sound/soc/mediatek/mt8173/mt8173-max98090.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * mt8173-max98090.c  --  MT8173 MAX98090 ALSA SoC machine driver
   4  *
   5  * Copyright (c) 2015 MediaTek Inc.
   6  * Author: Koro Chen <koro.chen@mediatek.com>
   7  */
   8
   9 #include <linux/module.h>
  10 #include <sound/soc.h>
  11 #include <sound/jack.h>
  12 #include <linux/gpio.h>
  13 #include "../../codecs/max98090.h"
  14
  15 static struct snd_soc_jack mt8173_max98090_jack;
  16
  17 static struct snd_soc_jack_pin mt8173_max98090_jack_pins[] = {
  18         {
  19                 .pin    = "Headphone",
  20                 .mask   = SND_JACK_HEADPHONE,
  21         },
  22         {
  23                 .pin    = "Headset Mic",
  24                 .mask   = SND_JACK_MICROPHONE,
  25         },
  26 };
  27
  28 static const struct snd_soc_dapm_widget mt8173_max98090_widgets[] = {
  29         SND_SOC_DAPM_SPK("Speaker", NULL),
  30         SND_SOC_DAPM_MIC("Int Mic", NULL),
  31         SND_SOC_DAPM_HP("Headphone", NULL),
  32         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  33 };
  34
  35 static const struct snd_soc_dapm_route mt8173_max98090_routes[] = {
  36         {"Speaker", NULL, "SPKL"},
  37         {"Speaker", NULL, "SPKR"},
  38         {"DMICL", NULL, "Int Mic"},
  39         {"Headphone", NULL, "HPL"},
  40         {"Headphone", NULL, "HPR"},
  41         {"Headset Mic", NULL, "MICBIAS"},
  42         {"IN34", NULL, "Headset Mic"},
  43 };
  44
  45 static const struct snd_kcontrol_new mt8173_max98090_controls[] = {
  46         SOC_DAPM_PIN_SWITCH("Speaker"),
  47         SOC_DAPM_PIN_SWITCH("Int Mic"),
  48         SOC_DAPM_PIN_SWITCH("Headphone"),
  49         SOC_DAPM_PIN_SWITCH("Headset Mic"),
  50 };
  51
  52 static int mt8173_max98090_hw_params(struct snd_pcm_substream *substream,
  53                                      struct snd_pcm_hw_params *params)
  54 {
  55         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  56         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  57
  58         return snd_soc_dai_set_sysclk(codec_dai, 0, params_rate(params) * 256,
  59                                       SND_SOC_CLOCK_IN);
  60 }
  61
  62 static const struct snd_soc_ops mt8173_max98090_ops = {
  63         .hw_params = mt8173_max98090_hw_params,
  64 };
  65
  66 static int mt8173_max98090_init(struct snd_soc_pcm_runtime *runtime)
  67 {
  68         int ret;
  69         struct snd_soc_card *card = runtime->card;
  70         struct snd_soc_component *component = runtime->codec_dai->component;
  71
  72         /* enable jack detection */
  73         ret = snd_soc_card_jack_new(card, "Headphone", SND_JACK_HEADPHONE,
  74                                     &mt8173_max98090_jack,
  75                                     mt8173_max98090_jack_pins,
  76                                     ARRAY_SIZE(mt8173_max98090_jack_pins));
  77         if (ret) {
  78                 dev_err(card->dev, "Can't create a new Jack %d\n", ret);
  79                 return ret;
  80         }
  81
  82         return max98090_mic_detect(component, &mt8173_max98090_jack);
  83 }
  84
  85 /* Digital audio interface glue - connects codec <---> CPU */
  86 static struct snd_soc_dai_link mt8173_max98090_dais[] = {
  87         /* Front End DAI links */
  88         {
  89                 .name = "MAX98090 Playback",
  90                 .stream_name = "MAX98090 Playback",
  91                 .cpu_dai_name = "DL1",
  92                 .codec_name = "snd-soc-dummy",
  93                 .codec_dai_name = "snd-soc-dummy-dai",
  94                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
  95                 .dynamic = 1,
  96                 .dpcm_playback = 1,
  97         },
  98         {
  99                 .name = "MAX98090 Capture",
 100                 .stream_name = "MAX98090 Capture",
 101                 .cpu_dai_name = "VUL",
 102                 .codec_name = "snd-soc-dummy",
 103                 .codec_dai_name = "snd-soc-dummy-dai",
