> -----Original Message----- > From: Beniamino Galvani [mailto:b.galvani@xxxxxxxxx] > Sent: Sunday, June 22, 2014 11:32 PM > To: Liam Girdwood; Mark Brown > Cc: Yang, Wenyou; Rob Herring; Pawel Moll; Mark Rutland; Ian Campbell; > Kumar Gala; Heiko Stuebner; devicetree@xxxxxxxxxxxxxxx; linux- > doc@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; linux-arm- > kernel@xxxxxxxxxxxxxxxxxxx; Beniamino Galvani > Subject: [PATCH 3/5] 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@xxxxxxxxx> > --- > drivers/regulator/act8865-regulator.c | 212 +++++++++++++------------ > -------- > include/linux/regulator/act8865.h | 6 +- > 2 files changed, 88 insertions(+), 130 deletions(-) > > diff --git a/drivers/regulator/act8865-regulator.c > b/drivers/regulator/act8865-regulator.c > index b03a0e8..c604b34 100644 > --- a/drivers/regulator/act8865-regulator.c > +++ b/drivers/regulator/act8865-regulator.c > @@ -1,6 +1,7 @@ > /* > - * act8865-regulator.c - Voltage regulation for the active-semi > ACT8865 > - * http://www.active-semi.com/sheets/ACT8865_Datasheet.pdf > + * act8865-regulator.c - Voltage regulation for active-semi ACT88xx > + PMUs > + * > + * http://www.active-semi.com/products/power-management-units/act88xx/ > * > * Copyright (C) 2013 Atmel Corporation > * > @@ -70,7 +71,7 @@ static const struct regmap_config > act8865_regmap_config = { > .val_bits = 8, > }; > > -static const struct regulator_linear_range act8865_volatge_ranges[] = > { > +static const struct regulator_linear_range act8865_voltage_ranges[] = > { > REGULATOR_LINEAR_RANGE(600000, 0, 23, 25000), > REGULATOR_LINEAR_RANGE(1200000, 24, 47, 50000), > REGULATOR_LINEAR_RANGE(2400000, 48, 63, 100000), @@ -86,110 > +87,35 @@ static struct regulator_ops act8865_ops = { > .is_enabled = regulator_is_enabled_regmap, > }; > > -static const struct regulator_desc act8865_reg[] = { > - { > - .name = "DCDC_REG1", > - .id = ACT8865_ID_DCDC1, > - .ops = &act8865_ops, > - .type = REGULATOR_VOLTAGE, > - .n_voltages = ACT8865_VOLTAGE_NUM, > - .linear_ranges = act8865_volatge_ranges, > - .n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges), > - .vsel_reg = ACT8865_DCDC1_VSET1, > - .vsel_mask = ACT8865_VSEL_MASK, > - .enable_reg = ACT8865_DCDC1_CTRL, > - .enable_mask = ACT8865_ENA, > - .owner = THIS_MODULE, > - }, > - { > - .name = "DCDC_REG2", > - .id = ACT8865_ID_DCDC2, > - .ops = &act8865_ops, > - .type = REGULATOR_VOLTAGE, > - .n_voltages = ACT8865_VOLTAGE_NUM, > - .linear_ranges = act8865_volatge_ranges, > - .n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges), > - .vsel_reg = ACT8865_DCDC2_VSET1, > - .vsel_mask = ACT8865_VSEL_MASK, > - .enable_reg = ACT8865_DCDC2_CTRL, > - .enable_mask = ACT8865_ENA, > - .owner = THIS_MODULE, > - }, > - { > - .name = "DCDC_REG3", > - .id = ACT8865_ID_DCDC3, > - .ops = &act8865_ops, > - .type = REGULATOR_VOLTAGE, > - .n_voltages = ACT8865_VOLTAGE_NUM, > - .linear_ranges = act8865_volatge_ranges, > - .n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges), > - .vsel_reg = ACT8865_DCDC3_VSET1, > - .vsel_mask = ACT8865_VSEL_MASK, > - .enable_reg = ACT8865_DCDC3_CTRL, > - .enable_mask = ACT8865_ENA, > - .owner = THIS_MODULE, > - }, > - { > - .name = "LDO_REG1", > - .id = ACT8865_ID_LDO1, > - .ops = &act8865_ops, > - .type = REGULATOR_VOLTAGE, > - .n_voltages = ACT8865_VOLTAGE_NUM, > - .linear_ranges = act8865_volatge_ranges, > - .n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges), > - .vsel_reg = ACT8865_LDO1_VSET, > - .vsel_mask = ACT8865_VSEL_MASK, > - .enable_reg = ACT8865_LDO1_CTRL, > - .enable_mask = ACT8865_ENA, > - .owner = THIS_MODULE, > - }, > - { > - .name = "LDO_REG2", > - .id = ACT8865_ID_LDO2, > - .ops = &act8865_ops, > - .type = REGULATOR_VOLTAGE, > - .n_voltages = ACT8865_VOLTAGE_NUM, > - .linear_ranges = act8865_volatge_ranges, > - .n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges), > - .vsel_reg = ACT8865_LDO2_VSET, > - .vsel_mask = ACT8865_VSEL_MASK, > - .enable_reg = ACT8865_LDO2_CTRL, > - .enable_mask = ACT8865_ENA, > - .owner = THIS_MODULE, > - }, > - { > - .name = "LDO_REG3", > - .id = ACT8865_ID_LDO3, > - .ops = &act8865_ops, > - .type = REGULATOR_VOLTAGE, > - .n_voltages = ACT8865_VOLTAGE_NUM, > - .linear_ranges = act8865_volatge_ranges, > - .n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges), > - .vsel_reg = ACT8865_LDO3_VSET, > - .vsel_mask = ACT8865_VSEL_MASK, > - .enable_reg = ACT8865_LDO3_CTRL, > - .enable_mask = ACT8865_ENA, > - .owner = THIS_MODULE, > - }, > - { > - .name = "LDO_REG4", > - .id = ACT8865_ID_LDO4, > - .ops = &act8865_ops, > - .type = REGULATOR_VOLTAGE, > - .n_voltages = ACT8865_VOLTAGE_NUM, > - .linear_ranges = act8865_volatge_ranges, > - .n_linear_ranges = ARRAY_SIZE(act8865_volatge_ranges), > - .vsel_reg = ACT8865_LDO4_VSET, > - .vsel_mask = ACT8865_VSEL_MASK, > - .enable_reg = ACT8865_LDO4_CTRL, > - .enable_mask = ACT8865_ENA, > - .owner = THIS_MODULE, > - }, > +#define ACT88xx_REG(_name, _family, _id, _vsel_reg) \ > + [_family##_ID_##_id] = { \ > + .name = _name, \ > + .id = _family##_ID_##_id, \ > + .type = REGULATOR_VOLTAGE, \ > + .ops = &act8865_ops, \ > + .n_voltages = ACT8865_VOLTAGE_NUM, \ > + .linear_ranges = act8865_voltage_ranges, \ > + .n_linear_ranges = ARRAY_SIZE(act8865_voltage_ranges), \ > + .vsel_reg = _family##_##_id##_##_vsel_reg, \ > + .vsel_mask = ACT8865_VSEL_MASK, \ > + .enable_reg = _family##_##_id##_CTRL, \ > + .enable_mask = ACT8865_ENA, \ > + .owner = THIS_MODULE, \ > + } > + > +static const struct regulator_desc act8865_regulators[] = { > + ACT88xx_REG("DCDC_REG1", ACT8865, DCDC1, VSET1), > + ACT88xx_REG("DCDC_REG2", ACT8865, DCDC2, VSET1), > + ACT88xx_REG("DCDC_REG3", ACT8865, DCDC3, VSET1), > + ACT88xx_REG("LDO_REG1", ACT8865, LDO1, VSET), > + ACT88xx_REG("LDO_REG2", ACT8865, LDO2, VSET), > + ACT88xx_REG("LDO_REG3", ACT8865, LDO3, VSET), > + ACT88xx_REG("LDO_REG4", ACT8865, LDO4, VSET), > }; > > #ifdef CONFIG_OF > static const struct of_device_id act8865_dt_ids[] = { > - { .compatible = "active-semi,act8865" }, > + { .compatible = "active-semi,act8865", .data = (void *)ACT8865 }, > { } > }; > MODULE_DEVICE_TABLE(of, act8865_dt_ids); @@ -206,7 +132,9 @@ static > struct of_regulator_match act8865_matches[] = { > > static int act8865_pdata_from_dt(struct device *dev, > struct device_node **of_node, > - struct act8865_platform_data *pdata) > + struct act8865_platform_data *pdata, > + struct of_regulator_match *matches, > + int num_matches) > { > int matched, i; > struct device_node *np; > @@ -218,26 +146,25 @@ static int act8865_pdata_from_dt(struct device > *dev, > return -EINVAL; > } > > - matched = of_regulator_match(dev, np, > - act8865_matches, ARRAY_SIZE(act8865_matches)); > + matched = of_regulator_match(dev, np, matches, num_matches); > of_node_put(np); > if (matched <= 0) > return matched; > > pdata->regulators = devm_kzalloc(dev, > - sizeof(struct act8865_regulator_data) * > - ARRAY_SIZE(act8865_matches), GFP_KERNEL); > + sizeof(struct act8865_regulator_data) * > + num_matches, GFP_KERNEL); > if (!pdata->regulators) > return -ENOMEM; > > - pdata->num_regulators = ARRAY_SIZE(act8865_matches); > + pdata->num_regulators = num_matches; > regulator = pdata->regulators; > > - for (i = 0; i < ARRAY_SIZE(act8865_matches); i++) { > + for (i = 0; i < num_matches; i++) { > regulator->id = i; > - regulator->name = act8865_matches[i].name; > - regulator->platform_data = act8865_matches[i].init_data; > - of_node[i] = act8865_matches[i].of_node; > + regulator->name = matches[i].name; > + regulator->platform_data = matches[i].init_data; > + of_node[i] = matches[i].of_node; > regulator++; > } > > @@ -269,35 +196,59 @@ static struct regulator_init_data } > > static int act8865_pmic_probe(struct i2c_client *client, > - const struct i2c_device_id *i2c_id) > + const struct i2c_device_id *i2c_id) > { > - struct regulator_dev *rdev; > + static const struct regulator_desc *regulators; > + struct act8865_platform_data pdata_of, *pdata; > + struct of_regulator_match *matches; > struct device *dev = &client->dev; > - struct act8865_platform_data *pdata = dev_get_platdata(dev); > - struct regulator_config config = { }; > + int i, ret, num_regulators, error; > + struct device_node **of_node; > struct act8865 *act8865; > - struct device_node *of_node[ACT8865_REG_NUM]; > - int i; > - int ret = -EINVAL; > - int error; > + unsigned long type; > + > + pdata = dev_get_platdata(dev); > > if (dev->of_node && !pdata) { > const struct of_device_id *id; > - struct act8865_platform_data pdata_of; > > id = of_match_device(of_match_ptr(act8865_dt_ids), dev); > if (!id) > return -ENODEV; > > - ret = act8865_pdata_from_dt(dev, of_node, &pdata_of); > + type = (unsigned long) id->data; > + } else { > + type = i2c_id->driver_data; > + } > + > + switch (type) { > + case ACT8865: > + matches = act8865_matches; > + regulators = act8865_regulators; > + num_regulators = ARRAY_SIZE(act8865_regulators); > + break; > + default: > + dev_err(dev, "invalid device id %lu\n", type); > + return -EINVAL; > + } > + > + of_node = devm_kzalloc(dev, sizeof(struct device_node *) * > + num_regulators, GFP_KERNEL); > + if (!of_node) > + return -ENOMEM; > + > + if (dev->of_node && !pdata) { > + ret = act8865_pdata_from_dt(dev, of_node, &pdata_of, > matches, > + num_regulators); > if (ret < 0) > return ret; > > pdata = &pdata_of; > } > > - if (pdata->num_regulators > ACT8865_REG_NUM) { > - dev_err(dev, "Too many regulators found!\n"); > + if (pdata->num_regulators > num_regulators) { > + dev_err(dev, "too many regulators: %d\n", > + pdata->num_regulators); > return -EINVAL; > } > > @@ -314,8 +265,10 @@ static int act8865_pmic_probe(struct i2c_client > *client, > } > > /* Finally register devices */ > - for (i = 0; i < ACT8865_REG_NUM; i++) { > - const struct regulator_desc *desc = &act8865_reg[i]; > + for (i = 0; i < num_regulators; i++) { > + const struct regulator_desc *desc = ®ulators[i]; > + struct regulator_config config = { }; > + struct regulator_dev *rdev; > > config.dev = dev; > config.init_data = act8865_get_init_data(desc->id, pdata); > @@ -331,12 +284,13 @@ static int act8865_pmic_probe(struct i2c_client > *client, > } > > i2c_set_clientdata(client, act8865); > + devm_kfree(dev, of_node); > > return 0; > } > > static const struct i2c_device_id act8865_ids[] = { > - { "act8865", 0 }, > + { .name = "act8865", .driver_data = ACT8865 }, > { }, > }; > MODULE_DEVICE_TABLE(i2c, act8865_ids); > @@ -352,6 +306,6 @@ static struct i2c_driver act8865_pmic_driver = { > > module_i2c_driver(act8865_pmic_driver); > > -MODULE_DESCRIPTION("active-semi act8865 voltage regulator driver"); > +MODULE_DESCRIPTION("active-semi act88xx voltage regulator driver"); > MODULE_AUTHOR("Wenyou Yang <wenyou.yang@xxxxxxxxx>"); > MODULE_LICENSE("GPL v2"); diff --git > a/include/linux/regulator/act8865.h b/include/linux/regulator/act8865.h > index 49206c1..b49be81 100644 > --- a/include/linux/regulator/act8865.h > +++ b/include/linux/regulator/act8865.h > @@ -1,5 +1,5 @@ > /* > - * act8865.h -- Voltage regulation for the active-semi act8865 > + * act8865.h -- Voltage regulation for active-semi act88xx PMUs > * > * Copyright (C) 2013 Atmel Corporation. > * > @@ -29,6 +29,10 @@ enum { > ACT8865_REG_NUM, > }; > > +enum { > + ACT8865, > +}; > + > /** > * act8865_regulator_data - regulator data > * @id: regulator id > -- > 1.7.10.4 Tested on at91-sama5d3_xplained with ACT8865 Tested-by Wenyou.Yang <wenyou.yang@xxxxxxxxx> Best Regards, Wenyou Yang -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
