[mirror_ubuntu-jammy-kernel.git] / sound / soc / tegra / tegra_wm8903.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * tegra_wm8903.c - Tegra machine ASoC driver for boards using WM8903 codec.
 *
 * Author: Stephen Warren <swarren@nvidia.com>
 * Copyright (C) 2010-2012 - NVIDIA, Inc.
 *
 * Based on code copyright/by:
 *
 * (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
 *
 * Copyright 2007 Wolfson Microelectronics PLC.
 * Author: Graeme Gregory
 *         graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
 */

#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/wm8903.h"

#include "tegra_asoc_utils.h"

#define DRV_NAME "tegra-snd-wm8903"

struct tegra_wm8903 {
	int gpio_spkr_en;
	int gpio_hp_det;
	int gpio_hp_mute;
	int gpio_int_mic_en;
	int gpio_ext_mic_en;
	struct tegra_asoc_utils_data util_data;
};

static int tegra_wm8903_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_wm8903 *machine = snd_soc_card_get_drvdata(card);
	int srate, mclk;
	int err;

	srate = params_rate(params);
	switch (srate) {
	case 64000:
	case 88200:
	case 96000:
		mclk = 128 * srate;
		break;
	default:
		mclk = 256 * srate;
		break;
	}
	/* FIXME: Codec only requires >= 3MHz if OSR==0 */
	while (mclk < 6000000)
		mclk *= 2;

	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 const struct snd_soc_ops tegra_wm8903_ops = {
	.hw_params = tegra_wm8903_hw_params,
};

static struct snd_soc_jack tegra_wm8903_hp_jack;

static struct snd_soc_jack_pin tegra_wm8903_hp_jack_pins[] = {
	{
		.pin = "Headphone Jack",
		.mask = SND_JACK_HEADPHONE,
	},
};

static struct snd_soc_jack_gpio tegra_wm8903_hp_jack_gpio = {
	.name = "headphone detect",
	.report = SND_JACK_HEADPHONE,
	.debounce_time = 150,
	.invert = 1,
};

static struct snd_soc_jack tegra_wm8903_mic_jack;

static struct snd_soc_jack_pin tegra_wm8903_mic_jack_pins[] = {
	{
		.pin = "Mic Jack",
		.mask = SND_JACK_MICROPHONE,
	},
};

static int tegra_wm8903_event_int_spk(struct snd_soc_dapm_widget *w,
					struct snd_kcontrol *k, int event)
{
	struct snd_soc_dapm_context *dapm = w->dapm;
	struct snd_soc_card *card = dapm->card;
	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);

	if (!gpio_is_valid(machine->gpio_spkr_en))
		return 0;

	gpio_set_value_cansleep(machine->gpio_spkr_en,
				SND_SOC_DAPM_EVENT_ON(event));

	return 0;
}

static int tegra_wm8903_event_hp(struct snd_soc_dapm_widget *w,
					struct snd_kcontrol *k, int event)
{
	struct snd_soc_dapm_context *dapm = w->dapm;
	struct snd_soc_card *card = dapm->card;
	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);

	if (!gpio_is_valid(machine->gpio_hp_mute))
		return 0;

	gpio_set_value_cansleep(machine->gpio_hp_mute,
				!SND_SOC_DAPM_EVENT_ON(event));

	return 0;
}

static const struct snd_soc_dapm_widget tegra_wm8903_dapm_widgets[] = {
	SND_SOC_DAPM_SPK("Int Spk", tegra_wm8903_event_int_spk),
	SND_SOC_DAPM_HP("Headphone Jack", tegra_wm8903_event_hp),
	SND_SOC_DAPM_MIC("Mic Jack", NULL),
};

static const struct snd_kcontrol_new tegra_wm8903_controls[] = {
	SOC_DAPM_PIN_SWITCH("Int Spk"),
};

static int tegra_wm8903_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	struct snd_soc_component *component = codec_dai->component;
	struct snd_soc_card *card = rtd->card;
	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);

	if (gpio_is_valid(machine->gpio_hp_det)) {
		tegra_wm8903_hp_jack_gpio.gpio = machine->gpio_hp_det;
		snd_soc_card_jack_new(rtd->card, "Headphone Jack",
				      SND_JACK_HEADPHONE, &tegra_wm8903_hp_jack,
				      tegra_wm8903_hp_jack_pins,
				      ARRAY_SIZE(tegra_wm8903_hp_jack_pins));
		snd_soc_jack_add_gpios(&tegra_wm8903_hp_jack,
					1,
					&tegra_wm8903_hp_jack_gpio);
	}

