| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Steve Twiss | 5991 | 95.23% | 3 | 27.27% |
| Axel Lin | 219 | 3.48% | 4 | 36.36% |
| Marco Felsch | 45 | 0.72% | 1 | 9.09% |
| Felix Riemann | 26 | 0.41% | 1 | 9.09% |
| Gustavo A. R. Silva | 8 | 0.13% | 1 | 9.09% |
| Julia Lawall | 2 | 0.03% | 1 | 9.09% |
| Total | 6291 | 11 |
// SPDX-License-Identifier: GPL-2.0+ // // Regulator device driver for DA9061 and DA9062. // Copyright (C) 2015-2017 Dialog Semiconductor #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> #include <linux/err.h> #include <linux/slab.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/regmap.h> #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> #include <linux/regulator/of_regulator.h> #include <linux/mfd/da9062/core.h> #include <linux/mfd/da9062/registers.h> /* Regulator IDs */ enum { DA9061_ID_BUCK1, DA9061_ID_BUCK2, DA9061_ID_BUCK3, DA9061_ID_LDO1, DA9061_ID_LDO2, DA9061_ID_LDO3, DA9061_ID_LDO4, DA9061_MAX_REGULATORS, }; enum { DA9062_ID_BUCK1, DA9062_ID_BUCK2, DA9062_ID_BUCK3, DA9062_ID_BUCK4, DA9062_ID_LDO1, DA9062_ID_LDO2, DA9062_ID_LDO3, DA9062_ID_LDO4, DA9062_MAX_REGULATORS, }; /* Regulator capabilities and registers description */ struct da9062_regulator_info { struct regulator_desc desc; /* Main register fields */ struct reg_field mode; struct reg_field suspend; struct reg_field sleep; struct reg_field suspend_sleep; unsigned int suspend_vsel_reg; /* Event detection bit */ struct reg_field oc_event; }; /* Single regulator settings */ struct da9062_regulator { struct regulator_desc desc; struct regulator_dev *rdev; struct da9062 *hw; const struct da9062_regulator_info *info; struct regmap_field *mode; struct regmap_field *suspend; struct regmap_field *sleep; struct regmap_field *suspend_sleep; }; /* Encapsulates all information for the regulators driver */ struct da9062_regulators { int irq_ldo_lim; unsigned n_regulators; /* Array size to be defined during init. Keep at end. */ struct da9062_regulator regulator[0]; }; /* BUCK modes */ enum { BUCK_MODE_MANUAL, /* 0 */ BUCK_MODE_SLEEP, /* 1 */ BUCK_MODE_SYNC, /* 2 */ BUCK_MODE_AUTO /* 3 */ }; /* Regulator operations */ /* Current limits array (in uA) * - DA9061_ID_[BUCK1|BUCK3] * - DA9062_ID_[BUCK1|BUCK2|BUCK4] * Entry indexes corresponds to register values. */ static const unsigned int da9062_buck_a_limits[] = { 500000, 600000, 700000, 800000, 900000, 1000000, 1100000, 1200000, 1300000, 1400000, 1500000, 1600000, 1700000, 1800000, 1900000, 2000000 }; /* Current limits array (in uA) * - DA9061_ID_BUCK2 * - DA9062_ID_BUCK3 * Entry indexes corresponds to register values. */ static const unsigned int da9062_buck_b_limits[] = { 1500000, 1600000, 1700000, 1800000, 1900000, 2000000, 2100000, 2200000, 2300000, 2400000, 2500000, 2600000, 2700000, 2800000, 2900000, 3000000 }; static int da9062_buck_set_mode(struct regulator_dev *rdev, unsigned mode) { struct da9062_regulator *regl = rdev_get_drvdata(rdev); unsigned val; switch (mode) { case REGULATOR_MODE_FAST: val = BUCK_MODE_SYNC; break; case REGULATOR_MODE_NORMAL: val = BUCK_MODE_AUTO; break; case REGULATOR_MODE_STANDBY: val = BUCK_MODE_SLEEP; break; default: return -EINVAL; } return regmap_field_write(regl->mode, val); } /* * Bucks use single mode register field for normal operation * and suspend state. * There are 3 modes to map to: FAST, NORMAL, and STANDBY. */ static unsigned da9062_buck_get_mode(struct regulator_dev *rdev) { struct da9062_regulator *regl = rdev_get_drvdata(rdev); unsigned int val, mode = 0; int ret; ret = regmap_field_read(regl->mode, &val); if (ret < 0) return ret; switch (val) { default: case BUCK_MODE_MANUAL: mode = REGULATOR_MODE_FAST | REGULATOR_MODE_STANDBY; /* Sleep flag bit decides the mode */ break; case BUCK_MODE_SLEEP: return REGULATOR_MODE_STANDBY; case BUCK_MODE_SYNC: return REGULATOR_MODE_FAST; case BUCK_MODE_AUTO: return REGULATOR_MODE_NORMAL; } ret = regmap_field_read(regl->sleep, &val); if (ret < 0) return 0; if (val) mode &= REGULATOR_MODE_STANDBY; else mode &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_FAST; return mode; } /* * LDOs use sleep flags - one for normal and one for suspend state. * There are 2 modes to map to: NORMAL and STANDBY (sleep) for each state. */ static int da9062_ldo_set_mode(struct regulator_dev *rdev, unsigned mode) { struct da9062_regulator *regl = rdev_get_drvdata(rdev); unsigned val; switch (mode) { case REGULATOR_MODE_NORMAL: val = 0; break; case REGULATOR_MODE_STANDBY: val = 1; break; default: return -EINVAL; } return regmap_field_write(regl->sleep, val); } static unsigned da9062_ldo_get_mode(struct regulator_dev *rdev) { struct da9062_regulator *regl = rdev_get_drvdata(rdev); int ret, val; ret = regmap_field_read(regl->sleep, &val); if (ret < 0) return 0; if (val) return REGULATOR_MODE_STANDBY; else return REGULATOR_MODE_NORMAL; } static int da9062_buck_get_status(struct regulator_dev *rdev) { int ret = regulator_is_enabled_regmap(rdev); if (ret == 0) { ret = REGULATOR_STATUS_OFF; } else if (ret > 0) { ret = da9062_buck_get_mode(rdev); if (ret > 0) ret = regulator_mode_to_status(ret); else if (ret == 0) ret = -EIO; } return ret; } static int da9062_ldo_get_status(struct regulator_dev *rdev) { int ret = regulator_is_enabled_regmap(rdev); if (ret == 0) { ret = REGULATOR_STATUS_OFF; } else if (ret > 0) { ret = da9062_ldo_get_mode(rdev); if (ret > 0) ret = regulator_mode_to_status(ret); else if (ret == 0) ret = -EIO; } return ret; } static int da9062_set_suspend_voltage(struct regulator_dev *rdev, int uv) { struct da9062_regulator *regl = rdev_get_drvdata(rdev); const struct da9062_regulator_info *rinfo = regl->info; int ret, sel; sel = regulator_map_voltage_linear(rdev, uv, uv); if (sel < 0) return sel; sel <<= ffs(rdev->desc->vsel_mask) - 1; ret = regmap_update_bits(regl->hw->regmap, rinfo->suspend_vsel_reg, rdev->desc->vsel_mask, sel); return ret; } static int da9062_suspend_enable(struct regulator_dev *rdev) { struct da9062_regulator *regl = rdev_get_drvdata(rdev); return regmap_field_write(regl->suspend, 1); } static int da9062_suspend_disable(struct regulator_dev *rdev) { struct da9062_regulator *regl = rdev_get_drvdata(rdev); return regmap_field_write(regl->suspend, 0); } static int da9062_buck_set_suspend_mode(struct regulator_dev *rdev, unsigned mode) { struct da9062_regulator *regl = rdev_get_drvdata(rdev); int val; switch (mode) { case REGULATOR_MODE_FAST: val = BUCK_MODE_SYNC; break; case REGULATOR_MODE_NORMAL: val = BUCK_MODE_AUTO; break; case REGULATOR_MODE_STANDBY: val = BUCK_MODE_SLEEP; break; default: return -EINVAL; } return regmap_field_write(regl->mode, val); } static int da9062_ldo_set_suspend_mode(struct regulator_dev *rdev, unsigned mode) { struct da9062_regulator *regl = rdev_get_drvdata(rdev); unsigned val; switch (mode) { case REGULATOR_MODE_NORMAL: val = 0; break; case REGULATOR_MODE_STANDBY: val = 1; break; default: return -EINVAL; } return regmap_field_write(regl->suspend_sleep, val); } static const struct regulator_ops da9062_buck_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, .list_voltage = regulator_list_voltage_linear, .set_current_limit = regulator_set_current_limit_regmap, .get_current_limit = regulator_get_current_limit_regmap, .set_mode = da9062_buck_set_mode, .get_mode = da9062_buck_get_mode, .get_status = da9062_buck_get_status, .set_suspend_voltage = da9062_set_suspend_voltage, .set_suspend_enable = da9062_suspend_enable, .set_suspend_disable = da9062_suspend_disable, .set_suspend_mode = da9062_buck_set_suspend_mode, }; static const struct regulator_ops da9062_ldo_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, .list_voltage = regulator_list_voltage_linear, .set_mode = da9062_ldo_set_mode, .get_mode = da9062_ldo_get_mode, .get_status = da9062_ldo_get_status, .set_suspend_voltage = da9062_set_suspend_voltage, .set_suspend_enable = da9062_suspend_enable, .set_suspend_disable = da9062_suspend_disable, .set_suspend_mode = da9062_ldo_set_suspend_mode, }; /* DA9061 Regulator information */ static const struct da9062_regulator_info local_da9061_regulator_info[] = { { .desc.id = DA9061_ID_BUCK1, .desc.name = "DA9061 BUCK1", .desc.of_match = of_match_ptr("buck1"), .desc.regulators_node = of_match_ptr("regulators"), .desc.ops = &da9062_buck_ops, .desc.min_uV = (300) * 1000, .desc.uV_step = (10) * 1000, .desc.n_voltages = ((1570) - (300))/(10) + 1, .desc.curr_table = da9062_buck_a_limits, .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits), .desc.csel_reg = DA9062AA_BUCK_ILIM_C, .desc.csel_mask = DA9062AA_BUCK1_ILIM_MASK, .desc.enable_reg = DA9062AA_BUCK1_CONT, .desc.enable_mask = DA9062AA_BUCK1_EN_MASK, .desc.vsel_reg = DA9062AA_VBUCK1_A, .desc.vsel_mask = DA9062AA_VBUCK1_A_MASK, .desc.linear_min_sel = 0, .sleep = REG_FIELD(DA9062AA_VBUCK1_A, __builtin_ffs((int)DA9062AA_BUCK1_SL_A_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_BUCK1_SL_A_MASK)) - 1), .suspend_sleep = REG_FIELD(DA9062AA_VBUCK1_B, __builtin_ffs((int)DA9062AA_BUCK1_SL_B_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_BUCK1_SL_B_MASK)) - 1), .suspend_vsel_reg = DA9062AA_VBUCK1_B, .mode = REG_FIELD(DA9062AA_BUCK1_CFG, __builtin_ffs((int)DA9062AA_BUCK1_MODE_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_BUCK1_MODE_MASK)) - 1), .suspend = REG_FIELD(DA9062AA_BUCK1_CONT, __builtin_ffs((int)DA9062AA_BUCK1_CONF_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz(DA9062AA_BUCK1_CONF_MASK) - 1), }, { .desc.id = DA9061_ID_BUCK2, .desc.name = "DA9061 BUCK2", .desc.of_match = of_match_ptr("buck2"), .desc.regulators_node = of_match_ptr("regulators"), .desc.ops = &da9062_buck_ops, .desc.min_uV = (800) * 1000, .desc.uV_step = (20) * 1000, .desc.n_voltages = ((3340) - (800))/(20) + 1, .desc.curr_table = da9062_buck_b_limits, .desc.n_current_limits = ARRAY_SIZE(da9062_buck_b_limits), .desc.csel_reg = DA9062AA_BUCK_ILIM_A, .desc.csel_mask = DA9062AA_BUCK3_ILIM_MASK, .desc.enable_reg = DA9062AA_BUCK3_CONT, .desc.enable_mask = DA9062AA_BUCK3_EN_MASK, .desc.vsel_reg = DA9062AA_VBUCK3_A, .desc.vsel_mask = DA9062AA_VBUCK3_A_MASK, .desc.linear_min_sel = 0, .sleep = REG_FIELD(DA9062AA_VBUCK3_A, __builtin_ffs((int)DA9062AA_BUCK3_SL_A_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_BUCK3_SL_A_MASK)) - 1), .suspend_sleep = REG_FIELD(DA9062AA_VBUCK3_B, __builtin_ffs((int)DA9062AA_BUCK3_SL_B_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_BUCK3_SL_B_MASK)) - 1), .suspend_vsel_reg = DA9062AA_VBUCK3_B, .mode = REG_FIELD(DA9062AA_BUCK3_CFG, __builtin_ffs((int)DA9062AA_BUCK3_MODE_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_BUCK3_MODE_MASK)) - 1), .suspend = REG_FIELD(DA9062AA_BUCK3_CONT, __builtin_ffs((int)DA9062AA_BUCK3_CONF_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz(DA9062AA_BUCK3_CONF_MASK) - 1), }, { .desc.id = DA9061_ID_BUCK3, .desc.name = "DA9061 BUCK3", .desc.of_match = of_match_ptr("buck3"), .desc.regulators_node = of_match_ptr("regulators"), .desc.ops = &da9062_buck_ops, .desc.min_uV = (530) * 1000, .desc.uV_step = (10) * 1000, .desc.n_voltages = ((1800) - (530))/(10) + 1, .desc.curr_table = da9062_buck_a_limits, .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits), .desc.csel_reg = DA9062AA_BUCK_ILIM_B, .desc.csel_mask = DA9062AA_BUCK4_ILIM_MASK, .desc.enable_reg = DA9062AA_BUCK4_CONT, .desc.enable_mask = DA9062AA_BUCK4_EN_MASK, .desc.vsel_reg = DA9062AA_VBUCK4_A, .desc.vsel_mask = DA9062AA_VBUCK4_A_MASK, .desc.linear_min_sel = 0, .sleep = REG_FIELD(DA9062AA_VBUCK4_A, __builtin_ffs((int)DA9062AA_BUCK4_SL_A_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_BUCK4_SL_A_MASK)) - 1), .suspend_sleep = REG_FIELD(DA9062AA_VBUCK4_B, __builtin_ffs((int)DA9062AA_BUCK4_SL_B_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_BUCK4_SL_B_MASK)) - 