1// SPDX-License-Identifier: GPL-2.0-only
  2/*
  3* tegra_alc5632.c  --  Toshiba AC100(PAZ00) machine ASoC driver
  4 *
  5 * Copyright (C) 2011 The AC100 Kernel Team <ac100@lists.lauchpad.net>
  6 * Copyright (C) 2012 - NVIDIA, Inc.
  7 *
  8 * Authors:  Leon Romanovsky <leon@leon.nu>
  9 *           Andrey Danin <danindrey@mail.ru>
 10 *           Marc Dietrich <marvin24@gmx.de>
 11 */
 12
 13#include <linux/module.h>
 14#include <linux/platform_device.h>
 15#include <linux/slab.h>
 16#include <linux/gpio.h>
 17#include <linux/of_gpio.h>
 18
 19#include <sound/core.h>
 20#include <sound/jack.h>
 21#include <sound/pcm.h>
 22#include <sound/pcm_params.h>
 23#include <sound/soc.h>
 24
 25#include "../codecs/alc5632.h"
 26
 27#include "tegra_asoc_utils.h"
 28
 29#define DRV_NAME "tegra-alc5632"
 30
 31struct tegra_alc5632 {
 32	struct tegra_asoc_utils_data util_data;
 33	int gpio_hp_det;
 34};
 35
 36static int tegra_alc5632_asoc_hw_params(struct snd_pcm_substream *substream,
 37					struct snd_pcm_hw_params *params)
 38{
 39	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 40	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 41	struct snd_soc_card *card = rtd->card;
 42	struct tegra_alc5632 *alc5632 = snd_soc_card_get_drvdata(card);
 43	int srate, mclk;
 44	int err;
 45
 46	srate = params_rate(params);
 47	mclk = 512 * srate;
 48
 49	err = tegra_asoc_utils_set_rate(&alc5632->util_data, srate, mclk);
 50	if (err < 0) {
 51		dev_err(card->dev, "Can't configure clocks\n");
 52		return err;
 53	}
 54
 55	err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
 56					SND_SOC_CLOCK_IN);
 57	if (err < 0) {
 58		dev_err(card->dev, "codec_dai clock not set\n");
 59		return err;
 60	}
 61
 62	return 0;
 63}
 64
 65static const struct snd_soc_ops tegra_alc5632_asoc_ops = {
 66	.hw_params = tegra_alc5632_asoc_hw_params,
 67};
 68
 69static struct snd_soc_jack tegra_alc5632_hs_jack;
 70
 71static struct snd_soc_jack_pin tegra_alc5632_hs_jack_pins[] = {
 72	{
 73		.pin = "Headset Mic",
 74		.mask = SND_JACK_MICROPHONE,
 75	},
 76	{
 77		.pin = "Headset Stereophone",
 78		.mask = SND_JACK_HEADPHONE,
 79	},
 80};
 81
 82static struct snd_soc_jack_gpio tegra_alc5632_hp_jack_gpio = {
 83	.name = "Headset detection",
 84	.report = SND_JACK_HEADSET,
 85	.debounce_time = 150,
 86};
 87
 88static const struct snd_soc_dapm_widget tegra_alc5632_dapm_widgets[] = {
 89	SND_SOC_DAPM_SPK("Int Spk", NULL),
 90	SND_SOC_DAPM_HP("Headset Stereophone", NULL),
 91	SND_SOC_DAPM_MIC("Headset Mic", NULL),
 92	SND_SOC_DAPM_MIC("Digital Mic", NULL),
 93};
 94
 95static const struct snd_kcontrol_new tegra_alc5632_controls[] = {
 96	SOC_DAPM_PIN_SWITCH("Int Spk"),
 97};
 98
 99static int tegra_alc5632_asoc_init(struct snd_soc_pcm_runtime *rtd)
100{
101	int ret;
102	struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(rtd->card);
103
104	ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
105				    SND_JACK_HEADSET,
106				    &tegra_alc5632_hs_jack,
107				    tegra_alc5632_hs_jack_pins,
108				    ARRAY_SIZE(tegra_alc5632_hs_jack_pins));
109	if (ret)
110		return ret;
111
112	if (gpio_is_valid(machine->gpio_hp_det)) {
113		tegra_alc5632_hp_jack_gpio.gpio = machine->gpio_hp_det;
114		snd_soc_jack_add_gpios(&tegra_alc5632_hs_jack,
115						1,
116						&tegra_alc5632_hp_jack_gpio);
117	}
118
119	snd_soc_dapm_force_enable_pin(&rtd->card->dapm, "MICBIAS1");
120
121	return 0;
122}
123
124SND_SOC_DAILINK_DEFS(pcm,
125	DAILINK_COMP_ARRAY(COMP_EMPTY()),
126	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "alc5632-hifi")),
127	DAILINK_COMP_ARRAY(COMP_EMPTY()));
128
129static struct snd_soc_dai_link tegra_alc5632_dai = {
130	.name = "ALC5632",
131	.stream_name = "ALC5632 PCM",
132	.init = tegra_alc5632_asoc_init,
133	.ops = &tegra_alc5632_asoc_ops,
134	.dai_fmt = SND_SOC_DAIFMT_I2S
135			   | SND_SOC_DAIFMT_NB_NF
