[mirror_ubuntu-hirsute-kernel.git] / sound / soc / davinci / davinci-evm.c

/*
 * ASoC driver for TI DAVINCI EVM platform
 *
 * Author:      Vladimir Barinov, <vbarinov@embeddedalley.com>
 * Copyright:   (C) 2007 MontaVista Software, Inc., <source@mvista.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 as
 * published by the Free Software Foundation.
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/of_platform.h>
#include <linux/clk.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>

#include <asm/dma.h>
#include <asm/mach-types.h>

struct snd_soc_card_drvdata_davinci {
	struct clk *mclk;
	unsigned sysclk;
};

static int evm_startup(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_card *soc_card = rtd->card;
	struct snd_soc_card_drvdata_davinci *drvdata =
		snd_soc_card_get_drvdata(soc_card);

	if (drvdata->mclk)
		return clk_prepare_enable(drvdata->mclk);

	return 0;
}

static void evm_shutdown(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_card *soc_card = rtd->card;
	struct snd_soc_card_drvdata_davinci *drvdata =
		snd_soc_card_get_drvdata(soc_card);

	if (drvdata->mclk)
		clk_disable_unprepare(drvdata->mclk);
}

static int evm_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;
	struct snd_soc_card *soc_card = rtd->card;
	int ret = 0;
	unsigned sysclk = ((struct snd_soc_card_drvdata_davinci *)
			   snd_soc_card_get_drvdata(soc_card))->sysclk;

	/* set the codec system clock */
	ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
	if (ret < 0)
		return ret;

	/* set the CPU system clock */
	ret = snd_soc_dai_set_sysclk(cpu_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
	if (ret < 0)
		return ret;

	return 0;
}

static struct snd_soc_ops evm_ops = {
	.startup = evm_startup,
	.shutdown = evm_shutdown,
	.hw_params = evm_hw_params,
};

/* davinci-evm machine dapm widgets */
static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_LINE("Line Out", NULL),
	SND_SOC_DAPM_MIC("Mic Jack", NULL),
	SND_SOC_DAPM_LINE("Line In", NULL),
};

/* davinci-evm machine audio_mapnections to the codec pins */
static const struct snd_soc_dapm_route audio_map[] = {
	/* Headphone connected to HPLOUT, HPROUT */
	{"Headphone Jack", NULL, "HPLOUT"},
	{"Headphone Jack", NULL, "HPROUT"},

	/* Line Out connected to LLOUT, RLOUT */
	{"Line Out", NULL, "LLOUT"},
	{"Line Out", NULL, "RLOUT"},

	/* Mic connected to (MIC3L | MIC3R) */
	{"MIC3L", NULL, "Mic Bias"},
	{"MIC3R", NULL, "Mic Bias"},
	{"Mic Bias", NULL, "Mic Jack"},

	/* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */
	{"LINE1L", NULL, "Line In"},
	{"LINE2L", NULL, "Line In"},
	{"LINE1R", NULL, "Line In"},
	{"LINE2R", NULL, "Line In"},
};

/* Logic for a aic3x as connected on a davinci-evm */
static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_card *card = rtd->card;
	struct snd_soc_codec *codec = rtd->codec;
	struct device_node *np = card->dev->of_node;
	int ret;

	/* Add davinci-evm specific widgets */
	snd_soc_dapm_new_controls(&card->dapm, aic3x_dapm_widgets,
				  ARRAY_SIZE(aic3x_dapm_widgets));

	if (np) {
		ret = snd_soc_of_parse_audio_routing(card, "ti,audio-routing");
		if (ret)
			return ret;
	} else {
		/* Set up davinci-evm specific audio path audio_map */
		snd_soc_dapm_add_routes(&card->dapm, audio_map,
					ARRAY_SIZE(audio_map));
	}

	/* not connected */
	snd_soc_dapm_nc_pin(&codec->dapm, "MONO_LOUT");
	snd_soc_dapm_nc_pin(&codec->dapm, "HPLCOM");
	snd_soc_dapm_nc_pin(&codec->dapm, "HPRCOM");

	return 0;
}

/* davinci-evm digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link dm6446_evm_dai = {
	.name = "TLV320AIC3X",
	.stream_name = "AIC3X",
	.cpu_dai_name = "davinci-mcbsp",
	.codec_dai_name = "tlv320aic3x-hifi",
	.codec_name = "tlv320aic3x-codec.1-001b",
	.platform_name = "davinci-mcbsp",
	.init = evm_aic3x_init,
	.ops = &evm_ops,
	.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
		   SND_SOC_DAIFMT_IB_NF,
};

static struct snd_soc_dai_link dm355_evm_dai = {
	.name = "TLV320AIC3X",
	.stream_name = "AIC3X",
	.cpu_dai_name = "davinci-mcbsp.1",
	.codec_dai_name = "tlv320aic3x-hifi",
	.codec_name = "tlv320aic3x-codec.1-001b",
	.platform_name = "davinci-mcbsp.1",
	.init = evm_aic3x_init,
	.ops = &evm_ops,
	.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
		   SND_SOC_DAIFMT_IB_NF,
};

