650

Signed-off-by: default avatarNicolas Boichat <drinkcat@chromium.org>
Signed-off-by: default avatarKoro Chen <koro.chen@mediatek.com>
Signed-off-by: default avatarPC Liao <pc.liao@mediatek.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 8174b35f

Documentation/devicetree/bindings/sound/mt8173-rt5650.txt

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MT8173 with RT5650 CODECS



Required properties:

- compatible : "mediatek,mt8173-rt5650"

- mediatek,audio-codec: the phandles of rt5650 codecs

- mediatek,platform: the phandle of MT8173 ASoC platform



Example:



	sound {

		compatible = "mediatek,mt8173-rt5650";

		mediatek,audio-codec = <&rt5650>;

		mediatek,platform = <&afe>;

	};

sound/soc/mediatek/Kconfig

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@@ -17,6 +17,16 @@ config SND_SOC_MT8173_MAX98090 
	  Select Y if you have such device.

	  If unsure select "N".



config SND_SOC_MT8173_RT5650

        tristate "ASoC Audio driver for MT8173 with RT5650 codec"

        depends on SND_SOC_MEDIATEK && I2C

        select SND_SOC_RT5645

        help

          This adds ASoC driver for Mediatek MT8173 boards

          with the RT5650 audio codec.

          Select Y if you have such device.

          If unsure select "N".



config SND_SOC_MT8173_RT5650_RT5676

	tristate "ASoC Audio driver for MT8173 with RT5650 RT5676 codecs"

	depends on SND_SOC_MEDIATEK && I2C

sound/soc/mediatek/Makefile

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@@ -3,3 +3,4 @@ obj-$(CONFIG_SND_SOC_MEDIATEK) += mtk-afe-pcm.o 
# Machine support

obj-$(CONFIG_SND_SOC_MT8173_MAX98090) += mt8173-max98090.o

obj-$(CONFIG_SND_SOC_MT8173_RT5650_RT5676) += mt8173-rt5650-rt5676.o

obj-$(CONFIG_SND_SOC_MT8173_RT5650) += mt8173-rt5650.o

sound/soc/mediatek/mt8173-rt5650.c

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/*

 * mt8173-rt5650.c  --  MT8173 machine driver with RT5650 codecs

 *

 * Copyright (c) 2016 MediaTek Inc.

 * Author: Koro Chen <koro.chen@mediatek.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and

 * only version 2 as published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 */



#include <linux/module.h>

#include <linux/gpio.h>

#include <linux/of_gpio.h>

#include <sound/soc.h>

#include <sound/jack.h>

#include "../codecs/rt5645.h"



#define MCLK_FOR_CODECS		12288000



static const struct snd_soc_dapm_widget mt8173_rt5650_widgets[] = {

	SND_SOC_DAPM_SPK("Speaker", NULL),

	SND_SOC_DAPM_MIC("Int Mic", NULL),

	SND_SOC_DAPM_HP("Headphone", NULL),

	SND_SOC_DAPM_MIC("Headset Mic", NULL),

};



static const struct snd_soc_dapm_route mt8173_rt5650_routes[] = {

	{"Speaker", NULL, "SPOL"},

	{"Speaker", NULL, "SPOR"},

	{"DMIC L1", NULL, "Int Mic"},

	{"DMIC R1", NULL, "Int Mic"},

	{"Headphone", NULL, "HPOL"},

	{"Headphone", NULL, "HPOR"},

	{"Headset Mic", NULL, "micbias1"},

	{"Headset Mic", NULL, "micbias2"},

	{"IN1P", NULL, "Headset Mic"},

	{"IN1N", NULL, "Headset Mic"},

};



static const struct snd_kcontrol_new mt8173_rt5650_controls[] = {

	SOC_DAPM_PIN_SWITCH("Speaker"),

	SOC_DAPM_PIN_SWITCH("Int Mic"),

	SOC_DAPM_PIN_SWITCH("Headphone"),

	SOC_DAPM_PIN_SWITCH("Headset Mic"),

};



static int mt8173_rt5650_hw_params(struct snd_pcm_substream *substream,

				   struct snd_pcm_hw_params *params)

{

	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	int i, ret;



	for (i = 0; i < rtd->num_codecs; i++) {

		struct snd_soc_dai *codec_dai = rtd->codec_dais[i];



		/* pll from mclk 12.288M */

		ret = snd_soc_dai_set_pll(codec_dai, 0, 0, MCLK_FOR_CODECS,

					  params_rate(params) * 512);

		if (ret)

			return ret;



		/* sysclk from pll */

		ret = snd_soc_dai_set_sysclk(codec_dai, 1,

					     params_rate(params) * 512,

					     SND_SOC_CLOCK_IN);

		if (ret)

			return ret;

	}

	return 0;

}



static struct snd_soc_ops mt8173_rt5650_ops = {

	.hw_params = mt8173_rt5650_hw_params,

};



static struct snd_soc_jack mt8173_rt5650_jack;



static int mt8173_rt5650_init(struct snd_soc_pcm_runtime *runtime)