1), .suspend_vsel_reg = DA9062AA_VBUCK4_B, .mode = REG_FIELD(DA9062AA_BUCK4_CFG, __builtin_ffs((int)DA9062AA_BUCK4_MODE_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_BUCK4_MODE_MASK)) - 1), .suspend = REG_FIELD(DA9062AA_BUCK4_CONT, __builtin_ffs((int)DA9062AA_BUCK4_CONF_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz(DA9062AA_BUCK4_CONF_MASK) - 1), }, { .desc.id = DA9061_ID_LDO1, .desc.name = "DA9061 LDO1", .desc.of_match = of_match_ptr("ldo1"), .desc.regulators_node = of_match_ptr("regulators"), .desc.ops = &da9062_ldo_ops, .desc.min_uV = (900) * 1000, .desc.uV_step = (50) * 1000, .desc.n_voltages = ((3600) - (900))/(50) + 1 + DA9062AA_VLDO_A_MIN_SEL, .desc.enable_reg = DA9062AA_LDO1_CONT, .desc.enable_mask = DA9062AA_LDO1_EN_MASK, .desc.vsel_reg = DA9062AA_VLDO1_A, .desc.vsel_mask = DA9062AA_VLDO1_A_MASK, .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL, .sleep = REG_FIELD(DA9062AA_VLDO1_A, __builtin_ffs((int)DA9062AA_LDO1_SL_A_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO1_SL_A_MASK)) - 1), .suspend_sleep = REG_FIELD(DA9062AA_VLDO1_B, __builtin_ffs((int)DA9062AA_LDO1_SL_B_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO1_SL_B_MASK)) - 1), .suspend_vsel_reg = DA9062AA_VLDO1_B, .suspend = REG_FIELD(DA9062AA_LDO1_CONT, __builtin_ffs((int)DA9062AA_LDO1_CONF_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz(DA9062AA_LDO1_CONF_MASK) - 1), .oc_event = REG_FIELD(DA9062AA_STATUS_D, __builtin_ffs((int)DA9062AA_LDO1_ILIM_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO1_ILIM_MASK)) - 1), }, { .desc.id = DA9061_ID_LDO2, .desc.name = "DA9061 LDO2", .desc.of_match = of_match_ptr("ldo2"), .desc.regulators_node = of_match_ptr("regulators"), .desc.ops = &da9062_ldo_ops, .desc.min_uV = (900) * 1000, .desc.uV_step = (50) * 1000, .desc.n_voltages = ((3600) - (900))/(50) + 1 + DA9062AA_VLDO_A_MIN_SEL, .desc.enable_reg = DA9062AA_LDO2_CONT, .desc.enable_mask = DA9062AA_LDO2_EN_MASK, .desc.vsel_reg = DA9062AA_VLDO2_A, .desc.vsel_mask = DA9062AA_VLDO2_A_MASK, .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL, .sleep = REG_FIELD(DA9062AA_VLDO2_A, __builtin_ffs((int)DA9062AA_LDO2_SL_A_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO2_SL_A_MASK)) - 1), .suspend_sleep = REG_FIELD(DA9062AA_VLDO2_B, __builtin_ffs((int)DA9062AA_LDO2_SL_B_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO2_SL_B_MASK)) - 1), .suspend_vsel_reg = DA9062AA_VLDO2_B, .suspend = REG_FIELD(DA9062AA_LDO2_CONT, __builtin_ffs((int)DA9062AA_LDO2_CONF_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz(DA9062AA_LDO2_CONF_MASK) - 1), .oc_event = REG_FIELD(DA9062AA_STATUS_D, __builtin_ffs((int)DA9062AA_LDO2_ILIM_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO2_ILIM_MASK)) - 1), }, { .desc.id = DA9061_ID_LDO3, .desc.name = "DA9061 LDO3", .desc.of_match = of_match_ptr("ldo3"), .desc.regulators_node = of_match_ptr("regulators"), .desc.ops = &da9062_ldo_ops, .desc.min_uV = (900) * 1000, .desc.uV_step = (50) * 1000, .desc.n_voltages = ((3600) - (900))/(50) + 1 + DA9062AA_VLDO_A_MIN_SEL, .desc.enable_reg = DA9062AA_LDO3_CONT, .desc.enable_mask = DA9062AA_LDO3_EN_MASK, .desc.vsel_reg = DA9062AA_VLDO3_A, .desc.vsel_mask = DA9062AA_VLDO3_A_MASK, .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL, .sleep = REG_FIELD(DA9062AA_VLDO3_A, __builtin_ffs((int)DA9062AA_LDO3_SL_A_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO3_SL_A_MASK)) - 1), .suspend_sleep = REG_FIELD(DA9062AA_VLDO3_B, __builtin_ffs((int)DA9062AA_LDO3_SL_B_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO3_SL_B_MASK)) - 1), .suspend_vsel_reg = DA9062AA_VLDO3_B, .suspend = REG_FIELD(DA9062AA_LDO3_CONT, __builtin_ffs((int)DA9062AA_LDO3_CONF_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz(DA9062AA_LDO3_CONF_MASK) - 1), .oc_event = REG_FIELD(DA9062AA_STATUS_D, __builtin_ffs((int)DA9062AA_LDO3_ILIM_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO3_ILIM_MASK)) - 1), }, { .desc.id = DA9061_ID_LDO4, .desc.name = "DA9061 LDO4", .desc.of_match = of_match_ptr("ldo4"), .desc.regulators_node = of_match_ptr("regulators"), .desc.ops = &da9062_ldo_ops, .desc.min_uV = (900) * 1000, .desc.uV_step = (50) * 1000, .desc.n_voltages = ((3600) - (900))/(50) + 1 + DA9062AA_VLDO_A_MIN_SEL, .desc.enable_reg = DA9062AA_LDO4_CONT, .desc.enable_mask = DA9062AA_LDO4_EN_MASK, .desc.vsel_reg = DA9062AA_VLDO4_A, .desc.vsel_mask = DA9062AA_VLDO4_A_MASK, .