1 /* 2 * Copyright (c) 2015, Sony Mobile Communications AB. 3 * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved. 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 and 7 * only version 2 as published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 */ 14 15 #include <linux/module.h> 16 #include <linux/of.h> 17 #include <linux/of_device.h> 18 #include <linux/platform_device.h> 19 #include <linux/regulator/driver.h> 20 #include <linux/regulator/machine.h> 21 #include <linux/regulator/of_regulator.h> 22 #include <linux/soc/qcom/smd-rpm.h> 23 24 struct qcom_rpm_reg { 25 struct device *dev; 26 27 struct qcom_smd_rpm *rpm; 28 29 u32 type; 30 u32 id; 31 32 struct regulator_desc desc; 33 34 int is_enabled; 35 int uV; 36 }; 37 38 struct rpm_regulator_req { 39 __le32 key; 40 __le32 nbytes; 41 __le32 value; 42 }; 43 44 #define RPM_KEY_SWEN 0x6e657773 /* "swen" */ 45 #define RPM_KEY_UV 0x00007675 /* "uv" */ 46 #define RPM_KEY_MA 0x0000616d /* "ma" */ 47 48 static int rpm_reg_write_active(struct qcom_rpm_reg *vreg, 49 struct rpm_regulator_req *req, 50 size_t size) 51 { 52 return qcom_rpm_smd_write(vreg->rpm, 53 QCOM_SMD_RPM_ACTIVE_STATE, 54 vreg->type, 55 vreg->id, 56 req, size); 57 } 58 59 static int rpm_reg_enable(struct regulator_dev *rdev) 60 { 61 struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); 62 struct rpm_regulator_req req; 63 int ret; 64 65 req.key = cpu_to_le32(RPM_KEY_SWEN); 66 req.nbytes = cpu_to_le32(sizeof(u32)); 67 req.value = cpu_to_le32(1); 68 69 ret = rpm_reg_write_active(vreg, &req, sizeof(req)); 70 if (!ret) 71 vreg->is_enabled = 1; 72 73 return ret; 74 } 75 76 static int rpm_reg_is_enabled(struct regulator_dev *rdev) 77 { 78 struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); 79 80 return vreg->is_enabled; 81 } 82 83 static int rpm_reg_disable(struct regulator_dev *rdev) 84 { 85 struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); 86 struct rpm_regulator_req req; 87 int ret; 88 89 req.key = cpu_to_le32(RPM_KEY_SWEN); 90 req.nbytes = cpu_to_le32(sizeof(u32)); 91 req.value = 0; 92 93 ret = rpm_reg_write_active(vreg, &req, sizeof(req)); 94 if (!ret) 95 vreg->is_enabled = 0; 96 97 return ret; 98 } 99 100 static int rpm_reg_get_voltage(struct regulator_dev *rdev) 101 { 102 struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); 103 104 return vreg->uV; 105 } 106 107 static int rpm_reg_set_voltage(struct regulator_dev *rdev, 108 int min_uV, 109 int max_uV, 110 unsigned *selector) 111 { 112 struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); 113 struct rpm_regulator_req req; 114 int ret = 0; 115 116 