sound/soc/mediatek/mt8173-rt5650.c

   1 /*
   2  * mt8173-rt5650.c  --  MT8173 machine driver with RT5650 codecs
   3  *
   4  * Copyright (c) 2016 MediaTek Inc.
   5  * Author: Koro Chen <koro.chen@mediatek.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 and
   9  * only version 2 as published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  */
  16
  17 #include <linux/module.h>
  18 #include <linux/gpio.h>
  19 #include <linux/of_gpio.h>
  20 #include <sound/soc.h>
  21 #include <sound/jack.h>
  22 #include "../codecs/rt5645.h"
  23
  24 #define MCLK_FOR_CODECS         12288000
  25
  26 static const struct snd_soc_dapm_widget mt8173_rt5650_widgets[] = {
  27         SND_SOC_DAPM_SPK("Speaker", NULL),
  28         SND_SOC_DAPM_MIC("Int Mic", NULL),
  29         SND_SOC_DAPM_HP("Headphone", NULL),
  30         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  31 };
  32
  33 static const struct snd_soc_dapm_route mt8173_rt5650_routes[] = {
  34         {"Speaker", NULL, "SPOL"},
  35         {"Speaker", NULL, "SPOR"},
  36         {"DMIC L1", NULL, "Int Mic"},
  37         {"DMIC R1", NULL, "Int Mic"},
  38         {"Headphone", NULL, "HPOL"},
  39         {"Headphone", NULL, "HPOR"},
  40         {"Headset Mic", NULL, "micbias1"},
  41         {"Headset Mic", NULL, "micbias2"},
  42         {"IN1P", NULL, "Headset Mic"},
  43         {"IN1N", NULL, "Headset Mic"},
  44 };
  45
  46 static const struct snd_kcontrol_new mt8173_rt5650_controls[] = {
  47         SOC_DAPM_PIN_SWITCH("Speaker"),
  48         SOC_DAPM_PIN_SWITCH("Int Mic"),
  49         SOC_DAPM_PIN_SWITCH("Headphone"),
  50         SOC_DAPM_PIN_SWITCH("Headset Mic"),
  51 };
  52
  53 static int mt8173_rt5650_hw_params(struct snd_pcm_substream *substream,
  54                                    struct snd_pcm_hw_params *params)
  55 {
  56         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  57         int i, ret;
  58
  59         for (i = 0; i < rtd->num_codecs; i++) {
  60                 struct snd_soc_dai *codec_dai = rtd->codec_dais[i];
  61
  62                 /* pll from mclk 12.288M */
  63                 ret = snd_soc_dai_set_pll(codec_dai, 0, 0, MCLK_FOR_CODECS,
  64                                           params_rate(params) * 512);
  65                 if (ret)
  66                         return ret;
  67
  68                 /* sysclk from pll */
  69                 ret = snd_soc_dai_set_sysclk(codec_dai, 1,
  70                                              params_rate(params) * 512,
  71                                              SND_SOC_CLOCK_IN);
  72                 if (ret)
  73                         return ret;
  74         }
  75         return 0;
  76 }
  77
  78 static struct snd_soc_ops mt8173_rt5650_ops = {
  79         .hw_params = mt8173_rt5650_hw_params,
  80 };
  81
  82 static struct snd_soc_jack mt8173_rt5650_jack;
  83
  84 static int mt8173_rt5650_init(struct snd_soc_pcm_runtime *runtime)
  85 {
  86         struct snd_soc_card *card = runtime->card;
  87         struct snd_soc_codec *codec = runtime->codec_dais[0]->codec;
  88         const char *codec_capture_dai = runtime->codec_dais[1]->name;
  89         int ret;
  90
  91         rt5645_sel_asrc_clk_src(codec,
  92                                 RT5645_DA_STEREO_FILTER,
  93                                 RT5645_CLK_SEL_I2S1_ASRC);
  94
  95         if (!strcmp(codec_capture_dai, "rt5645-aif1")) {
  96                 rt5645_sel_asrc_clk_src(codec,
  97                                         RT5645_AD_STEREO_FILTER,
  98                                         RT5645_CLK_SEL_I2S1_ASRC);
  99         } else if (!strcmp(codec_capture_dai, "rt5645-aif2")) {
 100                 rt5645_sel_asrc_clk_src(codec,
