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regulator: tps65218: add support for LS3 current regulator
Add support for TPS65218 LS3 current regulator, which is capable of 4 current input limit modes: 100, 200, 500, and 1000 uA. Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Nikita Kiryanov
Mark Brown
parent
8005c49d9a
commit
c0ea88b890
3 changed files with 115 additions and 31 deletions
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@ -27,19 +27,22 @@
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#include <linux/regulator/machine.h>
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#include <linux/mfd/tps65218.h>
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enum tps65218_regulators { DCDC1, DCDC2, DCDC3, DCDC4, DCDC5, DCDC6, LDO1 };
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enum tps65218_regulators { DCDC1, DCDC2, DCDC3, DCDC4,
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DCDC5, DCDC6, LDO1, LS3 };
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#define TPS65218_REGULATOR(_name, _id, _ops, _n, _vr, _vm, _er, _em, \
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_lr, _nlr, _delay, _fuv) \
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#define TPS65218_REGULATOR(_name, _id, _type, _ops, _n, _vr, _vm, _er, _em, \
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_cr, _cm, _lr, _nlr, _delay, _fuv) \
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{ \
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.name = _name, \
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.id = _id, \
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.ops = &_ops, \
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.n_voltages = _n, \
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.type = REGULATOR_VOLTAGE, \
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.type = _type, \
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.owner = THIS_MODULE, \
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.vsel_reg = _vr, \
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.vsel_mask = _vm, \
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.csel_reg = _cr, \
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.csel_mask = _cm, \
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.enable_reg = _er, \
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.enable_mask = _em, \
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.volt_table = NULL, \
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@ -80,6 +83,7 @@ static struct tps_info tps65218_pmic_regs[] = {
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TPS65218_INFO(DCDC5, "DCDC5", 1000000, 1000000),
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TPS65218_INFO(DCDC6, "DCDC6", 1800000, 1800000),
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TPS65218_INFO(LDO1, "LDO1", 900000, 3400000),
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TPS65218_INFO(LS3, "LS3", -1, -1),
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};
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#define TPS65218_OF_MATCH(comp, label) \
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@ -96,6 +100,7 @@ static const struct of_device_id tps65218_of_match[] = {
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TPS65218_OF_MATCH("ti,tps65218-dcdc5", tps65218_pmic_regs[DCDC5]),
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TPS65218_OF_MATCH("ti,tps65218-dcdc6", tps65218_pmic_regs[DCDC6]),
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TPS65218_OF_MATCH("ti,tps65218-ldo1", tps65218_pmic_regs[LDO1]),
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TPS65218_OF_MATCH("ti,tps65218-ls3", tps65218_pmic_regs[LS3]),
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{ }
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};
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MODULE_DEVICE_TABLE(of, tps65218_of_match);
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@ -175,6 +180,68 @@ static struct regulator_ops tps65218_ldo1_dcdc34_ops = {
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.map_voltage = regulator_map_voltage_linear_range,
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};
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static const int ls3_currents[] = { 100, 200, 500, 1000 };
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static int tps65218_pmic_set_input_current_lim(struct regulator_dev *dev,
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int lim_uA)
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{
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unsigned int index = 0;
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unsigned int num_currents = ARRAY_SIZE(ls3_currents);
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struct tps65218 *tps = rdev_get_drvdata(dev);
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while (index < num_currents && ls3_currents[index] != lim_uA)
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index++;
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if (index == num_currents)
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return -EINVAL;
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return tps65218_set_bits(tps, dev->desc->csel_reg, dev->desc->csel_mask,
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index << 2, TPS65218_PROTECT_L1);
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}
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static int tps65218_pmic_set_current_limit(struct regulator_dev *dev,
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int min_uA, int max_uA)
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{
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int index = 0;
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unsigned int num_currents = ARRAY_SIZE(ls3_currents);
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struct tps65218 *tps = rdev_get_drvdata(dev);
