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 = substream->private_data;
  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_dai(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;
 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 = runtime->codec_dais[0]->component;
 107         const char *codec_capture_dai = runtime->codec_dais[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 enum {
 148         DAI_LINK_PLAYBACK,
 149         DAI_LINK_CAPTURE,
 150         DAI_LINK_HDMI,
 151         DAI_LINK_CODEC_I2S,
 152         DAI_LINK_HDMI_I2S,
 153 };
 154
 155 SND_SOC_DAILINK_DEFS(playback,
 156         DAILINK_COMP_ARRAY(COMP_CPU("DL1")),
 157         DAILINK_COMP_ARRAY(COMP_DUMMY()),
 158         DAILINK_COMP_ARRAY(COMP_EMPTY()));
 159
 160 SND_SOC_DAILINK_DEFS(capture,
 161         DAILINK_COMP_ARRAY(COMP_CPU("VUL")),
 162         DAILINK_COMP_ARRAY(COMP_DUMMY()),
 163         DAILINK_COMP_ARRAY(COMP_EMPTY()));
 164
 165 SND_SOC_DAILINK_DEFS(hdmi_pcm,
 166         DAILINK_COMP_ARRAY(COMP_CPU("HDMI")),
 167         DAILINK_COMP_ARRAY(COMP_DUMMY()),
 168         DAILINK_COMP_ARRAY(COMP_EMPTY()));
 169
 170 SND_SOC_DAILINK_DEFS(codec,
 171         DAILINK_COMP_ARRAY(COMP_CPU("I2S")),
 172         DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "rt5645-aif1"), /* Playback */
 173                            COMP_CODEC(NULL, "rt5645-aif1")),/* Capture */
 174         DAILINK_COMP_ARRAY(COMP_EMPTY()));
 175
 176 SND_SOC_DAILINK_DEFS(hdmi_be,
 177         DAILINK_COMP_ARRAY(COMP_CPU("HDMIO")),
 178         DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "i2s-hifi")),
 179         DAILINK_COMP_ARRAY(COMP_EMPTY()));
 180
 181 /* Digital audio interface glue - connects codec <---> CPU */
 182 static struct snd_soc_dai_link mt8173_rt5650_dais[] = {
 183         /* Front End DAI links */
 184         [DAI_LINK_PLAYBACK] = {
 185                 .name = "rt5650 Playback",
 186                 .stream_name = "rt5650 Playback",
 187                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 188                 .dynamic = 1,
 189                 .dpcm_playback = 1,
 190                 SND_SOC_DAILINK_REG(playback),
 191         },
 192         [DAI_LINK_CAPTURE] = {
 193                 .name = "rt5650 Capture",
 194                 .stream_name = "rt5650 Capture",
 195                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 196                 .dynamic = 1,
 197                 .dpcm_capture = 1,
 198                 SND_SOC_DAILINK_REG(capture),
 199         },
 200         [DAI_LINK_HDMI] = {
 201                 .name = "HDMI",
 202                 .stream_name = "HDMI PCM",
 203                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 204                 .dynamic = 1,
 205                 .dpcm_playback = 1,
 206                 SND_SOC_DAILINK_REG(hdmi_pcm),
 207         },
 208         /* Back End DAI links */
 209         [DAI_LINK_CODEC_I2S] = {
 210                 .name = "Codec",
 211                 .no_pcm = 1,
 212                 .init = mt8173_rt5650_init,
 213                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 214                            SND_SOC_DAIFMT_CBS_CFS,
 215                 .ops = &mt8173_rt5650_ops,
 216                 .ignore_pmdown_time = 1,
 217                 .dpcm_playback = 1,
 218                 .dpcm_capture = 1,
 219                 SND_SOC_DAILINK_REG(codec),
 220         },
 221         [DAI_LINK_HDMI_I2S] = {
 222                 .name = "HDMI BE",
 223                 .no_pcm = 1,
 224                 .dpcm_playback = 1,
 225                 SND_SOC_DAILINK_REG(hdmi_be),
 226         },
 227 };
 228
 229 static struct snd_soc_card mt8173_rt5650_card = {
 230         .name = "mtk-rt5650",
 231         .owner = THIS_MODULE,
 232         .dai_link = mt8173_rt5650_dais,
 233         .num_links = ARRAY_SIZE(mt8173_rt5650_dais),
 234         .controls = mt8173_rt5650_controls,
 235         .num_controls = ARRAY_SIZE(mt8173_rt5650_controls),
 236         .dapm_widgets = mt8173_rt5650_widgets,
 237         .num_dapm_widgets = ARRAY_SIZE(mt8173_rt5650_widgets),
 238         .dapm_routes = mt8173_rt5650_routes,
 239         .num_dapm_routes = ARRAY_SIZE(mt8173_rt5650_routes),
