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("Ext Spk", 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 {"Ext Spk", NULL, "SPOL"}, 41 {"Ext Spk", 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("Ext Spk"), 52 SOC_DAPM_PIN_SWITCH("Int Mic"), 53 SOC_DAPM_PIN_SWITCH("Headphone"), 54 SOC_DAPM_PIN_SWITCH("Headset Mic"), 55 }; 56 57 static struct snd_soc_jack_pin mt8173_rt5650_jack_pins[] = { 58 { 59 .pin = "Headphone", 60 .mask = SND_JACK_HEADPHONE, 61 }, 62 { 63 .pin = "Headset Mic", 64 .mask = SND_JACK_MICROPHONE, 65 }, 66 }; 67 68 static int mt8173_rt5650_hw_params(struct snd_pcm_substream *substream, 69 struct snd_pcm_hw_params *params) 70 { 71 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 72 unsigned int mclk_clock; 73 struct snd_soc_dai *codec_dai; 74 int i, ret; 75 76 switch (mt8173_rt5650_priv.pll_from) { 77 case MT8173_RT5650_MCLK_EXTERNAL: 78 /* mclk = 12.288M */ 79 mclk_clock = MCLK_FOR_CODECS; 80 break; 81 case MT8173_RT5650_MCLK_INTERNAL: 82 /* mclk = sampling rate*256 */ 83 mclk_clock = params_rate(params) * 256; 84 break; 85 default: 86 /* mclk = 12.288M */ 87 mclk_clock = MCLK_FOR_CODECS; 88 break; 89 } 90 91 for_each_rtd_codec_dais(rtd, i, codec_dai) { 92 /* pll from mclk */ 93 ret = snd_soc_dai_set_pll(codec_dai, 0, 0, mclk_clock, 94 params_rate(params) * 512); 95 if (ret) 96 return ret; 97 98 /* sysclk from pll */ 99 ret = snd_soc_dai_set_sysclk(codec_dai, 1, 100 params_rate(params) * 512, 101 SND_SOC_CLOCK_IN); 102 if (ret) 103 return ret; 104 } 105 return 0; 106 } 107 108 static const struct snd_soc_ops mt8173_rt5650_ops = { 109 .hw_params = mt8173_rt5650_hw_params, 110 }; 111 112 static struct snd_soc_jack mt8173_rt5650_jack, mt8173_rt5650_hdmi_jack; 113 114 static int mt8173_rt5650_init(struct snd_soc_pcm_runtime *runtime) 115 { 116 struct snd_soc_card *card = runtime->card; 117 struct snd_soc_component *component = asoc_rtd_to_codec(runtime, 0)->component; 118 const char *codec_capture_dai = asoc_rtd_to_codec(runtime, 1)->name; 119 int ret; 120 121 rt5645_sel_asrc_clk_src(component, 122 RT5645_DA_STEREO_FILTER, 123 RT5645_CLK_SEL_I2S1_ASRC); 124 125 if (!strcmp(codec_capture_dai, "rt5645-aif1")) { 126 rt5645_sel_asrc_clk_src(component, 127 RT5645_AD_STEREO_FILTER, 128 RT5645_CLK_SEL_I2S1_ASRC); 129 } else if (!strcmp(codec_capture_dai, "rt5645-aif2")) { 130 rt5645_sel_asrc_clk_src(component, 131 RT5645_AD_STEREO_FILTER, 132 RT5645_CLK_SEL_I2S2_ASRC); 133 } else { 134 dev_warn(card->dev, 135 "Only one dai codec found in DTS, enabled rt5645 AD filter\n"); 136 rt5645_sel_asrc_clk_src(component, 137 RT5645_AD_STEREO_FILTER, 138 RT5645_CLK_SEL_I2S1_ASRC); 139 } 140 141 /* enable jack detection */ 142 ret = snd_soc_card_jack_new_pins(card, "Headset Jack", 143 SND_JACK_HEADPHONE | SND_JACK_MICROPHONE | 144 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 145 SND_JACK_BTN_2 | SND_JACK_BTN_3, 146 &mt8173_rt5650_jack, 147 mt8173_rt5650_jack_pins, 148 ARRAY_SIZE(mt8173_rt5650_jack_pins)); 149 if (ret) { 150 dev_err(card->dev, "Can't new Headset Jack %d\n", ret); 151 return ret; 152 } 153 154 return rt5645_set_jack_detect(component, 155 &mt8173_rt5650_jack, 156 &mt8173_rt5650_jack, 157 &mt8173_rt5650_jack); 158 } 159 160 static int mt8173_rt5650_hdmi_init(struct snd_soc_pcm_runtime *rtd) 161 { 162 int ret; 163 164 ret = snd_soc_card_jack_new(rtd->card, "HDMI Jack", SND_JACK_LINEOUT, 165 &mt8173_rt5650_hdmi_jack); 166 if (ret) 167 return ret; 168 169 return snd_soc_component_set_jack(asoc_rtd_to_codec(rtd, 0)->component, 170 &mt8173_rt5650_hdmi_jack, NULL); 171 } 172 173 enum { 174 DAI_LINK_PLAYBACK, 175 DAI_LINK_CAPTURE, 176 DAI_LINK_HDMI, 177 DAI_LINK_CODEC_I2S, 178 DAI_LINK_HDMI_I2S, 179 }; 180 181 SND_SOC_DAILINK_DEFS(playback, 182 DAILINK_COMP_ARRAY(COMP_CPU("DL1")), 183 DAILINK_COMP_ARRAY(COMP_DUMMY()), 184 DAILINK_COMP_ARRAY(COMP_EMPTY())); 185 186 SND_SOC_DAILINK_DEFS(capture, 187 DAILINK_COMP_ARRAY(COMP_CPU("VUL")), 188 DAILINK_COMP_ARRAY(COMP_DUMMY()), 189 DAILINK_COMP_ARRAY(COMP_EMPTY())); 190 191 SND_SOC_DAILINK_DEFS(hdmi_pcm, 192 DAILINK_COMP_ARRAY(COMP_CPU("HDMI")), 193 DAILINK_COMP_ARRAY(COMP_DUMMY()), 194 DAILINK_COMP_ARRAY(COMP_EMPTY())); 195 196 SND_SOC_DAILINK_DEFS(codec, 197 DAILINK_COMP_ARRAY(COMP_CPU("I2S")), 198 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "rt5645-aif1"), /* Playback */ 199 COMP_CODEC(NULL, "rt5645-aif1")),/* Capture */ 200 DAILINK_COMP_ARRAY(COMP_EMPTY())); 201 202 SND_SOC_DAILINK_DEFS(hdmi_be, 203 DAILINK_COMP_ARRAY(COMP_CPU("HDMIO")), 204 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "i2s-hifi")), 205 DAILINK_COMP_ARRAY(COMP_EMPTY())); 206 207 /* Digital audio interface glue - connects codec <---> CPU */ 208 static struct snd_soc_dai_link mt8173_rt5650_dais[] = { 209 /* Front End DAI links */ 210 [DAI_LINK_PLAYBACK] = { 211 .name = "rt5650 Playback", 212 .stream_name = "rt5650 Playback", 213 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 214 .dynamic = 1, 215 .dpcm_playback = 1, 216 SND_SOC_DAILINK_REG(playback), 217 }, 218 [DAI_LINK_CAPTURE] = { 219 .name = "rt5650 Capture", 220 .stream_name = "rt5650 Capture", 221 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 222 .dynamic = 1, 223 .dpcm_capture = 1, 224 SND_SOC_DAILINK_REG(capture), 225 }, 226 [DAI_LINK_HDMI] = { 227 .name = "HDMI", 228 .stream_name = "HDMI PCM", 229 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 230 .dynamic = 1, 231 .dpcm_playback = 1, 232 SND_SOC_DAILINK_REG(hdmi_pcm), 233 }, 234 /* Back End DAI links */ 235 [DAI_LINK_CODEC_I2S] = { 236 .name = "Codec", 237 .no_pcm = 1, 238 .init = mt8173_rt5650_init, 239 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 240 SND_SOC_DAIFMT_CBS_CFS, 241 .ops = &mt8173_rt5650_ops, 242 .ignore_pmdown_time = 1, 243 .dpcm_playback = 1, 244 .dpcm_capture = 1, 245 SND_SOC_DAILINK_REG(codec), 246 }, 247 [DAI_LINK_HDMI_I2S] = { 248 .name = "HDMI BE", 249 .no_pcm = 1, 250 .dpcm_playback = 1, 251 .init = mt8173_rt5650_hdmi_init, 252 SND_SOC_DAILINK_REG(hdmi_be), 253 }, 254 }; 255 256 static struct snd_soc_card mt8173_rt5650_card = { 257 .name = "mtk-rt5650", 258 .owner = THIS_MODULE, 259 .dai_link = mt8173_rt5650_dais, 260 .num_links = ARRAY_SIZE(mt8173_rt5650_dais), 261 .controls = mt8173_rt5650_controls, 262 .num_controls = ARRAY_SIZE(mt8173_rt5650_controls), 263 .dapm_widgets = mt8173_rt5650_widgets, 264 .num_dapm_widgets = ARRAY_SIZE(mt8173_rt5650_widgets), 265 .dapm_routes = mt8173_rt5650_routes, 266 .num_dapm_routes = ARRAY_SIZE(mt8173_rt5650_routes), 267 }; 268 269 static int mt8173_rt5650_dev_probe(struct platform_device *pdev) 270 { 271 struct snd_soc_card *card = &mt8173_rt5650_card; 272 struct device_node *platform_node; 273 struct device_node *np; 274 const char *codec_capture_dai; 275 struct snd_soc_dai_link *dai_link; 276 int i, ret; 277 278 platform_node = of_parse_phandle(pdev->dev.of_node, 279 "mediatek,platform", 0); 280 if (!platform_node) { 281 dev_err(&pdev->dev, "Property 'platform' missing or invalid\n"); 282 return -EINVAL; 283 } 284 285 for_each_card_prelinks(card, i, dai_link) { 286 if (dai_link->platforms->name) 287 continue; 288 dai_link->platforms->of_node = platform_node; 289 } 290 291 mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node = 292 of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 0); 293 if (!mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node) { 294 dev_err(&pdev->dev, 295 "Property 'audio-codec' missing or invalid\n"); 296 ret = -EINVAL; 297 goto put_platform_node; 298 } 299 mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[1].of_node = 300 mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node; 301 302 np = of_get_child_by_name(pdev->dev.of_node, "codec-capture"); 303 if (np) { 304 ret = snd_soc_of_get_dai_name(np, &codec_capture_dai, 0); 305 of_node_put(np); 306 if (ret < 0) { 307 dev_err(&pdev->dev, 308 "%s codec_capture_dai name fail %d\n", 309 __func__, ret); 310 goto put_platform_node; 311 } 312 mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[1].dai_name = 313 codec_capture_dai; 314 } 315 316 if (device_property_present(&pdev->dev, "mediatek,mclk")) { 317 ret = device_property_read_u32(&pdev->dev, 318 "mediatek,mclk", 319 &mt8173_rt5650_priv.pll_from); 320 if (ret) { 321 dev_err(&pdev->dev, 322 "%s snd_soc_register_card fail %d\n", 323 __func__, ret); 324 } 325 } 326 327 mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codecs->of_node = 328 of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 1); 329 if (!mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codecs->of_node) { 330 dev_err(&pdev->dev, 331 "Property 'audio-codec' missing or invalid\n"); 332 ret = -EINVAL; 333 goto put_platform_node; 334 } 335 card->dev = &pdev->dev; 336 337 ret = devm_snd_soc_register_card(&pdev->dev, card); 338 339 put_platform_node: 340 of_node_put(platform_node); 341 return ret; 342 } 343 344 static const struct of_device_id mt8173_rt5650_dt_match[] = { 345 { .compatible = "mediatek,mt8173-rt5650", }, 346 { } 347 }; 348 MODULE_DEVICE_TABLE(of, mt8173_rt5650_dt_match); 349 350 static struct platform_driver mt8173_rt5650_driver = { 351 .driver = { 352 .name = "mtk-rt5650", 353 .of_match_table = mt8173_rt5650_dt_match, 354 .pm = &snd_soc_pm_ops, 355 }, 356 .probe = mt8173_rt5650_dev_probe, 357 }; 358 359 module_platform_driver(mt8173_rt5650_driver); 360 361 /* Module information */ 362 MODULE_DESCRIPTION("MT8173 RT5650 SoC machine driver"); 363 MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>"); 364 MODULE_LICENSE("GPL v2"); 365 MODULE_ALIAS("platform:mtk-rt5650"); 366 367