{

	struct snd_soc_card *card = runtime->card;

	struct snd_soc_codec *codec = runtime->codec_dais[0]->codec;

	int ret;



	rt5645_sel_asrc_clk_src(codec,

				RT5645_DA_STEREO_FILTER |

				RT5645_AD_STEREO_FILTER,

				RT5645_CLK_SEL_I2S1_ASRC);

	/* enable jack detection */

	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,

				    &mt8173_rt5650_jack, NULL, 0);

	if (ret) {

		dev_err(card->dev, "Can't new Headset Jack %d\n", ret);

		return ret;

	}



	return rt5645_set_jack_detect(codec,

				      &mt8173_rt5650_jack,

				      &mt8173_rt5650_jack,

				      &mt8173_rt5650_jack);

}



static struct snd_soc_dai_link_component mt8173_rt5650_codecs[] = {

	{

		.dai_name = "rt5645-aif1",

	},

};



enum {

	DAI_LINK_PLAYBACK,

	DAI_LINK_CAPTURE,

	DAI_LINK_CODEC_I2S,

};



/* Digital audio interface glue - connects codec <---> CPU */

static struct snd_soc_dai_link mt8173_rt5650_dais[] = {

	/* Front End DAI links */

	[DAI_LINK_PLAYBACK] = {

		.name = "rt5650 Playback",

		.stream_name = "rt5650 Playback",

		.cpu_dai_name = "DL1",

		.codec_name = "snd-soc-dummy",

		.codec_dai_name = "snd-soc-dummy-dai",

		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},

		.dynamic = 1,

		.dpcm_playback = 1,

	},

	[DAI_LINK_CAPTURE] = {

		.name = "rt5650 Capture",

		.stream_name = "rt5650 Capture",

		.cpu_dai_name = "VUL",

		.codec_name = "snd-soc-dummy",

		.codec_dai_name = "snd-soc-dummy-dai",

		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},

		.dynamic = 1,

		.dpcm_capture = 1,

	},

	/* Back End DAI links */

	[DAI_LINK_CODEC_I2S] = {

		.name = "Codec",

		.cpu_dai_name = "I2S",

		.no_pcm = 1,

		.codecs = mt8173_rt5650_codecs,

		.num_codecs = 1,

		.init = mt8173_rt5650_init,

		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |

			   SND_SOC_DAIFMT_CBS_CFS,

		.ops = &mt8173_rt5650_ops,

		.ignore_pmdown_time = 1,

		.dpcm_playback = 1,

		.dpcm_capture = 1,

	},

};



static struct snd_soc_card mt8173_rt5650_card = {

	.name = "mtk-rt5650",

	.owner = THIS_MODULE,

	.dai_link = mt8173_rt5650_dais,

	.num_links = ARRAY_SIZE(mt8173_rt5650_dais),

	.controls = mt8173_rt5650_controls,

	.num_controls = ARRAY_SIZE(mt8173_rt5650_controls),

	.dapm_widgets = mt8173_rt5650_widgets,

	.num_dapm_widgets = ARRAY_SIZE(mt8173_rt5650_widgets),

	.dapm_routes = mt8173_rt5650_routes,

	.num_dapm_routes = ARRAY_SIZE(mt8173_rt5650_routes),

};



static int mt8173_rt5650_dev_probe(struct platform_device *pdev)

{

	struct snd_soc_card *card = &mt8173_rt5650_card;

	struct device_node *platform_node;

	int i, ret;



	platform_node = of_parse_phandle(pdev->dev.of_node,

					 "mediatek,platform", 0);

	if (!platform_node) {

		dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");

		return -EINVAL;

	}



	for (i = 0; i < card->num_links; i++) {

		if (mt8173_rt5650_dais[i].platform_name)

			continue;

		mt8173_rt5650_dais[i].platform_of_node = platform_node;

	}



	mt8173_rt5650_codecs[0].of_node =

		of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 0);

	if (!mt8173_rt5650_codecs[0].of_node) {

		dev_err(&pdev->dev,

			"Property 'audio-codec' missing or invalid\n");

		return -EINVAL;

	}

	card->dev = &pdev->dev;

	platform_set_drvdata(pdev, card);



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

	if (ret)

		dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",

			__func__, ret);

	return ret;

}



static const struct of_device_id mt8173_rt5650_dt_match[] = {

	{ .compatible = "mediatek,mt8173-rt5650", },

	{ }

};

MODULE_DEVICE_TABLE(of, mt8173_rt5650_dt_match);



static struct platform_driver mt8173_rt5650_driver = {

	.driver = {

		   .name = "mtk-rt5650",

		   .of_match_table = mt8173_rt5650_dt_match,

#ifdef CONFIG_PM

		   .pm = &snd_soc_pm_ops,

#endif

	},

	.probe = mt8173_rt5650_dev_probe,

};



module_platform_driver(mt8173_rt5650_driver);



/* Module information */

MODULE_DESCRIPTION("MT8173 RT5650 SoC machine driver");

MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");

MODULE_LICENSE("GPL v2");

MODULE_ALIAS("platform:mtk-rt5650");