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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 | // SPDX-License-Identifier: GPL-2.0+ /* * Copyright (C) 2015 Google, Inc */ #include <fdtdec.h> #include <errno.h> #include <dm.h> #include <power/pmic.h> #include <power/regulator.h> #include <power/s5m8767.h> static const struct sec_voltage_desc buck_v1 = { .max = 2225000, .min = 650000, .step = 6250, }; static const struct sec_voltage_desc buck_v2 = { .max = 1600000, .min = 600000, .step = 6250, }; static const struct sec_voltage_desc buck_v3 = { .max = 3000000, .min = 750000, .step = 12500, }; static const struct sec_voltage_desc ldo_v1 = { .max = 3950000, .min = 800000, .step = 50000, }; static const struct sec_voltage_desc ldo_v2 = { .max = 2375000, .min = 800000, .step = 25000, }; static const struct s5m8767_para buck_param[] = { /* * | voltage ----| | enable -| voltage * regnum addr bpos mask addr on desc */ {S5M8767_BUCK1, 0x33, 0x0, 0xff, 0x32, 0x3, &buck_v1}, {S5M8767_BUCK2, 0x35, 0x0, 0xff, 0x34, 0x1, &buck_v2}, {S5M8767_BUCK3, 0x3e, 0x0, 0xff, 0x3d, 0x1, &buck_v2}, {S5M8767_BUCK4, 0x47, 0x0, 0xff, 0x46, 0x1, &buck_v2}, {S5M8767_BUCK5, 0x50, 0x0, 0xff, 0x4f, 0x3, &buck_v1}, {S5M8767_BUCK6, 0x55, 0x0, 0xff, 0x54, 0x3, &buck_v1}, {S5M8767_BUCK7, 0x57, 0x0, 0xff, 0x56, 0x3, &buck_v3}, {S5M8767_BUCK8, 0x59, 0x0, 0xff, 0x58, 0x3, &buck_v3}, {S5M8767_BUCK9, 0x5b, 0x0, 0xff, 0x5a, 0x3, &buck_v3}, }; static const struct s5m8767_para ldo_param[] = { {S5M8767_LDO1, 0x5c, 0x0, 0x3f, 0x5c, 0x3, &ldo_v2}, {S5M8767_LDO2, 0x5d, 0x0, 0x3f, 0x5d, 0x1, &ldo_v2}, {S5M8767_LDO3, 0x61, 0x0, 0x3f, 0x61, 0x3, &ldo_v1}, {S5M8767_LDO4, 0x62, 0x0, 0x3f, 0x62, 0x3, &ldo_v1}, {S5M8767_LDO5, 0x63, 0x0, 0x3f, 0x63, 0x3, &ldo_v1}, {S5M8767_LDO6, 0x64, 0x0, 0x3f, 0x64, 0x1, &ldo_v2}, {S5M8767_LDO7, 0x65, 0x0, 0x3f, 0x65, 0x1, &ldo_v2}, {S5M8767_LDO8, 0x66, 0x0, 0x3f, 0x66, 0x1, &ldo_v2}, {S5M8767_LDO9, 0x67, 0x0, 0x3f, 0x67, 0x3, &ldo_v1}, {S5M8767_LDO10, 0x68, 0x0, 0x3f, 0x68, 0x1, &ldo_v1}, {S5M8767_LDO11, 0x69, 0x0, 0x3f, 0x69, 0x1, &ldo_v1}, {S5M8767_LDO12, 0x6a, 0x0, 0x3f, 0x6a, 0x1, &ldo_v1}, {S5M8767_LDO13, 0x6b, 0x0, 0x3f, 0x6b, 0x3, &ldo_v1}, {S5M8767_LDO14, 0x6c, 0x0, 0x3f, 0x6c, 0x1, &ldo_v1}, {S5M8767_LDO15, 0x6d, 0x0, 0x3f, 0x6d, 0x1, &ldo_v2}, {S5M8767_LDO16, 0x6e, 0x0, 0x3f, 0x6e, 0x1, &ldo_v1}, {S5M8767_LDO17, 0x6f, 0x0, 0x3f, 0x6f, 0x3, &ldo_v1}, {S5M8767_LDO18, 0x70, 0x0, 0x3f, 0x70, 0x3, &ldo_v1}, {S5M8767_LDO19, 0x71, 0x0, 0x3f, 0x71, 0x3, &ldo_v1}, {S5M8767_LDO20, 0x72, 0x0, 0x3f, 0x72, 0x3, &ldo_v1}, {S5M8767_LDO21, 0x73, 0x0, 0x3f, 0x73, 0x3, &ldo_v1}, {S5M8767_LDO22, 0x74, 0x0, 0x3f, 0x74, 0x3, &ldo_v1}, {S5M8767_LDO23, 0x75, 0x0, 0x3f, 0x75, 0x3, &ldo_v1}, {S5M8767_LDO24, 0x76, 0x0, 0x3f, 0x76, 0x3, &ldo_v1}, {S5M8767_LDO25, 0x77, 0x0, 0x3f, 0x77, 0x3, &ldo_v1}, {S5M8767_LDO26, 0x78, 0x0, 0x3f, 0x78, 0x3, &ldo_v1}, {S5M8767_LDO27, 0x79, 0x0, 0x3f, 0x79, 0x3, &ldo_v1}, {S5M8767_LDO28, 0x7a, 0x0, 0x3f, 0x7a, 0x3, &ldo_v1}, }; enum { ENABLE_SHIFT = 6, ENABLE_MASK = 3, }; static int reg_get_value(struct udevice *dev, const struct s5m8767_para *param) { const struct sec_voltage_desc *desc; int ret, uv, val; ret = pmic_reg_read(dev->parent, param->vol_addr); if (ret < 0) return