	snd_soc_card_jack_new(rtd->card, "Mic Jack", SND_JACK_MICROPHONE,
			      &tegra_wm8903_mic_jack,
			      tegra_wm8903_mic_jack_pins,
			      ARRAY_SIZE(tegra_wm8903_mic_jack_pins));
	wm8903_mic_detect(component, &tegra_wm8903_mic_jack, SND_JACK_MICROPHONE,
				0);

	snd_soc_dapm_force_enable_pin(&card->dapm, "MICBIAS");

	return 0;
}

static int tegra_wm8903_remove(struct snd_soc_card *card)
{
	struct snd_soc_pcm_runtime *rtd =
		snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	struct snd_soc_component *component = codec_dai->component;

	wm8903_mic_detect(component, NULL, 0, 0);

	return 0;
}

static struct snd_soc_dai_link tegra_wm8903_dai = {
	.name = "WM8903",
	.stream_name = "WM8903 PCM",
	.codec_dai_name = "wm8903-hifi",
	.init = tegra_wm8903_init,
	.ops = &tegra_wm8903_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_wm8903 = {
	.name = "tegra-wm8903",
	.owner = THIS_MODULE,
	.dai_link = &tegra_wm8903_dai,
	.num_links = 1,
	.remove = tegra_wm8903_remove,
	.controls = tegra_wm8903_controls,
	.num_controls = ARRAY_SIZE(tegra_wm8903_controls),
	.dapm_widgets = tegra_wm8903_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(tegra_wm8903_dapm_widgets),
	.fully_routed = true,
};

static int tegra_wm8903_driver_probe(struct platform_device *pdev)
{
	struct device_node *np = pdev->dev.of_node;
	struct snd_soc_card *card = &snd_soc_tegra_wm8903;
	struct tegra_wm8903 *machine;
	int ret;

	machine = devm_kzalloc(&pdev->dev, sizeof(struct tegra_wm8903),
			       GFP_KERNEL);
	if (!machine)
		return -ENOMEM;

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

	machine->gpio_spkr_en = of_get_named_gpio(np, "nvidia,spkr-en-gpios",
						  0);
	if (machine->gpio_spkr_en == -EPROBE_DEFER)
		return -EPROBE_DEFER;
	if (gpio_is_valid(machine->gpio_spkr_en)) {
		ret = devm_gpio_request_one(&pdev->dev, machine->gpio_spkr_en,
					    GPIOF_OUT_INIT_LOW, "spkr_en");
		if (ret) {
			dev_err(card->dev, "cannot get spkr_en gpio\n");
			return ret;
		}
	}

	machine->gpio_hp_mute = of_get_named_gpio(np, "nvidia,hp-mute-gpios",
						  0);
	if (machine->gpio_hp_mute == -EPROBE_DEFER)
		return -EPROBE_DEFER;
	if (gpio_is_valid(machine->gpio_hp_mute)) {
		ret = devm_gpio_request_one(&pdev->dev, machine->gpio_hp_mute,
					    GPIOF_OUT_INIT_HIGH, "hp_mute");
		if (ret) {
			dev_err(card->dev, "cannot get hp_mute gpio\n");
			return ret;
		}
	}

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

	machine->gpio_int_mic_en = of_get_named_gpio(np,
						"nvidia,int-mic-en-gpios", 0);
	if (machine->gpio_int_mic_en == -EPROBE_DEFER)
		return -EPROBE_DEFER;
	if (gpio_is_valid(machine->gpio_int_mic_en)) {
		/* Disable int mic; enable signal is active-high */
		ret = devm_gpio_request_one(&pdev->dev,
					    machine->gpio_int_mic_en,
					    GPIOF_OUT_INIT_LOW, "int_mic_en");
		if (ret) {
			dev_err(card->dev, "cannot get int_mic_en gpio\n");
			return ret;
		}
	}

	machine->gpio_ext_mic_en = of_get_named_gpio(np,
						"nvidia,ext-mic-en-gpios", 0);
	if (machine->gpio_ext_mic_en == -EPROBE_DEFER)
		return -EPROBE_DEFER;
	if (gpio_is_valid(machine->gpio_ext_mic_en)) {
		/* Enable ext mic; enable signal is active-low */
		ret = devm_gpio_request_one(&pdev->dev,
					    machine->gpio_ext_mic_en,
					    GPIOF_OUT_INIT_LOW, "ext_mic_en");
		if (ret) {
			dev_err(card->dev, "cannot get ext_mic_en gpio\n");
			return ret;
		}
	}

