1 // SPDX-License-Identifier: GPL-2.0 2 // 3 // rt1016.c -- RT1016 ALSA SoC audio amplifier driver 4 // 5 // Copyright 2020 Realtek Semiconductor Corp. 6 // Author: Oder Chiou <oder_chiou@realtek.com> 7 // 8 9 #include <linux/fs.h> 10 #include <linux/module.h> 11 #include <linux/moduleparam.h> 12 #include <linux/init.h> 13 #include <linux/delay.h> 14 #include <linux/pm.h> 15 #include <linux/regmap.h> 16 #include <linux/i2c.h> 17 #include <linux/platform_device.h> 18 #include <linux/firmware.h> 19 #include <linux/gpio.h> 20 #include <sound/core.h> 21 #include <sound/pcm.h> 22 #include <sound/pcm_params.h> 23 #include <sound/soc.h> 24 #include <sound/soc-dapm.h> 25 #include <sound/initval.h> 26 #include <sound/tlv.h> 27 28 #include "rl6231.h" 29 #include "rt1016.h" 30 31 static const struct reg_sequence rt1016_patch[] = { 32 {RT1016_VOL_CTRL_3, 0x8900}, 33 {RT1016_ANA_CTRL_1, 0xa002}, 34 {RT1016_ANA_CTRL_2, 0x0002}, 35 {RT1016_CLOCK_4, 0x6700}, 36 {RT1016_CLASSD_3, 0xdc55}, 37 {RT1016_CLASSD_4, 0x376a}, 38 {RT1016_CLASSD_5, 0x009f}, 39 }; 40 41 static const struct reg_default rt1016_reg[] = { 42 {0x00, 0x0000}, 43 {0x01, 0x5400}, 44 {0x02, 0x5506}, 45 {0x03, 0xf800}, 46 {0x04, 0x0000}, 47 {0x05, 0xbfbf}, 48 {0x06, 0x8900}, 49 {0x07, 0xa002}, 50 {0x08, 0x0000}, 51 {0x09, 0x0000}, 52 {0x0a, 0x0000}, 53 {0x0c, 0x0000}, 54 {0x0d, 0x0000}, 55 {0x0e, 0x10ec}, 56 {0x0f, 0x6595}, 57 {0x11, 0x0002}, 58 {0x1c, 0x0000}, 59 {0x1d, 0x0000}, 60 {0x1e, 0x0000}, 61 {0x1f, 0xf000}, 62 {0x20, 0x0000}, 63 {0x21, 0x6000}, 64 {0x22, 0x0000}, 65 {0x23, 0x6700}, 66 {0x24, 0x0000}, 67 {0x25, 0x0000}, 68 {0x26, 0x0000}, 69 {0x40, 0x0018}, 70 {0x60, 0x00a5}, 71 {0x80, 0x0010}, 72 {0x81, 0x0009}, 73 {0x82, 0x0000}, 74 {0x83, 0x0000}, 75 {0xa0, 0x0700}, 76 {0xc0, 0x0080}, 77 {0xc1, 0x02a0}, 78 {0xc2, 0x1400}, 79 {0xc3, 0x0a4a}, 80 {0xc4, 0x552a}, 81 {0xc5, 0x087e}, 82 {0xc6, 0x0020}, 83 {0xc7, 0xa833}, 84 {0xc8, 0x0433}, 85 {0xc9, 0x8040}, 86 {0xca, 0xdc55}, 87 {0xcb, 0x376a}, 88 {0xcc, 0x009f}, 89 {0xcf, 0x0020}, 90 }; 91 92 static bool rt1016_volatile_register(struct device *dev, unsigned int reg) 93 { 94 switch (reg) { 95 case RT1016_ANA_FLAG: 96 case RT1016_VERSION2_ID: 97 case RT1016_VERSION1_ID: 98 case RT1016_VENDER_ID: 99 case RT1016_DEVICE_ID: 100 case RT1016_TEST_SIGNAL: 101 case RT1016_SC_CTRL_1: 102 return true; 103 104 default: 105 return false; 106 } 107 } 108 109 static bool rt1016_readable_register(struct device *dev, unsigned int reg) 110 { 111 switch (reg) { 112 case RT1016_RESET: 113 case RT1016_PADS_CTRL_1: 114 case RT1016_PADS_CTRL_2: 115 case RT1016_I2C_CTRL: 116 case RT1016_VOL_CTRL_1: 117 case RT1016_VOL_CTRL_2: 118 case RT1016_VOL_CTRL_3: 119 case RT1016_ANA_CTRL_1: 120 case RT1016_MUX_SEL: 121 case RT1016_RX_I2S_CTRL: 122 case RT1016_ANA_FLAG: 123 case RT1016_VERSION2_ID: 