regulator: Refactor to use one da9052_ldo_ops/da9052_dcdc_ops for all LDOs/DCDCs
In current implementation, da9052_ldo_ops and da9052_ldo5_6_ops are very similar, only the set_voltage is slightly different. da9052_buckperi_ops and da9052_dcdc_ops are also similar. This patch adds da9052_regulator_set_voltage for the set_voltage callback used by all LDOs and DCDCs. Rework da9052_get_regulator_voltage_sel and da9052_set_dcdc_voltage to make it possible to be shared by all DCDCs. Rework da9052_list_voltage to make it to be shared by all DCDCs and LDOs. Then we can remove da9052_ldo5_6_ops and da9052_buckperi_ops. We can also remove DA9052_LDO5_6 and DA9052_BUCKPERI macros which is not used now. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>hifive-unleashed-5.1
Axel Lin
Mark Brown
parent
9210f05b4e
commit
0ec446ea9a
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@ -189,36 +189,23 @@ static int da9052_dcdc_set_current_limit(struct regulator_dev *rdev, int min_uA,
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reg_val << 6);
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}
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static int da9052_list_buckperi_voltage(struct regulator_dev *rdev,
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unsigned int selector)
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{
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struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
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struct da9052_regulator_info *info = regulator->info;
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int volt_uV;
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if ((regulator->da9052->chip_id == DA9052) &&
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(selector >= DA9052_BUCK_PERI_REG_MAP_UPTO_3uV)) {
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volt_uV = ((DA9052_BUCK_PERI_REG_MAP_UPTO_3uV * info->step_uV)
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+ info->min_uV);
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volt_uV += (selector - DA9052_BUCK_PERI_REG_MAP_UPTO_3uV)
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* (DA9052_BUCK_PERI_3uV_STEP);
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} else
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volt_uV = (selector * info->step_uV) + info->min_uV;
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if (volt_uV > info->max_uV)
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return -EINVAL;
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return volt_uV;
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}
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static int da9052_list_voltage(struct regulator_dev *rdev,
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unsigned int selector)
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{
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struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
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struct da9052_regulator_info *info = regulator->info;
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int id = rdev_get_id(rdev);
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int volt_uV;
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volt_uV = info->min_uV + info->step_uV * selector;
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if ((id == DA9052_ID_BUCK4) && (regulator->da9052->chip_id == DA9052)
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&& (selector >= DA9052_BUCK_PERI_REG_MAP_UPTO_3uV)) {
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volt_uV = ((DA9052_BUCK_PERI_REG_MAP_UPTO_3uV * info->step_uV)
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+ info->min_uV);
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volt_uV += (selector - DA9052_BUCK_PERI_REG_MAP_UPTO_3uV)
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* (DA9052_BUCK_PERI_3uV_STEP);
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} else {
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volt_uV = (selector * info->step_uV) + info->min_uV;
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}
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if (volt_uV > info->max_uV)
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return -EINVAL;
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@ -226,13 +213,13 @@ static int da9052_list_voltage(struct regulator_dev *rdev,
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return volt_uV;
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}
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static int da9052_regulator_set_voltage_int(struct regulator_dev *rdev,
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static int da9052_regulator_set_voltage(struct regulator_dev *rdev,
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int min_uV, int max_uV,
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unsigned int *selector)
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{
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struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
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struct da9052_regulator_info *info = regulator->info;
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int offset = rdev_get_id(rdev);
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int id = rdev_get_id(rdev);
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int ret;
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ret = verify_range(info, min_uV, max_uV);
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@ -242,62 +229,40 @@ static int da9052_regulator_set_voltage_int(struct regulator_dev *rdev,
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if (min_uV < info->min_uV)
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min_uV = info->min_uV;
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*selector = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
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if ((id == DA9052_ID_BUCK4) && (regulator->da9052->chip_id == DA9052)
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&& (min_uV >= DA9052_CONST_3uV)) {
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*selector = DA9052_BUCK_PERI_REG_MAP_UPTO_3uV +
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DIV_ROUND_UP(min_uV - DA9052_CONST_3uV,
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DA9052_BUCK_PERI_3uV_STEP);
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} else {
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*selector = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
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}
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ret = da9052_list_voltage(rdev, *selector);
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if (ret < 0)
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return ret;
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return da9052_reg_update(regulator->da9052,
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DA9052_BUCKCORE_REG + offset,
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ret = da9052_reg_update(regulator->da9052,
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DA9052_BUCKCORE_REG + id,
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(1 << info->volt_shift) - 1, *selector);
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}
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static int da9052_set_ldo_voltage(struct regulator_dev *rdev,
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int min_uV, int max_uV,
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unsigned int *selector)
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{
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return da9052_regulator_set_voltage_int(rdev, min_uV, max_uV, selector);
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}
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static int da9052_set_ldo5_6_voltage(struct regulator_dev *rdev,
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int min_uV, int max_uV,
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unsigned int *selector)
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{
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struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
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struct da9052_regulator_info *info = regulator->info;
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int ret;
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ret = da9052_regulator_set_voltage_int(rdev, min_uV, max_uV, selector);
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if (ret < 0)
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return ret;
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/* Some LDOs are DVC controlled which requires enabling of
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* the LDO activate bit to implment the changes on the
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* LDO output.
