diff options
Diffstat (limited to 'drivers/regulator')
| -rw-r--r-- | drivers/regulator/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/regulator/Makefile | 1 | ||||
| -rw-r--r-- | drivers/regulator/core.c | 39 | ||||
| -rw-r--r-- | drivers/regulator/da9055-regulator.c | 644 | ||||
| -rw-r--r-- | drivers/regulator/palmas-regulator.c | 37 | ||||
| -rw-r--r-- | drivers/regulator/pcf50633-regulator.c | 176 | ||||
| -rw-r--r-- | drivers/regulator/tps51632-regulator.c | 15 |
7 files changed, 719 insertions, 203 deletions
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 2fd5808bf668..10b1edc89621 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -109,6 +109,16 @@ config REGULATOR_DA9052 This driver supports the voltage regulators of DA9052-BC and DA9053-AA/Bx PMIC. +config REGULATOR_DA9055 + tristate "Dialog Semiconductor DA9055 regulators" + depends on MFD_DA9055 + help + Say y here to support the BUCKs and LDOs regulators found on + Dialog Semiconductor DA9055 PMIC. + + This driver can also be built as a module. If so, the module + will be called da9055-regulator. + config REGULATOR_FAN53555 tristate "Fairchild FAN53555 Regulator" depends on I2C diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index ec1aec460bf6..bdaca617e2f2 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -18,6 +18,7 @@ obj-$(CONFIG_REGULATOR_ANATOP) += anatop-regulator.o obj-$(CONFIG_REGULATOR_ARIZONA) += arizona-micsupp.o arizona-ldo1.o obj-$(CONFIG_REGULATOR_DA903X) += da903x.o obj-$(CONFIG_REGULATOR_DA9052) += da9052-regulator.o +obj-$(CONFIG_REGULATOR_DA9055) += da9055-regulator.o obj-$(CONFIG_REGULATOR_DBX500_PRCMU) += dbx500-prcmu.o obj-$(CONFIG_REGULATOR_DB8500_PRCMU) += db8500-prcmu.o obj-$(CONFIG_REGULATOR_FAN53555) += fan53555.o diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 5c4829cba6a6..02a249b024b3 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1381,22 +1381,14 @@ struct regulator *regulator_get_exclusive(struct device *dev, const char *id) } EXPORT_SYMBOL_GPL(regulator_get_exclusive); -/** - * regulator_put - "free" the regulator source - * @regulator: regulator source - * - * Note: drivers must ensure that all regulator_enable calls made on this - * regulator source are balanced by regulator_disable calls prior to calling - * this function. - */ -void regulator_put(struct regulator *regulator) +/* Locks held by regulator_put() */ +static void _regulator_put(struct regulator *regulator) { struct regulator_dev *rdev; if (regulator == NULL || IS_ERR(regulator)) return; - mutex_lock(®ulator_list_mutex); rdev = regulator->rdev; debugfs_remove_recursive(regulator->debugfs); @@ -1412,6 +1404,20 @@ void regulator_put(struct regulator *regulator) rdev->exclusive = 0; module_put(rdev->owner); +} + +/** + * regulator_put - "free" the regulator source + * @regulator: regulator source + * + * Note: drivers must ensure that all regulator_enable calls made on this + * regulator source are balanced by regulator_disable calls prior to calling + * this function. + */ +void regulator_put(struct regulator *regulator) +{ + mutex_lock(®ulator_list_mutex); + _regulator_put(regulator); mutex_unlock(®ulator_list_mutex); } EXPORT_SYMBOL_GPL(regulator_put); @@ -1891,6 +1897,10 @@ int regulator_list_voltage_linear(struct regulator_dev *rdev, { if (selector >= rdev->desc->n_voltages) return -EINVAL; + if (selector < rdev->desc->linear_min_sel) + return 0; + + selector -= rdev->desc->linear_min_sel; return rdev->desc->min_uV + (rdev->desc->uV_step * selector); } @@ -1974,7 +1984,7 @@ int regulator_is_supported_voltage(struct regulator *regulator, if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE)) { ret = regulator_get_voltage(regulator); if (ret >= 0) - return (min_uV >= ret && ret <= max_uV); + return (min_uV <= ret && ret <= max_uV); else return ret; } @@ -2114,6 +2124,8 @@ int regulator_map_voltage_linear(struct regulator_dev *rdev, if (ret < 0) return ret; + ret += rdev->desc->linear_min_sel; + /* Map back into a voltage to verify we're still in bounds */ voltage = rdev->desc->ops->list_voltage(rdev, ret); if (voltage < min_uV || voltage > max_uV) @@ -3365,7 +3377,7 @@ regulator_register(const struct regulator_desc *regulator_desc, if (ret != 0) { rdev_err(rdev, "Failed to request enable GPIO%d: %d\n", config->ena_gpio, ret); - goto clean; + goto wash; } rdev->ena_gpio = config->ena_gpio; @@ -3445,10 +3457,11 @@ unset_supplies: scrub: if (rdev->supply) - regulator_put(rdev->supply); + _regulator_put(rdev->supply); if (rdev->ena_gpio) gpio_free(rdev->ena_gpio); kfree(rdev->constraints); +wash: device_unregister(&rdev->dev); /* device core frees rdev */ rdev = ERR_PTR(ret); diff --git a/drivers/regulator/da9055-regulator.c b/drivers/regulator/da9055-regulator.c new file mode 100644 index 000000000000..2253559703ce --- /dev/null +++ b/drivers/regulator/da9055-regulator.c @@ -0,0 +1,644 @@ +/* +* Regulator driver for DA9055 PMIC +* +* Copyright(c) 2012 Dialog Semiconductor Ltd. +* +* Author: David Dajun Chen <dchen@diasemi.com> +* +* This program is free software; you can redistribute it and/or modify +* it under the terms of the GNU General Public License as published by +* the Free Software Foundation; either version 2 of the License, or +* (at your option) any later version. +* +*/ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/gpio.h> +#include <linux/platform_device.h> +#include <linux/regulator/driver.h> +#include <linux/regulator/machine.h> + +#include <linux/mfd/da9055/core.h> +#include <linux/mfd/da9055/reg.h> +#include <linux/mfd/da9055/pdata.h> + +#define DA9055_MIN_UA 0 +#define DA9055_MAX_UA 3 + +#define DA9055_LDO_MODE_SYNC 0 +#define DA9055_LDO_MODE_SLEEP 1 + +#define DA9055_BUCK_MODE_SLEEP 1 +#define DA9055_BUCK_MODE_SYNC 2 +#define DA9055_BUCK_MODE_AUTO 3 + +/* DA9055 REGULATOR IDs */ +#define DA9055_ID_BUCK1 0 +#define DA9055_ID_BUCK2 1 +#define DA9055_ID_LDO1 2 +#define DA9055_ID_LDO2 3 +#define DA9055_ID_LDO3 4 +#define DA9055_ID_LDO4 5 +#define DA9055_ID_LDO5 6 +#define DA9055_ID_LDO6 7 + +/* DA9055 BUCK current limit */ +static const int da9055_current_limits[] = { 500000, 600000, 700000, 800000 }; + +struct da9055_conf_reg { + int reg; + int sel_mask; + int en_mask; +}; + +struct da9055_volt_reg { + int reg_a; + int reg_b; + int sl_shift; + int v_mask; + int v_shift; +}; + +struct da9055_mode_reg { + int reg; + int mask; + int shift; +}; + +struct da9055_regulator_info { + struct regulator_desc reg_desc; + struct da9055_conf_reg conf; + struct da9055_volt_reg volt; + struct da9055_mode_reg mode; +}; + +struct da9055_regulator { + struct da9055 *da9055; + struct da9055_regulator_info *info; + struct regulator_dev *rdev; + enum gpio_select reg_rselect; +}; + +static unsigned int da9055_buck_get_mode(struct regulator_dev *rdev) +{ + struct da9055_regulator *regulator = rdev_get_drvdata(rdev); + struct da9055_regulator_info *info = regulator->info; + int ret, mode = 0; + + ret = da9055_reg_read(regulator->da9055, info->mode.reg); + if (ret < 0) + return ret; + + switch ((ret & info->mode.mask) >> info->mode.shift) { + case DA9055_BUCK_MODE_SYNC: + mode = REGULATOR_MODE_FAST; + break; + case DA9055_BUCK_MODE_AUTO: + mode = REGULATOR_MODE_NORMAL; + break; + case DA9055_BUCK_MODE_SLEEP: + mode = REGULATOR_MODE_STANDBY; + break; + } + + return mode; +} + +static int da9055_buck_set_mode(struct regulator_dev *rdev, + unsigned int mode) +{ + struct da9055_regulator *regulator = rdev_get_drvdata(rdev); + struct da9055_regulator_info *info = regulator->info; + int val = 0; + + switch (mode) { + case REGULATOR_MODE_FAST: + val = DA9055_BUCK_MODE_SYNC << info->mode.shift; + break; + case REGULATOR_MODE_NORMAL: + val = DA9055_BUCK_MODE_AUTO << info->mode.shift; + break; + case REGULATOR_MODE_STANDBY: + val = DA9055_BUCK_MODE_SLEEP << info->mode.shift; + break; + } + + return da9055_reg_update(regulator->da9055, info->mode.reg, + info->mode.mask, val); +} + +static unsigned int da9055_ldo_get_mode(struct regulator_dev *rdev) +{ + struct da9055_regulator *regulator = rdev_get_drvdata(rdev); + struct da9055_regulator_info *info = regulator->info; + int ret; + + ret = da9055_reg_read(regulator->da9055, info->volt.reg_b); + if (ret < 0) + return ret; + + if (ret >> info->volt.sl_shift) + return REGULATOR_MODE_STANDBY; + else + return REGULATOR_MODE_NORMAL; +} + +static int da9055_ldo_set_mode(struct regulator_dev *rdev, unsigned int mode) +{ + struct da9055_regulator *regulator = rdev_get_drvdata(rdev); + struct da9055_regulator_info *info = regulator->info; + struct da9055_volt_reg volt = info->volt; + int val = 0; + + switch (mode) { + case REGULATOR_MODE_NORMAL: + case REGULATOR_MODE_FAST: + val = DA9055_LDO_MODE_SYNC; + break; + case REGULATOR_MODE_STANDBY: + val = DA9055_LDO_MODE_SLEEP; + break; + } + + return da9055_reg_update(regulator->da9055, volt.reg_b, + 1 << volt.sl_shift, + val << volt.sl_shift); +} + +static int da9055_buck_get_current_limit(struct regulator_dev *rdev) +{ + struct da9055_regulator *regulator = rdev_get_drvdata(rdev); + struct da9055_regulator_info *info = regulator->info; + int ret; + + ret = da9055_reg_read(regulator->da9055, DA9055_REG_BUCK_LIM); + if (ret < 0) + return ret; + + ret &= info->mode.mask; + return da9055_current_limits[ret >> info->mode.shift]; +} + +static int da9055_buck_set_current_limit(struct regulator_dev *rdev, int min_uA, + int max_uA) +{ + struct da9055_regulator *regulator = rdev_get_drvdata(rdev); + struct da9055_regulator_info *info = regulator->info; + int i, val = 0; + + if (min_uA > da9055_current_limits[DA9055_MAX_UA] || + max_uA < da9055_current_limits[DA9055_MIN_UA]) + return -EINVAL; + + for (i = 0; i < ARRAY_SIZE(da9055_current_limits); i++) { + if (min_uA <= da9055_current_limits[i]) { + val = i; + break; + } + } + + return da9055_reg_update(regulator->da9055, DA9055_REG_BUCK_LIM, + info->mode.mask, val << info->mode.shift); +} + +static int da9055_regulator_get_voltage_sel(struct regulator_dev *rdev) +{ + struct da9055_regulator *regulator = rdev_get_drvdata(rdev); + struct da9055_regulator_info *info = regulator->info; + struct da9055_volt_reg volt = info->volt; + int ret, sel; + + /* + * There are two voltage register set A & B for voltage ramping but + * either one of then can be active therefore we first determine + * the active register set. + */ + ret = da9055_reg_read(regulator->da9055, info->conf.reg); + if (ret < 0) + return ret; + + ret &= info->conf.sel_mask; + + /* Get the voltage for the active register set A/B */ + if (ret == DA9055_REGUALTOR_SET_A) + ret = da9055_reg_read(regulator->da9055, volt.reg_a); + else + ret = da9055_reg_read(regulator->da9055, volt.reg_b); + + if (ret < 0) + return ret; + + sel = (ret & volt.v_mask); + return sel; +} + +static int da9055_regulator_set_voltage_sel(struct regulator_dev *rdev, + unsigned int selector) +{ + struct