 101                                         RT5645_AD_STEREO_FILTER,
 102                                         RT5645_CLK_SEL_I2S2_ASRC);
 103         } else {
 104                 dev_warn(card->dev,
 105                          "Only one dai codec found in DTS, enabled rt5645 AD filter\n");
 106                 rt5645_sel_asrc_clk_src(codec,
 107                                         RT5645_AD_STEREO_FILTER,
 108                                         RT5645_CLK_SEL_I2S1_ASRC);
 109         }
 110
 111         /* enable jack detection */
 112         ret = snd_soc_card_jack_new(card, "Headset Jack",
 113                                     SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
 114                                     SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 115                                     SND_JACK_BTN_2 | SND_JACK_BTN_3,
 116                                     &mt8173_rt5650_jack, NULL, 0);
 117         if (ret) {
 118                 dev_err(card->dev, "Can't new Headset Jack %d\n", ret);
 119                 return ret;
 120         }
 121
 122         return rt5645_set_jack_detect(codec,
 123                                       &mt8173_rt5650_jack,
 124                                       &mt8173_rt5650_jack,
 125                                       &mt8173_rt5650_jack);
 126 }
 127
 128 static struct snd_soc_dai_link_component mt8173_rt5650_codecs[] = {
 129         {
 130                 /* Playback */
 131                 .dai_name = "rt5645-aif1",
 132         },
 133         {
 134                 /* Capture */
 135                 .dai_name = "rt5645-aif1",
 136         },
 137 };
 138
 139 enum {
 140         DAI_LINK_PLAYBACK,
 141         DAI_LINK_CAPTURE,
 142         DAI_LINK_CODEC_I2S,
 143 };
 144
 145 /* Digital audio interface glue - connects codec <---> CPU */
 146 static struct snd_soc_dai_link mt8173_rt5650_dais[] = {
 147         /* Front End DAI links */
 148         [DAI_LINK_PLAYBACK] = {
 149                 .name = "rt5650 Playback",
 150                 .stream_name = "rt5650 Playback",
 151                 .cpu_dai_name = "DL1",
 152                 .codec_name = "snd-soc-dummy",
 153                 .codec_dai_name = "snd-soc-dummy-dai",
 154                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 155                 .dynamic = 1,
 156                 .dpcm_playback = 1,
 157         },
 158         [DAI_LINK_CAPTURE] = {
 159                 .name = "rt5650 Capture",
 160                 .stream_name = "rt5650 Capture",
 161                 .cpu_dai_name = "VUL",
 162                 .codec_name = "snd-soc-dummy",
 163                 .codec_dai_name = "snd-soc-dummy-dai",
 164                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 165                 .dynamic = 1,
 166                 .dpcm_capture = 1,
 167         },
 168         /* Back End DAI links */
 169         [DAI_LINK_CODEC_I2S] = {
 170                 .name = "Codec",
 171                 .cpu_dai_name = "I2S",
 172                 .no_pcm = 1,
 173                 .codecs = mt8173_rt5650_codecs,
 174                 .num_codecs = 2,
 175                 .init = mt8173_rt5650_init,
 176                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 177                            SND_SOC_DAIFMT_CBS_CFS,
 178                 .ops = &mt8173_rt5650_ops,
 179                 .ignore_pmdown_time = 1,
 180                 .dpcm_playback = 1,
 181                 .dpcm_capture = 1,
 182         },
 183 };
 184
 185 static struct snd_soc_card mt8173_rt5650_card = {
 186         .name = "mtk-rt5650",
 187         .owner = THIS_MODULE,
 188         .dai_link = mt8173_rt5650_dais,
