1 // SPDX-License-Identifier: GPL-2.0-only 2 // 3 // Driver for Cirrus Logic CS35L56 smart amp 4 // 5 // Copyright (C) 2023 Cirrus Logic, Inc. and 6 // Cirrus Logic International Semiconductor Ltd. 7 8 #include <kunit/static_stub.h> 9 #include <kunit/visibility.h> 10 #include <linux/acpi.h> 11 #include <linux/array_size.h> 12 #include <linux/completion.h> 13 #include <linux/debugfs.h> 14 #include <linux/delay.h> 15 #include <linux/device.h> 16 #include <linux/err.h> 17 #include <linux/gpio/consumer.h> 18 #include <linux/interrupt.h> 19 #include <linux/math.h> 20 #include <linux/module.h> 21 #include <linux/mutex.h> 22 #include <linux/pm.h> 23 #include <linux/pm_runtime.h> 24 #include <linux/property.h> 25 #include <linux/reboot.h> 26 #include <linux/regmap.h> 27 #include <linux/regulator/consumer.h> 28 #include <linux/slab.h> 29 #include <linux/soundwire/sdw.h> 30 #include <linux/types.h> 31 #include <linux/workqueue.h> 32 #include <sound/cs-amp-lib.h> 33 #include <sound/pcm.h> 34 #include <sound/pcm_params.h> 35 #include <sound/sdw.h> 36 #include <sound/soc.h> 37 #include <sound/soc-dapm.h> 38 #include <sound/tlv.h> 39 40 #include "wm_adsp.h" 41 #include "cs35l56.h" 42 43 /* 44 * snd_soc_register_component() can call component_probe() on all instances 45 * in a card, so deferred registration must be protected across all instances. 46 */ 47 static DEFINE_MUTEX(cs35l56_component_register_lock); 48 static bool cs35l56_shutting_down; 49 50 void cs35l56_mask_soundwire_interrupts(struct cs35l56_private *cs35l56) 51 { 52 /* 53 * Mask unconditionally. 54 * 55 * The read of GEN_INT_STAT_1 is required as per the SoundWire spec 56 * for interrupt status bits to clear. 57 * GEN_INT_MASK_1 masks the _inputs_ to GEN_INT_STAT1. 58 */ 59 sdw_write_no_pm(cs35l56->sdw_peripheral, CS35L56_SDW_GEN_INT_MASK_1, 0); 60 sdw_read_no_pm(cs35l56->sdw_peripheral, CS35L56_SDW_GEN_INT_STAT_1); 61 sdw_write_no_pm(cs35l56->sdw_peripheral, CS35L56_SDW_GEN_INT_STAT_1, 0xFF); 62 } 63 EXPORT_SYMBOL_NS_GPL(cs35l56_mask_soundwire_interrupts, "SND_SOC_CS35L56_CORE"); 64 65 void cs35l56_unmask_soundwire_interrupts(struct cs35l56_private *cs35l56) 66 { 67 if (!cs35l56->base.irq) 68 return; 69 70 sdw_write_no_pm(cs35l56->sdw_peripheral, CS35L56_SDW_GEN_INT_MASK_1, 71 CS35L56_SDW_INT_MASK_CODEC_IRQ); 72 } 73 EXPORT_SYMBOL_NS_GPL(cs35l56_unmask_soundwire_interrupts, "SND_SOC_CS35L56_CORE"); 74 75 static void cs35l56_disable_sdw_interrupts(struct cs35l56_private *cs35l56) 76 { 77 if (!cs35l56->sdw_peripheral) 78 return; 79 80 cs35l56_mask_soundwire_interrupts(cs35l56); 81 if (cs35l56->base.irq) 82 disable_irq(cs35l56->base.irq); 83 } 84 85 static void cs35l56_enable_sdw_interrupts(struct cs35l56_private *cs35l56) 86 { 87 if (!cs35l56->sdw_peripheral || !cs35l56->base.irq) 88 return; 89 90 enable_irq(cs35l56->base.irq); 91 cs35l56_unmask_soundwire_interrupts(cs35l56); 92 } 93 94 static int cs35l56_dsp_event(struct snd_soc_dapm_widget *w, 95 struct snd_kcontrol *kcontrol, int event); 96 97 static void cs35l56_wait_dsp_ready(struct cs35l56_private *cs35l56) 98 { 99 /* Wait for patching to complete */ 100 flush_work(&cs35l56->dsp_work); 101 } 102 103 static int cs35l56_dspwait_get_volsw(struct snd_kcontrol *kcontrol, 104 struct snd_ctl_elem_value *ucontrol) 105 { 106 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 107 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component); 108 109 cs35l56_wait_dsp_ready(cs35l56); 110 return snd_soc_get_volsw(kcontrol, ucontrol); 111 } 112 113 static int cs35l56_dspwait_put_volsw(struct snd_kcontrol *kcontrol, 114 struct snd_ctl_elem_value *ucontrol) 115 { 116 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 117 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component); 118 119 cs35l56_wait_dsp_ready(cs35l56); 120 return snd_soc_put_volsw(kcontrol, ucontrol); 121 } 122 123 static DECLARE_TLV_DB_SCALE(vol_tlv, -10000, 25, 0); 124 125 static SOC_ENUM_SINGLE_DECL(cs35l56_cal_set_status_enum, SND_SOC_NOPM, 0, 126 cs35l56_cal_set_status_text); 127 128 static int cs35l56_cal_set_status_ctl_get(struct snd_kcontrol *kcontrol, 129 struct snd_ctl_elem_value *ucontrol) 130 { 131 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 132 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component); 133 134 return cs35l56_cal_set_status_get(&cs35l56->base, ucontrol); 135 } 136 137 static const struct snd_kcontrol_new cs35l56_controls[] = { 138 SOC_SINGLE_EXT("Speaker Switch", 139 CS35L56_MAIN_RENDER_USER_MUTE, 0, 1, 1, 140 cs35l56_dspwait_get_volsw, cs35l56_dspwait_put_volsw), 141 SOC_SINGLE_S_EXT_TLV("Speaker Volume", 142 CS35L56_MAIN_RENDER_USER_VOLUME, 143 CS35L56_MAIN_RENDER_USER_VOLUME_SHIFT, 144 CS35L56_MAIN_RENDER_USER_VOLUME_MIN, 145 CS35L56_MAIN_RENDER_USER_VOLUME_MAX, 146 CS35L56_MAIN_RENDER_USER_VOLUME_SIGNBIT, 147 0, 148 cs35l56_dspwait_get_volsw, 149 cs35l56_dspwait_put_volsw, 150 vol_tlv), 151 SOC_SINGLE_EXT("Posture Number", CS35L56_MAIN_POSTURE_NUMBER, 152 0, 255, 0, 153 cs35l56_dspwait_get_volsw, cs35l56_dspwait_put_volsw), 154 SOC_ENUM_EXT_ACC("CAL_SET_STATUS", cs35l56_cal_set_status_enum, 155 cs35l56_cal_set_status_ctl_get, NULL, 156 SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE), 157 }; 158 159 static const struct snd_kcontrol_new cs35l63_controls[] = { 160 SOC_SINGLE_EXT("Speaker Switch", 161 CS35L63_MAIN_RENDER_USER_MUTE, 0, 1, 1, 162 cs35l56_dspwait_get_volsw, cs35l56_dspwait_put_volsw), 163 SOC_SINGLE_S_EXT_TLV("Speaker Volume", 164 CS35L63_MAIN_RENDER_USER_VOLUME, 165 CS35L56_MAIN_RENDER_USER_VOLUME_SHIFT, 166 CS35L56_MAIN_RENDER_USER_VOLUME_MIN, 167 CS35L56_MAIN_RENDER_USER_VOLUME_MAX, 168 CS35L56_MAIN_RENDER_USER_VOLUME_SIGNBIT, 169 0, 170 cs35l56_dspwait_get_volsw, 171 cs35l56_dspwait_put_volsw, 172 vol_tlv), 173 SOC_SINGLE_EXT("Posture Number", CS35L63_MAIN_POSTURE_NUMBER, 174 0, 255, 0, 175 cs35l56_dspwait_get_volsw, cs35l56_dspwait_put_volsw), 176 SOC_ENUM_EXT_ACC("CAL_SET_STATUS", cs35l56_cal_set_status_enum, 177 cs35l56_cal_set_status_ctl_get, NULL, 178 SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE), 179 }; 180 181 static SOC_VALUE_ENUM_SINGLE_DECL(cs35l56_asp1tx1_enum, 182 CS35L56_ASP1TX1_INPUT, 183 0, CS35L56_ASP_TXn_SRC_MASK, 184 cs35l56_tx_input_texts, 185 cs35l56_tx_input_values); 186 187 static const struct snd_kcontrol_new asp1_tx1_mux = 188 SOC_DAPM_ENUM("ASP1TX1 SRC", cs35l56_asp1tx1_enum); 189 190 static SOC_VALUE_ENUM_SINGLE_DECL(cs35l56_asp1tx2_enum, 191 CS35L56_ASP1TX2_INPUT, 192 0, CS35L56_ASP_TXn_SRC_MASK, 193 cs35l56_tx_input_texts, 194 cs35l56_tx_input_values); 195 196 static const struct snd_kcontrol_new asp1_tx2_mux = 197 SOC_DAPM_ENUM("ASP1TX2 SRC", cs35l56_asp1tx2_enum); 198 199 static SOC_VALUE_ENUM_SINGLE_DECL(cs35l56_asp1tx3_enum, 200 CS35L56_ASP1TX3_INPUT, 201 0, CS35L56_ASP_TXn_SRC_MASK, 202 cs35l56_tx_input_texts, 203 cs35l56_tx_input_values); 204 205 static const struct snd_kcontrol_new asp1_tx3_mux = 206 SOC_DAPM_ENUM("ASP1TX3 SRC", cs35l56_asp1tx3_enum); 207 208 static SOC_VALUE_ENUM_SINGLE_DECL(cs35l56_asp1tx4_enum, 209 CS35L56_ASP1TX4_INPUT, 210 0, CS35L56_ASP_TXn_SRC_MASK, 211 cs35l56_tx_input_texts, 212 cs35l56_tx_input_values); 213 214 static const struct snd_kcontrol_new asp1_tx4_mux = 215 SOC_DAPM_ENUM("ASP1TX4 SRC", cs35l56_asp1tx4_enum); 216 217 static SOC_VALUE_ENUM_SINGLE_DECL(cs35l56_sdw1tx1_enum, 218 CS35L56_SWIRE_DP3_CH1_INPUT, 219 0, CS35L56_SWIRETXn_SRC_MASK, 220 cs35l56_tx_input_texts, 221 cs35l56_tx_input_values); 222 223 static const struct snd_kcontrol_new sdw1_tx1_mux = 224 SOC_DAPM_ENUM("SDW1TX1 SRC", cs35l56_sdw1tx1_enum); 225 226 static SOC_VALUE_ENUM_SINGLE_DECL(cs35l56_sdw1tx2_enum, 227 CS35L56_SWIRE_DP3_CH2_INPUT, 228 0, CS35L56_SWIRETXn_SRC_MASK, 229 cs35l56_tx_input_texts, 230 cs35l56_tx_input_values); 231 232 static const struct snd_kcontrol_new sdw1_tx2_mux = 233 SOC_DAPM_ENUM("SDW1TX2 SRC", cs35l56_sdw1tx2_enum); 234 235 static SOC_VALUE_ENUM_SINGLE_DECL(cs35l56_sdw1tx3_enum, 236 CS35L56_SWIRE_DP3_CH3_INPUT, 237 0, CS35L56_SWIRETXn_SRC_MASK, 238 cs35l56_tx_input_texts, 239 cs35l56_tx_input_values); 240 241 static const struct snd_kcontrol_new sdw1_tx3_mux = 242 SOC_DAPM_ENUM("SDW1TX3 SRC", cs35l56_sdw1tx3_enum); 243 244 static SOC_VALUE_ENUM_SINGLE_DECL(cs35l56_sdw1tx4_enum, 245 CS35L56_SWIRE_DP3_CH4_INPUT, 246 0, CS35L56_SWIRETXn_SRC_MASK, 247 cs35l56_tx_input_texts, 248 cs35l56_tx_input_values); 249 250 static const struct snd_kcontrol_new sdw1_tx4_mux = 251 SOC_DAPM_ENUM("SDW1TX4 SRC", cs35l56_sdw1tx4_enum); 252 253 static int cs35l56_play_event(struct snd_soc_dapm_widget *w, 254 struct snd_kcontrol *kcontrol, int event) 255 { 256 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 257 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component); 258 unsigned int val; 259 int ret; 260 261 dev_dbg(cs35l56->base.dev, "play: %d\n", event); 262 263 switch (event) { 264 case SND_SOC_DAPM_PRE_PMU: 265 /* Don't wait for ACK, we check in POST_PMU that it completed */ 266 return regmap_write(cs35l56->base.regmap, CS35L56_DSP_VIRTUAL1_MBOX_1, 267 CS35L56_MBOX_CMD_AUDIO_PLAY); 268 case SND_SOC_DAPM_POST_PMU: 269 /* Wait for firmware to enter PS0 power state */ 270 ret = regmap_read_poll_timeout(cs35l56->base.regmap, 