sound/soc/tegra/tegra_alc5632.c

   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
  31 struct tegra_alc5632 {
  32         struct tegra_asoc_utils_data util_data;
  33         int gpio_hp_det;
  34 };
  35
  36 static 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
  65 static const struct snd_soc_ops tegra_alc5632_asoc_ops = {
  66         .hw_params = tegra_alc5632_asoc_hw_params,
  67 };
  68
  69 static struct snd_soc_jack tegra_alc5632_hs_jack;
  70
  71 static 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
  82 static 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
  88 static 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
  95 static const struct snd_kcontrol_new tegra_alc5632_controls[] = {
  96         SOC_DAPM_PIN_SWITCH("Int Spk"),
  97 };
  98
  99 static 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
 124 SND_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
 129 static 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
 140 static 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
 152 static 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
 213 err_fini_utils:
 214         tegra_asoc_utils_fini(&alc5632->util_data);
 215 err_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;
 219 err_put_codec_of_node:
 220         of_node_put(tegra_alc5632_dai.codecs->of_node);
 221         tegra_alc5632_dai.codecs->of_node = NULL;
 222 err:
 223         return ret;
 224 }
 225
 226 static 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
 244 static const struct of_device_id tegra_alc5632_of_match[] = {
 245         { .compatible = "nvidia,tegra-audio-alc5632", },
 246         {},
 247 };
 248
 249 static 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 };
 258 module_platform_driver(tegra_alc5632_driver);
 259
 260 MODULE_AUTHOR("Leon Romanovsky <leon@leon.nu>");
 261 MODULE_DESCRIPTION("Tegra+ALC5632 machine ASoC driver");
 262 MODULE_LICENSE("GPL");
 263 MODULE_ALIAS("platform:" DRV_NAME);
 264 MODULE_DEVICE_TABLE(of, tegra_alc5632_of_match);