1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Driver of Inno codec for rk3036 by Rockchip Inc. 4 * 5 * Author: Rockchip Inc. 6 * Author: Zheng ShunQian<zhengsq@rock-chips.com> 7 */ 8 9 #include <sound/soc.h> 10 #include <sound/tlv.h> 11 #include <sound/soc-dapm.h> 12 #include <sound/soc-dai.h> 13 #include <sound/pcm.h> 14 #include <sound/pcm_params.h> 15 16 #include <linux/platform_device.h> 17 #include <linux/of.h> 18 #include <linux/clk.h> 19 #include <linux/regmap.h> 20 #include <linux/device.h> 21 #include <linux/mfd/syscon.h> 22 #include <linux/module.h> 23 #include <linux/io.h> 24 25 #include "inno_rk3036.h" 26 27 struct rk3036_codec_priv { 28 void __iomem *base; 29 struct clk *pclk; 30 struct regmap *regmap; 31 struct device *dev; 32 }; 33 34 static const DECLARE_TLV_DB_MINMAX(rk3036_codec_hp_tlv, -39, 0); 35 36 static int rk3036_codec_antipop_info(struct snd_kcontrol *kcontrol, 37 struct snd_ctl_elem_info *uinfo) 38 { 39 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 40 uinfo->count = 2; 41 uinfo->value.integer.min = 0; 42 uinfo->value.integer.max = 1; 43 44 return 0; 45 } 46 47 static int rk3036_codec_antipop_get(struct snd_kcontrol *kcontrol, 48 struct snd_ctl_elem_value *ucontrol) 49 { 50 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 51 int val, ret, regval; 52 53 ret = snd_soc_component_read(component, INNO_R09, ®val); 54 if (ret) 55 return ret; 56 val = ((regval >> INNO_R09_HPL_ANITPOP_SHIFT) & 57 INNO_R09_HP_ANTIPOP_MSK) == INNO_R09_HP_ANTIPOP_ON; 58 ucontrol->value.integer.value[0] = val; 59 60 val = ((regval >> INNO_R09_HPR_ANITPOP_SHIFT) & 61 INNO_R09_HP_ANTIPOP_MSK) == INNO_R09_HP_ANTIPOP_ON; 62 ucontrol->value.integer.value[1] = val; 63 64 return 0; 65 } 66 67 static int rk3036_codec_antipop_put(struct snd_kcontrol *kcontrol, 68 struct snd_ctl_elem_value *ucontrol) 69 { 70 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 71 int val, ret, regmsk; 72 73 val = (ucontrol->value.integer.value[0] ? 74 INNO_R09_HP_ANTIPOP_ON : INNO_R09_HP_ANTIPOP_OFF) << 75 INNO_R09_HPL_ANITPOP_SHIFT; 76 val |= (ucontrol->value.integer.value[1] ? 77 INNO_R09_HP_ANTIPOP_ON : INNO_R09_HP_ANTIPOP_OFF) << 78 INNO_R09_HPR_ANITPOP_SHIFT; 79 80 regmsk = INNO_R09_HP_ANTIPOP_MSK << INNO_R09_HPL_ANITPOP_SHIFT | 81 INNO_R09_HP_ANTIPOP_MSK << INNO_R09_HPR_ANITPOP_SHIFT; 82 83 ret = snd_soc_component_update_bits(component, INNO_R09, 84 regmsk, val); 85 if (ret < 0) 86 return ret; 87 88 return 0; 89 } 90 91 #define SOC_RK3036_CODEC_ANTIPOP_DECL(xname) \ 92 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 93 .info = rk3036_codec_antipop_info, .get = rk3036_codec_antipop_get, \ 94 .put = rk3036_codec_antipop_put, } 95 96 static const struct snd_kcontrol_new rk3036_codec_dapm_controls[] = { 97 SOC_DOUBLE_R_RANGE_TLV("Headphone Volume", INNO_R07, INNO_R08, 98 INNO_HP_GAIN_SHIFT, INNO_HP_GAIN_N39DB, 99 INNO_HP_GAIN_0DB, 0, rk3036_codec_hp_tlv), 100 SOC_DOUBLE("Zero Cross Switch", INNO_R06, INNO_R06_VOUTL_CZ_SHIFT, 101 INNO_R06_VOUTR_CZ_SHIFT, 1, 0), 102 SOC_DOUBLE("Headphone Switch", INNO_R09, INNO_R09_HPL_MUTE_SHIFT, 