271 cs35l56->base.fw_reg->transducer_actual_ps, 272 val, (val == CS35L56_PS0), 273 CS35L56_PS0_POLL_US, 274 CS35L56_PS0_TIMEOUT_US); 275 if (ret) 276 dev_err(cs35l56->base.dev, "PS0 wait failed: %d\n", ret); 277 return ret; 278 case SND_SOC_DAPM_POST_PMD: 279 return cs35l56_mbox_send(&cs35l56->base, CS35L56_MBOX_CMD_AUDIO_PAUSE); 280 default: 281 return 0; 282 } 283 } 284 285 static const struct snd_soc_dapm_widget cs35l56_dapm_widgets[] = { 286 SND_SOC_DAPM_REGULATOR_SUPPLY("VDD_B", 0, 0), 287 SND_SOC_DAPM_REGULATOR_SUPPLY("VDD_AMP", 0, 0), 288 289 SND_SOC_DAPM_SUPPLY("PLAY", SND_SOC_NOPM, 0, 0, cs35l56_play_event, 290 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), 291 292 SND_SOC_DAPM_OUT_DRV("AMP", SND_SOC_NOPM, 0, 0, NULL, 0), 293 SND_SOC_DAPM_OUTPUT("SPK"), 294 295 SND_SOC_DAPM_PGA_E("DSP1", SND_SOC_NOPM, 0, 0, NULL, 0, cs35l56_dsp_event, 296 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 297 298 SND_SOC_DAPM_AIF_IN("ASP1RX1", NULL, 0, CS35L56_ASP1_ENABLES1, 299 CS35L56_ASP_RX1_EN_SHIFT, 0), 300 SND_SOC_DAPM_AIF_IN("ASP1RX2", NULL, 1, CS35L56_ASP1_ENABLES1, 301 CS35L56_ASP_RX2_EN_SHIFT, 0), 302 SND_SOC_DAPM_AIF_OUT("ASP1TX1", NULL, 0, CS35L56_ASP1_ENABLES1, 303 CS35L56_ASP_TX1_EN_SHIFT, 0), 304 SND_SOC_DAPM_AIF_OUT("ASP1TX2", NULL, 1, CS35L56_ASP1_ENABLES1, 305 CS35L56_ASP_TX2_EN_SHIFT, 0), 306 SND_SOC_DAPM_AIF_OUT("ASP1TX3", NULL, 2, CS35L56_ASP1_ENABLES1, 307 CS35L56_ASP_TX3_EN_SHIFT, 0), 308 SND_SOC_DAPM_AIF_OUT("ASP1TX4", NULL, 3, CS35L56_ASP1_ENABLES1, 309 CS35L56_ASP_TX4_EN_SHIFT, 0), 310 311 SND_SOC_DAPM_MUX("ASP1 TX1 Source", SND_SOC_NOPM, 0, 0, &asp1_tx1_mux), 312 SND_SOC_DAPM_MUX("ASP1 TX2 Source", SND_SOC_NOPM, 0, 0, &asp1_tx2_mux), 313 SND_SOC_DAPM_MUX("ASP1 TX3 Source", SND_SOC_NOPM, 0, 0, &asp1_tx3_mux), 314 SND_SOC_DAPM_MUX("ASP1 TX4 Source", SND_SOC_NOPM, 0, 0, &asp1_tx4_mux), 315 316 SND_SOC_DAPM_MUX("SDW1 TX1 Source", SND_SOC_NOPM, 0, 0, &sdw1_tx1_mux), 317 SND_SOC_DAPM_MUX("SDW1 TX2 Source", SND_SOC_NOPM, 0, 0, &sdw1_tx2_mux), 318 SND_SOC_DAPM_MUX("SDW1 TX3 Source", SND_SOC_NOPM, 0, 0, &sdw1_tx3_mux), 319 SND_SOC_DAPM_MUX("SDW1 TX4 Source", SND_SOC_NOPM, 0, 0, &sdw1_tx4_mux), 320 321 SND_SOC_DAPM_SIGGEN("VMON ADC"), 322 SND_SOC_DAPM_SIGGEN("IMON ADC"), 323 SND_SOC_DAPM_SIGGEN("ERRVOL ADC"), 324 SND_SOC_DAPM_SIGGEN("CLASSH ADC"), 325 SND_SOC_DAPM_SIGGEN("VDDBMON ADC"), 326 SND_SOC_DAPM_SIGGEN("VBSTMON ADC"), 327 SND_SOC_DAPM_SIGGEN("TEMPMON ADC"), 328 SND_SOC_DAPM_SIGGEN("OT25 Reference"), 329 330 SND_SOC_DAPM_INPUT("Calibrate"), 331 }; 332 333 #define CS35L56_SRC_ROUTE(name) \ 334 { name" Source", "ASP1RX1", "ASP1RX1" }, \ 335 { name" Source", "ASP1RX2", "ASP1RX2" }, \ 336 { name" Source", "VMON", "VMON ADC" }, \ 337 { name" Source", "IMON", "IMON ADC" }, \ 338 { name" Source", "ERRVOL", "ERRVOL ADC" }, \ 339 { name" Source", "CLASSH", "CLASSH ADC" }, \ 340 { name" Source", "VDDBMON", "VDDBMON ADC" }, \ 341 { name" Source", "VBSTMON", "VBSTMON ADC" }, \ 342 { name" Source", "DSP1TX1", "DSP1" }, \ 343 { name" Source", "DSP1TX2", "DSP1" }, \ 344 { name" Source", "DSP1TX3", "DSP1" }, \ 345 { name" Source", "DSP1TX4", "DSP1" }, \ 346 { name" Source", "DSP1TX5", "DSP1" }, \ 347 { name" Source", "DSP1TX6", "DSP1" }, \ 348 { name" Source", "DSP1TX7", "DSP1" }, \ 349 { name" Source", "DSP1TX8", "DSP1" }, \ 350 { name" Source", "TEMPMON", "TEMPMON ADC" }, \ 351 { name" Source", "INTERPOLATOR", "AMP" }, \ 352 { name" Source", "SDW1RX1", "SDW1 Playback" }, \ 353 { name" Source", "SDW1RX2", "SDW1 Playback" }, 354 355 static const struct snd_soc_dapm_route cs35l56_audio_map[] = { 356 { "AMP", NULL, "VDD_B" }, 357 { "AMP", NULL, "VDD_AMP" }, 358 359 { "ASP1 Playback", NULL, "PLAY" }, 360 { "SDW1 Playback", NULL, "PLAY" }, 361 362 { "ASP1RX1", NULL, "ASP1 Playback" }, 363 { "ASP1RX2", NULL, "ASP1 Playback" }, 364 { "DSP1", NULL, "ASP1RX1" }, 365 { "DSP1", NULL, "ASP1RX2" }, 366 { "DSP1", NULL, "SDW1 Playback" }, 367 { "DSP1", NULL, "Calibrate" }, 368 { "AMP", NULL, "DSP1" }, 369 { "SPK", NULL, "AMP" }, 370 371 CS35L56_SRC_ROUTE("ASP1 TX1") 372 CS35L56_SRC_ROUTE("ASP1 TX2") 373 CS35L56_SRC_ROUTE("ASP1 TX3") 374 CS35L56_SRC_ROUTE("ASP1 TX4") 375 376 { "ASP1TX1", NULL, "ASP1 TX1 Source" }, 377 { "ASP1TX2", NULL, "ASP1 TX2 Source" }, 378 { "ASP1TX3", NULL, "ASP1 TX3 Source" }, 379 { "ASP1TX4", NULL, "ASP1 TX4 Source" }, 380 { "ASP1 Capture", NULL, "ASP1TX1" }, 381 { "ASP1 Capture", NULL, "ASP1TX2" }, 382 { "ASP1 Capture", NULL, "ASP1TX3" }, 383 { "ASP1 Capture", NULL, "ASP1TX4" }, 384 385 CS35L56_SRC_ROUTE("SDW1 TX1") 386 CS35L56_SRC_ROUTE("SDW1 TX2") 387 CS35L56_SRC_ROUTE("SDW1 TX3") 388 CS35L56_SRC_ROUTE("SDW1 TX4") 389 { "SDW1 Capture", NULL, "SDW1 TX1 Source" }, 390 { "SDW1 Capture", NULL, "SDW1 TX2 Source" }, 391 { "SDW1 Capture", NULL, "SDW1 TX3 Source" }, 392 { "SDW1 Capture", NULL, "SDW1 TX4 Source" }, 393 394 { "OT25", NULL, "OT25 Reference" }, 395 }; 396 397 static int cs35l56_dsp_event(struct snd_soc_dapm_widget *w, 398 struct snd_kcontrol *kcontrol, int event) 399 { 400 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 401 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component); 402 403 dev_dbg(cs35l56->base.dev, "%s: %d\n", __func__, event); 404 405 return wm_adsp_event(w, kcontrol, event); 406 } 407 408 static int cs35l56_asp_dai_probe(struct snd_soc_dai *codec_dai) 409 { 410 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(codec_dai->component); 411 412 return cs35l56_set_asp_patch(&cs35l56->base); 413 } 414 415 static int cs35l56_asp_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) 416 { 417 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(codec_dai->component); 418 unsigned int val; 419 420 dev_dbg(cs35l56->base.dev, "%s: %#x\n", __func__, fmt); 421 422 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { 423 case SND_SOC_DAIFMT_CBC_CFC: 424 break; 425 default: 426 dev_err(cs35l56->base.dev, "Unsupported clock source mode\n"); 427 return -EINVAL; 428 } 429 430 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 431 case SND_SOC_DAIFMT_DSP_A: 432 val = CS35L56_ASP_FMT_DSP_A << CS35L56_ASP_FMT_SHIFT; 433 cs35l56->tdm_mode = true; 434 break; 435 case SND_SOC_DAIFMT_I2S: 436 val = CS35L56_ASP_FMT_I2S << CS35L56_ASP_FMT_SHIFT; 437 cs35l56->tdm_mode = false; 438 break; 439 default: 440 dev_err(cs35l56->base.dev, "Unsupported DAI format\n"); 441 return -EINVAL; 442 } 443 444 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 445 case SND_SOC_DAIFMT_NB_IF: 446 val |= CS35L56_ASP_FSYNC_INV_MASK; 447 break; 448 case SND_SOC_DAIFMT_IB_NF: 449 val |= CS35L56_ASP_BCLK_INV_MASK; 450 break; 451 case SND_SOC_DAIFMT_IB_IF: 452 val |= CS35L56_ASP_BCLK_INV_MASK | CS35L56_ASP_FSYNC_INV_MASK; 453 break; 454 case SND_SOC_DAIFMT_NB_NF: 455 break; 456 default: 457 dev_err(cs35l56->base.dev, "Invalid clock invert\n"); 458 return -EINVAL; 459 } 460 461 regmap_update_bits(cs35l56->base.regmap, 462 CS35L56_ASP1_CONTROL2, 463 CS35L56_ASP_FMT_MASK | 464 CS35L56_ASP_BCLK_INV_MASK | CS35L56_ASP_FSYNC_INV_MASK, 465 val); 466 467 /* Hi-Z DOUT in unused slots and when all TX are disabled */ 468 regmap_update_bits(cs35l56->base.regmap, CS35L56_ASP1_CONTROL3, 469 CS35L56_ASP1_DOUT_HIZ_CTRL_MASK, 470 CS35L56_ASP_UNUSED_HIZ_OFF_HIZ); 471 472 return 0; 473 } 474 475 static unsigned int cs35l56_make_tdm_config_word(unsigned int reg_val, unsigned long mask) 476 { 477 unsigned int channel_shift; 478 int bit_num; 479 480 /* Enable consecutive TX1..TXn for each of the slots set in mask */ 481 channel_shift = 0; 482 for_each_set_bit(bit_num, &mask, 32) { 483 reg_val &= ~(0x3f << channel_shift); 484 reg_val |= bit_num << channel_shift; 485 channel_shift += 8; 486 if (channel_shift > 24) 487 break; 488 } 489 490 return reg_val; 491 } 492 493 static int cs35l56_asp_dai_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, 494 unsigned int rx_mask, int slots, int slot_width) 495 { 496 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(dai->component); 497 498 if ((slots == 0) || (slot_width == 0)) { 499 dev_dbg(cs35l56->base.dev, "tdm config cleared\n"); 500 cs35l56->asp_slot_width = 0; 501 cs35l56->asp_slot_count = 0; 502 return 0; 503 } 504 505 if (slot_width > (CS35L56_ASP_RX_WIDTH_MASK >> CS35L56_ASP_RX_WIDTH_SHIFT)) { 506 dev_err(cs35l56->base.dev, "tdm invalid slot width %d\n", slot_width); 507 return -EINVAL; 508 } 509 510 /* More than 32 slots would give an unsupportable BCLK frequency */ 511 if (slots > 32) { 512 dev_err(cs35l56->base.dev, "tdm invalid slot count %d\n", slots); 513 return -EINVAL; 514 } 515 516 cs35l56->asp_slot_width = (u8)slot_width; 517 cs35l56->asp_slot_count = (u8)slots; 518 519 // Note: rx/tx is from point of view of the CPU end 520 if (tx_mask == 0) 521 tx_mask = 0x3; // ASPRX1/RX2 in slots 0 and 1 522 523 if (rx_mask == 0) 524 rx_mask = 0xf; // ASPTX1..TX4 in slots 0..3 525 526 /* Default unused slots to 63 */ 527 regmap_write(cs35l56->base.regmap, CS35L56_ASP1_FRAME_CONTROL1, 528 cs35l56_make_tdm_config_word(0x3f3f3f3f, rx_mask)); 529 regmap_write(cs35l56->base.regmap, CS35L56_ASP1_FRAME_CONTROL5, 530 cs35l56_make_tdm_config_word(0x3f3f3f, tx_mask)); 531 532 dev_dbg(cs35l56->base.dev, "tdm slot width: %u count: %u tx_mask: %#x rx_mask: %#x\n", 533 cs35l56->asp_slot_width, cs35l56->asp_slot_count, tx_mask, rx_mask); 534 535 return 0; 536 } 537 538 static int cs35l56_asp_dai_hw_params(struct snd_pcm_substream *substream, 539 struct snd_pcm_hw_params *params, 540 struct snd_soc_dai *dai) 541 { 542 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(dai->component); 543 unsigned int rate = params_rate(params); 544 u8 asp_width, asp_wl; 545 546 asp_wl = params_width(params); 547 if (cs35l56->asp_slot_width) 548 asp_width = cs35l56->asp_slot_width; 549 else 550 asp_width = asp_wl; 551 552 dev_dbg(cs35l56->base.dev, "%s: wl=%d, width=%d, rate=%d", 553 __func__, asp_wl, asp_width, rate); 554 555 if (!cs35l56->sysclk_set) { 556 unsigned int slots = cs35l56->asp_slot_count; 557 unsigned int bclk_freq; 558 int freq_id; 559 560 if (slots == 0) { 561 slots = params_channels(params); 562 563 /* I2S always has an even number of slots */ 564 if (!cs35l56->tdm_mode) 565 slots = round_up(slots, 2); 566 } 567 568 bclk_freq = asp_width * slots * rate; 569 freq_id = cs35l56_get_bclk_freq_id(bclk_freq); 570 if (freq_id < 0) { 571 dev_err(cs35l56->base.dev, "%s: Invalid BCLK %u\n", __func__, bclk_freq); 572 return -EINVAL; 573 } 574 575 regmap_update_bits(cs35l56->base.regmap, CS35L56_ASP1_CONTROL1, 576 CS35L56_ASP_BCLK_FREQ_MASK, 577 freq_id << CS35L56_ASP_BCLK_FREQ_SHIFT); 578 } 579 580 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 581 regmap_update_bits(cs35l56->base.regmap, CS35L56_ASP1_CONTROL2, 582 CS35L56_ASP_RX_WIDTH_MASK, asp_width << 583 CS35L56_ASP_RX_WIDTH_SHIFT); 584 regmap_update_bits(cs35l56->base.regmap, CS35L56_ASP1_DATA_CONTROL5, 585 CS35L56_ASP_RX_WL_MASK, asp_wl); 586 } else { 587 regmap_update_bits(cs35l56->base.regmap, CS35L56_ASP1_CONTROL2, 588 CS35L56_ASP_TX_WIDTH_MASK, asp_width << 589 CS35L56_ASP_TX_WIDTH_SHIFT); 590 regmap_update_bits(cs35l56->base.regmap, CS35L56_ASP1_DATA_CONTROL1, 591 CS35L56_ASP_TX_WL_MASK, asp_wl); 592 } 593 594 return 0; 595 } 596 597 static int cs35l56_asp_dai_set_sysclk(struct snd_soc_dai *dai, 598 int clk_id, unsigned int freq, int dir) 599 { 600 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(dai->component); 601 int freq_id; 602 603 if (freq == 0) { 604 cs35l56->sysclk_set = false; 605 return 0; 606 } 607 608 freq_id = cs35l56_get_bclk_freq_id(freq); 609 if (freq_id < 0) 610 return freq_id; 611 612 regmap_update_bits(cs35l56->base.regmap, CS35L56_ASP1_CONTROL1, 613 CS35L56_ASP_BCLK_FREQ_MASK, 614 freq_id << CS35L56_ASP_BCLK_FREQ_SHIFT); 615 cs35l56->sysclk_set = true; 616 617 return 0; 618 } 619 620 static const struct snd_soc_dai_ops cs35l56_ops = { 621 .probe = cs35l56_asp_dai_probe, 622 .set_fmt = cs35l56_asp_dai_set_fmt, 623 .set_tdm_slot = cs35l56_asp_dai_set_tdm_slot, 624 .hw_params = cs35l56_asp_dai_hw_params, 625 .set_sysclk = cs35l56_asp_dai_set_sysclk, 626 }; 627 628 static void cs35l56_sdw_dai_shutdown(struct snd_pcm_substream *substream, 629 struct snd_soc_dai *dai) 630 { 631 snd_soc_dai_set_dma_data(dai, substream, NULL); 632 } 633 634 static int cs35l56_sdw_dai_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, 635 unsigned int rx_mask, int slots, int slot_width) 636 { 637 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(dai->component); 638 639 /* rx/tx are from point of view of the CPU end so opposite to our rx/tx */ 640 cs35l56->rx_mask = tx_mask; 641 cs35l56->tx_mask = rx_mask; 642 643 return 0; 644 } 645 646 static int cs35l56_sdw_dai_hw_params(struct snd_pcm_substream *substream, 647 struct snd_pcm_hw_params *params, 648 struct snd_soc_dai *dai) 649 { 650 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(dai->component); 651 struct sdw_stream_runtime *sdw_stream = snd_soc_dai_get_dma_data(dai, substream); 652 struct sdw_stream_config sconfig; 653 struct sdw_port_config pconfig; 654 int ret; 655 656 dev_dbg(cs35l56->base.dev, "%s: rate %d\n", __func__, params_rate(params)); 657 658 if (!cs35l56->base.init_done) 659 return -ENODEV; 660 661 if (!sdw_stream) 662 return -EINVAL; 663 664 memset(&sconfig, 0, sizeof(sconfig)); 665 memset(&pconfig, 0, sizeof(pconfig)); 666 667 sconfig.frame_rate = params_rate(params); 668 sconfig.bps = snd_pcm_format_width(params_format(params)); 669 670 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 671 sconfig.direction = SDW_DATA_DIR_RX; 672 pconfig.num = CS35L56_SDW1_PLAYBACK_PORT; 673 pconfig.ch_mask = cs35l56->rx_mask; 674 } else { 675 sconfig.direction = SDW_DATA_DIR_TX; 676 pconfig.num = CS35L56_SDW1_CAPTURE_PORT; 677 pconfig.ch_mask = cs35l56->tx_mask; 678 } 679 680 if (pconfig.ch_mask == 0) { 681 sconfig.ch_count = params_channels(params); 682 pconfig.ch_mask = GENMASK(sconfig.ch_count - 1, 0); 683 } else { 684 sconfig.ch_count = hweight32(pconfig.ch_mask); 685 } 686 687 ret = sdw_stream_add_slave(cs35l56->sdw_peripheral, &sconfig, &pconfig, 688 1, sdw_stream); 689 if (ret) { 690 dev_err(dai->dev, "Failed to add sdw stream: %d\n", ret); 691 return ret; 692 } 693 694 return 0; 695 } 696 697 static int cs35l56_sdw_dai_hw_free(struct snd_pcm_substream *substream, 698 struct snd_soc_dai *dai) 699 { 700 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(dai->component); 701 struct sdw_stream_runtime *sdw_stream = snd_soc_dai_get_dma_data(dai, substream); 702 703 if (!cs35l56->sdw_peripheral) 704 return -EINVAL; 705 706 sdw_stream_remove_slave(cs35l56->sdw_peripheral, sdw_stream); 707 708 return 0; 709 } 710 711 static int cs35l56_sdw_dai_set_stream(struct snd_soc_dai *dai, 712 void *sdw_stream, int direction) 713 { 714 snd_soc_dai_dma_data_set(dai, direction, sdw_stream); 715 716 return 0; 717 } 718 719 static int cs35l56_ot25_dai_hw_params(struct snd_pcm_substream *substream, 720 struct snd_pcm_hw_params *params, 721 struct snd_soc_dai *dai) 722 { 723 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(dai->component); 724 struct sdw_stream_runtime *sdw_stream = snd_soc_dai_get_dma_data(dai, substream); 725 struct sdw_stream_config sconfig = { }; 726 struct sdw_port_config pconfig = { }; 727 int ret; 728 729 dev_dbg(cs35l56->base.dev, "%s: rate %d\n", __func__, params_rate(params)); 730 731 if (!cs35l56->base.init_done) 732 return -ENODEV; 733 734 if (!sdw_stream) 735 return -EINVAL; 736 737 snd_sdw_params_to_config(substream, params, &sconfig, &pconfig); 738 pconfig.num = CS35L56_OT25_CAPTURE_PORT; 739 740 ret = sdw_stream_add_slave(cs35l56->sdw_peripheral, &sconfig, &pconfig, 741 1, sdw_stream); 742 if (ret) { 743 dev_err(dai->dev, "Failed to add OT25 stream: %d\n", ret); 744 return ret; 745 } 746 747 return 0; 748 } 749 750 static const struct snd_soc_dai_ops cs35l56_sdw_dai_ops = { 751 .set_tdm_slot = cs35l56_sdw_dai_set_tdm_slot, 752 .shutdown = cs35l56_sdw_dai_shutdown, 753 .hw_params = cs35l56_sdw_dai_hw_params, 754 .hw_free = cs35l56_sdw_dai_hw_free, 755 .set_stream = cs35l56_sdw_dai_set_stream, 756 }; 757 758 static const struct snd_soc_dai_ops cs35l56_ot25_dai_ops = { 759 .shutdown = cs35l56_sdw_dai_shutdown, 760 .hw_params = cs35l56_ot25_dai_hw_params, 761 .hw_free = cs35l56_sdw_dai_hw_free, 762 .set_stream = cs35l56_sdw_dai_set_stream, 763 }; 764 765 static struct snd_soc_dai_driver cs35l56_dai[] = { 766 { 767 .name = "cs35l56-asp1", 768 .id = 0, 769 .playback = { 770 .stream_name = "ASP1 Playback", 771 .channels_min = 1, 772 .channels_max = 2, 773 .rates = CS35L56_RATES, 774 .formats = CS35L56_RX_FORMATS, 775 }, 776 .capture = { 777 .stream_name = "ASP1 Capture", 778 .channels_min = 1, 779 .channels_max = 4, 780 .rates = CS35L56_RATES, 781 .formats = CS35L56_TX_FORMATS, 782 }, 783 .ops = &cs35l56_ops, 784 .symmetric_rate = 1, 785 .symmetric_sample_bits = 1, 786 }, 787 { 788 .name = "cs35l56-sdw1", 789 .id = 1, 790 .playback = { 791 .stream_name = "SDW1 Playback", 792 .channels_min = 1, 793 .channels_max = 2, 794 .rates = CS35L56_RATES, 795 .formats = CS35L56_RX_FORMATS, 796 }, 797 .symmetric_rate = 1, 798 .ops = &cs35l56_sdw_dai_ops, 799 }, 800 { 801 .name = "cs35l56-sdw1c", 802 .id = 2, 803 .capture = { 804 .stream_name = "SDW1 Capture", 805 .channels_min = 1, 806 .channels_max = 4, 807 .rates = CS35L56_RATES, 808 .formats = CS35L56_TX_FORMATS, 809 }, 810 .symmetric_rate = 1, 811 .ops = &cs35l56_sdw_dai_ops, 812 }, 813 { 814 .name = "cs35l56-ot25", 815 .id = 3, 816 .capture = { 817 .stream_name = "OT25", 818 .channels_min = 1, 819 .channels_max = 2, 820 .rates = CS35L56_RATES, 821 .formats = CS35L56_TX_FORMATS, 822 }, 823 .ops = &cs35l56_ot25_dai_ops, 824 }, 825 }; 826 827 static int cs35l56_write_cal(struct cs35l56_private *cs35l56) 828 { 829 int ret; 830 831 if (cs35l56->base.secured || !cs35l56->base.cal_data_valid) 832 return -ENODATA; 833 834 ret = wm_adsp_run(&cs35l56->dsp); 835 if (ret) 836 return ret; 837 838 ret = cs_amp_write_cal_coeffs(&cs35l56->dsp.cs_dsp, 839 cs35l56->base.calibration_controls, 840 &cs35l56->base.cal_data); 841 842 wm_adsp_stop(&cs35l56->dsp); 843 844 if (ret == 0) 845 dev_info(cs35l56->base.dev, "Calibration applied\n"); 846 847 return ret; 848 } 849 850 static int cs35l56_dsp_download_and_power_up(struct cs35l56_private *cs35l56, 851 bool load_firmware) 852 { 853 int ret; 854 855 /* 856 * Abort the first load if it didn't find the suffixed bins and 857 * we have an alternate fallback suffix. 