req.key = cpu_to_le32(RPM_KEY_UV); 117 req.nbytes = cpu_to_le32(sizeof(u32)); 118 req.value = cpu_to_le32(min_uV); 119 120 ret = rpm_reg_write_active(vreg, &req, sizeof(req)); 121 if (!ret) 122 vreg->uV = min_uV; 123 124 return ret; 125 } 126 127 static int rpm_reg_set_load(struct regulator_dev *rdev, int load_uA) 128 { 129 struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); 130 struct rpm_regulator_req req; 131 132 req.key = cpu_to_le32(RPM_KEY_MA); 133 req.nbytes = cpu_to_le32(sizeof(u32)); 134 req.value = cpu_to_le32(load_uA / 1000); 135 136 return rpm_reg_write_active(vreg, &req, sizeof(req)); 137 } 138 139 static const struct regulator_ops rpm_smps_ldo_ops = { 140 .enable = rpm_reg_enable, 141 .disable = rpm_reg_disable, 142 .is_enabled = rpm_reg_is_enabled, 143 144 .get_voltage = rpm_reg_get_voltage, 145 .set_voltage = rpm_reg_set_voltage, 146 147 .set_load = rpm_reg_set_load, 148 }; 149 150 static const struct regulator_ops rpm_switch_ops = { 151 .enable = rpm_reg_enable, 152 .disable = rpm_reg_disable, 153 .is_enabled = rpm_reg_is_enabled, 154 }; 155 156 static const struct regulator_desc pma8084_hfsmps = { 157 .linear_ranges = (struct regulator_linear_range[]) { 158 REGULATOR_LINEAR_RANGE(375000, 0, 95, 12500), 159 REGULATOR_LINEAR_RANGE(1550000, 96, 158, 25000), 160 }, 161 .n_linear_ranges = 2, 162 .n_voltages = 159, 163 .ops = &rpm_smps_ldo_ops, 164 }; 165 166 static const struct regulator_desc pma8084_ftsmps = { 167 .linear_ranges = (struct regulator_linear_range[]) { 168 REGULATOR_LINEAR_RANGE(350000, 0, 184, 5000), 169 REGULATOR_LINEAR_RANGE(700000, 185, 339, 10000), 170 }, 171 .n_linear_ranges = 2, 172 .n_voltages = 340, 173 .ops = &rpm_smps_ldo_ops, 174 }; 175 176 static const struct regulator_desc pma8084_pldo = { 177 .linear_ranges = (struct regulator_linear_range[]) { 178 REGULATOR_LINEAR_RANGE(750000, 0, 30, 25000), 179 REGULATOR_LINEAR_RANGE(1500000, 31, 99, 50000), 180 }, 181 .n_linear_ranges = 2, 182 .n_voltages = 100, 183 .ops = &rpm_smps_ldo_ops, 184 }; 185 186 static const struct regulator_desc pma8084_nldo = { 187 .linear_ranges = (struct regulator_linear_range[]) { 188 REGULATOR_LINEAR_RANGE(750000, 0, 63, 12500), 189 }, 190 .n_linear_ranges = 1, 191 .n_voltages = 64, 192 .ops = &rpm_smps_ldo_ops, 193 }; 194 195 static const struct regulator_desc pma8084_switch = { 196 .ops = &rpm_switch_ops, 197 }; 198 199 static const struct regulator_desc pm8x41_hfsmps = { 200 .linear_ranges = (struct regulator_linear_range[]) { 201 REGULATOR_LINEAR_RANGE( 375000, 0, 95, 12500), 202 REGULATOR_LINEAR_RANGE(1550000, 96, 158, 25000), 