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drivers/regulator/da9063-regulator.c
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// SPDX-License-Identifier: GPL-2.0+ // // Regulator driver for DA9063 PMIC series // // Copyright 2012 Dialog Semiconductors Ltd. // Copyright 2013 Philipp Zabel, Pengutronix // // Author: Krystian Garbaciak <krystian.garbaciak@diasemi.com> |
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#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/da9063/core.h> |
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#include <linux/mfd/da9063/registers.h> /* Definition for registering regmap bit fields using a mask */ #define BFIELD(_reg, _mask) \ REG_FIELD(_reg, __builtin_ffs((int)_mask) - 1, \ sizeof(unsigned int) * 8 - __builtin_clz((_mask)) - 1) |
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/* DA9063 and DA9063L regulator IDs */ enum { /* BUCKs */ DA9063_ID_BCORE1, DA9063_ID_BCORE2, DA9063_ID_BPRO, DA9063_ID_BMEM, DA9063_ID_BIO, DA9063_ID_BPERI, /* BCORE1 and BCORE2 in merged mode */ DA9063_ID_BCORES_MERGED, /* BMEM and BIO in merged mode */ DA9063_ID_BMEM_BIO_MERGED, /* When two BUCKs are merged, they cannot be reused separately */ /* LDOs on both DA9063 and DA9063L */ DA9063_ID_LDO3, DA9063_ID_LDO7, DA9063_ID_LDO8, DA9063_ID_LDO9, DA9063_ID_LDO11, /* DA9063-only LDOs */ DA9063_ID_LDO1, DA9063_ID_LDO2, DA9063_ID_LDO4, DA9063_ID_LDO5, DA9063_ID_LDO6, DA9063_ID_LDO10, }; /* Old regulator platform data */ struct da9063_regulator_data { int id; struct regulator_init_data *initdata; }; struct da9063_regulators_pdata { |
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unsigned int n_regulators; |
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struct da9063_regulator_data *regulator_data; }; |
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/* Regulator capabilities and registers description */ struct da9063_regulator_info { struct regulator_desc desc; |
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/* DA9063 main register fields */ struct reg_field mode; /* buck mode of operation */ struct reg_field suspend; struct reg_field sleep; struct reg_field suspend_sleep; unsigned int suspend_vsel_reg; |
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/* DA9063 event detection bit */ struct reg_field oc_event; }; /* Macros for LDO */ #define DA9063_LDO(chip, regl_name, min_mV, step_mV, max_mV) \ .desc.id = chip##_ID_##regl_name, \ .desc.name = __stringify(chip##_##regl_name), \ .desc.ops = &da9063_ldo_ops, \ .desc.min_uV = (min_mV) * 1000, \ .desc.uV_step = (step_mV) * 1000, \ |
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.desc.n_voltages = (((max_mV) - (min_mV))/(step_mV) + 1 \ + (DA9063_V##regl_name##_BIAS)), \ |
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.desc.enable_reg = DA9063_REG_##regl_name##_CONT, \ .desc.enable_mask = DA9063_LDO_EN, \ .desc.vsel_reg = DA9063_REG_V##regl_name##_A, \ .desc.vsel_mask = DA9063_V##regl_name##_MASK, \ .desc.linear_min_sel = DA9063_V##regl_name##_BIAS, \ .sleep = BFIELD(DA9063_REG_V##regl_name##_A, DA9063_LDO_SL), \ |
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.suspend = BFIELD(DA9063_REG_##regl_name##_CONT, DA9063_LDO_CONF), \ |
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.suspend_sleep = BFIELD(DA9063_REG_V##regl_name##_B, DA9063_LDO_SL), \ .suspend_vsel_reg = DA9063_REG_V##regl_name##_B /* Macros for voltage DC/DC converters (BUCKs) */ |
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#define DA9063_BUCK(chip, regl_name, min_mV, step_mV, max_mV, limits_array, \ creg, cmask) \ |
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.desc.id = chip##_ID_##regl_name, \ .desc.name = __stringify(chip##_##regl_name), \ .desc.ops = &da9063_buck_ops, \ .desc.min_uV = (min_mV) * 1000, \ .desc.uV_step = (step_mV) * 1000, \ .desc.n_voltages = ((max_mV) - (min_mV))/(step_mV) + 1, \ |
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.desc.csel_reg = (creg), \ .desc.csel_mask = (cmask), \ .desc.curr_table = limits_array, \ .desc.n_current_limits = ARRAY_SIZE(limits_array) |
