1 /* 2 * This driver supports the digital controls for the internal codec 3 * found in Allwinner's A33 SoCs. 4 * 5 * (C) Copyright 2010-2016 6 * Reuuimlla Technology Co., Ltd. <www.reuuimllatech.com> 7 * huangxin <huangxin@Reuuimllatech.com> 8 * Mylène Josserand <mylene.josserand@free-electrons.com> 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation; either version 2 of the License, or 13 * (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 */ 20 21 #include <linux/module.h> 22 #include <linux/delay.h> 23 #include <linux/clk.h> 24 #include <linux/io.h> 25 #include <linux/pm_runtime.h> 26 #include <linux/regmap.h> 27 28 #include <sound/pcm_params.h> 29 #include <sound/soc.h> 30 #include <sound/soc-dapm.h> 31 32 #define SUN8I_SYSCLK_CTL 0x00c 33 #define SUN8I_SYSCLK_CTL_AIF1CLK_ENA 11 34 #define SUN8I_SYSCLK_CTL_AIF1CLK_SRC_PLL 9 35 #define SUN8I_SYSCLK_CTL_AIF1CLK_SRC 8 36 #define SUN8I_SYSCLK_CTL_SYSCLK_ENA 3 37 #define SUN8I_SYSCLK_CTL_SYSCLK_SRC 0 38 #define SUN8I_MOD_CLK_ENA 0x010 39 #define SUN8I_MOD_CLK_ENA_AIF1 15 40 #define SUN8I_MOD_CLK_ENA_ADC 3 41 #define SUN8I_MOD_CLK_ENA_DAC 2 42 #define SUN8I_MOD_RST_CTL 0x014 43 #define SUN8I_MOD_RST_CTL_AIF1 15 44 #define SUN8I_MOD_RST_CTL_ADC 3 45 #define SUN8I_MOD_RST_CTL_DAC 2 46 #define SUN8I_SYS_SR_CTRL 0x018 47 #define SUN8I_SYS_SR_CTRL_AIF1_FS 12 48 #define SUN8I_SYS_SR_CTRL_AIF2_FS 8 49 #define SUN8I_AIF1CLK_CTRL 0x040 50 #define SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD 15 51 #define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV 14 52 #define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV 13 53 #define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV 9 54 #define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV 6 55 #define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_16 (1 << 6) 56 #define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ 4 57 #define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_16 (1 << 4) 58 #define SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT 2 59 #define SUN8I_AIF1_ADCDAT_CTRL 0x044 60 #define SUN8I_AIF1_ADCDAT_CTRL_AIF1_DA0L_ENA 15 61 #define SUN8I_AIF1_ADCDAT_CTRL_AIF1_DA0R_ENA 14 62 #define SUN8I_AIF1_DACDAT_CTRL 0x048 63 #define SUN8I_AIF1_DACDAT_CTRL_AIF1_DA0L_ENA 15 64 #define SUN8I_AIF1_DACDAT_CTRL_AIF1_DA0R_ENA 14 65 #define SUN8I_AIF1_MXR_SRC 0x04c 66 #define SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF1DA0L 15 67 #define SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF2DACL 14 68 #define SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_ADCL 13 69 #define SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF2DACR 12 70 #define SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF1DA0R 11 71 #define SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF2DACR 10 72 #define SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_ADCR 9 73 #define SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF2DACL 8 74 #define SUN8I_ADC_DIG_CTRL 