Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Regulators driver for Marvell 88PM8607 |
| 3 | * |
| 4 | * Copyright (C) 2009 Marvell International Ltd. |
| 5 | * Haojian Zhuang <haojian.zhuang@marvell.com> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 as |
| 9 | * published by the Free Software Foundation. |
| 10 | */ |
| 11 | #include <linux/kernel.h> |
| 12 | #include <linux/init.h> |
| 13 | #include <linux/err.h> |
Haojian Zhuang | 53dbab7 | 2010-01-08 06:01:24 -0500 | [diff] [blame] | 14 | #include <linux/i2c.h> |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 15 | #include <linux/platform_device.h> |
| 16 | #include <linux/regulator/driver.h> |
| 17 | #include <linux/regulator/machine.h> |
Haojian Zhuang | 53dbab7 | 2010-01-08 06:01:24 -0500 | [diff] [blame] | 18 | #include <linux/mfd/88pm860x.h> |
Paul Gortmaker | 65602c3 | 2011-07-17 16:28:23 -0400 | [diff] [blame] | 19 | #include <linux/module.h> |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 20 | |
| 21 | struct pm8607_regulator_info { |
| 22 | struct regulator_desc desc; |
Haojian Zhuang | 53dbab7 | 2010-01-08 06:01:24 -0500 | [diff] [blame] | 23 | struct pm860x_chip *chip; |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 24 | struct regulator_dev *regulator; |
Haojian Zhuang | 53dbab7 | 2010-01-08 06:01:24 -0500 | [diff] [blame] | 25 | struct i2c_client *i2c; |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 26 | |
Haojian Zhuang | 9f79e9d | 2010-05-04 09:54:51 -0400 | [diff] [blame] | 27 | unsigned int *vol_table; |
| 28 | unsigned int *vol_suspend; |
| 29 | |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 30 | int vol_reg; |
| 31 | int vol_shift; |
| 32 | int vol_nbits; |
| 33 | int update_reg; |
| 34 | int update_bit; |
| 35 | int enable_reg; |
| 36 | int enable_bit; |
| 37 | int slope_double; |
| 38 | }; |
| 39 | |
Haojian Zhuang | 9f79e9d | 2010-05-04 09:54:51 -0400 | [diff] [blame] | 40 | static const unsigned int BUCK1_table[] = { |
| 41 | 725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000, |
| 42 | 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000, |
| 43 | 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000, |
| 44 | 1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000, |
| 45 | 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000, |
| 46 | 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000, |
| 47 | 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000, |
| 48 | 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000, |
| 49 | }; |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 50 | |
Haojian Zhuang | 9f79e9d | 2010-05-04 09:54:51 -0400 | [diff] [blame] | 51 | static const unsigned int BUCK1_suspend_table[] = { |
| 52 | 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000, |
| 53 | 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000, |
| 54 | 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000, |
| 55 | 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000, |
| 56 | 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000, |
| 57 | 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000, |
| 58 | 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000, |
| 59 | 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000, |
| 60 | }; |
| 61 | |
| 62 | static const unsigned int BUCK2_table[] = { |
| 63 | 0, 50000, 100000, 150000, 200000, 250000, 300000, 350000, |
| 64 | 400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000, |
| 65 | 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000, |
| 66 | 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000, |
| 67 | 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000, |
| 68 | 2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000, |
| 69 | 2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000, |
| 70 | 2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000, |
| 71 | }; |
| 72 | |
| 73 | static const unsigned int BUCK2_suspend_table[] = { |
| 74 | 0, 50000, 100000, 150000, 200000, 250000, 300000, 350000, |
| 75 | 400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000, |