ret; desc = param->vol; val = (ret >> param->vol_bitpos) & param->vol_bitmask; uv = desc->min + val * desc->step; return uv; } static int reg_set_value(struct udevice *dev, const struct s5m8767_para *param, int uv) { const struct sec_voltage_desc *desc; int ret, val; desc = param->vol; if (uv < desc->min || uv > desc->max) return -EINVAL; val = (uv - desc->min) / desc->step; val = (val & param->vol_bitmask) << param->vol_bitpos; ret = pmic_clrsetbits(dev->parent, param->vol_addr, param->vol_bitmask << param->vol_bitpos, val); return ret; } static int s5m8767_ldo_probe(struct udevice *dev) { struct dm_regulator_uclass_plat *uc_pdata; uc_pdata = dev_get_uclass_plat(dev); uc_pdata->type = REGULATOR_TYPE_LDO; uc_pdata->mode_count = 0; return 0; } static int ldo_get_value(struct udevice *dev) { int ldo = dev->driver_data; return reg_get_value(dev, &ldo_param[ldo]); } static int ldo_set_value(struct udevice *dev, int uv) { int ldo = dev->driver_data; return reg_set_value(dev, &ldo_param[ldo], uv); } static int reg_get_enable(struct udevice *dev, const struct s5m8767_para *param) { bool enable; int ret; ret = pmic_reg_read(dev->parent, param->reg_enaddr); if (ret < 0) return ret; enable = (ret >> ENABLE_SHIFT) & ENABLE_MASK; return enable; } static int reg_set_enable(struct udevice *dev, const struct s5m8767_para *param, bool enable) { int ret; ret = pmic_reg_read(dev->parent, param->reg_enaddr); if (ret < 0) return ret; ret = pmic_clrsetbits(dev->parent, param->reg_enaddr, ENABLE_MASK << ENABLE_SHIFT, enable ? param->reg_enbiton << ENABLE_SHIFT : 0); return ret; } static int ldo_get_enable(struct udevice *dev) { int ldo = dev->driver_data; return reg_get_enable(dev, &ldo_param[ldo]); } static int ldo_set_enable(struct udevice *dev, bool enable) { int ldo = dev->driver_data; return reg_set_enable(dev, &ldo_param[ldo], enable); } static int s5m8767_buck_probe(struct udevice *dev) { struct dm_regulator_uclass_plat *uc_pdata; uc_pdata = dev_get_uclass_plat(dev); uc_pdata->type = REGULATOR_TYPE_BUCK; uc_pdata->mode_count = 0; return 0; } static int buck_get_value(struct udevice *dev) { int buck = dev->driver_data; return reg_get_value(dev, &buck_param[buck]); } static int buck_set_value(struct udevice *dev, int uv) { int buck = dev->driver_data; return reg_set_value(dev, &buck_param[buck], uv); } static int buck_get_enable(struct udevice *dev) { int buck = dev->driver_data; return reg_get_enable(dev, &buck_param[buck]); } static int buck_set_enable(struct udevice *dev, bool enable) { int buck = dev->driver_data; return reg_set_enable(dev, &buck_param[buck], enable); } static const struct dm_regulator_ops s5m8767_ldo_ops = { .get_value = ldo_get_value, .set_value = ldo_set_value, .get_enable = ldo_get_enable, .set_enable = ldo_set_enable, }; U_BOOT_DRIVER(s5m8767_ldo) = { .name = S5M8767_LDO_DRIVER, .id = UCLASS_REGULATOR, .ops = &s5m8767_ldo_ops, .probe = s5m8767_ldo_probe, }; static const struct dm_regulator_ops s5m8767_buck_ops = { .get_value = buck_get_value, .set_value = buck_set_value, .get_enable = buck_get_enable, .set_enable = buck_set_enable, }; U_BOOT_DRIVER(s5m8767_buck) = { .name = S5M8767_BUCK_DRIVER, .id = UCLASS_REGULATOR, .ops = &s5m8767_buck_ops, .probe = s5m8767_buck_probe, }; |