[deliverable/linux.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 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(&card->dapm, "MONO_LOUT");
	snd_soc_dapm_nc_pin(&card->dapm, "HPLCOM");
	snd_soc_dapm_nc_pin(&card->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 struct platform_driver davinci_evm_driver = {
	.probe		= davinci_evm_probe,
	.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;
2896b8b4	120	struct device_node *np = card->dev->of_node;
ee2f615d	121	int ret;
f0fba2ad	122
310355c1	123	/* Add davinci-evm specific widgets */
d343a660	124	snd_soc_dapm_new_controls(&card->dapm, aic3x_dapm_widgets,
acf497f9	125	ARRAY_SIZE(aic3x_dapm_widgets));
310355c1	126
ee2f615d	127	if (np) {
d343a660	128	ret = snd_soc_of_parse_audio_routing(card, "ti,audio-routing");
ee2f615d HG	129	if (ret)
	130	return ret;
	131	} else {
	132	/* Set up davinci-evm specific audio path audio_map */
d343a660 LPC	133	snd_soc_dapm_add_routes(&card->dapm, audio_map,
d343a660 LPC	134	ARRAY_SIZE(audio_map));
ee2f615d	135	}
310355c1 VB	136
310355c1 VB	137	/* not connected */
b213b44a LPC	138	snd_soc_dapm_nc_pin(&card->dapm, "MONO_LOUT");
	139	snd_soc_dapm_nc_pin(&card->dapm, "HPLCOM");
	140	snd_soc_dapm_nc_pin(&card->dapm, "HPRCOM");
310355c1	141
310355c1 VB	142	return 0;
	143	}
	144
	145	/* davinci-evm digital audio interface glue - connects codec <--> CPU */
bedad0ca	146	static struct snd_soc_dai_link dm6446_evm_dai = {
310355c1 VB	147	.name = "TLV320AIC3X",
310355c1 VB	148	.stream_name = "AIC3X",
bedad0ca	149	.cpu_dai_name = "davinci-mcbsp",
f0fba2ad	150	.codec_dai_name = "tlv320aic3x-hifi",
bedad0ca	151	.codec_name = "tlv320aic3x-codec.1-001b",
f08095a4	152	.platform_name = "davinci-mcbsp",
bedad0ca CPE	153	.init = evm_aic3x_init,
bedad0ca CPE	154	.ops = &evm_ops,
d38970e1 PU	155	.dai_fmt = SND_SOC_DAIFMT_DSP_B \| SND_SOC_DAIFMT_CBM_CFM \|
d38970e1 PU	156	SND_SOC_DAIFMT_IB_NF,
bedad0ca CPE	157	};
	158
	159	static struct snd_soc_dai_link dm355_evm_dai = {
	160	.name = "TLV320AIC3X",
	161	.stream_name = "AIC3X",
	162	.cpu_dai_name = "davinci-mcbsp.1",
	163	.codec_dai_name = "tlv320aic3x-hifi",
	164	.codec_name = "tlv320aic3x-codec.1-001b",
f08095a4	165	.platform_name = "davinci-mcbsp.1",
310355c1 VB	166	.init = evm_aic3x_init,
310355c1 VB	167	.ops = &evm_ops,
d38970e1 PU	168	.dai_fmt = SND_SOC_DAIFMT_DSP_B \| SND_SOC_DAIFMT_CBM_CFM \|
d38970e1 PU	169	SND_SOC_DAIFMT_IB_NF,
310355c1 VB	170	};
310355c1 VB	171
aa9b88ee MA	172	static struct snd_soc_dai_link dm365_evm_dai = {
	173	#ifdef CONFIG_SND_DM365_AIC3X_CODEC
	174	.name = "TLV320AIC3X",
	175	.stream_name = "AIC3X",
bedad0ca	176	.cpu_dai_name = "davinci-mcbsp",
f0fba2ad	177	.codec_dai_name = "tlv320aic3x-hifi",
bedad0ca	178	.codec_name = "tlv320aic3x-codec.1-0018",