da9055_regulator *regulator = rdev_get_drvdata(rdev); + struct da9055_regulator_info *info = regulator->info; + int ret; + + /* + * Regulator register set A/B is not selected through GPIO therefore + * we use default register set A for voltage ramping. + */ + if (regulator->reg_rselect == NO_GPIO) { + /* Select register set A */ + ret = da9055_reg_update(regulator->da9055, info->conf.reg, + info->conf.sel_mask, DA9055_SEL_REG_A); + if (ret < 0) + return ret; + + /* Set the voltage */ + return da9055_reg_update(regulator->da9055, info->volt.reg_a, + info->volt.v_mask, selector); + } + + /* + * Here regulator register set A/B is selected through GPIO. + * Therefore we first determine the selected register set A/B and + * then set the desired voltage for that register set A/B. + */ + ret = da9055_reg_read(regulator->da9055, info->conf.reg); + if (ret < 0) + return ret; + + ret &= info->conf.sel_mask; + + /* Set the voltage */ + if (ret == DA9055_REGUALTOR_SET_A) + return da9055_reg_update(regulator->da9055, info->volt.reg_a, + info->volt.v_mask, selector); + else + return da9055_reg_update(regulator->da9055, info->volt.reg_b, + info->volt.v_mask, selector); +} + +static int da9055_regulator_set_suspend_voltage(struct regulator_dev *rdev, + int uV) +{ + struct da9055_regulator *regulator = rdev_get_drvdata(rdev); + struct da9055_regulator_info *info = regulator->info; + int ret; + + /* Select register set B for suspend voltage ramping. */ + if (regulator->reg_rselect == NO_GPIO) { + ret = da9055_reg_update(regulator->da9055, info->conf.reg, + info->conf.sel_mask, DA9055_SEL_REG_B); + if (ret < 0) + return ret; + } + + ret = regulator_map_voltage_linear(rdev, uV, uV); + if (ret < 0) + return ret; + + return da9055_reg_update(regulator->da9055, info->volt.reg_b, + info->volt.v_mask, ret); +} + +static int da9055_suspend_enable(struct regulator_dev *rdev) +{ + struct da9055_regulator *regulator = rdev_get_drvdata(rdev); + struct da9055_regulator_info *info = regulator->info; + + /* Select register set B for voltage ramping. */ + if (regulator->reg_rselect == NO_GPIO) + return da9055_reg_update(regulator->da9055, info->conf.reg, + info->conf.sel_mask, DA9055_SEL_REG_B); + else + return 0; +} + +static int da9055_suspend_disable(struct regulator_dev *rdev) +{ + struct da9055_regulator *regulator = rdev_get_drvdata(rdev); + struct da9055_regulator_info *info = regulator->info; + + /* Diselect register set B. */ + if (regulator->reg_rselect == NO_GPIO) + return da9055_reg_update(regulator->da9055, info->conf.reg, + info->conf.sel_mask, DA9055_SEL_REG_A); + else + return 0; +} + +static struct regulator_ops da9055_buck_ops = { + .get_mode = da9055_buck_get_mode, + .set_mode = da9055_buck_set_mode, + + .get_current_limit = da9055_buck_get_current_limit, + .set_current_limit = da9055_buck_set_current_limit, + + .get_voltage_sel = da9055_regulator_get_voltage_sel, + .set_voltage_sel = da9055_regulator_set_voltage_sel, + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .is_enabled = regulator_is_enabled_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + + .set_suspend_voltage = da9055_regulator_set_suspend_voltage, + .set_suspend_enable = da9055_suspend_enable, + .set_suspend_disable = da9055_suspend_disable, + .set_suspend_mode = da9055_buck_set_mode, +}; + +static struct regulator_ops da9055_ldo_ops = { + .get_mode = da9055_ldo_get_mode, + .set_mode = da9055_ldo_set_mode, + + .get_voltage_sel = da9055_regulator_get_voltage_sel, + .set_voltage_sel = da9055_regulator_set_voltage_sel, + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .is_enabled = regulator_is_enabled_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + + .set_suspend_voltage = da9055_regulator_set_suspend_voltage, + .set_suspend_enable = da9055_suspend_enable, + .set_suspend_disable = da9055_suspend_disable, + .set_suspend_mode = da9055_ldo_set_mode, + +}; + +#define DA9055_LDO(_id, step, min, max, vbits, voffset) \ +{\ + .reg_desc = {\ + .name = #_id,\ + .ops = &da9055_ldo_ops,\ + .type = REGULATOR_VOLTAGE,\ + .id = DA9055_ID_##_id,\ + .n_voltages = (max - min) / step + 1 + (voffset), \ + .enable_reg = DA9055_REG_BCORE_CONT + DA9055_ID_##_id, \ + .enable_mask = 1, \ + .min_uV = (min) * 1000,\ + .uV_step = (step) * 1000,\ + .linear_min_sel = (voffset),\ + .owner = THIS_MODULE,\ + },\ + .conf = {\ + .reg = DA9055_REG_BCORE_CONT + DA9055_ID_##_id, \ + .sel_mask = (1 << 4),\ + .en_mask = 1,\ + },\ + .volt = {\ + .reg_a = DA9055_REG_VBCORE_A + DA9055_ID_##_id, \ + .reg_b = DA9055_REG_VBCORE_B + DA9055_ID_##_id, \ + .sl_shift = 7,\ + .v_mask = (1 << (vbits)) - 1,\ + .v_shift = (vbits),\ + },\ +} + +#define DA9055_BUCK(_id, step, min, max, vbits, voffset, mbits, sbits) \ +{\ + .reg_desc = {\ + .name = #_id,\ + .ops = &da9055_buck_ops,\ + .type = REGULATOR_VOLTAGE,\ + .id = DA9055_ID_##_id,\ + .n_voltages = (max - min) / step + 1 + (voffset), \ + .enable_reg = DA9055_REG_BCORE_CONT + DA9055_ID_##_id, \ + .enable_mask = 1,\ + .min_uV = (min) * 1000,\ + .uV_step = (step) * 1000,\ + .linear_min_sel = (voffset),\ + .owner = THIS_MODULE,\ + },\ + .conf = {\ + .reg = DA9055_REG_BCORE_CONT + DA9055_ID_##_id, \ + .sel_mask = (1 << 4),\ + .en_mask = 1,\ + },\ + .volt = {\ + .reg_a = DA9055_REG_VBCORE_A + DA9055_ID_##_id, \ + .reg_b = DA9055_REG_VBCORE_B + DA9055_ID_##_id, \ + .sl_shift = 7,\ + .v_mask = (1 << (vbits)) - 1,\ + .v_shift = (vbits),\ + },\ + .mode = {\ + .reg = DA9055_REG_BCORE_MODE,\ + .mask = (mbits),\ + .shift = (sbits),\ + },\ +} + +static struct da9055_regulator_info da9055_regulator_info[] = { + DA9055_BUCK(BUCK1, 25, 725, 2075, 6, 9, 0xc, 2), + DA9055_BUCK(BUCK2, 25, 925, 2500, 6, 0, 3, 0), + DA9055_LDO(LDO1, 50, 900, 3300, 6, 2), + DA9055_LDO(LDO2, 50, 900, 3300, 6, 3), + DA9055_LDO(LDO3, 50, 900, 3300, 6, 2), + DA9055_LDO(LDO4, 50, 900, 3300, 6, 2), + DA9055_LDO(LDO5, 50, 900, 2750, 6, 2), + DA9055_LDO(LDO6, 20, 900, 3300, 7, 0), +}; + +/* + * Configures regulator to be controlled either through GPIO 1 or 2. + * GPIO can control regulator state and/or select the regulator register + * set A/B for voltage ramping. + */ +static __devinit int da9055_gpio_init(struct da9055_regulator *regulator, + struct regulator_config *config, + struct da9055_pdata *pdata, int id) +{ + struct da9055_regulator_info *info = regulator->info; + int ret = 0; + + if (pdata->gpio_ren && pdata->gpio_ren[id]) { + char name[18]; + int gpio_mux = pdata->gpio_ren[id]; + + config->ena_gpio = pdata->ena_gpio[id]; + config->ena_gpio_flags = GPIOF_OUT_INIT_HIGH; + config->ena_gpio_invert = 1; + + /* + * GPI pin is muxed with regulator to control the + * regulator state. + */ + sprintf(name, "DA9055 GPI %d", gpio_mux); + ret = devm_gpio_request_one(config->dev, gpio_mux, GPIOF_DIR_IN, + name); + if (ret < 0) + goto err; + + /* + * Let the regulator know that its state is controlled + * through GPI. + */ + ret = da9055_reg_update(regulator->da9055, info->conf.reg, + DA9055_E_GPI_MASK, + pdata->reg_ren[id] + << DA9055_E_GPI_SHIFT); + if (ret < 0) + goto err; + } + + if (pdata->gpio_rsel && pdata->gpio_rsel[id]) { + char name[18]; + int gpio_mux = pdata->gpio_rsel[id]; + + regulator->reg_rselect = pdata->reg_rsel[id]; + + /* + * GPI pin is muxed with regulator to