static struct snd_soc_dai_link dm365_evm_dai = {
#ifdef CONFIG_SND_DM365_AIC3X_CODEC
	.name = "TLV320AIC3X",
	.stream_name = "AIC3X",
	.cpu_dai_name = "davinci-mcbsp",
	.codec_dai_name = "tlv320aic3x-hifi",
	.codec_name = "tlv320aic3x-codec.1-0018",
	.platform_name = "davinci-mcbsp",
	.init = evm_aic3x_init,
	.ops = &evm_ops,
	.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
		   SND_SOC_DAIFMT_IB_NF,
#elif defined(CONFIG_SND_DM365_VOICE_CODEC)
	.name = "Voice Codec - CQ93VC",
	.stream_name = "CQ93",
	.cpu_dai_name = "davinci-vcif",
	.codec_dai_name = "cq93vc-hifi",
	.codec_name = "cq93vc-codec",
	.platform_name = "davinci-vcif",
#endif
};

static struct snd_soc_dai_link dm6467_evm_dai[] = {
	{
		.name = "TLV320AIC3X",
		.stream_name = "AIC3X",
		.cpu_dai_name= "davinci-mcasp.0",
		.codec_dai_name = "tlv320aic3x-hifi",
		.platform_name = "davinci-mcasp.0",
		.codec_name = "tlv320aic3x-codec.0-001a",
		.init = evm_aic3x_init,
		.ops = &evm_ops,
		.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
			   SND_SOC_DAIFMT_IB_NF,
	},
	{
		.name = "McASP",
		.stream_name = "spdif",
		.cpu_dai_name= "davinci-mcasp.1",
		.codec_dai_name = "dit-hifi",
		.codec_name = "spdif_dit",
		.platform_name = "davinci-mcasp.1",
		.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
			   SND_SOC_DAIFMT_IB_NF,
	},
};

static struct snd_soc_dai_link da830_evm_dai = {
	.name = "TLV320AIC3X",
	.stream_name = "AIC3X",
	.cpu_dai_name = "davinci-mcasp.1",
	.codec_dai_name = "tlv320aic3x-hifi",
	.codec_name = "tlv320aic3x-codec.1-0018",
	.platform_name = "davinci-mcasp.1",
	.init = evm_aic3x_init,
	.ops = &evm_ops,
	.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
		   SND_SOC_DAIFMT_IB_NF,
};

static struct snd_soc_dai_link da850_evm_dai = {
	.name = "TLV320AIC3X",
	.stream_name = "AIC3X",
	.cpu_dai_name= "davinci-mcasp.0",
	.codec_dai_name = "tlv320aic3x-hifi",
	.codec_name = "tlv320aic3x-codec.1-0018",
	.platform_name = "davinci-mcasp.0",
	.init = evm_aic3x_init,
	.ops = &evm_ops,
	.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
		   SND_SOC_DAIFMT_IB_NF,
};

/* davinci dm6446 evm audio machine driver */
/*
 * ASP0 in DM6446 EVM is clocked by U55, as configured by
 * board-dm644x-evm.c using GPIOs from U18.  There are six
 * options; here we "know" we use a 48 KHz sample rate.
 */
static struct snd_soc_card_drvdata_davinci dm6446_snd_soc_card_drvdata = {
	.sysclk = 12288000,
};

static struct snd_soc_card dm6446_snd_soc_card_evm = {
	.name = "DaVinci DM6446 EVM",
	.owner = THIS_MODULE,
	.dai_link = &dm6446_evm_dai,
	.num_links = 1,
	.drvdata = &dm6446_snd_soc_card_drvdata,
};

/* davinci dm355 evm audio machine driver */
/* ASP1 on DM355 EVM is clocked by an external oscillator */
static struct snd_soc_card_drvdata_davinci dm355_snd_soc_card_drvdata = {
	.sysclk = 27000000,
};

static struct snd_soc_card dm355_snd_soc_card_evm = {
	.name = "DaVinci DM355 EVM",
	.owner = THIS_MODULE,
	.dai_link = &dm355_evm_dai,
	.num_links = 1,
	.drvdata = &dm355_snd_soc_card_drvdata,
};

/* davinci dm365 evm audio machine driver */
static struct snd_soc_card_drvdata_davinci dm365_snd_soc_card_drvdata = {
	.sysclk = 27000000,
};

static struct snd_soc_card dm365_snd_soc_card_evm = {
	.name = "DaVinci DM365 EVM",
	.owner = THIS_MODULE,
	.dai_link = &dm365_evm_dai,
	.num_links = 1,
	.drvdata = &dm365_snd_soc_card_drvdata,
};

/* davinci dm6467 evm audio machine driver */
static struct snd_soc_card_drvdata_davinci dm6467_snd_soc_card_drvdata = {
	.sysclk = 27000000,
};

static struct snd_soc_card dm6467_snd_soc_card_evm = {
	.name = "DaVinci DM6467 EVM",
	.owner = THIS_MODULE,
	.dai_link = dm6467_evm_dai,
	.num_links = ARRAY_SIZE(dm6467_evm_dai),
	.drvdata = &dm6467_snd_soc_card_drvdata,
};

static struct snd_soc_card_drvdata_davinci da830_snd_soc_card_drvdata = {
	.sysclk = 24576000,
};

static struct snd_soc_card da830_snd_soc_card = {
	.name = "DA830/OMAP-L137 EVM",
	.owner = THIS_MODULE,
	.dai_link = &da830_evm_dai,
	.num_links = 1,
	.drvdata = &da830_snd_soc_card_drvdata,
};

static struct snd_soc_card_drvdata_davinci da850_snd_soc_card_drvdata = {
	.sysclk = 24576000,
};

static struct snd_soc_card da850_snd_soc_card = {
	.name = "DA850/OMAP-L138 EVM",
	.owner = THIS_MODULE,
	.dai_link = &da850_evm_dai,
	.num_links = 1,
	.drvdata = &da850_snd_soc_card_drvdata,
};

