1 // SPDX-License-Identifier: GPL-2.0 2 // 3 // cs35l36.c -- CS35L36 ALSA SoC audio driver 4 // 5 // Copyright 2018 Cirrus Logic, Inc. 6 // 7 // Author: James Schulman <james.schulman@cirrus.com> 8 9 #include <linux/module.h> 10 #include <linux/moduleparam.h> 11 #include <linux/kernel.h> 12 #include <linux/init.h> 13 #include <linux/delay.h> 14 #include <linux/i2c.h> 15 #include <linux/slab.h> 16 #include <linux/workqueue.h> 17 #include <linux/platform_device.h> 18 #include <linux/regulator/consumer.h> 19 #include <linux/gpio/consumer.h> 20 #include <linux/of_device.h> 21 #include <linux/of_gpio.h> 22 #include <linux/regmap.h> 23 #include <sound/core.h> 24 #include <sound/pcm.h> 25 #include <sound/pcm_params.h> 26 #include <sound/soc.h> 27 #include <sound/soc-dapm.h> 28 #include <linux/gpio.h> 29 #include <sound/initval.h> 30 #include <sound/tlv.h> 31 #include <sound/cs35l36.h> 32 #include <linux/of_irq.h> 33 #include <linux/completion.h> 34 35 #include "cs35l36.h" 36 37 /* 38 * Some fields take zero as a valid value so use a high bit flag that won't 39 * get written to the device to mark those. 40 */ 41 #define CS35L36_VALID_PDATA 0x80000000 42 43 static const char * const cs35l36_supplies[] = { 44 "VA", 45 "VP", 46 }; 47 48 struct cs35l36_private { 49 struct device *dev; 50 struct cs35l36_platform_data pdata; 51 struct regmap *regmap; 52 struct regulator_bulk_data supplies[2]; 53 int num_supplies; 54 int clksrc; 55 int chip_version; 56 int rev_id; 57 int ldm_mode_sel; 58 struct gpio_desc *reset_gpio; 59 }; 60 61 struct cs35l36_pll_config { 62 int freq; 63 int clk_cfg; 64 int fll_igain; 65 }; 66 67 static const struct cs35l36_pll_config cs35l36_pll_sysclk[] = { 68 {32768, 0x00, 0x05}, 69 {8000, 0x01, 0x03}, 70 {11025, 0x02, 0x03}, 71 {12000, 0x03, 0x03}, 72 {16000, 0x04, 0x04}, 73 {22050, 0x05, 0x04}, 74 {24000, 0x06, 0x04}, 75 {32000, 0x07, 0x05}, 76 {44100, 0x08, 0x05}, 77 {48000, 0x09, 0x05}, 78 {88200, 0x0A, 0x06}, 79 {96000, 0x0B, 0x06}, 80 {128000, 0x0C, 0x07}, 81 {176400, 0x0D, 0x07}, 82 {192000, 0x0E, 0x07}, 83 {256000, 0x0F, 0x08}, 84 {352800, 0x10, 0x08}, 85 {384000, 0x11, 0x08}, 86 {512000, 0x12, 0x09}, 87 {705600, 0x13, 0x09}, 88 {750000, 0x14, 0x09}, 89 {768000, 0x15, 0x09}, 90 {1000000, 0x16, 0x0A}, 91 {1024000, 0x17, 0x0A}, 92 {1200000, 0x18, 0x0A}, 93 {1411200, 0x19, 0x0A}, 94 {1500000, 0x1A, 0x0A}, 95 {1536000, 0x1B, 0x0A}, 96 {2000000, 0x1C, 0x0A}, 97 {2048000, 0x1D, 0x0A}, 98 {2400000, 0x1E, 0x0A}, 99 {2822400, 0x1F, 0x0A}, 100 {3000000, 0x20, 0x0A}, 101 {3072000, 0x21, 0x0A}, 102 {3200000, 0x22, 0x0A}, 103 {4000000, 0x23, 0x0A}, 104 {4096000, 0x24, 0x0A}, 105 {4800000, 0x25, 0x0A}, 106 {5644800, 0x26, 0x0A}, 107 {6000000, 0x27, 0x0A}, 108 {6144000, 0x28, 0x0A}, 109 {6250000, 0x29, 0x08}, 110 {6400000, 0x2A, 0x0A}, 111 {6500000, 0x2B, 0x08}, 112 {6750000, 0x2C, 0x09}, 113 {7526400, 0x2D, 0x0A}, 114 {8000000, 0x2E, 0x0A}, 115 {8192000, 0x2F, 0x0A}, 116 {9600000, 0x30, 0x0A}, 117 {11289600, 0x31, 0x0A}, 118 {12000000, 0x32, 0x0A}, 119 {12288000, 0x33, 0x0A}, 120 {12500000, 0x34, 0x08}, 121 {12800000, 0x35, 0x0A}, 122 {13000000, 0x36, 0x0A}, 123 {13500000, 0x37, 0x0A}, 124 {19200000, 0x38, 0x0A}, 125 {22579200, 0x39, 0x0A}, 126 {24000000, 0x3A, 0x0A}, 127 {24576000, 0x3B, 0x0A}, 128 {25000000, 0x3C, 0x0A}, 129 {25600000, 0x3D, 0x0A}, 130 {26000000, 0x3E, 0x0A}, 131 {27000000, 0x3F, 0x0A}, 132 }; 133 134 static struct reg_default cs35l36_reg[] = { 135 {CS35L36_TESTKEY_CTRL, 0x00000000}, 136 {CS35L36_USERKEY_CTL, 0x00000000}, 137 {CS35L36_OTP_CTRL1, 0x00002460}, 138 {CS35L36_OTP_CTRL2, 0x00000000}, 139 {CS35L36_OTP_CTRL3, 0x00000000}, 140 {CS35L36_OTP_CTRL4, 0x00000000}, 141 {CS35L36_OTP_CTRL5, 0x00000000}, 142 {CS35L36_PAC_CTL1, 0x00000004}, 143 {CS35L36_PAC_CTL2, 0x00000000}, 144 {CS35L36_PAC_CTL3, 0x00000000}, 145 {CS35L36_PWR_CTRL1, 0x00000000}, 146 {CS35L36_PWR_CTRL2, 0x00003321}, 147 {CS35L36_PWR_CTRL3, 0x01000010}, 148 {CS35L36_CTRL_OVRRIDE, 0x00000002}, 149 {CS35L36_AMP_OUT_MUTE, 0x00000000}, 150 {CS35L36_OTP_TRIM_STATUS, 0x00000000}, 151 {CS35L36_DISCH_FILT, 0x00000000}, 152 {CS35L36_PROTECT_REL_ERR, 0x00000000}, 153 {CS35L36_PAD_INTERFACE, 0x00000038}, 154 {CS35L36_PLL_CLK_CTRL, 0x00000010}, 155 {CS35L36_GLOBAL_CLK_CTRL, 0x00000003}, 156 {CS35L36_ADC_CLK_CTRL, 0x00000000}, 157 {CS35L36_SWIRE_CLK_CTRL, 0x00000000}, 158 {CS35L36_SP_SCLK_CLK_CTRL, 0x00000000}, 159 {CS35L36_MDSYNC_EN, 0x00000000}, 160 {CS35L36_MDSYNC_TX_ID, 0x00000000}, 161 {CS35L36_MDSYNC_PWR_CTRL, 0x00000000}, 162 {CS35L36_MDSYNC_DATA_TX, 0x00000000}, 163 {CS35L36_MDSYNC_TX_STATUS, 0x00000002}, 164 {CS35L36_MDSYNC_RX_STATUS, 0x00000000}, 165 {CS35L36_MDSYNC_ERR_STATUS, 0x00000000}, 166 {CS35L36_BSTCVRT_VCTRL1, 0x00000000}, 167 {CS35L36_BSTCVRT_VCTRL2, 0x00000001}, 168 {CS35L36_BSTCVRT_PEAK_CUR, 0x0000004A}, 169 {CS35L36_BSTCVRT_SFT_RAMP, 0x00000003}, 170 {CS35L36_BSTCVRT_COEFF, 0x00002424}, 171 {CS35L36_BSTCVRT_SLOPE_LBST, 0x00005800}, 172 {CS35L36_BSTCVRT_SW_FREQ, 0x00010000}, 173 {CS35L36_BSTCVRT_DCM_CTRL, 0x00002001}, 174 {CS35L36_BSTCVRT_DCM_MODE_FORCE, 0x00000000}, 175 {CS35L36_BSTCVRT_OVERVOLT_CTRL, 0x00000130}, 176 {CS35L36_VPI_LIMIT_MODE, 0x00000000}, 177 {CS35L36_VPI_LIMIT_MINMAX, 0x00003000}, 178 {CS35L36_VPI_VP_THLD, 0x00101010}, 179 {CS35L36_VPI_TRACK_CTRL, 0x00000000}, 180 {CS35L36_VPI_TRIG_MODE_CTRL, 0x00000000}, 181 {CS35L36_VPI_TRIG_STEPS, 0x00000000}, 182 {CS35L36_VI_SPKMON_FILT, 0x00000003}, 183 {CS35L36_VI_SPKMON_GAIN, 0x00000909}, 184 {CS35L36_VI_SPKMON_IP_SEL, 0x00000000}, 185 {CS35L36_DTEMP_WARN_THLD, 0x00000002}, 186 {CS35L36_DTEMP_STATUS, 0x00000000}, 187 {CS35L36_VPVBST_FS_SEL, 0x00000001}, 188 {CS35L36_VPVBST_VP_CTRL, 0x000001C0}, 189 {CS35L36_VPVBST_VBST_CTRL, 0x000001C0}, 190 {CS35L36_ASP_TX_PIN_CTRL, 0x00000028}, 191 {CS35L36_ASP_RATE_CTRL, 0x00090000}, 192 {CS35L36_ASP_FORMAT, 0x00000002}, 193 {CS35L36_ASP_FRAME_CTRL, 0x00180018}, 194 {CS35L36_ASP_TX1_TX2_SLOT, 0x00010000}, 195 {CS35L36_ASP_TX3_TX4_SLOT, 0x00030002}, 196 {CS35L36_ASP_TX5_TX6_SLOT, 0x00050004}, 197 {CS35L36_ASP_TX7_TX8_SLOT, 0x00070006}, 198 {CS35L36_ASP_RX1_SLOT, 0x00000000}, 199 {CS35L36_ASP_RX_TX_EN, 0x00000000}, 200 {CS35L36_ASP_RX1_SEL, 0x00000008}, 201 {CS35L36_ASP_TX1_SEL, 0x00000018}, 202 {CS35L36_ASP_TX2_SEL, 0x00000019}, 203 {CS35L36_ASP_TX3_SEL, 0x00000028}, 204 {CS35L36_ASP_TX4_SEL, 0x00000029}, 205 {CS35L36_ASP_TX5_SEL, 0x00000020}, 206 {CS35L36_ASP_TX6_SEL, 0x00000000}, 207 {CS35L36_SWIRE_P1_TX1_SEL, 0x00000018}, 208 {CS35L36_SWIRE_P1_TX2_SEL, 0x00000019}, 209 {CS35L36_SWIRE_P2_TX1_SEL, 0x00000028}, 210 {CS35L36_SWIRE_P2_TX2_SEL, 0x00000029}, 211 {CS35L36_SWIRE_P2_TX3_SEL, 0x00000020}, 212 {CS35L36_SWIRE_DP1_FIFO_CFG, 0x0000001B}, 213 {CS35L36_SWIRE_DP2_FIFO_CFG, 0x0000001B}, 214 {CS35L36_SWIRE_DP3_FIFO_CFG, 0x0000001B}, 215 {CS35L36_SWIRE_PCM_RX_DATA, 0x00000000}, 216 {CS35L36_SWIRE_FS_SEL, 0x00000001}, 217 {CS35L36_AMP_DIG_VOL_CTRL, 0x00008000}, 218 {CS35L36_VPBR_CFG, 0x02AA1905}, 219 {CS35L36_VBBR_CFG, 0x02AA1905}, 220 {CS35L36_VPBR_STATUS, 0x00000000}, 221 {CS35L36_VBBR_STATUS, 0x00000000}, 222 {CS35L36_OVERTEMP_CFG, 0x00000001}, 223 {CS35L36_AMP_ERR_VOL, 0x00000000}, 224 {CS35L36_CLASSH_CFG, 0x000B0405}, 225 {CS35L36_CLASSH_FET_DRV_CFG, 0x00000111}, 226 {CS35L36_NG_CFG, 0x00000033}, 227 {CS35L36_AMP_GAIN_CTRL, 0x00000273}, 228 {CS35L36_PWM_MOD_IO_CTRL, 0x00000000}, 229 {CS35L36_PWM_MOD_STATUS, 0x00000000}, 230 {CS35L36_DAC_MSM_CFG, 0x00000000}, 231 {CS35L36_AMP_SLOPE_CTRL, 0x00000B00}, 232 {CS35L36_AMP_PDM_VOLUME, 0x00000000}, 233 {CS35L36_AMP_PDM_RATE_CTRL, 0x00000000}, 234 {CS35L36_PDM_CH_SEL, 0x00000000}, 235 {CS35L36_AMP_NG_CTRL, 0x0000212F}, 236 {CS35L36_PDM_HIGHFILT_CTRL, 0x00000000}, 237 {CS35L36_PAC_INT0_CTRL, 0x00000001}, 238 {CS35L36_PAC_INT1_CTRL, 0x00000001}, 239 {CS35L36_PAC_INT2_CTRL, 0x00000001}, 240 {CS35L36_PAC_INT3_CTRL, 0x00000001}, 