103 INNO_R09_HPR_MUTE_SHIFT, 1, 0), 104 SOC_RK3036_CODEC_ANTIPOP_DECL("Anti-pop Switch"), 105 }; 106 107 static const struct snd_kcontrol_new rk3036_codec_hpl_mixer_controls[] = { 108 SOC_DAPM_SINGLE("DAC Left Out Switch", INNO_R09, 109 INNO_R09_DACL_SWITCH_SHIFT, 1, 0), 110 }; 111 112 static const struct snd_kcontrol_new rk3036_codec_hpr_mixer_controls[] = { 113 SOC_DAPM_SINGLE("DAC Right Out Switch", INNO_R09, 114 INNO_R09_DACR_SWITCH_SHIFT, 1, 0), 115 }; 116 117 static const struct snd_kcontrol_new rk3036_codec_hpl_switch_controls[] = { 118 SOC_DAPM_SINGLE("HP Left Out Switch", INNO_R05, 119 INNO_R05_HPL_WORK_SHIFT, 1, 0), 120 }; 121 122 static const struct snd_kcontrol_new rk3036_codec_hpr_switch_controls[] = { 123 SOC_DAPM_SINGLE("HP Right Out Switch", INNO_R05, 124 INNO_R05_HPR_WORK_SHIFT, 1, 0), 125 }; 126 127 static const struct snd_soc_dapm_widget rk3036_codec_dapm_widgets[] = { 128 SND_SOC_DAPM_SUPPLY_S("DAC PWR", 1, INNO_R06, 129 INNO_R06_DAC_EN_SHIFT, 0, NULL, 0), 130 SND_SOC_DAPM_SUPPLY_S("DACL VREF", 2, INNO_R04, 131 INNO_R04_DACL_VREF_SHIFT, 0, NULL, 0), 132 SND_SOC_DAPM_SUPPLY_S("DACR VREF", 2, INNO_R04, 133 INNO_R04_DACR_VREF_SHIFT, 0, NULL, 0), 134 SND_SOC_DAPM_SUPPLY_S("DACL HiLo VREF", 3, INNO_R06, 135 INNO_R06_DACL_HILO_VREF_SHIFT, 0, NULL, 0), 136 SND_SOC_DAPM_SUPPLY_S("DACR HiLo VREF", 3, INNO_R06, 137 INNO_R06_DACR_HILO_VREF_SHIFT, 0, NULL, 0), 138 SND_SOC_DAPM_SUPPLY_S("DACR CLK", 3, INNO_R04, 139 INNO_R04_DACR_CLK_SHIFT, 0, NULL, 0), 140 SND_SOC_DAPM_SUPPLY_S("DACL CLK", 3, INNO_R04, 141 INNO_R04_DACL_CLK_SHIFT, 0, NULL, 0), 142 143 SND_SOC_DAPM_DAC("DACL", "Left Playback", INNO_R04, 144 INNO_R04_DACL_SW_SHIFT, 0), 145 SND_SOC_DAPM_DAC("DACR", "Right Playback", INNO_R04, 146 INNO_R04_DACR_SW_SHIFT, 0), 147 148 SND_SOC_DAPM_MIXER("Left Headphone Mixer", SND_SOC_NOPM, 0, 0, 149 rk3036_codec_hpl_mixer_controls, 150 ARRAY_SIZE(rk3036_codec_hpl_mixer_controls)), 151 SND_SOC_DAPM_MIXER("Right Headphone Mixer", SND_SOC_NOPM, 0, 0, 152 rk3036_codec_hpr_mixer_controls, 153 ARRAY_SIZE(rk3036_codec_hpr_mixer_controls)), 154 155 SND_SOC_DAPM_PGA("HP Left Out", INNO_R05, 156 INNO_R05_HPL_EN_SHIFT, 0, NULL, 0), 157 SND_SOC_DAPM_PGA("HP Right Out", INNO_R05, 158 INNO_R05_HPR_EN_SHIFT, 0, NULL, 0), 159 160 SND_SOC_DAPM_MIXER("HP Left Switch", SND_SOC_NOPM, 0, 0, 161 rk3036_codec_hpl_switch_controls, 162 ARRAY_SIZE(rk3036_codec_hpl_switch_controls)), 163 SND_SOC_DAPM_MIXER("HP Right Switch", SND_SOC_NOPM, 0, 0, 164 rk3036_codec_hpr_switch_controls, 165 ARRAY_SIZE(rk3036_codec_hpr_switch_controls)), 166 167 SND_SOC_DAPM_OUTPUT("HPL"), 168 SND_SOC_DAPM_OUTPUT("HPR"), 169 }; 170 171 static const struct snd_soc_dapm_route rk3036_codec_dapm_routes[] = { 172 {"DACL VREF", NULL, "DAC PWR"}, 173 {"DACR VREF", NULL, "DAC PWR"}, 174 {"DACL HiLo VREF", NULL, "DAC PWR"}, 175 {"DACR HiLo VREF", NULL, "DAC PWR"}, 176 {"DACL CLK", NULL, "DAC PWR"}, 177 {"DACR CLK", NULL, "DAC PWR"}, 178 179 {"DACL", NULL, "DACL VREF"}, 180 {"DACL", NULL, "DACL HiLo VREF"}, 181 {"DACL", NULL, "DACL CLK"}, 182 {"DACR", NULL, "DACR VREF"}, 183 {"DACR", NULL, "DACR HiLo VREF"}, 184 {"DACR", NULL, "DACR CLK"}, 185 186 {"Left Headphone Mixer", "DAC Left Out Switch", "DACL"}, 187 {"Right Headphone Mixer", "DAC Right Out Switch", "DACR"}, 188 {"HP Left Out", NULL, "Left Headphone Mixer"}, 189 {"HP Right Out", NULL, "Right Headphone Mixer"}, 190 191 {"HP Left Switch", "HP Left Out Switch", "HP Left Out"}, 192 {"HP Right Switch", "HP Right Out Switch", "HP Right Out"}, 193 194 {"HPL", NULL, "HP Left Switch"}, 195 {"HPR", NULL, "HP Right Switch"}, 196 }; 197 198 static int rk3036_codec_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) 199 { 200 struct snd_soc_component *component = dai->component; 201 unsigned int reg01_val = 0, reg02_val = 0, reg03_val = 0; 202 203 dev_dbg(component->dev, "rk3036_codec dai set fmt : %08x\n", fmt); 204 205 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 206 case SND_SOC_DAIFMT_CBS_CFS: 207 reg01_val |= INNO_R01_PINDIR_IN_SLAVE | 208 INNO_R01_I2SMODE_SLAVE; 209 break; 210 case SND_SOC_DAIFMT_CBM_CFM: 211 reg01_val |= INNO_R01_PINDIR_OUT_MASTER | 212 INNO_R01_I2SMODE_MASTER; 213 break; 214 default: 215 dev_err(component->dev, "invalid fmt\n"); 216 return -EINVAL; 217 } 218 219 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 220 case SND_SOC_DAIFMT_DSP_A: 221 reg02_val |= INNO_R02_DACM_PCM; 222 break; 223 case SND_SOC_DAIFMT_I2S: 224 reg02_val |= INNO_R02_DACM_I2S; 225 break; 226 case SND_SOC_DAIFMT_RIGHT_J: 227 reg02_val |= INNO_R02_DACM_RJM; 228 break; 229 case SND_SOC_DAIFMT_LEFT_J: 230 reg02_val |= INNO_R02_DACM_LJM; 231 break; 232 default: 233 dev_err(component->dev, "set dai format failed\n"); 234 return -EINVAL; 235 } 236 237 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 238 case SND_SOC_DAIFMT_NB_NF: 239 reg02_val |= INNO_R02_LRCP_NORMAL; 240 reg03_val |= INNO_R03_BCP_NORMAL; 241 break; 242 case SND_SOC_DAIFMT_IB_IF: 243 reg02_val |= INNO_R02_LRCP_REVERSAL; 244 reg03_val |= INNO_R03_BCP_REVERSAL; 245 break; 246 case SND_SOC_DAIFMT_IB_NF: 247 reg02_val |= INNO_R02_LRCP_REVERSAL; 248 reg03_val |= INNO_R03_BCP_NORMAL; 249 break; 250 case SND_SOC_DAIFMT_NB_IF: 251 reg02_val |= INNO_R02_LRCP_NORMAL; 252 reg03_val |= INNO_R03_BCP_REVERSAL; 253 break; 254 default: 255 dev_err(component->dev, "set dai format failed\n"); 256 return -EINVAL; 257 } 258 259 snd_soc_component_update_bits(component, INNO_R01, INNO_R01_I2SMODE_MSK | 260 INNO_R01_PINDIR_MSK, reg01_val); 261 snd_soc_component_update_bits(component, INNO_R02, INNO_R02_LRCP_MSK | 262 INNO_R02_DACM_MSK, reg02_val); 263 snd_soc_component_update_bits(component, INNO_R03, INNO_R03_BCP_MSK, reg03_val); 264 265 return 0; 266 } 267 268 static int rk3036_codec_dai_hw_params(struct snd_pcm_substream *substream, 269 struct snd_pcm_hw_params *hw_params, 270 struct snd_soc_dai *dai) 271 { 272 struct snd_soc_component *component = dai->component; 273 unsigned int reg02_val = 0, reg03_val = 0; 274 275 switch (params_format(hw_params)) { 276 case SNDRV_PCM_FORMAT_S16_LE: 277 reg02_val |= INNO_R02_VWL_16BIT; 278 break; 279 case