858 */ 859 cs35l56->dsp.bin_mandatory = (load_firmware && cs35l56->fallback_fw_suffix); 860 861 ret = wm_adsp_power_up(&cs35l56->dsp, load_firmware); 862 if ((ret == -ENOENT) && cs35l56->dsp.bin_mandatory) { 863 cs35l56->dsp.fwf_suffix = cs35l56->fallback_fw_suffix; 864 cs35l56->fallback_fw_suffix = NULL; 865 cs35l56->dsp.bin_mandatory = false; 866 ret = wm_adsp_power_up(&cs35l56->dsp, load_firmware); 867 } 868 869 if (ret) { 870 dev_dbg(cs35l56->base.dev, "wm_adsp_power_up ret %d\n", ret); 871 return ret; 872 } 873 874 return 0; 875 } 876 877 static void cs35l56_reinit_patch(struct cs35l56_private *cs35l56) 878 { 879 int ret; 880 881 ret = cs35l56_dsp_download_and_power_up(cs35l56, true); 882 if (ret) 883 return; 884 885 cs35l56_write_cal(cs35l56); 886 887 /* Always REINIT after applying patch or coefficients */ 888 cs35l56_mbox_send(&cs35l56->base, CS35L56_MBOX_CMD_AUDIO_REINIT); 889 } 890 891 static void cs35l56_patch(struct cs35l56_private *cs35l56, bool firmware_missing) 892 { 893 int ret; 894 895 /* Disable SoundWire interrupts to prevent race with IRQ handler thread */ 896 cs35l56_disable_sdw_interrupts(cs35l56); 897 898 ret = cs35l56_firmware_shutdown(&cs35l56->base); 899 if (ret) 900 goto err; 901 902 /* 903 * Use wm_adsp to load and apply the firmware patch and coefficient files, 904 * but only if firmware is missing. If firmware is already patched just 905 * power-up wm_adsp without downloading firmware. 906 */ 907 ret = cs35l56_dsp_download_and_power_up(cs35l56, firmware_missing); 908 if (ret) 909 goto err; 910 911 mutex_lock(&cs35l56->base.irq_lock); 912 913 reinit_completion(&cs35l56->init_completion); 914 915 cs35l56->soft_resetting = true; 916 cs35l56_system_reset(&cs35l56->base, !!cs35l56->sdw_peripheral); 917 918 if (cs35l56->sdw_peripheral) { 919 /* 920 * The system-reset causes the CS35L56 to detach from the bus. 921 * Wait for the manager to re-enumerate the CS35L56 and 922 * cs35l56_init() to run again. 923 */ 924 if (!wait_for_completion_timeout(&cs35l56->init_completion, 925 msecs_to_jiffies(5000))) { 926 dev_err(cs35l56->base.dev, "%s: init_completion timed out (SDW)\n", 927 __func__); 928 goto err_unlock; 929 } 930 } else if (cs35l56_init(cs35l56)) { 931 goto err_unlock; 932 } 933 934 /* Check if the firmware is still reported missing */ 935 cs35l56_warn_if_firmware_missing(&cs35l56->base); 936 937 regmap_clear_bits(cs35l56->base.regmap, 938 cs35l56->base.fw_reg->prot_sts, 939 CS35L56_FIRMWARE_MISSING); 940 cs35l56->base.fw_patched = true; 941 942 if (cs35l56_write_cal(cs35l56) == 0) 943 cs35l56_mbox_send(&cs35l56->base, CS35L56_MBOX_CMD_AUDIO_REINIT); 944 945 err_unlock: 946 mutex_unlock(&cs35l56->base.irq_lock); 947 err: 948 cs35l56_enable_sdw_interrupts(cs35l56); 949 } 950 951 static void cs35l56_dsp_work(struct work_struct *work) 952 { 953 struct cs35l56_private *cs35l56 = container_of(work, 954 struct cs35l56_private, 955 dsp_work); 956 unsigned int firmware_version; 957 bool firmware_missing; 958 int ret; 959 960 if (!cs35l56->base.init_done) 961 return; 962 963 PM_RUNTIME_ACQUIRE(cs35l56->base.dev, pm); 964 ret = PM_RUNTIME_ACQUIRE_ERR(&pm); 965 if (ret) { 966 dev_err(cs35l56->base.dev, "dsp_work failed to runtime-resume: %d\n", ret); 967 return; 968 } 969 970 ret = cs35l56_read_prot_status(&cs35l56->base, &firmware_missing, &firmware_version); 971 if (ret) 972 return; 973 974 /* Populate fw file qualifier with the revision and security state */ 975 kfree(cs35l56->dsp.fwf_name); 976 if (firmware_missing) { 977 cs35l56->dsp.fwf_name = kasprintf(GFP_KERNEL, "%02x-dsp1", cs35l56->base.rev); 978 } else { 979 /* Firmware files must match the running firmware version */ 980 cs35l56->dsp.fwf_name = kasprintf(GFP_KERNEL, 981 "%02x%s-%06x-dsp1", 982 cs35l56->base.rev, 983 cs35l56->base.secured ? "-s" : "", 984 firmware_version); 985 } 986 987 if (!cs35l56->dsp.fwf_name) 988 return; 989 990 dev_dbg(cs35l56->base.dev, "DSP fwf name: '%s' system name: '%s'\n", 991 cs35l56->dsp.fwf_name, cs35l56->dsp.system_name); 992 993 /* 994 * The firmware cannot be patched if it is already running from 995 * patch RAM. In this case the firmware files are versioned to 996 * match the running firmware version and will only contain 997 * tunings. We do not need to shutdown the firmware to apply 998 * tunings so can use the lower cost reinit sequence instead. 999 */ 1000 if (!firmware_missing) 1001 cs35l56_reinit_patch(cs35l56); 1002 else 1003 cs35l56_patch(cs35l56, firmware_missing); 1004 1005 cs35l56_log_tuning(&cs35l56->base, &cs35l56->dsp.cs_dsp); 1006 } 1007 1008 static struct snd_soc_dapm_context *cs35l56_power_up_for_cal(struct cs35l56_private *cs35l56) 1009 { 1010 struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(cs35l56->component); 1011 int ret; 1012 1013 ret = snd_soc_dapm_enable_pin(dapm, "Calibrate"); 1014 if (ret) 1015 return ERR_PTR(ret); 1016 1017 snd_soc_dapm_sync(dapm); 1018 1019 return dapm; 1020 } 1021 1022 static void cs35l56_power_down_after_cal(struct cs35l56_private *cs35l56) 1023 { 1024 struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(cs35l56->component); 1025 1026 snd_soc_dapm_disable_pin(dapm, "Calibrate"); 1027 snd_soc_dapm_sync(dapm); 1028 } 1029 1030 static ssize_t cs35l56_debugfs_calibrate_write(struct file *file, 1031 const char __user *from, 1032 size_t count, loff_t *ppos) 1033 { 1034 struct cs35l56_base *cs35l56_base = file->private_data; 1035 struct cs35l56_private *cs35l56 = cs35l56_private_from_base(cs35l56_base); 1036 struct snd_soc_dapm_context *dapm; 1037 ssize_t ret; 1038 1039 dapm = cs35l56_power_up_for_cal(cs35l56); 1040 if (IS_ERR(dapm)) 1041 return PTR_ERR(dapm); 1042 1043 snd_soc_dapm_mutex_lock(dapm); 1044 ret = cs35l56_calibrate_debugfs_write(&cs35l56->base, from, count, ppos); 1045 snd_soc_dapm_mutex_unlock(dapm); 1046 1047 cs35l56_power_down_after_cal(cs35l56); 1048 1049 return ret; 1050 } 1051 1052 static ssize_t cs35l56_debugfs_cal_temperature_write(struct file *file, 1053 const char __user *from, 1054 size_t count, loff_t *ppos) 1055 { 1056 struct cs35l56_base *cs35l56_base = file->private_data; 1057 struct cs35l56_private *cs35l56 = cs35l56_private_from_base(cs35l56_base); 1058 struct snd_soc_dapm_context *dapm; 1059 ssize_t ret; 1060 1061 dapm = cs35l56_power_up_for_cal(cs35l56); 1062 if (IS_ERR(dapm)) 1063 return PTR_ERR(dapm); 1064 1065 ret = cs35l56_cal_ambient_debugfs_write(&cs35l56->base, from, count, ppos); 1066 cs35l56_power_down_after_cal(cs35l56); 1067 1068 return ret; 1069 } 1070 1071 static ssize_t cs35l56_debugfs_cal_data_read(struct file *file, 1072 char __user *to, 1073 size_t count, loff_t *ppos) 1074 { 1075 struct cs35l56_base *cs35l56_base = file->private_data; 1076 struct cs35l56_private *cs35l56 = cs35l56_private_from_base(cs35l56_base); 1077 struct snd_soc_dapm_context *dapm; 1078 ssize_t ret; 1079 1080 dapm = cs35l56_power_up_for_cal(cs35l56); 1081 if (IS_ERR(dapm)) 1082 return PTR_ERR(dapm); 1083 1084 ret = cs35l56_cal_data_debugfs_read(&cs35l56->base, to, count, ppos); 1085 cs35l56_power_down_after_cal(cs35l56); 1086 1087 return ret; 1088 } 1089 1090 static int cs35l56_new_cal_data_apply(struct cs35l56_private *cs35l56) 1091 { 1092 struct snd_soc_dapm_context *dapm; 1093 int ret; 1094 1095 if (!cs35l56->base.cal_data_valid) 1096 return -ENXIO; 1097 1098 if (cs35l56->base.secured) 1099 return -EACCES; 1100 1101 dapm = cs35l56_power_up_for_cal(cs35l56); 1102 if (IS_ERR(dapm)) 1103 return PTR_ERR(dapm); 1104 1105 snd_soc_dapm_mutex_lock(dapm); 1106 ret = cs_amp_write_cal_coeffs(&cs35l56->dsp.cs_dsp, 1107 cs35l56->base.calibration_controls, 1108 &cs35l56->base.cal_data); 1109 if (ret == 0) 1110 cs35l56_mbox_send(&cs35l56->base, CS35L56_MBOX_CMD_AUDIO_REINIT); 1111 else 1112 ret = -EIO; 1113 1114 snd_soc_dapm_mutex_unlock(dapm); 1115 cs35l56_power_down_after_cal(cs35l56); 1116 1117 return ret; 1118 } 1119 1120 static ssize_t cs35l56_debugfs_cal_data_write(struct file *file, 1121 const char __user *from, 1122 size_t count, loff_t *ppos) 1123 { 1124 struct cs35l56_base *cs35l56_base = file->private_data; 1125 struct cs35l56_private *cs35l56 = cs35l56_private_from_base(cs35l56_base); 1126 int ret; 1127 1128 ret = cs35l56_cal_data_debugfs_write(&cs35l56->base, from, count, ppos); 1129 if (ret == -ENODATA) 1130 return count; /* Ignore writes of empty cal blobs */ 1131 else if (ret < 0) 1132 return -EIO; 1133 1134 ret = cs35l56_new_cal_data_apply(cs35l56); 1135 if (ret) 1136 return ret; 1137 1138 return count; 1139 } 1140 1141 static const struct cs35l56_cal_debugfs_fops cs35l56_cal_debugfs_fops = { 1142 .calibrate = { 1143 .write = cs35l56_debugfs_calibrate_write, 1144 }, 1145 .cal_temperature = { 1146 .write = cs35l56_debugfs_cal_temperature_write, 1147 }, 1148 .cal_data = { 1149 .read = cs35l56_debugfs_cal_data_read, 1150 .write = cs35l56_debugfs_cal_data_write, 1151 }, 1152 }; 1153 1154 static int cs35l56_cal_data_rb_ctl_get(struct snd_kcontrol *kcontrol, 1155 struct snd_ctl_elem_value *ucontrol) 1156 { 1157 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 1158 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component); 1159 1160 if (!cs35l56->base.cal_data_valid) 1161 return -ENODATA; 1162 1163 memcpy(ucontrol->value.bytes.data, &cs35l56->base.cal_data, 1164 sizeof(cs35l56->base.cal_data)); 1165 1166 return 0; 1167 } 1168 1169 static int cs35l56_cal_data_ctl_get(struct snd_kcontrol *kcontrol, 1170 struct snd_ctl_elem_value *ucontrol) 1171 { 1172 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 1173 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component); 1174 1175 /* 1176 * This control is write-only but mixer libraries often try to read 1177 * a control before writing it. So we have to implement read. 1178 * Return zeros so a write of valid data will always be a change 1179 * from its "current value". 