	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_wm8903_dai.codec_of_node = of_parse_phandle(np,
						"nvidia,audio-codec", 0);
	if (!tegra_wm8903_dai.codec_of_node) {
		dev_err(&pdev->dev,
			"Property 'nvidia,audio-codec' missing or invalid\n");
		ret = -EINVAL;
		goto err;
	}

	tegra_wm8903_dai.cpu_of_node = of_parse_phandle(np,
			"nvidia,i2s-controller", 0);
	if (!tegra_wm8903_dai.cpu_of_node) {
		dev_err(&pdev->dev,
			"Property 'nvidia,i2s-controller' missing or invalid\n");
		ret = -EINVAL;
		goto err;
	}

	tegra_wm8903_dai.platform_of_node = tegra_wm8903_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_wm8903_driver_remove(struct platform_device *pdev)
{
	struct snd_soc_card *card = platform_get_drvdata(pdev);
	struct tegra_wm8903 *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_wm8903_of_match[] = {
	{ .compatible = "nvidia,tegra-audio-wm8903", },
	{},
};

static struct platform_driver tegra_wm8903_driver = {
	.driver = {
		.name = DRV_NAME,
		.pm = &snd_soc_pm_ops,
		.of_match_table = tegra_wm8903_of_match,
	},
	.probe = tegra_wm8903_driver_probe,
	.remove = tegra_wm8903_driver_remove,
};
module_platform_driver(tegra_wm8903_driver);

MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
MODULE_DESCRIPTION("Tegra+WM8903 machine ASoC driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:" DRV_NAME);
MODULE_DEVICE_TABLE(of, tegra_wm8903_of_match);
Commit	Line	Data
2b27bdcc	1	// SPDX-License-Identifier: GPL-2.0-only
a8bf1ba1	2	/*
dc0a50af	3	* tegra_wm8903.c - Tegra machine ASoC driver for boards using WM8903 codec.
a8bf1ba1 SW	4	*
a8bf1ba1 SW	5	* Author: Stephen Warren <swarren@nvidia.com>
518de86b	6	* Copyright (C) 2010-2012 - NVIDIA, Inc.
a8bf1ba1 SW	7	*
	8	* Based on code copyright/by:
	9	*
	10	* (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
	11	*
	12	* Copyright 2007 Wolfson Microelectronics PLC.
	13	* Author: Graeme Gregory
	14	* graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
a8bf1ba1 SW	15	*/
a8bf1ba1 SW	16
a8bf1ba1	17	#include <linux/module.h>
72de2b1a SW	18	#include <linux/platform_device.h>
72de2b1a SW	19	#include <linux/slab.h>
6e267645	20	#include <linux/gpio.h>
07cdf36d	21	#include <linux/of_gpio.h>
6e267645	22
a8bf1ba1	23	#include <sound/core.h>
f7d3e403	24	#include <sound/jack.h>
a8bf1ba1 SW	25	#include <sound/pcm.h>
	26	#include <sound/pcm_params.h>
	27	#include <sound/soc.h>
	28
41b5f9b3 SW	29	#include "../codecs/wm8903.h"
41b5f9b3 SW	30
a8bf1ba1 SW	31	#include "tegra_asoc_utils.h"
a8bf1ba1 SW	32
7b33af25	33	#define DRV_NAME "tegra-snd-wm8903"
a8bf1ba1	34
dc0a50af	35	struct tegra_wm8903 {
8f5f5e0f SW	36	int gpio_spkr_en;
	37	int gpio_hp_det;
	38	int gpio_hp_mute;
	39	int gpio_int_mic_en;
	40	int gpio_ext_mic_en;
d64e57ce	41	struct tegra_asoc_utils_data util_data;
72de2b1a	42	};
a8bf1ba1	43
dc0a50af	44	static int tegra_wm8903_hw_params(struct snd_pcm_substream *substream,
a8bf1ba1 SW	45	struct snd_pcm_hw_params *params)
	46	{
	47	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	48	struct snd_soc_dai *codec_dai = rtd->codec_dai;
093c4e5c	49	struct snd_soc_card *card = rtd->card;
dc0a50af	50	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
07541396	51	int srate, mclk;
a8bf1ba1 SW	52	int err;
	53
	54	srate = params_rate(params);
	55	switch (srate) {
	56	case 64000:
	57	case 88200:
	58	case 96000:
	59	mclk = 128 * srate;
	60	break;
	61	default:
	62	mclk = 256 * srate;
	63	break;
	64	}
	65	/* FIXME: Codec only requires >= 3MHz if OSR==0 */
	66	while (mclk < 6000000)
	67	mclk *= 2;
	68
07541396	69	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
a8bf1ba1	70	if (err < 0) {
c244d477	71	dev_err(card->dev, "Can't configure clocks\n");
a8bf1ba1 SW	72	return err;
	73	}
	74
07541396 SW	75	err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
	76	SND_SOC_CLOCK_IN);
	77	if (err < 0) {
	78	dev_err(card->dev, "codec_dai clock not set\n");
	79	return err;
a8bf1ba1 SW	80	}
	81
	82	return 0;
	83	}
	84
8a7a282b	85	static const struct snd_soc_ops tegra_wm8903_ops = {
dc0a50af	86	.hw_params = tegra_wm8903_hw_params,
a8bf1ba1 SW	87	};
a8bf1ba1 SW	88
dc0a50af	89	static struct snd_soc_jack tegra_wm8903_hp_jack;
f7d3e403	90
dc0a50af	91	static struct snd_soc_jack_pin tegra_wm8903_hp_jack_pins[] = {
f7d3e403 SW	92	{
	93	.pin = "Headphone Jack",
	94	.mask = SND_JACK_HEADPHONE,
	95	},
	96	};
	97
3eb25f99 SW	98	static struct snd_soc_jack_gpio tegra_wm8903_hp_jack_gpio = {
	99	.name = "headphone detect",
	100	.report = SND_JACK_HEADPHONE,
	101	.debounce_time = 150,
	102	.invert = 1,