select the + * regulator register set A/B for voltage ramping. + */ + sprintf(name, "DA9055 GPI %d", gpio_mux); + ret = devm_gpio_request_one(config->dev, gpio_mux, GPIOF_DIR_IN, + name); + if (ret < 0) + goto err; + + /* + * Let the regulator know that its register set A/B + * will be selected through GPI for voltage ramping. + */ + ret = da9055_reg_update(regulator->da9055, info->conf.reg, + DA9055_V_GPI_MASK, + pdata->reg_rsel[id] + << DA9055_V_GPI_SHIFT); + } + +err: + return ret; +} + +static irqreturn_t da9055_ldo5_6_oc_irq(int irq, void *data) +{ + struct da9055_regulator *regulator = data; + + regulator_notifier_call_chain(regulator->rdev, + REGULATOR_EVENT_OVER_CURRENT, NULL); + + return IRQ_HANDLED; +} + +static inline struct da9055_regulator_info *find_regulator_info(int id) +{ + struct da9055_regulator_info *info; + int i; + + for (i = 0; i < ARRAY_SIZE(da9055_regulator_info); i++) { + info = &da9055_regulator_info[i]; + if (info->reg_desc.id == id) + return info; + } + + return NULL; +} + +static int __devinit da9055_regulator_probe(struct platform_device *pdev) +{ + struct regulator_config config = { }; + struct da9055_regulator *regulator; + struct da9055 *da9055 = dev_get_drvdata(pdev->dev.parent); + struct da9055_pdata *pdata = da9055->dev->platform_data; + int ret, irq; + + if (pdata == NULL || pdata->regulators[pdev->id] == NULL) + return -ENODEV; + + regulator = devm_kzalloc(&pdev->dev, sizeof(struct da9055_regulator), + GFP_KERNEL); + if (!regulator) + return -ENOMEM; + + regulator->info = find_regulator_info(pdev->id); + if (regulator->info == NULL) { + dev_err(&pdev->dev, "invalid regulator ID specified\n"); + return -EINVAL; + } + + regulator->da9055 = da9055; + config.dev = &pdev->dev; + config.driver_data = regulator; + config.regmap = da9055->regmap; + + if (pdata && pdata->regulators) + config.init_data = pdata->regulators[pdev->id]; + + ret = da9055_gpio_init(regulator, &config, pdata, pdev->id); + if (ret < 0) + return ret; + + regulator->rdev = regulator_register(®ulator->info->reg_desc, + &config); + if (IS_ERR(regulator->rdev)) { + dev_err(&pdev->dev, "Failed to register regulator %s\n", + regulator->info->reg_desc.name); + ret = PTR_ERR(regulator->rdev); + return ret; + } + + /* Only LDO 5 and 6 has got the over current interrupt */ + if (pdev->id == DA9055_ID_LDO5 || pdev->id == DA9055_ID_LDO6) { + irq = platform_get_irq_byname(pdev, "REGULATOR"); + irq = regmap_irq_get_virq(da9055->irq_data, irq); + ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, + da9055_ldo5_6_oc_irq, + IRQF_TRIGGER_HIGH | + IRQF_ONESHOT | + IRQF_PROBE_SHARED, + pdev->name, regulator); + if (ret != 0) { + if (ret != -EBUSY) { + dev_err(&pdev->dev, + "Failed to request Regulator IRQ %d: %d\n", + irq, ret); + goto err_regulator; + } + } + } + + platform_set_drvdata(pdev, regulator); + + return 0; + +err_regulator: + regulator_unregister(regulator->rdev); + return ret; +} + +static int __devexit da9055_regulator_remove(struct platform_device *pdev) +{ + struct da9055_regulator *regulator = platform_get_drvdata(pdev); + + regulator_unregister(regulator->rdev); + + return 0; +} + +static struct platform_driver da9055_regulator_driver = { + .probe = da9055_regulator_probe, + .remove = __devexit_p(da9055_regulator_remove), + .driver = { + .name = "da9055-regulator", + .owner = THIS_MODULE, + }, +}; + +static int __init da9055_regulator_init(void) +{ + return platform_driver_register(&da9055_regulator_driver); +} +subsys_initcall(da9055_regulator_init); + +static void __exit da9055_regulator_exit(void) +{ + platform_driver_unregister(&da9055_regulator_driver); +} +module_exit(da9055_regulator_exit); + +MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>"); +MODULE_DESCRIPTION("Power Regulator driver for Dialog DA9055 PMIC"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:da9055-regulator"); diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c index 07aee694ba92..111d76b04bb5 100644 --- a/drivers/regulator/palmas-regulator.c +++ b/drivers/regulator/palmas-regulator.c @@ -436,44 +436,14 @@ static int palmas_is_enabled_ldo(struct regulator_dev *dev) return !!