1180 */ 1181 memset(ucontrol->value.bytes.data, 0, sizeof(cs35l56->base.cal_data)); 1182 1183 return 0; 1184 } 1185 1186 static int cs35l56_cal_data_ctl_set(struct snd_kcontrol *kcontrol, 1187 struct snd_ctl_elem_value *ucontrol) 1188 { 1189 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 1190 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component); 1191 const struct cirrus_amp_cal_data *cal_data = (const void *)ucontrol->value.bytes.data; 1192 int ret; 1193 1194 if (cs35l56->base.cal_data_valid) 1195 return -EACCES; 1196 1197 ret = cs35l56_stash_calibration(&cs35l56->base, cal_data); 1198 if (ret) 1199 return ret; 1200 1201 ret = cs35l56_new_cal_data_apply(cs35l56); 1202 if (ret < 0) 1203 return ret; 1204 1205 return 1; 1206 } 1207 1208 static int cs35l56_cal_ambient_ctl_get(struct snd_kcontrol *kcontrol, 1209 struct snd_ctl_elem_value *ucontrol) 1210 { 1211 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 1212 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component); 1213 1214 ucontrol->value.integer.value[0] = cs35l56->ambient_ctl_value; 1215 1216 return 0; 1217 } 1218 1219 static int cs35l56_cal_ambient_ctl_set(struct snd_kcontrol *kcontrol, 1220 struct snd_ctl_elem_value *ucontrol) 1221 { 1222 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 1223 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component); 1224 struct snd_soc_dapm_context *dapm; 1225 int temperature = ucontrol->value.integer.value[0]; 1226 int ret; 1227 1228 if (temperature == cs35l56->ambient_ctl_value) 1229 return 0; 1230 1231 if ((temperature < 0) || (temperature > 40)) 1232 return -EINVAL; 1233 1234 dapm = cs35l56_power_up_for_cal(cs35l56); 1235 if (IS_ERR(dapm)) 1236 return PTR_ERR(dapm); 1237 1238 ret = cs_amp_write_ambient_temp(&cs35l56->dsp.cs_dsp, 1239 cs35l56->base.calibration_controls, 1240 temperature); 1241 cs35l56_power_down_after_cal(cs35l56); 1242 1243 if (ret) 1244 return ret; 1245 1246 cs35l56->ambient_ctl_value = temperature; 1247 1248 return 1; 1249 } 1250 1251 static int cs35l56_calibrate_ctl_get(struct snd_kcontrol *kcontrol, 1252 struct snd_ctl_elem_value *ucontrol) 1253 { 1254 /* 1255 * Allow reading because of user-side libraries that assume all 1256 * controls are readable. But always return false to prevent dumb 1257 * save-restore tools like alsactl accidentically triggering a 1258 * factory calibration when they restore. 1259 */ 1260 ucontrol->value.integer.value[0] = 0; 1261 1262 return 0; 1263 } 1264 1265 static int cs35l56_calibrate_ctl_set(struct snd_kcontrol *kcontrol, 1266 struct snd_ctl_elem_value *ucontrol) 1267 { 1268 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); 1269 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component); 1270 struct snd_soc_dapm_context *dapm; 1271 int ret; 1272 1273 if (ucontrol->value.integer.value[0] == 0) 1274 return 0; 1275 1276 dapm = cs35l56_power_up_for_cal(cs35l56); 1277 if (IS_ERR(dapm)) 1278 return PTR_ERR(dapm); 1279 1280 snd_soc_dapm_mutex_lock(dapm); 1281 ret = cs35l56_factory_calibrate(&cs35l56->base); 1282 snd_soc_dapm_mutex_unlock(dapm); 1283 cs35l56_power_down_after_cal(cs35l56); 1284 if (ret < 0) 1285 return ret; 1286 1287 return 1; 1288 } 1289 1290 static const struct snd_kcontrol_new cs35l56_cal_data_restore_controls[] = { 1291 SND_SOC_BYTES_E("CAL_DATA", 0, sizeof(struct cirrus_amp_cal_data) / sizeof(u32), 1292 cs35l56_cal_data_ctl_get, cs35l56_cal_data_ctl_set), 1293 SND_SOC_BYTES_E_ACC("CAL_DATA_RB", 0, sizeof(struct cirrus_amp_cal_data) / sizeof(u32), 1294 cs35l56_cal_data_rb_ctl_get, NULL, 1295 SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE), 1296 }; 1297 1298 static const struct snd_kcontrol_new cs35l56_cal_perform_controls[] = { 1299 SOC_SINGLE_EXT("CAL_AMBIENT", SND_SOC_NOPM, 0, 40, 0, 1300 cs35l56_cal_ambient_ctl_get, cs35l56_cal_ambient_ctl_set), 1301 SOC_SINGLE_BOOL_EXT_ACC("Calibrate Switch", 0, 1302 cs35l56_calibrate_ctl_get, cs35l56_calibrate_ctl_set, 1303 SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_VOLATILE), 1304 }; 1305 1306 VISIBLE_IF_KUNIT int cs35l56_set_fw_suffix(struct cs35l56_private *cs35l56) 1307 { 1308 unsigned short vendor, device; 1309 const char *vendor_id; 1310 int ret; 1311 1312 if (cs35l56->dsp.fwf_suffix) 1313 return 0; 1314 1315 if (cs35l56->sdw_peripheral) { 1316 cs35l56->dsp.fwf_suffix = devm_kasprintf(cs35l56->base.dev, GFP_KERNEL, 1317 "l%uu%u", 1318 cs35l56->sdw_link_num, 1319 cs35l56->sdw_unique_id); 1320 if (!cs35l56->dsp.fwf_suffix) 1321 return -ENOMEM; 1322 1323 /* 1324 * There are published firmware files for L56 B0 silicon using 1325 * the ALSA prefix as the filename suffix. Default to trying these 1326 * first, with the new SoundWire suffix as a fallback. 1327 * None of these older systems use a vendor-specific ID. 1328 */ 1329 if ((cs35l56->base.type == 0x56) && (cs35l56->base.rev == 0xb0)) { 1330 cs35l56->fallback_fw_suffix = cs35l56->dsp.fwf_suffix; 1331 cs35l56->dsp.fwf_suffix = cs35l56->component->name_prefix; 1332 1333 return 0; 1334 } 1335 } 1336 1337 /* 1338 * Some manufacturers use the same SSID on multiple products and have 1339 * a vendor-specific qualifier to distinguish different models. 1340 * Models with the same SSID but different qualifier might require 1341 * different audio firmware, or they might all have the same audio 1342 * firmware. 1343 * Try searching for a firmware with this qualifier first, else 1344 * fallback to standard naming. 1345 */ 1346 if (snd_soc_card_get_pci_ssid(cs35l56->component->card, &vendor, &device) < 0) { 1347 vendor_id = cs_amp_devm_get_vendor_specific_variant_id(cs35l56->base.dev, -1, -1); 1348 } else { 1349 vendor_id = cs_amp_devm_get_vendor_specific_variant_id(cs35l56->base.dev, 1350 vendor, device); 1351 } 1352 ret = PTR_ERR_OR_ZERO(vendor_id); 1353 if (ret == -ENOENT) 1354 return 0; 1355 else if (ret) 1356 return ret; 1357 1358 if (vendor_id) { 1359 if (cs35l56->dsp.fwf_suffix) 1360 cs35l56->fallback_fw_suffix = cs35l56->dsp.fwf_suffix; 1361 else 1362 cs35l56->fallback_fw_suffix = cs35l56->component->name_prefix; 1363 1364 cs35l56->dsp.fwf_suffix = devm_kasprintf(cs35l56->base.dev, GFP_KERNEL, 1365 "%s-%s", 1366 vendor_id, 1367 cs35l56->fallback_fw_suffix); 1368 if (!cs35l56->dsp.fwf_suffix) 1369 return -ENOMEM; 1370 } 1371 1372 return 0; 1373 } 1374 EXPORT_SYMBOL_IF_KUNIT(cs35l56_set_fw_suffix); 1375 1376 VISIBLE_IF_KUNIT int cs35l56_set_fw_name(struct snd_soc_component *component) 1377 { 1378 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component); 1379 unsigned short vendor, device; 1380 int ret; 1381 1382 if ((cs35l56->speaker_id < 0) && cs35l56->base.num_onchip_spkid_gpios) { 1383 PM_RUNTIME_ACQUIRE(cs35l56->base.dev, pm); 1384 ret = PM_RUNTIME_ACQUIRE_ERR(&pm); 1385 if (ret) 1386 return ret; 1387 1388 ret = cs35l56_configure_onchip_spkid_pads(&cs35l56->base); 1389 if (ret) 1390 return ret; 1391 1392 ret = cs35l56_read_onchip_spkid(&cs35l56->base); 1393 if (ret < 0) 1394 return ret; 1395 1396 cs35l56->speaker_id = ret; 1397 } 1398 1399 if (!cs35l56->dsp.system_name && 1400 (snd_soc_card_get_pci_ssid(component->card, &vendor, &device) == 0)) { 1401 /* Append a speaker qualifier if there is a speaker ID */ 1402 if (cs35l56->speaker_id >= 0) { 1403 cs35l56->dsp.system_name = devm_kasprintf(cs35l56->base.dev, 1404 GFP_KERNEL, 1405 "%04x%04x-spkid%d", 1406 vendor, device, 1407 cs35l56->speaker_id); 1408 } else { 1409 cs35l56->dsp.system_name = devm_kasprintf(cs35l56->base.dev, 1410 GFP_KERNEL, 1411 "%04x%04x", 1412 vendor, device); 1413 } 1414 if (!cs35l56->dsp.system_name) 1415 return -ENOMEM; 1416 } 1417 1418 return 0; 1419 } 1420 EXPORT_SYMBOL_IF_KUNIT(cs35l56_set_fw_name); 1421 1422 static int _cs35l56_component_probe(struct snd_soc_component *component) 1423 { 1424 struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component); 1425 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component); 1426 struct dentry *debugfs_root = component->debugfs_root; 1427 int ret; 1428 1429 BUILD_BUG_ON(ARRAY_SIZE(cs35l56_tx_input_texts) != ARRAY_SIZE(cs35l56_tx_input_values)); 1430 1431 cs35l56->dsp.part = kasprintf(GFP_KERNEL, "cs35l%02x", cs35l56->base.type); 1432 if (!cs35l56->dsp.part) 1433 return -ENOMEM; 1434 1435 cs35l56->component = component; 1436 ret = cs35l56_set_fw_name(component); 1437 if (ret) 1438 return ret; 1439 1440 ret = cs35l56_set_fw_suffix(cs35l56); 1441 if (ret) 1442 return ret; 1443 1444 wm_adsp2_component_probe(&cs35l56->dsp, component); 1445 1446 debugfs_create_bool("init_done", 0444, debugfs_root, &cs35l56->base.init_done); 1447 