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- // 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),
- };
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