#if defined(CONFIG_OF)

/*
 * The struct is used as place holder. It will be completely
 * filled with data from dt node.
 */
static struct snd_soc_dai_link evm_dai_tlv320aic3x = {
	.name		= "TLV320AIC3X",
	.stream_name	= "AIC3X",
	.codec_dai_name	= "tlv320aic3x-hifi",
	.ops            = &evm_ops,
	.init           = evm_aic3x_init,
	.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
		   SND_SOC_DAIFMT_IB_NF,
};

static const struct of_device_id davinci_evm_dt_ids[] = {
	{
		.compatible = "ti,da830-evm-audio",
		.data = (void *) &evm_dai_tlv320aic3x,
	},
	{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, davinci_evm_dt_ids);

/* davinci evm audio machine driver */
static struct snd_soc_card evm_soc_card = {
	.owner = THIS_MODULE,
	.num_links = 1,
};

static int davinci_evm_probe(struct platform_device *pdev)
{
	struct device_node *np = pdev->dev.of_node;
	const struct of_device_id *match =
		of_match_device(of_match_ptr(davinci_evm_dt_ids), &pdev->dev);
	struct snd_soc_dai_link *dai = (struct snd_soc_dai_link *) match->data;
	struct snd_soc_card_drvdata_davinci *drvdata = NULL;
	struct clk *mclk;
	int ret = 0;

	evm_soc_card.dai_link = dai;

	dai->codec_of_node = of_parse_phandle(np, "ti,audio-codec", 0);
	if (!dai->codec_of_node)
		return -EINVAL;

	dai->cpu_of_node = of_parse_phandle(np, "ti,mcasp-controller", 0);
	if (!dai->cpu_of_node)
		return -EINVAL;

	dai->platform_of_node = dai->cpu_of_node;

	evm_soc_card.dev = &pdev->dev;
	ret = snd_soc_of_parse_card_name(&evm_soc_card, "ti,model");
	if (ret)
		return ret;

	mclk = devm_clk_get(&pdev->dev, "mclk");
	if (PTR_ERR(mclk) == -EPROBE_DEFER) {
		return -EPROBE_DEFER;
	} else if (IS_ERR(mclk)) {
		dev_dbg(&pdev->dev, "mclk not found.\n");
		mclk = NULL;
	}

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

	drvdata->mclk = mclk;

	ret = of_property_read_u32(np, "ti,codec-clock-rate", &drvdata->sysclk);

	if (ret < 0) {
		if (!drvdata->mclk) {
			dev_err(&pdev->dev,
				"No clock or clock rate defined.\n");
			return -EINVAL;
		}
		drvdata->sysclk = clk_get_rate(drvdata->mclk);
	} else if (drvdata->mclk) {
		unsigned int requestd_rate = drvdata->sysclk;
		clk_set_rate(drvdata->mclk, drvdata->sysclk);
		drvdata->sysclk = clk_get_rate(drvdata->mclk);
		if (drvdata->sysclk != requestd_rate)
			dev_warn(&pdev->dev,
				 "Could not get requested rate %u using %u.\n",
				 requestd_rate, drvdata->sysclk);
	}

	snd_soc_card_set_drvdata(&evm_soc_card, drvdata);
	ret = devm_snd_soc_register_card(&pdev->dev, &evm_soc_card);

	if (ret)
		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);

	return ret;
}

static int davinci_evm_remove(struct platform_device *pdev)
{
	struct snd_soc_card *card = platform_get_drvdata(pdev);

	snd_soc_unregister_card(card);

	return 0;
}

static struct platform_driver davinci_evm_driver = {
	.probe		= davinci_evm_probe,
	.remove		= davinci_evm_remove,
	.driver		= {
		.name	= "davinci_evm",
		.pm	= &snd_soc_pm_ops,
		.of_match_table = of_match_ptr(davinci_evm_dt_ids),
	},
};
#endif

static struct platform_device *evm_snd_device;

static int __init evm_init(void)
{
	struct snd_soc_card *evm_snd_dev_data;
	int index;
	int ret;

	/*
	 * If dtb is there, the devices will be created dynamically.
	 * Only register platfrom driver structure.
	 */
#if defined(CONFIG_OF)
	if (of_have_populated_dt())
		return platform_driver_register(&davinci_evm_driver);
#endif

	if (machine_is_davinci_evm()) {
		evm_snd_dev_data = &dm6446_snd_soc_card_evm;
		index = 0;
	} else if (machine_is_davinci_dm355_evm()) {
		evm_snd_dev_data = &dm355_snd_soc_card_evm;
		index = 1;
	} else if (machine_is_davinci_dm365_evm()) {
		evm_snd_dev_data = &dm365_snd_soc_card_evm;
		index = 0;
	} else if (machine_is_davinci_dm6467_evm()) {
		evm_snd_dev_data = &dm6467_snd_soc_card_evm;
		index = 0;
	} else if (machine_is_davinci_da830_evm()) {
		evm_snd_dev_data = &da830_snd_soc_card;
		index = 1;
	} else if (machine_is_davinci_da850_evm()) {
		evm_snd_dev_data = &da850_snd_soc_card;
		index = 0;
	} else
		return -EINVAL;

