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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 | // SPDX-License-Identifier: GPL-2.0 // // Regulator Driver for Freescale MC13783 PMIC // // Copyright 2010 Yong Shen <yong.shen@linaro.org> // Copyright (C) 2008 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de> // Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com> #include <linux/mfd/mc13783.h> #include <linux/regulator/machine.h> #include <linux/regulator/driver.h> #include <linux/platform_device.h> #include <linux/kernel.h> #include <linux/slab.h> #include <linux/init.h> #include <linux/err.h> #include <linux/module.h> #include "mc13xxx.h" #define MC13783_REG_SWITCHERS0 24 /* Enable does not exist for SW1A */ #define MC13783_REG_SWITCHERS0_SW1AEN 0 #define MC13783_REG_SWITCHERS0_SW1AVSEL 0 #define MC13783_REG_SWITCHERS0_SW1AVSEL_M (63 << 0) #define MC13783_REG_SWITCHERS1 25 /* Enable does not exist for SW1B */ #define MC13783_REG_SWITCHERS1_SW1BEN 0 #define MC13783_REG_SWITCHERS1_SW1BVSEL 0 #define MC13783_REG_SWITCHERS1_SW1BVSEL_M (63 << 0) #define MC13783_REG_SWITCHERS2 26 /* Enable does not exist for SW2A */ #define MC13783_REG_SWITCHERS2_SW2AEN 0 #define MC13783_REG_SWITCHERS2_SW2AVSEL 0 #define MC13783_REG_SWITCHERS2_SW2AVSEL_M (63 << 0) #define MC13783_REG_SWITCHERS3 27 /* Enable does not exist for SW2B */ #define MC13783_REG_SWITCHERS3_SW2BEN 0 #define MC13783_REG_SWITCHERS3_SW2BVSEL 0 #define MC13783_REG_SWITCHERS3_SW2BVSEL_M (63 << 0) #define MC13783_REG_SWITCHERS5 29 #define MC13783_REG_SWITCHERS5_SW3EN (1 << 20) #define MC13783_REG_SWITCHERS5_SW3VSEL 18 #define MC13783_REG_SWITCHERS5_SW3VSEL_M (3 << 18) #define MC13783_REG_REGULATORSETTING0 30 #define MC13783_REG_REGULATORSETTING0_VIOLOVSEL 2 #define MC13783_REG_REGULATORSETTING0_VDIGVSEL 4 #define MC13783_REG_REGULATORSETTING0_VGENVSEL 6 #define MC13783_REG_REGULATORSETTING0_VRFDIGVSEL 9 #define MC13783_REG_REGULATORSETTING0_VRFREFVSEL 11 #define MC13783_REG_REGULATORSETTING0_VRFCPVSEL 13 #define MC13783_REG_REGULATORSETTING0_VSIMVSEL 14 #define MC13783_REG_REGULATORSETTING0_VESIMVSEL 15 #define MC13783_REG_REGULATORSETTING0_VCAMVSEL 16 #define MC13783_REG_REGULATORSETTING0_VIOLOVSEL_M (3 << 2) #define MC13783_REG_REGULATORSETTING0_VDIGVSEL_M (3 << 4) #define MC13783_REG_REGULATORSETTING0_VGENVSEL_M (7 << 6) #define MC13783_REG_REGULATORSETTING0_VRFDIGVSEL_M (3 << 9) #define MC13783_REG_REGULATORSETTING0_VRFREFVSEL_M (3 << 11) #define MC13783_REG_REGULATORSETTING0_VRFCPVSEL_M (1 << 13) #define MC13783_REG_REGULATORSETTING0_VSIMVSEL_M (1 << 14) #define MC13783_REG_REGULATORSETTING0_VESIMVSEL_M (1 << 15) #define MC13783_REG_REGULATORSETTING0_VCAMVSEL_M (7 << 16) #define MC13783_REG_REGULATORSETTING1 31 #define MC13783_REG_REGULATORSETTING1_VVIBVSEL 0 #define MC13783_REG_REGULATORSETTING1_VRF1VSEL 2 #define MC13783_REG_REGULATORSETTING1_VRF2VSEL 4 #define MC13783_REG_REGULATORSETTING1_VMMC1VSEL 6 #define MC13783_REG_REGULATORSETTING1_VMMC2VSEL 9 #define MC13783_REG_REGULATORSETTING1_VVIBVSEL_M (3 << 0) #define