0x100 75 #define SUN8I_ADC_DIG_CTRL_ENDA 15 76 #define SUN8I_ADC_DIG_CTRL_ADOUT_DTS 2 77 #define SUN8I_ADC_DIG_CTRL_ADOUT_DLY 1 78 #define SUN8I_DAC_DIG_CTRL 0x120 79 #define SUN8I_DAC_DIG_CTRL_ENDA 15 80 #define SUN8I_DAC_MXR_SRC 0x130 81 #define SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF1DA0L 15 82 #define SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF1DA1L 14 83 #define SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF2DACL 13 84 #define SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_ADCL 12 85 #define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF1DA0R 11 86 #define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF1DA1R 10 87 #define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF2DACR 9 88 #define SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_ADCR 8 89 90 #define SUN8I_SYS_SR_CTRL_AIF1_FS_MASK GENMASK(15, 12) 91 #define SUN8I_SYS_SR_CTRL_AIF2_FS_MASK GENMASK(11, 8) 92 #define SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_MASK GENMASK(5, 4) 93 #define SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_MASK GENMASK(8, 6) 94 #define SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV_MASK GENMASK(12, 9) 95 96 struct sun8i_codec { 97 struct device *dev; 98 struct regmap *regmap; 99 struct clk *clk_module; 100 struct clk *clk_bus; 101 }; 102 103 static int sun8i_codec_runtime_resume(struct device *dev) 104 { 105 struct sun8i_codec *scodec = dev_get_drvdata(dev); 106 int ret; 107 108 ret = clk_prepare_enable(scodec->clk_module); 109 if (ret) { 110 dev_err(dev, "Failed to enable the module clock\n"); 111 return ret; 112 } 113 114 ret = clk_prepare_enable(scodec->clk_bus); 115 if (ret) { 116 dev_err(dev, "Failed to enable the bus clock\n"); 117 goto err_disable_modclk; 118 } 119 120 regcache_cache_only(scodec->regmap, false); 121 122 ret = regcache_sync(scodec->regmap); 123 if (ret) { 124 dev_err(dev, "Failed to sync regmap cache\n"); 125 goto err_disable_clk; 126 } 127 128 return 0; 129 130 err_disable_clk: 131 clk_disable_unprepare(scodec->clk_bus); 132 133 err_disable_modclk: 134 clk_disable_unprepare(scodec->clk_module); 135 136 return ret; 137 } 138 139 static int sun8i_codec_runtime_suspend(struct device *dev) 140 { 141 struct sun8i_codec *scodec = dev_get_drvdata(dev); 142 143 regcache_cache_only(scodec->regmap, true); 144 regcache_mark_dirty(scodec->regmap); 145 146 clk_disable_unprepare(scodec->clk_module); 147 clk_disable_unprepare(scodec->clk_bus); 148 149 return 0; 150 } 151 152 static int sun8i_codec_get_hw_rate(struct snd_pcm_hw_params *params) 153 { 154 unsigned int rate = params_rate(params); 155 156 switch (rate) { 157 case 8000: 158 case 7350: 159 return 0x0; 160 case 11025: 161 return 0x1; 162 case 12000: 163 return 0x2; 164 case 16000: 165 return 0x3; 166 case 22050: 167 return 0x4; 168 case 24000: 169 return 0x5; 170 case 32000: 171 return 0x6; 172 case 44100: 173 return 0x7; 174 case 48000: 175 return 0x8; 176 case 96000: 