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL, .sleep = REG_FIELD(DA9062AA_VLDO4_A, __builtin_ffs((int)DA9062AA_LDO4_SL_A_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO4_SL_A_MASK)) - 1), .suspend_sleep = REG_FIELD(DA9062AA_VLDO4_B, __builtin_ffs((int)DA9062AA_LDO4_SL_B_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO4_SL_B_MASK)) - 1), .suspend_vsel_reg = DA9062AA_VLDO4_B, .suspend = REG_FIELD(DA9062AA_LDO4_CONT, __builtin_ffs((int)DA9062AA_LDO4_CONF_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz(DA9062AA_LDO4_CONF_MASK) - 1), .oc_event = REG_FIELD(DA9062AA_STATUS_D, __builtin_ffs((int)DA9062AA_LDO4_ILIM_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO4_ILIM_MASK)) - 1), }, }; /* DA9062 Regulator information */ static const struct da9062_regulator_info local_da9062_regulator_info[] = { { .desc.id = DA9062_ID_BUCK1, .desc.name = "DA9062 BUCK1", .desc.of_match = of_match_ptr("buck1"), .desc.regulators_node = of_match_ptr("regulators"), .desc.ops = &da9062_buck_ops, .desc.min_uV = (300) * 1000, .desc.uV_step = (10) * 1000, .desc.n_voltages = ((1570) - (300))/(10) + 1, .desc.curr_table = da9062_buck_a_limits, .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits), .desc.csel_reg = DA9062AA_BUCK_ILIM_C, .desc.csel_mask = DA9062AA_BUCK1_ILIM_MASK, .desc.enable_reg = DA9062AA_BUCK1_CONT, .desc.enable_mask = DA9062AA_BUCK1_EN_MASK, .desc.vsel_reg = DA9062AA_VBUCK1_A, .desc.vsel_mask = DA9062AA_VBUCK1_A_MASK, .desc.linear_min_sel = 0, .sleep = REG_FIELD(DA9062AA_VBUCK1_A, __builtin_ffs((int)DA9062AA_BUCK1_SL_A_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_BUCK1_SL_A_MASK)) - 1), .suspend_sleep = REG_FIELD(DA9062AA_VBUCK1_B, __builtin_ffs((int)DA9062AA_BUCK1_SL_B_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_BUCK1_SL_B_MASK)) - 1), .suspend_vsel_reg = DA9062AA_VBUCK1_B, .mode = REG_FIELD(DA9062AA_BUCK1_CFG, __builtin_ffs((int)DA9062AA_BUCK1_MODE_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_BUCK1_MODE_MASK)) - 1), .suspend = REG_FIELD(DA9062AA_BUCK1_CONT, __builtin_ffs((int)DA9062AA_BUCK1_CONF_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz(DA9062AA_BUCK1_CONF_MASK) - 1), }, { .desc.id = DA9062_ID_BUCK2, .desc.name = "DA9062 BUCK2", .desc.of_match = of_match_ptr("buck2"), .desc.regulators_node = of_match_ptr("regulators"), .desc.ops = &da9062_buck_ops, .desc.min_uV = (300) * 1000, .desc.uV_step = (10) * 1000, .desc.n_voltages = ((1570) - (300))/(10) + 1, .desc.curr_table = da9062_buck_a_limits, .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits), .desc.csel_reg = DA9062AA_BUCK_ILIM_C, .desc.csel_mask = DA9062AA_BUCK2_ILIM_MASK, .desc.enable_reg = DA9062AA_BUCK2_CONT, .desc.enable_mask = DA9062AA_BUCK2_EN_MASK, .desc.vsel_reg = DA9062AA_VBUCK2_A, .desc.vsel_mask = DA9062AA_VBUCK2_A_MASK, .desc.linear_min_sel = 0, .sleep = REG_FIELD(DA9062AA_VBUCK2_A, __builtin_ffs((int)DA9062AA_BUCK2_SL_A_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_BUCK2_SL_A_MASK)) - 1), .suspend_sleep = REG_FIELD(DA9062AA_VBUCK2_B, __builtin_ffs((int)DA9062AA_BUCK2_SL_B_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_BUCK2_SL_B_MASK)) - 1), .suspend_vsel_reg = DA9062AA_VBUCK2_B, .mode = REG_FIELD(DA9062AA_BUCK2_CFG, __builtin_ffs((int)DA9062AA_BUCK2_MODE_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_BUCK2_MODE_MASK)) - 1), .suspend = REG_FIELD(DA9062AA_BUCK2_CONT, __builtin_ffs((int)DA9062AA_BUCK2_CONF_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz(DA9062AA_BUCK2_CONF_MASK) - 1), }, { .desc.id = DA9062_ID_BUCK3, .desc.name = "DA9062 BUCK3", .desc.of_match = of_match_ptr("buck3"), .desc.regulators_node = of_match_ptr("regulators"), .desc.ops = &da9062_buck_ops, .desc.min_uV = (800) * 1000, .desc.uV_step = (20) * 1000, .desc.n_voltages = ((3340) - (800))/(20) + 1, .desc.curr_table = da9062_buck_b_limits, .desc.n_current_limits = ARRAY_SIZE(da9062_buck_b_limits), .desc.csel_reg = DA9062AA_BUCK_ILIM_A, .desc.csel_mask = DA9062AA_BUCK3_ILIM_MASK, .desc.enable_reg = DA9062AA_BUCK3_CONT, .desc.enable_mask = DA9062AA_BUCK3_EN_MASK, .desc.vsel_reg = DA9062AA_VBUCK3_A, .desc.vsel_mask = DA9062AA_VBUCK3_A_MASK, .desc.linear_min_sel = 0, .sleep = REG_FIELD(DA9062AA_VBUCK3_A, __builtin_ffs((int)DA9062AA_BUCK3_SL_A_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_BUCK3_SL_A_MASK)) - 1), .suspend_sleep = REG_FIELD(DA9062AA_VBUCK3_B, __builtin_ffs((int)DA9062AA_BUCK3_SL_B_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_BUCK3_SL_B_MASK)) - 1), .suspend_vsel_reg = DA9062AA_VBUCK3_B, .mode = REG_FIELD(DA9062AA_BUCK3_CFG, __builtin_ffs((int)DA9062AA_BUCK3_MODE_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_BUCK3_MODE_MASK)) - 1), .suspend = REG_FIELD(DA9062AA_BUCK3_CONT, __builtin_ffs((int)DA9062AA_BUCK3_CONF_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz(DA9062AA_BUCK3_CONF_MASK) - 1), }, { .desc.id = DA9062_ID_BUCK4, .desc.name = "DA9062 BUCK4", .desc.of_match = of_match_ptr("buck4"), .desc.regulators_node = of_match_ptr("regulators"), .desc.ops = &da9062_buck_ops, .desc.min_uV = (530) * 1000, .desc.uV_step = (10) * 1000, .desc.n_voltages = ((1800) - (530))/(10) + 1, .desc.curr_table = da9062_buck_a_limits, .desc.n_current_limits = ARRAY_SIZE(da9062_buck_a_limits), .desc.csel_reg = DA9062AA_BUCK_ILIM_B, .desc.csel_mask = DA9062AA_BUCK4_ILIM_MASK, .desc.enable_reg = DA9062AA_BUCK4_CONT, .desc.enable_mask = DA9062AA_BUCK4_EN_MASK, .desc.vsel_reg = DA9062AA_VBUCK4_A, .desc.vsel_mask = DA9062AA_VBUCK4_A_MASK, .desc.linear_min_sel = 0, .sleep = REG_FIELD(DA9062AA_VBUCK4_A, __builtin_ffs((int)DA9062AA_BUCK4_SL_A_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_BUCK4_SL_A_MASK)) - 1), .suspend_sleep = REG_FIELD(DA9062AA_VBUCK4_B, __builtin_ffs((int)DA9062AA_BUCK4_SL_B_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_BUCK4_SL_B_MASK)) - 1), .suspend_vsel_reg = DA9062AA_VBUCK4_B, .mode = REG_FIELD(DA9062AA_BUCK4_CFG, __builtin_ffs((int)DA9062AA_BUCK4_MODE_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_BUCK4_MODE_MASK)) - 1), .suspend = REG_FIELD(DA9062AA_BUCK4_CONT, __builtin_ffs((int)DA9062AA_BUCK4_CONF_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz(DA9062AA_BUCK4_CONF_MASK) - 1), }, { .desc.id = DA9062_ID_LDO1, .desc.name = "DA9062 LDO1", .desc.of_match = of_match_ptr("ldo1"), .desc.regulators_node = of_match_ptr("regulators"), .desc.ops = &da9062_ldo_ops, .desc.min_uV = (900) * 1000, .desc.uV_step = (50) * 1000, .desc.n_voltages = ((3600) - (900))/(50) + 1 + DA9062AA_VLDO_A_MIN_SEL, .desc.enable_reg = DA9062AA_LDO1_CONT, .desc.enable_mask = DA9062AA_LDO1_EN_MASK, .desc.vsel_reg = DA9062AA_VLDO1_A, .desc.vsel_mask = DA9062AA_VLDO1_A_MASK, .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL, .sleep = REG_FIELD(DA9062AA_VLDO1_A, __builtin_ffs((int)DA9062AA_LDO1_SL_A_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO1_SL_A_MASK)) - 1), .suspend_sleep = REG_FIELD(DA9062AA_VLDO1_B, __builtin_ffs((int)DA9062AA_LDO1_SL_B_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO1_SL_B_MASK)) - 1), .suspend_vsel_reg = DA9062AA_VLDO1_B, .suspend = REG_FIELD(DA9062AA_LDO1_CONT, __builtin_ffs((int)DA9062AA_LDO1_CONF_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz(DA9062AA_LDO1_CONF_MASK) - 1), .oc_event = REG_FIELD(DA9062AA_STATUS_D, __builtin_ffs((int)DA9062AA_LDO1_ILIM_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO1_ILIM_MASK)) - 1), }, { .desc.id = DA9062_ID_LDO2, .desc.name = "DA9062 LDO2", .desc.of_match = of_match_ptr("ldo2"), .desc.regulators_node = of_match_ptr("regulators"), .desc.ops = &da9062_ldo_ops, .desc.min_uV = (900) * 1000, .desc.uV_step = (50) * 1000, .desc.n_voltages = ((3600) - (900))/(50) + 1 + DA9062AA_VLDO_A_MIN_SEL, .desc.enable_reg = DA9062AA_LDO2_CONT, .desc.enable_mask = DA9062AA_LDO2_EN_MASK, .desc.vsel_reg = DA9062AA_VLDO2_A, .desc.vsel_mask = DA9062AA_VLDO2_A_MASK, .