	evm_snd_device = platform_device_alloc("soc-audio", index);
	if (!evm_snd_device)
		return -ENOMEM;

	platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
	ret = platform_device_add(evm_snd_device);
	if (ret)
		platform_device_put(evm_snd_device);

	return ret;
}

static void __exit evm_exit(void)
{
#if defined(CONFIG_OF)
	if (of_have_populated_dt()) {
		platform_driver_unregister(&davinci_evm_driver);
		return;
	}
#endif

	platform_device_unregister(evm_snd_device);
}

module_init(evm_init);
module_exit(evm_exit);

MODULE_AUTHOR("Vladimir Barinov");
MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
310355c1 VB	1	/*
	2	* ASoC driver for TI DAVINCI EVM platform
	3	*
d6b52039	4	* Author: Vladimir Barinov, <vbarinov@embeddedalley.com>
310355c1 VB	5	* Copyright: (C) 2007 MontaVista Software, Inc., <source@mvista.com>
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License version 2 as
	9	* published by the Free Software Foundation.
	10	*/
	11
	12	#include <linux/module.h>
	13	#include <linux/moduleparam.h>
	14	#include <linux/timer.h>
	15	#include <linux/interrupt.h>
	16	#include <linux/platform_device.h>
aa6b904e	17	#include <linux/i2c.h>
ee2f615d	18	#include <linux/of_platform.h>
5ad8865b	19	#include <linux/clk.h>
310355c1 VB	20	#include <sound/core.h>
	21	#include <sound/pcm.h>
	22	#include <sound/soc.h>
310355c1	23
310355c1	24	#include <asm/dma.h>
f492ec9f DB	25	#include <asm/mach-types.h>
f492ec9f DB	26
bcf25567	27	struct snd_soc_card_drvdata_davinci {
5ad8865b	28	struct clk *mclk;
bcf25567 JS	29	unsigned sysclk;
	30	};
	31
5ad8865b JS	32	static int evm_startup(struct snd_pcm_substream *substream)
	33	{
	34	struct snd_soc_pcm_runtime *rtd = substream->private_data;
2896b8b4	35	struct snd_soc_card *soc_card = rtd->card;
5ad8865b JS	36	struct snd_soc_card_drvdata_davinci *drvdata =
	37	snd_soc_card_get_drvdata(soc_card);
	38
	39	if (drvdata->mclk)
	40	return clk_prepare_enable(drvdata->mclk);
	41
	42	return 0;
	43	}
	44
	45	static void evm_shutdown(struct snd_pcm_substream *substream)
	46	{
	47	struct snd_soc_pcm_runtime *rtd = substream->private_data;
2896b8b4	48	struct snd_soc_card *soc_card = rtd->card;
5ad8865b JS	49	struct snd_soc_card_drvdata_davinci *drvdata =
	50	snd_soc_card_get_drvdata(soc_card);
	51
	52	if (drvdata->mclk)
	53	clk_disable_unprepare(drvdata->mclk);
	54	}
	55
310355c1 VB	56	static int evm_hw_params(struct snd_pcm_substream *substream,
	57	struct snd_pcm_hw_params *params)
	58	{
	59	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad LG	60	struct snd_soc_dai *codec_dai = rtd->codec_dai;
f0fba2ad LG	61	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
2896b8b4	62	struct snd_soc_card *soc_card = rtd->card;
310355c1	63	int ret = 0;
bcf25567 JS	64	unsigned sysclk = ((struct snd_soc_card_drvdata_davinci *)
bcf25567 JS	65	snd_soc_card_get_drvdata(soc_card))->sysclk;
310355c1	66
310355c1	67	/* set the codec system clock */
05d5e991	68	ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
310355c1 VB	69	if (ret < 0)
	70	return ret;
	71
5b66aa2d DM	72	/* set the CPU system clock */
	73	ret = snd_soc_dai_set_sysclk(cpu_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
	74	if (ret < 0)
	75	return ret;
	76
310355c1 VB	77	return 0;
	78	}
	79
	80	static struct snd_soc_ops evm_ops = {
5ad8865b JS	81	.startup = evm_startup,
5ad8865b JS	82	.shutdown = evm_shutdown,
310355c1 VB	83	.hw_params = evm_hw_params,
	84	};
	85
	86	/* davinci-evm machine dapm widgets */
	87	static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
	88	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	89	SND_SOC_DAPM_LINE("Line Out", NULL),
	90	SND_SOC_DAPM_MIC("Mic Jack", NULL),
	91	SND_SOC_DAPM_LINE("Line In", NULL),
	92	};
	93