124 case RT1016_VERSION1_ID: 125 case RT1016_VENDER_ID: 126 case RT1016_DEVICE_ID: 127 case RT1016_ANA_CTRL_2: 128 case RT1016_TEST_SIGNAL: 129 case RT1016_TEST_CTRL_1: 130 case RT1016_TEST_CTRL_2: 131 case RT1016_TEST_CTRL_3: 132 case RT1016_CLOCK_1: 133 case RT1016_CLOCK_2: 134 case RT1016_CLOCK_3: 135 case RT1016_CLOCK_4: 136 case RT1016_CLOCK_5: 137 case RT1016_CLOCK_6: 138 case RT1016_CLOCK_7: 139 case RT1016_I2S_CTRL: 140 case RT1016_DAC_CTRL_1: 141 case RT1016_SC_CTRL_1: 142 case RT1016_SC_CTRL_2: 143 case RT1016_SC_CTRL_3: 144 case RT1016_SC_CTRL_4: 145 case RT1016_SIL_DET: 146 case RT1016_SYS_CLK: 147 case RT1016_BIAS_CUR: 148 case RT1016_DAC_CTRL_2: 149 case RT1016_LDO_CTRL: 150 case RT1016_CLASSD_1: 151 case RT1016_PLL1: 152 case RT1016_PLL2: 153 case RT1016_PLL3: 154 case RT1016_CLASSD_2: 155 case RT1016_CLASSD_OUT: 156 case RT1016_CLASSD_3: 157 case RT1016_CLASSD_4: 158 case RT1016_CLASSD_5: 159 case RT1016_PWR_CTRL: 160 return true; 161 162 default: 163 return false; 164 } 165 } 166 167 static const DECLARE_TLV_DB_SCALE(dac_vol_tlv, -9550, 50, 0); 168 169 static const struct snd_kcontrol_new rt1016_snd_controls[] = { 170 SOC_DOUBLE_TLV("DAC Playback Volume", RT1016_VOL_CTRL_2, 171 RT1016_L_VOL_SFT, RT1016_R_VOL_SFT, 191, 0, dac_vol_tlv), 172 SOC_DOUBLE("DAC Playback Switch", RT1016_VOL_CTRL_1, 173 RT1016_DA_MUTE_L_SFT, RT1016_DA_MUTE_R_SFT, 1, 1), 174 }; 175 176 static int rt1016_is_sys_clk_from_pll(struct snd_soc_dapm_widget *source, 177 struct snd_soc_dapm_widget *sink) 178 { 179 struct snd_soc_component *component = 180 snd_soc_dapm_to_component(source->dapm); 181 struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component); 182 183 if (rt1016->sysclk_src == RT1016_SCLK_S_PLL) 184 return 1; 185 else 186 return 0; 187 } 188 189 /* Interface data select */ 190 static const char * const rt1016_data_select[] = { 191 "L/R", "R/L", "L/L", "R/R" 192 }; 193 194 static SOC_ENUM_SINGLE_DECL(rt1016_if_data_swap_enum, 195 RT1016_I2S_CTRL, RT1016_I2S_DATA_SWAP_SFT, rt1016_data_select); 196 197 static const struct snd_kcontrol_new rt1016_if_data_swap_mux = 198 SOC_DAPM_ENUM("Data Swap Mux", rt1016_if_data_swap_enum); 199 200 static const struct snd_soc_dapm_widget rt1016_dapm_widgets[] = { 201 SND_SOC_DAPM_MUX("Data Swap Mux", SND_SOC_NOPM, 0, 0, 202 &rt1016_if_data_swap_mux), 203 204 SND_SOC_DAPM_SUPPLY("DAC Filter", RT1016_CLOCK_3, 205 RT1016_PWR_DAC_FILTER_BIT, 0, NULL, 0), 206 SND_SOC_DAPM_SUPPLY("DAMOD", RT1016_CLOCK_3, RT1016_PWR_DACMOD_BIT, 0, 207 NULL, 0), 208 SND_SOC_DAPM_SUPPLY("FIFO", RT1016_CLOCK_3, RT1016_PWR_CLK_FIFO_BIT, 0, 209 NULL, 0), 210 SND_SOC_DAPM_SUPPLY("Pure DC", RT1016_CLOCK_3, 211 RT1016_PWR_CLK_PUREDC_BIT, 0, NULL, 0), 212 SND_SOC_DAPM_SUPPLY("CLK Silence Det", RT1016_CLOCK_3, 213 RT1016_PWR_SIL_DET_BIT, 0, NULL, 0), 214 