SNDRV_PCM_FORMAT_S20_3LE: 280 reg02_val |= INNO_R02_VWL_20BIT; 281 break; 282 case SNDRV_PCM_FORMAT_S24_LE: 283 reg02_val |= INNO_R02_VWL_24BIT; 284 break; 285 case SNDRV_PCM_FORMAT_S32_LE: 286 reg02_val |= INNO_R02_VWL_32BIT; 287 break; 288 default: 289 return -EINVAL; 290 } 291 292 reg02_val |= INNO_R02_LRCP_NORMAL; 293 reg03_val |= INNO_R03_FWL_32BIT | INNO_R03_DACR_WORK; 294 295 snd_soc_component_update_bits(component, INNO_R02, INNO_R02_LRCP_MSK | 296 INNO_R02_VWL_MSK, reg02_val); 297 snd_soc_component_update_bits(component, INNO_R03, INNO_R03_DACR_MSK | 298 INNO_R03_FWL_MSK, reg03_val); 299 return 0; 300 } 301 302 #define RK3036_CODEC_RATES (SNDRV_PCM_RATE_8000 | \ 303 SNDRV_PCM_RATE_16000 | \ 304 SNDRV_PCM_RATE_32000 | \ 305 SNDRV_PCM_RATE_44100 | \ 306 SNDRV_PCM_RATE_48000 | \ 307 SNDRV_PCM_RATE_96000) 308 309 #define RK3036_CODEC_FMTS (SNDRV_PCM_FMTBIT_S16_LE | \ 310 SNDRV_PCM_FMTBIT_S20_3LE | \ 311 SNDRV_PCM_FMTBIT_S24_LE | \ 312 SNDRV_PCM_FMTBIT_S32_LE) 313 314 static const struct snd_soc_dai_ops rk3036_codec_dai_ops = { 315 .set_fmt = rk3036_codec_dai_set_fmt, 316 .hw_params = rk3036_codec_dai_hw_params, 317 }; 318 319 static struct snd_soc_dai_driver rk3036_codec_dai_driver[] = { 320 { 321 .name = "rk3036-codec-dai", 322 .playback = { 323 .stream_name = "Playback", 324 .channels_min = 1, 325 .channels_max = 2, 326 .rates = RK3036_CODEC_RATES, 327 .formats = RK3036_CODEC_FMTS, 328 }, 329 .ops = &rk3036_codec_dai_ops, 330 .symmetric_rates = 1, 331 }, 332 }; 333 334 static void rk3036_codec_reset(struct snd_soc_component *component) 335 { 336 snd_soc_component_write(component, INNO_R00, 337 INNO_R00_CSR_RESET | INNO_R00_CDCR_RESET); 338 snd_soc_component_write(component, INNO_R00, 339 INNO_R00_CSR_WORK | INNO_R00_CDCR_WORK); 340 } 341 342 static int rk3036_codec_probe(struct snd_soc_component *component) 343 { 344 rk3036_codec_reset(component); 345 return 0; 346 } 347 348 static void rk3036_codec_remove(struct snd_soc_component *component) 349 { 350 rk3036_codec_reset(component); 351 } 352 353 static int rk3036_codec_set_bias_level(struct snd_soc_component *component, 354 enum snd_soc_bias_level level) 355 { 356 switch (level) { 357 case SND_SOC_BIAS_STANDBY: 358 /* set a big current for capacitor charging. */ 359 snd_soc_component_write(component, INNO_R10, INNO_R10_MAX_CUR); 360 /* start precharge */ 361 snd_soc_component_write(component, INNO_R06, INNO_R06_DAC_PRECHARGE); 362 363 break; 364 365 case SND_SOC_BIAS_OFF: 366 /* set a big current for capacitor discharging. */ 367 snd_soc_component_write(component, INNO_R10, INNO_R10_MAX_CUR); 368 /* start discharge. */ 369 snd_soc_component_write(component, INNO_R06, INNO_R06_DAC_DISCHARGE); 370 371 break; 372 default: 373 break; 374 } 375 376 return 0; 377 } 378 379 static const struct snd_soc_component_driver rk3036_codec_driver = { 380 .probe = rk3036_codec_probe, 381 .remove = rk3036_codec_remove, 382 .set_bias_level = rk3036_codec_set_bias_level, 383 .controls = rk3036_codec_dapm_controls, 384 .num_controls = ARRAY_SIZE(rk3036_codec_dapm_controls), 