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while (index < num_currents && ls3_currents[index] < max_uA)
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index++;
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index--;
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if (index < 0 || ls3_currents[index] < min_uA)
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return -EINVAL;
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return tps65218_set_bits(tps, dev->desc->csel_reg, dev->desc->csel_mask,
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index << 2, TPS65218_PROTECT_L1);
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}
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static int tps65218_pmic_get_current_limit(struct regulator_dev *dev)
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{
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int retval;
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unsigned int index;
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struct tps65218 *tps = rdev_get_drvdata(dev);
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retval = tps65218_reg_read(tps, dev->desc->csel_reg, &index);
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if (retval < 0)
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return retval;
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index = (index & dev->desc->csel_mask) >> 2;
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return ls3_currents[index];
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}
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static struct regulator_ops tps65218_ls3_ops = {
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.is_enabled = regulator_is_enabled_regmap,
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.enable = tps65218_pmic_enable,
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.disable = tps65218_pmic_disable,
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.set_input_current_limit = tps65218_pmic_set_input_current_lim,
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.set_current_limit = tps65218_pmic_set_current_limit,
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.get_current_limit = tps65218_pmic_get_current_limit,
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};
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/* Operations permitted on DCDC5, DCDC6 */
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static struct regulator_ops tps65218_dcdc56_pmic_ops = {
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.is_enabled = regulator_is_enabled_regmap,
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@ -183,36 +250,46 @@ static struct regulator_ops tps65218_dcdc56_pmic_ops = {
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};
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static const struct regulator_desc regulators[] = {
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TPS65218_REGULATOR("DCDC1", TPS65218_DCDC_1, tps65218_dcdc12_ops, 64,
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TPS65218_REG_CONTROL_DCDC1,
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TPS65218_CONTROL_DCDC1_MASK,
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TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC1_EN,
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dcdc1_dcdc2_ranges, 2, 4000, 0),
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TPS65218_REGULATOR("DCDC2", TPS65218_DCDC_2, tps65218_dcdc12_ops, 64,
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TPS65218_REG_CONTROL_DCDC2,
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TPS65218_CONTROL_DCDC2_MASK,
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TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC2_EN,
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dcdc1_dcdc2_ranges, 2, 4000, 0),
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TPS65218_REGULATOR("DCDC3", TPS65218_DCDC_3, tps65218_ldo1_dcdc34_ops,
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64, TPS65218_REG_CONTROL_DCDC3,
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TPS65218_REGULATOR("DCDC1", TPS65218_DCDC_1, REGULATOR_VOLTAGE,
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tps65218_dcdc12_ops, 64, TPS65218_REG_CONTROL_DCDC1,
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TPS65218_CONTROL_DCDC1_MASK, TPS65218_REG_ENABLE1,
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TPS65218_ENABLE1_DC1_EN, 0, 0, dcdc1_dcdc2_ranges,
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2, 4000, 0),
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TPS65218_REGULATOR("DCDC2", TPS65218_DCDC_2, REGULATOR_VOLTAGE,
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tps65218_dcdc12_ops, 64, TPS65218_REG_CONTROL_DCDC2,
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TPS65218_CONTROL_DCDC2_MASK, TPS65218_REG_ENABLE1,
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TPS65218_ENABLE1_DC2_EN, 0, 0, dcdc1_dcdc2_ranges,
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2, 4000, 0),
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TPS65218_REGULATOR("DCDC3", TPS65218_DCDC_3, REGULATOR_VOLTAGE,
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tps65218_ldo1_dcdc34_ops, 64,
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TPS65218_REG_CONTROL_DCDC3,
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TPS65218_CONTROL_DCDC3_MASK, TPS65218_REG_ENABLE1,
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TPS65218_ENABLE1_DC3_EN, ldo1_dcdc3_ranges, 2, 0, 0),
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TPS65218_REGULATOR("DCDC4", TPS65218_DCDC_4, tps65218_ldo1_dcdc34_ops,
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53, TPS65218_REG_CONTROL_DCDC4,
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TPS65218_CONTROL_DCDC4_MASK,
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TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC4_EN,