177 return 0x9; 178 case 192000: 179 return 0xa; 180 default: 181 return -EINVAL; 182 } 183 } 184 185 static int sun8i_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) 186 { 187 struct sun8i_codec *scodec = snd_soc_codec_get_drvdata(dai->codec); 188 u32 value; 189 190 /* clock masters */ 191 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 192 case SND_SOC_DAIFMT_CBS_CFS: /* Codec slave, DAI master */ 193 value = 0x1; 194 break; 195 case SND_SOC_DAIFMT_CBM_CFM: /* Codec Master, DAI slave */ 196 value = 0x0; 197 break; 198 default: 199 return -EINVAL; 200 } 201 regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL, 202 BIT(SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD), 203 value << SUN8I_AIF1CLK_CTRL_AIF1_MSTR_MOD); 204 205 /* clock inversion */ 206 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 207 case SND_SOC_DAIFMT_NB_NF: /* Normal */ 208 value = 0x0; 209 break; 210 case SND_SOC_DAIFMT_IB_IF: /* Inversion */ 211 value = 0x1; 212 break; 213 default: 214 return -EINVAL; 215 } 216 regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL, 217 BIT(SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV), 218 value << SUN8I_AIF1CLK_CTRL_AIF1_BCLK_INV); 219 220 /* 221 * It appears that the DAI and the codec don't share the same 222 * polarity for the LRCK signal when they mean 'normal' and 223 * 'inverted' in the datasheet. 224 * 225 * Since the DAI here is our regular i2s driver that have been 226 * tested with way more codecs than just this one, it means 227 * that the codec probably gets it backward, and we have to 228 * invert the value here. 229 */ 230 regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL, 231 BIT(SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV), 232 !value << SUN8I_AIF1CLK_CTRL_AIF1_LRCK_INV); 233 234 /* DAI format */ 235 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 236 case SND_SOC_DAIFMT_I2S: 237 value = 0x0; 238 break; 239 case SND_SOC_DAIFMT_LEFT_J: 240 value = 0x1; 241 break; 242 case SND_SOC_DAIFMT_RIGHT_J: 243 value = 0x2; 244 break; 245 case SND_SOC_DAIFMT_DSP_A: 246 case SND_SOC_DAIFMT_DSP_B: 247 value = 0x3; 248 break; 249 default: 250 return -EINVAL; 251 } 252 regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL, 253 BIT(SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT), 254 value << SUN8I_AIF1CLK_CTRL_AIF1_DATA_FMT); 255 256 return 0; 257 } 258 259 struct sun8i_codec_clk_div { 260 u8 div; 261 u8 val; 262 }; 263 264 static const struct sun8i_codec_clk_div sun8i_codec_bclk_div[] = { 265 { .div = 1, .val = 0 }, 266 { .div = 2, .val = 1 }, 267 { .div = 4, .val = 2 }, 268 { .div = 6, .val = 3 }, 269 { .div = 8, .val = 4 }, 270 { .div = 12, .val = 5 }, 271 { .div = 16, .val = 6 }, 272 { .div = 24, .val = 7 }, 273 { .div = 32, .val = 8 }, 274 { .div = 48, .val = 9 }, 275 { .div = 64, .val = 10 }, 276 { .div = 96, .val = 11 }, 277 { .div = 128, .val = 12 }, 278 { .div = 192, .val = 13 }, 279 }; 280 281 static u8 sun8i_codec_get_bclk_div(struct