MC13783_REG_REGULATORSETTING1_VRF1VSEL_M (3 << 2) #define MC13783_REG_REGULATORSETTING1_VRF2VSEL_M (3 << 4) #define MC13783_REG_REGULATORSETTING1_VMMC1VSEL_M (7 << 6) #define MC13783_REG_REGULATORSETTING1_VMMC2VSEL_M (7 << 9) #define MC13783_REG_REGULATORMODE0 32 #define MC13783_REG_REGULATORMODE0_VAUDIOEN (1 << 0) #define MC13783_REG_REGULATORMODE0_VIOHIEN (1 << 3) #define MC13783_REG_REGULATORMODE0_VIOLOEN (1 << 6) #define MC13783_REG_REGULATORMODE0_VDIGEN (1 << 9) #define MC13783_REG_REGULATORMODE0_VGENEN (1 << 12) #define MC13783_REG_REGULATORMODE0_VRFDIGEN (1 << 15) #define MC13783_REG_REGULATORMODE0_VRFREFEN (1 << 18) #define MC13783_REG_REGULATORMODE0_VRFCPEN (1 << 21) #define MC13783_REG_REGULATORMODE1 33 #define MC13783_REG_REGULATORMODE1_VSIMEN (1 << 0) #define MC13783_REG_REGULATORMODE1_VESIMEN (1 << 3) #define MC13783_REG_REGULATORMODE1_VCAMEN (1 << 6) #define MC13783_REG_REGULATORMODE1_VRFBGEN (1 << 9) #define MC13783_REG_REGULATORMODE1_VVIBEN (1 << 11) #define MC13783_REG_REGULATORMODE1_VRF1EN (1 << 12) #define MC13783_REG_REGULATORMODE1_VRF2EN (1 << 15) #define MC13783_REG_REGULATORMODE1_VMMC1EN (1 << 18) #define MC13783_REG_REGULATORMODE1_VMMC2EN (1 << 21) #define MC13783_REG_POWERMISC 34 #define MC13783_REG_POWERMISC_GPO1EN (1 << 6) #define MC13783_REG_POWERMISC_GPO2EN (1 << 8) #define MC13783_REG_POWERMISC_GPO3EN (1 << 10) #define MC13783_REG_POWERMISC_GPO4EN (1 << 12) #define MC13783_REG_POWERMISC_PWGT1SPIEN (1 << 15) #define MC13783_REG_POWERMISC_PWGT2SPIEN (1 << 16) #define MC13783_REG_POWERMISC_PWGTSPI_M (3 << 15) /* Voltage Values */ static const int mc13783_sw1x_val[] = { 900000, 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000, 1525000, 1550000, 1575000, 1600000, 1625000, 1650000, 1675000, 1700000, 1700000, 1700000, 1700000, 1800000, 1800000, 1800000, 1800000, 1850000, 1850000, 1850000, 1850000, 2000000, 2000000, 2000000, 2000000, 2100000, 2100000, 2100000, 2100000, 2200000, 2200000, 2200000, 2200000, 2200000, 2200000, 2200000, 2200000, 2200000, 2200000, 2200000, 2200000, }; static const int mc13783_sw2x_val[] = { 900000, 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000, 1525000, 1550000, 1575000, 1600000, 1625000, 1650000, 1675000, 1700000, 1700000, 1700000, 1700000, 1800000, 1800000, 1800000, 1800000, 1900000, 1900000, 1900000, 1900000, 2000000, 2000000, 2000000, 2000000, 2100000, 2100000, 2100000, 2100000, 2200000, 2200000, 2200000, 2200000, 2200000, 2200000, 2200000, 2200000, 2200000, 2200000, 2200000, 2200000, }; static const unsigned int mc13783_sw3_val[] = { 5000000, 5000000, 5000000, 5500000, }; static const unsigned int mc13783_vaudio_val[] = { 2775000, }; static const unsigned int mc13783_viohi_val[] = { 2775000, }; static const unsigned int mc13783_violo_val[] = { 1200000, 1300000, 1500000, 1800000, }; static const unsigned int mc13783_vdig_val[] = { 1200000, 1300000, 1500000, 1800000, }; static const unsigned int mc13783_vgen_val[] = { 1200000, 1300000, 1500000, 1800000, 1100000, 2000000, 2775000, 2400000, }; static const unsigned int