	94	/* davinci-evm machine audio_mapnections to the codec pins */
acf497f9	95	static const struct snd_soc_dapm_route audio_map[] = {
310355c1 VB	96	/* Headphone connected to HPLOUT, HPROUT */
	97	{"Headphone Jack", NULL, "HPLOUT"},
	98	{"Headphone Jack", NULL, "HPROUT"},
	99
	100	/* Line Out connected to LLOUT, RLOUT */
	101	{"Line Out", NULL, "LLOUT"},
	102	{"Line Out", NULL, "RLOUT"},
	103
	104	/* Mic connected to (MIC3L \| MIC3R) */
e2e8bfdf HG	105	{"MIC3L", NULL, "Mic Bias"},
	106	{"MIC3R", NULL, "Mic Bias"},
	107	{"Mic Bias", NULL, "Mic Jack"},
310355c1 VB	108
	109	/* Line In connected to (LINE1L \| LINE2L), (LINE1R \| LINE2R) */
	110	{"LINE1L", NULL, "Line In"},
	111	{"LINE2L", NULL, "Line In"},
	112	{"LINE1R", NULL, "Line In"},
	113	{"LINE2R", NULL, "Line In"},
310355c1 VB	114	};
	115
	116	/* Logic for a aic3x as connected on a davinci-evm */
f0fba2ad	117	static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
310355c1	118	{
d343a660	119	struct snd_soc_card *card = rtd->card;
f0fba2ad	120	struct snd_soc_codec *codec = rtd->codec;
2896b8b4	121	struct device_node *np = card->dev->of_node;
ee2f615d	122	int ret;
f0fba2ad	123
310355c1	124	/* Add davinci-evm specific widgets */
d343a660	125	snd_soc_dapm_new_controls(&card->dapm, aic3x_dapm_widgets,
acf497f9	126	ARRAY_SIZE(aic3x_dapm_widgets));
310355c1	127
ee2f615d	128	if (np) {
d343a660	129	ret = snd_soc_of_parse_audio_routing(card, "ti,audio-routing");
ee2f615d HG	130	if (ret)
	131	return ret;
	132	} else {
	133	/* Set up davinci-evm specific audio path audio_map */
d343a660 LPC	134	snd_soc_dapm_add_routes(&card->dapm, audio_map,
d343a660 LPC	135	ARRAY_SIZE(audio_map));
ee2f615d	136	}
310355c1 VB	137
310355c1 VB	138	/* not connected */
d343a660 LPC	139	snd_soc_dapm_nc_pin(&codec->dapm, "MONO_LOUT");
	140	snd_soc_dapm_nc_pin(&codec->dapm, "HPLCOM");
	141	snd_soc_dapm_nc_pin(&codec->dapm, "HPRCOM");
310355c1	142
310355c1 VB	143	return 0;
	144	}
	145
	146	/* davinci-evm digital audio interface glue - connects codec <--> CPU */
bedad0ca	147	static struct snd_soc_dai_link dm6446_evm_dai = {
310355c1 VB	148	.name = "TLV320AIC3X",
310355c1 VB	149	.stream_name = "AIC3X",
bedad0ca	150	.cpu_dai_name = "davinci-mcbsp",
f0fba2ad	151	.codec_dai_name = "tlv320aic3x-hifi",
bedad0ca	152	.codec_name = "tlv320aic3x-codec.1-001b",
f08095a4	153	.platform_name = "davinci-mcbsp",
bedad0ca CPE	154	.init = evm_aic3x_init,
bedad0ca CPE	155	.ops = &evm_ops,
d38970e1 PU	156	.dai_fmt = SND_SOC_DAIFMT_DSP_B \| SND_SOC_DAIFMT_CBM_CFM \|
d38970e1 PU	157	SND_SOC_DAIFMT_IB_NF,
bedad0ca CPE	158	};
	159
	160	static struct snd_soc_dai_link dm355_evm_dai = {
	161	.name = "TLV320AIC3X",
	162	.stream_name = "AIC3X",
	163	.cpu_dai_name = "davinci-mcbsp.1",
	164	.codec_dai_name = "tlv320aic3x-hifi",
	165	.codec_name = "tlv320aic3x-codec.1-001b",
f08095a4	166	.platform_name = "davinci-mcbsp.1",
310355c1 VB	167	.init = evm_aic3x_init,
310355c1 VB	168	.ops = &evm_ops,
d38970e1 PU	169	.dai_fmt = SND_SOC_DAIFMT_DSP_B \| SND_SOC_DAIFMT_CBM_CFM \|
d38970e1 PU	170	SND_SOC_DAIFMT_IB_NF,
310355c1 VB	171	};
310355c1 VB	172
aa9b88ee MA	173	static struct snd_soc_dai_link dm365_evm_dai = {
	174	#ifdef CONFIG_SND_DM365_AIC3X_CODEC
	175	.name = "TLV320AIC3X",
	176	.stream_name = "AIC3X",
bedad0ca	177	.cpu_dai_name = "davinci-mcbsp",
f0fba2ad	178	.codec_dai_name = "tlv320aic3x-hifi",
bedad0ca	179	.codec_name = "tlv320aic3x-codec.1-0018",
f08095a4	180	.platform_name = "davinci-mcbsp",
d38970e1 PU	181	.init = evm_aic3x_init,
	182	.ops = &evm_ops,
	183	.dai_fmt = SND_SOC_DAIFMT_DSP_B \| SND_SOC_DAIFMT_CBM_CFM \|
	184	SND_SOC_DAIFMT_IB_NF,
aa9b88ee MA	185	#elif defined(CONFIG_SND_DM365_VOICE_CODEC)
	186	.name = "Voice Codec - CQ93VC",
	187	.stream_name = "CQ93",