f08095a4	179	.platform_name = "davinci-mcbsp",
d38970e1 PU	180	.init = evm_aic3x_init,
	181	.ops = &evm_ops,
	182	.dai_fmt = SND_SOC_DAIFMT_DSP_B \| SND_SOC_DAIFMT_CBM_CFM \|
	183	SND_SOC_DAIFMT_IB_NF,
aa9b88ee MA	184	#elif defined(CONFIG_SND_DM365_VOICE_CODEC)
	185	.name = "Voice Codec - CQ93VC",
	186	.stream_name = "CQ93",
f0fba2ad LG	187	.cpu_dai_name = "davinci-vcif",
	188	.codec_dai_name = "cq93vc-hifi",
	189	.codec_name = "cq93vc-codec",
ffb690d5	190	.platform_name = "davinci-vcif",
aa9b88ee MA	191	#endif
	192	};
	193
04f80f5c C	194	static struct snd_soc_dai_link dm6467_evm_dai[] = {
	195	{
	196	.name = "TLV320AIC3X",
	197	.stream_name = "AIC3X",
f0fba2ad LG	198	.cpu_dai_name= "davinci-mcasp.0",
f0fba2ad LG	199	.codec_dai_name = "tlv320aic3x-hifi",
f08095a4	200	.platform_name = "davinci-mcasp.0",
f0fba2ad	201	.codec_name = "tlv320aic3x-codec.0-001a",
04f80f5c C	202	.init = evm_aic3x_init,
04f80f5c C	203	.ops = &evm_ops,
d38970e1 PU	204	.dai_fmt = SND_SOC_DAIFMT_DSP_B \| SND_SOC_DAIFMT_CBM_CFM \|
d38970e1 PU	205	SND_SOC_DAIFMT_IB_NF,
04f80f5c C	206	},
	207	{
	208	.name = "McASP",
	209	.stream_name = "spdif",
f0fba2ad LG	210	.cpu_dai_name= "davinci-mcasp.1",
	211	.codec_dai_name = "dit-hifi",
	212	.codec_name = "spdif_dit",
f08095a4	213	.platform_name = "davinci-mcasp.1",
d38970e1 PU	214	.dai_fmt = SND_SOC_DAIFMT_DSP_B \| SND_SOC_DAIFMT_CBM_CFM \|
d38970e1 PU	215	SND_SOC_DAIFMT_IB_NF,
04f80f5c C	216	},
04f80f5c C	217	};
f9eb9dd1 VB	218
	219	static struct snd_soc_dai_link da830_evm_dai = {
	220	.name = "TLV320AIC3X",
	221	.stream_name = "AIC3X",
	222	.cpu_dai_name = "davinci-mcasp.1",
	223	.codec_dai_name = "tlv320aic3x-hifi",
	224	.codec_name = "tlv320aic3x-codec.1-0018",
f08095a4	225	.platform_name = "davinci-mcasp.1",
f9eb9dd1 VB	226	.init = evm_aic3x_init,
f9eb9dd1 VB	227	.ops = &evm_ops,
d38970e1 PU	228	.dai_fmt = SND_SOC_DAIFMT_DSP_B \| SND_SOC_DAIFMT_CBM_CFM \|
d38970e1 PU	229	SND_SOC_DAIFMT_IB_NF,
f9eb9dd1 VB	230	};
	231
	232	static struct snd_soc_dai_link da850_evm_dai = {
7ae5945f C	233	.name = "TLV320AIC3X",
7ae5945f C	234	.stream_name = "AIC3X",
f0fba2ad LG	235	.cpu_dai_name= "davinci-mcasp.0",
f0fba2ad LG	236	.codec_dai_name = "tlv320aic3x-hifi",
dc5a460a	237	.codec_name = "tlv320aic3x-codec.1-0018",
f08095a4	238	.platform_name = "davinci-mcasp.0",
7ae5945f C	239	.init = evm_aic3x_init,
7ae5945f C	240	.ops = &evm_ops,
d38970e1 PU	241	.dai_fmt = SND_SOC_DAIFMT_DSP_B \| SND_SOC_DAIFMT_CBM_CFM \|
d38970e1 PU	242	SND_SOC_DAIFMT_IB_NF,
7ae5945f	243	};
04f80f5c	244
bedad0ca	245	/* davinci dm6446 evm audio machine driver */
bcf25567 JS	246	/*
	247	* ASP0 in DM6446 EVM is clocked by U55, as configured by
	248	* board-dm644x-evm.c using GPIOs from U18. There are six
	249	* options; here we "know" we use a 48 KHz sample rate.
