| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * Copyright (C) 2018 Flowbird |
| * Martin Fuzzey <martin.fuzzey@flowbird.group> |
| */ |
| |
| #include <common.h> |
| #include <dm.h> |
| #include <linux/bitops.h> |
| #include <power/da9063_pmic.h> |
| #include <power/pmic.h> |
| #include <power/regulator.h> |
| |
| #define DA9063_BUCK_EN 0x01 |
| #define DA9063_LDO_EN 0x01 |
| #define DA9063_VBUCK_MASK 0x7F |
| #define DA9063_BUCK_SL 0x80 |
| #define DA9063_LDO_SL 0x80 |
| |
| #define DA9063_VLDO1_MASK 0x3F |
| #define DA9063_VLDO2_MASK 0x3F |
| #define DA9063_VLDO3_MASK 0x7F |
| #define DA9063_VLDO4_MASK 0x7F |
| #define DA9063_VLDO5_MASK 0x3F |
| #define DA9063_VLDO6_MASK 0x3F |
| #define DA9063_VLDO7_MASK 0x3F |
| #define DA9063_VLDO8_MASK 0x3F |
| #define DA9063_VLDO9_MASK 0x3F |
| #define DA9063_VLDO10_MASK 0x3F |
| #define DA9063_VLDO11_MASK 0x3F |
| |
| #define DA9063_BUCK_MODE_MASK 0xC0 |
| #define DA9063_BUCK_MODE_MANUAL 0x00 |
| #define DA9063_BUCK_MODE_SLEEP 0x40 |
| #define DA9063_BUCK_MODE_SYNC 0x80 |
| #define DA9063_BUCK_MODE_AUTO 0xC0 |
| |
| #define DA9063_BIO_ILIM_MASK 0x0F |
| #define DA9063_BMEM_ILIM_MASK 0xF0 |
| #define DA9063_BPRO_ILIM_MASK 0x0F |
| #define DA9063_BPERI_ILIM_MASK 0xF0 |
| #define DA9063_BCORE1_ILIM_MASK 0x0F |
| #define DA9063_BCORE2_ILIM_MASK 0xF0 |
| |
| struct da9063_reg_info { |
| uint min_uV; |
| uint step_uV; |
| uint max_uV; |
| uint min_uA; |
| uint step_uA; |
| uint max_uA; |
| uint en_reg; |
| uint vsel_reg; |
| uint mode_reg; |
| uint ilim_reg; |
| u8 en_mask; |
| u8 vsel_mask; |
| u8 ilim_mask; |
| const char *dt_node_name; |
| const int *current_limits; |
| }; |
| |
| struct da9063_priv { |
| const struct da9063_reg_info *reg_info; |
| }; |
| |
| static struct dm_regulator_mode da9063_ldo_modes[] = { |
| { .id = DA9063_LDOMODE_SLEEP, |
| .register_value = DA9063_LDO_SL, .name = "SLEEP" }, |
| { .id = DA9063_LDOMODE_NORMAL, |
| .register_value = 0, .name = "NORMAL" }, |
| }; |
| |
| #define DA9063_LDO(regl_name, min_mV, step_mV, max_mV) \ |
| .min_uV = (min_mV) * 1000, \ |
| .step_uV = (step_mV) * 1000, \ |
| .max_uV = (max_mV) * 1000, \ |
| .en_reg = DA9063_REG_##regl_name##_CONT, \ |
| .en_mask = DA9063_LDO_EN, \ |
| .vsel_reg = DA9063_REG_V##regl_name##_A, \ |
| .vsel_mask = DA9063_V##regl_name##_MASK, \ |
| .mode_reg = DA9063_REG_V##regl_name##_A \ |
| |
| /* This array is directly indexed so must stay in numerical order */ |
| static const struct da9063_reg_info da9063_ldo_info[] = { |
| { DA9063_LDO(LDO1, 600, 20, 1860) }, |
| { DA9063_LDO(LDO2, 600, 20, 1860) }, |
| { DA9063_LDO(LDO3, 900, 20, 3440) }, |
| { DA9063_LDO(LDO4, 900, 20, 3440) }, |
| { DA9063_LDO(LDO5, 900, 50, 3600) }, |
| { DA9063_LDO(LDO6, 900, 50, 3600) }, |
| { DA9063_LDO(LDO7, 900, 50, 3600) }, |
| { DA9063_LDO(LDO8, 900, 50, 3600) }, |
| { DA9063_LDO(LDO9, 950, 50, 3600) }, |