SND_SOC_DAPM_SUPPLY("RC 25M", RT1016_CLOCK_3, RT1016_PWR_RC_25M_BIT, 0, 215 NULL, 0), 216 SND_SOC_DAPM_SUPPLY("PLL1", RT1016_CLOCK_3, RT1016_PWR_PLL1_BIT, 0, 217 NULL, 0), 218 SND_SOC_DAPM_SUPPLY("ANA CTRL", RT1016_CLOCK_3, RT1016_PWR_ANA_CTRL_BIT, 219 0, NULL, 0), 220 SND_SOC_DAPM_SUPPLY("CLK SYS", RT1016_CLOCK_3, RT1016_PWR_CLK_SYS_BIT, 221 0, NULL, 0), 222 223 SND_SOC_DAPM_SUPPLY("LRCK Det", RT1016_CLOCK_4, RT1016_PWR_LRCK_DET_BIT, 224 0, NULL, 0), 225 SND_SOC_DAPM_SUPPLY("BCLK Det", RT1016_CLOCK_4, RT1016_PWR_BCLK_DET_BIT, 226 0, NULL, 0), 227 228 SND_SOC_DAPM_SUPPLY("CKGEN DAC", RT1016_DAC_CTRL_2, 229 RT1016_CKGEN_DAC_BIT, 0, NULL, 0), 230 SND_SOC_DAPM_SUPPLY("VCM SLOW", RT1016_CLASSD_1, RT1016_VCM_SLOW_BIT, 0, 231 NULL, 0), 232 SND_SOC_DAPM_SUPPLY("Silence Det", RT1016_SIL_DET, 233 RT1016_SIL_DET_EN_BIT, 0, NULL, 0), 234 SND_SOC_DAPM_SUPPLY("PLL2", RT1016_PLL2, RT1016_PLL2_EN_BIT, 0, NULL, 235 0), 236 237 SND_SOC_DAPM_SUPPLY_S("BG1 BG2", 1, RT1016_PWR_CTRL, 238 RT1016_PWR_BG_1_2_BIT, 0, NULL, 0), 239 SND_SOC_DAPM_SUPPLY_S("MBIAS BG", 1, RT1016_PWR_CTRL, 240 RT1016_PWR_MBIAS_BG_BIT, 0, NULL, 0), 241 SND_SOC_DAPM_SUPPLY_S("PLL", 1, RT1016_PWR_CTRL, RT1016_PWR_PLL_BIT, 0, 242 NULL, 0), 243 SND_SOC_DAPM_SUPPLY_S("BASIC", 1, RT1016_PWR_CTRL, RT1016_PWR_BASIC_BIT, 244 0, NULL, 0), 245 SND_SOC_DAPM_SUPPLY_S("CLASS D", 1, RT1016_PWR_CTRL, 246 RT1016_PWR_CLSD_BIT, 0, NULL, 0), 247 SND_SOC_DAPM_SUPPLY_S("25M", 1, RT1016_PWR_CTRL, RT1016_PWR_25M_BIT, 0, 248 NULL, 0), 249 SND_SOC_DAPM_SUPPLY_S("DACL", 1, RT1016_PWR_CTRL, RT1016_PWR_DACL_BIT, 250 0, NULL, 0), 251 SND_SOC_DAPM_SUPPLY_S("DACR", 1, RT1016_PWR_CTRL, RT1016_PWR_DACR_BIT, 252 0, NULL, 0), 253 SND_SOC_DAPM_SUPPLY_S("LDO2", 1, RT1016_PWR_CTRL, RT1016_PWR_LDO2_BIT, 254 0, NULL, 0), 255 SND_SOC_DAPM_SUPPLY_S("VREF", 1, RT1016_PWR_CTRL, RT1016_PWR_VREF_BIT, 256 0, NULL, 0), 257 SND_SOC_DAPM_SUPPLY_S("MBIAS", 1, RT1016_PWR_CTRL, RT1016_PWR_MBIAS_BIT, 258 0, NULL, 0), 259 260 SND_SOC_DAPM_AIF_IN("AIFRX", "AIF Playback", 0, SND_SOC_NOPM, 0, 0), 261 SND_SOC_DAPM_DAC("DAC", NULL, SND_SOC_NOPM, 0, 0), 262 263 SND_SOC_DAPM_OUTPUT("SPO"), 264 }; 265 266 static const struct snd_soc_dapm_route rt1016_dapm_routes[] = { 267 { "Data Swap Mux", "L/R", "AIFRX" }, 268 { "Data Swap Mux", "R/L", "AIFRX" }, 269 { "Data Swap Mux", "L/L", "AIFRX" }, 270 { "Data Swap Mux", "R/R", "AIFRX" }, 271 272 { "DAC", NULL, "DAC Filter" }, 273 { "DAC", NULL, "DAMOD" }, 274 { "DAC", NULL, "FIFO" }, 275 { "DAC", NULL, "Pure DC" }, 276 { "DAC", NULL, "Silence Det" }, 277 { "DAC", NULL, "ANA CTRL" }, 278 { "DAC", NULL, "CLK SYS" }, 279 { "DAC", NULL, "LRCK Det" }, 280 { "DAC", NULL, "BCLK Det" }, 281 { "DAC", NULL, "CKGEN DAC" }, 282 { "DAC", NULL, "VCM SLOW" }, 283 284 { "PLL", NULL, "PLL1" }, 285 { "PLL", NULL, "PLL2" }, 286 { "25M", NULL, "RC 25M" }, 287 { "Silence