f7d3e403 SW	103	};
f7d3e403 SW	104
dc0a50af	105	static struct snd_soc_jack tegra_wm8903_mic_jack;
41b5f9b3	106
dc0a50af	107	static struct snd_soc_jack_pin tegra_wm8903_mic_jack_pins[] = {
41b5f9b3 SW	108	{
	109	.pin = "Mic Jack",
	110	.mask = SND_JACK_MICROPHONE,
	111	},
	112	};
	113
dc0a50af	114	static int tegra_wm8903_event_int_spk(struct snd_soc_dapm_widget *w,
6e267645 SW	115	struct snd_kcontrol *k, int event)
6e267645 SW	116	{
a32955db SW	117	struct snd_soc_dapm_context *dapm = w->dapm;
a32955db SW	118	struct snd_soc_card *card = dapm->card;
dc0a50af	119	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
6e267645	120
8f5f5e0f	121	if (!gpio_is_valid(machine->gpio_spkr_en))
773b1d3d SW	122	return 0;
773b1d3d SW	123
8f5f5e0f	124	gpio_set_value_cansleep(machine->gpio_spkr_en,
f9eabc3d	125	SND_SOC_DAPM_EVENT_ON(event));
6e267645 SW	126
	127	return 0;
	128	}
	129
773b1d3d SW	130	static int tegra_wm8903_event_hp(struct snd_soc_dapm_widget *w,
	131	struct snd_kcontrol *k, int event)
	132	{
a32955db SW	133	struct snd_soc_dapm_context *dapm = w->dapm;
a32955db SW	134	struct snd_soc_card *card = dapm->card;
773b1d3d	135	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
773b1d3d	136
8f5f5e0f	137	if (!gpio_is_valid(machine->gpio_hp_mute))
773b1d3d SW	138	return 0;
773b1d3d SW	139
8f5f5e0f	140	gpio_set_value_cansleep(machine->gpio_hp_mute,
773b1d3d SW	141	!SND_SOC_DAPM_EVENT_ON(event));
	142
	143	return 0;
	144	}
	145
dc0a50af SW	146	static const struct snd_soc_dapm_widget tegra_wm8903_dapm_widgets[] = {
dc0a50af SW	147	SND_SOC_DAPM_SPK("Int Spk", tegra_wm8903_event_int_spk),
773b1d3d	148	SND_SOC_DAPM_HP("Headphone Jack", tegra_wm8903_event_hp),
62ffac4d SW	149	SND_SOC_DAPM_MIC("Mic Jack", NULL),
	150	};
	151
dc0a50af	152	static const struct snd_kcontrol_new tegra_wm8903_controls[] = {
3d8bc390 SW	153	SOC_DAPM_PIN_SWITCH("Int Spk"),
	154	};
	155
dc0a50af	156	static int tegra_wm8903_init(struct snd_soc_pcm_runtime *rtd)
62ffac4d	157	{
40db77a0	158	struct snd_soc_dai *codec_dai = rtd->codec_dai;
58bd2934	159	struct snd_soc_component *component = codec_dai->component;
093c4e5c	160	struct snd_soc_card *card = rtd->card;
dc0a50af	161	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
bf1b1328	162
8f5f5e0f SW	163	if (gpio_is_valid(machine->gpio_hp_det)) {
8f5f5e0f SW	164	tegra_wm8903_hp_jack_gpio.gpio = machine->gpio_hp_det;
7ba8cbb2 LPC	165	snd_soc_card_jack_new(rtd->card, "Headphone Jack",
	166	SND_JACK_HEADPHONE, &tegra_wm8903_hp_jack,
	167	tegra_wm8903_hp_jack_pins,
	168	ARRAY_SIZE(tegra_wm8903_hp_jack_pins));
773b1d3d SW	169	snd_soc_jack_add_gpios(&tegra_wm8903_hp_jack,
	170	1,
	171	&tegra_wm8903_hp_jack_gpio);
	172	}
f7d3e403	173
7ba8cbb2 LPC	174	snd_soc_card_jack_new(rtd->card, "Mic Jack", SND_JACK_MICROPHONE,
	175	&tegra_wm8903_mic_jack,
	176	tegra_wm8903_mic_jack_pins,
	177	ARRAY_SIZE(tegra_wm8903_mic_jack_pins));
58bd2934	178	wm8903_mic_detect(component, &tegra_wm8903_mic_jack, SND_JACK_MICROPHONE,
dc0a50af	179	0);
41b5f9b3	180
14e954f5	181	snd_soc_dapm_force_enable_pin(&card->dapm, "MICBIAS");
41b5f9b3	182
62ffac4d SW	183	return 0;
	184	}
	185
3419ae78 SW	186	static int tegra_wm8903_remove(struct snd_soc_card *card)
3419ae78 SW	187	{
5015920a ML	188	struct snd_soc_pcm_runtime *rtd =
5015920a ML	189	snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
