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Commit 8625c1db authored by Ryder Lee's avatar Ryder Lee Committed by Mark Brown
Browse files

ASoC: mediatek: Add mt2701-wm8960 machine driver 



Add wm8960 machine driver and config option for MT2701.

Signed-off-by: default avatarRyder Lee <ryder.lee@mediatek.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 424dfbf2

sound/soc/mediatek/Kconfig

+10 −0
Original line number Diff line number Diff line
@@ -22,6 +22,16 @@ config SND_SOC_MT2701_CS42448 
	  Select Y if you have such device.

	  If unsure select "N".



config SND_SOC_MT2701_WM8960

	tristate "ASoc Audio driver for MT2701 with WM8960 codec"

	depends on SND_SOC_MT2701

	select SND_SOC_WM8960

	help

	  This adds ASoC driver for Mediatek MT2701 boards

	  with the WM8960 codecs.

	  Select Y if you have such device.

	  If unsure select "N".



config SND_SOC_MT8173

	tristate "ASoC support for Mediatek MT8173 chip"

	depends on ARCH_MEDIATEK

sound/soc/mediatek/mt2701/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -17,3 +17,4 @@ obj-$(CONFIG_SND_SOC_MT2701) += snd-soc-mt2701-afe.o 


# machine driver

obj-$(CONFIG_SND_SOC_MT2701_CS42448) += mt2701-cs42448.o

obj-$(CONFIG_SND_SOC_MT2701_WM8960) += mt2701-wm8960.o

sound/soc/mediatek/mt2701/mt2701-afe-pcm.c

+16 −0
Original line number Diff line number Diff line
@@ -603,6 +603,22 @@ static struct snd_soc_dai_ops mt2701_btmrg_ops = { 


static struct snd_soc_dai_driver mt2701_afe_pcm_dais[] = {

	/* FE DAIs: memory intefaces to CPU */

	{

		.name = "PCMO0",

		.id = MT2701_MEMIF_DL1,

		.suspend = mtk_afe_dai_suspend,

		.resume = mtk_afe_dai_resume,

		.playback = {

			.stream_name = "DL1",

			.channels_min = 1,

			.channels_max = 2,

			.rates = SNDRV_PCM_RATE_8000_192000,

			.formats = (SNDRV_PCM_FMTBIT_S16_LE

				| SNDRV_PCM_FMTBIT_S24_LE

				| SNDRV_PCM_FMTBIT_S32_LE)

		},

		.ops = &mt2701_single_memif_dai_ops,

	},

	{

		.name = "PCM_multi",

		.id = MT2701_MEMIF_DLM,

sound/soc/mediatek/mt2701/mt2701-wm8960.c

0 → 100644
+176 −0
Original line number Diff line number Diff line 
/*

 * mt2701-wm8960.c  --  MT2701 WM8960 ALSA SoC machine driver

 *

 * Copyright (c) 2017 MediaTek Inc.

 * Author: Ryder Lee <ryder.lee@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 <sound/soc.h>



#include "mt2701-afe-common.h"



static const struct snd_soc_dapm_widget mt2701_wm8960_widgets[] = {

	SND_SOC_DAPM_HP("Headphone", NULL),

	SND_SOC_DAPM_MIC("AMIC", NULL),

};



static const struct snd_kcontrol_new mt2701_wm8960_controls[] = {

	SOC_DAPM_PIN_SWITCH("Headphone"),

	SOC_DAPM_PIN_SWITCH("AMIC"),

};



static int mt2701_wm8960_be_ops_hw_params(struct snd_pcm_substream *substream,

					  struct snd_pcm_hw_params *params)

{

	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	struct snd_soc_dai *codec_dai = rtd->codec_dai;

	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;

	unsigned int mclk_rate;

	unsigned int rate = params_rate(params);

	unsigned int div_mclk_over_bck = rate > 192000 ? 2 : 4;

	unsigned int div_bck_over_lrck = 64;



	mclk_rate = rate * div_bck_over_lrck * div_mclk_over_bck;



	snd_soc_dai_set_sysclk(cpu_dai, 0, mclk_rate, SND_SOC_CLOCK_OUT);

	snd_soc_dai_set_sysclk(codec_dai, 0, mclk_rate, SND_SOC_CLOCK_IN);



	return 0;

}



static struct snd_soc_ops mt2701_wm8960_be_ops = {

	.hw_params = mt2701_wm8960_be_ops_hw_params

};



static struct snd_soc_dai_link mt2701_wm8960_dai_links[] = {

	/* FE */

	{

		.name = "wm8960-playback",

		.stream_name = "wm8960-playback",

		.cpu_dai_name = "PCMO0",

		.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,

	},

	{

		.name = "wm8960-capture",

		.stream_name = "wm8960-capture",

		.cpu_dai_name = "PCM0",

		.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,

	},

	/* BE */

	{

		.name = "wm8960-codec",

		.cpu_dai_name = "I2S0",

		.no_pcm = 1,

		.codec_dai_name = "wm8960-hifi",

		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS

			| SND_SOC_DAIFMT_GATED,

		.ops = &mt2701_wm8960_be_ops,

		.dpcm_playback = 1,

		.dpcm_capture = 1,

	},

};



static struct snd_soc_card mt2701_wm8960_card = {

	.name = "mt2701-wm8960",

	.owner = THIS_MODULE,

	.dai_link = mt2701_wm8960_dai_links,

	.num_links = ARRAY_SIZE(mt2701_wm8960_dai_links),

	.controls = mt2701_wm8960_controls,

	.num_controls = ARRAY_SIZE(mt2701_wm8960_controls),

	.dapm_widgets = mt2701_wm8960_widgets,

	.num_dapm_widgets = ARRAY_SIZE(mt2701_wm8960_widgets),

};



static int mt2701_wm8960_machine_probe(struct platform_device *pdev)

{

	struct snd_soc_card *card = &mt2701_wm8960_card;

	struct device_node *platform_node, *codec_node;

	int ret, i;



	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 (mt2701_wm8960_dai_links[i].platform_name)

			continue;

		mt2701_wm8960_dai_links[i].platform_of_node = platform_node;

	}



	card->dev = &pdev->dev;



	codec_node = of_parse_phandle(pdev->dev.of_node,

				      "mediatek,audio-codec", 0);

	if (!codec_node) {

		dev_err(&pdev->dev,

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

		return -EINVAL;

	}

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

		if (mt2701_wm8960_dai_links[i].codec_name)

			continue;

		mt2701_wm8960_dai_links[i].codec_of_node = codec_node;

	}



	ret = snd_soc_of_parse_audio_routing(card, "audio-routing");

	if (ret) {

		dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret);

		return ret;

	}



	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;

}



#ifdef CONFIG_OF

static const struct of_device_id mt2701_wm8960_machine_dt_match[] = {

	{.compatible = "mediatek,mt2701-wm8960-machine",},

	{}

};

#endif



static struct platform_driver mt2701_wm8960_machine = {

	.driver = {

		.name = "mt2701-wm8960",

		.owner = THIS_MODULE,

#ifdef CONFIG_OF

		.of_match_table = mt2701_wm8960_machine_dt_match,

#endif

	},

	.probe = mt2701_wm8960_machine_probe,

};



module_platform_driver(mt2701_wm8960_machine);



/* Module information */

MODULE_DESCRIPTION("MT2701 WM8960 ALSA SoC machine driver");

MODULE_AUTHOR("Ryder Lee <ryder.lee@mediatek.com>");

MODULE_LICENSE("GPL v2");

MODULE_ALIAS("mt2701 wm8960 soc card");