 189         .num_links = ARRAY_SIZE(mt8173_rt5650_dais),
 190         .controls = mt8173_rt5650_controls,
 191         .num_controls = ARRAY_SIZE(mt8173_rt5650_controls),
 192         .dapm_widgets = mt8173_rt5650_widgets,
 193         .num_dapm_widgets = ARRAY_SIZE(mt8173_rt5650_widgets),
 194         .dapm_routes = mt8173_rt5650_routes,
 195         .num_dapm_routes = ARRAY_SIZE(mt8173_rt5650_routes),
 196 };
 197
 198 static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
 199 {
 200         struct snd_soc_card *card = &mt8173_rt5650_card;
 201         struct device_node *platform_node;
 202         struct device_node *np;
 203         const char *codec_capture_dai;
 204         int i, ret;
 205
 206         platform_node = of_parse_phandle(pdev->dev.of_node,
 207                                          "mediatek,platform", 0);
 208         if (!platform_node) {
 209                 dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
 210                 return -EINVAL;
 211         }
 212
 213         for (i = 0; i < card->num_links; i++) {
 214                 if (mt8173_rt5650_dais[i].platform_name)
 215                         continue;
 216                 mt8173_rt5650_dais[i].platform_of_node = platform_node;
 217         }
 218
 219         mt8173_rt5650_codecs[0].of_node =
 220                 of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 0);
 221         if (!mt8173_rt5650_codecs[0].of_node) {
 222                 dev_err(&pdev->dev,
 223                         "Property 'audio-codec' missing or invalid\n");
 224                 return -EINVAL;
 225         }
 226         mt8173_rt5650_codecs[1].of_node = mt8173_rt5650_codecs[0].of_node;
 227
 228         if (of_find_node_by_name(platform_node, "codec-capture")) {
 229                 np = of_get_child_by_name(pdev->dev.of_node, "codec-capture");
 230                 if (!np) {
 231                         dev_err(&pdev->dev,
 232                                 "%s: Can't find codec-capture DT node\n",
 233                                 __func__);
 234                         return -EINVAL;
 235                 }
 236                 ret = snd_soc_of_get_dai_name(np, &codec_capture_dai);
 237                 if (ret < 0) {
 238                         dev_err(&pdev->dev,
 239                                 "%s codec_capture_dai name fail %d\n",
 240                                 __func__, ret);
 241                         return ret;
 242                 }
 243                 mt8173_rt5650_codecs[1].dai_name = codec_capture_dai;
 244         }
 245
 246         card->dev = &pdev->dev;
 247         platform_set_drvdata(pdev, card);
 248
 249         ret = devm_snd_soc_register_card(&pdev->dev, card);
 250         if (ret)
 251                 dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
 252                         __func__, ret);
 253         return ret;
 254 }
 255
 256 static const struct of_device_id mt8173_rt5650_dt_match[] = {
 257         { .compatible = "mediatek,mt8173-rt5650", },
 258         { }
 259 };
 260 MODULE_DEVICE_TABLE(of, mt8173_rt5650_dt_match);
 261
 262 static struct platform_driver mt8173_rt5650_driver = {
 263         .driver = {
 264                    .name = "mtk-rt5650",
 265                    .of_match_table = mt8173_rt5650_dt_match,
 266 #ifdef CONFIG_PM
 267                    .pm = &snd_soc_pm_ops,
 268 #endif
 269         },
 270         .probe = mt8173_rt5650_dev_probe,
 271 };
 272
 273 module_platform_driver(mt8173_rt5650_driver);
 274
 275 /* Module information */
 276 MODULE_DESCRIPTION("MT8173 RT5650 SoC machine driver");
 277 MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
 278 MODULE_LICENSE("GPL v2");
 279 MODULE_ALIAS("platform:mtk-rt5650");
 280