forked from Minki/linux
regulator: act8865: prepare support for other act88xx devices
This patch prepares support for other devices in the act88xx family of PMUs manufactured by Active-Semi. http://www.active-semi.com/products/power-management-units/act88xx/ Signed-off-by: Beniamino Galvani <b.galvani@gmail.com> Tested-by: Wenyou Yang <wenyou.yang@atmel.com> Reviewed-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Beniamino Galvani
Mark Brown
parent
bbb83f38a8
commit
50a03e35b0
@ -1,6 +1,7 @@
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/*
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* act8865-regulator.c - Voltage regulation for the active-semi ACT8865
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* http://www.active-semi.com/sheets/ACT8865_Datasheet.pdf
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* act8865-regulator.c - Voltage regulation for active-semi ACT88xx PMUs
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*
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* http://www.active-semi.com/products/power-management-units/act88xx/
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*
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* Copyright (C) 2013 Atmel Corporation
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*
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@ -70,7 +71,7 @@ static const struct regmap_config act8865_regmap_config = {
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.val_bits = 8,
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};
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static const struct regulator_linear_range act8865_volatge_ranges[] = {
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static const struct regulator_linear_range act8865_voltage_ranges[] = {
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REGULATOR_LINEAR_RANGE(600000, 0, 23, 25000),
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REGULATOR_LINEAR_RANGE(1200000, 24, 47, 50000),
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REGULATOR_LINEAR_RANGE(2400000, 48, 63, 100000),
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@ -86,110 +87,35 @@ static struct regulator_ops act8865_ops = {
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.is_enabled = regulator_is_enabled_regmap,
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};
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static const struct regulator_desc act8865_reg[] = {
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{
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.name = "DCDC_REG1",
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.id = ACT8865_ID_DCDC1,
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.ops = &act8865_ops,
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.type = REGULATOR_VOLTAGE,
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.n_voltages = ACT8865_VOLTAGE_NUM,
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.linear_ranges = act8865_volatge_ranges,
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.n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges),
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.vsel_reg = ACT8865_DCDC1_VSET1,
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.vsel_mask = ACT8865_VSEL_MASK,
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.enable_reg = ACT8865_DCDC1_CTRL,
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.enable_mask = ACT8865_ENA,
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.owner = THIS_MODULE,
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},
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{
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.name = "DCDC_REG2",
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.id = ACT8865_ID_DCDC2,
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.ops = &act8865_ops,
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.type = REGULATOR_VOLTAGE,
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.n_voltages = ACT8865_VOLTAGE_NUM,
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.linear_ranges = act8865_volatge_ranges,
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.n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges),
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.vsel_reg = ACT8865_DCDC2_VSET1,
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.vsel_mask = ACT8865_VSEL_MASK,
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.enable_reg = ACT8865_DCDC2_CTRL,
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.enable_mask = ACT8865_ENA,
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.owner = THIS_MODULE,
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},
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{
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.name = "DCDC_REG3",
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.id = ACT8865_ID_DCDC3,
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.ops = &act8865_ops,
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.type = REGULATOR_VOLTAGE,
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.n_voltages = ACT8865_VOLTAGE_NUM,
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.linear_ranges = act8865_volatge_ranges,
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.n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges),
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.vsel_reg = ACT8865_DCDC3_VSET1,
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.vsel_mask = ACT8865_VSEL_MASK,
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.enable_reg = ACT8865_DCDC3_CTRL,
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.enable_mask = ACT8865_ENA,
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.owner = THIS_MODULE,
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},
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{
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.name = "LDO_REG1",
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.id = ACT8865_ID_LDO1,
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.ops = &act8865_ops,
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.type = REGULATOR_VOLTAGE,
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.n_voltages = ACT8865_VOLTAGE_NUM,
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.linear_ranges = act8865_volatge_ranges,
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.n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges),
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.vsel_reg = ACT8865_LDO1_VSET,
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.vsel_mask = ACT8865_VSEL_MASK,
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.enable_reg = ACT8865_LDO1_CTRL,
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.enable_mask = ACT8865_ENA,
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.owner = THIS_MODULE,
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},
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{
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.name = "LDO_REG2",
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.id = ACT8865_ID_LDO2,
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.ops = &act8865_ops,
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.type = REGULATOR_VOLTAGE,
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.n_voltages = ACT8865_VOLTAGE_NUM,
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.linear_ranges = act8865_volatge_ranges,
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.n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges),
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.vsel_reg = ACT8865_LDO2_VSET,
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.vsel_mask = ACT8865_VSEL_MASK,
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.enable_reg = ACT8865_LDO2_CTRL,
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.enable_mask = ACT8865_ENA,
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.owner = THIS_MODULE,
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},
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{
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.name = "LDO_REG3",
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.id = ACT8865_ID_LDO3,
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.ops = &act8865_ops,
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.type = REGULATOR_VOLTAGE,