	250	*/
	251	static struct snd_soc_card_drvdata_davinci dm6446_snd_soc_card_drvdata = {
	252	.sysclk = 12288000,
	253	};
	254
bedad0ca CPE	255	static struct snd_soc_card dm6446_snd_soc_card_evm = {
bedad0ca CPE	256	.name = "DaVinci DM6446 EVM",
36a16d1a	257	.owner = THIS_MODULE,
bedad0ca CPE	258	.dai_link = &dm6446_evm_dai,
bedad0ca CPE	259	.num_links = 1,
bcf25567	260	.drvdata = &dm6446_snd_soc_card_drvdata,
bedad0ca CPE	261	};
	262
	263	/* davinci dm355 evm audio machine driver */
bcf25567 JS	264	/* ASP1 on DM355 EVM is clocked by an external oscillator */
	265	static struct snd_soc_card_drvdata_davinci dm355_snd_soc_card_drvdata = {
	266	.sysclk = 27000000,
	267	};
	268
bedad0ca CPE	269	static struct snd_soc_card dm355_snd_soc_card_evm = {
bedad0ca CPE	270	.name = "DaVinci DM355 EVM",
36a16d1a	271	.owner = THIS_MODULE,
bedad0ca	272	.dai_link = &dm355_evm_dai,
310355c1	273	.num_links = 1,
bcf25567	274	.drvdata = &dm355_snd_soc_card_drvdata,
310355c1 VB	275	};
310355c1 VB	276
aa9b88ee	277	/* davinci dm365 evm audio machine driver */
bcf25567 JS	278	static struct snd_soc_card_drvdata_davinci dm365_snd_soc_card_drvdata = {
	279	.sysclk = 27000000,
	280	};
	281
aa9b88ee MA	282	static struct snd_soc_card dm365_snd_soc_card_evm = {
aa9b88ee MA	283	.name = "DaVinci DM365 EVM",
36a16d1a	284	.owner = THIS_MODULE,
aa9b88ee MA	285	.dai_link = &dm365_evm_dai,
aa9b88ee MA	286	.num_links = 1,
bcf25567	287	.drvdata = &dm365_snd_soc_card_drvdata,
aa9b88ee MA	288	};
aa9b88ee MA	289
04f80f5c	290	/* davinci dm6467 evm audio machine driver */
bcf25567 JS	291	static struct snd_soc_card_drvdata_davinci dm6467_snd_soc_card_drvdata = {
	292	.sysclk = 27000000,
	293	};
	294
04f80f5c C	295	static struct snd_soc_card dm6467_snd_soc_card_evm = {
04f80f5c C	296	.name = "DaVinci DM6467 EVM",
36a16d1a	297	.owner = THIS_MODULE,
04f80f5c C	298	.dai_link = dm6467_evm_dai,
04f80f5c C	299	.num_links = ARRAY_SIZE(dm6467_evm_dai),
bcf25567 JS	300	.drvdata = &dm6467_snd_soc_card_drvdata,
	301	};
	302
	303	static struct snd_soc_card_drvdata_davinci da830_snd_soc_card_drvdata = {
	304	.sysclk = 24576000,
04f80f5c C	305	};
04f80f5c C	306
7ae5945f	307	static struct snd_soc_card da830_snd_soc_card = {
30230f4c	308	.name = "DA830/OMAP-L137 EVM",
36a16d1a	309	.owner = THIS_MODULE,
f9eb9dd1	310	.dai_link = &da830_evm_dai,
30230f4c	311	.num_links = 1,
bcf25567 JS	312	.drvdata = &da830_snd_soc_card_drvdata,
	313	};
	314
	315	static struct snd_soc_card_drvdata_davinci da850_snd_soc_card_drvdata = {
	316	.sysclk = 24576000,
30230f4c C	317	};
	318
	319	static struct snd_soc_card da850_snd_soc_card = {
	320	.name = "DA850/OMAP-L138 EVM",
36a16d1a	321	.owner = THIS_MODULE,
f9eb9dd1	322	.dai_link = &da850_evm_dai,
7ae5945f	323	.num_links = 1,
bcf25567	324	.drvdata = &da850_snd_soc_card_drvdata,
7ae5945f C	325	};
7ae5945f C	326
ee2f615d HG	327	#if defined(CONFIG_OF)
	328
	329	/*
	330	* The struct is used as place holder. It will be completely
	331	* filled with data from dt node.