Det", NULL, "CLK Silence Det" }, 288 289 { "DAC", NULL, "Data Swap Mux" }, 290 { "DAC", NULL, "BG1 BG2" }, 291 { "DAC", NULL, "MBIAS BG" }, 292 { "DAC", NULL, "PLL", rt1016_is_sys_clk_from_pll}, 293 { "DAC", NULL, "BASIC" }, 294 { "DAC", NULL, "CLASS D" }, 295 { "DAC", NULL, "25M" }, 296 { "DAC", NULL, "DACL" }, 297 { "DAC", NULL, "DACR" }, 298 { "DAC", NULL, "LDO2" }, 299 { "DAC", NULL, "VREF" }, 300 { "DAC", NULL, "MBIAS" }, 301 302 { "SPO", NULL, "DAC" }, 303 }; 304 305 static int rt1016_hw_params(struct snd_pcm_substream *substream, 306 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) 307 { 308 struct snd_soc_component *component = dai->component; 309 struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component); 310 int pre_div, bclk_ms, frame_size; 311 unsigned int val_len = 0; 312 313 rt1016->lrck = params_rate(params); 314 pre_div = rl6231_get_clk_info(rt1016->sysclk, rt1016->lrck); 315 if (pre_div < 0) { 316 dev_err(component->dev, "Unsupported clock rate\n"); 317 return -EINVAL; 318 } 319 320 frame_size = snd_soc_params_to_frame_size(params); 321 if (frame_size < 0) { 322 dev_err(component->dev, "Unsupported frame size: %d\n", 323 frame_size); 324 return -EINVAL; 325 } 326 327 bclk_ms = frame_size > 32; 328 rt1016->bclk = rt1016->lrck * (32 << bclk_ms); 329 330 if (bclk_ms && rt1016->master) 331 snd_soc_component_update_bits(component, RT1016_I2S_CTRL, 332 RT1016_I2S_BCLK_MS_MASK, RT1016_I2S_BCLK_MS_64); 333 334 dev_dbg(component->dev, "lrck is %dHz and pre_div is %d for iis %d\n", 335 rt1016->lrck, pre_div, dai->id); 336 337 switch (params_width(params)) { 338 case 16: 339 val_len = RT1016_I2S_DL_16; 340 break; 341 case 20: 342 val_len = RT1016_I2S_DL_20; 343 break; 344 case 24: 345 val_len = RT1016_I2S_DL_24; 346 break; 347 case 32: 348 val_len = RT1016_I2S_DL_32; 349 break; 350 default: 351 return -EINVAL; 352 } 353 354 snd_soc_component_update_bits(component, RT1016_I2S_CTRL, 355 RT1016_I2S_DL_MASK, val_len); 356 snd_soc_component_update_bits(component, RT1016_CLOCK_2, 357 RT1016_FS_PD_MASK | RT1016_OSR_PD_MASK, 358 ((pre_div + 3) << RT1016_FS_PD_SFT) | 359 (pre_div << RT1016_OSR_PD_SFT)); 360 361 return 0; 362 } 363 364 static int rt1016_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) 365 { 366 struct snd_soc_component *component = dai->component; 367 struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component); 368 unsigned int reg_val = 0; 369 370 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 371 case SND_SOC_DAIFMT_CBM_CFM: 372 reg_val |= RT1016_I2S_MS_M; 373 rt1016->master = 1; 374 break; 375 case SND_SOC_DAIFMT_CBS_CFS: 376 reg_val |= RT1016_I2S_MS_S; 377 break; 378 default: 379 return -EINVAL; 380 } 381 382 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 383 case SND_SOC_DAIFMT_NB_NF: 384 break; 385 case