f0fba2ad LG	188	.cpu_dai_name = "davinci-vcif",
	189	.codec_dai_name = "cq93vc-hifi",
	190	.codec_name = "cq93vc-codec",
ffb690d5	191	.platform_name = "davinci-vcif",
aa9b88ee MA	192	#endif
	193	};
	194
04f80f5c C	195	static struct snd_soc_dai_link dm6467_evm_dai[] = {
	196	{
	197	.name = "TLV320AIC3X",
	198	.stream_name = "AIC3X",
f0fba2ad LG	199	.cpu_dai_name= "davinci-mcasp.0",
f0fba2ad LG	200	.codec_dai_name = "tlv320aic3x-hifi",
f08095a4	201	.platform_name = "davinci-mcasp.0",
f0fba2ad	202	.codec_name = "tlv320aic3x-codec.0-001a",
04f80f5c C	203	.init = evm_aic3x_init,
04f80f5c C	204	.ops = &evm_ops,
d38970e1 PU	205	.dai_fmt = SND_SOC_DAIFMT_DSP_B \| SND_SOC_DAIFMT_CBM_CFM \|
d38970e1 PU	206	SND_SOC_DAIFMT_IB_NF,
04f80f5c C	207	},
	208	{
	209	.name = "McASP",
	210	.stream_name = "spdif",
f0fba2ad LG	211	.cpu_dai_name= "davinci-mcasp.1",
	212	.codec_dai_name = "dit-hifi",
	213	.codec_name = "spdif_dit",
f08095a4	214	.platform_name = "davinci-mcasp.1",
d38970e1 PU	215	.dai_fmt = SND_SOC_DAIFMT_DSP_B \| SND_SOC_DAIFMT_CBM_CFM \|
d38970e1 PU	216	SND_SOC_DAIFMT_IB_NF,
04f80f5c C	217	},
04f80f5c C	218	};
f9eb9dd1 VB	219
	220	static struct snd_soc_dai_link da830_evm_dai = {
	221	.name = "TLV320AIC3X",
	222	.stream_name = "AIC3X",
	223	.cpu_dai_name = "davinci-mcasp.1",
	224	.codec_dai_name = "tlv320aic3x-hifi",
	225	.codec_name = "tlv320aic3x-codec.1-0018",
f08095a4	226	.platform_name = "davinci-mcasp.1",
f9eb9dd1 VB	227	.init = evm_aic3x_init,
f9eb9dd1 VB	228	.ops = &evm_ops,
d38970e1 PU	229	.dai_fmt = SND_SOC_DAIFMT_DSP_B \| SND_SOC_DAIFMT_CBM_CFM \|
d38970e1 PU	230	SND_SOC_DAIFMT_IB_NF,
f9eb9dd1 VB	231	};
	232
	233	static struct snd_soc_dai_link da850_evm_dai = {
7ae5945f C	234	.name = "TLV320AIC3X",
7ae5945f C	235	.stream_name = "AIC3X",
f0fba2ad LG	236	.cpu_dai_name= "davinci-mcasp.0",
f0fba2ad LG	237	.codec_dai_name = "tlv320aic3x-hifi",
dc5a460a	238	.codec_name = "tlv320aic3x-codec.1-0018",
f08095a4	239	.platform_name = "davinci-mcasp.0",
7ae5945f C	240	.init = evm_aic3x_init,
7ae5945f C	241	.ops = &evm_ops,
d38970e1 PU	242	.dai_fmt = SND_SOC_DAIFMT_DSP_B \| SND_SOC_DAIFMT_CBM_CFM \|
d38970e1 PU	243	SND_SOC_DAIFMT_IB_NF,
7ae5945f	244	};
04f80f5c	245
bedad0ca	246	/* davinci dm6446 evm audio machine driver */
bcf25567 JS	247	/*
	248	* ASP0 in DM6446 EVM is clocked by U55, as configured by
	249	* board-dm644x-evm.c using GPIOs from U18. There are six
	250	* options; here we "know" we use a 48 KHz sample rate.
	251	*/
	252	static struct snd_soc_card_drvdata_davinci dm6446_snd_soc_card_drvdata = {
	253	.sysclk = 12288000,
	254	};
	255
bedad0ca CPE	256	static struct snd_soc_card dm6446_snd_soc_card_evm = {
bedad0ca CPE	257	.name = "DaVinci DM6446 EVM",
36a16d1a	258	.owner = THIS_MODULE,
bedad0ca CPE	259	.dai_link = &dm6446_evm_dai,
bedad0ca CPE	260	.num_links = 1,
bcf25567	261	.drvdata = &dm6446_snd_soc_card_drvdata,
bedad0ca CPE	262	};
	263
	264	/* davinci dm355 evm audio machine driver */
bcf25567 JS	265	/* ASP1 on DM355 EVM is clocked by an external oscillator */
	266	static struct snd_soc_card_drvdata_davinci dm355_snd_soc_card_drvdata = {
	267	.sysclk = 27000000,
	268	};
	269
bedad0ca CPE	270	static struct snd_soc_card dm355_snd_soc_card_evm = {
bedad0ca CPE	271	.name = "DaVinci DM355 EVM",
36a16d1a	272	.owner = THIS_MODULE,
bedad0ca	273	.dai_link = &dm355_evm_dai,
310355c1	274	.num_links = 1,
bcf25567	275	.drvdata = &dm355_snd_soc_card_drvdata,
310355c1 VB	276	};
310355c1 VB	277
aa9b88ee	278	/* davinci dm365 evm audio machine driver */
bcf25567 JS	279	static struct snd_soc_card_drvdata_davinci dm365_snd_soc_card_drvdata = {
	280	.sysclk = 27000000,
	281	};
	282
aa9b88ee MA	283	static struct snd_soc_card dm365_snd_soc_card_evm = {