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL, .sleep = REG_FIELD(DA9062AA_VLDO2_A, __builtin_ffs((int)DA9062AA_LDO2_SL_A_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO2_SL_A_MASK)) - 1), .suspend_sleep = REG_FIELD(DA9062AA_VLDO2_B, __builtin_ffs((int)DA9062AA_LDO2_SL_B_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO2_SL_B_MASK)) - 1), .suspend_vsel_reg = DA9062AA_VLDO2_B, .suspend = REG_FIELD(DA9062AA_LDO2_CONT, __builtin_ffs((int)DA9062AA_LDO2_CONF_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz(DA9062AA_LDO2_CONF_MASK) - 1), .oc_event = REG_FIELD(DA9062AA_STATUS_D, __builtin_ffs((int)DA9062AA_LDO2_ILIM_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO2_ILIM_MASK)) - 1), }, { .desc.id = DA9062_ID_LDO3, .desc.name = "DA9062 LDO3", .desc.of_match = of_match_ptr("ldo3"), .desc.regulators_node = of_match_ptr("regulators"), .desc.ops = &da9062_ldo_ops, .desc.min_uV = (900) * 1000, .desc.uV_step = (50) * 1000, .desc.n_voltages = ((3600) - (900))/(50) + 1 + DA9062AA_VLDO_A_MIN_SEL, .desc.enable_reg = DA9062AA_LDO3_CONT, .desc.enable_mask = DA9062AA_LDO3_EN_MASK, .desc.vsel_reg = DA9062AA_VLDO3_A, .desc.vsel_mask = DA9062AA_VLDO3_A_MASK, .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL, .sleep = REG_FIELD(DA9062AA_VLDO3_A, __builtin_ffs((int)DA9062AA_LDO3_SL_A_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO3_SL_A_MASK)) - 1), .suspend_sleep = REG_FIELD(DA9062AA_VLDO3_B, __builtin_ffs((int)DA9062AA_LDO3_SL_B_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO3_SL_B_MASK)) - 1), .suspend_vsel_reg = DA9062AA_VLDO3_B, .suspend = REG_FIELD(DA9062AA_LDO3_CONT, __builtin_ffs((int)DA9062AA_LDO3_CONF_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz(DA9062AA_LDO3_CONF_MASK) - 1), .oc_event = REG_FIELD(DA9062AA_STATUS_D, __builtin_ffs((int)DA9062AA_LDO3_ILIM_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO3_ILIM_MASK)) - 1), }, { .desc.id = DA9062_ID_LDO4, .desc.name = "DA9062 LDO4", .desc.of_match = of_match_ptr("ldo4"), .desc.regulators_node = of_match_ptr("regulators"), .desc.ops = &da9062_ldo_ops, .desc.min_uV = (900) * 1000, .desc.uV_step = (50) * 1000, .desc.n_voltages = ((3600) - (900))/(50) + 1 + DA9062AA_VLDO_A_MIN_SEL, .desc.enable_reg = DA9062AA_LDO4_CONT, .desc.enable_mask = DA9062AA_LDO4_EN_MASK, .desc.vsel_reg = DA9062AA_VLDO4_A, .desc.vsel_mask = DA9062AA_VLDO4_A_MASK, .desc.linear_min_sel = DA9062AA_VLDO_A_MIN_SEL, .sleep = REG_FIELD(DA9062AA_VLDO4_A, __builtin_ffs((int)DA9062AA_LDO4_SL_A_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO4_SL_A_MASK)) - 1), .suspend_sleep = REG_FIELD(DA9062AA_VLDO4_B, __builtin_ffs((int)DA9062AA_LDO4_SL_B_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO4_SL_B_MASK)) - 1), .suspend_vsel_reg = DA9062AA_VLDO4_B, .suspend = REG_FIELD(DA9062AA_LDO4_CONT, __builtin_ffs((int)DA9062AA_LDO4_CONF_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz(DA9062AA_LDO4_CONF_MASK) - 1), .oc_event = REG_FIELD(DA9062AA_STATUS_D, __builtin_ffs((int)DA9062AA_LDO4_ILIM_MASK) - 1, sizeof(unsigned int) * 8 - __builtin_clz((DA9062AA_LDO4_ILIM_MASK)) - 1), }, }; /* Regulator interrupt handlers */ static irqreturn_t da9062_ldo_lim_event(int irq, void *data) { struct da9062_regulators *regulators = data; struct da9062 *hw = regulators->regulator[0].hw; struct da9062_regulator *regl; int handled = IRQ_NONE; int