203 }, 204 .n_linear_ranges = 2, 205 .n_voltages = 159, 206 .ops = &rpm_smps_ldo_ops, 207 }; 208 209 static const struct regulator_desc pm8841_ftsmps = { 210 .linear_ranges = (struct regulator_linear_range[]) { 211 REGULATOR_LINEAR_RANGE(350000, 0, 184, 5000), 212 REGULATOR_LINEAR_RANGE(700000, 185, 339, 10000), 213 }, 214 .n_linear_ranges = 2, 215 .n_voltages = 340, 216 .ops = &rpm_smps_ldo_ops, 217 }; 218 219 static const struct regulator_desc pm8941_boost = { 220 .linear_ranges = (struct regulator_linear_range[]) { 221 REGULATOR_LINEAR_RANGE(4000000, 0, 15, 100000), 222 }, 223 .n_linear_ranges = 1, 224 .n_voltages = 16, 225 .ops = &rpm_smps_ldo_ops, 226 }; 227 228 static const struct regulator_desc pm8941_pldo = { 229 .linear_ranges = (struct regulator_linear_range[]) { 230 REGULATOR_LINEAR_RANGE( 750000, 0, 30, 25000), 231 REGULATOR_LINEAR_RANGE(1500000, 31, 99, 50000), 232 }, 233 .n_linear_ranges = 2, 234 .n_voltages = 100, 235 .ops = &rpm_smps_ldo_ops, 236 }; 237 238 static const struct regulator_desc pm8941_nldo = { 239 .linear_ranges = (struct regulator_linear_range[]) { 240 REGULATOR_LINEAR_RANGE(750000, 0, 63, 12500), 241 }, 242 .n_linear_ranges = 1, 243 .n_voltages = 64, 244 .ops = &rpm_smps_ldo_ops, 245 }; 246 247 static const struct regulator_desc pm8941_lnldo = { 248 .fixed_uV = 1740000, 249 .n_voltages = 1, 250 .ops = &rpm_smps_ldo_ops, 251 }; 252 253 static const struct regulator_desc pm8941_switch = { 254 .ops = &rpm_switch_ops, 255 }; 256 257 static const struct regulator_desc pm8916_pldo = { 258 .linear_ranges = (struct regulator_linear_range[]) { 259 REGULATOR_LINEAR_RANGE(750000, 0, 208, 12500), 260 }, 261 .n_linear_ranges = 1, 262 .n_voltages = 209, 263 .ops = &rpm_smps_ldo_ops, 264 }; 265 266 static const struct regulator_desc pm8916_nldo = { 267 .linear_ranges = (struct regulator_linear_range[]) { 268 REGULATOR_LINEAR_RANGE(375000, 0, 93, 12500), 269 }, 270 .n_linear_ranges = 1, 271 .n_voltages = 94, 272 .ops = &rpm_smps_ldo_ops, 273 }; 274 275 static const struct regulator_desc pm8916_buck_lvo_smps = { 276 .linear_ranges = (struct regulator_linear_range[]) { 277 REGULATOR_LINEAR_RANGE(375000, 0, 95, 12500), 278 REGULATOR_LINEAR_RANGE(750000, 96, 127, 25000), 279 }, 280 .n_linear_ranges = 2, 281 .n_voltages = 128, 282 .ops = &rpm_smps_ldo_ops, 283 }; 284 285 static const struct regulator_desc pm8916_buck_hvo_smps = { 286 .linear_ranges = (struct regulator_linear_range[]) { 287 REGULATOR_LINEAR_RANGE(1550000, 0, 31, 25000), 288 }, 289 .n_linear_ranges = 1, 290 .n_voltages = 32, 291 .ops = &rpm_smps_ldo_ops, 292 }; 293 294 struct