241 {CS35L36_PAC_INT4_CTRL, 0x00000001}, 242 {CS35L36_PAC_INT5_CTRL, 0x00000001}, 243 {CS35L36_PAC_INT6_CTRL, 0x00000001}, 244 {CS35L36_PAC_INT7_CTRL, 0x00000001}, 245 }; 246 247 static bool cs35l36_readable_reg(struct device *dev, unsigned int reg) 248 { 249 switch (reg) { 250 case CS35L36_SW_RESET: 251 case CS35L36_SW_REV: 252 case CS35L36_HW_REV: 253 case CS35L36_TESTKEY_CTRL: 254 case CS35L36_USERKEY_CTL: 255 case CS35L36_OTP_MEM30: 256 case CS35L36_OTP_CTRL1: 257 case CS35L36_OTP_CTRL2: 258 case CS35L36_OTP_CTRL3: 259 case CS35L36_OTP_CTRL4: 260 case CS35L36_OTP_CTRL5: 261 case CS35L36_PAC_CTL1: 262 case CS35L36_PAC_CTL2: 263 case CS35L36_PAC_CTL3: 264 case CS35L36_DEVICE_ID: 265 case CS35L36_FAB_ID: 266 case CS35L36_REV_ID: 267 case CS35L36_PWR_CTRL1: 268 case CS35L36_PWR_CTRL2: 269 case CS35L36_PWR_CTRL3: 270 case CS35L36_CTRL_OVRRIDE: 271 case CS35L36_AMP_OUT_MUTE: 272 case CS35L36_OTP_TRIM_STATUS: 273 case CS35L36_DISCH_FILT: 274 case CS35L36_PROTECT_REL_ERR: 275 case CS35L36_PAD_INTERFACE: 276 case CS35L36_PLL_CLK_CTRL: 277 case CS35L36_GLOBAL_CLK_CTRL: 278 case CS35L36_ADC_CLK_CTRL: 279 case CS35L36_SWIRE_CLK_CTRL: 280 case CS35L36_SP_SCLK_CLK_CTRL: 281 case CS35L36_TST_FS_MON0: 282 case CS35L36_MDSYNC_EN: 283 case CS35L36_MDSYNC_TX_ID: 284 case CS35L36_MDSYNC_PWR_CTRL: 285 case CS35L36_MDSYNC_DATA_TX: 286 case CS35L36_MDSYNC_TX_STATUS: 287 case CS35L36_MDSYNC_RX_STATUS: 288 case CS35L36_MDSYNC_ERR_STATUS: 289 case CS35L36_BSTCVRT_VCTRL1: 290 case CS35L36_BSTCVRT_VCTRL2: 291 case CS35L36_BSTCVRT_PEAK_CUR: 292 case CS35L36_BSTCVRT_SFT_RAMP: 293 case CS35L36_BSTCVRT_COEFF: 294 case CS35L36_BSTCVRT_SLOPE_LBST: 295 case CS35L36_BSTCVRT_SW_FREQ: 296 case CS35L36_BSTCVRT_DCM_CTRL: 297 case CS35L36_BSTCVRT_DCM_MODE_FORCE: 298 case CS35L36_BSTCVRT_OVERVOLT_CTRL: 299 case CS35L36_BST_TST_MANUAL: 300 case CS35L36_BST_ANA2_TEST: 301 case CS35L36_VPI_LIMIT_MODE: 302 case CS35L36_VPI_LIMIT_MINMAX: 303 case CS35L36_VPI_VP_THLD: 304 case CS35L36_VPI_TRACK_CTRL: 305 case CS35L36_VPI_TRIG_MODE_CTRL: 306 case CS35L36_VPI_TRIG_STEPS: 307 case CS35L36_VI_SPKMON_FILT: 308 case CS35L36_VI_SPKMON_GAIN: 309 case CS35L36_VI_SPKMON_IP_SEL: 310 case CS35L36_DTEMP_WARN_THLD: 311 case CS35L36_DTEMP_STATUS: 312 case CS35L36_VPVBST_FS_SEL: 313 case CS35L36_VPVBST_VP_CTRL: 314 case CS35L36_VPVBST_VBST_CTRL: 315 case CS35L36_ASP_TX_PIN_CTRL: 316 case CS35L36_ASP_RATE_CTRL: 317 case CS35L36_ASP_FORMAT: 318 case CS35L36_ASP_FRAME_CTRL: 319 case CS35L36_ASP_TX1_TX2_SLOT: 320 case CS35L36_ASP_TX3_TX4_SLOT: 321 case CS35L36_ASP_TX5_TX6_SLOT: 322 case CS35L36_ASP_TX7_TX8_SLOT: 323 case CS35L36_ASP_RX1_SLOT: 324 case CS35L36_ASP_RX_TX_EN: 325 case CS35L36_ASP_RX1_SEL: 326 case CS35L36_ASP_TX1_SEL: 327 case CS35L36_ASP_TX2_SEL: 328 case CS35L36_ASP_TX3_SEL: 329 case CS35L36_ASP_TX4_SEL: 330 case CS35L36_ASP_TX5_SEL: 331 case CS35L36_ASP_TX6_SEL: 332 case CS35L36_SWIRE_P1_TX1_SEL: 333 case CS35L36_SWIRE_P1_TX2_SEL: 334 case CS35L36_SWIRE_P2_TX1_SEL: 335 case CS35L36_SWIRE_P2_TX2_SEL: 336 case CS35L36_SWIRE_P2_TX3_SEL: 337 case CS35L36_SWIRE_DP1_FIFO_CFG: 338 case CS35L36_SWIRE_DP2_FIFO_CFG: 339 case CS35L36_SWIRE_DP3_FIFO_CFG: 340 case CS35L36_SWIRE_PCM_RX_DATA: 341 case CS35L36_SWIRE_FS_SEL: 342 case CS35L36_AMP_DIG_VOL_CTRL: 343 case CS35L36_VPBR_CFG: 344 case CS35L36_VBBR_CFG: 345 case CS35L36_VPBR_STATUS: 346 case CS35L36_VBBR_STATUS: 347 case CS35L36_OVERTEMP_CFG: 348 case CS35L36_AMP_ERR_VOL: 349 case CS35L36_CLASSH_CFG: 350 case CS35L36_CLASSH_FET_DRV_CFG: 351 case CS35L36_NG_CFG: 352 case CS35L36_AMP_GAIN_CTRL: 353 case CS35L36_PWM_MOD_IO_CTRL: 354 case CS35L36_PWM_MOD_STATUS: 355 case CS35L36_DAC_MSM_CFG: 356 case CS35L36_AMP_SLOPE_CTRL: 357 case CS35L36_AMP_PDM_VOLUME: 358 case CS35L36_AMP_PDM_RATE_CTRL: 359 case CS35L36_PDM_CH_SEL: 360 case CS35L36_AMP_NG_CTRL: 361 case CS35L36_PDM_HIGHFILT_CTRL: 362 case CS35L36_INT1_STATUS: 363 case CS35L36_INT2_STATUS: 364 case CS35L36_INT3_STATUS: 365 case CS35L36_INT4_STATUS: 366 case CS35L36_INT1_RAW_STATUS: 367 case CS35L36_INT2_RAW_STATUS: 368 case CS35L36_INT3_RAW_STATUS: 369 case CS35L36_INT4_RAW_STATUS: 370 case CS35L36_INT1_MASK: 371 case CS35L36_INT2_MASK: 372 case CS35L36_INT3_MASK: 373 case CS35L36_INT4_MASK: 374 case CS35L36_INT1_EDGE_LVL_CTRL: 375 case CS35L36_INT3_EDGE_LVL_CTRL: 376 case CS35L36_PAC_INT_STATUS: 377 case CS35L36_PAC_INT_RAW_STATUS: 378 case CS35L36_PAC_INT_FLUSH_CTRL: 379 case CS35L36_PAC_INT0_CTRL: 380 case CS35L36_PAC_INT1_CTRL: 381 case CS35L36_PAC_INT2_CTRL: 382 case CS35L36_PAC_INT3_CTRL: 383 case CS35L36_PAC_INT4_CTRL: 384 case CS35L36_PAC_INT5_CTRL: 385 case CS35L36_PAC_INT6_CTRL: 386 case CS35L36_PAC_INT7_CTRL: 387 return true; 388 default: 389 if (reg >= CS35L36_PAC_PMEM_WORD0 && 390 reg <= CS35L36_PAC_PMEM_WORD1023) 391 return true; 392 else 393 return false; 394 } 395 } 396 397 static bool cs35l36_precious_reg(struct device *dev, unsigned int reg) 398 { 399 switch (reg) { 400 case CS35L36_TESTKEY_CTRL: 401 case CS35L36_USERKEY_CTL: 402 case CS35L36_TST_FS_MON0: 403 return true; 404 default: 405 return false; 406 } 407 } 408 409 static bool cs35l36_volatile_reg(struct device *dev, unsigned int reg) 410 { 411 switch (reg) { 412 case CS35L36_SW_RESET: 413 case CS35L36_SW_REV: 414 case CS35L36_HW_REV: 415 case CS35L36_TESTKEY_CTRL: 416 case CS35L36_USERKEY_CTL: 417 case CS35L36_DEVICE_ID: 418 case CS35L36_FAB_ID: 419 case CS35L36_REV_ID: 420 case CS35L36_INT1_STATUS: 421 case CS35L36_INT2_STATUS: 422 case CS35L36_INT3_STATUS: 423 case CS35L36_INT4_STATUS: 424 case CS35L36_INT1_RAW_STATUS: 425 case CS35L36_INT2_RAW_STATUS: 426 case CS35L36_INT3_RAW_STATUS: 427 case CS35L36_INT4_RAW_STATUS: 428 case CS35L36_INT1_MASK: 429 case CS35L36_INT2_MASK: 430 case CS35L36_INT3_MASK: 431 case CS35L36_INT4_MASK: 432 case CS35L36_INT1_EDGE_LVL_CTRL: 433 case CS35L36_INT3_EDGE_LVL_CTRL: 434 case CS35L36_PAC_INT_STATUS: 435 case CS35L36_PAC_INT_RAW_STATUS: 436 case CS35L36_PAC_INT_FLUSH_CTRL: 437 return true; 438 default: 439 if (reg >= CS35L36_PAC_PMEM_WORD0 && 440 reg <= CS35L36_PAC_PMEM_WORD1023) 441 return true; 442 else 443 return false; 444 } 445 } 446 447 static DECLARE_TLV_DB_SCALE(dig_vol_tlv, -10200, 25, 0); 448 static DECLARE_TLV_DB_SCALE(amp_gain_tlv, 0, 1, 1); 449 450 static const char * const cs35l36_pcm_sftramp_text[] = { 451 "Off", ".5ms", "1ms", "2ms", "4ms", "8ms", "15ms", "30ms"}; 452 453 static SOC_ENUM_SINGLE_DECL(pcm_sft_ramp, CS35L36_AMP_DIG_VOL_CTRL, 0, 454 cs35l36_pcm_sftramp_text); 455 456 static int cs35l36_ldm_sel_get(struct snd_kcontrol *kcontrol, 457 struct snd_ctl_elem_value *ucontrol) 458 { 459 struct snd_soc_component *component = 460 snd_soc_kcontrol_component(kcontrol); 461 struct cs35l36_private *cs35l36 = 462 snd_soc_component_get_drvdata(component); 463 464 ucontrol->value.integer.value[0] = cs35l36->ldm_mode_sel; 465 466 return 0; 467 } 468 469 static int cs35l36_ldm_sel_put(struct snd_kcontrol *kcontrol, 470 struct snd_ctl_elem_value *ucontrol) 471 { 472 struct snd_soc_component *component = 473 snd_soc_kcontrol_component(kcontrol); 474 struct cs35l36_private *cs35l36 = 475 snd_soc_component_get_drvdata(component); 476 int val = (ucontrol->value.integer.value[0]) ? CS35L36_NG_AMP_EN_MASK : 477 0; 478 479 cs35l36->ldm_mode_sel = val; 480 481 regmap_update_bits(cs35l36->regmap, CS35L36_NG_CFG, 482 CS35L36_NG_AMP_EN_MASK, val); 483 484 return 0; 485 } 486 487 static const struct snd_kcontrol_new cs35l36_aud_controls[] = { 488 SOC_SINGLE_SX_TLV("Digital PCM Volume", CS35L36_AMP_DIG_VOL_CTRL, 489 3, 0x4D0, 0x390, dig_vol_tlv), 490 SOC_SINGLE_TLV("Analog PCM Volume", CS35L36_AMP_GAIN_CTRL, 5, 0x13, 0, 491 amp_gain_tlv), 492 SOC_ENUM("PCM Soft Ramp", pcm_sft_ramp), 493 SOC_SINGLE("Amp Gain Zero-Cross Switch", CS35L36_AMP_GAIN_CTRL, 494 CS35L36_AMP_ZC_SHIFT, 1, 0), 495 SOC_SINGLE("PDM