sun8i_codec *scodec, 282 unsigned int rate, 283 unsigned int word_size) 284 { 285 unsigned long clk_rate = clk_get_rate(scodec->clk_module); 286 unsigned int div = clk_rate / rate / word_size / 2; 287 unsigned int best_val = 0, best_diff = ~0; 288 int i; 289 290 for (i = 0; i < ARRAY_SIZE(sun8i_codec_bclk_div); i++) { 291 const struct sun8i_codec_clk_div *bdiv = &sun8i_codec_bclk_div[i]; 292 unsigned int diff = abs(bdiv->div - div); 293 294 if (diff < best_diff) { 295 best_diff = diff; 296 best_val = bdiv->val; 297 } 298 } 299 300 return best_val; 301 } 302 303 static int sun8i_codec_hw_params(struct snd_pcm_substream *substream, 304 struct snd_pcm_hw_params *params, 305 struct snd_soc_dai *dai) 306 { 307 struct sun8i_codec *scodec = snd_soc_codec_get_drvdata(dai->codec); 308 int sample_rate; 309 u8 bclk_div; 310 311 /* 312 * The CPU DAI handles only a sample of 16 bits. Configure the 313 * codec to handle this type of sample resolution. 314 */ 315 regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL, 316 SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_MASK, 317 SUN8I_AIF1CLK_CTRL_AIF1_WORD_SIZ_16); 318 319 bclk_div = sun8i_codec_get_bclk_div(scodec, params_rate(params), 16); 320 regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL, 321 SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV_MASK, 322 bclk_div << SUN8I_AIF1CLK_CTRL_AIF1_BCLK_DIV); 323 324 regmap_update_bits(scodec->regmap, SUN8I_AIF1CLK_CTRL, 325 SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_MASK, 326 SUN8I_AIF1CLK_CTRL_AIF1_LRCK_DIV_16); 327 328 sample_rate = sun8i_codec_get_hw_rate(params); 329 if (sample_rate < 0) 330 return sample_rate; 331 332 regmap_update_bits(scodec->regmap, SUN8I_SYS_SR_CTRL, 333 SUN8I_SYS_SR_CTRL_AIF1_FS_MASK, 334 sample_rate << SUN8I_SYS_SR_CTRL_AIF1_FS); 335 regmap_update_bits(scodec->regmap, SUN8I_SYS_SR_CTRL, 336 SUN8I_SYS_SR_CTRL_AIF2_FS_MASK, 337 sample_rate << SUN8I_SYS_SR_CTRL_AIF2_FS); 338 339 return 0; 340 } 341 342 static const struct snd_kcontrol_new sun8i_dac_mixer_controls[] = { 343 SOC_DAPM_DOUBLE("AIF1 Slot 0 Digital DAC Playback Switch", 344 SUN8I_DAC_MXR_SRC, 345 SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF1DA0L, 346 SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF1DA0R, 1, 0), 347 SOC_DAPM_DOUBLE("AIF1 Slot 1 Digital DAC Playback Switch", 348 SUN8I_DAC_MXR_SRC, 349 SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF1DA1L, 350 SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF1DA1R, 1, 0), 351 SOC_DAPM_DOUBLE("AIF2 Digital DAC Playback Switch", SUN8I_DAC_MXR_SRC, 352 SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_AIF2DACL, 353 SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_AIF2DACR, 1, 0), 354 SOC_DAPM_DOUBLE("ADC Digital DAC Playback Switch", SUN8I_DAC_MXR_SRC, 355 SUN8I_DAC_MXR_SRC_DACL_MXR_SRC_ADCL, 356 SUN8I_DAC_MXR_SRC_DACR_MXR_SRC_ADCR, 1, 0), 357 }; 358 359 static const struct snd_kcontrol_new sun8i_input_mixer_controls[] = { 