136			   | SND_SOC_DAIFMT_CBS_CFS,
137	SND_SOC_DAILINK_REG(pcm),
138};
139
140static struct snd_soc_card snd_soc_tegra_alc5632 = {
141	.name = "tegra-alc5632",
142	.owner = THIS_MODULE,
143	.dai_link = &tegra_alc5632_dai,
144	.num_links = 1,
145	.controls = tegra_alc5632_controls,
146	.num_controls = ARRAY_SIZE(tegra_alc5632_controls),
147	.dapm_widgets = tegra_alc5632_dapm_widgets,
148	.num_dapm_widgets = ARRAY_SIZE(tegra_alc5632_dapm_widgets),
149	.fully_routed = true,
150};
151
152static int tegra_alc5632_probe(struct platform_device *pdev)
153{
154	struct device_node *np = pdev->dev.of_node;
155	struct snd_soc_card *card = &snd_soc_tegra_alc5632;
156	struct tegra_alc5632 *alc5632;
157	int ret;
158
159	alc5632 = devm_kzalloc(&pdev->dev,
160			sizeof(struct tegra_alc5632), GFP_KERNEL);
161	if (!alc5632)
162		return -ENOMEM;
163
164	card->dev = &pdev->dev;
165	snd_soc_card_set_drvdata(card, alc5632);
166
167	alc5632->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0);
168	if (alc5632->gpio_hp_det == -EPROBE_DEFER)
169		return -EPROBE_DEFER;
170
171	ret = snd_soc_of_parse_card_name(card, "nvidia,model");
172	if (ret)
173		goto err;
174
175	ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
176	if (ret)
177		goto err;
178
179	tegra_alc5632_dai.codecs->of_node = of_parse_phandle(
180			pdev->dev.of_node, "nvidia,audio-codec", 0);
181
182	if (!tegra_alc5632_dai.codecs->of_node) {
183		dev_err(&pdev->dev,
184			"Property 'nvidia,audio-codec' missing or invalid\n");
185		ret = -EINVAL;
186		goto err;
187	}
188
189	tegra_alc5632_dai.cpus->of_node = of_parse_phandle(np,
190			"nvidia,i2s-controller", 0);
191	if (!tegra_alc5632_dai.cpus->of_node) {
192		dev_err(&pdev->dev,
193			"Property 'nvidia,i2s-controller' missing or invalid\n");
194		ret = -EINVAL;
195		goto err_put_codec_of_node;
196	}
197
198	tegra_alc5632_dai.platforms->of_node = tegra_alc5632_dai.cpus->of_node;
199
200	ret = tegra_asoc_utils_init(&alc5632->util_data, &pdev->dev);
201	if (ret)
202		goto err_put_cpu_of_node;
203
204	ret = snd_soc_register_card(card);
205	if (ret) {
206		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
207			ret);
208		goto err_fini_utils;
209	}
210
211	return 0;
212
213err_fini_utils:
214	tegra_asoc_utils_fini(&alc5632->util_data);
215err_put_cpu_of_node:
216	of_node_put(tegra_alc5632_dai.cpus->of_node);
217	tegra_alc5632_dai.cpus->of_node = NULL;
218	tegra_alc5632_dai.platforms->of_node = NULL;
219err_put_codec_of_node:
220	of_node_put(tegra_alc5632_dai.codecs->of_node);
221	tegra_alc5632_dai.codecs->of_node = NULL;
222err:
223	return ret;
224}
225
226static int tegra_alc5632_remove(struct platform_device *pdev)
227{
228	struct snd_soc_card *card = platform_get_drvdata(pdev);
229	struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(card);
230
231	snd_soc_unregister_card(card);
232
233	tegra_asoc_utils_fini(&machine->util_data);
234
235	of_node_put(tegra_alc5632_dai.cpus->of_node);
236	tegra_alc5632_dai.cpus->of_node = NULL;
237	tegra_alc5632_dai.platforms->of_node = NULL;
238	of_node_put(tegra_alc5632_dai.codecs->of_node);
239	tegra_alc5632_dai.codecs->of_node = NULL;
240
241	return 0;
242}
243
244static const struct of_device_id tegra_alc5632_of_match[] = {
245	{ .compatible = "nvidia,tegra-audio-alc5632", },
246	{},
247};
248
249static struct platform_driver tegra_alc5632_driver = {
250	.driver = {
251		.name = DRV_NAME,
252		.pm = &snd_soc_pm_ops,
253		.of_match_table = tegra_alc5632_of_match,
254	},
255	.probe = tegra_alc5632_probe,
256	.remove = tegra_alc5632_remove,
257};
258module_platform_driver(tegra_alc5632_driver);
259
260MODULE_AUTHOR("Leon Romanovsky <leon@leon.nu>");
261MODULE_DESCRIPTION("Tegra+ALC5632 machine ASoC driver");
262MODULE_LICENSE("GPL");
263MODULE_ALIAS("platform:" DRV_NAME);
264MODULE_DEVICE_TABLE(of, tegra_alc5632_of_match);