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*/
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return da9052_reg_update(regulator->da9052, DA9052_SUPPLY_REG,
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info->activate_bit, info->activate_bit);
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}
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/* Some LDOs and DCDCs are DVC controlled which requires enabling of
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* the activate bit to implment the changes on the output.
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*/
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switch (id) {
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case DA9052_ID_BUCK1:
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case DA9052_ID_BUCK2:
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case DA9052_ID_BUCK3:
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case DA9052_ID_LDO2:
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case DA9052_ID_LDO3:
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ret = da9052_reg_update(regulator->da9052, DA9052_SUPPLY_REG,
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info->activate_bit, info->activate_bit);
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break;
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}
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static int da9052_set_dcdc_voltage(struct regulator_dev *rdev,
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int min_uV, int max_uV,
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unsigned int *selector)
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{
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struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
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struct da9052_regulator_info *info = regulator->info;
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int ret;
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ret = da9052_regulator_set_voltage_int(rdev, min_uV, max_uV, selector);
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if (ret < 0)
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return ret;
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/* Some DCDCs are DVC controlled which requires enabling of
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* the DCDC activate bit to implment the changes on the
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* DCDC output.
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*/
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return da9052_reg_update(regulator->da9052, DA9052_SUPPLY_REG,
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info->activate_bit, info->activate_bit);
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return ret;
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}
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static int da9052_get_regulator_voltage_sel(struct regulator_dev *rdev)
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@ -316,69 +281,8 @@ static int da9052_get_regulator_voltage_sel(struct regulator_dev *rdev)
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return ret;
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}
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static int da9052_set_buckperi_voltage(struct regulator_dev *rdev, int min_uV,
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int max_uV, unsigned int *selector)
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{
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struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
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struct da9052_regulator_info *info = regulator->info;
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int offset = rdev_get_id(rdev);
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int ret;
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ret = verify_range(info, min_uV, max_uV);
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if (ret < 0)
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return ret;
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if (min_uV < info->min_uV)
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min_uV = info->min_uV;
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if ((regulator->da9052->chip_id == DA9052) &&
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(min_uV >= DA9052_CONST_3uV))
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*selector = DA9052_BUCK_PERI_REG_MAP_UPTO_3uV +
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DIV_ROUND_UP(min_uV - DA9052_CONST_3uV,
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DA9052_BUCK_PERI_3uV_STEP);
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else
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*selector = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
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ret = da9052_list_buckperi_voltage(rdev, *selector);
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if (ret < 0)
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return ret;
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return da9052_reg_update(regulator->da9052,
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DA9052_BUCKCORE_REG + offset,
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(1 << info->volt_shift) - 1, *selector);
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}
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static int da9052_get_buckperi_voltage_sel(struct regulator_dev *rdev)
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{
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struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
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struct da9052_regulator_info *info = regulator->info;
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int offset = rdev_get_id(rdev);
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int ret;
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ret = da9052_reg_read(regulator->da9052, DA9052_BUCKCORE_REG + offset);
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if (ret < 0)
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return ret;
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ret &= ((1 << info->volt_shift) - 1);
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return ret;
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}
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static struct regulator_ops da9052_buckperi_ops = {
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.list_voltage = da9052_list_buckperi_voltage,
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.get_voltage_sel = da9052_get_buckperi_voltage_sel,
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.set_voltage = da9052_set_buckperi_voltage,
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.get_current_limit = da9052_dcdc_get_current_limit,
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.set_current_limit = da9052_dcdc_set_current_limit,
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.is_enabled = da9052_regulator_is_enabled,
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.enable = da9052_regulator_enable,
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.disable = da9052_regulator_disable,
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};
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static struct regulator_ops da9052_dcdc_ops = {
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.set_voltage = da9052_set_dcdc_voltage,
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.set_voltage = da9052_regulator_set_voltage,
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.get_current_limit = da9052_dcdc_get_current_limit,
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.set_current_limit = da9052_dcdc_set_current_limit,