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#define DA9063_BUCK_COMMON_FIELDS(regl_name) \ .desc.enable_reg = DA9063_REG_##regl_name##_CONT, \ .desc.enable_mask = DA9063_BUCK_EN, \ .desc.vsel_reg = DA9063_REG_V##regl_name##_A, \ .desc.vsel_mask = DA9063_VBUCK_MASK, \ .desc.linear_min_sel = DA9063_VBUCK_BIAS, \ .sleep = BFIELD(DA9063_REG_V##regl_name##_A, DA9063_BUCK_SL), \ |
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.suspend = BFIELD(DA9063_REG_##regl_name##_CONT, DA9063_BUCK_CONF), \ |
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.suspend_sleep = BFIELD(DA9063_REG_V##regl_name##_B, DA9063_BUCK_SL), \ .suspend_vsel_reg = DA9063_REG_V##regl_name##_B, \ .mode = BFIELD(DA9063_REG_##regl_name##_CFG, DA9063_BUCK_MODE_MASK) /* Defines asignment of regulators info table to chip model */ struct da9063_dev_model { const struct da9063_regulator_info *regulator_info; |
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unsigned int n_regulators; |
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enum da9063_type type; |
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}; /* Single regulator settings */ struct da9063_regulator { struct regulator_desc desc; struct regulator_dev *rdev; struct da9063 *hw; const struct da9063_regulator_info *info; struct regmap_field *mode; struct regmap_field *suspend; struct regmap_field *sleep; struct regmap_field *suspend_sleep; |
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}; /* Encapsulates all information for the regulators driver */ struct da9063_regulators { |
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unsigned int n_regulators; |
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/* Array size to be defined during init. Keep at end. */ |
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struct da9063_regulator regulator[]; |
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}; /* BUCK modes for DA9063 */ enum { BUCK_MODE_MANUAL, /* 0 */ BUCK_MODE_SLEEP, /* 1 */ BUCK_MODE_SYNC, /* 2 */ BUCK_MODE_AUTO /* 3 */ }; /* Regulator operations */ |
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/* * Current limits array (in uA) for BCORE1, BCORE2, BPRO. * Entry indexes corresponds to register values. */ |
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static const unsigned int da9063_buck_a_limits[] = { |
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500000, 600000, 700000, 800000, 900000, 1000000, 1100000, 1200000, 1300000, 1400000, 1500000, 1600000, 1700000, 1800000, 1900000, 2000000 }; |
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/* * Current limits array (in uA) for BMEM, BIO, BPERI. * Entry indexes corresponds to register values. */ |
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static const unsigned int da9063_buck_b_limits[] = { |
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1500000, 1600000, 1700000, 1800000, 1900000, 2000000, 2100000, 2200000, 2300000, 2400000, 2500000, 2600000, 2700000, 2800000, 2900000, 3000000 }; |
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/* * Current limits array (in uA) for merged BCORE1 and BCORE2. * Entry indexes corresponds to register values. */ |
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static const unsigned int da9063_bcores_merged_limits[] = { |
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1000000, 1200000, 1400000, 1600000, 1800000, 2000000, 2200000, 2400000, 2600000, 2800000, 3000000, 3200000, 3400000, 3600000, 3800000, 4000000 }; |
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/* * Current limits array (in uA) for merged BMEM and BIO. * Entry indexes corresponds to register values. */ |
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static const unsigned int da9063_bmem_bio_merged_limits[] = { |
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3000000, 3200000, 3400000, 3600000, 3800000, 4000000, 4200000, 4400000, 4600000, 4800000, 5000000, 5200000, 5400000, 5600000, 5800000, 6000000 }; |
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static int da9063_buck_set_mode(struct regulator_dev *rdev, unsigned int mode) |
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{ struct da9063_regulator *regl = rdev_get_drvdata(rdev); |
