sound/soc/mediatek/mt8173/mt8173-rt5650.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * mt8173-rt5650.c  --  MT8173 machine driver with RT5650 codecs
   4  *
   5  * Copyright (c) 2016 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 "../../codecs/rt5645.h"
  13
  14 #define MCLK_FOR_CODECS         12288000
  15
  16 enum mt8173_rt5650_mclk {
  17         MT8173_RT5650_MCLK_EXTERNAL = 0,
  18         MT8173_RT5650_MCLK_INTERNAL,
  19 };
  20
  21 struct mt8173_rt5650_platform_data {
  22         enum mt8173_rt5650_mclk pll_from;
  23         /* 0 = external oscillator; 1 = internal source from mt8173 */
  24 };
  25
  26 static struct mt8173_rt5650_platform_data mt8173_rt5650_priv = {
  27         .pll_from = MT8173_RT5650_MCLK_EXTERNAL,
  28 };
  29
  30 static const struct snd_soc_dapm_widget mt8173_rt5650_widgets[] = {
  31         SND_SOC_DAPM_SPK("Ext Spk", NULL),
  32         SND_SOC_DAPM_MIC("Int Mic", NULL),
  33         SND_SOC_DAPM_HP("Headphone", NULL),
  34         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  35 };
  36
  37 static const struct snd_soc_dapm_route mt8173_rt5650_routes[] = {
  38         {"Ext Spk", NULL, "SPOL"},
  39         {"Ext Spk", NULL, "SPOR"},
  40         {"DMIC L1", NULL, "Int Mic"},
  41         {"DMIC R1", NULL, "Int Mic"},
  42         {"Headphone", NULL, "HPOL"},
  43         {"Headphone", NULL, "HPOR"},
  44         {"IN1P", NULL, "Headset Mic"},
  45         {"IN1N", NULL, "Headset Mic"},
  46 };
  47
  48 static const struct snd_kcontrol_new mt8173_rt5650_controls[] = {
  49         SOC_DAPM_PIN_SWITCH("Ext Spk"),
  50         SOC_DAPM_PIN_SWITCH("Int Mic"),
  51         SOC_DAPM_PIN_SWITCH("Headphone"),
  52         SOC_DAPM_PIN_SWITCH("Headset Mic"),
  53 };
  54
  55 static struct snd_soc_jack_pin mt8173_rt5650_jack_pins[] = {
  56         {
  57                 .pin    = "Headphone",
  58                 .mask   = SND_JACK_HEADPHONE,
  59         },
  60         {
  61                 .pin    = "Headset Mic",
  62                 .mask   = SND_JACK_MICROPHONE,
  63         },
  64 };
  65
  66 static int mt8173_rt5650_hw_params(struct snd_pcm_substream *substream,
  67                                    struct snd_pcm_hw_params *params)
  68 {
  69         struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
  70         unsigned int mclk_clock;
  71         struct snd_soc_dai *codec_dai;
  72         int i, ret;
  73
  74         switch (mt8173_rt5650_priv.pll_from) {
  75         case MT8173_RT5650_MCLK_EXTERNAL:
  76                 /* mclk = 12.288M */
  77                 mclk_clock = MCLK_FOR_CODECS;
  78                 break;
  79         case MT8173_RT5650_MCLK_INTERNAL:
  80                 /* mclk = sampling rate*256 */
  81                 mclk_clock = params_rate(params) * 256;
  82                 break;
  83         default:
  84                 /* mclk = 12.288M */
  85                 mclk_clock = MCLK_FOR_CODECS;
  86                 break;
  87         }
  88
  89         for_each_rtd_codec_dais(rtd, i, codec_dai) {
  90                 /* pll from mclk */
  91                 ret = snd_soc_dai_set_pll(codec_dai, 0, 0, mclk_clock,
  92                                           params_rate(params) * 512);
  93                 if (ret)
  94                         return ret;
  95
  96                 /* sysclk from pll */
  97                 ret = snd_soc_dai_set_sysclk(codec_dai, 1,
  98                                              params_rate(params) * 512,
  99                                              SND_SOC_CLOCK_IN);
 100                 if (ret)
 101                         return ret;
 102         }
 103         return 0;
 104 }
 105
 106 static const struct snd_soc_ops mt8173_rt5650_ops = {