LDM Enter Ramp Switch", CS35L36_DAC_MSM_CFG, 496 CS35L36_PDM_LDM_ENTER_SHIFT, 1, 0), 497 SOC_SINGLE("PDM LDM Exit Ramp Switch", CS35L36_DAC_MSM_CFG, 498 CS35L36_PDM_LDM_EXIT_SHIFT, 1, 0), 499 SOC_SINGLE_BOOL_EXT("LDM Select Switch", 0, cs35l36_ldm_sel_get, 500 cs35l36_ldm_sel_put), 501 }; 502 503 static int cs35l36_main_amp_event(struct snd_soc_dapm_widget *w, 504 struct snd_kcontrol *kcontrol, int event) 505 { 506 struct snd_soc_component *component = 507 snd_soc_dapm_to_component(w->dapm); 508 struct cs35l36_private *cs35l36 = 509 snd_soc_component_get_drvdata(component); 510 u32 reg; 511 512 switch (event) { 513 case SND_SOC_DAPM_POST_PMU: 514 regmap_update_bits(cs35l36->regmap, CS35L36_PWR_CTRL1, 515 CS35L36_GLOBAL_EN_MASK, 516 1 << CS35L36_GLOBAL_EN_SHIFT); 517 518 usleep_range(2000, 2100); 519 520 regmap_read(cs35l36->regmap, CS35L36_INT4_RAW_STATUS, ®); 521 522 if (WARN_ON_ONCE(reg & CS35L36_PLL_UNLOCK_MASK)) 523 dev_crit(cs35l36->dev, "PLL Unlocked\n"); 524 525 regmap_update_bits(cs35l36->regmap, CS35L36_ASP_RX1_SEL, 526 CS35L36_PCM_RX_SEL_MASK, 527 CS35L36_PCM_RX_SEL_PCM); 528 regmap_update_bits(cs35l36->regmap, CS35L36_AMP_OUT_MUTE, 529 CS35L36_AMP_MUTE_MASK, 530 0 << CS35L36_AMP_MUTE_SHIFT); 531 break; 532 case SND_SOC_DAPM_PRE_PMD: 533 regmap_update_bits(cs35l36->regmap, CS35L36_ASP_RX1_SEL, 534 CS35L36_PCM_RX_SEL_MASK, 535 CS35L36_PCM_RX_SEL_ZERO); 536 regmap_update_bits(cs35l36->regmap, CS35L36_AMP_OUT_MUTE, 537 CS35L36_AMP_MUTE_MASK, 538 1 << CS35L36_AMP_MUTE_SHIFT); 539 break; 540 case SND_SOC_DAPM_POST_PMD: 541 regmap_update_bits(cs35l36->regmap, CS35L36_PWR_CTRL1, 542 CS35L36_GLOBAL_EN_MASK, 543 0 << CS35L36_GLOBAL_EN_SHIFT); 544 545 usleep_range(2000, 2100); 546 break; 547 default: 548 dev_dbg(component->dev, "Invalid event = 0x%x\n", event); 549 return -EINVAL; 550 } 551 552 return 0; 553 } 554 555 static int cs35l36_boost_event(struct snd_soc_dapm_widget *w, 556 struct snd_kcontrol *kcontrol, int event) 557 { 558 struct snd_soc_component *component = 559 snd_soc_dapm_to_component(w->dapm); 560 struct cs35l36_private *cs35l36 = 561 snd_soc_component_get_drvdata(component); 562 563 switch (event) { 564 case SND_SOC_DAPM_POST_PMU: 565 if (!cs35l36->pdata.extern_boost) 566 regmap_update_bits(cs35l36->regmap, CS35L36_PWR_CTRL2, 567 CS35L36_BST_EN_MASK, 568 CS35L36_BST_EN << 569 CS35L36_BST_EN_SHIFT); 570 break; 571 case SND_SOC_DAPM_POST_PMD: 572 if (!cs35l36->pdata.extern_boost) 573 regmap_update_bits(cs35l36->regmap, CS35L36_PWR_CTRL2, 574 CS35L36_BST_EN_MASK, 575 CS35L36_BST_DIS_VP << 576 CS35L36_BST_EN_SHIFT); 577 break; 578 default: 579 dev_dbg(component->dev, "Invalid event = 0x%x\n", event); 580 return -EINVAL; 581 } 582 583 return 0; 584 } 585 586 static const char * const cs35l36_chan_text[] = { 587 "RX1", 588 "RX2", 589 }; 590 591 static SOC_ENUM_SINGLE_DECL(chansel_enum, CS35L36_ASP_RX1_SLOT, 0, 592 cs35l36_chan_text); 593 594 static const struct snd_kcontrol_new cs35l36_chan_mux = 595 SOC_DAPM_ENUM("Input Mux", chansel_enum); 596 597 static const struct snd_kcontrol_new amp_enable_ctrl = 598 SOC_DAPM_SINGLE_AUTODISABLE("Switch", CS35L36_AMP_OUT_MUTE, 599 CS35L36_AMP_MUTE_SHIFT, 1, 1); 600 601 static const struct snd_kcontrol_new boost_ctrl = 602 SOC_DAPM_SINGLE_VIRT("Switch", 1); 603 604 static const char * const asp_tx_src_text[] = { 605 "Zero Fill", "ASPRX1", "VMON", "IMON", "ERRVOL", "VPMON", "VBSTMON" 606 }; 607 608 static const unsigned int asp_tx_src_values[] = { 609 0x00, 0x08, 0x18, 0x19, 0x20, 0x28, 0x29 610 }; 611 612 static SOC_VALUE_ENUM_SINGLE_DECL(asp_tx1_src_enum, CS35L36_ASP_TX1_SEL, 0, 613 CS35L36_APS_TX_SEL_MASK, asp_tx_src_text, 614 asp_tx_src_values); 615 616 static const struct snd_kcontrol_new asp_tx1_src = 617 SOC_DAPM_ENUM("ASPTX1SRC", asp_tx1_src_enum); 618 619 static SOC_VALUE_ENUM_SINGLE_DECL(asp_tx2_src_enum, CS35L36_ASP_TX2_SEL, 0, 620 CS35L36_APS_TX_SEL_MASK, asp_tx_src_text, 621 asp_tx_src_values); 622 623 static const struct snd_kcontrol_new asp_tx2_src = 624 SOC_DAPM_ENUM("ASPTX2SRC", asp_tx2_src_enum); 625 626 static SOC_VALUE_ENUM_SINGLE_DECL(asp_tx3_src_enum, CS35L36_ASP_TX3_SEL, 0, 627 CS35L36_APS_TX_SEL_MASK, asp_tx_src_text, 628 asp_tx_src_values); 629 630 static const struct snd_kcontrol_new asp_tx3_src = 631 SOC_DAPM_ENUM("ASPTX3SRC", asp_tx3_src_enum); 632 633 static SOC_VALUE_ENUM_SINGLE_DECL(asp_tx4_src_enum, CS35L36_ASP_TX4_SEL, 0, 634 CS35L36_APS_TX_SEL_MASK, asp_tx_src_text, 635 asp_tx_src_values); 636 637 static const struct snd_kcontrol_new asp_tx4_src = 638 SOC_DAPM_ENUM("ASPTX4SRC", asp_tx4_src_enum); 639 640 static SOC_VALUE_ENUM_SINGLE_DECL(asp_tx5_src_enum, CS35L36_ASP_TX5_SEL, 0, 641 CS35L36_APS_TX_SEL_MASK, asp_tx_src_text, 642 asp_tx_src_values); 643 644 static const struct snd_kcontrol_new asp_tx5_src = 645 SOC_DAPM_ENUM("ASPTX5SRC", asp_tx5_src_enum); 646 647 static SOC_VALUE_ENUM_SINGLE_DECL(asp_tx6_src_enum, CS35L36_ASP_TX6_SEL, 0, 648 CS35L36_APS_TX_SEL_MASK, asp_tx_src_text, 649 asp_tx_src_values); 650 651 static const struct snd_kcontrol_new asp_tx6_src = 652 SOC_DAPM_ENUM("ASPTX6SRC", asp_tx6_src_enum); 653 654 static const struct snd_soc_dapm_widget cs35l36_dapm_widgets[] = { 655 SND_SOC_DAPM_MUX("Channel Mux", SND_SOC_NOPM, 0, 0, &cs35l36_chan_mux), 656 SND_SOC_DAPM_AIF_IN("SDIN", NULL, 0, CS35L36_ASP_RX_TX_EN, 16, 0), 657 658 SND_SOC_DAPM_OUT_DRV_E("Main AMP", CS35L36_PWR_CTRL2, 0, 0, NULL, 0, 659 cs35l36_main_amp_event, SND_SOC_DAPM_POST_PMD | 660 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 661 662 SND_SOC_DAPM_OUTPUT("SPK"), 663 SND_SOC_DAPM_SWITCH("AMP Enable", SND_SOC_NOPM, 0, 1, &_enable_ctrl), 664 SND_SOC_DAPM_MIXER("CLASS H", CS35L36_PWR_CTRL3, 4, 0, NULL, 0), 665 SND_SOC_DAPM_SWITCH_E("BOOST Enable", SND_SOC_NOPM, 0, 0, &boost_ctrl, 666 cs35l36_boost_event, SND_SOC_DAPM_POST_PMD | 667 SND_SOC_DAPM_POST_PMU), 668 669 SND_SOC_DAPM_AIF_OUT("ASPTX1", NULL, 0, CS35L36_ASP_RX_TX_EN, 0, 0), 670 SND_SOC_DAPM_AIF_OUT("ASPTX2", NULL, 1, CS35L36_ASP_RX_TX_EN, 1, 0), 671 SND_SOC_DAPM_AIF_OUT("ASPTX3", NULL, 2, CS35L36_ASP_RX_TX_EN, 2, 0), 672 SND_SOC_DAPM_AIF_OUT("ASPTX4", NULL, 3, CS35L36_ASP_RX_TX_EN, 3, 0), 673 SND_SOC_DAPM_AIF_OUT("ASPTX5", NULL, 4, CS35L36_ASP_RX_TX_EN, 4, 0), 674 SND_SOC_DAPM_AIF_OUT("ASPTX6", NULL, 5, CS35L36_ASP_RX_TX_EN, 5, 0), 675 676 SND_SOC_DAPM_MUX("ASPTX1SRC", SND_SOC_NOPM, 0, 0, &asp_tx1_src), 677 SND_SOC_DAPM_MUX("ASPTX2SRC", SND_SOC_NOPM, 0, 0, &asp_tx2_src), 678 SND_SOC_DAPM_MUX("ASPTX3SRC", SND_SOC_NOPM, 0, 0, &asp_tx3_src), 679 SND_SOC_DAPM_MUX("ASPTX4SRC", SND_SOC_NOPM, 0, 0, &asp_tx4_src), 680 SND_SOC_DAPM_MUX("ASPTX5SRC", SND_SOC_NOPM, 0, 0, &asp_tx5_src), 681 SND_SOC_DAPM_MUX("ASPTX6SRC", SND_SOC_NOPM, 0, 0, &asp_tx6_src), 682 683 SND_SOC_DAPM_ADC("VMON ADC", NULL, CS35L36_PWR_CTRL2, 12, 0), 684 SND_SOC_DAPM_ADC("IMON ADC", NULL, CS35L36_PWR_CTRL2, 13, 0), 685 SND_SOC_DAPM_ADC("VPMON ADC", NULL, CS35L36_PWR_CTRL2, 8, 0), 686 SND_SOC_DAPM_ADC("VBSTMON ADC", NULL, CS35L36_PWR_CTRL2, 9, 0), 687 688 SND_SOC_DAPM_INPUT("VP"), 689 SND_SOC_DAPM_INPUT("VBST"), 690 SND_SOC_DAPM_INPUT("VSENSE"), 691 }; 692 693 static const struct snd_soc_dapm_route cs35l36_audio_map[] = { 694 {"VPMON ADC", NULL, "VP"}, 695 {"VBSTMON ADC", NULL, "VBST"}, 696 {"IMON ADC", NULL, "VSENSE"}, 697 {"VMON ADC", NULL, "VSENSE"}, 698 699 {"ASPTX1SRC", "IMON", "IMON ADC"}, 700 {"ASPTX1SRC", "VMON", "VMON ADC"}, 701 {"ASPTX1SRC", "VBSTMON", "VBSTMON ADC"}, 702 {"ASPTX1SRC", "VPMON", "VPMON ADC"}, 703 704 {"ASPTX2SRC", "IMON", "IMON ADC"}, 705 {"ASPTX2SRC", "VMON", "VMON ADC"}, 706 {"ASPTX2SRC", "VBSTMON", "VBSTMON ADC"}, 707 {"ASPTX2SRC", "VPMON", "VPMON ADC"}, 708 709 {"ASPTX3SRC", "IMON", "IMON ADC"}, 710 {"ASPTX3SRC", "VMON", "VMON ADC"}, 711 {"ASPTX3SRC", "VBSTMON", "VBSTMON ADC"}, 712 {"ASPTX3SRC", "VPMON", "VPMON ADC"}, 713 714 {"ASPTX4SRC", "IMON", "IMON ADC"}, 715 {"ASPTX4SRC", "VMON", "VMON ADC"}, 716 {"ASPTX4SRC", "VBSTMON", "VBSTMON ADC"}, 717 {"ASPTX4SRC", "VPMON", "VPMON ADC"}, 718 719 {"ASPTX5SRC", "IMON", "IMON ADC"}, 720 {"ASPTX5SRC", "VMON", "VMON ADC"}, 721 {"ASPTX5SRC", "VBSTMON", "VBSTMON ADC"}, 722 {"ASPTX5SRC", "VPMON", "VPMON ADC"}, 723 724 {"ASPTX6SRC", "IMON", "IMON ADC"}, 725 {"ASPTX6SRC", "VMON", "VMON ADC"}, 726 {"ASPTX6SRC", "VBSTMON", "VBSTMON ADC"}, 727 {"ASPTX6SRC", "VPMON", "VPMON ADC"}, 728 729 {"ASPTX1", NULL, "ASPTX1SRC"}, 730 {"ASPTX2", NULL, "ASPTX2SRC"}, 731 {"ASPTX3", NULL, "ASPTX3SRC"}, 732 {"ASPTX4", NULL, "ASPTX4SRC"}, 733 {"ASPTX5", NULL, "ASPTX5SRC"}, 734 {"ASPTX6", NULL, "ASPTX6SRC"}, 735 736 {"AMP Capture", NULL, "ASPTX1"}, 737 {"AMP Capture", NULL, "ASPTX2"}, 738 {"AMP Capture", NULL, "ASPTX3"}, 739 {"AMP Capture", NULL, "ASPTX4"}, 740 {"AMP Capture", NULL, "ASPTX5"}, 741 {"AMP Capture", NULL, "ASPTX6"}, 742 743 {"AMP Enable", "Switch", "AMP Playback"}, 744 {"SDIN", NULL, "AMP Enable"}, 745 {"Channel Mux", "RX1", "SDIN"}, 746 {"Channel Mux", "RX2", "SDIN"}, 747 {"BOOST Enable", "Switch", "Channel Mux"}, 748 {"CLASS H", NULL, "BOOST Enable"}, 749 {"Main AMP", NULL, "Channel Mux"}, 750 {"Main AMP", NULL, "CLASS H"}, 751 {"SPK", NULL, "Main AMP"}, 752 }; 753 754 static int cs35l36_set_dai_fmt(struct snd_soc_dai *component_dai, 755 unsigned int fmt) 756 { 757 struct cs35l36_private *cs35l36 = 758 snd_soc_component_get_drvdata(component_dai->component); 759 unsigned int asp_fmt, lrclk_fmt, sclk_fmt, slave_mode, clk_frc; 760 761 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 762 case SND_SOC_DAIFMT_CBM_CFM: 763 slave_mode = 1; 764 break; 765 case SND_SOC_DAIFMT_CBS_CFS: 766 slave_mode = 0; 767 break; 768 default: 769 return -EINVAL; 770 } 771 772 regmap_update_bits(cs35l36->regmap, CS35L36_ASP_TX_PIN_CTRL, 773 CS35L36_SCLK_MSTR_MASK, 774 slave_mode << CS35L36_SCLK_MSTR_SHIFT); 775 regmap_update_bits(cs35l36->regmap, CS35L36_ASP_RATE_CTRL, 776 CS35L36_LRCLK_MSTR_MASK, 777 slave_mode << CS35L36_LRCLK_MSTR_SHIFT); 778 779 switch (fmt & SND_SOC_DAIFMT_CLOCK_MASK) { 780 case SND_SOC_DAIFMT_CONT: 781 clk_frc = 1; 782 break; 783 case SND_SOC_DAIFMT_GATED: 784 clk_frc = 0; 785 break; 786 default: 787 return -EINVAL; 788 } 789 790 regmap_update_bits(cs35l36->regmap, CS35L36_ASP_TX_PIN_CTRL, 791 CS35L36_SCLK_FRC_MASK, clk_frc << 792 CS35L36_SCLK_FRC_SHIFT); 793 regmap_update_bits(cs35l36->regmap, CS35L36_ASP_RATE_CTRL, 794 CS35L36_LRCLK_FRC_MASK, clk_frc << 795 CS35L36_LRCLK_FRC_SHIFT); 796 797 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 798 case SND_SOC_DAIFMT_DSP_A: 799 asp_fmt = 0; 800 break; 801 case SND_SOC_DAIFMT_I2S: 802 asp_fmt = 2; 803 break; 804 default: 805 return -EINVAL; 806 } 807 808 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 809 case SND_SOC_DAIFMT_NB_IF: 810 lrclk_fmt = 1; 811 sclk_fmt = 0; 812 break; 813 case SND_SOC_DAIFMT_IB_NF: 814 lrclk_fmt = 0; 815 sclk_fmt = 1; 816 break; 817 case SND_SOC_DAIFMT_IB_IF: 818 lrclk_fmt = 1; 819 sclk_fmt = 1; 820 break; 821 case SND_SOC_DAIFMT_NB_NF: 822 lrclk_fmt = 0; 823 sclk_fmt = 0; 824 break; 825 default: 826 return -EINVAL; 827 } 828 829 regmap_update_bits(cs35l36->regmap, CS35L36_ASP_RATE_CTRL, 830 CS35L36_LRCLK_INV_MASK, 831 lrclk_fmt << CS35L36_LRCLK_INV_SHIFT); 832 regmap_update_bits(cs35l36->regmap, CS35L36_ASP_TX_PIN_CTRL, 833 CS35L36_SCLK_INV_MASK, 834 sclk_fmt << CS35L36_SCLK_INV_SHIFT); 835 regmap_update_bits(cs35l36->regmap, CS35L36_ASP_FORMAT, 836 CS35L36_ASP_FMT_MASK, asp_fmt); 837 838 return 0; 839 } 840 841 struct cs35l36_global_fs_config { 842 int rate; 843 int fs_cfg; 844 }; 845 846 static const struct cs35l36_global_fs_config cs35l36_fs_rates[] = { 847 {12000, 0x01}, 848 {24000, 0x02}, 849 {48000, 0x03}, 850 {96000, 0x04}, 851 {192000, 0x05}, 852 {384000, 0x06}, 853 {11025, 0x09}, 854 {22050, 0x0A}, 855 {44100, 0x0B}, 856 {88200, 0x0C}, 857 {176400, 0x0D}, 858 {8000, 0x11}, 859 {16000, 0x12}, 860 {32000, 0x13}, 861 }; 862 863 static int cs35l36_pcm_hw_params(struct snd_pcm_substream *substream, 864 struct snd_pcm_hw_params *params, 865 struct snd_soc_dai *dai) 866 { 867 struct cs35l36_private *cs35l36 = 868 snd_soc_component_get_drvdata(dai->component); 869 unsigned int asp_width, global_fs = params_rate(params); 870 int i; 871 872 for (i = 0; i < ARRAY_SIZE(cs35l36_fs_rates); i++) { 873 if (global_fs == cs35l36_fs_rates[i].rate) 874 regmap_update_bits(cs35l36->regmap, 875 CS35L36_GLOBAL_CLK_CTRL, 876 CS35L36_GLOBAL_FS_MASK, 877 cs35l36_fs_rates[i].fs_cfg << 878 CS35L36_GLOBAL_FS_SHIFT); 879 } 880 881 switch (params_width(params)) { 882 case 16: 883 asp_width = CS35L36_ASP_WIDTH_16; 884 break; 885 case 24: 886 asp_width = CS35L36_ASP_WIDTH_24; 887 break; 888 case 32: 889 asp_width = CS35L36_ASP_WIDTH_32; 890 break; 891 default: 892 return -EINVAL; 893 } 894 895 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 896 regmap_update_bits(cs35l36->regmap, CS35L36_ASP_FRAME_CTRL, 897 CS35L36_ASP_RX_WIDTH_MASK, 898 asp_width << CS35L36_ASP_RX_WIDTH_SHIFT); 899 } else { 900 regmap_update_bits(cs35l36->regmap, CS35L36_ASP_FRAME_CTRL, 901 CS35L36_ASP_TX_WIDTH_MASK, 902 asp_width << CS35L36_ASP_TX_WIDTH_SHIFT); 903 } 904 905 return 0; 906 } 907 908 static int cs35l36_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, 909 unsigned int freq, int dir) 910 { 911 struct snd_soc_component *component = dai->component; 912 struct cs35l36_private *cs35l36 = 913 snd_soc_component_get_drvdata(component); 914 int fs1, fs2; 915 916 if (freq > CS35L36_FS_NOM_6MHZ) { 917 fs1 = CS35L36_FS1_DEFAULT_VAL; 918 fs2 = CS35L36_FS2_DEFAULT_VAL; 919 } else { 920 fs1 = 3 * ((CS35L36_FS_NOM_6MHZ * 4 + freq - 1) / freq) + 4; 921 fs2 = 5 * ((CS35L36_FS_NOM_6MHZ * 4 + freq - 1) / freq) + 4; 922 } 923 924 regmap_write(cs35l36->regmap, CS35L36_TESTKEY_CTRL, 925 CS35L36_TEST_UNLOCK1); 926 regmap_write(cs35l36->regmap, CS35L36_TESTKEY_CTRL, 927 CS35L36_TEST_UNLOCK2); 928 929 regmap_update_bits(cs35l36->regmap, CS35L36_TST_FS_MON0, 930 CS35L36_FS1_WINDOW_MASK | CS35L36_FS2_WINDOW_MASK, 931 fs1 | (fs2 << CS35L36_FS2_WINDOW_SHIFT)); 932 933 regmap_write(cs35l36->regmap, CS35L36_TESTKEY_CTRL, 934 CS35L36_TEST_LOCK1); 935 regmap_write(cs35l36->regmap, CS35L36_TESTKEY_CTRL, 936 CS35L36_TEST_LOCK2); 937 return 0; 938 } 939 940 static const struct cs35l36_pll_config *cs35l36_get_clk_config( 941 struct cs35l36_private *cs35l36, int freq) 942 { 943 int i; 944 945 for (i = 0; i < ARRAY_SIZE(cs35l36_pll_sysclk); i++) { 946 if (cs35l36_pll_sysclk[i].freq == freq) 947 return &cs35l36_pll_sysclk[i]; 948 } 949 950 return NULL; 951 } 952 953 static const unsigned int cs35l36_src_rates[] = { 954 8000, 12000, 11025, 16000, 22050, 24000, 32000, 955 44100, 48000, 88200, 96000, 176400, 192000, 384000 956 }; 957 958 static const struct snd_pcm_hw_constraint_list cs35l36_constraints = { 959 .count = ARRAY_SIZE(cs35l36_src_rates), 960 .list = cs35l36_src_rates, 961 }; 962 963 static int cs35l36_pcm_startup(struct snd_pcm_substream *substream, 964 struct snd_soc_dai *dai) 965 { 966 snd_pcm_hw_constraint_list(substream->runtime, 0, 967 SNDRV_PCM_HW_PARAM_RATE, &cs35l36_constraints); 968 969 return 0; 970 } 971 972 static const struct snd_soc_dai_ops cs35l36_ops = { 973 .startup = cs35l36_pcm_startup, 974 .set_fmt = cs35l36_set_dai_fmt, 975 .hw_params = cs35l36_pcm_hw_params, 976 .set_sysclk = cs35l36_dai_set_sysclk, 977 }; 978 979 static struct snd_soc_dai_driver cs35l36_dai[] = { 980 { 981 .name = "cs35l36-pcm", 982 .id = 0, 983 .playback = { 984 .stream_name = "AMP Playback", 985 .channels_min = 1, 986 .channels_max = 8, 987 .rates = SNDRV_PCM_RATE_KNOT, 988 .formats = CS35L36_RX_FORMATS, 989 }, 990 .capture = { 991 .stream_name = "AMP Capture", 992 .channels_min = 1, 993 .channels_max = 8, 994 .rates = SNDRV_PCM_RATE_KNOT, 