mc13783_vrfdig_val[] = { 1200000, 1500000, 1800000, 1875000, }; static const unsigned int mc13783_vrfref_val[] = { 2475000, 2600000, 2700000, 2775000, }; static const unsigned int mc13783_vrfcp_val[] = { 2700000, 2775000, }; static const unsigned int mc13783_vsim_val[] = { 1800000, 2900000, 3000000, }; static const unsigned int mc13783_vesim_val[] = { 1800000, 2900000, }; static const unsigned int mc13783_vcam_val[] = { 1500000, 1800000, 2500000, 2550000, 2600000, 2750000, 2800000, 3000000, }; static const unsigned int mc13783_vrfbg_val[] = { 1250000, }; static const unsigned int mc13783_vvib_val[] = { 1300000, 1800000, 2000000, 3000000, }; static const unsigned int mc13783_vmmc_val[] = { 1600000, 1800000, 2000000, 2600000, 2700000, 2800000, 2900000, 3000000, }; static const unsigned int mc13783_vrf_val[] = { 1500000, 1875000, 2700000, 2775000, }; static const unsigned int mc13783_gpo_val[] = { 3100000, }; static const unsigned int mc13783_pwgtdrv_val[] = { 5500000, }; static const struct regulator_ops mc13783_gpo_regulator_ops; #define MC13783_DEFINE(prefix, name, node, reg, vsel_reg, voltages) \ MC13xxx_DEFINE(MC13783_REG_, name, node, reg, vsel_reg, voltages, \ mc13xxx_regulator_ops) #define MC13783_FIXED_DEFINE(prefix, name, node, reg, voltages) \ MC13xxx_FIXED_DEFINE(MC13783_REG_, name, node, reg, voltages, \ mc13xxx_fixed_regulator_ops) #define MC13783_GPO_DEFINE(prefix, name, node, reg, voltages) \ MC13xxx_GPO_DEFINE(MC13783_REG_, name, node, reg, voltages, \ mc13783_gpo_regulator_ops) #define MC13783_DEFINE_SW(_name, _node, _reg, _vsel_reg, _voltages) \ MC13783_DEFINE(REG, _name, _node, _reg, _vsel_reg, _voltages) #define MC13783_DEFINE_REGU(_name, _node, _reg, _vsel_reg, _voltages) \ MC13783_DEFINE(REG, _name, _node, _reg, _vsel_reg, _voltages) static struct mc13xxx_regulator mc13783_regulators[] = { MC13783_DEFINE_SW(SW1A, sw1a, SWITCHERS0, SWITCHERS0, mc13783_sw1x_val), MC13783_DEFINE_SW(SW1B, sw1b, SWITCHERS1, SWITCHERS1, mc13783_sw1x_val), MC13783_DEFINE_SW(SW2A, sw2a, SWITCHERS2, SWITCHERS2, mc13783_sw2x_val), MC13783_DEFINE_SW(SW2B, sw2b, SWITCHERS3, SWITCHERS3, mc13783_sw2x_val), MC13783_DEFINE_SW(SW3, sw3, SWITCHERS5, SWITCHERS5, mc13783_sw3_val), MC13783_FIXED_DEFINE(REG, VAUDIO, vaudio, REGULATORMODE0, mc13783_vaudio_val), MC13783_FIXED_DEFINE(REG, VIOHI, viohi, REGULATORMODE0, mc13783_viohi_val), MC13783_DEFINE_REGU(VIOLO, violo, REGULATORMODE0, REGULATORSETTING0, mc13783_violo_val), MC13783_DEFINE_REGU(VDIG, vdig, REGULATORMODE0, REGULATORSETTING0, mc13783_vdig_val), MC13783_DEFINE_REGU(VGEN, vgen, REGULATORMODE0, REGULATORSETTING0, mc13783_vgen_val), MC13783_DEFINE_REGU(VRFDIG, vrfdig, REGULATORMODE0, REGULATORSETTING0, mc13783_vrfdig_val), MC13783_DEFINE_REGU(VRFREF, vrfref, REGULATORMODE0, REGULATORSETTING0, mc13783_vrfref_val), MC13783_DEFINE_REGU(VRFCP, vrfcp, REGULATORMODE0, REGULATORSETTING0, mc13783_vrfcp_val), MC13783_DEFINE_REGU(VSIM, vsim, REGULATORMODE1, REGULATORSETTING0, mc13783_vsim_val), MC13783_DEFINE_REGU(VESIM, vesim, REGULATORMODE1, REGULATORSETTING0, mc13783_vesim_val