1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * ALSA SoC WM9090 driver 4 * 5 * Copyright 2009-12 Wolfson Microelectronics 6 * 7 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> 8 */ 9 10 #include <linux/module.h> 11 #include <linux/errno.h> 12 #include <linux/device.h> 13 #include <linux/i2c.h> 14 #include <linux/delay.h> 15 #include <linux/regmap.h> 16 #include <linux/slab.h> 17 #include <sound/initval.h> 18 #include <sound/soc.h> 19 #include <sound/tlv.h> 20 #include <sound/wm9090.h> 21 22 #include "wm9090.h" 23 24 static const struct reg_default wm9090_reg_defaults[] = { 25 { 1, 0x0006 }, /* R1 - Power Management (1) */ 26 { 2, 0x6000 }, /* R2 - Power Management (2) */ 27 { 3, 0x0000 }, /* R3 - Power Management (3) */ 28 { 6, 0x01C0 }, /* R6 - Clocking 1 */ 29 { 22, 0x0003 }, /* R22 - IN1 Line Control */ 30 { 23, 0x0003 }, /* R23 - IN2 Line Control */ 31 { 24, 0x0083 }, /* R24 - IN1 Line Input A Volume */ 32 { 25, 0x0083 }, /* R25 - IN1 Line Input B Volume */ 33 { 26, 0x0083 }, /* R26 - IN2 Line Input A Volume */ 34 { 27, 0x0083 }, /* R27 - IN2 Line Input B Volume */ 35 { 28, 0x002D }, /* R28 - Left Output Volume */ 36 { 29, 0x002D }, /* R29 - Right Output Volume */ 37 { 34, 0x0100 }, /* R34 - SPKMIXL Attenuation */ 38 { 35, 0x0010 }, /* R36 - SPKOUT Mixers */ 39 { 37, 0x0140 }, /* R37 - ClassD3 */ 40 { 38, 0x0039 }, /* R38 - Speaker Volume Left */ 41 { 45, 0x0000 }, /* R45 - Output Mixer1 */ 42 { 46, 0x0000 }, /* R46 - Output Mixer2 */ 43 { 47, 0x0100 }, /* R47 - Output Mixer3 */ 44 { 48, 0x0100 }, /* R48 - Output Mixer4 */ 45 { 54, 0x0000 }, /* R54 - Speaker Mixer */ 46 { 57, 0x000D }, /* R57 - AntiPOP2 */ 47 { 70, 0x0000 }, /* R70 - Write Sequencer 0 */ 48 { 71, 0x0000 }, /* R71 - Write Sequencer 1 */ 49 { 72, 0x0000 }, /* R72 - Write Sequencer 2 */ 50 { 73, 0x0000 }, /* R73 - Write Sequencer 3 */ 51 { 74, 0x0000 }, /* R74 - Write Sequencer 4 */ 52 { 75, 0x0000 }, /* R75 - Write Sequencer 5 */ 53 { 76, 0x1F25 }, /* R76 - Charge Pump 1 */ 54 { 85, 0x054A }, /* R85 - DC Servo 1 */ 55 { 87, 0x0000 }, /* R87 - DC Servo 3 */ 56 { 96, 0x0100 }, /* R96 - Analogue HP 0 */ 57 { 98, 0x8640 }, /* R98 - AGC Control 0 */ 58 { 99, 0xC000 }, /* R99 - AGC Control 1 */ 59 { 100, 0x0200 }, /* R100 - AGC Control 2 */ 60 }; 61 62 /* This struct is used to save the context */ 63 struct wm9090_priv { 64 struct wm9090_platform_data pdata; 65 struct regmap *regmap; 66 }; 67 68 static bool wm9090_volatile(struct device *dev, unsigned int reg) 69 { 70 switch (reg) { 71 case WM9090_SOFTWARE_RESET: 72 case WM9090_DC_SERVO_0: 73 case WM9090_DC_SERVO_READBACK_0: 74 case WM9090_DC_SERVO_READBACK_1: 75 