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unsigned int val; |
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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. */ |
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static unsigned int da9063_buck_get_mode(struct regulator_dev *rdev) |
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{ struct da9063_regulator *regl = rdev_get_drvdata(rdev); |
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unsigned int val; |
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int ret; ret = regmap_field_read(regl->mode, &val); if (ret < 0) return ret; switch (val) { default: case BUCK_MODE_MANUAL: |
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/* 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; } |
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ret = regmap_field_read(regl->sleep, &val); |
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if (ret < 0) return 0; if (val) |
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return REGULATOR_MODE_STANDBY; |
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else |
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return REGULATOR_MODE_FAST; |
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} /* * 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. */ |
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static int da9063_ldo_set_mode(struct regulator_dev *rdev, unsigned int mode) |
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{ struct da9063_regulator *regl = rdev_get_drvdata(rdev); |
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unsigned int val; |
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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); } |
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static unsigned int da9063_ldo_get_mode(struct regulator_dev *rdev) |
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{ struct da9063_regulator *regl = rdev_get_drvdata(rdev); |
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int ret, val; |
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ret = regmap_field_read(regl->sleep, &val); |
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if (ret < 0) return 0; if (val) return REGULATOR_MODE_STANDBY; else return REGULATOR_MODE_NORMAL; } static int da9063_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 = da9063_buck_get_mode(rdev); if (ret > 0) ret = regulator_mode_to_status(ret); else if (ret == 0) ret = -EIO; } return ret; } static int da9063_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 = da9063_ldo_get_mode(rdev); if (ret > 0) ret = regulator_mode_to_status(ret); else if (ret == 0) ret = -EIO; } return ret; } static int da9063_set_suspend_voltage(struct regulator_dev *rdev, int uV) { struct da9063_regulator *regl = rdev_get_drvdata(rdev); const struct da9063_regulator_info *rinfo = regl->info; int ret, sel; sel = regulator_map_voltage_linear(rdev, uV, uV); if (sel < 0) |
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return sel; |
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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 da9063_suspend_enable(struct regulator_dev *rdev) { struct da9063_regulator *regl = rdev_get_drvdata(rdev); return regmap_field_write(regl->suspend, 1); } static int da9063_suspend_disable(struct regulator_dev *rdev) { struct da9063_regulator *regl = rdev_get_drvdata(rdev); return regmap_field_write(regl->suspend, 0); } |
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static int da9063_buck_set_suspend_mode(struct regulator_dev *rdev, unsigned int mode) |
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{ struct da9063_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); } |
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static int da9063_ldo_set_suspend_mode(struct regulator_dev *rdev, unsigned int mode) |
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{ struct da9063_regulator *regl = rdev_get_drvdata(rdev); |
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unsigned int val; |
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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); } |