	332	*/
	333	static struct snd_soc_dai_link evm_dai_tlv320aic3x = {
	334	.name = "TLV320AIC3X",
	335	.stream_name = "AIC3X",
	336	.codec_dai_name = "tlv320aic3x-hifi",
	337	.ops = &evm_ops,
	338	.init = evm_aic3x_init,
d38970e1 PU	339	.dai_fmt = SND_SOC_DAIFMT_DSP_B \| SND_SOC_DAIFMT_CBM_CFM \|
d38970e1 PU	340	SND_SOC_DAIFMT_IB_NF,
ee2f615d HG	341	};
	342
	343	static const struct of_device_id davinci_evm_dt_ids[] = {
	344	{
	345	.compatible = "ti,da830-evm-audio",
	346	.data = (void *) &evm_dai_tlv320aic3x,
	347	},
	348	{ /* sentinel */ }
	349	};
	350	MODULE_DEVICE_TABLE(of, davinci_evm_dt_ids);
	351
	352	/* davinci evm audio machine driver */
	353	static struct snd_soc_card evm_soc_card = {
	354	.owner = THIS_MODULE,
	355	.num_links = 1,
	356	};
	357
	358	static int davinci_evm_probe(struct platform_device *pdev)
	359	{
	360	struct device_node *np = pdev->dev.of_node;
	361	const struct of_device_id *match =
	362	of_match_device(of_match_ptr(davinci_evm_dt_ids), &pdev->dev);
	363	struct snd_soc_dai_link dai = (struct snd_soc_dai_link ) match->data;
	364	struct snd_soc_card_drvdata_davinci *drvdata = NULL;
5ad8865b	365	struct clk *mclk;
ee2f615d HG	366	int ret = 0;
	367
	368	evm_soc_card.dai_link = dai;
	369
	370	dai->codec_of_node = of_parse_phandle(np, "ti,audio-codec", 0);
	371	if (!dai->codec_of_node)
	372	return -EINVAL;
	373
	374	dai->cpu_of_node = of_parse_phandle(np, "ti,mcasp-controller", 0);
	375	if (!dai->cpu_of_node)
	376	return -EINVAL;
	377
	378	dai->platform_of_node = dai->cpu_of_node;
	379
	380	evm_soc_card.dev = &pdev->dev;
	381	ret = snd_soc_of_parse_card_name(&evm_soc_card, "ti,model");
	382	if (ret)
	383	return ret;
	384
5ad8865b JS	385	mclk = devm_clk_get(&pdev->dev, "mclk");
	386	if (PTR_ERR(mclk) == -EPROBE_DEFER) {
	387	return -EPROBE_DEFER;
	388	} else if (IS_ERR(mclk)) {
	389	dev_dbg(&pdev->dev, "mclk not found.\n");
	390	mclk = NULL;
	391	}
	392
ee2f615d HG	393	drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL);
	394	if (!drvdata)
	395	return -ENOMEM;
	396
5ad8865b JS	397	drvdata->mclk = mclk;
5ad8865b JS	398
ee2f615d	399	ret = of_property_read_u32(np, "ti,codec-clock-rate", &drvdata->sysclk);
5ad8865b JS	400
	401	if (ret < 0) {
	402	if (!drvdata->mclk) {
	403	dev_err(&pdev->dev,
	404	"No clock or clock rate defined.\n");
	405	return -EINVAL;
	406	}
	407	drvdata->sysclk = clk_get_rate(drvdata->mclk);
	408	} else if (drvdata->mclk) {
	409	unsigned int requestd_rate = drvdata->sysclk;
	410	clk_set_rate(drvdata->mclk, drvdata->sysclk);
	411	drvdata->sysclk = clk_get_rate(drvdata->mclk);
	412	if (drvdata->sysclk != requestd_rate)
	413	dev_warn(&pdev->dev,
	414	"Could not get requested rate %u using %u.\n",
	415	requestd_rate, drvdata->sysclk);
	416	}
ee2f615d HG	417