995 .formats = CS35L36_TX_FORMATS, 996 }, 997 .ops = &cs35l36_ops, 998 .symmetric_rates = 1, 999 }, 1000 }; 1001 1002 static int cs35l36_component_set_sysclk(struct snd_soc_component *component, 1003 int clk_id, int source, unsigned int freq, 1004 int dir) 1005 { 1006 struct cs35l36_private *cs35l36 = 1007 snd_soc_component_get_drvdata(component); 1008 const struct cs35l36_pll_config *clk_cfg; 1009 int prev_clksrc; 1010 bool pdm_switch; 1011 1012 prev_clksrc = cs35l36->clksrc; 1013 1014 switch (clk_id) { 1015 case 0: 1016 cs35l36->clksrc = CS35L36_PLLSRC_SCLK; 1017 break; 1018 case 1: 1019 cs35l36->clksrc = CS35L36_PLLSRC_LRCLK; 1020 break; 1021 case 2: 1022 cs35l36->clksrc = CS35L36_PLLSRC_PDMCLK; 1023 break; 1024 case 3: 1025 cs35l36->clksrc = CS35L36_PLLSRC_SELF; 1026 break; 1027 case 4: 1028 cs35l36->clksrc = CS35L36_PLLSRC_MCLK; 1029 break; 1030 default: 1031 return -EINVAL; 1032 } 1033 1034 clk_cfg = cs35l36_get_clk_config(cs35l36, freq); 1035 if (clk_cfg == NULL) { 1036 dev_err(component->dev, "Invalid CLK Config Freq: %d\n", freq); 1037 return -EINVAL; 1038 } 1039 1040 regmap_update_bits(cs35l36->regmap, CS35L36_PLL_CLK_CTRL, 1041 CS35L36_PLL_OPENLOOP_MASK, 1042 1 << CS35L36_PLL_OPENLOOP_SHIFT); 1043 regmap_update_bits(cs35l36->regmap, CS35L36_PLL_CLK_CTRL, 1044 CS35L36_REFCLK_FREQ_MASK, 1045 clk_cfg->clk_cfg << CS35L36_REFCLK_FREQ_SHIFT); 1046 regmap_update_bits(cs35l36->regmap, CS35L36_PLL_CLK_CTRL, 1047 CS35L36_PLL_REFCLK_EN_MASK, 1048 0 << CS35L36_PLL_REFCLK_EN_SHIFT); 1049 regmap_update_bits(cs35l36->regmap, CS35L36_PLL_CLK_CTRL, 1050 CS35L36_PLL_CLK_SEL_MASK, 1051 cs35l36->clksrc); 1052 regmap_update_bits(cs35l36->regmap, CS35L36_PLL_CLK_CTRL, 1053 CS35L36_PLL_OPENLOOP_MASK, 1054 0 << CS35L36_PLL_OPENLOOP_SHIFT); 1055 regmap_update_bits(cs35l36->regmap, CS35L36_PLL_CLK_CTRL, 1056 CS35L36_PLL_REFCLK_EN_MASK, 1057 1 << CS35L36_PLL_REFCLK_EN_SHIFT); 1058 1059 if (cs35l36->rev_id == CS35L36_REV_A0) { 1060 regmap_write(cs35l36->regmap, CS35L36_TESTKEY_CTRL, 1061 CS35L36_TEST_UNLOCK1); 1062 regmap_write(cs35l36->regmap, CS35L36_TESTKEY_CTRL, 1063 CS35L36_TEST_UNLOCK2); 1064 1065 regmap_write(cs35l36->regmap, CS35L36_DCO_CTRL, 0x00036DA8); 1066 regmap_write(cs35l36->regmap, CS35L36_MISC_CTRL, 0x0100EE0E); 1067 1068 regmap_update_bits(cs35l36->regmap, CS35L36_PLL_LOOP_PARAMS, 1069 CS35L36_PLL_IGAIN_MASK, 1070 CS35L36_PLL_IGAIN << 1071 CS35L36_PLL_IGAIN_SHIFT); 1072 regmap_update_bits(cs35l36->regmap, CS35L36_PLL_LOOP_PARAMS, 1073 CS35L36_PLL_FFL_IGAIN_MASK, 1074 clk_cfg->fll_igain); 1075 1076 regmap_write(cs35l36->regmap, CS35L36_TESTKEY_CTRL, 1077 CS35L36_TEST_LOCK1); 1078 regmap_write(cs35l36->regmap, CS35L36_TESTKEY_CTRL, 1079 CS35L36_TEST_LOCK2); 1080 } 1081 1082 if (cs35l36->clksrc == CS35L36_PLLSRC_PDMCLK) { 1083 pdm_switch = cs35l36->ldm_mode_sel && 1084 (prev_clksrc != CS35L36_PLLSRC_PDMCLK); 1085 1086 if (pdm_switch) 1087 regmap_update_bits(cs35l36->regmap, CS35L36_NG_CFG, 1088 CS35L36_NG_DELAY_MASK, 1089 0 << CS35L36_NG_DELAY_SHIFT); 1090 1091 regmap_update_bits(cs35l36->regmap, CS35L36_DAC_MSM_CFG, 1092 CS35L36_PDM_MODE_MASK, 1093 1 << CS35L36_PDM_MODE_SHIFT); 1094 1095 if (pdm_switch) 1096 regmap_update_bits(cs35l36->regmap, CS35L36_NG_CFG, 1097 CS35L36_NG_DELAY_MASK, 1098 3 << CS35L36_NG_DELAY_SHIFT); 1099 } else { 1100 pdm_switch = cs35l36->ldm_mode_sel && 1101 (prev_clksrc == CS35L36_PLLSRC_PDMCLK); 1102 1103 if (pdm_switch) 1104 regmap_update_bits(cs35l36->regmap, CS35L36_NG_CFG, 1105 CS35L36_NG_DELAY_MASK, 1106 0 << CS35L36_NG_DELAY_SHIFT); 1107 1108 regmap_update_bits(cs35l36->regmap, CS35L36_DAC_MSM_CFG, 1109 CS35L36_PDM_MODE_MASK, 1110 0 << CS35L36_PDM_MODE_SHIFT); 1111 1112 if (pdm_switch) 1113 regmap_update_bits(cs35l36->regmap, CS35L36_NG_CFG, 1114 CS35L36_NG_DELAY_MASK, 1115 3 << CS35L36_NG_DELAY_SHIFT); 1116 } 1117 1118 return 0; 1119 } 1120 1121 static int cs35l36_boost_inductor(struct cs35l36_private *cs35l36, int inductor) 1122 { 1123 regmap_update_bits(cs35l36->regmap, CS35L36_BSTCVRT_COEFF, 1124 CS35L36_BSTCVRT_K1_MASK, 0x3C); 1125 regmap_update_bits(cs35l36->regmap, CS35L36_BSTCVRT_COEFF, 1126 CS35L36_BSTCVRT_K2_MASK, 1127 0x3C << CS35L36_BSTCVRT_K2_SHIFT); 1128 regmap_update_bits(cs35l36->regmap, CS35L36_BSTCVRT_SW_FREQ, 1129 CS35L36_BSTCVRT_CCMFREQ_MASK, 0x00); 1130 1131 switch (inductor) { 1132 case 1000: /* 1 uH */ 1133 regmap_update_bits(cs35l36->regmap, CS35L36_BSTCVRT_SLOPE_LBST, 1134 CS35L36_BSTCVRT_SLOPE_MASK, 1135 0x75 << CS35L36_BSTCVRT_SLOPE_SHIFT); 1136 regmap_update_bits(cs35l36->regmap, CS35L36_BSTCVRT_SLOPE_LBST, 1137 CS35L36_BSTCVRT_LBSTVAL_MASK, 0x00); 1138 break; 1139 case 1200: /* 1.2 uH */ 1140 regmap_update_bits(cs35l36->regmap, CS35L36_BSTCVRT_SLOPE_LBST, 1141 CS35L36_BSTCVRT_SLOPE_MASK, 1142 0x6B << CS35L36_BSTCVRT_SLOPE_SHIFT); 1143 regmap_update_bits(cs35l36->regmap, CS35L36_BSTCVRT_SLOPE_LBST, 1144 CS35L36_BSTCVRT_LBSTVAL_MASK, 0x01); 1145 break; 1146 default: 1147 dev_err(cs35l36->dev, "%s Invalid Inductor Value %d uH\n", 1148 __func__, inductor); 1149 return -EINVAL; 1150 } 1151 1152 return 0; 1153 } 1154 1155 static int cs35l36_component_probe(struct snd_soc_component *component) 1156 { 1157 struct cs35l36_private *cs35l36 = 1158 snd_soc_component_get_drvdata(component); 1159 int ret = 0; 1160 1161 if ((cs35l36->rev_id == CS35L36_REV_A0) && cs35l36->pdata.dcm_mode) { 1162 regmap_update_bits(cs35l36->regmap, CS35L36_BSTCVRT_DCM_CTRL, 1163 CS35L36_DCM_AUTO_MASK, 1164 CS35L36_DCM_AUTO_MASK); 1165 1166 regmap_write(cs35l36->regmap, CS35L36_TESTKEY_CTRL, 1167 CS35L36_TEST_UNLOCK1); 1168 regmap_write(cs35l36->regmap, CS35L36_TESTKEY_CTRL, 1169 CS35L36_TEST_UNLOCK2); 1170 1171 regmap_update_bits(cs35l36->regmap, CS35L36_BST_TST_MANUAL, 1172 CS35L36_BST_MAN_IPKCOMP_MASK, 1173 0 << CS35L36_BST_MAN_IPKCOMP_SHIFT); 1174 regmap_update_bits(cs35l36->regmap, CS35L36_BST_TST_MANUAL, 1175 CS35L36_BST_MAN_IPKCOMP_EN_MASK, 1176 CS35L36_BST_MAN_IPKCOMP_EN_MASK); 1177 1178 regmap_write(cs35l36->regmap, CS35L36_TESTKEY_CTRL, 1179 CS35L36_TEST_LOCK1); 1180 regmap_write(cs35l36->regmap, CS35L36_TESTKEY_CTRL, 1181 CS35L36_TEST_LOCK2); 1182 } 1183 1184 if (cs35l36->pdata.amp_pcm_inv) 1185 regmap_update_bits(cs35l36->regmap, CS35L36_AMP_DIG_VOL_CTRL, 1186 CS35L36_AMP_PCM_INV_MASK, 1187 CS35L36_AMP_PCM_INV_MASK); 1188 1189 if (cs35l36->pdata.multi_amp_mode) 1190 regmap_update_bits(cs35l36->regmap, CS35L36_ASP_TX_PIN_CTRL, 1191 CS35L36_ASP_TX_HIZ_MASK, 1192 CS35L36_ASP_TX_HIZ_MASK); 1193 1194 if (cs35l36->pdata.imon_pol_inv) 1195 regmap_update_bits(cs35l36->regmap, CS35L36_VI_SPKMON_FILT, 1196 CS35L36_IMON_POL_MASK, 0); 1197 1198 if (cs35l36->pdata.vmon_pol_inv) 1199 regmap_update_bits(cs35l36->regmap, CS35L36_VI_SPKMON_FILT, 1200 CS35L36_VMON_POL_MASK, 0); 1201 1202 if (cs35l36->pdata.bst_vctl) 1203 regmap_update_bits(cs35l36->regmap, CS35L36_BSTCVRT_VCTRL1, 1204 CS35L35_BSTCVRT_CTL_MASK, 1205 cs35l36->pdata.bst_vctl); 1206 1207 if (cs35l36->pdata.bst_vctl_sel) 1208 regmap_update_bits(cs35l36->regmap, CS35L36_BSTCVRT_VCTRL2, 1209 CS35L35_BSTCVRT_CTL_SEL_MASK, 1210 cs35l36->pdata.bst_vctl_sel); 1211 1212 if (cs35l36->pdata.bst_ipk) 1213 regmap_update_bits(cs35l36->regmap, CS35L36_BSTCVRT_PEAK_CUR, 1214 CS35L36_BST_IPK_MASK, 1215 cs35l36->pdata.bst_ipk); 1216 1217 if (cs35l36->pdata.boost_ind) { 1218 ret = cs35l36_boost_inductor(cs35l36, cs35l36->pdata.boost_ind); 1219 if (ret < 0) { 1220 dev_err(cs35l36->dev, 1221 "Boost inductor config failed(%d)\n", ret); 1222 return ret; 1223 } 1224 } 1225 1226 if (cs35l36->pdata.temp_warn_thld) 1227 regmap_update_bits(cs35l36->regmap, CS35L36_DTEMP_WARN_THLD, 1228 CS35L36_TEMP_THLD_MASK, 1229 cs35l36->pdata.temp_warn_thld); 1230 1231 if (cs35l36->pdata.irq_drv_sel) 1232 regmap_update_bits(cs35l36->regmap, CS35L36_PAD_INTERFACE, 1233 CS35L36_INT_DRV_SEL_MASK, 1234 