| 76 | 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000, |
| 77 | 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000, |
| 78 | 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000, |
| 79 | 2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000, |
| 80 | 2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000, |
| 81 | 2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000, |
| 82 | }; |
| 83 | |
| 84 | static const unsigned int BUCK3_table[] = { |
| 85 | 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000, |
| 86 | 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000, |
| 87 | 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000, |
| 88 | 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000, |
| 89 | 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000, |
| 90 | 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000, |
| 91 | 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000, |
| 92 | 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000, |
| 93 | }; |
| 94 | |
| 95 | static const unsigned int BUCK3_suspend_table[] = { |
| 96 | 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000, |
| 97 | 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000, |
| 98 | 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000, |
| 99 | 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000, |
| 100 | 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000, |
| 101 | 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000, |
| 102 | 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000, |
| 103 | 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000, |
| 104 | }; |
| 105 | |
| 106 | static const unsigned int LDO1_table[] = { |
| 107 | 1800000, 1200000, 2800000, 0, |
| 108 | }; |
| 109 | |
| 110 | static const unsigned int LDO1_suspend_table[] = { |
| 111 | 1800000, 1200000, 0, 0, |
| 112 | }; |
| 113 | |
| 114 | static const unsigned int LDO2_table[] = { |
| 115 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000, |
| 116 | }; |
| 117 | |
| 118 | static const unsigned int LDO2_suspend_table[] = { |
| 119 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, |
| 120 | }; |
| 121 | |
| 122 | static const unsigned int LDO3_table[] = { |
| 123 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000, |
| 124 | }; |
| 125 | |
| 126 | static const unsigned int LDO3_suspend_table[] = { |
| 127 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, |
| 128 | }; |
| 129 | |
| 130 | static const unsigned int LDO4_table[] = { |
| 131 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 3300000, |
| 132 | }; |
| 133 | |
| 134 | static const unsigned int LDO4_suspend_table[] = { |
| 135 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 2900000, |
| 136 | }; |
| 137 | |
| 138 | static const unsigned int LDO5_table[] = { |
| 139 | 2900000, 3000000, 3100000, 3300000, |
| 140 | }; |
| 141 | |
| 142 | static const unsigned int LDO5_suspend_table[] = { |
| 143 | 2900000, 0, 0, 0, |
| 144 | }; |
| 145 | |
| 146 | static const unsigned int LDO6_table[] = { |
| 147 | 1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 3300000, |
| 148 | }; |
| 149 | |
| 150 | static const unsigned int LDO6_suspend_table[] = { |
| 151 | 1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 2900000, |
| 152 | }; |
| 153 | |
| 154 | static const unsigned int LDO7_table[] = { |
| 155 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, |
| 156 | }; |
| 157 | |
| 158 | static const unsigned int LDO7_suspend_table[] = { |
| 159 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, |
| 160 | }; |
| 161 | |
| 162 | static const unsigned int LDO8_table[] = { |
| 163 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, |
| 164 | }; |
| 165 | |
| 166 | static const unsigned int LDO8_suspend_table[] = { |
| 167 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, |
| 168 | }; |
| 169 | |
| 170 | static const unsigned int LDO9_table[] = { |
| 171 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000, |
| 172 | }; |
| 173 | |
| 174 | static const unsigned int LDO9_suspend_table[] = { |