case WM9090_DC_SERVO_READBACK_2: 76 return true; 77 78 default: 79 return false; 80 } 81 } 82 83 static bool wm9090_readable(struct device *dev, unsigned int reg) 84 { 85 switch (reg) { 86 case WM9090_SOFTWARE_RESET: 87 case WM9090_POWER_MANAGEMENT_1: 88 case WM9090_POWER_MANAGEMENT_2: 89 case WM9090_POWER_MANAGEMENT_3: 90 case WM9090_CLOCKING_1: 91 case WM9090_IN1_LINE_CONTROL: 92 case WM9090_IN2_LINE_CONTROL: 93 case WM9090_IN1_LINE_INPUT_A_VOLUME: 94 case WM9090_IN1_LINE_INPUT_B_VOLUME: 95 case WM9090_IN2_LINE_INPUT_A_VOLUME: 96 case WM9090_IN2_LINE_INPUT_B_VOLUME: 97 case WM9090_LEFT_OUTPUT_VOLUME: 98 case WM9090_RIGHT_OUTPUT_VOLUME: 99 case WM9090_SPKMIXL_ATTENUATION: 100 case WM9090_SPKOUT_MIXERS: 101 case WM9090_CLASSD3: 102 case WM9090_SPEAKER_VOLUME_LEFT: 103 case WM9090_OUTPUT_MIXER1: 104 case WM9090_OUTPUT_MIXER2: 105 case WM9090_OUTPUT_MIXER3: 106 case WM9090_OUTPUT_MIXER4: 107 case WM9090_SPEAKER_MIXER: 108 case WM9090_ANTIPOP2: 109 case WM9090_WRITE_SEQUENCER_0: 110 case WM9090_WRITE_SEQUENCER_1: 111 case WM9090_WRITE_SEQUENCER_2: 112 case WM9090_WRITE_SEQUENCER_3: 113 case WM9090_WRITE_SEQUENCER_4: 114 case WM9090_WRITE_SEQUENCER_5: 115 case WM9090_CHARGE_PUMP_1: 116 case WM9090_DC_SERVO_0: 117 case WM9090_DC_SERVO_1: 118 case WM9090_DC_SERVO_3: 119 case WM9090_DC_SERVO_READBACK_0: 120 case WM9090_DC_SERVO_READBACK_1: 121 case WM9090_DC_SERVO_READBACK_2: 122 case WM9090_ANALOGUE_HP_0: 123 case WM9090_AGC_CONTROL_0: 124 case WM9090_AGC_CONTROL_1: 125 case WM9090_AGC_CONTROL_2: 126 return true; 127 128 default: 129 return false; 130 } 131 } 132 133 static void wait_for_dc_servo(struct snd_soc_component *component) 134 { 135 unsigned int reg; 136 int count = 0; 137 138 dev_dbg(component->dev, "Waiting for DC servo...\n"); 139 do { 140 count++; 141 msleep(1); 142 reg = snd_soc_component_read(component, WM9090_DC_SERVO_READBACK_0); 143 dev_dbg(component->dev, "DC servo status: %x\n", reg); 144 } while ((reg & WM9090_DCS_CAL_COMPLETE_MASK) 145 != WM9090_DCS_CAL_COMPLETE_MASK && count < 1000); 146 147 if ((reg & WM9090_DCS_CAL_COMPLETE_MASK) 148 != WM9090_DCS_CAL_COMPLETE_MASK) 149 dev_err(component->dev, "Timed out waiting for DC Servo\n"); 150 } 151 152 static const DECLARE_TLV_DB_RANGE(in_tlv, 153 0, 0, TLV_DB_SCALE_ITEM(-600, 0, 0), 154 1, 3, TLV_DB_SCALE_ITEM(-350, 350, 0), 155 4, 6, TLV_DB_SCALE_ITEM(600, 600, 0) 156 ); 157 static const DECLARE_TLV_DB_RANGE(mix_tlv, 158 0, 2, TLV_DB_SCALE_ITEM(-1200, 300, 0), 159 3, 3, TLV_DB_SCALE_ITEM(0, 0, 0) 160 ); 161 static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0); 162 static const DECLARE_TLV_DB_RANGE(spkboost_tlv, 163 0, 