SND_SOC_DAIFMT_IB_NF: 386 reg_val |= RT1016_I2S_BCLK_POL_INV; 387 break; 388 default: 389 return -EINVAL; 390 } 391 392 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 393 case SND_SOC_DAIFMT_I2S: 394 break; 395 396 case SND_SOC_DAIFMT_LEFT_J: 397 reg_val |= RT1016_I2S_DF_LEFT; 398 break; 399 400 case SND_SOC_DAIFMT_DSP_A: 401 reg_val |= RT1016_I2S_DF_PCM_A; 402 break; 403 404 case SND_SOC_DAIFMT_DSP_B: 405 reg_val |= RT1016_I2S_DF_PCM_B; 406 break; 407 408 default: 409 return -EINVAL; 410 } 411 412 snd_soc_component_update_bits(component, RT1016_I2S_CTRL, 413 RT1016_I2S_MS_MASK | RT1016_I2S_BCLK_POL_MASK | 414 RT1016_I2S_DF_MASK, reg_val); 415 416 return 0; 417 } 418 419 static int rt1016_set_component_sysclk(struct snd_soc_component *component, 420 int clk_id, int source, unsigned int freq, int dir) 421 { 422 struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component); 423 unsigned int reg_val = 0; 424 425 if (freq == rt1016->sysclk && clk_id == rt1016->sysclk_src) 426 return 0; 427 428 switch (clk_id) { 429 case RT1016_SCLK_S_MCLK: 430 reg_val |= RT1016_CLK_SYS_SEL_MCLK; 431 break; 432 433 case RT1016_SCLK_S_PLL: 434 reg_val |= RT1016_CLK_SYS_SEL_PLL; 435 break; 436 437 default: 438 dev_err(component->dev, "Invalid clock id (%d)\n", clk_id); 439 return -EINVAL; 440 } 441 442 rt1016->sysclk = freq; 443 rt1016->sysclk_src = clk_id; 444 445 dev_dbg(component->dev, "Sysclk is %dHz and clock id is %d\n", 446 freq, clk_id); 447 448 snd_soc_component_update_bits(component, RT1016_CLOCK_1, 449 RT1016_CLK_SYS_SEL_MASK, reg_val); 450 451 return 0; 452 } 453 454 static int rt1016_set_component_pll(struct snd_soc_component *component, 455 int pll_id, int source, unsigned int freq_in, 456 unsigned int freq_out) 457 { 458 struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component); 459 struct rl6231_pll_code pll_code; 460 int ret; 461 462 if (!freq_in || !freq_out) { 463 dev_dbg(component->dev, "PLL disabled\n"); 464 465 rt1016->pll_in = 0; 466 rt1016->pll_out = 0; 467 468 return 0; 469 } 470 471 if (source == rt1016->pll_src && freq_in == rt1016->pll_in && 472 freq_out == rt1016->pll_out) 473 return 0; 474 475 switch (source) { 476 case RT1016_PLL_S_MCLK: 477 snd_soc_component_update_bits(component, RT1016_CLOCK_1, 478 RT1016_PLL_SEL_MASK, RT1016_PLL_SEL_MCLK); 479 break; 480 481 case RT1016_PLL_S_BCLK: 482 snd_soc_component_update_bits(component, RT1016_CLOCK_1, 483 RT1016_PLL_SEL_MASK, RT1016_PLL_SEL_BCLK); 484 break; 485 486 default: 487 dev_err(component->dev, "Unknown PLL Source %d\n", source); 488 return -EINVAL; 489 } 490 491 ret = rl6231_pll_calc(freq_in, freq_out * 4, &pll_code); 492 if (ret < 0) { 493 dev_err(component->dev, "Unsupported input clock %d\n", freq_in); 494 return ret; 495 } 496 497 dev_dbg(component->dev, "mbypass=%d m=%d n=%d kbypass=%d k=%d\n", 498 pll_code.m_bp, (pll_code.m_bp ? 