 104                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 105                 .dynamic = 1,
 106                 .dpcm_capture = 1,
 107         },
 108         /* Back End DAI links */
 109         {
 110                 .name = "Codec",
 111                 .cpu_dai_name = "I2S",
 112                 .no_pcm = 1,
 113                 .codec_dai_name = "HiFi",
 114                 .init = mt8173_max98090_init,
 115                 .ops = &mt8173_max98090_ops,
 116                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 117                            SND_SOC_DAIFMT_CBS_CFS,
 118                 .dpcm_playback = 1,
 119                 .dpcm_capture = 1,
 120         },
 121 };
 122
 123 static struct snd_soc_card mt8173_max98090_card = {
 124         .name = "mt8173-max98090",
 125         .owner = THIS_MODULE,
 126         .dai_link = mt8173_max98090_dais,
 127         .num_links = ARRAY_SIZE(mt8173_max98090_dais),
 128         .controls = mt8173_max98090_controls,
 129         .num_controls = ARRAY_SIZE(mt8173_max98090_controls),
 130         .dapm_widgets = mt8173_max98090_widgets,
 131         .num_dapm_widgets = ARRAY_SIZE(mt8173_max98090_widgets),
 132         .dapm_routes = mt8173_max98090_routes,
 133         .num_dapm_routes = ARRAY_SIZE(mt8173_max98090_routes),
 134 };
 135
 136 static int mt8173_max98090_dev_probe(struct platform_device *pdev)
 137 {
 138         struct snd_soc_card *card = &mt8173_max98090_card;
 139         struct device_node *codec_node, *platform_node;
 140         int ret, i;
 141
 142         platform_node = of_parse_phandle(pdev->dev.of_node,
 143                                          "mediatek,platform", 0);
 144         if (!platform_node) {
 145                 dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
 146                 return -EINVAL;
 147         }
 148         for (i = 0; i < card->num_links; i++) {
 149                 if (mt8173_max98090_dais[i].platform_name)
 150                         continue;
 151                 mt8173_max98090_dais[i].platform_of_node = platform_node;
 152         }
 153
 154         codec_node = of_parse_phandle(pdev->dev.of_node,
 155                                       "mediatek,audio-codec", 0);
 156         if (!codec_node) {
 157                 dev_err(&pdev->dev,
 158                         "Property 'audio-codec' missing or invalid\n");
 159                 ret = -EINVAL;
 160                 goto put_platform_node;
 161         }
 162         for (i = 0; i < card->num_links; i++) {
 163                 if (mt8173_max98090_dais[i].codec_name)
 164                         continue;
 165                 mt8173_max98090_dais[i].codec_of_node = codec_node;
 166         }
 167         card->dev = &pdev->dev;
 168
 169         ret = devm_snd_soc_register_card(&pdev->dev, card);
 170         if (ret)
 171                 dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
 172                         __func__, ret);
 173
 174         of_node_put(codec_node);
 175
 176 put_platform_node:
 177         of_node_put(platform_node);
 178         return ret;
 179 }
 180
 181 static const struct of_device_id mt8173_max98090_dt_match[] = {
 182         { .compatible = "mediatek,mt8173-max98090", },
 183         { }
 184 };
 185 MODULE_DEVICE_TABLE(of, mt8173_max98090_dt_match);
 186
 187 static struct platform_driver mt8173_max98090_driver = {
 188         .driver = {
 189                    .name = "mt8173-max98090",
 190                    .of_match_table = mt8173_max98090_dt_match,
 191 #ifdef CONFIG_PM
 192                    .pm = &snd_soc_pm_ops,
 193 #endif
 194         },
 195         .probe = mt8173_max98090_dev_probe,
 196 };
 197
 198 module_platform_driver(mt8173_max98090_driver);
 199
 200 /* Module information */
 201 MODULE_DESCRIPTION("MT8173 MAX98090 ALSA SoC machine driver");
 202 MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
 203 MODULE_LICENSE("GPL v2");
 204 MODULE_ALIAS("platform:mt8173-max98090");
 205