rpm_regulator_data { 295 const char *name; 296 u32 type; 297 u32 id; 298 const struct regulator_desc *desc; 299 const char *supply; 300 }; 301 302 static const struct rpm_regulator_data rpm_pm8841_regulators[] = { 303 { "s1", QCOM_SMD_RPM_SMPB, 1, &pm8x41_hfsmps, "vdd_s1" }, 304 { "s2", QCOM_SMD_RPM_SMPB, 2, &pm8841_ftsmps, "vdd_s2" }, 305 { "s3", QCOM_SMD_RPM_SMPB, 3, &pm8x41_hfsmps, "vdd_s3" }, 306 { "s4", QCOM_SMD_RPM_SMPB, 4, &pm8841_ftsmps, "vdd_s4" }, 307 { "s5", QCOM_SMD_RPM_SMPB, 5, &pm8841_ftsmps, "vdd_s5" }, 308 { "s6", QCOM_SMD_RPM_SMPB, 6, &pm8841_ftsmps, "vdd_s6" }, 309 { "s7", QCOM_SMD_RPM_SMPB, 7, &pm8841_ftsmps, "vdd_s7" }, 310 { "s8", QCOM_SMD_RPM_SMPB, 8, &pm8841_ftsmps, "vdd_s8" }, 311 {} 312 }; 313 314 static const struct rpm_regulator_data rpm_pm8916_regulators[] = { 315 { "s1", QCOM_SMD_RPM_SMPA, 1, &pm8916_buck_lvo_smps, "vdd_s1" }, 316 { "s2", QCOM_SMD_RPM_SMPA, 2, &pm8916_buck_lvo_smps, "vdd_s2" }, 317 { "s3", QCOM_SMD_RPM_SMPA, 3, &pm8916_buck_lvo_smps, "vdd_s3" }, 318 { "s4", QCOM_SMD_RPM_SMPA, 4, &pm8916_buck_hvo_smps, "vdd_s4" }, 319 { "l1", QCOM_SMD_RPM_LDOA, 1, &pm8916_nldo, "vdd_l1_l2_l3" }, 320 { "l2", QCOM_SMD_RPM_LDOA, 2, &pm8916_nldo, "vdd_l1_l2_l3" }, 321 { "l3", QCOM_SMD_RPM_LDOA, 3, &pm8916_nldo, "vdd_l1_l2_l3" }, 322 { "l4", QCOM_SMD_RPM_LDOA, 4, &pm8916_pldo, "vdd_l4_l5_l6" }, 323 { "l5", QCOM_SMD_RPM_LDOA, 5, &pm8916_pldo, "vdd_l4_l5_l6" }, 324 { "l6", QCOM_SMD_RPM_LDOA, 6, &pm8916_pldo, "vdd_l4_l5_l6" }, 325 { "l7", QCOM_SMD_RPM_LDOA, 7, &pm8916_pldo, "vdd_l7" }, 326 { "l8", QCOM_SMD_RPM_LDOA, 8, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18" }, 327 { "l9", QCOM_SMD_RPM_LDOA, 9, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18" }, 328 { "l10", QCOM_SMD_RPM_LDOA, 10, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18"}, 329 { "l11", QCOM_SMD_RPM_LDOA, 11, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18"}, 330 { "l12", QCOM_SMD_RPM_LDOA, 12, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18"}, 331 { "l13", QCOM_SMD_RPM_LDOA, 13, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18"}, 332 { "l14", QCOM_SMD_RPM_LDOA, 14, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18"}, 333 { "l15", QCOM_SMD_RPM_LDOA, 15, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18"}, 334 { "l16", QCOM_SMD_RPM_LDOA, 16, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18"}, 335 { "l17", QCOM_SMD_RPM_LDOA, 17, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18"}, 336 { "l18", QCOM_SMD_RPM_LDOA, 18, &pm8916_pldo, "vdd_l8_l9_l10_l11_l12_l13_l14_l15_l16_l17_l18"}, 337 {} 338 }; 339 340 