[mirror_ubuntu-bionic-kernel.git] / sound / soc / tegra / tegra_max98090.c

/*
 * Tegra machine ASoC driver for boards using a MAX90809 CODEC.
 *
 * Copyright (c) 2013, NVIDIA CORPORATION.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * 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 "tegra_asoc_utils.h"

#define DRV_NAME "tegra-snd-max98090"

struct tegra_max98090 {
	struct tegra_asoc_utils_data util_data;
	int gpio_hp_det;
};

static int tegra_max98090_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_codec *codec = codec_dai->codec;
	struct snd_soc_card *card = codec->card;
	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
	int srate, mclk;
	int err;

	srate = params_rate(params);
	switch (srate) {
	case 8000:
	case 16000:
	case 24000:
	case 32000:
	case 48000:
	case 64000:
	case 96000:
		mclk = 12288000;
		break;
	case 11025:
	case 22050:
	case 44100:
	case 88200:
		mclk = 11289600;
		break;
	default:
		mclk = 12000000;
		break;
	}

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

	return 0;
}

static struct snd_soc_ops tegra_max98090_ops = {
	.hw_params = tegra_max98090_asoc_hw_params,
};

static struct snd_soc_jack tegra_max98090_hp_jack;

static struct snd_soc_jack_pin tegra_max98090_hp_jack_pins[] = {
	{
		.pin = "Headphones",
		.mask = SND_JACK_HEADPHONE,
	},
};

static struct snd_soc_jack_gpio tegra_max98090_hp_jack_gpio = {
	.name = "Headphone detection",
	.report = SND_JACK_HEADPHONE,
	.debounce_time = 150,
	.invert = 1,
};

static const struct snd_soc_dapm_widget tegra_max98090_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_max98090_controls[] = {
	SOC_DAPM_PIN_SWITCH("Speakers"),
};

static int tegra_max98090_asoc_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	struct snd_soc_codec *codec = codec_dai->codec;
	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(codec->card);

	if (gpio_is_valid(machine->gpio_hp_det)) {
		snd_soc_jack_new(codec, "Headphones", SND_JACK_HEADPHONE,
				&tegra_max98090_hp_jack);
		snd_soc_jack_add_pins(&tegra_max98090_hp_jack,
				ARRAY_SIZE(tegra_max98090_hp_jack_pins),
				tegra_max98090_hp_jack_pins);

		tegra_max98090_hp_jack_gpio.gpio = machine->gpio_hp_det;
		snd_soc_jack_add_gpios(&tegra_max98090_hp_jack,
					1,
					&tegra_max98090_hp_jack_gpio);
	}

	return 0;
}

static int tegra_max98090_card_remove(struct snd_soc_card *card)
{
	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);

	if (gpio_is_valid(machine->gpio_hp_det)) {
		snd_soc_jack_free_gpios(&tegra_max98090_hp_jack, 1,
					&tegra_max98090_hp_jack_gpio);
	}

	return 0;
}

static struct snd_soc_dai_link tegra_max98090_dai = {
	.name = "max98090",
	.stream_name = "max98090 PCM",
	.codec_dai_name = "HiFi",
	.init = tegra_max98090_asoc_init,
	.ops = &tegra_max98090_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_max98090 = {
	.name = "tegra-max98090",
	.owner = THIS_MODULE,
	.remove = tegra_max98090_card_remove,
	.dai_link = &tegra_max98090_dai,
	.num_links = 1,
	.controls = tegra_max98090_controls,
	.num_controls = ARRAY_SIZE(tegra_max98090_controls),
	.dapm_widgets = tegra_max98090_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(tegra_max98090_dapm_widgets),
	.fully_routed = true,
};

static int tegra_max98090_probe(struct platform_device *pdev)
{
	struct device_node *np = pdev->dev.of_node;
	struct snd_soc_card *card = &snd_soc_tegra_max98090;
	struct tegra_max98090 *machine;
	int ret;

	machine = devm_kzalloc(&pdev->dev,
			sizeof(struct tegra_max98090), GFP_KERNEL);
	if (!machine) {
		dev_err(&pdev->dev, "Can't allocate tegra_max98090\n");
		return -ENOMEM;
	}