| { DA9063_LDO(LDO10, 900, 50, 3600) }, |
| { DA9063_LDO(LDO11, 900, 50, 3600) }, |
| }; |
| |
| static struct dm_regulator_mode da9063_buck_modes[] = { |
| { .id = DA9063_BUCKMODE_SLEEP, |
| .register_value = DA9063_BUCK_MODE_SLEEP, .name = "SLEEP" }, |
| { .id = DA9063_BUCKMODE_SYNC, |
| .register_value = DA9063_BUCK_MODE_SYNC, .name = "SYNC" }, |
| { .id = DA9063_BUCKMODE_AUTO, |
| .register_value = DA9063_BUCK_MODE_AUTO, .name = "AUTO" }, |
| }; |
| |
| #define DA9063_BUCK(regl_name, dt_name, \ |
| min_mV, step_mV, max_mV, \ |
| min_mA, step_mA, max_mA, _ilim_reg) \ |
| .dt_node_name = dt_name, \ |
| .min_uV = (min_mV) * 1000, \ |
| .step_uV = (step_mV) * 1000, \ |
| .max_uV = (max_mV) * 1000, \ |
| .min_uA = (min_mA) * 1000, \ |
| .step_uA = (step_mA) * 1000, \ |
| .max_uA = (max_mA) * 1000, \ |
| .en_reg = DA9063_REG_##regl_name##_CONT, \ |
| .en_mask = DA9063_BUCK_EN, \ |
| .vsel_reg = DA9063_REG_V##regl_name##_A, \ |
| .vsel_mask = DA9063_VBUCK_MASK, \ |
| .mode_reg = DA9063_REG_##regl_name##_CFG, \ |
| .ilim_reg = DA9063_REG_BUCK_ILIM_##_ilim_reg, \ |
| .ilim_mask = DA9063_##regl_name##_ILIM_MASK |
| |
| static const struct da9063_reg_info da9063_buck_info[] = { |
| /* mV mA */ |
| { DA9063_BUCK(BCORE1, "bcore1", 300, 10, 1570, 500, 100, 2000, C) }, |
| { DA9063_BUCK(BCORE2, "bcore2", 300, 10, 1570, 500, 100, 2000, C) }, |
| { DA9063_BUCK(BPRO, "bpro", 530, 10, 1800, 500, 100, 2000, B) }, |
| { DA9063_BUCK(BMEM, "bmem", 800, 20, 3340, 1500, 100, 3000, A) }, |
| { DA9063_BUCK(BIO, "bio", 800, 20, 3340, 1500, 100, 3000, A) }, |
| { DA9063_BUCK(BPERI, "bperi", 800, 20, 3340, 1500, 100, 3000, B) }, |
| }; |
| |
| static int da9063_get_enable(struct udevice *dev) |
| { |
| const struct da9063_priv *priv = dev->priv; |
| const struct da9063_reg_info *info = priv->reg_info; |
| int ret; |
| |
| ret = pmic_reg_read(dev->parent, info->en_reg); |
| if (ret < 0) |
| return ret; |
| |
| return ret & info->en_mask ? true : false; |
| } |
| |
| static int da9063_set_enable(struct udevice *dev, bool enable) |
| { |
| const struct da9063_priv *priv = dev->priv; |
| const struct da9063_reg_info *info = priv->reg_info; |
| |
| return pmic_clrsetbits(dev->parent, info->en_reg, |
| info->en_mask, enable ? info->en_mask : 0); |
| } |
| |
| static int da9063_get_voltage(struct udevice *dev) |
| { |
| const struct da9063_priv *priv = dev->priv; |
| const struct da9063_reg_info *info = priv->reg_info; |
| int ret; |
| |
| ret = pmic_reg_read(dev->parent, info->vsel_reg); |
| if (ret < 0) |
| return ret; |
| |
| return info->min_uV + (ret & info->vsel_mask) * info->step_uV; |
| } |
| |
| static int da9063_set_voltage(struct udevice *dev, int uV) |
| { |
| const struct da9063_priv *priv = dev->priv; |
| const struct da9063_reg_info *info = priv->reg_info; |
| uint sel; |
| |
| if (uV < info->min_uV || uV > info->max_uV) |
| return -EINVAL; |
| |