static const struct rpm_regulator_data rpm_pm8941_regulators[] = { 341 { "s1", QCOM_SMD_RPM_SMPA, 1, &pm8x41_hfsmps, "vdd_s1" }, 342 { "s2", QCOM_SMD_RPM_SMPA, 2, &pm8x41_hfsmps, "vdd_s2" }, 343 { "s3", QCOM_SMD_RPM_SMPA, 3, &pm8x41_hfsmps, "vdd_s3" }, 344 { "s4", QCOM_SMD_RPM_BOOST, 1, &pm8941_boost }, 345 346 { "l1", QCOM_SMD_RPM_LDOA, 1, &pm8941_nldo, "vdd_l1_l3" }, 347 { "l2", QCOM_SMD_RPM_LDOA, 2, &pm8941_nldo, "vdd_l2_lvs1_2_3" }, 348 { "l3", QCOM_SMD_RPM_LDOA, 3, &pm8941_nldo, "vdd_l1_l3" }, 349 { "l4", QCOM_SMD_RPM_LDOA, 4, &pm8941_nldo, "vdd_l4_l11" }, 350 { "l5", QCOM_SMD_RPM_LDOA, 5, &pm8941_lnldo, "vdd_l5_l7" }, 351 { "l6", QCOM_SMD_RPM_LDOA, 6, &pm8941_pldo, "vdd_l6_l12_l14_l15" }, 352 { "l7", QCOM_SMD_RPM_LDOA, 7, &pm8941_lnldo, "vdd_l5_l7" }, 353 { "l8", QCOM_SMD_RPM_LDOA, 8, &pm8941_pldo, "vdd_l8_l16_l18_l19" }, 354 { "l9", QCOM_SMD_RPM_LDOA, 9, &pm8941_pldo, "vdd_l9_l10_l17_l22" }, 355 { "l10", QCOM_SMD_RPM_LDOA, 10, &pm8941_pldo, "vdd_l9_l10_l17_l22" }, 356 { "l11", QCOM_SMD_RPM_LDOA, 11, &pm8941_nldo, "vdd_l4_l11" }, 357 { "l12", QCOM_SMD_RPM_LDOA, 12, &pm8941_pldo, "vdd_l6_l12_l14_l15" }, 358 { "l13", QCOM_SMD_RPM_LDOA, 13, &pm8941_pldo, "vdd_l13_l20_l23_l24" }, 359 { "l14", QCOM_SMD_RPM_LDOA, 14, &pm8941_pldo, "vdd_l6_l12_l14_l15" }, 360 { "l15", QCOM_SMD_RPM_LDOA, 15, &pm8941_pldo, "vdd_l6_l12_l14_l15" }, 361 { "l16", QCOM_SMD_RPM_LDOA, 16, &pm8941_pldo, "vdd_l8_l16_l18_l19" }, 362 { "l17", QCOM_SMD_RPM_LDOA, 17, &pm8941_pldo, "vdd_l9_l10_l17_l22" }, 363 { "l18", QCOM_SMD_RPM_LDOA, 18, &pm8941_pldo, "vdd_l8_l16_l18_l19" }, 364 { "l19", QCOM_SMD_RPM_LDOA, 19, &pm8941_pldo, "vdd_l8_l16_l18_l19" }, 365 { "l20", QCOM_SMD_RPM_LDOA, 20, &pm8941_pldo, "vdd_l13_l20_l23_l24" }, 366 { "l21", QCOM_SMD_RPM_LDOA, 21, &pm8941_pldo, "vdd_l21" }, 367 { "l22", QCOM_SMD_RPM_LDOA, 22, &pm8941_pldo, "vdd_l9_l10_l17_l22" }, 368 { "l23", QCOM_SMD_RPM_LDOA, 23, &pm8941_pldo, "vdd_l13_l20_l23_l24" }, 369 { "l24", QCOM_SMD_RPM_LDOA, 24, &pm8941_pldo, "vdd_l13_l20_l23_l24" }, 370 371 { "lvs1", QCOM_SMD_RPM_VSA, 1, &pm8941_switch, "vdd_l2_lvs1_2_3" }, 372 { "lvs2", QCOM_SMD_RPM_VSA, 2, &pm8941_switch, "vdd_l2_lvs1_2_3" }, 373 { "lvs3", QCOM_SMD_RPM_VSA, 3, &pm8941_switch, "vdd_l2_lvs1_2_3" }, 374 375 { "5vs1", QCOM_SMD_RPM_VSA, 4, &pm8941_switch, "vin_5vs" }, 376 { "5vs2", QCOM_SMD_RPM_VSA, 5, &pm8941_switch, "vin_5vs" }, 377 378 {} 379 }; 380 381 static const struct rpm_regulator_data rpm_pma8084_regulators[] = { 382 { "s1", QCOM_SMD_RPM_SMPA, 1, &pma8084_ftsmps, "vdd_s1" }, 383 { "s2", QCOM_SMD_RPM_SMPA, 2, &pma8084_ftsmps, "vdd_s2" }, 384 { "s3", QCOM_SMD_RPM_SMPA, 