[linux-block.git] / sound / soc / tegra / tegra_rt5640.c

// SPDX-License-Identifier: GPL-2.0-only
/*
* tegra_rt5640.c - Tegra machine ASoC driver for boards using RT5640 codec.
 *
 * Copyright (c) 2013, NVIDIA CORPORATION.  All rights reserved.
 *
 * Based on code copyright/by:
 *
 * Copyright (C) 2010-2012 - NVIDIA, Inc.
 * Copyright (C) 2011 The AC100 Kernel Team <ac100@lists.lauchpad.net>
 * (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
 * Copyright 2007 Wolfson Microelectronics PLC.
 */

#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>

#include <sound/core.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>

#include "../codecs/rt5640.h"

#include "tegra_asoc_utils.h"

#define DRV_NAME "tegra-snd-rt5640"

struct tegra_rt5640 {
	struct tegra_asoc_utils_data util_data;
	int gpio_hp_det;
	enum of_gpio_flags gpio_hp_det_flags;
};

static int tegra_rt5640_asoc_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_card *card = rtd->card;
	struct tegra_rt5640 *machine = snd_soc_card_get_drvdata(card);
	int srate, mclk;
	int err;

	srate = params_rate(params);
	mclk = 256 * srate;

	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
	if (err < 0) {
		dev_err(card->dev, "Can't configure clocks\n");
		return err;
	}

	err = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_MCLK, mclk,
					SND_SOC_CLOCK_IN);
	if (err < 0) {
		dev_err(card->dev, "codec_dai clock not set\n");
		return err;
	}

	return 0;
}

static const struct snd_soc_ops tegra_rt5640_ops = {
	.hw_params = tegra_rt5640_asoc_hw_params,
};

static struct snd_soc_jack tegra_rt5640_hp_jack;

static struct snd_soc_jack_pin tegra_rt5640_hp_jack_pins[] = {
	{
		.pin = "Headphones",
		.mask = SND_JACK_HEADPHONE,
	},
};

static struct snd_soc_jack_gpio tegra_rt5640_hp_jack_gpio = {
	.name = "Headphone detection",
	.report = SND_JACK_HEADPHONE,
	.debounce_time = 150,
	.invert = 1,
};

static const struct snd_soc_dapm_widget tegra_rt5640_dapm_widgets[] = {
	SND_SOC_DAPM_HP("Headphones", NULL),
	SND_SOC_DAPM_SPK("Speakers", NULL),
	SND_SOC_DAPM_MIC("Mic Jack", NULL),
};

static const struct snd_kcontrol_new tegra_rt5640_controls[] = {
	SOC_DAPM_PIN_SWITCH("Speakers"),
};

static int tegra_rt5640_asoc_init(struct snd_soc_pcm_runtime *rtd)
{
	struct tegra_rt5640 *machine = snd_soc_card_get_drvdata(rtd->card);

	snd_soc_card_jack_new(rtd->card, "Headphones", SND_JACK_HEADPHONE,
			      &tegra_rt5640_hp_jack, tegra_rt5640_hp_jack_pins,
			      ARRAY_SIZE(tegra_rt5640_hp_jack_pins));

	if (gpio_is_valid(machine->gpio_hp_det)) {
		tegra_rt5640_hp_jack_gpio.gpio = machine->gpio_hp_det;
		tegra_rt5640_hp_jack_gpio.invert =
			!!(machine->gpio_hp_det_flags & OF_GPIO_ACTIVE_LOW);
		snd_soc_jack_add_gpios(&tegra_rt5640_hp_jack,
						1,
						&tegra_rt5640_hp_jack_gpio);
	}

	return 0;
}

static struct snd_soc_dai_link tegra_rt5640_dai = {
	.name = "RT5640",
	.stream_name = "RT5640 PCM",
	.codec_dai_name = "rt5640-aif1",
	.init = tegra_rt5640_asoc_init,
	.ops = &tegra_rt5640_ops,
	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
			SND_SOC_DAIFMT_CBS_CFS,
};

static struct snd_soc_card snd_soc_tegra_rt5640 = {
	.name = "tegra-rt5640",
	.owner = THIS_MODULE,
	.dai_link = &tegra_rt5640_dai,
	.num_links = 1,
	.controls = tegra_rt5640_controls,
	.num_controls = ARRAY_SIZE(tegra_rt5640_controls),
	.dapm_widgets = tegra_rt5640_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(tegra_rt5640_dapm_widgets),
	.fully_routed = true,
};