), MC13783_DEFINE_REGU(VCAM, vcam, REGULATORMODE1, REGULATORSETTING0, mc13783_vcam_val), MC13783_FIXED_DEFINE(REG, VRFBG, vrfbg, REGULATORMODE1, mc13783_vrfbg_val), MC13783_DEFINE_REGU(VVIB, vvib, REGULATORMODE1, REGULATORSETTING1, mc13783_vvib_val), MC13783_DEFINE_REGU(VRF1, vrf1, REGULATORMODE1, REGULATORSETTING1, mc13783_vrf_val), MC13783_DEFINE_REGU(VRF2, vrf2, REGULATORMODE1, REGULATORSETTING1, mc13783_vrf_val), MC13783_DEFINE_REGU(VMMC1, vmmc1, REGULATORMODE1, REGULATORSETTING1, mc13783_vmmc_val), MC13783_DEFINE_REGU(VMMC2, vmmc2, REGULATORMODE1, REGULATORSETTING1, mc13783_vmmc_val), MC13783_GPO_DEFINE(REG, GPO1, gpo1, POWERMISC, mc13783_gpo_val), MC13783_GPO_DEFINE(REG, GPO2, gpo1, POWERMISC, mc13783_gpo_val), MC13783_GPO_DEFINE(REG, GPO3, gpo1, POWERMISC, mc13783_gpo_val), MC13783_GPO_DEFINE(REG, GPO4, gpo1, POWERMISC, mc13783_gpo_val), MC13783_GPO_DEFINE(REG, PWGT1SPI, pwgt1spi, POWERMISC, mc13783_pwgtdrv_val), MC13783_GPO_DEFINE(REG, PWGT2SPI, pwgt2spi, POWERMISC, mc13783_pwgtdrv_val), }; static int mc13783_powermisc_rmw(struct mc13xxx_regulator_priv *priv, u32 mask, u32 val) { struct mc13xxx *mc13783 = priv->mc13xxx; int ret; u32 valread; BUG_ON(val & ~mask); mc13xxx_lock(priv->mc13xxx); ret = mc13xxx_reg_read(mc13783, MC13783_REG_POWERMISC, &valread); if (ret) goto out; /* Update the stored state for Power Gates. */ priv->powermisc_pwgt_state = (priv->powermisc_pwgt_state & ~mask) | val; priv->powermisc_pwgt_state &= MC13783_REG_POWERMISC_PWGTSPI_M; /* Construct the new register value */ valread = (valread & ~mask) | val; /* Overwrite the PWGTxEN with the stored version */ valread = (valread & ~MC13783_REG_POWERMISC_PWGTSPI_M) | priv->powermisc_pwgt_state; ret = mc13xxx_reg_write(mc13783, MC13783_REG_POWERMISC, valread); out: mc13xxx_unlock(priv->mc13xxx); return ret; } static int mc13783_gpo_regulator_enable(struct regulator_dev *rdev) { struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev); struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators; int id = rdev_get_id(rdev); u32 en_val = mc13xxx_regulators[id].enable_bit; dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id); /* Power Gate enable value is 0 */ if (id == MC13783_REG_PWGT1SPI || id == MC13783_REG_PWGT2SPI) en_val = 0; return mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit, en_val); } static int mc13783_gpo_regulator_disable(struct regulator_dev *rdev) { struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev); struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators; int id = rdev_get_id(rdev); u32 dis_val = 0; dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id); /* Power Gate disable value is 1 */ if (id == MC13783_REG_PWGT1SPI || id == MC13783_REG_PWGT2SPI) dis_val = mc13xxx_regulators[id].enable_bit; return mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit, dis_val); } static int mc13783_gpo_regulator_is_enabled(struct regulator_dev *rdev) { struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev); struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators; int