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static const struct regulator_ops da9063_buck_ops = { |
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.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, |
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.set_current_limit = regulator_set_current_limit_regmap, .get_current_limit = regulator_get_current_limit_regmap, |
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.set_mode = da9063_buck_set_mode, .get_mode = da9063_buck_get_mode, .get_status = da9063_buck_get_status, .set_suspend_voltage = da9063_set_suspend_voltage, .set_suspend_enable = da9063_suspend_enable, .set_suspend_disable = da9063_suspend_disable, .set_suspend_mode = da9063_buck_set_suspend_mode, }; |
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static const struct regulator_ops da9063_ldo_ops = { |
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.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 = da9063_ldo_set_mode, .get_mode = da9063_ldo_get_mode, .get_status = da9063_ldo_get_status, .set_suspend_voltage = da9063_set_suspend_voltage, .set_suspend_enable = da9063_suspend_enable, .set_suspend_disable = da9063_suspend_disable, .set_suspend_mode = da9063_ldo_set_suspend_mode, }; /* Info of regulators for DA9063 */ static const struct da9063_regulator_info da9063_regulator_info[] = { { DA9063_BUCK(DA9063, BCORE1, 300, 10, 1570, |
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da9063_buck_a_limits, DA9063_REG_BUCK_ILIM_C, DA9063_BCORE1_ILIM_MASK), |
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DA9063_BUCK_COMMON_FIELDS(BCORE1), |
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}, { DA9063_BUCK(DA9063, BCORE2, 300, 10, 1570, |
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da9063_buck_a_limits, DA9063_REG_BUCK_ILIM_C, DA9063_BCORE2_ILIM_MASK), |
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DA9063_BUCK_COMMON_FIELDS(BCORE2), |
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}, { DA9063_BUCK(DA9063, BPRO, 530, 10, 1800, |
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da9063_buck_a_limits, DA9063_REG_BUCK_ILIM_B, DA9063_BPRO_ILIM_MASK), |
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DA9063_BUCK_COMMON_FIELDS(BPRO), |
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}, { DA9063_BUCK(DA9063, BMEM, 800, 20, 3340, |
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da9063_buck_b_limits, DA9063_REG_BUCK_ILIM_A, DA9063_BMEM_ILIM_MASK), |
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DA9063_BUCK_COMMON_FIELDS(BMEM), |
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}, { DA9063_BUCK(DA9063, BIO, 800, 20, 3340, |
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da9063_buck_b_limits, DA9063_REG_BUCK_ILIM_A, DA9063_BIO_ILIM_MASK), |
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DA9063_BUCK_COMMON_FIELDS(BIO), |
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}, { DA9063_BUCK(DA9063, BPERI, 800, 20, 3340, |
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da9063_buck_b_limits, DA9063_REG_BUCK_ILIM_B, DA9063_BPERI_ILIM_MASK), |
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DA9063_BUCK_COMMON_FIELDS(BPERI), |
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}, { DA9063_BUCK(DA9063, BCORES_MERGED, 300, 10, 1570, |
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da9063_bcores_merged_limits, DA9063_REG_BUCK_ILIM_C, DA9063_BCORE1_ILIM_MASK), |
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/* BCORES_MERGED uses the same register fields as BCORE1 */ DA9063_BUCK_COMMON_FIELDS(BCORE1), |
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}, { DA9063_BUCK(DA9063, BMEM_BIO_MERGED, 800, 20, 3340, |
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da9063_bmem_bio_merged_limits, DA9063_REG_BUCK_ILIM_A, DA9063_BMEM_ILIM_MASK), |
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/* BMEM_BIO_MERGED uses the same register fields as BMEM */ DA9063_BUCK_COMMON_FIELDS(BMEM), |
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}, { |
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DA9063_LDO(DA9063, LDO3, 900, 20, 3440), |