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@ -389,18 +293,8 @@ static struct regulator_ops da9052_dcdc_ops = {
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.disable = da9052_regulator_disable,
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};
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static struct regulator_ops da9052_ldo5_6_ops = {
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.set_voltage = da9052_set_ldo5_6_voltage,
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.list_voltage = da9052_list_voltage,
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.get_voltage_sel = da9052_get_regulator_voltage_sel,
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.is_enabled = da9052_regulator_is_enabled,
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.enable = da9052_regulator_enable,
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.disable = da9052_regulator_disable,
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};
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static struct regulator_ops da9052_ldo_ops = {
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.set_voltage = da9052_set_ldo_voltage,
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.set_voltage = da9052_regulator_set_voltage,
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.list_voltage = da9052_list_voltage,
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.get_voltage_sel = da9052_get_regulator_voltage_sel,
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@ -409,24 +303,6 @@ static struct regulator_ops da9052_ldo_ops = {
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.disable = da9052_regulator_disable,
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};
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#define DA9052_LDO5_6(_id, step, min, max, sbits, ebits, abits) \
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{\
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.reg_desc = {\
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.name = #_id,\
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.ops = &da9052_ldo5_6_ops,\
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.type = REGULATOR_VOLTAGE,\
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.id = DA9052_ID_##_id,\
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.n_voltages = (max - min) / step + 1, \
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.owner = THIS_MODULE,\
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},\
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.min_uV = (min) * 1000,\
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.max_uV = (max) * 1000,\
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.step_uV = (step) * 1000,\
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.volt_shift = (sbits),\
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.en_bit = (ebits),\
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.activate_bit = (abits),\
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}
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#define DA9052_LDO(_id, step, min, max, sbits, ebits, abits) \
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{\
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.reg_desc = {\
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@ -463,32 +339,14 @@ static struct regulator_ops da9052_ldo_ops = {
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.activate_bit = (abits),\
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}
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#define DA9052_BUCKPERI(_id, step, min, max, sbits, ebits, abits) \
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{\
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.reg_desc = {\
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.name = #_id,\
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.ops = &da9052_buckperi_ops,\
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.type = REGULATOR_VOLTAGE,\
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.id = DA9052_ID_##_id,\
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.n_voltages = (max - min) / step + 1, \
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.owner = THIS_MODULE,\
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},\
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.min_uV = (min) * 1000,\
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.max_uV = (max) * 1000,\
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.step_uV = (step) * 1000,\
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.volt_shift = (sbits),\
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.en_bit = (ebits),\
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.activate_bit = (abits),\
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}
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static struct da9052_regulator_info da9052_regulator_info[] = {
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DA9052_DCDC(BUCK1, 25, 500, 2075, 6, 6, DA9052_SUPPLY_VBCOREGO),
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DA9052_DCDC(BUCK2, 25, 500, 2075, 6, 6, DA9052_SUPPLY_VBPROGO),
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DA9052_DCDC(BUCK3, 25, 925, 2500, 6, 6, DA9052_SUPPLY_VBMEMGO),
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DA9052_BUCKPERI(BUCK4, 50, 1800, 3600, 5, 6, 0),
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DA9052_DCDC(BUCK4, 50, 1800, 3600, 5, 6, 0),
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DA9052_LDO(LDO1, 50, 600, 1800, 5, 6, 0),
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DA9052_LDO5_6(LDO2, 25, 600, 1800, 6, 6, DA9052_SUPPLY_VLDO2GO),
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DA9052_LDO5_6(LDO3, 25, 1725, 3300, 6, 6, DA9052_SUPPLY_VLDO3GO),
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DA9052_LDO(LDO2, 25, 600, 1800, 6, 6, DA9052_SUPPLY_VLDO2GO),
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DA9052_LDO(LDO3, 25, 1725, 3300, 6, 6, DA9052_SUPPLY_VLDO3GO),
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DA9052_LDO(LDO4, 25, 1725, 3300, 6, 6, 0),
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DA9052_LDO(LDO5, 50, 1200, 3600, 6, 6, 0),
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DA9052_LDO(LDO6, 50, 1200, 3600, 6, 6, 0),
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@ -502,10 +360,10 @@ static struct da9052_regulator_info da9053_regulator_info[] = {
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DA9052_DCDC(BUCK1, 25, 500, 2075, 6, 6, DA9052_SUPPLY_VBCOREGO),
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DA9052_DCDC(BUCK2, 25, 500, 2075, 6, 6, DA9052_SUPPLY_VBPROGO),
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DA9052_DCDC(BUCK3, 25, 925, 2500, 6, 6, DA9052_SUPPLY_VBMEMGO),
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DA9052_BUCKPERI(BUCK4, 25, 925, 2500, 6, 6, 0),
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DA9052_DCDC(BUCK4, 25, 925, 2500, 6, 6, 0),
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DA9052_LDO(LDO1, 50, 600, 1800, 5, 6, 0),
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DA9052_LDO5_6(LDO2, 25, 600, 1800, 6, 6, DA9052_SUPPLY_VLDO2GO),
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DA9052_LDO5_6(LDO3, 25, 1725, 3300, 6, 6, DA9052_SUPPLY_VLDO3GO),
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DA9052_LDO(LDO2, 25, 600, 1800, 6, 6, DA9052_SUPPLY_VLDO2GO),
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DA9052_LDO(LDO3, 25, 1725, 3300, 6, 6, DA9052_SUPPLY_VLDO3GO),
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DA9052_LDO(LDO4, 25, 1725, 3300, 6, 6, 0),
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DA9052_LDO(LDO5, 50, 1200, 3600, 6, 6, 0),
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DA9052_LDO(LDO6, 50, 1200, 3600, 6, 6, 0),
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