static int tegra_rt5640_probe(struct platform_device *pdev)
{
	struct device_node *np = pdev->dev.of_node;
	struct snd_soc_card *card = &snd_soc_tegra_rt5640;
	struct tegra_rt5640 *machine;
	int ret;

	machine = devm_kzalloc(&pdev->dev,
			sizeof(struct tegra_rt5640), GFP_KERNEL);
	if (!machine)
		return -ENOMEM;

	card->dev = &pdev->dev;
	snd_soc_card_set_drvdata(card, machine);

	machine->gpio_hp_det = of_get_named_gpio_flags(
		np, "nvidia,hp-det-gpios", 0, &machine->gpio_hp_det_flags);
	if (machine->gpio_hp_det == -EPROBE_DEFER)
		return -EPROBE_DEFER;

	ret = snd_soc_of_parse_card_name(card, "nvidia,model");
	if (ret)
		goto err;

	ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
	if (ret)
		goto err;

	tegra_rt5640_dai.codec_of_node = of_parse_phandle(np,
			"nvidia,audio-codec", 0);
	if (!tegra_rt5640_dai.codec_of_node) {
		dev_err(&pdev->dev,
			"Property 'nvidia,audio-codec' missing or invalid\n");
		ret = -EINVAL;
		goto err;
	}

	tegra_rt5640_dai.cpu_of_node = of_parse_phandle(np,
			"nvidia,i2s-controller", 0);
	if (!tegra_rt5640_dai.cpu_of_node) {
		dev_err(&pdev->dev,
			"Property 'nvidia,i2s-controller' missing or invalid\n");
		ret = -EINVAL;
		goto err;
	}

	tegra_rt5640_dai.platform_of_node = tegra_rt5640_dai.cpu_of_node;

	ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev);
	if (ret)
		goto err;

	ret = snd_soc_register_card(card);
	if (ret) {
		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
			ret);
		goto err_fini_utils;
	}

	return 0;

err_fini_utils:
	tegra_asoc_utils_fini(&machine->util_data);
err:
	return ret;
}

static int tegra_rt5640_remove(struct platform_device *pdev)
{
	struct snd_soc_card *card = platform_get_drvdata(pdev);
	struct tegra_rt5640 *machine = snd_soc_card_get_drvdata(card);

	snd_soc_unregister_card(card);

	tegra_asoc_utils_fini(&machine->util_data);

	return 0;
}

static const struct of_device_id tegra_rt5640_of_match[] = {
	{ .compatible = "nvidia,tegra-audio-rt5640", },
	{},
};

static struct platform_driver tegra_rt5640_driver = {
	.driver = {
		.name = DRV_NAME,
		.pm = &snd_soc_pm_ops,
		.of_match_table = tegra_rt5640_of_match,
	},
	.probe = tegra_rt5640_probe,
	.remove = tegra_rt5640_remove,
};
module_platform_driver(tegra_rt5640_driver);

MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
MODULE_DESCRIPTION("Tegra+RT5640 machine ASoC driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:" DRV_NAME);
MODULE_DEVICE_TABLE(of, tegra_rt5640_of_match);
Commit	Line	Data
9952f691	1	// SPDX-License-Identifier: GPL-2.0-only
040a62cf	2	/*
c614a312	3	* tegra_rt5640.c - Tegra machine ASoC driver for boards using RT5640 codec.
040a62cf SW	4	*
	5	* Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved.
	6	*
040a62cf SW	7	* Based on code copyright/by:
	8	*
	9	* Copyright (C) 2010-2012 - NVIDIA, Inc.
	10	* Copyright (C) 2011 The AC100 Kernel Team <ac100@lists.lauchpad.net>
	11	* (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
	12	* Copyright 2007 Wolfson Microelectronics PLC.
	13	*/
	14
	15	#include <linux/module.h>
	16	#include <linux/platform_device.h>
	17	#include <linux/slab.h>
	18	#include <linux/gpio.h>
	19	#include <linux/of_gpio.h>
	20
	21	#include <sound/core.h>
	22	#include <sound/jack.h>
	23	#include <sound/pcm.h>
	24	#include <sound/pcm_params.h>
	25	#include <sound/soc.h>
	26
	27	#include "../codecs/rt5640.h"
	28
	29	#include "tegra_asoc_utils.h"
	30
	31	#define DRV_NAME "tegra-snd-rt5640"
	32
	33	struct tegra_rt5640 {
	34	struct tegra_asoc_utils_data util_data;
	35	int gpio_hp_det;
469cda29	36	enum of_gpio_flags gpio_hp_det_flags;
040a62cf SW	37	};
	38
	39	static int tegra_rt5640_asoc_hw_params(struct snd_pcm_substream *substream,
	40	struct snd_pcm_hw_params *params)
	41	{
	42	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	43	struct snd_soc_dai *codec_dai = rtd->codec_dai;
093c4e5c	44	struct snd_soc_card *card = rtd->card;
040a62cf SW	45	struct tegra_rt5640 *machine = snd_soc_card_get_drvdata(card);
	46	int srate, mclk;
	47	int err;
	48
	49	srate = params_rate(params);
	50	mclk = 256 * srate;
	51
	52	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
	53	if (err < 0) {
	54	dev_err(card->dev, "Can't configure clocks\n");
	55	return err;
	56	}
	57
	58	err = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_MCLK, mclk,
	59	SND_SOC_CLOCK_IN);
	60	if (err < 0) {
	61	dev_err(card->dev, "codec_dai clock not set\n");
	62	return err;
	63	}
	64
	65	return 0;
	66	}
	67
8a7a282b	68	static const struct snd_soc_ops tegra_rt5640_ops = {
040a62cf SW	69	.hw_params = tegra_rt5640_asoc_hw_params,
	70	};
	71
	72	static struct snd_soc_jack tegra_rt5640_hp_jack;
	73
	74	static struct snd_soc_jack_pin tegra_rt5640_hp_jack_pins[] = {
	75	{
	76	.pin = "Headphones",
	77	.mask = SND_JACK_HEADPHONE,
	78	},
	79	};
	80
	81	static struct snd_soc_jack_gpio tegra_rt5640_hp_jack_gpio = {
	82	.name = "Headphone detection",
	83	.report = SND_JACK_HEADPHONE,
	84	.debounce_time = 150,
	85	.invert = 1,
	86	};
	87
	88	static const struct snd_soc_dapm_widget tegra_rt5640_dapm_widgets[] = {
	89	SND_SOC_DAPM_HP("Headphones", NULL),
	90	SND_SOC_DAPM_SPK("Speakers", NULL),
7ac0da8c	91	SND_SOC_DAPM_MIC("Mic Jack", NULL),
040a62cf SW	92	};
	93
	94	static const struct snd_kcontrol_new tegra_rt5640_controls[] = {
	95	SOC_DAPM_PIN_SWITCH("Speakers"),
	96	};
	97
	98	static int tegra_rt5640_asoc_init(struct snd_soc_pcm_runtime *rtd)
	99	{
093c4e5c	100	struct tegra_rt5640 *machine = snd_soc_card_get_drvdata(rtd->card);
040a62cf	101
00eafe3b LPC	102	snd_soc_card_jack_new(rtd->card, "Headphones", SND_JACK_HEADPHONE,
	103	&tegra_rt5640_hp_jack, tegra_rt5640_hp_jack_pins,
	104	ARRAY_SIZE(tegra_rt5640_hp_jack_pins));
040a62cf SW	105
	106	if (gpio_is_valid(machine->gpio_hp_det)) {
	107	tegra_rt5640_hp_jack_gpio.gpio = machine->gpio_hp_det;
469cda29 AB	108	tegra_rt5640_hp_jack_gpio.invert =
469cda29 AB	109	!!(machine->gpio_hp_det_flags & OF_GPIO_ACTIVE_LOW);
040a62cf SW	110	snd_soc_jack_add_gpios(&tegra_rt5640_hp_jack,
	111	1,
	112	&tegra_rt5640_hp_jack_gpio);