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.oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO3_LIM), }, { DA9063_LDO(DA9063, LDO7, 900, 50, 3600), |
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.oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO7_LIM), }, { DA9063_LDO(DA9063, LDO8, 900, 50, 3600), |
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.oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO8_LIM), }, { DA9063_LDO(DA9063, LDO9, 950, 50, 3600), |
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}, { DA9063_LDO(DA9063, LDO11, 900, 50, 3600), |
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.oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO11_LIM), }, /* The following LDOs are present only on DA9063, not on DA9063L */ { |
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DA9063_LDO(DA9063, LDO1, 600, 20, 1860), |
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}, { DA9063_LDO(DA9063, LDO2, 600, 20, 1860), |
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}, { |
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DA9063_LDO(DA9063, LDO4, 900, 20, 3440), |
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.oc_event = BFIELD(DA9063_REG_STATUS_D, DA9063_LDO4_LIM), }, { DA9063_LDO(DA9063, LDO5, 900, 50, 3600), |
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}, { DA9063_LDO(DA9063, LDO6, 900, 50, 3600), |
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}, |
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{ DA9063_LDO(DA9063, LDO10, 900, 50, 3600), |
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}, |
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}; /* Link chip model with regulators info table */ static struct da9063_dev_model regulators_models[] = { { .regulator_info = da9063_regulator_info, .n_regulators = ARRAY_SIZE(da9063_regulator_info), |
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.type = PMIC_TYPE_DA9063, |
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}, |
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{ .regulator_info = da9063_regulator_info, .n_regulators = ARRAY_SIZE(da9063_regulator_info) - 6, .type = PMIC_TYPE_DA9063L, }, |
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{ } }; /* Regulator interrupt handlers */ |
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static irqreturn_t da9063_ldo_lim_event(int irq, void *data) |
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{ struct da9063_regulators *regulators = data; struct da9063 *hw = regulators->regulator[0].hw; struct da9063_regulator *regl; |
a33b25f57
|
548 |
int bits, i, ret; |
69ca3e58d
|
549 550 551 552 553 554 555 556 557 |
ret = regmap_read(hw->regmap, DA9063_REG_STATUS_D, &bits); if (ret < 0) return IRQ_NONE; for (i = regulators->n_regulators - 1; i >= 0; i--) { regl = ®ulators->regulator[i]; if (regl->info->oc_event.reg != DA9063_REG_STATUS_D) continue; |
29d40b4a5
|
558 |
if (BIT(regl->info->oc_event.lsb) & bits) { |
69ca3e58d
|
559 560 |
regulator_notifier_call_chain(regl->rdev, REGULATOR_EVENT_OVER_CURRENT, NULL); |
29d40b4a5
|
561 |
} |
69ca3e58d
|
562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 |
} return IRQ_HANDLED; } /* * Probing and Initialisation functions */ static const struct regulator_init_data *da9063_get_regulator_initdata( const struct da9063_regulators_pdata *regl_pdata, int id) { int i; for (i = 0; i < regl_pdata->n_regulators; i++) { if (id == regl_pdata->regulator_data[i].id) return regl_pdata->regulator_data[i].initdata; } return NULL; } |
69ca3e58d
|
582 583 584 585 586 587 588 589 590 |
static struct of_regulator_match da9063_matches[] = { [DA9063_ID_BCORE1] = { .name = "bcore1" }, [DA9063_ID_BCORE2] = { .name = "bcore2" }, [DA9063_ID_BPRO] = { .name = "bpro", }, [DA9063_ID_BMEM] = { .name = "bmem", }, [DA9063_ID_BIO] = { .name = "bio", }, [DA9063_ID_BPERI] = { .name = "bperi", }, [DA9063_ID_BCORES_MERGED] = { .name = "bcores-merged" }, [DA9063_ID_BMEM_BIO_MERGED] = { .name = "bmem-bio-merged", }, |
1c892e38c
|
591 592 593 594 595 596 |