 107         .hw_params = mt8173_rt5650_hw_params,
 108 };
 109
 110 static struct snd_soc_jack mt8173_rt5650_jack, mt8173_rt5650_hdmi_jack;
 111
 112 static int mt8173_rt5650_init(struct snd_soc_pcm_runtime *runtime)
 113 {
 114         struct snd_soc_card *card = runtime->card;
 115         struct snd_soc_component *component = snd_soc_rtd_to_codec(runtime, 0)->component;
 116         const char *codec_capture_dai = snd_soc_rtd_to_codec(runtime, 1)->name;
 117         int ret;
 118
 119         rt5645_sel_asrc_clk_src(component,
 120                                 RT5645_DA_STEREO_FILTER,
 121                                 RT5645_CLK_SEL_I2S1_ASRC);
 122
 123         if (!strcmp(codec_capture_dai, "rt5645-aif1")) {
 124                 rt5645_sel_asrc_clk_src(component,
 125                                         RT5645_AD_STEREO_FILTER,
 126                                         RT5645_CLK_SEL_I2S1_ASRC);
 127         } else if (!strcmp(codec_capture_dai, "rt5645-aif2")) {
 128                 rt5645_sel_asrc_clk_src(component,
 129                                         RT5645_AD_STEREO_FILTER,
 130                                         RT5645_CLK_SEL_I2S2_ASRC);
 131         } else {
 132                 dev_warn(card->dev,
 133                          "Only one dai codec found in DTS, enabled rt5645 AD filter\n");
 134                 rt5645_sel_asrc_clk_src(component,
 135                                         RT5645_AD_STEREO_FILTER,
 136                                         RT5645_CLK_SEL_I2S1_ASRC);
 137         }
 138
 139         /* enable jack detection */
 140         ret = snd_soc_card_jack_new_pins(card, "Headset Jack",
 141                                          SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
 142                                          SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 143                                          SND_JACK_BTN_2 | SND_JACK_BTN_3,
 144                                          &mt8173_rt5650_jack,
 145                                          mt8173_rt5650_jack_pins,
 146                                          ARRAY_SIZE(mt8173_rt5650_jack_pins));
 147         if (ret) {
 148                 dev_err(card->dev, "Can't new Headset Jack %d\n", ret);
 149                 return ret;
 150         }
 151
 152         return rt5645_set_jack_detect(component,
 153                                       &mt8173_rt5650_jack,
 154                                       &mt8173_rt5650_jack,
 155                                       &mt8173_rt5650_jack);
 156 }
 157
 158 static int mt8173_rt5650_hdmi_init(struct snd_soc_pcm_runtime *rtd)
 159 {
 160         int ret;
 161
 162         ret = snd_soc_card_jack_new(rtd->card, "HDMI Jack", SND_JACK_LINEOUT,
 163                                     &mt8173_rt5650_hdmi_jack);
 164         if (ret)
 165                 return ret;
 166
 167         return snd_soc_component_set_jack(snd_soc_rtd_to_codec(rtd, 0)->component,
 168                                           &mt8173_rt5650_hdmi_jack, NULL);
 169 }
 170
 171 enum {
 172         DAI_LINK_PLAYBACK,
 173         DAI_LINK_CAPTURE,
 174         DAI_LINK_HDMI,
 175         DAI_LINK_CODEC_I2S,
 176         DAI_LINK_HDMI_I2S,
 177 };
 178
 179 SND_SOC_DAILINK_DEFS(playback,
 180         DAILINK_COMP_ARRAY(COMP_CPU("DL1")),
 181         DAILINK_COMP_ARRAY(COMP_DUMMY()),
 182         DAILINK_COMP_ARRAY(COMP_EMPTY()));
 183
 184 SND_SOC_DAILINK_DEFS(capture,
 185         DAILINK_COMP_ARRAY(COMP_CPU("VUL")),
 186         DAILINK_COMP_ARRAY(COMP_DUMMY()),
 187         DAILINK_COMP_ARRAY(COMP_EMPTY()));
 188
 189 SND_SOC_DAILINK_DEFS(hdmi_pcm,
 190         DAILINK_COMP_ARRAY(COMP_CPU("HDMI")),
