linux/sound/soc/mediatek/mt8173/mt8173-rt5650.c
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   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
  18enum mt8173_rt5650_mclk {
  19        MT8173_RT5650_MCLK_EXTERNAL = 0,
  20        MT8173_RT5650_MCLK_INTERNAL,
  21};
  22
  23struct mt8173_rt5650_platform_data {
  24        enum mt8173_rt5650_mclk pll_from;
  25        /* 0 = external oscillator; 1 = internal source from mt8173 */
  26};
  27
  28static struct mt8173_rt5650_platform_data mt8173_rt5650_priv = {
  29        .pll_from = MT8173_RT5650_MCLK_EXTERNAL,
  30};
  31
  32static 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
  39static 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
  50static 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
  57static 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
  97static const struct snd_soc_ops mt8173_rt5650_ops = {
  98        .hw_params = mt8173_rt5650_hw_params,
  99};
 100
 101static struct snd_soc_jack mt8173_rt5650_jack, mt8173_rt5650_hdmi_jack;
 102
 103static 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
 147static 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
 160enum {
 161        DAI_LINK_PLAYBACK,
 162        DAI_LINK_CAPTURE,
 163        DAI_LINK_HDMI,
 164        DAI_LINK_CODEC_I2S,
 165        DAI_LINK_HDMI_I2S,
 166};
 167
 168SND_SOC_DAILINK_DEFS(playback,
 169        DAILINK_COMP_ARRAY(COMP_CPU("DL1")),
 170        DAILINK_COMP_ARRAY(COMP_DUMMY()),
 171        DAILINK_COMP_ARRAY(COMP_EMPTY()));
 172
 173SND_SOC_DAILINK_DEFS(capture,
 174        DAILINK_COMP_ARRAY(COMP_CPU("VUL")),
 175        DAILINK_COMP_ARRAY(COMP_DUMMY()),
 176        DAILINK_COMP_ARRAY(COMP_EMPTY()));
 177
 178SND_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
 183SND_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
 189SND_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 */
 195static 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
 243static 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
 256static 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
 329static const struct of_device_id mt8173_rt5650_dt_match[] = {
 330        { .compatible = "mediatek,mt8173-rt5650", },
 331        { }
 332};
 333MODULE_DEVICE_TABLE(of, mt8173_rt5650_dt_match);
 334
 335static 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
 346module_platform_driver(mt8173_rt5650_driver);
 347
 348/* Module information */
 349MODULE_DESCRIPTION("MT8173 RT5650 SoC machine driver");
 350MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
 351MODULE_LICENSE("GPL v2");
 352MODULE_ALIAS("platform:mtk-rt5650");
 353
 354