sound/soc/tegra/tegra_max98090.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Tegra machine ASoC driver for boards using a MAX90809 CODEC.
   4  *
   5  * Copyright (c) 2013, NVIDIA CORPORATION.  All rights reserved.
   6  *
   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 "tegra_asoc_utils.h"
  28
  29 #define DRV_NAME "tegra-snd-max98090"
  30
  31 struct tegra_max98090 {
  32         struct tegra_asoc_utils_data util_data;
  33         int gpio_hp_det;
  34         int gpio_mic_det;
  35 };
  36
  37 static int tegra_max98090_asoc_hw_params(struct snd_pcm_substream *substream,
  38                                         struct snd_pcm_hw_params *params)
  39 {
  40         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  41         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  42         struct snd_soc_card *card = rtd->card;
  43         struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
  44         int srate, mclk;
  45         int err;
  46
  47         srate = params_rate(params);
  48         switch (srate) {
  49         case 8000:
  50         case 16000:
  51         case 24000:
  52         case 32000:
  53         case 48000:
  54         case 64000:
  55         case 96000:
  56                 mclk = 12288000;
  57                 break;
  58         case 11025:
  59         case 22050:
  60         case 44100:
  61         case 88200:
  62                 mclk = 11289600;
  63                 break;
  64         default:
  65                 mclk = 12000000;
  66                 break;
  67         }
  68
  69         err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
  70         if (err < 0) {
  71                 dev_err(card->dev, "Can't configure clocks\n");
  72                 return err;
  73         }
  74
  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;
  80         }
  81
  82         return 0;
  83 }
  84
  85 static const struct snd_soc_ops tegra_max98090_ops = {
  86         .hw_params = tegra_max98090_asoc_hw_params,
  87 };
  88
  89 static struct snd_soc_jack tegra_max98090_hp_jack;
  90
  91 static struct snd_soc_jack_pin tegra_max98090_hp_jack_pins[] = {
  92         {
  93                 .pin = "Headphones",
  94                 .mask = SND_JACK_HEADPHONE,
  95         },
  96 };
  97
  98 static struct snd_soc_jack_gpio tegra_max98090_hp_jack_gpio = {
  99         .name = "Headphone detection",
 100         .report = SND_JACK_HEADPHONE,
 101         .debounce_time = 150,
 102         .invert = 1,
 103 };
 104
 105 static struct snd_soc_jack tegra_max98090_mic_jack;
 106
 107 static struct snd_soc_jack_pin tegra_max98090_mic_jack_pins[] = {
 108         {
 109                 .pin = "Mic Jack",
 110                 .mask = SND_JACK_MICROPHONE,
 111         },
 112 };
 113
 114 static struct snd_soc_jack_gpio tegra_max98090_mic_jack_gpio = {
 115         .name = "Mic detection",
 116         .report = SND_JACK_MICROPHONE,
 117         .debounce_time = 150,
 118         .invert = 1,
 119 };
 120
 121 static const struct snd_soc_dapm_widget tegra_max98090_dapm_widgets[] = {
 122         SND_SOC_DAPM_HP("Headphones", NULL),
 123         SND_SOC_DAPM_SPK("Speakers", NULL),
 124         SND_SOC_DAPM_MIC("Mic Jack", NULL),
 125         SND_SOC_DAPM_MIC("Int Mic", NULL),
 126 };
 127
 128 static const struct snd_kcontrol_new tegra_max98090_controls[] = {
 129         SOC_DAPM_PIN_SWITCH("Headphones"),
 130         SOC_DAPM_PIN_SWITCH("Speakers"),
 131         SOC_DAPM_PIN_SWITCH("Mic Jack"),
 132         SOC_DAPM_PIN_SWITCH("Int Mic"),
 133 };
 134
 135 static int tegra_max98090_asoc_init(struct snd_soc_pcm_runtime *rtd)
 136 {
 137         struct tegra_max98090 *machine = snd_soc_card_get_drvdata(rtd->card);
 138
 139         if (gpio_is_valid(machine->gpio_hp_det)) {
 140                 snd_soc_card_jack_new(rtd->card, "Headphones",
 141                                       SND_JACK_HEADPHONE,
 142                                       &tegra_max98090_hp_jack,
 143                                       tegra_max98090_hp_jack_pins,
 144                                       ARRAY_SIZE(tegra_max98090_hp_jack_pins));
 145
 146                 tegra_max98090_hp_jack_gpio.gpio = machine->gpio_hp_det;
 147                 snd_soc_jack_add_gpios(&tegra_max98090_hp_jack,
 148                                         1,
 149                                         &tegra_max98090_hp_jack_gpio);
 150         }
 151
 152         if (gpio_is_valid(machine->gpio_mic_det)) {
 153                 snd_soc_card_jack_new(rtd->card, "Mic Jack",
 154                                       SND_JACK_MICROPHONE,
 155                                       &tegra_max98090_mic_jack,
 156                                       tegra_max98090_mic_jack_pins,
 157                                       ARRAY_SIZE(tegra_max98090_mic_jack_pins));
 158
 159                 tegra_max98090_mic_jack_gpio.gpio = machine->gpio_mic_det;
 160                 snd_soc_jack_add_gpios(&tegra_max98090_mic_jack,