(reg); } -static int palmas_list_voltage_ldo(struct regulator_dev *dev, - unsigned selector) -{ - if (!selector) - return 0; - - /* voltage is 0.85V + (selector * 0.05v) */ - return 850000 + (selector * 50000); -} - -static int palmas_map_voltage_ldo(struct regulator_dev *rdev, - int min_uV, int max_uV) -{ - int ret, voltage; - - if (min_uV == 0) - return 0; - - if (min_uV < 900000) - min_uV = 900000; - ret = DIV_ROUND_UP(min_uV - 900000, 50000) + 1; - - /* Map back into a voltage to verify we're still in bounds */ - voltage = palmas_list_voltage_ldo(rdev, ret); - if (voltage < min_uV || voltage > max_uV) - return -EINVAL; - - return ret; -} - static struct regulator_ops palmas_ops_ldo = { .is_enabled = palmas_is_enabled_ldo, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, - .list_voltage = palmas_list_voltage_ldo, - .map_voltage = palmas_map_voltage_ldo, + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, }; /* @@ -821,6 +791,9 @@ static __devinit int palmas_probe(struct platform_device *pdev) pmic->desc[id].type = REGULATOR_VOLTAGE; pmic->desc[id].owner = THIS_MODULE; + pmic->desc[id].min_uV = 900000; + pmic->desc[id].uV_step = 50000; + pmic->desc[id].linear_min_sel = 1; pmic->desc[id].vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, palmas_regs_info[id].vsel_addr); pmic->desc[id].vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK; diff --git a/drivers/regulator/pcf50633-regulator.c b/drivers/regulator/pcf50633-regulator.c index 092e5cb848a1..769272afff2a 100644 --- a/drivers/regulator/pcf50633-regulator.c +++ b/drivers/regulator/pcf50633-regulator.c @@ -24,12 +24,15 @@ #include <linux/mfd/pcf50633/core.h> #include <linux/mfd/pcf50633/pmic.h> -#define PCF50633_REGULATOR(_name, _id, _n) \ +#define PCF50633_REGULATOR(_name, _id, _min_uV, _uV_step, _min_sel, _n) \ { \ .name = _name, \ .id = PCF50633_REGULATOR_##_id, \ .ops = &pcf50633_regulator_ops, \ .n_voltages = _n, \ + .min_uV = _min_uV, \ + .uV_step = _uV_step, \ + .linear_min_sel = _min_sel, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ .vsel_reg = PCF50633_REG_##_id##OUT, \ @@ -38,162 +41,39 @@ .enable_mask = PCF50633_REGULATOR_ON, \ } -/* Bits from voltage value */ -static u8 auto_voltage_bits(unsigned int millivolts) -{ - if (millivolts < 1800) - return 0x2f; - if (millivolts > 3800) - return 0xff; - - millivolts -= 625; - - return millivolts / 25; -} - -static u8 down_voltage_bits(unsigned int millivolts) -{ - if (millivolts < 625) - return 0; - else if (millivolts > 3000) - return 0xff; - - millivolts -= 625; - - return millivolts / 25; -} - -static u8 ldo_voltage_bits(unsigned int millivolts) -{ - if (millivolts < 900) - return 0; - else if (millivolts > 3600) - return 0x1f; - - millivolts -= 900; - return millivolts / 100; -} - -/* Obtain voltage value from bits */ -static unsigned int auto_voltage_value(u8 bits) -{ - /* AUTOOUT: 00000000 to 00101110 are reserved. - * Return 0 for bits in reserved range, which means this selector code - * can't be used on this system */ - if (bits < 0x2f) - return 0; - - return 625 + (bits * 25); -} - - -static