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

	machine->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0);
	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_max98090_dai.codec_of_node = of_parse_phandle(np,
			"nvidia,audio-codec", 0);
	if (!tegra_max98090_dai.codec_of_node) {
		dev_err(&pdev->dev,
			"Property 'nvidia,audio-codec' missing or invalid\n");
		ret = -EINVAL;
		goto err;
	}

	tegra_max98090_dai.cpu_of_node = of_parse_phandle(np,
			"nvidia,i2s-controller", 0);
	if (!tegra_max98090_dai.cpu_of_node) {
		dev_err(&pdev->dev,
			"Property 'nvidia,i2s-controller' missing or invalid\n");
		ret = -EINVAL;
		goto err;
	}

	tegra_max98090_dai.platform_of_node = tegra_max98090_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_max98090_remove(struct platform_device *pdev)
{
	struct snd_soc_card *card = platform_get_drvdata(pdev);
	struct tegra_max98090 *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_max98090_of_match[] = {
	{ .compatible = "nvidia,tegra-audio-max98090", },
	{},
};

static struct platform_driver tegra_max98090_driver = {
	.driver = {
		.name = DRV_NAME,
		.owner = THIS_MODULE,
		.pm = &snd_soc_pm_ops,
		.of_match_table = tegra_max98090_of_match,
	},
	.probe = tegra_max98090_probe,
	.remove = tegra_max98090_remove,
};
module_platform_driver(tegra_max98090_driver);

MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
MODULE_DESCRIPTION("Tegra max98090 machine ASoC driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:" DRV_NAME);
MODULE_DEVICE_TABLE(of, tegra_max98090_of_match);
Commit	Line	Data
7637af2e SW	1	/*
	2	* Tegra machine ASoC driver for boards using a MAX90809 CODEC.
	3	*
	4	* Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved.
	5	*
	6	* This program is free software; you can redistribute it and/or modify it
	7	* under the terms and conditions of the GNU General Public License,
	8	* version 2, as published by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope it will be useful, but WITHOUT
	11	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	12	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	13	* more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	17	*
	18	* Based on code copyright/by:
	19	*
	20	* Copyright (C) 2010-2012 - NVIDIA, Inc.
	21	* Copyright (C) 2011 The AC100 Kernel Team <ac100@lists.lauchpad.net>
	22	* (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
	23	* Copyright 2007 Wolfson Microelectronics PLC.
	24	*/
	25
	26	#include <linux/module.h>
	27	#include <linux/platform_device.h>
	28	#include <linux/slab.h>
	29	#include <linux/gpio.h>
	30	#include <linux/of_gpio.h>
	31
	32	#include <sound/core.h>
	33	#include <sound/jack.h>
	34	#include <sound/pcm.h>
	35	#include <sound/pcm_params.h>
	36	#include <sound/soc.h>
	37
	38	#include "tegra_asoc_utils.h"
	39
	40	#define DRV_NAME "tegra-snd-max98090"
	41
	42	struct tegra_max98090 {
	43	struct tegra_asoc_utils_data util_data;
	44	int gpio_hp_det;
	45	};
	46
	47	static int tegra_max98090_asoc_hw_params(struct snd_pcm_substream *substream,
	48	struct snd_pcm_hw_params *params)
	49	{
	50	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	51	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	52	struct snd_soc_codec *codec = codec_dai->codec;
	53	struct snd_soc_card *card = codec->card;
	54	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
	55	int srate, mclk;
	56	int err;
	57
	58	srate = params_rate(params);
	59	switch (srate) {
	60	case 8000:
	61	case 16000:
	62	case 24000:
	63	case 32000:
	64	case 48000:
65	case 64000:
66	case 96000:
67	mclk = 12288000;
68	break;
69	case 11025:
70	case 22050:
71	case 44100:
72	case 88200:
73	mclk = 11289600;
74	break;
75	default:
76	mclk = 12000000;
77	break;
78	}
79
80	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
81	if (err < 0) {
82	dev_err(card->dev, "Can't configure clocks\n");
83	return err;
84	}
85
86	err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
87	SND_SOC_CLOCK_IN);
88	if (err < 0) {
89	dev_err(card->dev, "codec_dai clock not set\n");
90	return err;
91	}
92
93	return 0;
94	}
95
96	static struct snd_soc_ops tegra_max98090_ops = {
97	.hw_params = tegra_max98090_asoc_hw_params,
98	};
99
100	static struct snd_soc_jack tegra_max98090_hp_jack;
101
102	static struct snd_soc_jack_pin tegra_max98090_hp_jack_pins[] = {
103	{
104	.pin = "Headphones",
105	.mask = SND_JACK_HEADPHONE,
106	},
107	};
108
109	static struct snd_soc_jack_gpio tegra_max98090_hp_jack_gpio = {
110	.name = "Headphone detection",
111	.report = SND_JACK_HEADPHONE,
112	.debounce_time = 150,
113	.invert = 1,
114	};
115
116	static const struct snd_soc_dapm_widget tegra_max98090_dapm_widgets[] = {
117	SND_SOC_DAPM_HP("Headphones", NULL),
118	SND_SOC_DAPM_SPK("Speakers", NULL),
119	SND_SOC_DAPM_MIC("Mic Jack", NULL),
120	};
121
122	static const struct snd_kcontrol_new tegra_max98090_controls[] = {
123	SOC_DAPM_PIN_SWITCH("Speakers"),
124	};
125
126	static int tegra_max98090_asoc_init(struct snd_soc_pcm_runtime *rtd)
127	{
128	struct snd_soc_dai *codec_dai = rtd->codec_dai;
129	struct snd_soc_codec *codec = codec_dai->codec;
130	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(codec->card);
131
132	if (gpio_is_valid(machine->gpio_hp_det)) {
133	snd_soc_jack_new(codec, "Headphones", SND_JACK_HEADPHONE,
134	&tegra_max98090_hp_jack);
135	snd_soc_jack_add_pins(&tegra_max98090_hp_jack,
136	ARRAY_SIZE(tegra_max98090_hp_jack_pins),
137	tegra_max98090_hp_jack_pins);
138
139	tegra_max98090_hp_jack_gpio.gpio = machine->gpio_hp_det;
140	snd_soc_jack_add_gpios(&tegra_max98090_hp_jack,