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.n_voltages = ACT8865_VOLTAGE_NUM,
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.linear_ranges = act8865_volatge_ranges,
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.n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges),
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.vsel_reg = ACT8865_LDO3_VSET,
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.vsel_mask = ACT8865_VSEL_MASK,
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.enable_reg = ACT8865_LDO3_CTRL,
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.enable_mask = ACT8865_ENA,
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.owner = THIS_MODULE,
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},
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{
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.name = "LDO_REG4",
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.id = ACT8865_ID_LDO4,
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.ops = &act8865_ops,
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.type = REGULATOR_VOLTAGE,
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.n_voltages = ACT8865_VOLTAGE_NUM,
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.linear_ranges = act8865_volatge_ranges,
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.n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges),
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.vsel_reg = ACT8865_LDO4_VSET,
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.vsel_mask = ACT8865_VSEL_MASK,
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.enable_reg = ACT8865_LDO4_CTRL,
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.enable_mask = ACT8865_ENA,
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.owner = THIS_MODULE,
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},
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#define ACT88xx_REG(_name, _family, _id, _vsel_reg) \
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[_family##_ID_##_id] = { \
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.name = _name, \
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.id = _family##_ID_##_id, \
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.type = REGULATOR_VOLTAGE, \
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.ops = &act8865_ops, \
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.n_voltages = ACT8865_VOLTAGE_NUM, \
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.linear_ranges = act8865_voltage_ranges, \
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.n_linear_ranges = ARRAY_SIZE(act8865_voltage_ranges), \
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.vsel_reg = _family##_##_id##_##_vsel_reg, \
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.vsel_mask = ACT8865_VSEL_MASK, \
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.enable_reg = _family##_##_id##_CTRL, \
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.enable_mask = ACT8865_ENA, \
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.owner = THIS_MODULE, \
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}
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static const struct regulator_desc act8865_regulators[] = {
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ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET1),
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ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET1),
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ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET1),
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ACT88xx_REG("LDO_REG1", ACT8865, LDO1, VSET),
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ACT88xx_REG("LDO_REG2", ACT8865, LDO2, VSET),
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ACT88xx_REG("LDO_REG3", ACT8865, LDO3, VSET),
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ACT88xx_REG("LDO_REG4", ACT8865, LDO4, VSET),
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};
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#ifdef CONFIG_OF
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static const struct of_device_id act8865_dt_ids[] = {
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{ .compatible = "active-semi,act8865" },
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{ .compatible = "active-semi,act8865", .data = (void *)ACT8865 },
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{ }
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};
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MODULE_DEVICE_TABLE(of, act8865_dt_ids);
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@ -206,7 +132,9 @@ static struct of_regulator_match act8865_matches[] = {
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static int act8865_pdata_from_dt(struct device *dev,
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struct device_node **of_node,
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struct act8865_platform_data *pdata)
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struct act8865_platform_data *pdata,
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struct of_regulator_match *matches,
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int num_matches)
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{
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int matched, i;
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struct device_node *np;
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@ -218,26 +146,25 @@ static int act8865_pdata_from_dt(struct device *dev,
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return -EINVAL;
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}
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matched = of_regulator_match(dev, np,
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act8865_matches, ARRAY_SIZE(act8865_matches));
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matched = of_regulator_match(dev, np, matches, num_matches);
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of_node_put(np);
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if (matched <= 0)
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return matched;
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pdata->regulators = devm_kzalloc(dev,
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sizeof(struct act8865_regulator_data) *
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ARRAY_SIZE(act8865_matches), GFP_KERNEL);
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sizeof(struct act8865_regulator_data) *
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num_matches, GFP_KERNEL);
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if (!pdata->regulators)
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return -ENOMEM;
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pdata->num_regulators = ARRAY_SIZE(act8865_matches);
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pdata->num_regulators = num_matches;
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regulator = pdata->regulators;
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for (i = 0; i < ARRAY_SIZE(act8865_matches); i++) {
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for (i = 0; i < num_matches; i++) {
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regulator->id = i;
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regulator->name = act8865_matches[i].name;
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regulator->platform_data = act8865_matches[i].init_data;
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of_node[i] = act8865_matches[i].of_node;
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regulator->name = matches[i].name;
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regulator->platform_data = matches[i].init_data;
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of_node[i] = matches[i].of_node;
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regulator++;
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}
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@ -269,34 +196,59 @@ static struct regulator_init_data
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}
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static int act8865_pmic_probe(struct i2c_client *client,