| 175 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, |
| 176 | }; |
| 177 | |
| 178 | static const unsigned int LDO10_table[] = { |
| 179 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000, |
| 180 | 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, |
| 181 | }; |
| 182 | |
| 183 | static const unsigned int LDO10_suspend_table[] = { |
| 184 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, |
| 185 | 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, |
| 186 | }; |
| 187 | |
| 188 | static const unsigned int LDO12_table[] = { |
| 189 | 1800000, 1900000, 2700000, 2800000, 2900000, 3000000, 3100000, 3300000, |
| 190 | 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, |
| 191 | }; |
| 192 | |
| 193 | static const unsigned int LDO12_suspend_table[] = { |
| 194 | 1800000, 1900000, 2700000, 2800000, 2900000, 2900000, 2900000, 2900000, |
| 195 | 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, |
| 196 | }; |
| 197 | |
| 198 | static const unsigned int LDO13_table[] = { |
| 199 | 1300000, 1800000, 2000000, 2500000, 2800000, 3000000, 0, 0, |
| 200 | }; |
| 201 | |
| 202 | static const unsigned int LDO13_suspend_table[] = { |
| 203 | 0, |
| 204 | }; |
| 205 | |
| 206 | static const unsigned int LDO14_table[] = { |
| 207 | 1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 3300000, |
| 208 | }; |
| 209 | |
| 210 | static const unsigned int LDO14_suspend_table[] = { |
| 211 | 1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 2900000, |
| 212 | }; |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 213 | |
| 214 | static int pm8607_list_voltage(struct regulator_dev *rdev, unsigned index) |
| 215 | { |
| 216 | struct pm8607_regulator_info *info = rdev_get_drvdata(rdev); |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 217 | int ret = -EINVAL; |
| 218 | |
Axel Lin | d06563c | 2010-09-04 23:10:48 +0800 | [diff] [blame] | 219 | if (info->vol_table && (index < (1 << info->vol_nbits))) { |
Haojian Zhuang | 9f79e9d | 2010-05-04 09:54:51 -0400 | [diff] [blame] | 220 | ret = info->vol_table[index]; |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 221 | if (info->slope_double) |
| 222 | ret <<= 1; |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 223 | } |
| 224 | return ret; |
| 225 | } |
| 226 | |
| 227 | static int choose_voltage(struct regulator_dev *rdev, int min_uV, int max_uV) |
| 228 | { |
| 229 | struct pm8607_regulator_info *info = rdev_get_drvdata(rdev); |
Haojian Zhuang | 9f79e9d | 2010-05-04 09:54:51 -0400 | [diff] [blame] | 230 | int i, ret = -ENOENT; |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 231 | |
Haojian Zhuang | 9f79e9d | 2010-05-04 09:54:51 -0400 | [diff] [blame] | 232 | if (info->slope_double) { |
| 233 | min_uV = min_uV >> 1; |
| 234 | max_uV = max_uV >> 1; |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 235 | } |
Haojian Zhuang | 9f79e9d | 2010-05-04 09:54:51 -0400 | [diff] [blame] | 236 | if (info->vol_table) { |
Axel Lin | d06563c | 2010-09-04 23:10:48 +0800 | [diff] [blame] | 237 | for (i = 0; i < (1 << info->vol_nbits); i++) { |
Haojian Zhuang | 9f79e9d | 2010-05-04 09:54:51 -0400 | [diff] [blame] | 238 | if (!info->vol_table[i]) |
| 239 | break; |
| 240 | if ((min_uV <= info->vol_table[i]) |
| 241 | && (max_uV >= info->vol_table[i])) { |
| 242 | ret = i; |
| 243 | break; |
| 244 | } |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 245 | } |
Haojian Zhuang | 9f79e9d | 2010-05-04 09:54:51 -0400 | [diff] [blame] | 246 | } |
| 247 | if (ret < 0) |
| 248 | pr_err("invalid voltage range (%d %d) uV\n", min_uV, max_uV); |
| 249 | return ret; |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 250 | } |
| 251 | |
| 252 | static int pm8607_set_voltage(struct regulator_dev *rdev, |
Mark Brown | 3a93f2a | 2010-11-10 14:38:29 +0000 | [diff] [blame] | 253 | int min_uV, int max_uV, unsigned *selector) |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 254 | { |
| 255 | struct pm8607_regulator_info *info = rdev_get_drvdata(rdev); |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 256 | uint8_t val, mask; |