aa9b88ee MA	284	.name = "DaVinci DM365 EVM",
36a16d1a	285	.owner = THIS_MODULE,
aa9b88ee MA	286	.dai_link = &dm365_evm_dai,
aa9b88ee MA	287	.num_links = 1,
bcf25567	288	.drvdata = &dm365_snd_soc_card_drvdata,
aa9b88ee MA	289	};
aa9b88ee MA	290
04f80f5c	291	/* davinci dm6467 evm audio machine driver */
bcf25567 JS	292	static struct snd_soc_card_drvdata_davinci dm6467_snd_soc_card_drvdata = {
	293	.sysclk = 27000000,
	294	};
	295
04f80f5c C	296	static struct snd_soc_card dm6467_snd_soc_card_evm = {
04f80f5c C	297	.name = "DaVinci DM6467 EVM",
36a16d1a	298	.owner = THIS_MODULE,
04f80f5c C	299	.dai_link = dm6467_evm_dai,
04f80f5c C	300	.num_links = ARRAY_SIZE(dm6467_evm_dai),
bcf25567 JS	301	.drvdata = &dm6467_snd_soc_card_drvdata,
	302	};
	303
	304	static struct snd_soc_card_drvdata_davinci da830_snd_soc_card_drvdata = {
	305	.sysclk = 24576000,
04f80f5c C	306	};
04f80f5c C	307
7ae5945f	308	static struct snd_soc_card da830_snd_soc_card = {
30230f4c	309	.name = "DA830/OMAP-L137 EVM",
36a16d1a	310	.owner = THIS_MODULE,
f9eb9dd1	311	.dai_link = &da830_evm_dai,
30230f4c	312	.num_links = 1,
bcf25567 JS	313	.drvdata = &da830_snd_soc_card_drvdata,
	314	};
	315
	316	static struct snd_soc_card_drvdata_davinci da850_snd_soc_card_drvdata = {
	317	.sysclk = 24576000,
30230f4c C	318	};
	319
	320	static struct snd_soc_card da850_snd_soc_card = {
	321	.name = "DA850/OMAP-L138 EVM",
36a16d1a	322	.owner = THIS_MODULE,
f9eb9dd1	323	.dai_link = &da850_evm_dai,
7ae5945f	324	.num_links = 1,
bcf25567	325	.drvdata = &da850_snd_soc_card_drvdata,
7ae5945f C	326	};
7ae5945f C	327
ee2f615d HG	328	#if defined(CONFIG_OF)
	329
	330	/*
	331	* The struct is used as place holder. It will be completely
	332	* filled with data from dt node.
	333	*/
	334	static struct snd_soc_dai_link evm_dai_tlv320aic3x = {
	335	.name = "TLV320AIC3X",
	336	.stream_name = "AIC3X",
	337	.codec_dai_name = "tlv320aic3x-hifi",
	338	.ops = &evm_ops,
	339	.init = evm_aic3x_init,
d38970e1 PU	340	.dai_fmt = SND_SOC_DAIFMT_DSP_B \| SND_SOC_DAIFMT_CBM_CFM \|
d38970e1 PU	341	SND_SOC_DAIFMT_IB_NF,
ee2f615d HG	342	};
	343
	344	static const struct of_device_id davinci_evm_dt_ids[] = {
	345	{
	346	.compatible = "ti,da830-evm-audio",
	347	.data = (void *) &evm_dai_tlv320aic3x,
	348	},
	349	{ /* sentinel */ }
	350	};
	351	MODULE_DEVICE_TABLE(of, davinci_evm_dt_ids);
	352
	353	/* davinci evm audio machine driver */
	354	static struct snd_soc_card evm_soc_card = {
	355	.owner = THIS_MODULE,
	356	.num_links = 1,
	357	};
	358
	359	static int davinci_evm_probe(struct platform_device *pdev)
	360	{
	361	struct device_node *np = pdev->dev.of_node;
	362	const struct of_device_id *match =
	363	of_match_device(of_match_ptr(davinci_evm_dt_ids), &pdev->dev);
	364	struct snd_soc_dai_link dai = (struct snd_soc_dai_link ) match->data;
	365	struct snd_soc_card_drvdata_davinci *drvdata = NULL;
5ad8865b	366	struct clk *mclk;
ee2f615d HG	367	int ret = 0;
	368
	369	evm_soc_card.dai_link = dai;
	370
	371	dai->codec_of_node = of_parse_phandle(np, "ti,audio-codec", 0);
	372	if (!dai->codec_of_node)
	373	return -EINVAL;
	374
	375	dai->cpu_of_node = of_parse_phandle(np, "ti,mcasp-controller", 0);
	376	if (!dai->cpu_of_node)
	377	return -EINVAL;
	378
	379	dai->platform_of_node = dai->cpu_of_node;
	380
	381	evm_soc_card.dev = &pdev->dev;
	382	ret = snd_soc_of_parse_card_name(&evm_soc_card, "ti,model");
	383	if (ret)
	384	return ret;
	385
5ad8865b JS	386	mclk = devm_clk_get(&pdev->dev, "mclk");
	387	if (PTR_ERR(mclk) == -EPROBE_DEFER) {
	388	return -EPROBE_DEFER;
	389	} else if (IS_ERR(mclk)) {
	390	dev_dbg(&pdev->dev, "mclk not found.\n");
	391	mclk = NULL;
	392	}
	393
ee2f615d HG	394	drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL);