 240 };
 241
 242 static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
 243 {
 244         struct snd_soc_card *card = &mt8173_rt5650_card;
 245         struct device_node *platform_node;
 246         struct device_node *np;
 247         const char *codec_capture_dai;
 248         struct snd_soc_dai_link *dai_link;
 249         int i, ret;
 250
 251         platform_node = of_parse_phandle(pdev->dev.of_node,
 252                                          "mediatek,platform", 0);
 253         if (!platform_node) {
 254                 dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
 255                 return -EINVAL;
 256         }
 257
 258         for_each_card_prelinks(card, i, dai_link) {
 259                 if (dai_link->platforms->name)
 260                         continue;
 261                 dai_link->platforms->of_node = platform_node;
 262         }
 263
 264         mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node =
 265                 of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 0);
 266         if (!mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node) {
 267                 dev_err(&pdev->dev,
 268                         "Property 'audio-codec' missing or invalid\n");
 269                 return -EINVAL;
 270         }
 271         mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[1].of_node =
 272                 mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node;
 273
 274         np = of_get_child_by_name(pdev->dev.of_node, "codec-capture");
 275         if (np) {
 276                 ret = snd_soc_of_get_dai_name(np, &codec_capture_dai);
 277                 of_node_put(np);
 278                 if (ret < 0) {
 279                         dev_err(&pdev->dev,
 280                                 "%s codec_capture_dai name fail %d\n",
 281                                 __func__, ret);
 282                         return ret;
 283                 }
 284                 mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[1].dai_name =
 285                         codec_capture_dai;
 286         }
 287
 288         if (device_property_present(&pdev->dev, "mediatek,mclk")) {
 289                 ret = device_property_read_u32(&pdev->dev,
 290                                                "mediatek,mclk",
 291                                                &mt8173_rt5650_priv.pll_from);
 292                 if (ret) {
 293                         dev_err(&pdev->dev,
 294                                 "%s snd_soc_register_card fail %d\n",
 295                                 __func__, ret);
 296                 }
 297         }
 298
 299         mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codecs->of_node =
 300                 of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 1);
 301         if (!mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codecs->of_node) {
 302                 dev_err(&pdev->dev,
 303                         "Property 'audio-codec' missing or invalid\n");
 304                 return -EINVAL;
 305         }
 306         card->dev = &pdev->dev;
 307
 308         ret = devm_snd_soc_register_card(&pdev->dev, card);
 309         if (ret)
 310                 dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
 311                         __func__, ret);
 312         return ret;
 313 }
 314
 315 static const struct of_device_id mt8173_rt5650_dt_match[] = {
 316         { .compatible = "mediatek,mt8173-rt5650", },
 317         { }
 318 };
 319 MODULE_DEVICE_TABLE(of, mt8173_rt5650_dt_match);
 320
 321 static struct platform_driver mt8173_rt5650_driver = {
 322         .driver = {
 323                    .name = "mtk-rt5650",
 324                    .of_match_table = mt8173_rt5650_dt_match,
 325 #ifdef CONFIG_PM
 326                    .pm = &snd_soc_pm_ops,
 327 #endif
 328         },
 329         .probe = mt8173_rt5650_dev_probe,
 330 };
 331
 332 module_platform_driver(mt8173_rt5650_driver);
 333
 334 /* Module information */
 335 MODULE_DESCRIPTION("MT8173 RT5650 SoC machine driver");
 336 MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
 337 MODULE_LICENSE("GPL v2");
 338 MODULE_ALIAS("platform:mtk-rt5650");
 339