debugfs_create_bool("can_hibernate", 0444, debugfs_root, &cs35l56->base.can_hibernate); 1448 debugfs_create_bool("fw_patched", 0444, debugfs_root, &cs35l56->base.fw_patched); 1449 1450 1451 switch (cs35l56->base.type) { 1452 case 0x54: 1453 case 0x56: 1454 case 0x57: 1455 ret = snd_soc_add_component_controls(component, cs35l56_controls, 1456 ARRAY_SIZE(cs35l56_controls)); 1457 break; 1458 case 0x63: 1459 case 0x62: 1460 ret = snd_soc_add_component_controls(component, cs35l63_controls, 1461 ARRAY_SIZE(cs35l63_controls)); 1462 break; 1463 default: 1464 ret = -ENODEV; 1465 break; 1466 } 1467 1468 if (!ret && IS_ENABLED(CONFIG_SND_SOC_CS35L56_CAL_SET_CTRL)) { 1469 ret = snd_soc_add_component_controls(component, 1470 cs35l56_cal_data_restore_controls, 1471 ARRAY_SIZE(cs35l56_cal_data_restore_controls)); 1472 } 1473 1474 if (!ret && IS_ENABLED(CONFIG_SND_SOC_CS35L56_CAL_PERFORM_CTRL)) { 1475 ret = snd_soc_add_component_controls(component, 1476 cs35l56_cal_perform_controls, 1477 ARRAY_SIZE(cs35l56_cal_perform_controls)); 1478 } 1479 1480 if (ret) 1481 return dev_err_probe(cs35l56->base.dev, ret, "unable to add controls\n"); 1482 1483 ret = snd_soc_dapm_disable_pin(dapm, "Calibrate"); 1484 if (ret) 1485 return ret; 1486 1487 if (IS_ENABLED(CONFIG_SND_SOC_CS35L56_CAL_DEBUGFS)) 1488 cs35l56_create_cal_debugfs(&cs35l56->base, &cs35l56_cal_debugfs_fops); 1489 1490 queue_work(cs35l56->dsp_wq, &cs35l56->dsp_work); 1491 1492 return 0; 1493 } 1494 1495 static void cs35l56_component_remove(struct snd_soc_component *component) 1496 { 1497 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component); 1498 1499 cancel_work_sync(&cs35l56->dsp_work); 1500 1501 cs35l56_remove_cal_debugfs(&cs35l56->base); 1502 1503 if (cs35l56->dsp.cs_dsp.booted) 1504 wm_adsp_power_down(&cs35l56->dsp); 1505 1506 wm_adsp2_component_remove(&cs35l56->dsp, component); 1507 1508 kfree(cs35l56->dsp.part); 1509 cs35l56->dsp.part = NULL; 1510 1511 kfree(cs35l56->dsp.fwf_name); 1512 cs35l56->dsp.fwf_name = NULL; 1513 1514 cs35l56->component = NULL; 1515 } 1516 1517 static int cs35l56_component_probe(struct snd_soc_component *component) 1518 { 1519 int ret; 1520 1521 ret = _cs35l56_component_probe(component); 1522 if (ret < 0) 1523 cs35l56_component_remove(component); 1524 1525 return ret; 1526 } 1527 1528 static int cs35l56_set_bias_level(struct snd_soc_component *component, 1529 enum snd_soc_bias_level level) 1530 { 1531 struct cs35l56_private *cs35l56 = snd_soc_component_get_drvdata(component); 1532 struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component); 1533 1534 switch (level) { 1535 case SND_SOC_BIAS_STANDBY: 1536 /* 1537 * Wait for patching to complete when transitioning from 1538 * BIAS_OFF to BIAS_STANDBY 1539 */ 1540 if (snd_soc_dapm_get_bias_level(dapm) == SND_SOC_BIAS_OFF) 1541 cs35l56_wait_dsp_ready(cs35l56); 1542 1543 break; 1544 default: 1545 break; 1546 } 1547 1548 return 0; 1549 } 1550 1551 static const struct snd_soc_component_driver soc_component_dev_cs35l56 = { 1552 .probe = cs35l56_component_probe, 1553 .remove = cs35l56_component_remove, 1554 1555 .dapm_widgets = cs35l56_dapm_widgets, 1556 .num_dapm_widgets = ARRAY_SIZE(cs35l56_dapm_widgets), 1557 .dapm_routes = cs35l56_audio_map, 1558 .num_dapm_routes = ARRAY_SIZE(cs35l56_audio_map), 1559 1560 .set_bias_level = cs35l56_set_bias_level, 1561 1562 .suspend_bias_off = 1, /* see cs35l56_system_resume() */ 1563 }; 1564 1565 static int __maybe_unused cs35l56_runtime_suspend_i2c_spi(struct device *dev) 1566 { 1567 struct cs35l56_private *cs35l56 = dev_get_drvdata(dev); 1568 1569 return cs35l56_runtime_suspend_common(&cs35l56->base); 1570 } 1571 1572 static int __maybe_unused cs35l56_runtime_resume_i2c_spi(struct device *dev) 1573 { 1574 struct cs35l56_private *cs35l56 = dev_get_drvdata(dev); 1575 1576 return cs35l56_runtime_resume_common(&cs35l56->base, false); 1577 } 1578 1579 int cs35l56_system_suspend(struct device *dev) 1580 { 1581 struct cs35l56_private *cs35l56 = dev_get_drvdata(dev); 1582 int ret; 1583 1584 dev_dbg(dev, "system_suspend\n"); 1585 1586 if (cs35l56->component) 1587 flush_work(&cs35l56->dsp_work); 1588 1589 /* 1590 * The interrupt line is normally shared, but after we start suspending 1591 * we can't check if our device is the source of an interrupt, and can't 1592 * clear it. Prevent this race by temporarily disabling the parent irq 1593 * until we reach _no_irq. 1594 */ 1595 if (cs35l56->base.irq) 1596 disable_irq(cs35l56->base.irq); 1597 1598 ret = pm_runtime_force_suspend(dev); 1599 if ((ret < 0) && cs35l56->base.irq) 1600 enable_irq(cs35l56->base.irq); 1601 1602 return ret; 1603 } 1604 EXPORT_SYMBOL_GPL(cs35l56_system_suspend); 1605 1606 int cs35l56_system_suspend_late(struct device *dev) 1607 { 1608 struct cs35l56_private *cs35l56 = dev_get_drvdata(dev); 1609 1610 dev_dbg(dev, "system_suspend_late\n"); 1611 1612 /* 1613 * Assert RESET before removing supplies. 1614 * RESET is usually shared by all amps so it must not be asserted until 1615 * all driver instances have done their suspend() stage. 1616 */ 1617 if (cs35l56->base.reset_gpio) { 1618 gpiod_set_value_cansleep(cs35l56->base.reset_gpio, 0); 1619 cs35l56_wait_min_reset_pulse(); 1620 } 1621 1622 regulator_bulk_disable(ARRAY_SIZE(cs35l56->supplies), cs35l56->supplies); 1623 1624 return 0; 1625 } 1626 EXPORT_SYMBOL_GPL(cs35l56_system_suspend_late); 1627 1628 int cs35l56_system_suspend_no_irq(struct device *dev) 1629 { 1630 struct cs35l56_private *cs35l56 = dev_get_drvdata(dev); 1631 1632 dev_dbg(dev, "system_suspend_no_irq\n"); 1633 1634 /* Handlers are now disabled so the parent IRQ can safely be re-enabled. */ 1635 if (cs35l56->base.irq) 1636 enable_irq(cs35l56->base.irq); 1637 1638 return 0; 1639 } 1640 EXPORT_SYMBOL_GPL(cs35l56_system_suspend_no_irq); 1641 1642 int cs35l56_system_resume_no_irq(struct device *dev) 1643 { 1644 struct cs35l56_private *cs35l56 = dev_get_drvdata(dev); 1645 1646 dev_dbg(dev, "system_resume_no_irq\n"); 1647 1648 /* 1649 * WAKE interrupts unmask if the CS35L56 hibernates, which can cause 1650 * spurious interrupts, and the interrupt line is normally shared. 1651 * We can't check if our device is the source of an interrupt, and can't 1652 * clear it, until it has fully resumed. Prevent this race by temporarily 1653 * disabling the parent irq until we complete resume(). 1654 */ 1655 if (cs35l56->base.irq) 1656 disable_irq(cs35l56->base.irq); 1657 1658 return 0; 1659 } 1660 EXPORT_SYMBOL_GPL(cs35l56_system_resume_no_irq); 1661 1662 int cs35l56_system_resume_early(struct device *dev) 1663 { 1664 struct cs35l56_private *cs35l56 = dev_get_drvdata(dev); 1665 int ret; 1666 1667 dev_dbg(dev, "system_resume_early\n"); 1668 1669 /* Ensure a spec-compliant RESET pulse. */ 1670 if (cs35l56->base.reset_gpio) { 1671 gpiod_set_value_cansleep(cs35l56->base.reset_gpio, 0); 1672 cs35l56_wait_min_reset_pulse(); 1673 } 1674 1675 /* Enable supplies before releasing RESET. */ 1676 ret = regulator_bulk_enable(ARRAY_SIZE(cs35l56->supplies), cs35l56->supplies); 1677 if (ret) { 1678 dev_err(dev, "system_resume_early failed to enable supplies: %d\n", ret); 1679 return ret; 1680 } 1681 1682 /* Release shared RESET before drivers start resume(). */ 1683 gpiod_set_value_cansleep(cs35l56->base.reset_gpio, 1); 1684 1685 return 0; 1686 } 1687 EXPORT_SYMBOL_GPL(cs35l56_system_resume_early); 1688 1689 int cs35l56_system_resume(struct device *dev) 1690 { 1691 struct cs35l56_private *cs35l56 = dev_get_drvdata(dev); 1692 int ret; 1693 1694 dev_dbg(dev, "system_resume\n"); 1695 1696 /* 1697 * We might have done a hard reset or the CS35L56 was power-cycled 1698 * so wait for control port to be ready. 1699 */ 1700 cs35l56_wait_control_port_ready(); 1701 1702 /* Undo pm_runtime_force_suspend() before re-enabling the irq */ 1703 ret = pm_runtime_force_resume(dev); 1704 if (cs35l56->base.irq) 1705 enable_irq(cs35l56->base.irq); 1706 1707 if (ret) 1708 return ret; 1709 1710 /* Firmware won't have been loaded if the component hasn't probed */ 1711 if (!cs35l56->component) 1712 return 0; 1713 1714 ret = cs35l56_is_fw_reload_needed(&cs35l56->base); 1715 dev_dbg(cs35l56->base.dev, "fw_reload_needed: %d\n", ret); 1716 if (ret < 1) 1717 return ret; 1718 1719 cs35l56->base.fw_patched = false; 1720 wm_adsp_power_down(&cs35l56->dsp); 1721 queue_work(cs35l56->dsp_wq, &cs35l56->dsp_work); 1722 1723 /* 1724 * suspend_bias_off ensures we are now in BIAS_OFF so there will be 1725 * a BIAS_OFF->BIAS_STANDBY transition to complete dsp patching. 1726 */ 1727 1728 return 0; 1729 } 1730 EXPORT_SYMBOL_GPL(cs35l56_system_resume); 1731 1732 static int cs35l56_control_add_nop(struct wm_adsp *dsp, struct cs_dsp_coeff_ctl *cs_ctl) 1733 { 1734 return 0; 1735 } 1736 1737 static int cs35l56_dsp_init(struct cs35l56_private *cs35l56) 1738 { 1739 struct wm_adsp *dsp; 1740 int ret; 1741 1742 cs35l56->dsp_wq = create_singlethread_workqueue("cs35l56-dsp"); 1743 if (!cs35l56->dsp_wq) 1744 return -ENOMEM; 1745 1746 INIT_WORK(&cs35l56->dsp_work, cs35l56_dsp_work); 1747 1748 dsp = &cs35l56->dsp; 1749 cs35l56_init_cs_dsp(&cs35l56->base, &dsp->cs_dsp); 1750 1751 /* 1752 * dsp->part is filled in later as it is based on the DEVID. In a 1753 * SoundWire system that cannot be read until enumeration has occurred 1754 * and the device has attached. 