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 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 97 static const struct snd_soc_ops mt8173_rt5650_ops = { 98 .hw_params = mt8173_rt5650_hw_params, 99 }; 100 101 static struct snd_soc_jack mt8173_rt5650_jack, mt8173_rt5650_hdmi_jack; 102 103 static 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 } 146 147 static 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 } 159 160 enum { 161 DAI_LINK_PLAYBACK, 162 DAI_LINK_CAPTURE, 163 DAI_LINK_HDMI, 164 DAI_LINK_CODEC_I2S, 165 DAI_LINK_HDMI_I2S, 166 }; 167 168 SND_SOC_DAILINK_DEFS(playback, 169 DAILINK_COMP_ARRAY(COMP_CPU("DL1")), 170 DAILINK_COMP_ARRAY(COMP_DUMMY()), 171 DAILINK_COMP_ARRAY(COMP_EMPTY())); 172 173 SND_SOC_DAILINK_DEFS(capture, 174 DAILINK_COMP_ARRAY(COMP_CPU("VUL")), 175 DAILINK_COMP_ARRAY(COMP_DUMMY()), 176 DAILINK_COMP_ARRAY(COMP_EMPTY())); 177 178 SND_SOC_DAILINK_DEFS(hdmi_pcm, 179 DAILINK_COMP_ARRAY(COMP_CPU("HDMI")), 180 DAILINK_COMP_ARRAY(COMP_DUMMY()), 181 DAILINK_COMP_ARRAY(COMP_EMPTY())); 182 183 SND_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())); 188 189 SND_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 */ 195 static 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 }; 242 243 static 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 }; 255 256 static 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); 323 324 of_node_put(platform_node); 325 return ret; 326 } 327 328 static const struct of_device_id mt8173_rt5650_dt_match[] = { 329 { .compatible = "mediatek,mt8173-rt5650", }, 330 { } 331 }; 332 MODULE_DEVICE_TABLE(of, mt8173_rt5650_dt_match); 333 334 static struct platform_driver mt8173_rt5650_driver = { 335 .driver = { 336 .name = "mtk-rt5650", 337 .of_match_table = mt8173_rt5650_dt_match, 338 .pm = &snd_soc_pm_ops, 339 }, 340 .probe = mt8173_rt5650_dev_probe, 341 }; 342 343 module_platform_driver(mt8173_rt5650_driver); 344 345 /* Module information */ 346 MODULE_DESCRIPTION("MT8173 RT5650 SoC machine driver"); 347 MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>"); 348 MODULE_LICENSE("GPL v2"); 349 MODULE_ALIAS("platform:mtk-rt5650"); 350 351