 191         DAILINK_COMP_ARRAY(COMP_DUMMY()),
 192         DAILINK_COMP_ARRAY(COMP_EMPTY()));
 193
 194 SND_SOC_DAILINK_DEFS(codec,
 195         DAILINK_COMP_ARRAY(COMP_CPU("I2S")),
 196         DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "rt5645-aif1"), /* Playback */
 197                            COMP_CODEC(NULL, "rt5645-aif1")),/* Capture */
 198         DAILINK_COMP_ARRAY(COMP_EMPTY()));
 199
 200 SND_SOC_DAILINK_DEFS(hdmi_be,
 201         DAILINK_COMP_ARRAY(COMP_CPU("HDMIO")),
 202         DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "i2s-hifi")),
 203         DAILINK_COMP_ARRAY(COMP_EMPTY()));
 204
 205 /* Digital audio interface glue - connects codec <---> CPU */
 206 static struct snd_soc_dai_link mt8173_rt5650_dais[] = {
 207         /* Front End DAI links */
 208         [DAI_LINK_PLAYBACK] = {
 209                 .name = "rt5650 Playback",
 210                 .stream_name = "rt5650 Playback",
 211                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 212                 .dynamic = 1,
 213                 .dpcm_playback = 1,
 214                 SND_SOC_DAILINK_REG(playback),
 215         },
 216         [DAI_LINK_CAPTURE] = {
 217                 .name = "rt5650 Capture",
 218                 .stream_name = "rt5650 Capture",
 219                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 220                 .dynamic = 1,
 221                 .dpcm_capture = 1,
 222                 SND_SOC_DAILINK_REG(capture),
 223         },
 224         [DAI_LINK_HDMI] = {
 225                 .name = "HDMI",
 226                 .stream_name = "HDMI PCM",
 227                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 228                 .dynamic = 1,
 229                 .dpcm_playback = 1,
 230                 SND_SOC_DAILINK_REG(hdmi_pcm),
 231         },
 232         /* Back End DAI links */
 233         [DAI_LINK_CODEC_I2S] = {
 234                 .name = "Codec",
 235                 .no_pcm = 1,
 236                 .init = mt8173_rt5650_init,
 237                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 238                            SND_SOC_DAIFMT_CBS_CFS,
 239                 .ops = &mt8173_rt5650_ops,
 240                 .ignore_pmdown_time = 1,
 241                 .dpcm_playback = 1,
 242                 .dpcm_capture = 1,
 243                 SND_SOC_DAILINK_REG(codec),
 244         },
 245         [DAI_LINK_HDMI_I2S] = {
 246                 .name = "HDMI BE",
 247                 .no_pcm = 1,
 248                 .dpcm_playback = 1,
 249                 .init = mt8173_rt5650_hdmi_init,
 250                 SND_SOC_DAILINK_REG(hdmi_be),
 251         },
 252 };
 253
 254 static struct snd_soc_card mt8173_rt5650_card = {
 255         .name = "mtk-rt5650",
 256         .owner = THIS_MODULE,
 257         .dai_link = mt8173_rt5650_dais,
 258         .num_links = ARRAY_SIZE(mt8173_rt5650_dais),
 259         .controls = mt8173_rt5650_controls,
 260         .num_controls = ARRAY_SIZE(mt8173_rt5650_controls),
 261         .dapm_widgets = mt8173_rt5650_widgets,
 262         .num_dapm_widgets = ARRAY_SIZE(mt8173_rt5650_widgets),
 263         .dapm_routes = mt8173_rt5650_routes,
 264         .num_dapm_routes = ARRAY_SIZE(mt8173_rt5650_routes),
 265 };
 266
 267 static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
 268 {
 269         struct snd_soc_card *card = &mt8173_rt5650_card;
 270         struct device_node *platform_node;
 271         struct device_node *np;
 272         const char *codec_capture_dai;
 273         struct snd_soc_dai_link *dai_link;
 274         int i, ret;
 275
 276         platform_node = of_parse_phandle(pdev->dev.of_node,
 277                                          "mediatek,platform", 0);