6, TLV_DB_SCALE_ITEM(0, 150, 0), 164 7, 7, TLV_DB_SCALE_ITEM(1200, 0, 0) 165 ); 166 167 static const struct snd_kcontrol_new wm9090_controls[] = { 168 SOC_SINGLE_TLV("IN1A Volume", WM9090_IN1_LINE_INPUT_A_VOLUME, 0, 6, 0, 169 in_tlv), 170 SOC_SINGLE("IN1A Switch", WM9090_IN1_LINE_INPUT_A_VOLUME, 7, 1, 1), 171 SOC_SINGLE("IN1A ZC Switch", WM9090_IN1_LINE_INPUT_A_VOLUME, 6, 1, 0), 172 173 SOC_SINGLE_TLV("IN2A Volume", WM9090_IN2_LINE_INPUT_A_VOLUME, 0, 6, 0, 174 in_tlv), 175 SOC_SINGLE("IN2A Switch", WM9090_IN2_LINE_INPUT_A_VOLUME, 7, 1, 1), 176 SOC_SINGLE("IN2A ZC Switch", WM9090_IN2_LINE_INPUT_A_VOLUME, 6, 1, 0), 177 178 SOC_SINGLE("MIXOUTL Switch", WM9090_OUTPUT_MIXER3, 8, 1, 1), 179 SOC_SINGLE_TLV("MIXOUTL IN1A Volume", WM9090_OUTPUT_MIXER3, 6, 3, 1, 180 mix_tlv), 181 SOC_SINGLE_TLV("MIXOUTL IN2A Volume", WM9090_OUTPUT_MIXER3, 2, 3, 1, 182 mix_tlv), 183 184 SOC_SINGLE("MIXOUTR Switch", WM9090_OUTPUT_MIXER4, 8, 1, 1), 185 SOC_SINGLE_TLV("MIXOUTR IN1A Volume", WM9090_OUTPUT_MIXER4, 6, 3, 1, 186 mix_tlv), 187 SOC_SINGLE_TLV("MIXOUTR IN2A Volume", WM9090_OUTPUT_MIXER4, 2, 3, 1, 188 mix_tlv), 189 190 SOC_SINGLE("SPKMIX Switch", WM9090_SPKMIXL_ATTENUATION, 8, 1, 1), 191 SOC_SINGLE_TLV("SPKMIX IN1A Volume", WM9090_SPKMIXL_ATTENUATION, 6, 3, 1, 192 mix_tlv), 193 SOC_SINGLE_TLV("SPKMIX IN2A Volume", WM9090_SPKMIXL_ATTENUATION, 2, 3, 1, 194 mix_tlv), 195 196 SOC_DOUBLE_R_TLV("Headphone Volume", WM9090_LEFT_OUTPUT_VOLUME, 197 WM9090_RIGHT_OUTPUT_VOLUME, 0, 63, 0, out_tlv), 198 SOC_DOUBLE_R("Headphone Switch", WM9090_LEFT_OUTPUT_VOLUME, 199 WM9090_RIGHT_OUTPUT_VOLUME, 6, 1, 1), 200 SOC_DOUBLE_R("Headphone ZC Switch", WM9090_LEFT_OUTPUT_VOLUME, 201 WM9090_RIGHT_OUTPUT_VOLUME, 7, 1, 0), 202 203 SOC_SINGLE_TLV("Speaker Volume", WM9090_SPEAKER_VOLUME_LEFT, 0, 63, 0, 204 out_tlv), 205 SOC_SINGLE("Speaker Switch", WM9090_SPEAKER_VOLUME_LEFT, 6, 1, 1), 206 SOC_SINGLE("Speaker ZC Switch", WM9090_SPEAKER_VOLUME_LEFT, 7, 1, 0), 207 SOC_SINGLE_TLV("Speaker Boost Volume", WM9090_CLASSD3, 3, 7, 0, spkboost_tlv), 208 }; 209 210 static const struct snd_kcontrol_new wm9090_in1_se_controls[] = { 211 SOC_SINGLE_TLV("IN1B Volume", WM9090_IN1_LINE_INPUT_B_VOLUME, 0, 6, 0, 212 in_tlv), 213 SOC_SINGLE("IN1B Switch", WM9090_IN1_LINE_INPUT_B_VOLUME, 7, 1, 1), 214 SOC_SINGLE("IN1B ZC Switch", WM9090_IN1_LINE_INPUT_B_VOLUME, 6, 1, 0), 215 216 SOC_SINGLE_TLV("SPKMIX IN1B Volume", WM9090_SPKMIXL_ATTENUATION, 4, 3, 1, 217 mix_tlv), 218 SOC_SINGLE_TLV("MIXOUTL IN1B Volume", WM9090_OUTPUT_MIXER3, 4, 3, 1, 219 mix_tlv), 220 SOC_SINGLE_TLV("MIXOUTR IN1B Volume", WM9090_OUTPUT_MIXER4, 4, 3, 1, 221 mix_tlv), 222 }; 223 224 static const struct