1755 */ 1756 dsp->fw = 12; 1757 dsp->wmfw_optional = true; 1758 1759 /* 1760 * None of the firmware controls need to be exported so add a no-op 1761 * callback that suppresses creating an ALSA control. 1762 */ 1763 dsp->control_add = &cs35l56_control_add_nop; 1764 1765 dev_dbg(cs35l56->base.dev, "DSP system name: '%s'\n", dsp->system_name); 1766 1767 ret = wm_halo_init(dsp); 1768 if (ret != 0) { 1769 dev_err(cs35l56->base.dev, "wm_halo_init failed\n"); 1770 return ret; 1771 } 1772 1773 return 0; 1774 } 1775 1776 static int cs35l56_read_fwnode_u32_array(struct device *dev, 1777 struct fwnode_handle *parent_node, 1778 const char *prop_name, 1779 int max_count, 1780 u32 *dest) 1781 { 1782 int count, ret; 1783 1784 count = fwnode_property_count_u32(parent_node, prop_name); 1785 if ((count == 0) || (count == -EINVAL) || (count == -ENODATA)) { 1786 dev_dbg(dev, "%s not found in %s\n", prop_name, fwnode_get_name(parent_node)); 1787 return 0; 1788 } 1789 1790 if (count < 0) { 1791 dev_err(dev, "Get %s error:%d\n", prop_name, count); 1792 return count; 1793 } 1794 1795 if (count > max_count) { 1796 dev_err(dev, "%s too many entries (%d)\n", prop_name, count); 1797 return -EOVERFLOW; 1798 } 1799 1800 ret = fwnode_property_read_u32_array(parent_node, prop_name, dest, count); 1801 if (ret) { 1802 dev_err(dev, "Error reading %s: %d\n", prop_name, ret); 1803 return ret; 1804 } 1805 1806 return count; 1807 } 1808 1809 static int cs35l56_process_xu_onchip_speaker_id(struct cs35l56_private *cs35l56, 1810 struct fwnode_handle *ext_node) 1811 { 1812 static const char * const gpio_name = "01fa-spk-id-gpios-onchip"; 1813 static const char * const pull_name = "01fa-spk-id-gpios-onchip-pull"; 1814 u32 gpios[5], pulls[5]; 1815 int num_gpios, num_pulls; 1816 int ret; 1817 1818 static_assert(ARRAY_SIZE(gpios) == ARRAY_SIZE(cs35l56->base.onchip_spkid_gpios)); 1819 static_assert(ARRAY_SIZE(pulls) == ARRAY_SIZE(cs35l56->base.onchip_spkid_pulls)); 1820 1821 num_gpios = cs35l56_read_fwnode_u32_array(cs35l56->base.dev, ext_node, gpio_name, 1822 ARRAY_SIZE(gpios), gpios); 1823 if (num_gpios < 1) 1824 return num_gpios; 1825 1826 num_pulls = cs35l56_read_fwnode_u32_array(cs35l56->base.dev, ext_node, pull_name, 1827 ARRAY_SIZE(pulls), pulls); 1828 if (num_pulls < 0) 1829 return num_pulls; 1830 1831 if (num_pulls && (num_pulls != num_gpios)) { 1832 dev_warn(cs35l56->base.dev, "%s count(%d) != %s count(%d)\n", 1833 pull_name, num_pulls, gpio_name, num_gpios); 1834 } 1835 1836 ret = cs35l56_check_and_save_onchip_spkid_gpios(&cs35l56->base, 1837 gpios, num_gpios, 1838 pulls, num_pulls); 1839 if (ret) { 1840 return dev_err_probe(cs35l56->base.dev, ret, "Error in %s/%s\n", 1841 gpio_name, pull_name); 1842 } 1843 1844 return 0; 1845 } 1846 1847 VISIBLE_IF_KUNIT int cs35l56_process_xu_properties(struct cs35l56_private *cs35l56) 1848 { 1849 struct fwnode_handle *ext_node = NULL; 1850 struct fwnode_handle *link; 1851 int ret; 1852 1853 if (!cs35l56->sdw_peripheral) 1854 return 0; 1855 1856 fwnode_for_each_child_node(dev_fwnode(cs35l56->base.dev), link) { 1857 ext_node = fwnode_get_named_child_node(link, 1858 "mipi-sdca-function-expansion-subproperties"); 1859 if (ext_node) { 1860 fwnode_handle_put(link); 1861 break; 1862 } 1863 } 1864 1865 if (!ext_node) 1866 return 0; 1867 1868 ret = cs35l56_process_xu_onchip_speaker_id(cs35l56, ext_node); 1869 fwnode_handle_put(ext_node); 1870 1871 return ret; 1872 } 1873 EXPORT_SYMBOL_IF_KUNIT(cs35l56_process_xu_properties); 1874 1875 VISIBLE_IF_KUNIT int cs35l56_get_firmware_uid(struct cs35l56_private *cs35l56) 1876 { 1877 struct device *dev = cs35l56->base.dev; 1878 const char *prop; 1879 int ret; 1880 1881 ret = device_property_read_string(dev, "cirrus,firmware-uid", &prop); 1882 /* If bad sw node property, return 0 and fallback to legacy firmware path */ 1883 if (ret < 0) 1884 return 0; 1885 1886 /* Append a speaker qualifier if there is a speaker ID */ 1887 if (cs35l56->speaker_id >= 0) 1888 cs35l56->dsp.system_name = devm_kasprintf(dev, GFP_KERNEL, "%s-spkid%d", 1889 prop, cs35l56->speaker_id); 1890 else 1891 cs35l56->dsp.system_name = devm_kstrdup(dev, prop, GFP_KERNEL); 1892 1893 if (cs35l56->dsp.system_name == NULL) 1894 return -ENOMEM; 1895 1896 dev_dbg(dev, "Firmware UID: %s\n", cs35l56->dsp.system_name); 1897 1898 return 0; 1899 } 1900 EXPORT_SYMBOL_IF_KUNIT(cs35l56_get_firmware_uid); 1901 1902 /* 1903 * Some SoundWire laptops have a spk-id-gpios property but it points to 1904 * the wrong ACPI Device node so can't be used to get the GPIO. Try to 1905 * find the SDCA node containing the GpioIo resource and add a GPIO 1906 * mapping to it. 1907 */ 1908 static const struct acpi_gpio_params cs35l56_af01_first_gpio = { 0, 0, false }; 1909 static const struct acpi_gpio_mapping cs35l56_af01_spkid_gpios_mapping[] = { 1910 { "spk-id-gpios", &cs35l56_af01_first_gpio, 1 }, 1911 { } 1912 }; 1913 1914 static void cs35l56_acpi_dev_release_driver_gpios(void *adev) 1915 { 1916 acpi_dev_remove_driver_gpios(adev); 1917 } 1918 1919 static int cs35l56_try_get_broken_sdca_spkid_gpio(struct cs35l56_private *cs35l56) 1920 { 1921 struct fwnode_handle *af01_fwnode; 1922 const union acpi_object *obj; 1923 struct gpio_desc *desc; 1924 int ret; 1925 1926 /* Find the SDCA node containing the GpioIo */ 1927 af01_fwnode = device_get_named_child_node(cs35l56->base.dev, "AF01"); 1928 if (!af01_fwnode) { 1929 dev_dbg(cs35l56->base.dev, "No AF01 node\n"); 1930 return -ENOENT; 1931 } 1932 1933 ret = acpi_dev_get_property(ACPI_COMPANION(cs35l56->base.dev), 1934 "spk-id-gpios", ACPI_TYPE_PACKAGE, &obj); 1935 if (ret) { 1936 dev_dbg(cs35l56->base.dev, "Could not get spk-id-gpios package: %d\n", ret); 1937 fwnode_handle_put(af01_fwnode); 1938 return -ENOENT; 1939 } 1940 1941 /* The broken properties we can handle are a 4-element package (one GPIO) */ 1942 if (obj->package.count != 4) { 1943 dev_warn(cs35l56->base.dev, "Unexpected spk-id element count %d\n", 1944 obj->package.count); 1945 fwnode_handle_put(af01_fwnode); 1946 return -ENOENT; 1947 } 1948 1949 /* Add a GPIO mapping if it doesn't already have one */ 1950 if (!fwnode_property_present(af01_fwnode, "spk-id-gpios")) { 1951 struct acpi_device *adev = to_acpi_device_node(af01_fwnode); 1952 1953 /* 1954 * Can't use devm_acpi_dev_add_driver_gpios() because the 1955 * mapping isn't being added to the node pointed to by 1956 * ACPI_COMPANION(). 1957 */ 1958 ret = acpi_dev_add_driver_gpios(adev, cs35l56_af01_spkid_gpios_mapping); 1959 if (ret) { 1960 fwnode_handle_put(af01_fwnode); 1961 return dev_err_probe(cs35l56->base.dev, ret, 1962 "Failed to add gpio mapping to AF01\n"); 1963 } 1964 1965 ret = devm_add_action_or_reset(cs35l56->base.dev, 1966 cs35l56_acpi_dev_release_driver_gpios, 1967 adev); 1968 if (ret) { 1969 fwnode_handle_put(af01_fwnode); 1970 return ret; 1971 } 1972 1973 dev_dbg(cs35l56->base.dev, "Added spk-id-gpios mapping to AF01\n"); 1974 } 1975 1976 desc = fwnode_gpiod_get_index(af01_fwnode, "spk-id", 0, GPIOD_IN, NULL); 1977 if (IS_ERR(desc)) { 1978 fwnode_handle_put(af01_fwnode); 1979 ret = PTR_ERR(desc); 1980 return dev_err_probe(cs35l56->base.dev, ret, "Get GPIO from AF01 failed\n"); 1981 } 1982 1983 ret = gpiod_get_value_cansleep(desc); 1984 gpiod_put(desc); 1985 1986 if (ret < 0) { 1987 fwnode_handle_put(af01_fwnode); 1988 dev_err_probe(cs35l56->base.dev, ret, "Error reading spk-id GPIO\n"); 1989 return ret; 1990 } 1991 1992 fwnode_handle_put(af01_fwnode); 1993 1994 dev_info(cs35l56->base.dev, "Got spk-id from AF01\n"); 1995 1996 return ret; 1997 } 1998 1999 static int cs35l56_component_register(struct cs35l56_private *cs35l56) 2000 { 2001 int ret; 2002 2003 ret = snd_soc_register_component(cs35l56->base.dev, 2004 &soc_component_dev_cs35l56, 2005 cs35l56_dai, ARRAY_SIZE(cs35l56_dai)); 2006 if (ret < 0) { 2007 dev_err(cs35l56->base.dev, "Register codec failed: %d\n", ret); 2008 return ret; 2009 } 2010 2011 cs35l56->component_registered = true; 2012 2013 return 0; 2014 } 2015 2016 static void cs35l56_component_register_work(struct work_struct *work) 2017 { 2018 struct cs35l56_private *cs35l56 = container_of(work, 2019 struct cs35l56_private, 2020 component_register_work); 2021 int ret; 2022 2023 guard(mutex)(&cs35l56_component_register_lock); 2024 2025 if (cs35l56_shutting_down) 2026 return; 2027 2028 PM_RUNTIME_ACQUIRE_AUTOSUSPEND(cs35l56->base.dev, pm_err); 2029 ret = PM_RUNTIME_ACQUIRE_ERR(&pm_err); 2030 if (ret) { 2031 dev_err(cs35l56->base.dev, "register_work failed to get pm_runtime: %d\n", ret); 2032 return; 2033 } 2034 2035 cs35l56_component_register(cs35l56); 2036 } 2037 2038 int cs35l56_common_probe(struct cs35l56_private *cs35l56, int irq) 2039 { 2040 int ret; 2041 2042 init_completion(&cs35l56->init_completion); 2043 mutex_init(&cs35l56->base.irq_lock); 2044 cs35l56->base.cal_index = -1; 2045 cs35l56->speaker_id = -ENOENT; 2046 INIT_WORK(&cs35l56->component_register_work, cs35l56_component_register_work); 2047 2048 dev_set_drvdata(cs35l56->base.dev, cs35l56); 2049 2050 cs35l56_fill_supply_names(cs35l56->supplies); 2051 ret = devm_regulator_bulk_get(cs35l56->base.dev, ARRAY_SIZE(cs35l56->supplies), 