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dcdc4_ranges, 2, 0, 0),
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TPS65218_REGULATOR("DCDC5", TPS65218_DCDC_5, tps65218_dcdc56_pmic_ops,
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1, -1, -1, TPS65218_REG_ENABLE1,
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TPS65218_ENABLE1_DC5_EN, NULL, 0, 0, 1000000),
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TPS65218_REGULATOR("DCDC6", TPS65218_DCDC_6, tps65218_dcdc56_pmic_ops,
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1, -1, -1, TPS65218_REG_ENABLE1,
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TPS65218_ENABLE1_DC6_EN, NULL, 0, 0, 1800000),
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TPS65218_REGULATOR("LDO1", TPS65218_LDO_1, tps65218_ldo1_dcdc34_ops, 64,
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TPS65218_ENABLE1_DC3_EN, 0, 0, ldo1_dcdc3_ranges, 2,
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0, 0),
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TPS65218_REGULATOR("DCDC4", TPS65218_DCDC_4, REGULATOR_VOLTAGE,
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tps65218_ldo1_dcdc34_ops, 53,
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TPS65218_REG_CONTROL_DCDC4,
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TPS65218_CONTROL_DCDC4_MASK, TPS65218_REG_ENABLE1,
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TPS65218_ENABLE1_DC4_EN, 0, 0, dcdc4_ranges, 2,
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0, 0),
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TPS65218_REGULATOR("DCDC5", TPS65218_DCDC_5, REGULATOR_VOLTAGE,
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tps65218_dcdc56_pmic_ops, 1, -1, -1,
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TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC5_EN, 0, 0,
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NULL, 0, 0, 1000000),
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TPS65218_REGULATOR("DCDC6", TPS65218_DCDC_6, REGULATOR_VOLTAGE,
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tps65218_dcdc56_pmic_ops, 1, -1, -1,
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TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC6_EN, 0, 0,
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NULL, 0, 0, 1800000),
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TPS65218_REGULATOR("LDO1", TPS65218_LDO_1, REGULATOR_VOLTAGE,
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tps65218_ldo1_dcdc34_ops, 64,
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TPS65218_REG_CONTROL_LDO1,
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TPS65218_CONTROL_LDO1_MASK, TPS65218_REG_ENABLE2,
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TPS65218_ENABLE2_LDO1_EN, ldo1_dcdc3_ranges,
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TPS65218_ENABLE2_LDO1_EN, 0, 0, ldo1_dcdc3_ranges,
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2, 0, 0),
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TPS65218_REGULATOR("LS3", TPS65218_LS_3, REGULATOR_CURRENT,
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tps65218_ls3_ops, 0, 0, 0, TPS65218_REG_ENABLE2,
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TPS65218_ENABLE2_LS3_EN, TPS65218_REG_CONFIG2,
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TPS65218_CONFIG2_LS3ILIM_MASK, NULL, 0, 0, 0),
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};
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static int tps65218_regulator_probe(struct platform_device *pdev)
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@ -200,6 +200,8 @@ enum tps65218_regulator_id {
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TPS65218_DCDC_4,
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TPS65218_DCDC_5,
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TPS65218_DCDC_6,
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/* LS's */
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TPS65218_LS_3,
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/* LDOs */
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TPS65218_LDO_1,
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};
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@ -210,8 +212,11 @@ enum tps65218_regulator_id {
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#define TPS65218_NUM_DCDC 6
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/* Number of LDO voltage regulators available */
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#define TPS65218_NUM_LDO 1
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/* Number of total LS current regulators available */
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#define TPS65218_NUM_LS 1
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/* Number of total regulators available */
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#define TPS65218_NUM_REGULATOR (TPS65218_NUM_DCDC + TPS65218_NUM_LDO)
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#define TPS65218_NUM_REGULATOR (TPS65218_NUM_DCDC + TPS65218_NUM_LDO \
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+ TPS65218_NUM_LS)
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/* Define the TPS65218 IRQ numbers */
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enum tps65218_irqs {
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@ -302,6 +302,8 @@ struct regulator_desc {
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unsigned int vsel_reg;
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unsigned int vsel_mask;
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unsigned int csel_reg;
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unsigned int csel_mask;
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unsigned int apply_reg;
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unsigned int apply_bit;
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unsigned int enable_reg;
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