snd_kcontrol_new wm9090_in2_se_controls[] = { 225 SOC_SINGLE_TLV("IN2B Volume", WM9090_IN2_LINE_INPUT_B_VOLUME, 0, 6, 0, 226 in_tlv), 227 SOC_SINGLE("IN2B Switch", WM9090_IN2_LINE_INPUT_B_VOLUME, 7, 1, 1), 228 SOC_SINGLE("IN2B ZC Switch", WM9090_IN2_LINE_INPUT_B_VOLUME, 6, 1, 0), 229 230 SOC_SINGLE_TLV("SPKMIX IN2B Volume", WM9090_SPKMIXL_ATTENUATION, 0, 3, 1, 231 mix_tlv), 232 SOC_SINGLE_TLV("MIXOUTL IN2B Volume", WM9090_OUTPUT_MIXER3, 0, 3, 1, 233 mix_tlv), 234 SOC_SINGLE_TLV("MIXOUTR IN2B Volume", WM9090_OUTPUT_MIXER4, 0, 3, 1, 235 mix_tlv), 236 }; 237 238 static int hp_ev(struct snd_soc_dapm_widget *w, 239 struct snd_kcontrol *kcontrol, int event) 240 { 241 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 242 unsigned int reg = snd_soc_component_read(component, WM9090_ANALOGUE_HP_0); 243 244 switch (event) { 245 case SND_SOC_DAPM_POST_PMU: 246 snd_soc_component_update_bits(component, WM9090_CHARGE_PUMP_1, 247 WM9090_CP_ENA, WM9090_CP_ENA); 248 249 msleep(5); 250 251 snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1, 252 WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA, 253 WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA); 254 255 reg |= WM9090_HPOUT1L_DLY | WM9090_HPOUT1R_DLY; 256 snd_soc_component_write(component, WM9090_ANALOGUE_HP_0, reg); 257 258 /* Start the DC servo. We don't currently use the 259 * ability to save the state since we don't have full 260 * control of the analogue paths and they can change 261 * DC offsets; see the WM8904 driver for an example of 262 * doing so. 263 */ 264 snd_soc_component_write(component, WM9090_DC_SERVO_0, 265 WM9090_DCS_ENA_CHAN_0 | 266 WM9090_DCS_ENA_CHAN_1 | 267 WM9090_DCS_TRIG_STARTUP_1 | 268 WM9090_DCS_TRIG_STARTUP_0); 269 wait_for_dc_servo(component); 270 271 reg |= WM9090_HPOUT1R_OUTP | WM9090_HPOUT1R_RMV_SHORT | 272 WM9090_HPOUT1L_OUTP | WM9090_HPOUT1L_RMV_SHORT; 273 snd_soc_component_write(component, WM9090_ANALOGUE_HP_0, reg); 274 break; 275 276 case SND_SOC_DAPM_PRE_PMD: 277 reg &= ~(WM9090_HPOUT1L_RMV_SHORT | 278 WM9090_HPOUT1L_DLY | 279 WM9090_HPOUT1L_OUTP | 280 WM9090_HPOUT1R_RMV_SHORT | 281 WM9090_HPOUT1R_DLY | 282 WM9090_HPOUT1R_OUTP); 283 284 snd_soc_component_write(component, WM9090_ANALOGUE_HP_0, reg); 285 286 snd_soc_component_write(component, WM9090_DC_SERVO_0, 0); 287 288 snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1, 289 WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA, 290 0); 291 292 snd_soc_component_update_bits(component, WM9090_CHARGE_PUMP_1, 293 WM9090_CP_ENA, 0); 294 break; 295 } 296 297 return 0; 298 } 299 300 static const struct snd_kcontrol_new spkmix[] = { 301 SOC_DAPM_SINGLE("IN1A