	395	if (!drvdata)
	396	return -ENOMEM;
	397
5ad8865b JS	398	drvdata->mclk = mclk;
5ad8865b JS	399
ee2f615d	400	ret = of_property_read_u32(np, "ti,codec-clock-rate", &drvdata->sysclk);
5ad8865b JS	401
	402	if (ret < 0) {
	403	if (!drvdata->mclk) {
	404	dev_err(&pdev->dev,
	405	"No clock or clock rate defined.\n");
	406	return -EINVAL;
	407	}
	408	drvdata->sysclk = clk_get_rate(drvdata->mclk);
	409	} else if (drvdata->mclk) {
	410	unsigned int requestd_rate = drvdata->sysclk;
	411	clk_set_rate(drvdata->mclk, drvdata->sysclk);
	412	drvdata->sysclk = clk_get_rate(drvdata->mclk);
	413	if (drvdata->sysclk != requestd_rate)
	414	dev_warn(&pdev->dev,
	415	"Could not get requested rate %u using %u.\n",
	416	requestd_rate, drvdata->sysclk);
	417	}
ee2f615d HG	418
	419	snd_soc_card_set_drvdata(&evm_soc_card, drvdata);
	420	ret = devm_snd_soc_register_card(&pdev->dev, &evm_soc_card);
	421
	422	if (ret)
	423	dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
	424
	425	return ret;
	426	}
	427
	428	static int davinci_evm_remove(struct platform_device *pdev)
	429	{
	430	struct snd_soc_card *card = platform_get_drvdata(pdev);
	431
	432	snd_soc_unregister_card(card);
	433
	434	return 0;
	435	}
	436
	437	static struct platform_driver davinci_evm_driver = {
	438	.probe = davinci_evm_probe,
	439	.remove = davinci_evm_remove,
	440	.driver = {
	441	.name = "davinci_evm",
fb6d208d	442	.pm = &snd_soc_pm_ops,
ee2f615d HG	443	.of_match_table = of_match_ptr(davinci_evm_dt_ids),
	444	},
	445	};
	446	#endif
	447
310355c1 VB	448	static struct platform_device *evm_snd_device;
	449
	450	static int __init evm_init(void)
	451	{
f0fba2ad	452	struct snd_soc_card *evm_snd_dev_data;
f492ec9f	453	int index;
310355c1 VB	454	int ret;
310355c1 VB	455
ee2f615d HG	456	/*
	457	* If dtb is there, the devices will be created dynamically.
	458	* Only register platfrom driver structure.
	459	*/
	460	#if defined(CONFIG_OF)
	461	if (of_have_populated_dt())
	462	return platform_driver_register(&davinci_evm_driver);
	463	#endif
	464
aa9b88ee	465	if (machine_is_davinci_evm()) {
bedad0ca	466	evm_snd_dev_data = &dm6446_snd_soc_card_evm;
f492ec9f DB	467	index = 0;
f492ec9f DB	468	} else if (machine_is_davinci_dm355_evm()) {
bedad0ca	469	evm_snd_dev_data = &dm355_snd_soc_card_evm;
f492ec9f	470	index = 1;
aa9b88ee	471	} else if (machine_is_davinci_dm365_evm()) {
f0fba2ad	472	evm_snd_dev_data = &dm365_snd_soc_card_evm;
aa9b88ee	473	index = 0;
04f80f5c	474	} else if (machine_is_davinci_dm6467_evm()) {
f0fba2ad	475	evm_snd_dev_data = &dm6467_snd_soc_card_evm;
04f80f5c	476	index = 0;
7ae5945f	477	} else if (machine_is_davinci_da830_evm()) {
f0fba2ad	478	evm_snd_dev_data = &da830_snd_soc_card;
7ae5945f	479	index = 1;
30230f4c	480	} else if (machine_is_davinci_da850_evm()) {
f0fba2ad	481	evm_snd_dev_data = &da850_snd_soc_card;
30230f4c	482	index = 0;
f492ec9f DB	483	} else
	484	return -EINVAL;
	485
	486	evm_snd_device = platform_device_alloc("soc-audio", index);
310355c1 VB	487	if (!evm_snd_device)
	488	return -ENOMEM;
	489
04f80f5c	490	platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
310355c1 VB	491	ret = platform_device_add(evm_snd_device);
	492	if (ret)
	493	platform_device_put(evm_snd_device);
	494
	495	return ret;
	496	}
	497
	498	static void __exit evm_exit(void)
	499	{
ee2f615d HG	500	#if defined(CONFIG_OF)
	501	if (of_have_populated_dt()) {
	502	platform_driver_unregister(&davinci_evm_driver);
	503	return;
	504	}
	505	#endif
	506
310355c1 VB	507	platform_device_unregister(evm_snd_device);
	508	}
	509
	510	module_init(evm_init);
	511	module_exit(evm_exit);
	512
	513	MODULE_AUTHOR("Vladimir Barinov");
	514	MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
	515	MODULE_LICENSE("GPL");