[DA9063_ID_LDO3] = { .name = "ldo3", }, [DA9063_ID_LDO7] = { .name = "ldo7", }, [DA9063_ID_LDO8] = { .name = "ldo8", }, [DA9063_ID_LDO9] = { .name = "ldo9", }, [DA9063_ID_LDO11] = { .name = "ldo11", }, /* The following LDOs are present only on DA9063, not on DA9063L */ |
69ca3e58d
|
597 598 |
[DA9063_ID_LDO1] = { .name = "ldo1", }, [DA9063_ID_LDO2] = { .name = "ldo2", }, |
69ca3e58d
|
599 600 601 |
[DA9063_ID_LDO4] = { .name = "ldo4", }, [DA9063_ID_LDO5] = { .name = "ldo5", }, [DA9063_ID_LDO6] = { .name = "ldo6", }, |
69ca3e58d
|
602 |
[DA9063_ID_LDO10] = { .name = "ldo10", }, |
69ca3e58d
|
603 604 605 606 607 608 |
}; static struct da9063_regulators_pdata *da9063_parse_regulators_dt( struct platform_device *pdev, struct of_regulator_match **da9063_reg_matches) { |
1c892e38c
|
609 |
struct da9063 *da9063 = dev_get_drvdata(pdev->dev.parent); |
69ca3e58d
|
610 611 612 |
struct da9063_regulators_pdata *pdata; struct da9063_regulator_data *rdata; struct device_node *node; |
1c892e38c
|
613 |
int da9063_matches_len = ARRAY_SIZE(da9063_matches); |
69ca3e58d
|
614 |
int i, n, num; |
1c892e38c
|
615 616 |
if (da9063->type == PMIC_TYPE_DA9063L) da9063_matches_len -= 6; |
25cc275a8
|
617 |
node = of_get_child_by_name(pdev->dev.parent->of_node, "regulators"); |
69ca3e58d
|
618 619 620 621 622 623 624 |
if (!node) { dev_err(&pdev->dev, "Regulators device node not found "); return ERR_PTR(-ENODEV); } num = of_regulator_match(&pdev->dev, node, da9063_matches, |
1c892e38c
|
625 |
da9063_matches_len); |
2da8215ce
|
626 |
of_node_put(node); |
69ca3e58d
|
627 628 629 630 631 632 633 634 635 |
if (num < 0) { dev_err(&pdev->dev, "Failed to match regulators "); return ERR_PTR(-EINVAL); } pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) return ERR_PTR(-ENOMEM); |
a86854d0c
|
636 637 |
pdata->regulator_data = devm_kcalloc(&pdev->dev, num, sizeof(*pdata->regulator_data), |
69ca3e58d
|
638 639 640 641 642 643 |
GFP_KERNEL); if (!pdata->regulator_data) return ERR_PTR(-ENOMEM); pdata->n_regulators = num; n = 0; |
1c892e38c
|
644 |
for (i = 0; i < da9063_matches_len; i++) { |
69ca3e58d
|
645 646 647 648 649 650 651 652 |
if (!da9063_matches[i].init_data) continue; rdata = &pdata->regulator_data[n]; rdata->id = i; rdata->initdata = da9063_matches[i].init_data; n++; |
424fb281d
|
653 |
} |
69ca3e58d
|
654 655 656 657 |
*da9063_reg_matches = da9063_matches; return pdata; } |
69ca3e58d
|
658 659 660 661 |
static int da9063_regulator_probe(struct platform_device *pdev) { struct da9063 *da9063 = dev_get_drvdata(pdev->dev.parent); |
0fdfd40ac
|
662 |
struct of_regulator_match *da9063_reg_matches = NULL; |
69ca3e58d
|
663 664 665 666 667 668 669 |
struct da9063_regulators_pdata *regl_pdata; const struct da9063_dev_model *model; struct da9063_regulators *regulators; struct da9063_regulator *regl; struct regulator_config config; bool bcores_merged, bmem_bio_merged; int id, irq, n, n_regulators, ret, val; |
69ca3e58d
|
670 |
|
662307294
|
671 |
regl_pdata = da9063_parse_regulators_dt(pdev, &da9063_reg_matches); |
69ca3e58d
|
672 673 674 675 676 |
if (IS_ERR(regl_pdata) || regl_pdata->n_regulators == 0) { dev_err(&pdev->dev, "No regulators defined for the platform "); |
b66156598
|
677 |
return -ENODEV; |
69ca3e58d
|
678 679 680 681 |
} /* Find regulators set for particular device model */ for (model = regulators_models; model->regulator_info; model++) { |
492510dd7
|
682 |
if (model->type == da9063->type) |
69ca3e58d
|
683 684 685 686 687 |
break; } if (!model->regulator_info) { dev_err(&pdev->dev, "Chip model not recognised (%u) ", |
492510dd7
|
688 |
da9063->type); |
69ca3e58d
|
689 690 691 692 693 694 695 696 |
return -ENODEV; } ret = regmap_read(da9063->regmap, DA9063_REG_CONFIG_H, &val); if (ret < 0) { dev_err(&pdev->dev, "Error while reading BUCKs configuration "); |
8a7963d55
|
697 |
return ret; |
69ca3e58d
|
698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 |
} bcores_merged = val & DA9063_BCORE_MERGE; bmem_bio_merged = val & DA9063_BUCK_MERGE; n_regulators = model->n_regulators; if (bcores_merged) n_regulators -= 2; /* remove BCORE1, BCORE2 */ else n_regulators--; /* remove BCORES_MERGED */ if (bmem_bio_merged) n_regulators -= 2; /* remove BMEM, BIO */ else n_regulators--; /* remove BMEM_BIO_MERGED */ /* Allocate memory required by usable regulators */ |