 161                                        1,
 162                                        &tegra_max98090_mic_jack_gpio);
 163         }
 164
 165         return 0;
 166 }
 167
 168 SND_SOC_DAILINK_DEFS(pcm,
 169         DAILINK_COMP_ARRAY(COMP_EMPTY()),
 170         DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "HiFi")),
 171         DAILINK_COMP_ARRAY(COMP_EMPTY()));
 172
 173 static struct snd_soc_dai_link tegra_max98090_dai = {
 174         .name = "max98090",
 175         .stream_name = "max98090 PCM",
 176         .init = tegra_max98090_asoc_init,
 177         .ops = &tegra_max98090_ops,
 178         .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 179                         SND_SOC_DAIFMT_CBS_CFS,
 180         SND_SOC_DAILINK_REG(pcm),
 181 };
 182
 183 static struct snd_soc_card snd_soc_tegra_max98090 = {
 184         .name = "tegra-max98090",
 185         .owner = THIS_MODULE,
 186         .dai_link = &tegra_max98090_dai,
 187         .num_links = 1,
 188         .controls = tegra_max98090_controls,
 189         .num_controls = ARRAY_SIZE(tegra_max98090_controls),
 190         .dapm_widgets = tegra_max98090_dapm_widgets,
 191         .num_dapm_widgets = ARRAY_SIZE(tegra_max98090_dapm_widgets),
 192         .fully_routed = true,
 193 };
 194
 195 static int tegra_max98090_probe(struct platform_device *pdev)
 196 {
 197         struct device_node *np = pdev->dev.of_node;
 198         struct snd_soc_card *card = &snd_soc_tegra_max98090;
 199         struct tegra_max98090 *machine;
 200         int ret;
 201
 202         machine = devm_kzalloc(&pdev->dev,
 203                         sizeof(struct tegra_max98090), GFP_KERNEL);
 204         if (!machine)
 205                 return -ENOMEM;
 206
 207         card->dev = &pdev->dev;
 208         snd_soc_card_set_drvdata(card, machine);
 209
 210         machine->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0);
 211         if (machine->gpio_hp_det == -EPROBE_DEFER)
 212                 return -EPROBE_DEFER;
 213
 214         machine->gpio_mic_det =
 215                         of_get_named_gpio(np, "nvidia,mic-det-gpios", 0);
 216         if (machine->gpio_mic_det == -EPROBE_DEFER)
 217                 return -EPROBE_DEFER;
 218
 219         ret = snd_soc_of_parse_card_name(card, "nvidia,model");
 220         if (ret)
 221                 goto err;
 222
 223         ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
 224         if (ret)
 225                 goto err;
 226
 227         tegra_max98090_dai.codecs->of_node = of_parse_phandle(np,
 228                         "nvidia,audio-codec", 0);
 229         if (!tegra_max98090_dai.codecs->of_node) {
 230                 dev_err(&pdev->dev,
 231                         "Property 'nvidia,audio-codec' missing or invalid\n");
 232                 ret = -EINVAL;
 233                 goto err;
 234         }
 235
 236         tegra_max98090_dai.cpus->of_node = of_parse_phandle(np,
 237                         "nvidia,i2s-controller", 0);
 238         if (!tegra_max98090_dai.cpus->of_node) {
 239                 dev_err(&pdev->dev,
 240                         "Property 'nvidia,i2s-controller' missing or invalid\n");
 241                 ret = -EINVAL;
 242                 goto err;
 243         }
 244
 245         tegra_max98090_dai.platforms->of_node = tegra_max98090_dai.cpus->of_node;
 246
 247         ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev);
 248         if (ret)
 249                 goto err;
 250
 251         ret = snd_soc_register_card(card);
 252         if (ret) {
 253                 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
 254                         ret);
 255                 goto err_fini_utils;
 256         }
 257
 258         return 0;
 259
 260 err_fini_utils:
 261         tegra_asoc_utils_fini(&machine->util_data);
 262 err:
 263         return ret;
 264 }
 265
 266 static int tegra_max98090_remove(struct platform_device *pdev)
 267 {
 268         struct snd_soc_card *card = platform_get_drvdata(pdev);
 269         struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
 270
 271         snd_soc_unregister_card(card);
 272
 273         tegra_asoc_utils_fini(&machine->util_data);
 274
 275         return 0;
 276 }
 277
 278 static const struct of_device_id tegra_max98090_of_match[] = {
 279         { .compatible = "nvidia,tegra-audio-max98090", },
 280         {},
 281 };
 282
 283 static struct platform_driver tegra_max98090_driver = {
 284         .driver = {
 285                 .name = DRV_NAME,
 286                 .pm = &snd_soc_pm_ops,
 287                 .of_match_table = tegra_max98090_of_match,
 288         },
 289         .probe = tegra_max98090_probe,
 290         .remove = tegra_max98090_remove,
 291 };
 292 module_platform_driver(tegra_max98090_driver);
 293
 294 MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
 295 MODULE_DESCRIPTION("Tegra max98090 machine ASoC driver");
 296 MODULE_LICENSE("GPL v2");
 297 MODULE_ALIAS("platform:" DRV_NAME);
 298 MODULE_DEVICE_TABLE(of, tegra_max98090_of_match);