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 <sound/hdmi-codec.h> 15 #include "../../codecs/rt5645.h" 16 17 #define MCLK_FOR_CODECS 12288000 18 19 enum mt8173_rt5650_mclk { 20 MT8173_RT5650_MCLK_EXTERNAL = 0, 21 MT8173_RT5650_MCLK_INTERNAL, 22 }; 23 24 struct mt8173_rt5650_platform_data { 25 enum mt8173_rt5650_mclk pll_from; 26 /* 0 = external oscillator; 1 = internal source from mt8173 */ 27 }; 28 29 static struct mt8173_rt5650_platform_data mt8173_rt5650_priv = { 30 .pll_from = MT8173_RT5650_MCLK_EXTERNAL, 31 }; 32 33 static const struct snd_soc_dapm_widget mt8173_rt5650_widgets[] = { 34 SND_SOC_DAPM_SPK("Speaker", NULL), 35 SND_SOC_DAPM_MIC("Int Mic", NULL), 36 SND_SOC_DAPM_HP("Headphone", NULL), 37 SND_SOC_DAPM_MIC("Headset Mic", NULL), 38 }; 39 40 static const struct snd_soc_dapm_route mt8173_rt5650_routes[] = { 41 {"Speaker", NULL, "SPOL"}, 42 {"Speaker", NULL, "SPOR"}, 43 {"DMIC L1", NULL, "Int Mic"}, 44 {"DMIC R1", NULL, "Int Mic"}, 45 {"Headphone", NULL, "HPOL"}, 46 {"Headphone", NULL, "HPOR"}, 47 {"IN1P", NULL, "Headset Mic"}, 48 {"IN1N", NULL, "Headset Mic"}, 49 }; 50 51 static const struct snd_kcontrol_new mt8173_rt5650_controls[] = { 52 SOC_DAPM_PIN_SWITCH("Speaker"), 53 SOC_DAPM_PIN_SWITCH("Int Mic"), 54 SOC_DAPM_PIN_SWITCH("Headphone"), 55 SOC_DAPM_PIN_SWITCH("Headset Mic"), 56 }; 57 58 static int mt8173_rt5650_hw_params(struct snd_pcm_substream *substream, 59 struct snd_pcm_hw_params *params) 60 { 61 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 62 unsigned int mclk_clock; 63 struct snd_soc_dai *codec_dai; 64 int i, ret; 65 66 switch (mt8173_rt5650_priv.pll_from) { 67 case MT8173_RT5650_MCLK_EXTERNAL: 68 /* mclk = 12.288M */ 69 mclk_clock = MCLK_FOR_CODECS; 70 break; 71 case MT8173_RT5650_MCLK_INTERNAL: 72 /* mclk = sampling rate*256 */ 73 mclk_clock = params_rate(params) * 256; 74 break; 75 default: 76 /* mclk = 12.288M */ 77 mclk_clock = MCLK_FOR_CODECS; 78 break; 79 } 80 81 for_each_rtd_codec_dais(rtd, i, codec_dai) { 82 /* pll from mclk */ 83 ret = snd_soc_dai_set_pll(codec_dai, 0, 0, mclk_clock, 84 params_rate(params) * 512); 85 if (ret) 86 return ret; 87 88 /* sysclk from pll */ 89 ret = snd_soc_dai_set_sysclk(codec_dai, 1, 90 params_rate(params) * 512, 91 SND_SOC_CLOCK_IN); 92 if (ret) 93 return ret; 94 } 95 return 0; 96 } 97 98 static const struct snd_soc_ops mt8173_rt5650_ops = { 99 .hw_params = mt8173_rt5650_hw_params, 100 }; 101 102 static struct snd_soc_jack mt8173_rt5650_jack, mt8173_rt5650_hdmi_jack; 103 104 static int mt8173_rt5650_init(struct snd_soc_pcm_runtime *runtime) 105 { 106 struct snd_soc_card *card = runtime->card; 107 struct snd_soc_component *component = asoc_rtd_to_codec(runtime, 0)->component; 108 const char *codec_capture_dai = asoc_rtd_to_codec(runtime, 1)->name; 109 int ret; 110 111 rt5645_sel_asrc_clk_src(component, 112 RT5645_DA_STEREO_FILTER, 113 RT5645_CLK_SEL_I2S1_ASRC); 114 115 if (!strcmp(codec_capture_dai, "rt5645-aif1")) { 116 rt5645_sel_asrc_clk_src(component, 117 RT5645_AD_STEREO_FILTER, 118 RT5645_CLK_SEL_I2S1_ASRC); 119 } else if (!strcmp(codec_capture_dai, "rt5645-aif2")) { 120 rt5645_sel_asrc_clk_src(component, 121 RT5645_AD_STEREO_FILTER, 122 RT5645_CLK_SEL_I2S2_ASRC); 123 } else { 124 dev_warn(card->dev, 125 "Only one dai codec found in DTS, enabled rt5645 AD filter\n"); 126 rt5645_sel_asrc_clk_src(component, 127 RT5645_AD_STEREO_FILTER, 128 RT5645_CLK_SEL_I2S1_ASRC); 129 } 