bits, i, ret; ret = regmap_read(hw->regmap, DA9062AA_STATUS_D, &bits); if (ret < 0) { dev_err(hw->dev, "Failed to read LDO overcurrent indicator\n"); goto ldo_lim_error; } for (i = regulators->n_regulators - 1; i >= 0; i--) { regl = ®ulators->regulator[i]; if (regl->info->oc_event.reg != DA9062AA_STATUS_D) continue; if (BIT(regl->info->oc_event.lsb) & bits) { regulator_lock(regl->rdev); regulator_notifier_call_chain(regl->rdev, REGULATOR_EVENT_OVER_CURRENT, NULL); regulator_unlock(regl->rdev); handled = IRQ_HANDLED; } } ldo_lim_error: return handled; } static int da9062_regulator_probe(struct platform_device *pdev) { struct da9062 *chip = dev_get_drvdata(pdev->dev.parent); struct da9062_regulators *regulators; struct da9062_regulator *regl; struct regulator_config config = { }; const struct da9062_regulator_info *rinfo; int irq, n, ret; int max_regulators; switch (chip->chip_type) { case COMPAT_TYPE_DA9061: max_regulators = DA9061_MAX_REGULATORS; rinfo = local_da9061_regulator_info; break; case COMPAT_TYPE_DA9062: max_regulators = DA9062_MAX_REGULATORS; rinfo = local_da9062_regulator_info; break; default: dev_err(chip->dev, "Unrecognised chip type\n"); return -ENODEV; } /* Allocate memory required by usable regulators */ regulators = devm_kzalloc(&pdev->dev, struct_size(regulators, regulator, max_regulators), GFP_KERNEL); if (!regulators) return -ENOMEM; regulators->n_regulators = max_regulators; platform_set_drvdata(pdev, regulators); n = 0; while (n < regulators->n_regulators) { /* Initialise regulator structure */ regl = ®ulators->regulator[n]; regl->hw = chip; regl->info = &rinfo[n]; regl->desc = regl->info->desc; regl->desc.type = REGULATOR_VOLTAGE; regl->desc.owner = THIS_MODULE; if (regl->info->mode.reg) { regl->mode = devm_regmap_field_alloc( &pdev->dev, chip->regmap, regl->info->mode); if (IS_ERR(regl->mode)) return PTR_ERR(regl->mode); } if (regl->info->suspend.reg) { regl->suspend = devm_regmap_field_alloc( &pdev->dev, chip->regmap, regl->info->suspend); if (IS_ERR(regl->suspend)) return PTR_ERR(regl->suspend); } if (regl->info->sleep.reg) { regl->sleep = devm_regmap_field_alloc( &pdev->dev, chip->regmap, regl->info->sleep); if (IS_ERR(regl->sleep)) return PTR_ERR(regl->sleep); } if (regl->info->suspend_sleep.reg) { regl->suspend_sleep = devm_regmap_field_alloc( &pdev->dev, chip->regmap, regl->info->suspend_sleep); if (IS_ERR(regl->suspend_sleep)) return PTR_ERR(regl->suspend_sleep); } /* Register regulator */ memset(&config, 0, sizeof(config)); config.dev = chip->dev; config.driver_data = regl; config.regmap = chip->regmap; regl->rdev = devm_regulator_register(&pdev->dev, ®l->desc, &config); if (IS_ERR(regl->rdev)) { dev_err(&pdev->dev, "Failed to register %s regulator\n", regl->desc.name); return PTR_ERR(regl->rdev); } n++; } /* LDOs overcurrent event support */ irq = platform_get_irq_byname(pdev, "LDO_LIM"); if (irq < 0) return irq; regulators->irq_ldo_lim = irq; ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, da9062_ldo_lim_event, IRQF_TRIGGER_LOW | IRQF_ONESHOT, "LDO_LIM", regulators); if (ret) { dev_warn(&pdev->dev, "Failed to request LDO_LIM IRQ.\n"); regulators->irq_ldo_lim = -ENXIO; } return 0; } static struct platform_driver da9062_regulator_driver = { .driver = { .name = "da9062-regulators", }, .probe = da9062_regulator_probe, }; static int __init da9062_regulator_init(void) { return platform_driver_register(&da9062_regulator_driver); } subsys_initcall(da9062_regulator_init); static void __exit da9062_regulator_cleanup(void) { platform_driver_unregister(&da9062_regulator_driver); } module_exit(da9062_regulator_cleanup); /* Module information */ MODULE_AUTHOR("S Twiss <stwiss.opensource@diasemi.com>"); MODULE_DESCRIPTION("REGULATOR device driver for Dialog DA9062 and DA9061"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:da9062-regulators");
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