385 .dapm_routes = rk3036_codec_dapm_routes, 386 .num_dapm_routes = ARRAY_SIZE(rk3036_codec_dapm_routes), 387 .dapm_widgets = rk3036_codec_dapm_widgets, 388 .num_dapm_widgets = ARRAY_SIZE(rk3036_codec_dapm_widgets), 389 .idle_bias_on = 1, 390 .use_pmdown_time = 1, 391 .endianness = 1, 392 .non_legacy_dai_naming = 1, 393 }; 394 395 static const struct regmap_config rk3036_codec_regmap_config = { 396 .reg_bits = 32, 397 .reg_stride = 4, 398 .val_bits = 32, 399 }; 400 401 #define GRF_SOC_CON0 0x00140 402 #define GRF_ACODEC_SEL (BIT(10) | BIT(16 + 10)) 403 404 static int rk3036_codec_platform_probe(struct platform_device *pdev) 405 { 406 struct rk3036_codec_priv *priv; 407 struct device_node *of_node = pdev->dev.of_node; 408 void __iomem *base; 409 struct regmap *grf; 410 int ret; 411 412 priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); 413 if (!priv) 414 return -ENOMEM; 415 416 base = devm_platform_ioremap_resource(pdev, 0); 417 if (IS_ERR(base)) 418 return PTR_ERR(base); 419 420 priv->base = base; 421 priv->regmap = devm_regmap_init_mmio(&pdev->dev, priv->base, 422 &rk3036_codec_regmap_config); 423 if (IS_ERR(priv->regmap)) { 424 dev_err(&pdev->dev, "init regmap failed\n"); 425 return PTR_ERR(priv->regmap); 426 } 427 428 grf = syscon_regmap_lookup_by_phandle(of_node, "rockchip,grf"); 429 if (IS_ERR(grf)) { 430 dev_err(&pdev->dev, "needs 'rockchip,grf' property\n"); 431 return PTR_ERR(grf); 432 } 433 ret = regmap_write(grf, GRF_SOC_CON0, GRF_ACODEC_SEL); 434 if (ret) { 435 dev_err(&pdev->dev, "Could not write to GRF: %d\n", ret); 436 return ret; 437 } 438 439 priv->pclk = devm_clk_get(&pdev->dev, "acodec_pclk"); 440 if (IS_ERR(priv->pclk)) 441 return PTR_ERR(priv->pclk); 442 443 ret = clk_prepare_enable(priv->pclk); 444 if (ret < 0) { 445 dev_err(&pdev->dev, "failed to enable clk\n"); 446 return ret; 447 } 448 449 priv->dev = &pdev->dev; 450 dev_set_drvdata(&pdev->dev, priv); 451 452 ret = devm_snd_soc_register_component(&pdev->dev, &rk3036_codec_driver, 453 rk3036_codec_dai_driver, 454 ARRAY_SIZE(rk3036_codec_dai_driver)); 455 if (ret) { 456 clk_disable_unprepare(priv->pclk); 457 dev_set_drvdata(&pdev->dev, NULL); 458 } 459 460 return ret; 461 } 462 463 static int rk3036_codec_platform_remove(struct platform_device *pdev) 464 { 465 struct rk3036_codec_priv *priv = dev_get_drvdata(&pdev->dev); 466 467 clk_disable_unprepare(priv->pclk); 468 469 return 0; 470 } 471 472 static const struct of_device_id rk3036_codec_of_match[] = { 473 { .compatible = "rockchip,rk3036-codec", }, 474 {} 475 }; 476 MODULE_DEVICE_TABLE(of, rk3036_codec_of_match); 477 478 static struct platform_driver rk3036_codec_platform_driver = { 479 .driver = { 480 .name = "rk3036-codec-platform", 481 .of_match_table = of_match_ptr(rk3036_codec_of_match), 482 }, 483 .probe = rk3036_codec_platform_probe, 484 .remove = rk3036_codec_platform_remove, 485 }; 486 487 module_platform_driver(rk3036_codec_platform_driver); 488 489 MODULE_AUTHOR("Rockchip Inc."); 490 MODULE_DESCRIPTION("Rockchip rk3036 codec driver"); 491 MODULE_LICENSE("GPL"); 492