cs35l36->pdata.irq_drv_sel << 1235 CS35L36_INT_DRV_SEL_SHIFT); 1236 1237 if (cs35l36->pdata.irq_gpio_sel) 1238 regmap_update_bits(cs35l36->regmap, CS35L36_PAD_INTERFACE, 1239 CS35L36_INT_GPIO_SEL_MASK, 1240 cs35l36->pdata.irq_gpio_sel << 1241 CS35L36_INT_GPIO_SEL_SHIFT); 1242 1243 /* 1244 * Rev B0 has 2 versions 1245 * L36 is 10V 1246 * L37 is 12V 1247 * If L36 we need to clamp some values for safety 1248 * after probe has setup dt values. We want to make 1249 * sure we dont miss any values set in probe 1250 */ 1251 if (cs35l36->chip_version == CS35L36_10V_L36) { 1252 regmap_update_bits(cs35l36->regmap, 1253 CS35L36_BSTCVRT_OVERVOLT_CTRL, 1254 CS35L36_BST_OVP_THLD_MASK, 1255 CS35L36_BST_OVP_THLD_11V); 1256 1257 regmap_write(cs35l36->regmap, CS35L36_TESTKEY_CTRL, 1258 CS35L36_TEST_UNLOCK1); 1259 regmap_write(cs35l36->regmap, CS35L36_TESTKEY_CTRL, 1260 CS35L36_TEST_UNLOCK2); 1261 1262 regmap_update_bits(cs35l36->regmap, CS35L36_BST_ANA2_TEST, 1263 CS35L36_BST_OVP_TRIM_MASK, 1264 CS35L36_BST_OVP_TRIM_11V << 1265 CS35L36_BST_OVP_TRIM_SHIFT); 1266 regmap_update_bits(cs35l36->regmap, CS35L36_BSTCVRT_VCTRL2, 1267 CS35L36_BST_CTRL_LIM_MASK, 1268 1 << CS35L36_BST_CTRL_LIM_SHIFT); 1269 regmap_update_bits(cs35l36->regmap, CS35L36_BSTCVRT_VCTRL1, 1270 CS35L35_BSTCVRT_CTL_MASK, 1271 CS35L36_BST_CTRL_10V_CLAMP); 1272 regmap_write(cs35l36->regmap, CS35L36_TESTKEY_CTRL, 1273 CS35L36_TEST_LOCK1); 1274 regmap_write(cs35l36->regmap, CS35L36_TESTKEY_CTRL, 1275 CS35L36_TEST_LOCK2); 1276 } 1277 1278 /* 1279 * RevA and B require the disabling of 1280 * SYNC_GLOBAL_OVR when GLOBAL_EN = 0. 1281 * Just turn it off from default 1282 */ 1283 regmap_update_bits(cs35l36->regmap, CS35L36_CTRL_OVRRIDE, 1284 CS35L36_SYNC_GLOBAL_OVR_MASK, 1285 0 << CS35L36_SYNC_GLOBAL_OVR_SHIFT); 1286 1287 return 0; 1288 } 1289 1290 static const struct snd_soc_component_driver soc_component_dev_cs35l36 = { 1291 .probe = &cs35l36_component_probe, 1292 .set_sysclk = cs35l36_component_set_sysclk, 1293 .dapm_widgets = cs35l36_dapm_widgets, 1294 .num_dapm_widgets = ARRAY_SIZE(cs35l36_dapm_widgets), 1295 .dapm_routes = cs35l36_audio_map, 1296 .num_dapm_routes = ARRAY_SIZE(cs35l36_audio_map), 1297 .controls = cs35l36_aud_controls, 1298 .num_controls = ARRAY_SIZE(cs35l36_aud_controls), 1299 .idle_bias_on = 1, 1300 .use_pmdown_time = 1, 1301 .endianness = 1, 1302 .non_legacy_dai_naming = 1, 1303 }; 1304 1305 static struct regmap_config cs35l36_regmap = { 1306 .reg_bits = 32, 1307 .val_bits = 32, 1308 .reg_stride = 4, 1309 .max_register = CS35L36_PAC_PMEM_WORD1023, 1310 .reg_defaults = cs35l36_reg, 1311 .num_reg_defaults = ARRAY_SIZE(cs35l36_reg), 1312 .precious_reg = cs35l36_precious_reg, 1313 .volatile_reg = cs35l36_volatile_reg, 1314 .readable_reg = cs35l36_readable_reg, 1315 .cache_type = REGCACHE_RBTREE, 1316 }; 1317 1318 static irqreturn_t cs35l36_irq(int irq, void *data) 1319 { 1320 struct cs35l36_private *cs35l36 = data; 1321 unsigned int status[4]; 1322 unsigned int masks[4]; 1323 int ret = IRQ_NONE; 1324 1325 /* ack the irq by reading all status registers */ 1326 regmap_bulk_read(cs35l36->regmap, CS35L36_INT1_STATUS, status, 1327 ARRAY_SIZE(status)); 1328 1329 regmap_bulk_read(cs35l36->regmap, CS35L36_INT1_MASK, masks, 1330 ARRAY_SIZE(masks)); 1331 1332 /* Check to see if unmasked bits are active */ 1333 if (!(status[0] & ~masks[0]) && !(status[1] & ~masks[1]) && 1334 !(status[2] & ~masks[2]) && !(status[3] & ~masks[3])) { 1335 return IRQ_NONE; 1336 } 1337 1338 /* 1339 * The following interrupts require a 1340 * protection release cycle to get the 1341 * speaker out of Safe-Mode. 1342 */ 1343 if (status[2] & CS35L36_AMP_SHORT_ERR) { 1344 dev_crit(cs35l36->dev, "Amp short error\n"); 1345 regmap_update_bits(cs35l36->regmap, CS35L36_PROTECT_REL_ERR, 1346 CS35L36_AMP_SHORT_ERR_RLS, 0); 1347 regmap_update_bits(cs35l36->regmap, CS35L36_PROTECT_REL_ERR, 1348 CS35L36_AMP_SHORT_ERR_RLS, 1349 CS35L36_AMP_SHORT_ERR_RLS); 1350 regmap_update_bits(cs35l36->regmap, CS35L36_PROTECT_REL_ERR, 1351 CS35L36_AMP_SHORT_ERR_RLS, 0); 1352 regmap_update_bits(cs35l36->regmap, CS35L36_INT3_STATUS, 1353 CS35L36_AMP_SHORT_ERR, 1354 CS35L36_AMP_SHORT_ERR); 1355 ret = IRQ_HANDLED; 1356 } 1357 1358 if (status[0] & CS35L36_TEMP_WARN) { 1359 dev_crit(cs35l36->dev, "Over temperature warning\n"); 1360 regmap_update_bits(cs35l36->regmap, CS35L36_PROTECT_REL_ERR, 1361 CS35L36_TEMP_WARN_ERR_RLS, 0); 1362 regmap_update_bits(cs35l36->regmap, CS35L36_PROTECT_REL_ERR, 1363 CS35L36_TEMP_WARN_ERR_RLS, 1364 CS35L36_TEMP_WARN_ERR_RLS); 1365 regmap_update_bits(cs35l36->regmap, CS35L36_PROTECT_REL_ERR, 1366 CS35L36_TEMP_WARN_ERR_RLS, 0); 1367 regmap_update_bits(cs35l36->regmap, CS35L36_INT1_STATUS, 1368 CS35L36_TEMP_WARN, CS35L36_TEMP_WARN); 1369 ret = IRQ_HANDLED; 1370 } 1371 1372 if (status[0] & CS35L36_TEMP_ERR) { 1373 dev_crit(cs35l36->dev, "Over temperature error\n"); 1374 regmap_update_bits(cs35l36->regmap, CS35L36_PROTECT_REL_ERR, 1375 CS35L36_TEMP_ERR_RLS, 0); 1376 regmap_update_bits(cs35l36->regmap, CS35L36_PROTECT_REL_ERR, 1377 CS35L36_TEMP_ERR_RLS, CS35L36_TEMP_ERR_RLS); 1378 regmap_update_bits(cs35l36->regmap, CS35L36_PROTECT_REL_ERR, 1379 CS35L36_TEMP_ERR_RLS, 0); 1380 regmap_update_bits(cs35l36->regmap, CS35L36_INT1_STATUS, 1381 CS35L36_TEMP_ERR, CS35L36_TEMP_ERR); 1382 ret = IRQ_HANDLED; 1383 } 1384 1385 if (status[0] & CS35L36_BST_OVP_ERR) { 1386 dev_crit(cs35l36->dev, "VBST Over Voltage error\n"); 1387 regmap_update_bits(cs35l36->regmap, CS35L36_PROTECT_REL_ERR, 1388 CS35L36_TEMP_ERR_RLS, 0); 1389 regmap_update_bits(cs35l36->regmap, CS35L36_PROTECT_REL_ERR, 1390 CS35L36_TEMP_ERR_RLS, CS35L36_TEMP_ERR_RLS); 1391 regmap_update_bits(cs35l36->regmap, CS35L36_PROTECT_REL_ERR, 1392 CS35L36_TEMP_ERR_RLS, 0); 1393 regmap_update_bits(cs35l36->regmap, CS35L36_INT1_STATUS, 1394 CS35L36_BST_OVP_ERR, CS35L36_BST_OVP_ERR); 1395 ret = IRQ_HANDLED; 1396 } 1397 1398 if (status[0] & CS35L36_BST_DCM_UVP_ERR) { 1399 dev_crit(cs35l36->dev, "DCM VBST Under Voltage Error\n"); 1400 regmap_update_bits(cs35l36->regmap, CS35L36_PROTECT_REL_ERR, 1401 CS35L36_BST_UVP_ERR_RLS, 0); 1402 regmap_update_bits(cs35l36->regmap, CS35L36_PROTECT_REL_ERR, 1403 CS35L36_BST_UVP_ERR_RLS, 1404 CS35L36_BST_UVP_ERR_RLS); 1405 regmap_update_bits(cs35l36->regmap, CS35L36_PROTECT_REL_ERR, 1406 CS35L36_BST_UVP_ERR_RLS, 0); 1407 regmap_update_bits(cs35l36->regmap, CS35L36_INT1_STATUS, 1408 CS35L36_BST_DCM_UVP_ERR, 1409 CS35L36_BST_DCM_UVP_ERR); 1410 ret = IRQ_HANDLED; 1411 } 1412 1413 if (status[0] & CS35L36_BST_SHORT_ERR) { 1414 dev_crit(cs35l36->dev, "LBST SHORT error!\n"); 1415 regmap_update_bits(cs35l36->regmap, CS35L36_PROTECT_REL_ERR, 1416 CS35L36_BST_SHORT_ERR_RLS, 0); 1417 regmap_update_bits(cs35l36->regmap, CS35L36_PROTECT_REL_ERR, 1418 CS35L36_BST_SHORT_ERR_RLS, 1419 CS35L36_BST_SHORT_ERR_RLS); 1420 regmap_update_bits(cs35l36->regmap, CS35L36_PROTECT_REL_ERR, 1421 CS35L36_BST_SHORT_ERR_RLS, 0); 1422 regmap_update_bits(cs35l36->regmap, CS35L36_INT1_STATUS, 1423 CS35L36_BST_SHORT_ERR, 1424 CS35L36_BST_SHORT_ERR); 1425 ret = IRQ_HANDLED; 1426 } 1427 1428 return ret; 1429 } 1430 1431 static int cs35l36_handle_of_data(struct i2c_client *i2c_client, 1432 struct cs35l36_platform_data *pdata) 1433 { 1434 struct device_node *np = i2c_client->dev.of_node; 1435 struct cs35l36_vpbr_cfg *vpbr_config = &pdata->vpbr_config; 1436 struct device_node *vpbr_node; 1437 unsigned int val; 1438 int ret; 1439 1440 if (!np) 1441 return 0; 1442 1443 ret = of_property_read_u32(np, "cirrus,boost-ctl-millivolt", &val); 1444 if (!ret) { 1445 if (val < 2550 || val > 12000) { 1446 dev_err(&i2c_client->dev, 1447 "Invalid Boost Voltage %d mV\n", val); 1448 return -EINVAL; 1449 } 1450 pdata->bst_vctl = (((val - 2550) / 100) + 1) << 1; 1451 } else { 1452 dev_err(&i2c_client->dev, 1453 "Unable to find required parameter 