141	1,
142	&tegra_max98090_hp_jack_gpio);
143	}
144
145	return 0;
146	}
147
fb6b8e71 SW	148	static int tegra_max98090_card_remove(struct snd_soc_card *card)
	149	{
	150	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
	151
	152	if (gpio_is_valid(machine->gpio_hp_det)) {
	153	snd_soc_jack_free_gpios(&tegra_max98090_hp_jack, 1,
	154	&tegra_max98090_hp_jack_gpio);
	155	}
	156
	157	return 0;
	158	}
	159
7637af2e SW	160	static struct snd_soc_dai_link tegra_max98090_dai = {
	161	.name = "max98090",
	162	.stream_name = "max98090 PCM",
	163	.codec_dai_name = "HiFi",
	164	.init = tegra_max98090_asoc_init,
	165	.ops = &tegra_max98090_ops,
	166	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
	167	SND_SOC_DAIFMT_CBS_CFS,
	168	};
	169
	170	static struct snd_soc_card snd_soc_tegra_max98090 = {
	171	.name = "tegra-max98090",
	172	.owner = THIS_MODULE,
fb6b8e71	173	.remove = tegra_max98090_card_remove,
7637af2e SW	174	.dai_link = &tegra_max98090_dai,
	175	.num_links = 1,
	176	.controls = tegra_max98090_controls,
	177	.num_controls = ARRAY_SIZE(tegra_max98090_controls),
	178	.dapm_widgets = tegra_max98090_dapm_widgets,
	179	.num_dapm_widgets = ARRAY_SIZE(tegra_max98090_dapm_widgets),
	180	.fully_routed = true,
	181	};
	182
	183	static int tegra_max98090_probe(struct platform_device *pdev)
	184	{
	185	struct device_node *np = pdev->dev.of_node;
	186	struct snd_soc_card *card = &snd_soc_tegra_max98090;
	187	struct tegra_max98090 *machine;
	188	int ret;
	189
	190	machine = devm_kzalloc(&pdev->dev,
	191	sizeof(struct tegra_max98090), GFP_KERNEL);
	192	if (!machine) {
	193	dev_err(&pdev->dev, "Can't allocate tegra_max98090\n");
	194	return -ENOMEM;
	195	}
	196
	197	card->dev = &pdev->dev;
	198	platform_set_drvdata(pdev, card);
	199	snd_soc_card_set_drvdata(card, machine);
	200
	201	machine->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0);
	202	if (machine->gpio_hp_det == -EPROBE_DEFER)
	203	return -EPROBE_DEFER;
	204
	205	ret = snd_soc_of_parse_card_name(card, "nvidia,model");
	206	if (ret)
	207	goto err;
	208
	209	ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
	210	if (ret)
	211	goto err;
	212
	213	tegra_max98090_dai.codec_of_node = of_parse_phandle(np,
	214	"nvidia,audio-codec", 0);
	215	if (!tegra_max98090_dai.codec_of_node) {
	216	dev_err(&pdev->dev,
	217	"Property 'nvidia,audio-codec' missing or invalid\n");
	218	ret = -EINVAL;
	219	goto err;
	220	}
	221
	222	tegra_max98090_dai.cpu_of_node = of_parse_phandle(np,
	223	"nvidia,i2s-controller", 0);
	224	if (!tegra_max98090_dai.cpu_of_node) {
	225	dev_err(&pdev->dev,
	226	"Property 'nvidia,i2s-controller' missing or invalid\n");
	227	ret = -EINVAL;
	228	goto err;
	229	}
	230
	231	tegra_max98090_dai.platform_of_node = tegra_max98090_dai.cpu_of_node;
	232
	233	ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev);
	234	if (ret)
	235	goto err;
	236
	237	ret = snd_soc_register_card(card);
238	if (ret) {
239	dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
240	ret);
241	goto err_fini_utils;
242	}
243
244	return 0;
245
246	err_fini_utils:
247	tegra_asoc_utils_fini(&machine->util_data);
248	err:
249	return ret;
250	}
251
252	static int tegra_max98090_remove(struct platform_device *pdev)
253	{
254	struct snd_soc_card *card = platform_get_drvdata(pdev);
255	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
256
7637af2e SW	257	snd_soc_unregister_card(card);
	258
	259	tegra_asoc_utils_fini(&machine->util_data);
	260
	261	return 0;
	262	}
	263
	264	static const struct of_device_id tegra_max98090_of_match[] = {
	265	{ .compatible = "nvidia,tegra-audio-max98090", },
	266	{},
	267	};
	268
	269	static struct platform_driver tegra_max98090_driver = {
	270	.driver = {
	271	.name = DRV_NAME,
	272	.owner = THIS_MODULE,
	273	.pm = &snd_soc_pm_ops,
	274	.of_match_table = tegra_max98090_of_match,
	275	},
	276	.probe = tegra_max98090_probe,
	277	.remove = tegra_max98090_remove,
	278	};
	279	module_platform_driver(tegra_max98090_driver);
	280
	281	MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
	282	MODULE_DESCRIPTION("Tegra max98090 machine ASoC driver");
	283	MODULE_LICENSE("GPL v2");
	284	MODULE_ALIAS("platform:" DRV_NAME);
	285	MODULE_DEVICE_TABLE(of, tegra_max98090_of_match);