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