'cirrus,boost-ctl-millivolt'"); 1454 return -EINVAL; 1455 } 1456 1457 ret = of_property_read_u32(np, "cirrus,boost-ctl-select", &val); 1458 if (!ret) 1459 pdata->bst_vctl_sel = val | CS35L36_VALID_PDATA; 1460 1461 ret = of_property_read_u32(np, "cirrus,boost-peak-milliamp", &val); 1462 if (!ret) { 1463 if (val < 1600 || val > 4500) { 1464 dev_err(&i2c_client->dev, 1465 "Invalid Boost Peak Current %u mA\n", val); 1466 return -EINVAL; 1467 } 1468 1469 pdata->bst_ipk = (val - 1600) / 50; 1470 } else { 1471 dev_err(&i2c_client->dev, 1472 "Unable to find required parameter 'cirrus,boost-peak-milliamp'"); 1473 return -EINVAL; 1474 } 1475 1476 pdata->multi_amp_mode = of_property_read_bool(np, 1477 "cirrus,multi-amp-mode"); 1478 1479 pdata->dcm_mode = of_property_read_bool(np, 1480 "cirrus,dcm-mode-enable"); 1481 1482 pdata->amp_pcm_inv = of_property_read_bool(np, 1483 "cirrus,amp-pcm-inv"); 1484 1485 pdata->imon_pol_inv = of_property_read_bool(np, 1486 "cirrus,imon-pol-inv"); 1487 1488 pdata->vmon_pol_inv = of_property_read_bool(np, 1489 "cirrus,vmon-pol-inv"); 1490 1491 if (of_property_read_u32(np, "cirrus,temp-warn-threshold", &val) >= 0) 1492 pdata->temp_warn_thld = val | CS35L36_VALID_PDATA; 1493 1494 if (of_property_read_u32(np, "cirrus,boost-ind-nanohenry", &val) >= 0) { 1495 pdata->boost_ind = val; 1496 } else { 1497 dev_err(&i2c_client->dev, "Inductor not specified.\n"); 1498 return -EINVAL; 1499 } 1500 1501 if (of_property_read_u32(np, "cirrus,irq-drive-select", &val) >= 0) 1502 pdata->irq_drv_sel = val | CS35L36_VALID_PDATA; 1503 1504 if (of_property_read_u32(np, "cirrus,irq-gpio-select", &val) >= 0) 1505 pdata->irq_gpio_sel = val | CS35L36_VALID_PDATA; 1506 1507 /* VPBR Config */ 1508 vpbr_node = of_get_child_by_name(np, "cirrus,vpbr-config"); 1509 vpbr_config->is_present = vpbr_node ? true : false; 1510 if (vpbr_config->is_present) { 1511 if (of_property_read_u32(vpbr_node, "cirrus,vpbr-en", 1512 &val) >= 0) 1513 vpbr_config->vpbr_en = val; 1514 if (of_property_read_u32(vpbr_node, "cirrus,vpbr-thld", 1515 &val) >= 0) 1516 vpbr_config->vpbr_thld = val; 1517 if (of_property_read_u32(vpbr_node, "cirrus,vpbr-atk-rate", 1518 &val) >= 0) 1519 vpbr_config->vpbr_atk_rate = val; 1520 if (of_property_read_u32(vpbr_node, "cirrus,vpbr-atk-vol", 1521 &val) >= 0) 1522 vpbr_config->vpbr_atk_vol = val; 1523 if (of_property_read_u32(vpbr_node, "cirrus,vpbr-max-attn", 1524 &val) >= 0) 1525 vpbr_config->vpbr_max_attn = val; 1526 if (of_property_read_u32(vpbr_node, "cirrus,vpbr-wait", 1527 &val) >= 0) 1528 vpbr_config->vpbr_wait = val; 1529 if (of_property_read_u32(vpbr_node, "cirrus,vpbr-rel-rate", 1530 &val) >= 0) 1531 vpbr_config->vpbr_rel_rate = val; 1532 if (of_property_read_u32(vpbr_node, "cirrus,vpbr-mute-en", 1533 &val) >= 0) 1534 vpbr_config->vpbr_mute_en = val; 1535 } 1536 of_node_put(vpbr_node); 1537 1538 return 0; 1539 } 1540 1541 static int cs35l36_pac(struct cs35l36_private *cs35l36) 1542 { 1543 int ret, count; 1544 unsigned int val; 1545 1546 if (cs35l36->rev_id != CS35L36_REV_B0) 1547 return 0; 1548 1549 /* 1550 * Magic code for internal PAC 1551 */ 1552 regmap_write(cs35l36->regmap, CS35L36_TESTKEY_CTRL, 1553 CS35L36_TEST_UNLOCK1); 1554 regmap_write(cs35l36->regmap, CS35L36_TESTKEY_CTRL, 1555 CS35L36_TEST_UNLOCK2); 1556 1557 usleep_range(9500, 10500); 1558 1559 regmap_write(cs35l36->regmap, CS35L36_PAC_CTL1, 1560 CS35L36_PAC_RESET); 1561 regmap_write(cs35l36->regmap, CS35L36_PAC_CTL3, 1562 CS35L36_PAC_MEM_ACCESS); 1563 regmap_write(cs35l36->regmap, CS35L36_PAC_PMEM_WORD0, 1564 CS35L36_B0_PAC_PATCH); 1565 1566 regmap_write(cs35l36->regmap, CS35L36_PAC_CTL3, 1567 CS35L36_PAC_MEM_ACCESS_CLR); 1568 regmap_write(cs35l36->regmap, CS35L36_PAC_CTL1, 1569 CS35L36_PAC_ENABLE_MASK); 1570 1571 usleep_range(9500, 10500); 1572 1573 ret = regmap_read(cs35l36->regmap, CS35L36_INT4_STATUS, &val); 1574 if (ret < 0) { 1575 dev_err(cs35l36->dev, "Failed to read int4_status %d\n", ret); 1576 return ret; 1577 } 1578 1579 count = 0; 1580 while (!(val & CS35L36_MCU_CONFIG_CLR)) { 1581 usleep_range(100, 200); 1582 count++; 1583 1584 ret = regmap_read(cs35l36->regmap, CS35L36_INT4_STATUS, 1585 &val); 1586 if (ret < 0) { 1587 dev_err(cs35l36->dev, "Failed to read int4_status %d\n", 1588 ret); 1589 return ret; 1590 } 1591 1592 if (count >= 100) 1593 return -EINVAL; 1594 } 1595 1596 regmap_write(cs35l36->regmap, CS35L36_INT4_STATUS, 1597 CS35L36_MCU_CONFIG_CLR); 1598 regmap_update_bits(cs35l36->regmap, CS35L36_PAC_CTL1, 1599 CS35L36_PAC_ENABLE_MASK, 0); 1600 1601 regmap_write(cs35l36->regmap, CS35L36_TESTKEY_CTRL, 1602 CS35L36_TEST_LOCK1); 1603 regmap_write(cs35l36->regmap, CS35L36_TESTKEY_CTRL, 1604 CS35L36_TEST_LOCK2); 1605 1606 return 0; 1607 } 1608 1609 static void cs35l36_apply_vpbr_config(struct cs35l36_private *cs35l36) 1610 { 1611 struct cs35l36_platform_data *pdata = &cs35l36->pdata; 1612 struct cs35l36_vpbr_cfg *vpbr_config = &pdata->vpbr_config; 1613 1614 regmap_update_bits(cs35l36->regmap, CS35L36_PWR_CTRL3, 1615 CS35L36_VPBR_EN_MASK, 1616 vpbr_config->vpbr_en << 1617 CS35L36_VPBR_EN_SHIFT); 1618 regmap_update_bits(cs35l36->regmap, CS35L36_VPBR_CFG, 1619 CS35L36_VPBR_THLD_MASK, 1620 vpbr_config->vpbr_thld << 1621 CS35L36_VPBR_THLD_SHIFT); 1622 regmap_update_bits(cs35l36->regmap, CS35L36_VPBR_CFG, 1623 CS35L36_VPBR_MAX_ATTN_MASK, 1624 vpbr_config->vpbr_max_attn << 1625 CS35L36_VPBR_MAX_ATTN_SHIFT); 1626 regmap_update_bits(cs35l36->regmap, CS35L36_VPBR_CFG, 1627 CS35L36_VPBR_ATK_VOL_MASK, 1628 vpbr_config->vpbr_atk_vol << 1629 CS35L36_VPBR_ATK_VOL_SHIFT); 1630 regmap_update_bits(cs35l36->regmap, CS35L36_VPBR_CFG, 1631 CS35L36_VPBR_ATK_RATE_MASK, 1632 vpbr_config->vpbr_atk_rate << 1633 CS35L36_VPBR_ATK_RATE_SHIFT); 1634 regmap_update_bits(cs35l36->regmap, CS35L36_VPBR_CFG, 1635 CS35L36_VPBR_WAIT_MASK, 1636 vpbr_config->vpbr_wait << 1637 CS35L36_VPBR_WAIT_SHIFT); 1638 regmap_update_bits(cs35l36->regmap, CS35L36_VPBR_CFG, 1639 CS35L36_VPBR_REL_RATE_MASK, 1640 vpbr_config->vpbr_rel_rate << 1641 CS35L36_VPBR_REL_RATE_SHIFT); 1642 regmap_update_bits(cs35l36->regmap, CS35L36_VPBR_CFG, 1643 CS35L36_VPBR_MUTE_EN_MASK, 1644 vpbr_config->vpbr_mute_en << 1645 CS35L36_VPBR_MUTE_EN_SHIFT); 1646 } 1647 1648 static const struct reg_sequence cs35l36_reva0_errata_patch[] = { 1649 { CS35L36_TESTKEY_CTRL, CS35L36_TEST_UNLOCK1 }, 1650 { CS35L36_TESTKEY_CTRL, CS35L36_TEST_UNLOCK2 }, 1651 /* Errata Writes */ 1652 { CS35L36_OTP_CTRL1, 0x00002060 }, 1653 { CS35L36_OTP_CTRL2, 0x00000001 }, 1654 { CS35L36_OTP_CTRL1, 0x00002460 }, 1655 { CS35L36_OTP_CTRL2, 0x00000001 }, 1656 { 0x00002088, 0x012A1838 }, 1657 { 0x00003014, 0x0100EE0E }, 1658 { 0x00003008, 0x0008184A }, 1659 { 0x00007418, 0x509001C8 }, 1660 { 0x00007064, 0x0929A800 }, 1661 { 0x00002D10, 0x0002C01C }, 1662 { 0x0000410C, 0x00000A11 }, 1663 { 0x00006E08, 0x8B19140C }, 1664 { 0x00006454, 0x0300000A }, 1665 { CS35L36_AMP_NG_CTRL, 0x000020EF }, 1666 { 0x00007E34, 0x0000000E }, 1667 { 0x0000410C, 0x00000A11 }, 1668 { 0x00007410, 0x20514B00 }, 1669 /* PAC Config */ 1670 { CS35L36_CTRL_OVRRIDE, 0x00000000 }, 1671 { CS35L36_PAC_INT0_CTRL, 0x00860001 }, 1672 { CS35L36_PAC_INT1_CTRL, 0x00860001 }, 1673 { CS35L36_PAC_INT2_CTRL, 0x00860001 }, 1674 { CS35L36_PAC_INT3_CTRL, 0x00860001 }, 1675 { CS35L36_PAC_INT4_CTRL, 0x00860001 }, 1676 { CS35L36_PAC_INT5_CTRL, 0x00860001 }, 1677 { CS35L36_PAC_INT6_CTRL, 0x00860001 }, 1678 { CS35L36_PAC_INT7_CTRL, 0x00860001 }, 1679 { CS35L36_PAC_INT_FLUSH_CTRL, 0x000000FF }, 1680 { CS35L36_TESTKEY_CTRL, CS35L36_TEST_LOCK1 }, 1681 { CS35L36_TESTKEY_CTRL, CS35L36_TEST_LOCK2 }, 1682 }; 1683 1684 static const struct reg_sequence cs35l36_revb0_errata_patch[] = { 1685 { CS35L36_TESTKEY_CTRL, CS35L36_TEST_UNLOCK1 }, 1686 { CS35L36_TESTKEY_CTRL, CS35L36_TEST_UNLOCK2 }, 1687 { 0x00007064, 0x0929A800 }, 1688 { 0x00007850, 