0 : pll_code.m_code), 499 pll_code.n_code, pll_code.k_bp, 500 (pll_code.k_bp ? 0 : pll_code.k_code)); 501 502 snd_soc_component_write(component, RT1016_PLL1, 503 ((pll_code.m_bp ? 0 : pll_code.m_code) << RT1016_PLL_M_SFT) | 504 (pll_code.m_bp << RT1016_PLL_M_BP_SFT) | 505 pll_code.n_code); 506 snd_soc_component_write(component, RT1016_PLL2, 507 (pll_code.k_bp << RT1016_PLL_K_BP_SFT) | 508 (pll_code.k_bp ? 0 : pll_code.k_code)); 509 510 rt1016->pll_in = freq_in; 511 rt1016->pll_out = freq_out; 512 rt1016->pll_src = source; 513 514 return 0; 515 } 516 517 static int rt1016_probe(struct snd_soc_component *component) 518 { 519 struct rt1016_priv *rt1016 = 520 snd_soc_component_get_drvdata(component); 521 522 rt1016->component = component; 523 524 return 0; 525 } 526 527 static void rt1016_remove(struct snd_soc_component *component) 528 { 529 struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component); 530 531 regmap_write(rt1016->regmap, RT1016_RESET, 0); 532 } 533 534 #define RT1016_STEREO_RATES SNDRV_PCM_RATE_8000_48000 535 #define RT1016_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ 536 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S8) 537 538 static const struct snd_soc_dai_ops rt1016_aif_dai_ops = { 539 .hw_params = rt1016_hw_params, 540 .set_fmt = rt1016_set_dai_fmt, 541 }; 542 543 static struct snd_soc_dai_driver rt1016_dai[] = { 544 { 545 .name = "rt1016-aif", 546 .id = 0, 547 .playback = { 548 .stream_name = "AIF Playback", 549 .channels_min = 1, 550 .channels_max = 2, 551 .rates = RT1016_STEREO_RATES, 552 .formats = RT1016_FORMATS, 553 }, 554 .ops = &rt1016_aif_dai_ops, 555 } 556 }; 557 558 #ifdef CONFIG_PM 559 static int rt1016_suspend(struct snd_soc_component *component) 560 { 561 struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component); 562 563 regcache_cache_only(rt1016->regmap, true); 564 regcache_mark_dirty(rt1016->regmap); 565 566 return 0; 567 } 568 569 static int rt1016_resume(struct snd_soc_component *component) 570 { 571 struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component); 572 573 regcache_cache_only(rt1016->regmap, false); 574 regcache_sync(rt1016->regmap); 575 576 return 0; 577 } 578 #else 579 #define rt1016_suspend NULL 580 #define rt1016_resume NULL 581 #endif 582 583 static const struct snd_soc_component_driver soc_component_dev_rt1016 = { 584 .probe = rt1016_probe, 585 .remove = rt1016_remove, 586 .suspend = rt1016_suspend, 587 .resume = rt1016_resume, 588 .controls = rt1016_snd_controls, 589 .num_controls = ARRAY_SIZE(rt1016_snd_controls), 590 .dapm_widgets = rt1016_dapm_widgets, 591 .num_dapm_widgets = ARRAY_SIZE(rt1016_dapm_widgets), 592 .dapm_routes = rt1016_dapm_routes, 593 .num_dapm_routes = ARRAY_SIZE(rt1016_dapm_routes), 594 .set_sysclk = rt1016_set_component_sysclk, 595 .set_pll = rt1016_set_component_pll, 596 .use_pmdown_time = 1, 597 .endianness = 1, 598 }; 599 600 static const struct regmap_config rt1016_regmap = { 601 .reg_bits = 8, 602 .val_bits = 16, 603 .max_register = RT1016_PWR_CTRL, 604 .volatile_reg = rt1016_volatile_register, 605 .readable_reg = rt1016_readable_register, 606 .cache_type = REGCACHE_RBTREE, 607 .reg_defaults = rt1016_reg, 608 .num_reg_defaults = ARRAY_SIZE(rt1016_reg), 609 }; 610 611 static const struct i2c_device_id rt1016_i2c_id[] = { 612 { "rt1016", 0 }, 613 { } 614 }; 615 MODULE_DEVICE_TABLE(i2c, rt1016_i2c_id); 616 617 #if defined(CONFIG_OF) 618 static const struct of_device_id rt1016_of_match[] = { 619 { .compatible = "realtek,rt1016", }, 620 {}, 621 }; 622 MODULE_DEVICE_TABLE(of, rt1016_of_match); 623 #endif 624 625 #ifdef CONFIG_ACPI 626 static const struct acpi_device_id rt1016_acpi_match[] = { 627 {"10EC1016", 0,}, 628 {}, 629 }; 630 MODULE_DEVICE_TABLE(acpi, rt1016_acpi_match); 631 #endif 632 633 static int rt1016_i2c_probe(struct i2c_client *i2c) 634 { 635 struct rt1016_priv *rt1016; 636 int ret; 637 unsigned int val; 638 639 rt1016 = devm_kzalloc(&i2c->dev, sizeof(struct rt1016_priv), 640 GFP_KERNEL); 641 if (rt1016 == NULL) 642 return -ENOMEM; 643 644 i2c_set_clientdata(i2c, rt1016); 645 646 rt1016->regmap = devm_regmap_init_i2c(i2c, &rt1016_regmap); 647 if (IS_ERR(rt1016->regmap)) { 648 ret = PTR_ERR(rt1016->regmap); 649 dev_err(&i2c->dev, "Failed to allocate register map: %d\n", 650 ret); 651 return ret; 652 } 653 654 regmap_read(rt1016->regmap, RT1016_DEVICE_ID, &val); 655 if (val != RT1016_DEVICE_ID_VAL) { 656 dev_err(&i2c->dev, 657 "Device with ID register %x is not rt1016\n", val); 658 return -ENODEV; 659 } 660 661 regmap_write(rt1016->regmap, RT1016_RESET, 0); 662 663 ret = regmap_register_patch(rt1016->regmap, rt1016_patch, 664 ARRAY_SIZE(rt1016_patch)); 665 if (ret != 0) 666 dev_warn(&i2c->dev, "Failed to apply regmap patch: %d\n", ret); 667 668 return devm_snd_soc_register_component(&i2c->dev, 669 &soc_component_dev_rt1016, 670 rt1016_dai, ARRAY_SIZE(rt1016_dai)); 671 } 672 673 static void rt1016_i2c_shutdown(struct i2c_client *client) 674 { 675 struct rt1016_priv *rt1016 = i2c_get_clientdata(client); 676 677 regmap_write(rt1016->regmap, RT1016_RESET, 0); 678 } 679 680 static struct i2c_driver rt1016_i2c_driver = { 681 .driver = { 682 .name = "rt1016", 683 .of_match_table = of_match_ptr(rt1016_of_match), 684 .acpi_match_table = ACPI_PTR(rt1016_acpi_match), 685 }, 686 .probe_new = rt1016_i2c_probe, 687 .shutdown = rt1016_i2c_shutdown, 688 .id_table = rt1016_i2c_id, 689 }; 690 module_i2c_driver(rt1016_i2c_driver); 691 692 MODULE_DESCRIPTION("ASoC RT1016 driver"); 693 MODULE_AUTHOR("Oder Chiou <oder_chiou@realtek.com>"); 694 MODULE_LICENSE("GPL v2"); 695