360 SOC_DAPM_DOUBLE("AIF1 Slot 0 Digital ADC Capture Switch", 361 SUN8I_AIF1_MXR_SRC, 362 SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF1DA0L, 363 SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF1DA0R, 1, 0), 364 SOC_DAPM_DOUBLE("AIF2 Digital ADC Capture Switch", SUN8I_AIF1_MXR_SRC, 365 SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF2DACL, 366 SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF2DACR, 1, 0), 367 SOC_DAPM_DOUBLE("AIF1 Data Digital ADC Capture Switch", 368 SUN8I_AIF1_MXR_SRC, 369 SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_ADCL, 370 SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_ADCR, 1, 0), 371 SOC_DAPM_DOUBLE("AIF2 Inv Digital ADC Capture Switch", 372 SUN8I_AIF1_MXR_SRC, 373 SUN8I_AIF1_MXR_SRC_AD0L_MXL_SRC_AIF2DACR, 374 SUN8I_AIF1_MXR_SRC_AD0R_MXR_SRC_AIF2DACL, 1, 0), 375 }; 376 377 static const struct snd_soc_dapm_widget sun8i_codec_dapm_widgets[] = { 378 /* Digital parts of the DACs and ADC */ 379 SND_SOC_DAPM_SUPPLY("DAC", SUN8I_DAC_DIG_CTRL, SUN8I_DAC_DIG_CTRL_ENDA, 380 0, NULL, 0), 381 SND_SOC_DAPM_SUPPLY("ADC", SUN8I_ADC_DIG_CTRL, SUN8I_ADC_DIG_CTRL_ENDA, 382 0, NULL, 0), 383 384 /* Analog DAC AIF */ 385 SND_SOC_DAPM_AIF_IN("AIF1 Slot 0 Left", "Playback", 0, 386 SUN8I_AIF1_DACDAT_CTRL, 387 SUN8I_AIF1_DACDAT_CTRL_AIF1_DA0L_ENA, 0), 388 SND_SOC_DAPM_AIF_IN("AIF1 Slot 0 Right", "Playback", 0, 389 SUN8I_AIF1_DACDAT_CTRL, 390 SUN8I_AIF1_DACDAT_CTRL_AIF1_DA0R_ENA, 0), 391 392 /* Analog ADC AIF */ 393 SND_SOC_DAPM_AIF_IN("AIF1 Slot 0 Left ADC", "Capture", 0, 394 SUN8I_AIF1_ADCDAT_CTRL, 395 SUN8I_AIF1_ADCDAT_CTRL_AIF1_DA0L_ENA, 0), 396 SND_SOC_DAPM_AIF_IN("AIF1 Slot 0 Right ADC", "Capture", 0, 397 SUN8I_AIF1_ADCDAT_CTRL, 398 SUN8I_AIF1_ADCDAT_CTRL_AIF1_DA0R_ENA, 0), 399 400 /* DAC and ADC Mixers */ 401 SOC_MIXER_ARRAY("Left Digital DAC Mixer", SND_SOC_NOPM, 0, 0, 402 sun8i_dac_mixer_controls), 403 SOC_MIXER_ARRAY("Right Digital DAC Mixer", SND_SOC_NOPM, 0, 0, 404 sun8i_dac_mixer_controls), 405 SOC_MIXER_ARRAY("Left Digital ADC Mixer", SND_SOC_NOPM, 0, 0, 406 sun8i_input_mixer_controls), 407 SOC_MIXER_ARRAY("Right Digital ADC Mixer", SND_SOC_NOPM, 0, 0, 408 sun8i_input_mixer_controls), 409 410 /* Clocks */ 411 SND_SOC_DAPM_SUPPLY("MODCLK AFI1", SUN8I_MOD_CLK_ENA, 412 SUN8I_MOD_CLK_ENA_AIF1, 0, NULL, 0), 413 SND_SOC_DAPM_SUPPLY("MODCLK DAC", SUN8I_MOD_CLK_ENA, 414 SUN8I_MOD_CLK_ENA_DAC, 0, NULL, 0), 415 SND_SOC_DAPM_SUPPLY("MODCLK ADC", SUN8I_MOD_CLK_ENA, 416 SUN8I_MOD_CLK_ENA_ADC, 0, NULL, 0), 417 SND_SOC_DAPM_SUPPLY("AIF1", SUN8I_SYSCLK_CTL, 418 SUN8I_SYSCLK_CTL_AIF1CLK_ENA, 0, NULL, 0), 419 SND_SOC_DAPM_SUPPLY("SYSCLK", SUN8I_SYSCLK_CTL, 420 SUN8I_SYSCLK_CTL_SYSCLK_ENA, 0, NULL, 0), 421 422 SND_SOC_DAPM_SUPPLY("AIF1 PLL", SUN8I_SYSCLK_CTL, 423 SUN8I_SYSCLK_CTL_AIF1CLK_SRC_PLL, 0, NULL, 0), 424 /* Inversion as 0=AIF1, 1=AIF2 */ 425 SND_SOC_DAPM_SUPPLY("SYSCLK AIF1", SUN8I_SYSCLK_CTL, 426 SUN8I_SYSCLK_CTL_SYSCLK_SRC, 1, NULL, 0), 427 428 /* Module reset */ 429 