3419ae78	190	struct snd_soc_dai *codec_dai = rtd->codec_dai;
58bd2934	191	struct snd_soc_component *component = codec_dai->component;
fb6b8e71	192
58bd2934	193	wm8903_mic_detect(component, NULL, 0, 0);
3419ae78 SW	194
	195	return 0;
	196	}
	197
dc0a50af	198	static struct snd_soc_dai_link tegra_wm8903_dai = {
a8bf1ba1 SW	199	.name = "WM8903",
a8bf1ba1 SW	200	.stream_name = "WM8903 PCM",
a8bf1ba1	201	.codec_dai_name = "wm8903-hifi",
dc0a50af SW	202	.init = tegra_wm8903_init,
dc0a50af SW	203	.ops = &tegra_wm8903_ops,
408dafc4 SW	204	.dai_fmt = SND_SOC_DAIFMT_I2S \|
	205	SND_SOC_DAIFMT_NB_NF \|
	206	SND_SOC_DAIFMT_CBS_CFS,
a8bf1ba1 SW	207	};
a8bf1ba1 SW	208
dc0a50af SW	209	static struct snd_soc_card snd_soc_tegra_wm8903 = {
dc0a50af SW	210	.name = "tegra-wm8903",
b16eaf9f	211	.owner = THIS_MODULE,
dc0a50af	212	.dai_link = &tegra_wm8903_dai,
a8bf1ba1	213	.num_links = 1,
3419ae78	214	.remove = tegra_wm8903_remove,
dea8b6ee SW	215	.controls = tegra_wm8903_controls,
	216	.num_controls = ARRAY_SIZE(tegra_wm8903_controls),
	217	.dapm_widgets = tegra_wm8903_dapm_widgets,
	218	.num_dapm_widgets = ARRAY_SIZE(tegra_wm8903_dapm_widgets),
6e5fdba9	219	.fully_routed = true,
a8bf1ba1 SW	220	};
a8bf1ba1 SW	221
4652a0d0	222	static int tegra_wm8903_driver_probe(struct platform_device *pdev)
a8bf1ba1	223	{
f51022f1	224	struct device_node *np = pdev->dev.of_node;
dc0a50af SW	225	struct snd_soc_card *card = &snd_soc_tegra_wm8903;
dc0a50af SW	226	struct tegra_wm8903 *machine;
a8bf1ba1 SW	227	int ret;
a8bf1ba1 SW	228
e4e4c18a SW	229	machine = devm_kzalloc(&pdev->dev, sizeof(struct tegra_wm8903),
e4e4c18a SW	230	GFP_KERNEL);
e2c187a6	231	if (!machine)
8f5f5e0f	232	return -ENOMEM;
a8bf1ba1	233
72de2b1a	234	card->dev = &pdev->dev;
dc0a50af	235	snd_soc_card_set_drvdata(card, machine);
a8bf1ba1	236
8f5f5e0f SW	237	machine->gpio_spkr_en = of_get_named_gpio(np, "nvidia,spkr-en-gpios",
	238	0);
	239	if (machine->gpio_spkr_en == -EPROBE_DEFER)
	240	return -EPROBE_DEFER;
	241	if (gpio_is_valid(machine->gpio_spkr_en)) {
	242	ret = devm_gpio_request_one(&pdev->dev, machine->gpio_spkr_en,
e2d287c1	243	GPIOF_OUT_INIT_LOW, "spkr_en");
f51022f1 SW	244	if (ret) {
	245	dev_err(card->dev, "cannot get spkr_en gpio\n");
	246	return ret;
	247	}
f51022f1 SW	248	}
f51022f1 SW	249
8f5f5e0f SW	250	machine->gpio_hp_mute = of_get_named_gpio(np, "nvidia,hp-mute-gpios",
	251	0);
	252	if (machine->gpio_hp_mute == -EPROBE_DEFER)
	253	return -EPROBE_DEFER;
	254	if (gpio_is_valid(machine->gpio_hp_mute)) {
	255	ret = devm_gpio_request_one(&pdev->dev, machine->gpio_hp_mute,
e2d287c1	256	GPIOF_OUT_INIT_HIGH, "hp_mute");
f51022f1 SW	257	if (ret) {
	258	dev_err(card->dev, "cannot get hp_mute gpio\n");
	259	return ret;
	260	}
f51022f1 SW	261	}
f51022f1 SW	262
8f5f5e0f SW	263	machine->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0);
	264	if (machine->gpio_hp_det == -EPROBE_DEFER)
	265	return -EPROBE_DEFER;
	266
	267	machine->gpio_int_mic_en = of_get_named_gpio(np,
	268	"nvidia,int-mic-en-gpios", 0);
	269	if (machine->gpio_int_mic_en == -EPROBE_DEFER)
	270	return -EPROBE_DEFER;
	271	if (gpio_is_valid(machine->gpio_int_mic_en)) {
e2d287c1	272	/* Disable int mic; enable signal is active-high */
8f5f5e0f SW	273	ret = devm_gpio_request_one(&pdev->dev,
8f5f5e0f SW	274	machine->gpio_int_mic_en,
e2d287c1	275	GPIOF_OUT_INIT_LOW, "int_mic_en");