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const struct i2c_device_id *i2c_id)
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const struct i2c_device_id *i2c_id)
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{
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struct regulator_dev *rdev;
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static const struct regulator_desc *regulators;
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struct act8865_platform_data pdata_of, *pdata;
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struct of_regulator_match *matches;
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struct device *dev = &client->dev;
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struct act8865_platform_data *pdata = dev_get_platdata(dev);
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struct regulator_config config = { };
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struct device_node **of_node;
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int i, ret, num_regulators;
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struct act8865 *act8865;
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struct device_node *of_node[ACT8865_REG_NUM];
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int i;
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int ret;
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unsigned long type;
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pdata = dev_get_platdata(dev);
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if (dev->of_node && !pdata) {
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const struct of_device_id *id;
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struct act8865_platform_data pdata_of;
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id = of_match_device(of_match_ptr(act8865_dt_ids), dev);
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if (!id)
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return -ENODEV;
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ret = act8865_pdata_from_dt(dev, of_node, &pdata_of);
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type = (unsigned long) id->data;
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} else {
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type = i2c_id->driver_data;
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}
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switch (type) {
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case ACT8865:
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matches = act8865_matches;
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regulators = act8865_regulators;
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num_regulators = ARRAY_SIZE(act8865_regulators);
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break;
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default:
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dev_err(dev, "invalid device id %lu\n", type);
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return -EINVAL;
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}
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of_node = devm_kzalloc(dev, sizeof(struct device_node *) *
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num_regulators, GFP_KERNEL);
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if (!of_node)
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return -ENOMEM;
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if (dev->of_node && !pdata) {
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ret = act8865_pdata_from_dt(dev, of_node, &pdata_of, matches,
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num_regulators);
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if (ret < 0)
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return ret;
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pdata = &pdata_of;
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}
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if (pdata->num_regulators > ACT8865_REG_NUM) {
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dev_err(dev, "Too many regulators found!\n");
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if (pdata->num_regulators > num_regulators) {
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dev_err(dev, "too many regulators: %d\n",
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pdata->num_regulators);
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return -EINVAL;
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}
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@ -313,8 +265,10 @@ static int act8865_pmic_probe(struct i2c_client *client,
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}
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/* Finally register devices */
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for (i = 0; i < ACT8865_REG_NUM; i++) {
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const struct regulator_desc *desc = &act8865_reg[i];
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for (i = 0; i < num_regulators; i++) {
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const struct regulator_desc *desc = ®ulators[i];
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struct regulator_config config = { };
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struct regulator_dev *rdev;
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config.dev = dev;
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config.init_data = act8865_get_init_data(desc->id, pdata);
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@ -330,12 +284,13 @@ static int act8865_pmic_probe(struct i2c_client *client,
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}
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i2c_set_clientdata(client, act8865);
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devm_kfree(dev, of_node);
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return 0;
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}
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static const struct i2c_device_id act8865_ids[] = {
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{ "act8865", 0 },
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{ .name = "act8865", .driver_data = ACT8865 },
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{ },
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};
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MODULE_DEVICE_TABLE(i2c, act8865_ids);
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@ -351,6 +306,6 @@ static struct i2c_driver act8865_pmic_driver = {
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module_i2c_driver(act8865_pmic_driver);
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MODULE_DESCRIPTION("active-semi act8865 voltage regulator driver");
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MODULE_DESCRIPTION("active-semi act88xx voltage regulator driver");
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MODULE_AUTHOR("Wenyou Yang <wenyou.yang@atmel.com>");
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MODULE_LICENSE("GPL v2");
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@ -1,5 +1,5 @@
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/*
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* act8865.h -- Voltage regulation for the active-semi act8865
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* act8865.h -- Voltage regulation for active-semi act88xx PMUs
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*
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* Copyright (C) 2013 Atmel Corporation.
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*
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@ -29,6 +29,10 @@ enum {
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ACT8865_REG_NUM,
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};
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enum {
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ACT8865,
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};
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/**
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* act8865_regulator_data - regulator data
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* @id: regulator id
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