ac227fb5b
|
713 714 |
regulators = devm_kzalloc(&pdev->dev, struct_size(regulators, regulator, n_regulators), GFP_KERNEL); |
8b5baa56f
|
715 |
if (!regulators) |
69ca3e58d
|
716 |
return -ENOMEM; |
69ca3e58d
|
717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 |
regulators->n_regulators = n_regulators; platform_set_drvdata(pdev, regulators); /* Register all regulators declared in platform information */ n = 0; id = 0; while (n < regulators->n_regulators) { /* Skip regulator IDs depending on merge mode configuration */ switch (id) { case DA9063_ID_BCORE1: case DA9063_ID_BCORE2: if (bcores_merged) { id++; continue; } break; case DA9063_ID_BMEM: case DA9063_ID_BIO: if (bmem_bio_merged) { id++; continue; } break; case DA9063_ID_BCORES_MERGED: if (!bcores_merged) { id++; continue; } break; case DA9063_ID_BMEM_BIO_MERGED: if (!bmem_bio_merged) { id++; continue; } break; } /* Initialise regulator structure */ regl = ®ulators->regulator[n]; regl->hw = da9063; regl->info = &model->regulator_info[id]; regl->desc = regl->info->desc; regl->desc.type = REGULATOR_VOLTAGE; regl->desc.owner = THIS_MODULE; |
845920394
|
762 |
if (regl->info->mode.reg) { |
69ca3e58d
|
763 764 |
regl->mode = devm_regmap_field_alloc(&pdev->dev, da9063->regmap, regl->info->mode); |
845920394
|
765 766 767 768 769 |
if (IS_ERR(regl->mode)) return PTR_ERR(regl->mode); } if (regl->info->suspend.reg) { |
69ca3e58d
|
770 771 |
regl->suspend = devm_regmap_field_alloc(&pdev->dev, da9063->regmap, regl->info->suspend); |
845920394
|
772 773 774 775 776 |
if (IS_ERR(regl->suspend)) return PTR_ERR(regl->suspend); } if (regl->info->sleep.reg) { |
69ca3e58d
|
777 778 |
regl->sleep = devm_regmap_field_alloc(&pdev->dev, da9063->regmap, regl->info->sleep); |
845920394
|
779 780 781 782 783 |
if (IS_ERR(regl->sleep)) return PTR_ERR(regl->sleep); } if (regl->info->suspend_sleep.reg) { |
69ca3e58d
|
784 |
regl->suspend_sleep = devm_regmap_field_alloc(&pdev->dev, |
a33b25f57
|
785 |
da9063->regmap, regl->info->suspend_sleep); |
845920394
|
786 787 788 |
if (IS_ERR(regl->suspend_sleep)) return PTR_ERR(regl->suspend_sleep); } |
69ca3e58d
|
789 790 791 792 793 794 795 796 |
/* Register regulator */ memset(&config, 0, sizeof(config)); config.dev = &pdev->dev; config.init_data = da9063_get_regulator_initdata(regl_pdata, id); config.driver_data = regl; if (da9063_reg_matches) config.of_node = da9063_reg_matches[id].of_node; config.regmap = da9063->regmap; |
e97bba912
|
797 798 |
regl->rdev = devm_regulator_register(&pdev->dev, ®l->desc, &config); |
e515800b7
|
799 |
if (IS_ERR(regl->rdev)) { |
69ca3e58d
|
800 801 802 803 |
dev_err(&pdev->dev, "Failed to register %s regulator ", regl->desc.name); |
e97bba912
|
804 |
return PTR_ERR(regl->rdev); |
69ca3e58d
|
805 806 807 808 809 810 811 |
} id++; n++; } /* LDOs overcurrent event support */ irq = platform_get_irq_byname(pdev, "LDO_LIM"); |
47241933b
|
812 |
if (irq < 0) |
e97bba912
|
813 |
return irq; |
69ca3e58d
|
814 |
|
d87aef916
|
815 |
ret = devm_request_threaded_irq(&pdev->dev, irq, |
8ad365c94
|
816 817 818 |
NULL, da9063_ldo_lim_event, IRQF_TRIGGER_LOW | IRQF_ONESHOT, "LDO_LIM", regulators); |
6d8d840b2
|
819 |
if (ret) |
d87aef916
|
820 821 |
dev_err(&pdev->dev, "Failed to request LDO_LIM IRQ. "); |
69ca3e58d
|
822 |
|
6d8d840b2
|
823 |
return ret; |
69ca3e58d
|
824 |
} |
69ca3e58d
|
825 826 827 |
static struct platform_driver da9063_regulator_driver = { .driver = { .name = DA9063_DRVNAME_REGULATORS, |
69ca3e58d
|
828 829 |
}, .probe = da9063_regulator_probe, |
69ca3e58d
|
830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 |
}; static int __init da9063_regulator_init(void) { return platform_driver_register(&da9063_regulator_driver); } subsys_initcall(da9063_regulator_init); static void __exit da9063_regulator_cleanup(void) { platform_driver_unregister(&da9063_regulator_driver); } module_exit(da9063_regulator_cleanup); /* Module information */ MODULE_AUTHOR("Krystian Garbaciak <krystian.garbaciak@diasemi.com>"); MODULE_DESCRIPTION("DA9063 regulators driver"); MODULE_LICENSE("GPL"); |
ac40b4417
|
849 |
MODULE_ALIAS("platform:" DA9063_DRVNAME_REGULATORS); |