	113	}
	114
	115	return 0;
	116	}
	117
	118	static struct snd_soc_dai_link tegra_rt5640_dai = {
	119	.name = "RT5640",
	120	.stream_name = "RT5640 PCM",
	121	.codec_dai_name = "rt5640-aif1",
	122	.init = tegra_rt5640_asoc_init,
	123	.ops = &tegra_rt5640_ops,
	124	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
	125	SND_SOC_DAIFMT_CBS_CFS,
	126	};
	127
	128	static struct snd_soc_card snd_soc_tegra_rt5640 = {
	129	.name = "tegra-rt5640",
	130	.owner = THIS_MODULE,
	131	.dai_link = &tegra_rt5640_dai,
	132	.num_links = 1,
	133	.controls = tegra_rt5640_controls,
	134	.num_controls = ARRAY_SIZE(tegra_rt5640_controls),
	135	.dapm_widgets = tegra_rt5640_dapm_widgets,
	136	.num_dapm_widgets = ARRAY_SIZE(tegra_rt5640_dapm_widgets),
	137	.fully_routed = true,
	138	};
	139
	140	static int tegra_rt5640_probe(struct platform_device *pdev)
	141	{
	142	struct device_node *np = pdev->dev.of_node;
	143	struct snd_soc_card *card = &snd_soc_tegra_rt5640;
	144	struct tegra_rt5640 *machine;
	145	int ret;
	146
	147	machine = devm_kzalloc(&pdev->dev,
	148	sizeof(struct tegra_rt5640), GFP_KERNEL);
e2c187a6	149	if (!machine)
040a62cf	150	return -ENOMEM;
040a62cf SW	151
040a62cf SW	152	card->dev = &pdev->dev;
040a62cf SW	153	snd_soc_card_set_drvdata(card, machine);
040a62cf SW	154
469cda29 AB	155	machine->gpio_hp_det = of_get_named_gpio_flags(
469cda29 AB	156	np, "nvidia,hp-det-gpios", 0, &machine->gpio_hp_det_flags);
040a62cf SW	157	if (machine->gpio_hp_det == -EPROBE_DEFER)
	158	return -EPROBE_DEFER;
	159
	160	ret = snd_soc_of_parse_card_name(card, "nvidia,model");
	161	if (ret)
	162	goto err;
	163
	164	ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
	165	if (ret)
	166	goto err;
	167
	168	tegra_rt5640_dai.codec_of_node = of_parse_phandle(np,
	169	"nvidia,audio-codec", 0);
	170	if (!tegra_rt5640_dai.codec_of_node) {
	171	dev_err(&pdev->dev,
	172	"Property 'nvidia,audio-codec' missing or invalid\n");
	173	ret = -EINVAL;
	174	goto err;
	175	}
	176
	177	tegra_rt5640_dai.cpu_of_node = of_parse_phandle(np,
	178	"nvidia,i2s-controller", 0);
	179	if (!tegra_rt5640_dai.cpu_of_node) {
	180	dev_err(&pdev->dev,
	181	"Property 'nvidia,i2s-controller' missing or invalid\n");
	182	ret = -EINVAL;
	183	goto err;
	184	}
	185
	186	tegra_rt5640_dai.platform_of_node = tegra_rt5640_dai.cpu_of_node;
	187
	188	ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev);
	189	if (ret)
	190	goto err;
	191
	192	ret = snd_soc_register_card(card);
	193	if (ret) {
	194	dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
	195	ret);
	196	goto err_fini_utils;
	197	}
	198
	199	return 0;
	200
	201	err_fini_utils:
	202	tegra_asoc_utils_fini(&machine->util_data);
	203	err:
	204	return ret;
	205	}
	206
	207	static int tegra_rt5640_remove(struct platform_device *pdev)
	208	{
	209	struct snd_soc_card *card = platform_get_drvdata(pdev);
	210	struct tegra_rt5640 *machine = snd_soc_card_get_drvdata(card);
	211
040a62cf SW	212	snd_soc_unregister_card(card);
	213
	214	tegra_asoc_utils_fini(&machine->util_data);
	215
	216	return 0;
	217	}
	218
	219	static const struct of_device_id tegra_rt5640_of_match[] = {
	220	{ .compatible = "nvidia,tegra-audio-rt5640", },
	221	{},
	222	};
	223
	224	static struct platform_driver tegra_rt5640_driver = {
	225	.driver = {
	226	.name = DRV_NAME,
040a62cf SW	227	.pm = &snd_soc_pm_ops,
	228	.of_match_table = tegra_rt5640_of_match,
	229	},
	230	.probe = tegra_rt5640_probe,
	231	.remove = tegra_rt5640_remove,
	232	};
	233	module_platform_driver(tegra_rt5640_driver);
	234
	235	MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
	236	MODULE_DESCRIPTION("Tegra+RT5640 machine ASoC driver");
	237	MODULE_LICENSE("GPL v2");
	238	MODULE_ALIAS("platform:" DRV_NAME);
	239	MODULE_DEVICE_TABLE(of, tegra_rt5640_of_match);