f51022f1 SW	276	if (ret) {
	277	dev_err(card->dev, "cannot get int_mic_en gpio\n");
	278	return ret;
	279	}
f51022f1 SW	280	}
f51022f1 SW	281
8f5f5e0f SW	282	machine->gpio_ext_mic_en = of_get_named_gpio(np,
	283	"nvidia,ext-mic-en-gpios", 0);
	284	if (machine->gpio_ext_mic_en == -EPROBE_DEFER)
	285	return -EPROBE_DEFER;
	286	if (gpio_is_valid(machine->gpio_ext_mic_en)) {
e2d287c1	287	/* Enable ext mic; enable signal is active-low */
8f5f5e0f SW	288	ret = devm_gpio_request_one(&pdev->dev,
8f5f5e0f SW	289	machine->gpio_ext_mic_en,
e2d287c1	290	GPIOF_OUT_INIT_LOW, "ext_mic_en");
f51022f1 SW	291	if (ret) {
	292	dev_err(card->dev, "cannot get ext_mic_en gpio\n");
	293	return ret;
	294	}
f51022f1 SW	295	}
f51022f1 SW	296
8f5f5e0f SW	297	ret = snd_soc_of_parse_card_name(card, "nvidia,model");
	298	if (ret)
	299	goto err;
	300
	301	ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
	302	if (ret)
	303	goto err;
	304
	305	tegra_wm8903_dai.codec_of_node = of_parse_phandle(np,
	306	"nvidia,audio-codec", 0);
	307	if (!tegra_wm8903_dai.codec_of_node) {
	308	dev_err(&pdev->dev,
	309	"Property 'nvidia,audio-codec' missing or invalid\n");
	310	ret = -EINVAL;
	311	goto err;
	312	}
	313
	314	tegra_wm8903_dai.cpu_of_node = of_parse_phandle(np,
	315	"nvidia,i2s-controller", 0);
	316	if (!tegra_wm8903_dai.cpu_of_node) {
	317	dev_err(&pdev->dev,
	318	"Property 'nvidia,i2s-controller' missing or invalid\n");
	319	ret = -EINVAL;
	320	goto err;
	321	}
	322
	323	tegra_wm8903_dai.platform_of_node = tegra_wm8903_dai.cpu_of_node;
	324
07cdf36d SW	325	ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev);
07cdf36d SW	326	if (ret)
518de86b	327	goto err;
07cdf36d	328
72de2b1a	329	ret = snd_soc_register_card(card);
a8bf1ba1	330	if (ret) {
72de2b1a	331	dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
a8bf1ba1	332	ret);
acb8303f	333	goto err_fini_utils;
a8bf1ba1 SW	334	}
	335
	336	return 0;
	337
acb8303f	338	err_fini_utils:
dc0a50af	339	tegra_asoc_utils_fini(&machine->util_data);
e4e4c18a	340	err:
a8bf1ba1 SW	341	return ret;
a8bf1ba1 SW	342	}
a8bf1ba1	343
4652a0d0	344	static int tegra_wm8903_driver_remove(struct platform_device *pdev)
a8bf1ba1	345	{
72de2b1a	346	struct snd_soc_card *card = platform_get_drvdata(pdev);
dc0a50af	347	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
72de2b1a	348
29591ed4 SW	349	snd_soc_unregister_card(card);
	350
	351	tegra_asoc_utils_fini(&machine->util_data);
6e267645	352
72de2b1a SW	353	return 0;
	354	}
	355
f6e65744	356	static const struct of_device_id tegra_wm8903_of_match[] = {
07cdf36d SW	357	{ .compatible = "nvidia,tegra-audio-wm8903", },
	358	{},
	359	};
	360
dc0a50af	361	static struct platform_driver tegra_wm8903_driver = {
72de2b1a SW	362	.driver = {
72de2b1a SW	363	.name = DRV_NAME,
deb2607e	364	.pm = &snd_soc_pm_ops,
07cdf36d	365	.of_match_table = tegra_wm8903_of_match,
72de2b1a	366	},
dc0a50af	367	.probe = tegra_wm8903_driver_probe,
4652a0d0	368	.remove = tegra_wm8903_driver_remove,
72de2b1a	369	};
e4e4c18a	370	module_platform_driver(tegra_wm8903_driver);
a8bf1ba1 SW	371
a8bf1ba1 SW	372	MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
dc0a50af	373	MODULE_DESCRIPTION("Tegra+WM8903 machine ASoC driver");
a8bf1ba1	374	MODULE_LICENSE("GPL");
8eb34207	375	MODULE_ALIAS("platform:" DRV_NAME);
07cdf36d	376	MODULE_DEVICE_TABLE(of, tegra_wm8903_of_match);