| 257 | int ret; |
| 258 | |
Haojian Zhuang | 9f79e9d | 2010-05-04 09:54:51 -0400 | [diff] [blame] | 259 | if (min_uV > max_uV) { |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 260 | pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV); |
| 261 | return -EINVAL; |
| 262 | } |
| 263 | |
| 264 | ret = choose_voltage(rdev, min_uV, max_uV); |
| 265 | if (ret < 0) |
| 266 | return -EINVAL; |
Mark Brown | 3a93f2a | 2010-11-10 14:38:29 +0000 | [diff] [blame] | 267 | *selector = ret; |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 268 | val = (uint8_t)(ret << info->vol_shift); |
| 269 | mask = ((1 << info->vol_nbits) - 1) << info->vol_shift; |
| 270 | |
Haojian Zhuang | 53dbab7 | 2010-01-08 06:01:24 -0500 | [diff] [blame] | 271 | ret = pm860x_set_bits(info->i2c, info->vol_reg, mask, val); |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 272 | if (ret) |
| 273 | return ret; |
| 274 | switch (info->desc.id) { |
| 275 | case PM8607_ID_BUCK1: |
| 276 | case PM8607_ID_BUCK3: |
Haojian Zhuang | 53dbab7 | 2010-01-08 06:01:24 -0500 | [diff] [blame] | 277 | ret = pm860x_set_bits(info->i2c, info->update_reg, |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 278 | 1 << info->update_bit, |
| 279 | 1 << info->update_bit); |
| 280 | break; |
| 281 | } |
| 282 | return ret; |
| 283 | } |
| 284 | |
| 285 | static int pm8607_get_voltage(struct regulator_dev *rdev) |
| 286 | { |
| 287 | struct pm8607_regulator_info *info = rdev_get_drvdata(rdev); |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 288 | uint8_t val, mask; |
| 289 | int ret; |
| 290 | |
Haojian Zhuang | 53dbab7 | 2010-01-08 06:01:24 -0500 | [diff] [blame] | 291 | ret = pm860x_reg_read(info->i2c, info->vol_reg); |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 292 | if (ret < 0) |
| 293 | return ret; |
| 294 | |
| 295 | mask = ((1 << info->vol_nbits) - 1) << info->vol_shift; |
| 296 | val = ((unsigned char)ret & mask) >> info->vol_shift; |
| 297 | |
| 298 | return pm8607_list_voltage(rdev, val); |
| 299 | } |
| 300 | |
| 301 | static int pm8607_enable(struct regulator_dev *rdev) |
| 302 | { |
| 303 | struct pm8607_regulator_info *info = rdev_get_drvdata(rdev); |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 304 | |
Haojian Zhuang | 53dbab7 | 2010-01-08 06:01:24 -0500 | [diff] [blame] | 305 | return pm860x_set_bits(info->i2c, info->enable_reg, |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 306 | 1 << info->enable_bit, |
| 307 | 1 << info->enable_bit); |
| 308 | } |
| 309 | |
| 310 | static int pm8607_disable(struct regulator_dev *rdev) |
| 311 | { |
| 312 | struct pm8607_regulator_info *info = rdev_get_drvdata(rdev); |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 313 | |
Haojian Zhuang | 53dbab7 | 2010-01-08 06:01:24 -0500 | [diff] [blame] | 314 | return pm860x_set_bits(info->i2c, info->enable_reg, |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 315 | 1 << info->enable_bit, 0); |
| 316 | } |
| 317 | |
| 318 | static int pm8607_is_enabled(struct regulator_dev *rdev) |
| 319 | { |
| 320 | struct pm8607_regulator_info *info = rdev_get_drvdata(rdev); |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 321 | int ret; |
| 322 | |
Haojian Zhuang | 53dbab7 | 2010-01-08 06:01:24 -0500 | [diff] [blame] | 323 | ret = pm860x_reg_read(info->i2c, info->enable_reg); |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 324 | if (ret < 0) |
| 325 | return ret; |
| 326 | |
| 327 | return !!((unsigned char)ret & (1 << info->enable_bit)); |
| 328 | } |
| 329 | |
| 330 | static struct regulator_ops pm8607_regulator_ops = { |
| 331 | .set_voltage = pm8607_set_voltage, |
| 332 | .get_voltage = pm8607_get_voltage, |
| 333 | .enable = pm8607_enable, |
| 334 | .disable = pm8607_disable, |
| 335 | .is_enabled = pm8607_is_enabled, |
| 336 | }; |
| 337 | |
Haojian Zhuang | 9f79e9d | 2010-05-04 09:54:51 -0400 | [diff] [blame] | 338 | #define PM8607_DVC(vreg, nbits, ureg, ubit, ereg, ebit) \ |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 339 | { \ |
| 340 | .desc = { \ |