SND_SOC_DAPM_SUPPLY("RST AIF1", SUN8I_MOD_RST_CTL, 430 SUN8I_MOD_RST_CTL_AIF1, 0, NULL, 0), 431 SND_SOC_DAPM_SUPPLY("RST DAC", SUN8I_MOD_RST_CTL, 432 SUN8I_MOD_RST_CTL_DAC, 0, NULL, 0), 433 SND_SOC_DAPM_SUPPLY("RST ADC", SUN8I_MOD_RST_CTL, 434 SUN8I_MOD_RST_CTL_ADC, 0, NULL, 0), 435 436 SND_SOC_DAPM_MIC("Headset Mic", NULL), 437 SND_SOC_DAPM_MIC("Mic", NULL), 438 439 }; 440 441 static const struct snd_soc_dapm_route sun8i_codec_dapm_routes[] = { 442 /* Clock Routes */ 443 { "AIF1", NULL, "SYSCLK AIF1" }, 444 { "AIF1 PLL", NULL, "AIF1" }, 445 { "RST AIF1", NULL, "AIF1 PLL" }, 446 { "MODCLK AFI1", NULL, "RST AIF1" }, 447 { "DAC", NULL, "MODCLK AFI1" }, 448 { "ADC", NULL, "MODCLK AFI1" }, 449 450 { "RST DAC", NULL, "SYSCLK" }, 451 { "MODCLK DAC", NULL, "RST DAC" }, 452 { "DAC", NULL, "MODCLK DAC" }, 453 454 { "RST ADC", NULL, "SYSCLK" }, 455 { "MODCLK ADC", NULL, "RST ADC" }, 456 { "ADC", NULL, "MODCLK ADC" }, 457 458 /* DAC Routes */ 459 { "AIF1 Slot 0 Right", NULL, "DAC" }, 460 { "AIF1 Slot 0 Left", NULL, "DAC" }, 461 462 /* DAC Mixer Routes */ 463 { "Left Digital DAC Mixer", "AIF1 Slot 0 Digital DAC Playback Switch", 464 "AIF1 Slot 0 Left"}, 465 { "Right Digital DAC Mixer", "AIF1 Slot 0 Digital DAC Playback Switch", 466 "AIF1 Slot 0 Right"}, 467 468 /* ADC routes */ 469 { "Left Digital ADC Mixer", "AIF1 Data Digital ADC Capture Switch", 470 "AIF1 Slot 0 Left ADC" }, 471 { "Right Digital ADC Mixer", "AIF1 Data Digital ADC Capture Switch", 472 "AIF1 Slot 0 Right ADC" }, 473 }; 474 475 static const struct snd_soc_dai_ops sun8i_codec_dai_ops = { 476 .hw_params = sun8i_codec_hw_params, 477 .set_fmt = sun8i_set_fmt, 478 }; 479 480 static struct snd_soc_dai_driver sun8i_codec_dai = { 481 .name = "sun8i", 482 /* playback capabilities */ 483 .playback = { 484 .stream_name = "Playback", 485 .channels_min = 1, 486 .channels_max = 2, 487 .rates = SNDRV_PCM_RATE_8000_192000, 488 .formats = SNDRV_PCM_FMTBIT_S16_LE, 489 }, 490 /* capture capabilities */ 491 .capture = { 492 .stream_name = "Capture", 493 .channels_min = 1, 494 .channels_max = 2, 495 .rates = SNDRV_PCM_RATE_8000_192000, 496 .formats = SNDRV_PCM_FMTBIT_S16_LE, 497 .sig_bits = 24, 498 }, 499 /* pcm operations */ 500 .ops = &sun8i_codec_dai_ops, 501 }; 502 503 static const struct snd_soc_codec_driver sun8i_soc_codec = { 504 .component_driver = { 505 .dapm_widgets = sun8i_codec_dapm_widgets, 506 .num_dapm_widgets = ARRAY_SIZE(sun8i_codec_dapm_widgets), 507 .dapm_routes = sun8i_codec_dapm_routes, 508 .num_dapm_routes = ARRAY_SIZE(sun8i_codec_dapm_routes), 509 }, 510 }; 511 512 static const struct regmap_config sun8i_codec_regmap_config = { 513 .reg_bits = 32, 514 .reg_stride = 4, 515 .val_bits = 32, 516 .max_register = SUN8I_DAC_MXR_SRC, 517 518 .cache_type = REGCACHE_FLAT, 519 }; 520 521 static int sun8i_codec_probe(struct platform_device *pdev) 522 { 523 struct resource *res_base; 524 struct sun8i_codec *scodec; 525 void __iomem *base; 526 int ret; 527 528 scodec = devm_kzalloc(&pdev->dev, sizeof(*scodec), GFP_KERNEL); 529 if (!scodec) 530 return -ENOMEM; 531 532 scodec->dev = &pdev->dev; 533 534 scodec->clk_module = devm_clk_get(&pdev->dev, "mod"); 535 if (IS_ERR(scodec->clk_module)) { 536 dev_err(&pdev->dev, "Failed to get the module clock\n"); 537 return PTR_ERR(scodec->clk_module); 538 } 539 540 scodec->clk_bus = devm_clk_get(&pdev->dev, "bus"); 541 if (IS_ERR(scodec->clk_bus)) { 542 dev_err(&pdev->dev, "Failed to get the bus clock\n"); 543 return PTR_ERR(scodec->clk_bus); 544 } 545 546 res_base = platform_get_resource(pdev, IORESOURCE_MEM, 0); 547 base = devm_ioremap_resource(&pdev->dev, res_base); 548 if (IS_ERR(base)) { 549 dev_err(&pdev->dev, "Failed to map the registers\n"); 550 return PTR_ERR(base); 551 } 552 553 scodec->regmap = devm_regmap_init_mmio(&pdev->dev, base, 554 &sun8i_codec_regmap_config); 555 if (IS_ERR(scodec->regmap)) { 556 dev_err(&pdev->dev, "Failed to create our regmap\n"); 557 return PTR_ERR(scodec->regmap); 558 } 559 560 platform_set_drvdata(pdev, scodec); 561 562 pm_runtime_enable(&pdev->dev); 563 if (!pm_runtime_enabled(&pdev->dev)) { 564 ret = sun8i_codec_runtime_resume(&pdev->dev); 565 if (ret) 566 goto err_pm_disable; 567 } 568 569 ret = snd_soc_register_codec(&pdev->dev, &sun8i_soc_codec, 570 &sun8i_codec_dai, 1); 571 if (ret) { 572 dev_err(&pdev->dev, "Failed to register codec\n"); 573 goto err_suspend; 574 } 575 576 return ret; 577 578 err_suspend: 579 if (!pm_runtime_status_suspended(&pdev->dev)) 580 sun8i_codec_runtime_suspend(&pdev->dev); 581 582 err_pm_disable: 583 pm_runtime_disable(&pdev->dev); 584 585 return ret; 586 } 587 588 static int sun8i_codec_remove(struct platform_device *pdev) 589 { 590 struct snd_soc_card *card = platform_get_drvdata(pdev); 591 struct sun8i_codec *scodec = snd_soc_card_get_drvdata(card); 592 593 pm_runtime_disable(&pdev->dev); 594 if (!pm_runtime_status_suspended(&pdev->dev)) 595 sun8i_codec_runtime_suspend(&pdev->dev); 596 597 snd_soc_unregister_codec(&pdev->dev); 598 clk_disable_unprepare(scodec->clk_module); 599 clk_disable_unprepare(scodec->clk_bus); 600 601 return 0; 602 } 603 604 static const struct of_device_id sun8i_codec_of_match[] = { 605 { .compatible = "allwinner,sun8i-a33-codec" }, 606 {} 607 }; 608 MODULE_DEVICE_TABLE(of, sun8i_codec_of_match); 609 610 static const struct dev_pm_ops sun8i_codec_pm_ops = { 611 SET_RUNTIME_PM_OPS(sun8i_codec_runtime_suspend, 612 sun8i_codec_runtime_resume, NULL) 613 }; 614 615 static struct platform_driver sun8i_codec_driver = { 616 .driver = { 617 .name = "sun8i-codec", 618 .of_match_table = sun8i_codec_of_match, 619 .pm = &sun8i_codec_pm_ops, 620 }, 621 .probe = sun8i_codec_probe, 622 .remove = sun8i_codec_remove, 623 }; 624 module_platform_driver(sun8i_codec_driver); 625 626 MODULE_DESCRIPTION("Allwinner A33 (sun8i) codec driver"); 627 MODULE_AUTHOR("Mylène Josserand <mylene.josserand@free-electrons.com>"); 628 MODULE_LICENSE("GPL"); 629 MODULE_ALIAS("platform:sun8i-codec"); 630