Switch", WM9090_SPEAKER_MIXER, 6, 1, 0), 302 SOC_DAPM_SINGLE("IN1B Switch", WM9090_SPEAKER_MIXER, 4, 1, 0), 303 SOC_DAPM_SINGLE("IN2A Switch", WM9090_SPEAKER_MIXER, 2, 1, 0), 304 SOC_DAPM_SINGLE("IN2B Switch", WM9090_SPEAKER_MIXER, 0, 1, 0), 305 }; 306 307 static const struct snd_kcontrol_new spkout[] = { 308 SOC_DAPM_SINGLE("Mixer Switch", WM9090_SPKOUT_MIXERS, 4, 1, 0), 309 }; 310 311 static const struct snd_kcontrol_new mixoutl[] = { 312 SOC_DAPM_SINGLE("IN1A Switch", WM9090_OUTPUT_MIXER1, 6, 1, 0), 313 SOC_DAPM_SINGLE("IN1B Switch", WM9090_OUTPUT_MIXER1, 4, 1, 0), 314 SOC_DAPM_SINGLE("IN2A Switch", WM9090_OUTPUT_MIXER1, 2, 1, 0), 315 SOC_DAPM_SINGLE("IN2B Switch", WM9090_OUTPUT_MIXER1, 0, 1, 0), 316 }; 317 318 static const struct snd_kcontrol_new mixoutr[] = { 319 SOC_DAPM_SINGLE("IN1A Switch", WM9090_OUTPUT_MIXER2, 6, 1, 0), 320 SOC_DAPM_SINGLE("IN1B Switch", WM9090_OUTPUT_MIXER2, 4, 1, 0), 321 SOC_DAPM_SINGLE("IN2A Switch", WM9090_OUTPUT_MIXER2, 2, 1, 0), 322 SOC_DAPM_SINGLE("IN2B Switch", WM9090_OUTPUT_MIXER2, 0, 1, 0), 323 }; 324 325 static const struct snd_soc_dapm_widget wm9090_dapm_widgets[] = { 326 SND_SOC_DAPM_INPUT("IN1+"), 327 SND_SOC_DAPM_INPUT("IN1-"), 328 SND_SOC_DAPM_INPUT("IN2+"), 329 SND_SOC_DAPM_INPUT("IN2-"), 330 331 SND_SOC_DAPM_SUPPLY("OSC", WM9090_POWER_MANAGEMENT_1, 3, 0, NULL, 0), 332 333 SND_SOC_DAPM_PGA("IN1A PGA", WM9090_POWER_MANAGEMENT_2, 7, 0, NULL, 0), 334 SND_SOC_DAPM_PGA("IN1B PGA", WM9090_POWER_MANAGEMENT_2, 6, 0, NULL, 0), 335 SND_SOC_DAPM_PGA("IN2A PGA", WM9090_POWER_MANAGEMENT_2, 5, 0, NULL, 0), 336 SND_SOC_DAPM_PGA("IN2B PGA", WM9090_POWER_MANAGEMENT_2, 4, 0, NULL, 0), 337 338 SND_SOC_DAPM_MIXER("SPKMIX", WM9090_POWER_MANAGEMENT_3, 3, 0, 339 spkmix, ARRAY_SIZE(spkmix)), 340 SND_SOC_DAPM_MIXER("MIXOUTL", WM9090_POWER_MANAGEMENT_3, 5, 0, 341 mixoutl, ARRAY_SIZE(mixoutl)), 342 SND_SOC_DAPM_MIXER("MIXOUTR", WM9090_POWER_MANAGEMENT_3, 4, 0, 343 mixoutr, ARRAY_SIZE(mixoutr)), 344 345 SND_SOC_DAPM_PGA_E("HP PGA", SND_SOC_NOPM, 0, 0, NULL, 0, 346 hp_ev, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 347 348 SND_SOC_DAPM_PGA("SPKPGA", WM9090_POWER_MANAGEMENT_3, 8, 0, NULL, 0), 349 SND_SOC_DAPM_MIXER("SPKOUT", WM9090_POWER_MANAGEMENT_1, 12, 0, 350 spkout, ARRAY_SIZE(spkout)), 351 352 SND_SOC_DAPM_OUTPUT("HPR"), 353 SND_SOC_DAPM_OUTPUT("HPL"), 354 SND_SOC_DAPM_OUTPUT("Speaker"), 355 }; 356 357 static const struct snd_soc_dapm_route audio_map[] = { 358 { "IN1A PGA", NULL, "IN1+" }, 359 { "IN2A PGA", NULL, "IN2+" }, 360 361 { "SPKMIX", "IN1A Switch", "IN1A PGA" }, 362 { "SPKMIX", "IN2A Switch", "IN2A PGA" }, 363 364 { "MIXOUTL", "IN1A Switch", "IN1A