Haojian Zhuang | 9f79e9d | 2010-05-04 09:54:51 -0400 | [diff] [blame] | 341 | .name = #vreg, \ |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 342 | .ops = &pm8607_regulator_ops, \ |
| 343 | .type = REGULATOR_VOLTAGE, \ |
Haojian Zhuang | 9f79e9d | 2010-05-04 09:54:51 -0400 | [diff] [blame] | 344 | .id = PM8607_ID_##vreg, \ |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 345 | .owner = THIS_MODULE, \ |
| 346 | }, \ |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 347 | .vol_reg = PM8607_##vreg, \ |
| 348 | .vol_shift = (0), \ |
| 349 | .vol_nbits = (nbits), \ |
| 350 | .update_reg = PM8607_##ureg, \ |
| 351 | .update_bit = (ubit), \ |
| 352 | .enable_reg = PM8607_##ereg, \ |
| 353 | .enable_bit = (ebit), \ |
| 354 | .slope_double = (0), \ |
Haojian Zhuang | 9f79e9d | 2010-05-04 09:54:51 -0400 | [diff] [blame] | 355 | .vol_table = (unsigned int *)&vreg##_table, \ |
| 356 | .vol_suspend = (unsigned int *)&vreg##_suspend_table, \ |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 357 | } |
| 358 | |
Haojian Zhuang | 9f79e9d | 2010-05-04 09:54:51 -0400 | [diff] [blame] | 359 | #define PM8607_LDO(_id, vreg, shift, nbits, ereg, ebit) \ |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 360 | { \ |
| 361 | .desc = { \ |
| 362 | .name = "LDO" #_id, \ |
| 363 | .ops = &pm8607_regulator_ops, \ |
| 364 | .type = REGULATOR_VOLTAGE, \ |
| 365 | .id = PM8607_ID_LDO##_id, \ |
| 366 | .owner = THIS_MODULE, \ |
| 367 | }, \ |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 368 | .vol_reg = PM8607_##vreg, \ |
| 369 | .vol_shift = (shift), \ |
| 370 | .vol_nbits = (nbits), \ |
| 371 | .enable_reg = PM8607_##ereg, \ |
| 372 | .enable_bit = (ebit), \ |
| 373 | .slope_double = (0), \ |
Haojian Zhuang | 9f79e9d | 2010-05-04 09:54:51 -0400 | [diff] [blame] | 374 | .vol_table = (unsigned int *)&LDO##_id##_table, \ |
| 375 | .vol_suspend = (unsigned int *)&LDO##_id##_suspend_table, \ |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 376 | } |
| 377 | |
| 378 | static struct pm8607_regulator_info pm8607_regulator_info[] = { |
Haojian Zhuang | 9f79e9d | 2010-05-04 09:54:51 -0400 | [diff] [blame] | 379 | PM8607_DVC(BUCK1, 6, GO, 0, SUPPLIES_EN11, 0), |
| 380 | PM8607_DVC(BUCK2, 6, GO, 1, SUPPLIES_EN11, 1), |
| 381 | PM8607_DVC(BUCK3, 6, GO, 2, SUPPLIES_EN11, 2), |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 382 | |
Haojian Zhuang | 9f79e9d | 2010-05-04 09:54:51 -0400 | [diff] [blame] | 383 | PM8607_LDO( 1, LDO1, 0, 2, SUPPLIES_EN11, 3), |
| 384 | PM8607_LDO( 2, LDO2, 0, 3, SUPPLIES_EN11, 4), |
| 385 | PM8607_LDO( 3, LDO3, 0, 3, SUPPLIES_EN11, 5), |
| 386 | PM8607_LDO( 4, LDO4, 0, 3, SUPPLIES_EN11, 6), |
| 387 | PM8607_LDO( 5, LDO5, 0, 2, SUPPLIES_EN11, 7), |
| 388 | PM8607_LDO( 6, LDO6, 0, 3, SUPPLIES_EN12, 0), |
| 389 | PM8607_LDO( 7, LDO7, 0, 3, SUPPLIES_EN12, 1), |
| 390 | PM8607_LDO( 8, LDO8, 0, 3, SUPPLIES_EN12, 2), |
| 391 | PM8607_LDO( 9, LDO9, 0, 3, SUPPLIES_EN12, 3), |
| 392 | PM8607_LDO(10, LDO10, 0, 3, SUPPLIES_EN12, 4), |
| 393 | PM8607_LDO(12, LDO12, 0, 4, SUPPLIES_EN12, 5), |
| 394 | PM8607_LDO(13, VIBRATOR_SET, 1, 3, VIBRATOR_SET, 0), |
| 395 | PM8607_LDO(14, LDO14, 0, 4, SUPPLIES_EN12, 6), |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 396 | }; |
| 397 | |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 398 | static int __devinit pm8607_regulator_probe(struct platform_device *pdev) |
| 399 | { |
Haojian Zhuang | 53dbab7 | 2010-01-08 06:01:24 -0500 | [diff] [blame] | 400 | struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent); |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 401 | struct pm8607_regulator_info *info = NULL; |
Haojian Zhuang | 586e1a1 | 2011-05-06 17:21:23 +0800 | [diff] [blame] | 402 | struct regulator_init_data *pdata = pdev->dev.platform_data; |
| 403 | struct resource *res; |
Haojian Zhuang | 22aad00 | 2011-03-07 23:43:11 +0800 | [diff] [blame] | 404 | int i; |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 405 | |
Haojian Zhuang | 586e1a1 | 2011-05-06 17:21:23 +0800 | [diff] [blame] | 406 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); |
| 407 | if (res == NULL) { |