3, &pma8084_hfsmps, "vdd_s3" }, 385 { "s4", QCOM_SMD_RPM_SMPA, 4, &pma8084_hfsmps, "vdd_s4" }, 386 { "s5", QCOM_SMD_RPM_SMPA, 5, &pma8084_hfsmps, "vdd_s5" }, 387 { "s6", QCOM_SMD_RPM_SMPA, 6, &pma8084_ftsmps, "vdd_s6" }, 388 { "s7", QCOM_SMD_RPM_SMPA, 7, &pma8084_ftsmps, "vdd_s7" }, 389 { "s8", QCOM_SMD_RPM_SMPA, 8, &pma8084_ftsmps, "vdd_s8" }, 390 { "s9", QCOM_SMD_RPM_SMPA, 9, &pma8084_ftsmps, "vdd_s9" }, 391 { "s10", QCOM_SMD_RPM_SMPA, 10, &pma8084_ftsmps, "vdd_s10" }, 392 { "s11", QCOM_SMD_RPM_SMPA, 11, &pma8084_ftsmps, "vdd_s11" }, 393 { "s12", QCOM_SMD_RPM_SMPA, 12, &pma8084_ftsmps, "vdd_s12" }, 394 395 { "l1", QCOM_SMD_RPM_LDOA, 1, &pma8084_nldo, "vdd_l1_l11" }, 396 { "l2", QCOM_SMD_RPM_LDOA, 2, &pma8084_nldo, "vdd_l2_l3_l4_l27" }, 397 { "l3", QCOM_SMD_RPM_LDOA, 3, &pma8084_nldo, "vdd_l2_l3_l4_l27" }, 398 { "l4", QCOM_SMD_RPM_LDOA, 4, &pma8084_nldo, "vdd_l2_l3_l4_l27" }, 399 { "l5", QCOM_SMD_RPM_LDOA, 5, &pma8084_pldo, "vdd_l5_l7" }, 400 { "l6", QCOM_SMD_RPM_LDOA, 6, &pma8084_pldo, "vdd_l6_l12_l14_l15_l26" }, 401 { "l7", QCOM_SMD_RPM_LDOA, 7, &pma8084_pldo, "vdd_l5_l7" }, 402 { "l8", QCOM_SMD_RPM_LDOA, 8, &pma8084_pldo, "vdd_l8" }, 403 { "l9", QCOM_SMD_RPM_LDOA, 9, &pma8084_pldo, "vdd_l9_l10_l13_l20_l23_l24" }, 404 { "l10", QCOM_SMD_RPM_LDOA, 10, &pma8084_pldo, "vdd_l9_l10_l13_l20_l23_l24" }, 405 { "l11", QCOM_SMD_RPM_LDOA, 11, &pma8084_nldo, "vdd_l1_l11" }, 406 { "l12", QCOM_SMD_RPM_LDOA, 12, &pma8084_pldo, "vdd_l6_l12_l14_l15_l26" }, 407 { "l13", QCOM_SMD_RPM_LDOA, 13, &pma8084_pldo, "vdd_l9_l10_l13_l20_l23_l24" }, 408 { "l14", QCOM_SMD_RPM_LDOA, 14, &pma8084_pldo, "vdd_l6_l12_l14_l15_l26" }, 409 { "l15", QCOM_SMD_RPM_LDOA, 15, &pma8084_pldo, "vdd_l6_l12_l14_l15_l26" }, 410 { "l16", QCOM_SMD_RPM_LDOA, 16, &pma8084_pldo, "vdd_l16_l25" }, 411 { "l17", QCOM_SMD_RPM_LDOA, 17, &pma8084_pldo, "vdd_l17" }, 412 { "l18", QCOM_SMD_RPM_LDOA, 18, &pma8084_pldo, "vdd_l18" }, 413 { "l19", QCOM_SMD_RPM_LDOA, 19, &pma8084_pldo, "vdd_l19" }, 414 { "l20", QCOM_SMD_RPM_LDOA, 20, &pma8084_pldo, "vdd_l9_l10_l13_l20_l23_l24" }, 415 { "l21", QCOM_SMD_RPM_LDOA, 21, &pma8084_pldo, "vdd_l21" }, 416 { "l22", QCOM_SMD_RPM_LDOA, 22, &pma8084_pldo, "vdd_l22" }, 417 { "l23", QCOM_SMD_RPM_LDOA, 23, &pma8084_pldo, "vdd_l9_l10_l13_l20_l23_l24" }, 418 { "l24", QCOM_SMD_RPM_LDOA, 24, &pma8084_pldo, "vdd_l9_l10_l13_l20_l23_l24" }, 419 { "l25", QCOM_SMD_RPM_LDOA, 25, &pma8084_pldo, "vdd_l16_l25" }, 420 { "l26", QCOM_SMD_RPM_LDOA, 26, &pma8084_pldo, "vdd_l6_l12_l14_l15_l26" }, 421 { "l27", QCOM_SMD_RPM_LDOA, 27, &pma8084_nldo, "vdd_l2_l3_l4_l27" }, 422 423 { "lvs1", QCOM_SMD_RPM_VSA, 