| sel = (uV - info->min_uV) / info->step_uV; |
| |
| return pmic_clrsetbits(dev->parent, info->vsel_reg, |
| info->vsel_mask, sel); |
| } |
| |
| static const struct dm_regulator_mode |
| *da9063_find_mode_by_id(int id, |
| const struct dm_regulator_mode *modes, |
| uint mode_count) |
| { |
| for (; mode_count; mode_count--) { |
| if (modes->id == id) |
| return modes; |
| modes++; |
| } |
| return NULL; |
| } |
| |
| static int ldo_get_mode(struct udevice *dev) |
| { |
| const struct da9063_priv *priv = dev->priv; |
| const struct da9063_reg_info *info = priv->reg_info; |
| int val; |
| |
| val = pmic_reg_read(dev->parent, info->mode_reg); |
| if (val < 0) |
| return val; |
| |
| if (val & DA9063_LDO_SL) |
| return DA9063_LDOMODE_SLEEP; |
| else |
| return DA9063_LDOMODE_NORMAL; |
| } |
| |
| static int ldo_set_mode(struct udevice *dev, int mode_id) |
| { |
| const struct da9063_priv *priv = dev->priv; |
| const struct da9063_reg_info *info = priv->reg_info; |
| const struct dm_regulator_mode *mode; |
| |
| mode = da9063_find_mode_by_id(mode_id, |
| da9063_ldo_modes, |
| ARRAY_SIZE(da9063_ldo_modes)); |
| if (!mode) |
| return -EINVAL; |
| |
| return pmic_clrsetbits(dev->parent, info->mode_reg, |
| DA9063_LDO_SL, mode->register_value); |
| } |
| |
| static int buck_get_mode(struct udevice *dev) |
| { |
| const struct da9063_priv *priv = dev->priv; |
| const struct da9063_reg_info *info = priv->reg_info; |
| int i; |
| int val; |
| |
| val = pmic_reg_read(dev->parent, info->mode_reg); |
| if (val < 0) |
| return val; |
| |
| val &= DA9063_BUCK_MODE_MASK; |
| if (val == DA9063_BUCK_MODE_MANUAL) { |
| val = pmic_reg_read(dev->parent, info->vsel_reg); |
| if (val < 0) |
| return val; |
| |
| if (val & DA9063_BUCK_SL) |
| return DA9063_BUCKMODE_SLEEP; |
| else |
| return DA9063_BUCKMODE_SYNC; |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(da9063_buck_modes); i++) { |
| if (da9063_buck_modes[i].register_value == val) |
| return da9063_buck_modes[i].id; |
| } |
| |
| return -EINVAL; |
| } |
| |
| static int buck_set_mode(struct udevice *dev, int mode_id) |
| { |
| const struct da9063_priv *priv = dev->priv; |
| const struct da9063_reg_info *info = priv->reg_info; |
| const struct dm_regulator_mode *mode; |
| |
| mode = da9063_find_mode_by_id(mode_id, |
| da9063_buck_modes, |
| ARRAY_SIZE(da9063_buck_modes)); |
| if (!mode) |
| return -EINVAL; |
| |
| return pmic_clrsetbits(dev->parent, info->mode_reg, |
| DA9063_BUCK_MODE_MASK, mode->register_value); |
| } |
| |
| static int buck_get_current_limit(struct udevice *dev) |
| { |
| const struct da9063_priv *priv = dev->priv; |
| const struct da9063_reg_info *info = priv->reg_info; |
| int val; |
| |
| val = pmic_reg_read(dev->parent, info->ilim_reg); |
| if (val < 0) |
| return val; |
| |
| val &= info->ilim_mask; |
| val >>= (ffs(info->ilim_mask) - 1); |
| |
| return info->min_uA + val * info->step_uA; |
