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