130 131 /* enable jack detection */ 132 ret = snd_soc_card_jack_new(card, "Headset Jack", 133 SND_JACK_HEADPHONE | SND_JACK_MICROPHONE | 134 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 135 SND_JACK_BTN_2 | SND_JACK_BTN_3, 136 &mt8173_rt5650_jack, NULL, 0); 137 if (ret) { 138 dev_err(card->dev, "Can't new Headset Jack %d\n", ret); 139 return ret; 140 } 141 142 return rt5645_set_jack_detect(component, 143 &mt8173_rt5650_jack, 144 &mt8173_rt5650_jack, 145 &mt8173_rt5650_jack); 146 } 147 148 static int mt8173_rt5650_hdmi_init(struct snd_soc_pcm_runtime *rtd) 149 { 150 int ret; 151 152 ret = snd_soc_card_jack_new(rtd->card, "HDMI Jack", SND_JACK_LINEOUT, 153 &mt8173_rt5650_hdmi_jack, NULL, 0); 154 if (ret) 155 return ret; 156 157 return hdmi_codec_set_jack_detect(asoc_rtd_to_codec(rtd, 0)->component, 158 &mt8173_rt5650_hdmi_jack); 159 } 160 161 enum { 162 DAI_LINK_PLAYBACK, 163 DAI_LINK_CAPTURE, 164 DAI_LINK_HDMI, 165 DAI_LINK_CODEC_I2S, 166 DAI_LINK_HDMI_I2S, 167 }; 168 169 SND_SOC_DAILINK_DEFS(playback, 170 DAILINK_COMP_ARRAY(COMP_CPU("DL1")), 171 DAILINK_COMP_ARRAY(COMP_DUMMY()), 172 DAILINK_COMP_ARRAY(COMP_EMPTY())); 173 174 SND_SOC_DAILINK_DEFS(capture, 175 DAILINK_COMP_ARRAY(COMP_CPU("VUL")), 176 DAILINK_COMP_ARRAY(COMP_DUMMY()), 177 DAILINK_COMP_ARRAY(COMP_EMPTY())); 178 179 SND_SOC_DAILINK_DEFS(hdmi_pcm, 180 DAILINK_COMP_ARRAY(COMP_CPU("HDMI")), 181 DAILINK_COMP_ARRAY(COMP_DUMMY()), 182 DAILINK_COMP_ARRAY(COMP_EMPTY())); 183 184 SND_SOC_DAILINK_DEFS(codec, 185 DAILINK_COMP_ARRAY(COMP_CPU("I2S")), 186 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "rt5645-aif1"), /* Playback */ 187 COMP_CODEC(NULL, "rt5645-aif1")),/* Capture */ 188 DAILINK_COMP_ARRAY(COMP_EMPTY())); 189 190 SND_SOC_DAILINK_DEFS(hdmi_be, 191 DAILINK_COMP_ARRAY(COMP_CPU("HDMIO")), 192 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "i2s-hifi")), 193 DAILINK_COMP_ARRAY(COMP_EMPTY())); 194 195 /* Digital audio interface glue - connects codec <---> CPU */ 196 static struct snd_soc_dai_link mt8173_rt5650_dais[] = { 197 /* Front End DAI links */ 198 [DAI_LINK_PLAYBACK] = { 199 .name = "rt5650 Playback", 200 .stream_name = "rt5650 Playback", 201 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 202 .dynamic = 1, 203 .dpcm_playback = 1, 204 SND_SOC_DAILINK_REG(playback), 205 }, 206 [DAI_LINK_CAPTURE] = { 207 .name = "rt5650 Capture", 208 .stream_name = "rt5650 Capture", 209 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 210 .dynamic = 1, 211 .dpcm_capture = 1, 212 SND_SOC_DAILINK_REG(capture), 213 }, 214 [DAI_LINK_HDMI] = { 215 .name = "HDMI", 216 .stream_name = "HDMI PCM", 217 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 218 .dynamic = 1, 219 .dpcm_playback = 1, 220 SND_SOC_DAILINK_REG(hdmi_pcm), 221 }, 222 /* Back End DAI links */ 223 [DAI_LINK_CODEC_I2S] = { 224 .name = "Codec", 225 .no_pcm = 1, 226 .init = mt8173_rt5650_init, 227 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 228 SND_SOC_DAIFMT_CBS_CFS, 229 .ops = &mt8173_rt5650_ops, 230 .ignore_pmdown_time = 1, 231 .dpcm_playback = 1, 232 .dpcm_capture = 1, 233 SND_SOC_DAILINK_REG(codec), 234 }, 235 [DAI_LINK_HDMI_I2S] = { 236 .name = "HDMI BE", 237 .no_pcm = 1, 238 .dpcm_playback = 1, 239 .init = mt8173_rt5650_hdmi_init, 240 SND_SOC_DAILINK_REG(hdmi_be), 241 }, 242 }; 243 244 static struct snd_soc_card mt8173_rt5650_card = { 245 .name = "mtk-rt5650", 246 .owner = THIS_MODULE, 247 .dai_link = mt8173_rt5650_dais, 248 .num_links = ARRAY_SIZE(mt8173_rt5650_dais), 249 .controls = mt8173_rt5650_controls, 250 .num_controls = ARRAY_SIZE(mt8173_rt5650_controls), 251 .dapm_widgets = mt8173_rt5650_widgets, 252 .num_dapm_widgets = ARRAY_SIZE(mt8173_rt5650_widgets), 253 .dapm_routes = mt8173_rt5650_routes, 254 .num_dapm_routes = ARRAY_SIZE(mt8173_rt5650_routes), 255 }; 256 257 static int mt8173_rt5650_dev_probe(struct platform_device *pdev) 258 { 259 struct snd_soc_card *card = &mt8173_rt5650_card; 260 struct device_node *platform_node; 261 struct device_node *np; 262 const char *codec_capture_dai; 263 struct snd_soc_dai_link *dai_link; 264 int i, ret; 265 266 platform_node = of_parse_phandle(pdev->dev.of_node, 267 "mediatek,platform", 0); 268 if (!platform_node) { 269 dev_err(&pdev->dev, "Property 'platform' missing or invalid\n"); 270 return -EINVAL; 271 } 272 273 for_each_card_prelinks(card, i, dai_link) { 274 if (dai_link->platforms->name) 275 continue; 276 dai_link->platforms->of_node = platform_node; 277 } 278 279 mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node = 280 of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 0); 281 if (!mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node) { 282 dev_err(&pdev->dev, 283 "Property 'audio-codec' missing or invalid\n"); 284 return -EINVAL; 285 } 286 mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[1].of_node = 287 mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[0].of_node; 288 289 np = of_get_child_by_name(pdev->dev.of_node, "codec-capture"); 290 if (np) { 291 ret = snd_soc_of_get_dai_name(np, &codec_capture_dai); 292 of_node_put(np); 293 if (ret < 0) { 294 dev_err(&pdev->dev, 295 "%s codec_capture_dai name fail %d\n", 296 __func__, ret); 297 return ret; 298 } 299 mt8173_rt5650_dais[DAI_LINK_CODEC_I2S].codecs[1].dai_name = 300 codec_capture_dai; 301 } 302 303 if (device_property_present(&pdev->dev, "mediatek,mclk")) { 304 ret = device_property_read_u32(&pdev->dev, 305 "mediatek,mclk", 306 &mt8173_rt5650_priv.pll_from); 307 if (ret) { 308 dev_err(&pdev->dev, 309 "%s snd_soc_register_card fail %d\n", 310 __func__, ret); 311 } 312 } 313 314 mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codecs->of_node = 315 of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 1); 316 if (!mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codecs->of_node) { 317 dev_err(&pdev->dev, 318 "Property 'audio-codec' missing or invalid\n"); 319 return -EINVAL; 320 } 321 card->dev = &pdev->dev; 322 323 ret = devm_snd_soc_register_card(&pdev->dev, card); 324 if (ret) 325 dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n", 326 __func__, ret); 327 return ret; 328 } 329 330 static const struct of_device_id mt8173_rt5650_dt_match[] = { 331 { .compatible = "mediatek,mt8173-rt5650", }, 332 { } 333 }; 334 MODULE_DEVICE_TABLE(of, mt8173_rt5650_dt_match); 335 336 static struct platform_driver mt8173_rt5650_driver = { 337 .driver = { 338 .name = "mtk-rt5650", 339 .of_match_table = mt8173_rt5650_dt_match, 340 #ifdef CONFIG_PM 341 .pm = &snd_soc_pm_ops, 342 #endif 343 }, 344 .probe = mt8173_rt5650_dev_probe, 345 }; 346 347 module_platform_driver(mt8173_rt5650_driver); 348 349 /* Module information */ 350 MODULE_DESCRIPTION("MT8173 RT5650 SoC machine driver"); 351 MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>"); 352 MODULE_LICENSE("GPL v2"); 353 MODULE_ALIAS("platform:mtk-rt5650"); 354 355