ret, id = rdev_get_id(rdev); unsigned int val; mc13xxx_lock(priv->mc13xxx); ret = mc13xxx_reg_read(priv->mc13xxx, mc13xxx_regulators[id].reg, &val); mc13xxx_unlock(priv->mc13xxx); if (ret) return ret; /* Power Gates state is stored in powermisc_pwgt_state * where the meaning of bits is negated */ val = (val & ~MC13783_REG_POWERMISC_PWGTSPI_M) | (priv->powermisc_pwgt_state ^ MC13783_REG_POWERMISC_PWGTSPI_M); return (val & mc13xxx_regulators[id].enable_bit) != 0; } static const struct regulator_ops mc13783_gpo_regulator_ops = { .enable = mc13783_gpo_regulator_enable, .disable = mc13783_gpo_regulator_disable, .is_enabled = mc13783_gpo_regulator_is_enabled, .list_voltage = regulator_list_voltage_table, .set_voltage = mc13xxx_fixed_regulator_set_voltage, }; static int mc13783_regulator_probe(struct platform_device *pdev) { struct mc13xxx_regulator_priv *priv; struct mc13xxx *mc13783 = dev_get_drvdata(pdev->dev.parent); struct mc13xxx_regulator_platform_data *pdata = dev_get_platdata(&pdev->dev); struct mc13xxx_regulator_init_data *mc13xxx_data; struct regulator_config config = { }; int i, num_regulators; num_regulators = mc13xxx_get_num_regulators_dt(pdev); if (num_regulators <= 0 && pdata) num_regulators = pdata->num_regulators; if (num_regulators <= 0) return -EINVAL; priv = devm_kzalloc(&pdev->dev, struct_size(priv, regulators, num_regulators), GFP_KERNEL); if (!priv) return -ENOMEM; priv->num_regulators = num_regulators; priv->mc13xxx_regulators = mc13783_regulators; priv->mc13xxx = mc13783; platform_set_drvdata(pdev, priv); mc13xxx_data = mc13xxx_parse_regulators_dt(pdev, mc13783_regulators, ARRAY_SIZE(mc13783_regulators)); for (i = 0; i < priv->num_regulators; i++) { struct regulator_init_data *init_data; struct regulator_desc *desc; struct device_node *node = NULL; int id; if (mc13xxx_data) { id = mc13xxx_data[i].id; init_data = mc13xxx_data[i].init_data; node = mc13xxx_data[i].node; } else { id = pdata->regulators[i].id; init_data = pdata->regulators[i].init_data; } desc = &mc13783_regulators[id].desc; config.dev = &pdev->dev; config.init_data = init_data; config.driver_data = priv; config.of_node = node; priv->regulators[i] = devm_regulator_register(&pdev->dev, desc, &config); if (IS_ERR(priv->regulators[i])) { dev_err(&pdev->dev, "failed to register regulator %s\n", mc13783_regulators[i].desc.name); return PTR_ERR(priv->regulators[i]); } } return 0; } static struct platform_driver mc13783_regulator_driver = { .driver = { .name = "mc13783-regulator", .probe_type = PROBE_PREFER_ASYNCHRONOUS, }, .probe = mc13783_regulator_probe, }; static int __init mc13783_regulator_init(void) { return platform_driver_register(&mc13783_regulator_driver); } subsys_initcall(mc13783_regulator_init); static void __exit mc13783_regulator_exit(void) { platform_driver_unregister(&mc13783_regulator_driver); } module_exit(mc13783_regulator_exit); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>"); MODULE_DESCRIPTION("Regulator Driver for Freescale MC13783 PMIC"); MODULE_ALIAS("platform:mc13783-regulator"); |