	418	snd_soc_card_set_drvdata(&evm_soc_card, drvdata);
	419	ret = devm_snd_soc_register_card(&pdev->dev, &evm_soc_card);
	420
	421	if (ret)
	422	dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
	423
	424	return ret;
	425	}
	426
ee2f615d HG	427	static struct platform_driver davinci_evm_driver = {
ee2f615d HG	428	.probe = davinci_evm_probe,
ee2f615d HG	429	.driver = {
ee2f615d HG	430	.name = "davinci_evm",
fb6d208d	431	.pm = &snd_soc_pm_ops,
ee2f615d HG	432	.of_match_table = of_match_ptr(davinci_evm_dt_ids),
	433	},
	434	};
	435	#endif
	436
310355c1 VB	437	static struct platform_device *evm_snd_device;
	438
	439	static int __init evm_init(void)
	440	{
f0fba2ad	441	struct snd_soc_card *evm_snd_dev_data;
f492ec9f	442	int index;
310355c1 VB	443	int ret;
310355c1 VB	444
ee2f615d HG	445	/*
	446	* If dtb is there, the devices will be created dynamically.
	447	* Only register platfrom driver structure.
	448	*/
	449	#if defined(CONFIG_OF)
	450	if (of_have_populated_dt())
	451	return platform_driver_register(&davinci_evm_driver);
	452	#endif
	453
aa9b88ee	454	if (machine_is_davinci_evm()) {
bedad0ca	455	evm_snd_dev_data = &dm6446_snd_soc_card_evm;
f492ec9f DB	456	index = 0;
f492ec9f DB	457	} else if (machine_is_davinci_dm355_evm()) {
bedad0ca	458	evm_snd_dev_data = &dm355_snd_soc_card_evm;
f492ec9f	459	index = 1;
aa9b88ee	460	} else if (machine_is_davinci_dm365_evm()) {
f0fba2ad	461	evm_snd_dev_data = &dm365_snd_soc_card_evm;
aa9b88ee	462	index = 0;
04f80f5c	463	} else if (machine_is_davinci_dm6467_evm()) {
f0fba2ad	464	evm_snd_dev_data = &dm6467_snd_soc_card_evm;
04f80f5c	465	index = 0;
7ae5945f	466	} else if (machine_is_davinci_da830_evm()) {
f0fba2ad	467	evm_snd_dev_data = &da830_snd_soc_card;
7ae5945f	468	index = 1;
30230f4c	469	} else if (machine_is_davinci_da850_evm()) {
f0fba2ad	470	evm_snd_dev_data = &da850_snd_soc_card;
30230f4c	471	index = 0;
f492ec9f DB	472	} else
	473	return -EINVAL;
	474
	475	evm_snd_device = platform_device_alloc("soc-audio", index);
310355c1 VB	476	if (!evm_snd_device)
	477	return -ENOMEM;
	478
04f80f5c	479	platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
310355c1 VB	480	ret = platform_device_add(evm_snd_device);
	481	if (ret)
	482	platform_device_put(evm_snd_device);
	483
	484	return ret;
	485	}
	486
	487	static void __exit evm_exit(void)
	488	{
ee2f615d HG	489	#if defined(CONFIG_OF)
	490	if (of_have_populated_dt()) {
	491	platform_driver_unregister(&davinci_evm_driver);
	492	return;
	493	}
	494	#endif
	495
310355c1 VB	496	platform_device_unregister(evm_snd_device);
	497	}
	498
	499	module_init(evm_init);
	500	module_exit(evm_exit);
	501
	502	MODULE_AUTHOR("Vladimir Barinov");
	503	MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
	504	MODULE_LICENSE("GPL");