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"); 364 365