PGA" }, 365 { "MIXOUTL", "IN2A Switch", "IN2A PGA" }, 366 367 { "MIXOUTR", "IN1A Switch", "IN1A PGA" }, 368 { "MIXOUTR", "IN2A Switch", "IN2A PGA" }, 369 370 { "HP PGA", NULL, "OSC" }, 371 { "HP PGA", NULL, "MIXOUTL" }, 372 { "HP PGA", NULL, "MIXOUTR" }, 373 374 { "HPL", NULL, "HP PGA" }, 375 { "HPR", NULL, "HP PGA" }, 376 377 { "SPKPGA", NULL, "OSC" }, 378 { "SPKPGA", NULL, "SPKMIX" }, 379 380 { "SPKOUT", "Mixer Switch", "SPKPGA" }, 381 382 { "Speaker", NULL, "SPKOUT" }, 383 }; 384 385 static const struct snd_soc_dapm_route audio_map_in1_se[] = { 386 { "IN1B PGA", NULL, "IN1-" }, 387 388 { "SPKMIX", "IN1B Switch", "IN1B PGA" }, 389 { "MIXOUTL", "IN1B Switch", "IN1B PGA" }, 390 { "MIXOUTR", "IN1B Switch", "IN1B PGA" }, 391 }; 392 393 static const struct snd_soc_dapm_route audio_map_in1_diff[] = { 394 { "IN1A PGA", NULL, "IN1-" }, 395 }; 396 397 static const struct snd_soc_dapm_route audio_map_in2_se[] = { 398 { "IN2B PGA", NULL, "IN2-" }, 399 400 { "SPKMIX", "IN2B Switch", "IN2B PGA" }, 401 { "MIXOUTL", "IN2B Switch", "IN2B PGA" }, 402 { "MIXOUTR", "IN2B Switch", "IN2B PGA" }, 403 }; 404 405 static const struct snd_soc_dapm_route audio_map_in2_diff[] = { 406 { "IN2A PGA", NULL, "IN2-" }, 407 }; 408 409 static int wm9090_add_controls(struct snd_soc_component *component) 410 { 411 struct wm9090_priv *wm9090 = snd_soc_component_get_drvdata(component); 412 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 413 int i; 414 415 snd_soc_dapm_new_controls(dapm, wm9090_dapm_widgets, 416 ARRAY_SIZE(wm9090_dapm_widgets)); 417 418 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); 419 420 snd_soc_add_component_controls(component, wm9090_controls, 421 ARRAY_SIZE(wm9090_controls)); 422 423 if (wm9090->pdata.lin1_diff) { 424 snd_soc_dapm_add_routes(dapm, audio_map_in1_diff, 425 ARRAY_SIZE(audio_map_in1_diff)); 426 } else { 427 snd_soc_dapm_add_routes(dapm, audio_map_in1_se, 428 ARRAY_SIZE(audio_map_in1_se)); 429 snd_soc_add_component_controls(component, wm9090_in1_se_controls, 430 ARRAY_SIZE(wm9090_in1_se_controls)); 431 } 432 433 if (wm9090->pdata.lin2_diff) { 434 snd_soc_dapm_add_routes(dapm, audio_map_in2_diff, 435 ARRAY_SIZE(audio_map_in2_diff)); 436 } else { 437 snd_soc_dapm_add_routes(dapm, audio_map_in2_se, 438 ARRAY_SIZE(audio_map_in2_se)); 439 snd_soc_add_component_controls(component, wm9090_in2_se_controls, 440 ARRAY_SIZE(wm9090_in2_se_controls)); 441 } 442 443 if (wm9090->pdata.agc_ena) { 444 for (i = 0; i < ARRAY_SIZE(wm9090->pdata.agc); i++) 445 snd_soc_component_write(component, WM9090_AGC_CONTROL_0 + i, 446 wm9090->pdata.agc[i]); 447 snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_3, 448 WM9090_AGC_ENA, WM9090_AGC_ENA); 449 } else { 450 snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_3, 451 WM9090_AGC_ENA, 0); 452 } 453 454 return 0; 455 456 } 457 458 /* 459 * The machine driver should call this from their set_bias_level; if there 460 * isn't one then this can just be set as the set_bias_level function. 