| } |
| |
| static int buck_set_current_limit(struct udevice *dev, int uA) |
| { |
| const struct da9063_priv *priv = dev->priv; |
| const struct da9063_reg_info *info = priv->reg_info; |
| int val; |
| |
| if (uA < info->min_uA || uA > info->max_uA) |
| return -EINVAL; |
| |
| val = (uA - info->min_uA) / info->step_uA; |
| val <<= (ffs(info->ilim_mask) - 1); |
| |
| return pmic_clrsetbits(dev->parent, info->ilim_reg, |
| info->ilim_mask, val); |
| } |
| |
| static int da9063_ldo_probe(struct udevice *dev) |
| { |
| struct dm_regulator_uclass_platdata *uc_pdata; |
| struct da9063_priv *priv = dev->priv; |
| |
| /* LDOs are named numerically in DT so can directly index */ |
| if (dev->driver_data < 1 || |
| dev->driver_data > ARRAY_SIZE(da9063_ldo_info)) |
| return -EINVAL; |
| priv->reg_info = &da9063_ldo_info[dev->driver_data - 1]; |
| |
| uc_pdata = dev_get_uclass_platdata(dev); |
| uc_pdata->type = REGULATOR_TYPE_LDO; |
| uc_pdata->mode = da9063_ldo_modes; |
| uc_pdata->mode_count = ARRAY_SIZE(da9063_ldo_modes); |
| |
| return 0; |
| } |
| |
| static int da9063_buck_probe(struct udevice *dev) |
| { |
| struct dm_regulator_uclass_platdata *uc_pdata; |
| struct da9063_priv *priv = dev->priv; |
| int i; |
| |
| /* Bucks have names rather than numbers so need to match with DT */ |
| for (i = 0; i < ARRAY_SIZE(da9063_buck_info); i++) { |
| const struct da9063_reg_info *info = &da9063_buck_info[i]; |
| |
| if (!strcmp(info->dt_node_name, dev->name)) { |
| priv->reg_info = info; |
| break; |
| } |
| } |
| if (!priv->reg_info) |
| return -ENODEV; |
| |
| uc_pdata = dev_get_uclass_platdata(dev); |
| uc_pdata->type = REGULATOR_TYPE_BUCK; |
| uc_pdata->mode = da9063_buck_modes; |
| uc_pdata->mode_count = ARRAY_SIZE(da9063_buck_modes); |
| |
| return 0; |
| } |
| |
| static const struct dm_regulator_ops da9063_ldo_ops = { |
| .get_value = da9063_get_voltage, |
| .set_value = da9063_set_voltage, |
| .get_enable = da9063_get_enable, |
| .set_enable = da9063_set_enable, |
| .get_mode = ldo_get_mode, |
| .set_mode = ldo_set_mode, |
| }; |
| |
| U_BOOT_DRIVER(da9063_ldo) = { |
| .name = DA9063_LDO_DRIVER, |
| .id = UCLASS_REGULATOR, |
| .ops = &da9063_ldo_ops, |
| .probe = da9063_ldo_probe, |
| .priv_auto_alloc_size = sizeof(struct da9063_priv), |
| }; |
| |
| static const struct dm_regulator_ops da9063_buck_ops = { |
| .get_value = da9063_get_voltage, |
| .set_value = da9063_set_voltage, |
| .get_enable = da9063_get_enable, |
| .set_enable = da9063_set_enable, |
| .get_mode = buck_get_mode, |
| .set_mode = buck_set_mode, |
| .get_current = buck_get_current_limit, |
| .set_current = buck_set_current_limit, |
| }; |
| |
| U_BOOT_DRIVER(da9063_buck) = { |
| .name = DA9063_BUCK_DRIVER, |
| .id = UCLASS_REGULATOR, |
| .ops = &da9063_buck_ops, |
| .probe = da9063_buck_probe, |
| .priv_auto_alloc_size = sizeof(struct da9063_priv), |
| }; |