| 408 | dev_err(&pdev->dev, "No I/O resource!\n"); |
Haojian Zhuang | 22aad00 | 2011-03-07 23:43:11 +0800 | [diff] [blame] | 409 | return -EINVAL; |
Haojian Zhuang | 586e1a1 | 2011-05-06 17:21:23 +0800 | [diff] [blame] | 410 | } |
Haojian Zhuang | 22aad00 | 2011-03-07 23:43:11 +0800 | [diff] [blame] | 411 | for (i = 0; i < ARRAY_SIZE(pm8607_regulator_info); i++) { |
| 412 | info = &pm8607_regulator_info[i]; |
Haojian Zhuang | 586e1a1 | 2011-05-06 17:21:23 +0800 | [diff] [blame] | 413 | if (info->desc.id == res->start) |
Haojian Zhuang | 22aad00 | 2011-03-07 23:43:11 +0800 | [diff] [blame] | 414 | break; |
| 415 | } |
Axel Lin | 99cd25c | 2011-08-04 16:18:11 +0800 | [diff] [blame] | 416 | if (i == ARRAY_SIZE(pm8607_regulator_info)) { |
Randy Dunlap | 0996910 | 2011-05-26 10:16:15 -0700 | [diff] [blame] | 417 | dev_err(&pdev->dev, "Failed to find regulator %llu\n", |
| 418 | (unsigned long long)res->start); |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 419 | return -EINVAL; |
| 420 | } |
Haojian Zhuang | 53dbab7 | 2010-01-08 06:01:24 -0500 | [diff] [blame] | 421 | info->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion; |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 422 | info->chip = chip; |
| 423 | |
Haojian Zhuang | 22aad00 | 2011-03-07 23:43:11 +0800 | [diff] [blame] | 424 | /* check DVC ramp slope double */ |
Haojian Zhuang | 586e1a1 | 2011-05-06 17:21:23 +0800 | [diff] [blame] | 425 | if ((i == PM8607_ID_BUCK3) && info->chip->buck3_double) |
| 426 | info->slope_double = 1; |
Haojian Zhuang | 22aad00 | 2011-03-07 23:43:11 +0800 | [diff] [blame] | 427 | |
Haojian Zhuang | 586e1a1 | 2011-05-06 17:21:23 +0800 | [diff] [blame] | 428 | /* replace driver_data with info */ |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 429 | info->regulator = regulator_register(&info->desc, &pdev->dev, |
Rajendra Nayak | 2c043bc | 2011-11-18 16:47:19 +0530 | [diff] [blame^] | 430 | pdata, info, NULL); |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 431 | if (IS_ERR(info->regulator)) { |
| 432 | dev_err(&pdev->dev, "failed to register regulator %s\n", |
| 433 | info->desc.name); |
| 434 | return PTR_ERR(info->regulator); |
| 435 | } |
| 436 | |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 437 | platform_set_drvdata(pdev, info); |
| 438 | return 0; |
| 439 | } |
| 440 | |
| 441 | static int __devexit pm8607_regulator_remove(struct platform_device *pdev) |
| 442 | { |
| 443 | struct pm8607_regulator_info *info = platform_get_drvdata(pdev); |
| 444 | |
Haojian Zhuang | 192bbb9 | 2010-04-29 13:33:50 -0400 | [diff] [blame] | 445 | platform_set_drvdata(pdev, NULL); |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 446 | regulator_unregister(info->regulator); |
| 447 | return 0; |
| 448 | } |
| 449 | |
Haojian Zhuang | 192bbb9 | 2010-04-29 13:33:50 -0400 | [diff] [blame] | 450 | static struct platform_driver pm8607_regulator_driver = { |
| 451 | .driver = { |
| 452 | .name = "88pm860x-regulator", |
| 453 | .owner = THIS_MODULE, |
| 454 | }, |
| 455 | .probe = pm8607_regulator_probe, |
| 456 | .remove = __devexit_p(pm8607_regulator_remove), |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 457 | }; |
| 458 | |
| 459 | static int __init pm8607_regulator_init(void) |
| 460 | { |
Haojian Zhuang | 192bbb9 | 2010-04-29 13:33:50 -0400 | [diff] [blame] | 461 | return platform_driver_register(&pm8607_regulator_driver); |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 462 | } |
| 463 | subsys_initcall(pm8607_regulator_init); |
| 464 | |
| 465 | static void __exit pm8607_regulator_exit(void) |
| 466 | { |
Haojian Zhuang | 192bbb9 | 2010-04-29 13:33:50 -0400 | [diff] [blame] | 467 | platform_driver_unregister(&pm8607_regulator_driver); |
Haojian Zhuang | be0e2d3 | 2009-10-08 02:03:57 -0400 | [diff] [blame] | 468 | } |
| 469 | module_exit(pm8607_regulator_exit); |
| 470 | |
| 471 | MODULE_LICENSE("GPL"); |
| 472 | MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>"); |
| 473 | MODULE_DESCRIPTION("Regulator Driver for Marvell 88PM8607 PMIC"); |
| 474 | MODULE_ALIAS("platform:88pm8607-regulator"); |