0x00002FA9 }, 1689 { 0x00007854, 0x0003F1D5 }, 1690 { 0x00007858, 0x0003F5E3 }, 1691 { 0x0000785C, 0x00001137 }, 1692 { 0x00007860, 0x0001A7A5 }, 1693 { 0x00007864, 0x0002F16A }, 1694 { 0x00007868, 0x00003E21 }, 1695 { 0x00007848, 0x00000001 }, 1696 { 0x00003854, 0x05180240 }, 1697 { 0x00007418, 0x509001C8 }, 1698 { 0x0000394C, 0x028764BD }, 1699 { CS35L36_TESTKEY_CTRL, CS35L36_TEST_LOCK1 }, 1700 { CS35L36_TESTKEY_CTRL, CS35L36_TEST_LOCK2 }, 1701 }; 1702 1703 static int cs35l36_i2c_probe(struct i2c_client *i2c_client, 1704 const struct i2c_device_id *id) 1705 { 1706 struct cs35l36_private *cs35l36; 1707 struct device *dev = &i2c_client->dev; 1708 struct cs35l36_platform_data *pdata = dev_get_platdata(dev); 1709 struct irq_data *irq_d; 1710 int ret, irq_pol, chip_irq_pol, i; 1711 u32 reg_id, reg_revid, l37_id_reg; 1712 1713 cs35l36 = devm_kzalloc(dev, sizeof(struct cs35l36_private), GFP_KERNEL); 1714 if (!cs35l36) 1715 return -ENOMEM; 1716 1717 cs35l36->dev = dev; 1718 1719 i2c_set_clientdata(i2c_client, cs35l36); 1720 cs35l36->regmap = devm_regmap_init_i2c(i2c_client, &cs35l36_regmap); 1721 if (IS_ERR(cs35l36->regmap)) { 1722 ret = PTR_ERR(cs35l36->regmap); 1723 dev_err(dev, "regmap_init() failed: %d\n", ret); 1724 goto err; 1725 } 1726 1727 cs35l36->num_supplies = ARRAY_SIZE(cs35l36_supplies); 1728 for (i = 0; i < ARRAY_SIZE(cs35l36_supplies); i++) 1729 cs35l36->supplies[i].supply = cs35l36_supplies[i]; 1730 1731 ret = devm_regulator_bulk_get(dev, cs35l36->num_supplies, 1732 cs35l36->supplies); 1733 if (ret != 0) { 1734 dev_err(dev, "Failed to request core supplies: %d\n", ret); 1735 return ret; 1736 } 1737 1738 if (pdata) { 1739 cs35l36->pdata = *pdata; 1740 } else { 1741 pdata = devm_kzalloc(dev, sizeof(struct cs35l36_platform_data), 1742 GFP_KERNEL); 1743 if (!pdata) 1744 return -ENOMEM; 1745 1746 if (i2c_client->dev.of_node) { 1747 ret = cs35l36_handle_of_data(i2c_client, pdata); 1748 if (ret != 0) 1749 return ret; 1750 1751 } 1752 1753 cs35l36->pdata = *pdata; 1754 } 1755 1756 ret = regulator_bulk_enable(cs35l36->num_supplies, cs35l36->supplies); 1757 if (ret != 0) { 1758 dev_err(dev, "Failed to enable core supplies: %d\n", ret); 1759 return ret; 1760 } 1761 1762 /* returning NULL can be an option if in stereo mode */ 1763 cs35l36->reset_gpio = devm_gpiod_get_optional(dev, "reset", 1764 GPIOD_OUT_LOW); 1765 if (IS_ERR(cs35l36->reset_gpio)) { 1766 ret = PTR_ERR(cs35l36->reset_gpio); 1767 cs35l36->reset_gpio = NULL; 1768 if (ret == -EBUSY) { 1769 dev_info(dev, "Reset line busy, assuming shared reset\n"); 1770 } else { 1771 dev_err(dev, "Failed to get reset GPIO: %d\n", ret); 1772 goto err_disable_regs; 1773 } 1774 } 1775 1776 if (cs35l36->reset_gpio) 1777 gpiod_set_value_cansleep(cs35l36->reset_gpio, 1); 1778 1779 usleep_range(2000, 2100); 1780 1781 /* initialize amplifier */ 1782 ret = regmap_read(cs35l36->regmap, CS35L36_SW_RESET, ®_id); 1783 if (ret < 0) { 1784 dev_err(dev, "Get Device ID failed %d\n", ret); 1785 goto err; 1786 } 1787 1788 if (reg_id != CS35L36_CHIP_ID) { 1789 dev_err(dev, "Device ID (%X). Expected ID %X\n", reg_id, 1790 CS35L36_CHIP_ID); 1791 ret = -ENODEV; 1792 goto err; 1793 } 1794 1795 ret = regmap_read(cs35l36->regmap, CS35L36_REV_ID, ®_revid); 1796 if (ret < 0) { 1797 dev_err(&i2c_client->dev, "Get Revision ID failed %d\n", ret); 1798 goto err; 1799 } 1800 1801 cs35l36->rev_id = reg_revid >> 8; 1802 1803 ret = regmap_read(cs35l36->regmap, CS35L36_OTP_MEM30, &l37_id_reg); 1804 if (ret < 0) { 1805 dev_err(&i2c_client->dev, "Failed to read otp_id Register %d\n", 1806 ret); 1807 return ret; 1808 } 1809 1810 if ((l37_id_reg & CS35L36_OTP_REV_MASK) == CS35L36_OTP_REV_L37) 1811 cs35l36->chip_version = CS35L36_12V_L37; 1812 else 1813 cs35l36->chip_version = CS35L36_10V_L36; 1814 1815 switch (cs35l36->rev_id) { 1816 case CS35L36_REV_A0: 1817 ret = regmap_register_patch(cs35l36->regmap, 1818 cs35l36_reva0_errata_patch, 1819 ARRAY_SIZE(cs35l36_reva0_errata_patch)); 1820 if (ret < 0) { 1821 dev_err(dev, "Failed to apply A0 errata patch %d\n", 1822 ret); 1823 goto err; 1824 } 1825 break; 1826 case CS35L36_REV_B0: 1827 ret = cs35l36_pac(cs35l36); 1828 if (ret < 0) { 1829 dev_err(dev, "Failed to Trim OTP %d\n", ret); 1830 goto err; 1831 } 1832 1833 ret = regmap_register_patch(cs35l36->regmap, 1834 cs35l36_revb0_errata_patch, 1835 ARRAY_SIZE(cs35l36_revb0_errata_patch)); 1836 if (ret < 0) { 1837 dev_err(dev, "Failed to apply B0 errata patch %d\n", 1838 ret); 1839 goto err; 1840 } 1841 break; 1842 } 1843 1844 if (pdata->vpbr_config.is_present) 1845 cs35l36_apply_vpbr_config(cs35l36); 1846 1847 irq_d = irq_get_irq_data(i2c_client->irq); 1848 if (!irq_d) { 1849 dev_err(&i2c_client->dev, "Invalid IRQ: %d\n", i2c_client->irq); 1850 ret = -ENODEV; 1851 goto err; 1852 } 1853 1854 irq_pol = irqd_get_trigger_type(irq_d); 1855 1856 switch (irq_pol) { 1857 case IRQF_TRIGGER_FALLING: 1858 case IRQF_TRIGGER_LOW: 1859 chip_irq_pol = 0; 1860 break; 1861 case IRQF_TRIGGER_RISING: 1862 case IRQF_TRIGGER_HIGH: 1863 chip_irq_pol = 1; 1864 break; 1865 default: 1866 dev_err(cs35l36->dev, "Invalid IRQ polarity: %d\n", irq_pol); 1867 ret = -EINVAL; 1868 goto err; 1869 } 1870 1871 regmap_update_bits(cs35l36->regmap, CS35L36_PAD_INTERFACE, 1872 CS35L36_INT_POL_SEL_MASK, 1873 chip_irq_pol << CS35L36_INT_POL_SEL_SHIFT); 1874 1875 ret = devm_request_threaded_irq(dev, i2c_client->irq, NULL, cs35l36_irq, 1876 IRQF_ONESHOT | irq_pol, "cs35l36", 1877 cs35l36); 1878 if (ret != 0) { 1879 dev_err(dev, "Failed to request IRQ: %d\n", ret); 1880 goto err; 1881 } 1882 1883 regmap_update_bits(cs35l36->regmap, CS35L36_PAD_INTERFACE, 1884 CS35L36_INT_OUTPUT_EN_MASK, 1); 1885 1886 /* Set interrupt masks for critical errors */ 1887 regmap_write(cs35l36->regmap, CS35L36_INT1_MASK, 1888 CS35L36_INT1_MASK_DEFAULT); 1889 regmap_write(cs35l36->regmap, CS35L36_INT3_MASK, 1890 CS35L36_INT3_MASK_DEFAULT); 1891 1892 dev_info(&i2c_client->dev, "Cirrus Logic CS35L%d, Revision: %02X\n", 1893 cs35l36->chip_version, reg_revid >> 8); 1894 1895 ret = devm_snd_soc_register_component(dev, &soc_component_dev_cs35l36, 1896 cs35l36_dai, 1897 ARRAY_SIZE(cs35l36_dai)); 1898 if (ret < 0) { 1899 dev_err(dev, "%s: Register component failed %d\n", __func__, 1900 ret); 1901 goto err; 1902 } 1903 1904 return 0; 1905 1906 err: 1907 gpiod_set_value_cansleep(cs35l36->reset_gpio, 0); 1908 1909 err_disable_regs: 1910 regulator_bulk_disable(cs35l36->num_supplies, cs35l36->supplies); 1911 return ret; 1912 } 1913 1914 static int cs35l36_i2c_remove(struct i2c_client *client) 1915 { 1916 struct cs35l36_private *cs35l36 = i2c_get_clientdata(client); 1917 1918 /* Reset interrupt masks for device removal */ 1919 regmap_write(cs35l36->regmap, CS35L36_INT1_MASK, 1920 CS35L36_INT1_MASK_RESET); 1921 regmap_write(cs35l36->regmap, CS35L36_INT3_MASK, 1922 CS35L36_INT3_MASK_RESET); 1923 1924 if (cs35l36->reset_gpio) 1925 gpiod_set_value_cansleep(cs35l36->reset_gpio, 0); 1926 1927 regulator_bulk_disable(cs35l36->num_supplies, cs35l36->supplies); 1928 1929 return 0; 1930 } 1931 static const struct of_device_id cs35l36_of_match[] = { 1932 {.compatible = "cirrus,cs35l36"}, 1933 {}, 1934 }; 1935 MODULE_DEVICE_TABLE(of, cs35l36_of_match); 1936 1937 static const struct i2c_device_id cs35l36_id[] = { 1938 {"cs35l36", 0}, 1939 {} 1940 }; 1941 1942 MODULE_DEVICE_TABLE(i2c, cs35l36_id); 1943 1944 static struct i2c_driver cs35l36_i2c_driver = { 1945 .driver = { 1946 .name = "cs35l36", 1947 .of_match_table = cs35l36_of_match, 1948 }, 1949 .id_table = cs35l36_id, 1950 .probe = cs35l36_i2c_probe, 1951 .remove = cs35l36_i2c_remove, 1952 }; 1953 module_i2c_driver(cs35l36_i2c_driver); 1954 1955 MODULE_DESCRIPTION("ASoC CS35L36 driver"); 1956 MODULE_AUTHOR("James Schulman, Cirrus Logic Inc, <james.schulman@cirrus.com>"); 1957 MODULE_LICENSE("GPL"); 1958