2052 cs35l56->supplies); 2053 if (ret != 0) 2054 return dev_err_probe(cs35l56->base.dev, ret, "Failed to request supplies\n"); 2055 2056 /* Reset could be controlled by the BIOS or shared by multiple amps */ 2057 cs35l56->base.reset_gpio = devm_gpiod_get_optional(cs35l56->base.dev, "reset", 2058 GPIOD_OUT_LOW); 2059 if (IS_ERR(cs35l56->base.reset_gpio)) { 2060 ret = PTR_ERR(cs35l56->base.reset_gpio); 2061 /* 2062 * If RESET is shared the first amp to probe will grab the reset 2063 * line and reset all the amps 2064 */ 2065 if (ret != -EBUSY) 2066 return dev_err_probe(cs35l56->base.dev, ret, "Failed to get reset GPIO\n"); 2067 2068 dev_info(cs35l56->base.dev, "Reset GPIO busy, assume shared reset\n"); 2069 cs35l56->base.reset_gpio = NULL; 2070 } 2071 2072 ret = regulator_bulk_enable(ARRAY_SIZE(cs35l56->supplies), cs35l56->supplies); 2073 if (ret != 0) 2074 return dev_err_probe(cs35l56->base.dev, ret, "Failed to enable supplies\n"); 2075 2076 if (cs35l56->base.reset_gpio) { 2077 /* ACPI can override GPIOD_OUT_LOW flag so force it to start low */ 2078 gpiod_set_value_cansleep(cs35l56->base.reset_gpio, 0); 2079 cs35l56_wait_min_reset_pulse(); 2080 gpiod_set_value_cansleep(cs35l56->base.reset_gpio, 1); 2081 } 2082 2083 ret = cs35l56_get_speaker_id(&cs35l56->base); 2084 if (ACPI_COMPANION(cs35l56->base.dev) && cs35l56->sdw_peripheral && (ret == -ENOENT)) 2085 ret = cs35l56_try_get_broken_sdca_spkid_gpio(cs35l56); 2086 2087 if ((ret < 0) && (ret != -ENOENT)) 2088 goto err; 2089 2090 cs35l56->speaker_id = ret; 2091 2092 ret = cs35l56_get_firmware_uid(cs35l56); 2093 if (ret != 0) 2094 goto err; 2095 2096 ret = cs35l56_process_xu_properties(cs35l56); 2097 if (ret) 2098 goto err; 2099 2100 ret = cs35l56_dsp_init(cs35l56); 2101 if (ret < 0) { 2102 dev_err_probe(cs35l56->base.dev, ret, "DSP init failed\n"); 2103 goto err; 2104 } 2105 2106 /* 2107 * On SoundWire the cs35l56_init() cannot be run until after the 2108 * device has been enumerated by the SoundWire core. 2109 */ 2110 if (!cs35l56->sdw_peripheral) { 2111 ret = cs35l56_init(cs35l56); 2112 if (ret) 2113 goto err_remove_wm_adsp; 2114 } 2115 2116 ret = cs35l56_irq_request(&cs35l56->base, irq); 2117 if (ret) 2118 goto err_remove_wm_adsp; 2119 2120 /* 2121 * Defer calling snd_soc_register_component() on SoundWire to prevent 2122 * a deadlock where it calls our component_probe(), which requires the 2123 * SoundWire enumeration to complete, but because we are still in probe() 2124 * the SoundWire core will not call the update_status() callback. At time 2125 * of writing snd_soc_register_component() never returns EPROBE_DEFER. 2126 */ 2127 if (!cs35l56->sdw_peripheral) { 2128 ret = cs35l56_component_register(cs35l56); 2129 if (ret < 0) 2130 goto err_free_irq; 2131 } 2132 2133 return 0; 2134 2135 err_free_irq: 2136 if (cs35l56->base.irq) 2137 devm_free_irq(cs35l56->base.dev, cs35l56->base.irq, &cs35l56->base); 2138 2139 err_remove_wm_adsp: 2140 wm_adsp2_remove(&cs35l56->dsp); 2141 2142 err: 2143 if (pm_runtime_enabled(cs35l56->base.dev)) { 2144 pm_runtime_dont_use_autosuspend(cs35l56->base.dev); 2145 pm_runtime_disable(cs35l56->base.dev); 2146 } 2147 2148 gpiod_set_value_cansleep(cs35l56->base.reset_gpio, 0); 2149 regulator_bulk_disable(ARRAY_SIZE(cs35l56->supplies), cs35l56->supplies); 2150 2151 if (cs35l56->dsp_wq) 2152 destroy_workqueue(cs35l56->dsp_wq); 2153 2154 return ret; 2155 } 2156 EXPORT_SYMBOL_NS_GPL(cs35l56_common_probe, "SND_SOC_CS35L56_CORE"); 2157 2158 int cs35l56_init(struct cs35l56_private *cs35l56) 2159 { 2160 bool first_time_init = !cs35l56->base.init_done; 2161 int ret; 2162 2163 /* 2164 * Check whether the actions associated with soft reset or one time 2165 * init need to be performed. 2166 */ 2167 if (cs35l56->soft_resetting) 2168 goto post_soft_reset; 2169 2170 if (cs35l56->base.init_done) 2171 return 0; 2172 2173 pm_runtime_set_autosuspend_delay(cs35l56->base.dev, 2174 CS35L56_FW_REQ_ACTIVE_TIMEOUT_MS + 50); 2175 pm_runtime_use_autosuspend(cs35l56->base.dev); 2176 pm_runtime_set_active(cs35l56->base.dev); 2177 pm_runtime_enable(cs35l56->base.dev); 2178 2179 ret = cs35l56_hw_init(&cs35l56->base); 2180 if (ret < 0) 2181 return ret; 2182 2183 ret = cs35l56_set_patch(&cs35l56->base); 2184 if (ret) 2185 return ret; 2186 2187 ret = cs35l56_get_calibration(&cs35l56->base); 2188 if (ret) 2189 return ret; 2190 2191 if (!cs35l56->base.reset_gpio) { 2192 dev_dbg(cs35l56->base.dev, "No reset gpio: using soft reset\n"); 2193 cs35l56->soft_resetting = true; 2194 cs35l56_system_reset(&cs35l56->base, !!cs35l56->sdw_peripheral); 2195 if (cs35l56->sdw_peripheral) { 2196 /* Keep alive while we wait for re-enumeration */ 2197 pm_runtime_get_noresume(cs35l56->base.dev); 2198 return 0; 2199 } 2200 } 2201 2202 post_soft_reset: 2203 if (cs35l56->soft_resetting) { 2204 cs35l56->soft_resetting = false; 2205 2206 /* Done re-enumerating after one-time init so release the keep-alive */ 2207 if (cs35l56->sdw_peripheral && !cs35l56->base.init_done) 2208 pm_runtime_put_noidle(cs35l56->base.dev); 2209 2210 regcache_mark_dirty(cs35l56->base.regmap); 2211 ret = cs35l56_wait_for_firmware_boot(&cs35l56->base); 2212 if (ret) 2213 return ret; 2214 2215 dev_dbg(cs35l56->base.dev, "Firmware rebooted after soft reset\n"); 2216 2217 regcache_cache_only(cs35l56->base.regmap, false); 2218 } 2219 2220 /* Disable auto-hibernate so that runtime_pm has control */ 2221 ret = cs35l56_mbox_send(&cs35l56->base, CS35L56_MBOX_CMD_PREVENT_AUTO_HIBERNATE); 2222 if (ret) 2223 return ret; 2224 2225 /* Registers could be dirty after soft reset or SoundWire enumeration */ 2226 regcache_sync(cs35l56->base.regmap); 2227 2228 /* Set ASP1 DOUT to high-impedance when it is not transmitting audio data. */ 2229 ret = regmap_set_bits(cs35l56->base.regmap, CS35L56_ASP1_CONTROL3, 2230 CS35L56_ASP1_DOUT_HIZ_CTRL_MASK); 2231 if (ret) 2232 return dev_err_probe(cs35l56->base.dev, ret, "Failed to write ASP1_CONTROL3\n"); 2233 2234 cs35l56->base.init_done = true; 2235 complete_all(&cs35l56->init_completion); 2236 2237 if (cs35l56->sdw_peripheral && first_time_init) { 2238 /* 2239 * Hardware now accessible, queue work to call 2240 * snd_soc_register_component(). 2241 */ 2242 queue_work(system_freezable_wq, &cs35l56->component_register_work); 2243 } 2244 2245 return 0; 2246 } 2247 EXPORT_SYMBOL_NS_GPL(cs35l56_init, "SND_SOC_CS35L56_CORE"); 2248 2249 void cs35l56_remove(struct cs35l56_private *cs35l56) 2250 { 2251 cancel_work_sync(&cs35l56->component_register_work); 2252 if (cs35l56->component_registered) 2253 snd_soc_unregister_component(cs35l56->base.dev); 2254 2255 cs35l56->base.init_done = false; 2256 2257 /* 2258 * WAKE IRQs unmask if CS35L56 hibernates so free the handler to 2259 * prevent it racing with remove(). 2260 */ 2261 if (cs35l56->base.irq) 2262 devm_free_irq(cs35l56->base.dev, cs35l56->base.irq, &cs35l56->base); 2263 2264 destroy_workqueue(cs35l56->dsp_wq); 2265 2266 wm_adsp2_remove(&cs35l56->dsp); 2267 2268 pm_runtime_dont_use_autosuspend(cs35l56->base.dev); 2269 pm_runtime_suspend(cs35l56->base.dev); 2270 pm_runtime_disable(cs35l56->base.dev); 2271 2272 regcache_cache_only(cs35l56->base.regmap, true); 2273 2274 gpiod_set_value_cansleep(cs35l56->base.reset_gpio, 0); 2275 regulator_bulk_disable(ARRAY_SIZE(cs35l56->supplies), cs35l56->supplies); 2276 } 2277 EXPORT_SYMBOL_NS_GPL(cs35l56_remove, "SND_SOC_CS35L56_CORE"); 2278 2279 #if IS_ENABLED(CONFIG_SND_SOC_CS35L56_I2C) || IS_ENABLED(CONFIG_SND_SOC_CS35L56_SPI) 2280 EXPORT_NS_GPL_DEV_PM_OPS(cs35l56_pm_ops_i2c_spi, SND_SOC_CS35L56_CORE) = { 2281 SET_RUNTIME_PM_OPS(cs35l56_runtime_suspend_i2c_spi, cs35l56_runtime_resume_i2c_spi, NULL) 2282 SYSTEM_SLEEP_PM_OPS(cs35l56_system_suspend, cs35l56_system_resume) 2283 LATE_SYSTEM_SLEEP_PM_OPS(cs35l56_system_suspend_late, cs35l56_system_resume_early) 2284 NOIRQ_SYSTEM_SLEEP_PM_OPS(cs35l56_system_suspend_no_irq, cs35l56_system_resume_no_irq) 2285 }; 2286 #endif 2287 2288 static int cs35l56_reboot_notify(struct notifier_block *nb, 2289 unsigned long action, void *data) 2290 { 2291 guard(mutex)(&cs35l56_component_register_lock); 2292 cs35l56_shutting_down = true; 2293 2294 return NOTIFY_DONE; 2295 } 2296 2297 static struct notifier_block cs35l56_reboot_notifier = { 2298 .notifier_call = cs35l56_reboot_notify, 2299 }; 2300 2301 static int __init cs35l56_modinit(void) 2302 { 2303 /* 2304 * Use reboot notifier to prevent race between shutdown and 2305 * snd_soc_register_component(). Driver shutdown() callback would 2306 * run too late, after device_shutdown() is already walking the 2307 * device list that component registration can modify. 2308 */ 2309 return register_reboot_notifier(&cs35l56_reboot_notifier); 2310 } 2311 module_init(cs35l56_modinit); 2312 2313 static void __exit cs35l56_modexit(void) 2314 { 2315 unregister_reboot_notifier(&cs35l56_reboot_notifier); 2316 } 2317 module_exit(cs35l56_modexit); 2318 2319 MODULE_DESCRIPTION("ASoC CS35L56 driver"); 2320 MODULE_IMPORT_NS("SND_SOC_CS35L56_SHARED"); 2321 MODULE_IMPORT_NS("SND_SOC_CS_AMP_LIB"); 2322 MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>"); 2323 MODULE_AUTHOR("Simon Trimmer <simont@opensource.cirrus.com>"); 2324 MODULE_LICENSE("GPL"); 2325