 278         if (!platform_node) {
 279                 dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
 280                 return -EINVAL;
 281         }
 282
 283         for_each_card_prelinks(card, i, dai_link) {
 284                 if (dai_link->platforms->name)
 285                         continue;
 286                 dai_link->platforms->of_node = platform_node;
 287         }
 288
 289         mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node =
 290                 of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 0);
 291         if (!mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node) {
 292                 dev_err(&pdev->dev,
 293                         "Property 'audio-codec' missing or invalid\n");
 294                 ret = -EINVAL;
 295                 goto put_platform_node;
 296         }
 297         mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[1].of_node =
 298                 mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node;
 299
 300         np = of_get_child_by_name(pdev->dev.of_node, "codec-capture");
 301         if (np) {
 302                 ret = snd_soc_of_get_dai_name(np, &codec_capture_dai, 0);
 303                 of_node_put(np);
 304                 if (ret < 0) {
 305                         dev_err(&pdev->dev,
 306                                 "%s codec_capture_dai name fail %d\n",
 307                                 __func__, ret);
 308                         goto put_platform_node;
 309                 }
 310                 mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[1].dai_name =
 311                         codec_capture_dai;
 312         }
 313
 314         if (device_property_present(&pdev->dev, "mediatek,mclk")) {
 315                 ret = device_property_read_u32(&pdev->dev,
 316                                                "mediatek,mclk",
 317                                                &mt8173_rt5650_priv.pll_from);
 318                 if (ret) {
 319                         dev_err(&pdev->dev,
 320                                 "%s snd_soc_register_card fail %d\n",
 321                                 __func__, ret);
 322                 }
 323         }
 324
 325         mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codecs->of_node =
 326                 of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 1);
 327         if (!mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codecs->of_node) {
 328                 dev_err(&pdev->dev,
 329                         "Property 'audio-codec' missing or invalid\n");
 330                 ret = -EINVAL;
 331                 goto put_platform_node;
 332         }
 333         card->dev = &pdev->dev;
 334
 335         ret = devm_snd_soc_register_card(&pdev->dev, card);
 336
 337 put_platform_node:
 338         of_node_put(platform_node);
 339         return ret;
 340 }
 341
 342 static const struct of_device_id mt8173_rt5650_dt_match[] = {
 343         { .compatible = "mediatek,mt8173-rt5650", },
 344         { }
 345 };
 346 MODULE_DEVICE_TABLE(of, mt8173_rt5650_dt_match);
 347
 348 static struct platform_driver mt8173_rt5650_driver = {
 349         .driver = {
 350                    .name = "mtk-rt5650",
 351                    .of_match_table = mt8173_rt5650_dt_match,
 352                    .pm = &snd_soc_pm_ops,
 353         },
 354         .probe = mt8173_rt5650_dev_probe,
 355 };
 356
 357 module_platform_driver(mt8173_rt5650_driver);
 358
 359 /* Module information */
 360 MODULE_DESCRIPTION("MT8173 RT5650 SoC machine driver");
 361 MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
 362 MODULE_LICENSE("GPL v2");
 363 MODULE_ALIAS("platform:mtk-rt5650");
 364