461 */ 462 static int wm9090_set_bias_level(struct snd_soc_component *component, 463 enum snd_soc_bias_level level) 464 { 465 struct wm9090_priv *wm9090 = snd_soc_component_get_drvdata(component); 466 467 switch (level) { 468 case SND_SOC_BIAS_ON: 469 break; 470 471 case SND_SOC_BIAS_PREPARE: 472 snd_soc_component_update_bits(component, WM9090_ANTIPOP2, WM9090_VMID_ENA, 473 WM9090_VMID_ENA); 474 snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1, 475 WM9090_BIAS_ENA | 476 WM9090_VMID_RES_MASK, 477 WM9090_BIAS_ENA | 478 1 << WM9090_VMID_RES_SHIFT); 479 msleep(1); /* Probably an overestimate */ 480 break; 481 482 case SND_SOC_BIAS_STANDBY: 483 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { 484 /* Restore the register cache */ 485 regcache_sync(wm9090->regmap); 486 } 487 488 /* We keep VMID off during standby since the combination of 489 * ground referenced outputs and class D speaker mean that 490 * latency is not an issue. 491 */ 492 snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1, 493 WM9090_BIAS_ENA | WM9090_VMID_RES_MASK, 0); 494 snd_soc_component_update_bits(component, WM9090_ANTIPOP2, 495 WM9090_VMID_ENA, 0); 496 break; 497 498 case SND_SOC_BIAS_OFF: 499 break; 500 } 501 502 return 0; 503 } 504 505 static int wm9090_probe(struct snd_soc_component *component) 506 { 507 /* Configure some defaults; they will be written out when we 508 * bring the bias up. 509 */ 510 snd_soc_component_update_bits(component, WM9090_IN1_LINE_INPUT_A_VOLUME, 511 WM9090_IN1_VU | WM9090_IN1A_ZC, 512 WM9090_IN1_VU | WM9090_IN1A_ZC); 513 snd_soc_component_update_bits(component, WM9090_IN1_LINE_INPUT_B_VOLUME, 514 WM9090_IN1_VU | WM9090_IN1B_ZC, 515 WM9090_IN1_VU | WM9090_IN1B_ZC); 516 snd_soc_component_update_bits(component, WM9090_IN2_LINE_INPUT_A_VOLUME, 517 WM9090_IN2_VU | WM9090_IN2A_ZC, 518 WM9090_IN2_VU | WM9090_IN2A_ZC); 519 snd_soc_component_update_bits(component, WM9090_IN2_LINE_INPUT_B_VOLUME, 520 WM9090_IN2_VU | WM9090_IN2B_ZC, 521 WM9090_IN2_VU | WM9090_IN2B_ZC); 522 snd_soc_component_update_bits(component, WM9090_SPEAKER_VOLUME_LEFT, 523 WM9090_SPKOUT_VU | WM9090_SPKOUTL_ZC, 524 WM9090_SPKOUT_VU | WM9090_SPKOUTL_ZC); 525 snd_soc_component_update_bits(component, WM9090_LEFT_OUTPUT_VOLUME, 526 WM9090_HPOUT1_VU | WM9090_HPOUT1L_ZC, 527 WM9090_HPOUT1_VU | WM9090_HPOUT1L_ZC); 528 snd_soc_component_update_bits(component, WM9090_RIGHT_OUTPUT_VOLUME, 529 WM9090_HPOUT1_VU | WM9090_HPOUT1R_ZC, 530 WM9090_HPOUT1_VU | WM9090_HPOUT1R_ZC); 531 532 snd_soc_component_update_bits(component, WM9090_CLOCKING_1, 533 WM9090_TOCLK_ENA, WM9090_TOCLK_ENA); 534 535 wm9090_add_controls(component); 536 537 return 0; 538 } 539 540 static const struct snd_soc_component_driver soc_component_dev_wm9090 = { 541 .probe = wm9090_probe, 542 .set_bias_level = wm9090_set_bias_level, 543 .suspend_bias_off = 1, 544 .idle_bias_on = 1, 545 .use_pmdown_time = 1, 546 }; 547 548 static const struct regmap_config wm9090_regmap = { 549 .reg_bits = 8, 550 .val_bits = 16, 551 552 .max_register = WM9090_MAX_REGISTER, 553 .volatile_reg = wm9090_volatile, 554 .readable_reg = wm9090_readable, 555 556 .cache_type = REGCACHE_RBTREE, 557 .reg_defaults = wm9090_reg_defaults, 558 .num_reg_defaults = ARRAY_SIZE(wm9090_reg_defaults), 559 }; 560 561 562 static int wm9090_i2c_probe(struct i2c_client *i2c) 563 { 564 struct wm9090_priv *wm9090; 565 unsigned int reg; 566 int ret; 567 568 wm9090 = devm_kzalloc(&i2c->dev, sizeof(*wm9090), GFP_KERNEL); 569 if (!wm9090) 570 return -ENOMEM; 571 572 wm9090->regmap = devm_regmap_init_i2c(i2c, &wm9090_regmap); 573 if (IS_ERR(wm9090->regmap)) { 574 ret = PTR_ERR(wm9090->regmap); 575 dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret); 576 return ret; 577 } 578 579 ret = regmap_read(wm9090->regmap, WM9090_SOFTWARE_RESET, ®); 580 if (ret < 0) 581 return ret; 582 583 if (reg != 0x9093) { 584 dev_err(&i2c->dev, "Device is not a WM9090, ID=%x\n", reg); 585 return -ENODEV; 586 } 587 588 ret = regmap_write(wm9090->regmap, WM9090_SOFTWARE_RESET, 0); 589 if (ret < 0) 590 return ret; 591 592 if (i2c->dev.platform_data) 593 memcpy(&wm9090->pdata, i2c->dev.platform_data, 594 sizeof(wm9090->pdata)); 595 596 i2c_set_clientdata(i2c, wm9090); 597 598 ret = devm_snd_soc_register_component(&i2c->dev, 599 &soc_component_dev_wm9090, NULL, 0); 600 if (ret != 0) { 601 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret); 602 return ret; 603 } 604 605 return 0; 606 } 607 608 static const struct i2c_device_id wm9090_id[] = { 609 { "wm9090", 0 }, 610 { "wm9093", 0 }, 611 { } 612 }; 613 MODULE_DEVICE_TABLE(i2c, wm9090_id); 614 615 static struct i2c_driver wm9090_i2c_driver = { 616 .driver = { 617 .name = "wm9090", 618 }, 619 .probe_new = wm9090_i2c_probe, 620 .id_table = wm9090_id, 621 }; 622 623 module_i2c_driver(wm9090_i2c_driver); 624 625 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); 626 MODULE_DESCRIPTION("WM9090 ASoC driver"); 627 MODULE_LICENSE("GPL"); 628