1, &pma8084_switch }, 424 { "lvs2", QCOM_SMD_RPM_VSA, 2, &pma8084_switch }, 425 { "lvs3", QCOM_SMD_RPM_VSA, 3, &pma8084_switch }, 426 { "lvs4", QCOM_SMD_RPM_VSA, 4, &pma8084_switch }, 427 { "5vs1", QCOM_SMD_RPM_VSA, 5, &pma8084_switch }, 428 429 {} 430 }; 431 432 static const struct of_device_id rpm_of_match[] = { 433 { .compatible = "qcom,rpm-pm8841-regulators", .data = &rpm_pm8841_regulators }, 434 { .compatible = "qcom,rpm-pm8916-regulators", .data = &rpm_pm8916_regulators }, 435 { .compatible = "qcom,rpm-pm8941-regulators", .data = &rpm_pm8941_regulators }, 436 { .compatible = "qcom,rpm-pma8084-regulators", .data = &rpm_pma8084_regulators }, 437 {} 438 }; 439 MODULE_DEVICE_TABLE(of, rpm_of_match); 440 441 static int rpm_reg_probe(struct platform_device *pdev) 442 { 443 const struct rpm_regulator_data *reg; 444 const struct of_device_id *match; 445 struct regulator_config config = { }; 446 struct regulator_dev *rdev; 447 struct qcom_rpm_reg *vreg; 448 struct qcom_smd_rpm *rpm; 449 450 rpm = dev_get_drvdata(pdev->dev.parent); 451 if (!rpm) { 452 dev_err(&pdev->dev, "unable to retrieve handle to rpm\n"); 453 return -ENODEV; 454 } 455 456 match = of_match_device(rpm_of_match, &pdev->dev); 457 for (reg = match->data; reg->name; reg++) { 458 vreg = devm_kzalloc(&pdev->dev, sizeof(*vreg), GFP_KERNEL); 459 if (!vreg) 460 return -ENOMEM; 461 462 vreg->dev = &pdev->dev; 463 vreg->type = reg->type; 464 vreg->id = reg->id; 465 vreg->rpm = rpm; 466 467 memcpy(&vreg->desc, reg->desc, sizeof(vreg->desc)); 468 469 vreg->desc.id = -1; 470 vreg->desc.owner = THIS_MODULE; 471 vreg->desc.type = REGULATOR_VOLTAGE; 472 vreg->desc.name = reg->name; 473 vreg->desc.supply_name = reg->supply; 474 vreg->desc.of_match = reg->name; 475 476 config.dev = &pdev->dev; 477 config.driver_data = vreg; 478 rdev = devm_regulator_register(&pdev->dev, &vreg->desc, &config); 479 if (IS_ERR(rdev)) { 480 dev_err(&pdev->dev, "failed to register %s\n", reg->name); 481 return PTR_ERR(rdev); 482 } 483 } 484 485 return 0; 486 } 487 488 static struct platform_driver rpm_reg_driver = { 489 .probe = rpm_reg_probe, 490 .driver = { 491 .name = "qcom_rpm_smd_regulator", 492 .of_match_table = rpm_of_match, 493 }, 494 }; 495 496 static int __init rpm_reg_init(void) 497 { 498 return platform_driver_register(&rpm_reg_driver); 499 } 500 subsys_initcall(rpm_reg_init); 501 502 static void __exit rpm_reg_exit(void) 503 { 504 platform_driver_unregister(&rpm_reg_driver); 505 } 506 module_exit(rpm_reg_exit) 507 508 MODULE_DESCRIPTION("Qualcomm RPM regulator driver"); 509 MODULE_LICENSE("GPL v2"); 510