unsigned int down_voltage_value(u8 bits) -{ - return 625 + (bits * 25); -} - - -static unsigned int ldo_voltage_value(u8 bits) -{ - bits &= 0x1f; - - return 900 + (bits * 100); -} - -static int pcf50633_regulator_map_voltage(struct regulator_dev *rdev, - int min_uV, int max_uV) -{ - struct pcf50633 *pcf; - int regulator_id, millivolts; - u8 volt_bits; - - pcf = rdev_get_drvdata(rdev); - - regulator_id = rdev_get_id(rdev); - if (regulator_id >= PCF50633_NUM_REGULATORS) - return -EINVAL; - - millivolts = min_uV / 1000; - - switch (regulator_id) { - case PCF50633_REGULATOR_AUTO: - volt_bits = auto_voltage_bits(millivolts); - break; - case PCF50633_REGULATOR_DOWN1: - case PCF50633_REGULATOR_DOWN2: - volt_bits = down_voltage_bits(millivolts); - break; - case PCF50633_REGULATOR_LDO1: - case PCF50633_REGULATOR_LDO2: - case PCF50633_REGULATOR_LDO3: - case PCF50633_REGULATOR_LDO4: - case PCF50633_REGULATOR_LDO5: - case PCF50633_REGULATOR_LDO6: - case PCF50633_REGULATOR_HCLDO: - case PCF50633_REGULATOR_MEMLDO: - volt_bits = ldo_voltage_bits(millivolts); - break; - default: - return -EINVAL; - } - - return volt_bits; -} - -static int pcf50633_regulator_list_voltage(struct regulator_dev *rdev, - unsigned int index) -{ - int regulator_id = rdev_get_id(rdev); - - int millivolts; - - switch (regulator_id) { - case PCF50633_REGULATOR_AUTO: - millivolts = auto_voltage_value(index); - break; - case PCF50633_REGULATOR_DOWN1: - case PCF50633_REGULATOR_DOWN2: - millivolts = down_voltage_value(index); - break; - case PCF50633_REGULATOR_LDO1: - case PCF50633_REGULATOR_LDO2: - case PCF50633_REGULATOR_LDO3: - case PCF50633_REGULATOR_LDO4: - case PCF50633_REGULATOR_LDO5: - case PCF50633_REGULATOR_LDO6: - case PCF50633_REGULATOR_HCLDO: - case PCF50633_REGULATOR_MEMLDO: - millivolts = ldo_voltage_value(index); - break; - default: - return -EINVAL; - } - - return millivolts * 1000; -} - static struct regulator_ops pcf50633_regulator_ops = { .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, - .list_voltage = pcf50633_regulator_list_voltage, - .map_voltage = pcf50633_regulator_map_voltage, + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, }; static const struct regulator_desc regulators[] = { - [PCF50633_REGULATOR_AUTO] = PCF50633_REGULATOR("auto", AUTO, 128), - [PCF50633_REGULATOR_DOWN1] = PCF50633_REGULATOR("down1", DOWN1, 96), - [PCF50633_REGULATOR_DOWN2] = PCF50633_REGULATOR("down2", DOWN2, 96), - [PCF50633_REGULATOR_LDO1] = PCF50633_REGULATOR("ldo1", LDO1, 28), - [PCF50633_REGULATOR_LDO2] = PCF50633_REGULATOR("ldo2", LDO2, 28), - [PCF50633_REGULATOR_LDO3] = PCF50633_REGULATOR("ldo3", LDO3, 28), - [PCF50633_REGULATOR_LDO4] = PCF50633_REGULATOR("ldo4", LDO4, 28), - [PCF50633_REGULATOR_LDO5] = PCF50633_REGULATOR("ldo5", LDO5, 28), - [PCF50633_REGULATOR_LDO6] = PCF50633_REGULATOR("ldo6", LDO6, 28), - [PCF50633_REGULATOR_HCLDO] = PCF50633_REGULATOR("hcldo", HCLDO, 28), - [PCF50633_REGULATOR_MEMLDO] = PCF50633_REGULATOR("memldo", MEMLDO, 28), + [PCF50633_REGULATOR_AUTO] = + PCF50633_REGULATOR("auto", AUTO, 1800000, 25000, 0x2f, 128), + [PCF50633_REGULATOR_DOWN1] = + PCF50633_REGULATOR("down1", DOWN1, 625000, 25000, 0, 96), + [PCF50633_REGULATOR_DOWN2] = + PCF50633_REGULATOR("down2", DOWN2, 625000, 25000, 0, 96), + [PCF50633_REGULATOR_LDO1] = + PCF50633_REGULATOR("ldo1", LDO1, 900000, 100000, 0, 28), + [PCF50633_REGULATOR_LDO2] = + PCF50633_REGULATOR("ldo2", LDO2, 900000, 100000, 0, 28), + [PCF50633_REGULATOR_LDO3] = + PCF50633_REGULATOR("ldo3", LDO3, 900000, 100000, 0, 28), + [PCF50633_REGULATOR_LDO4] = + PCF50633_REGULATOR("ldo4", LDO4, 900000, 100000, 0, 28), + [PCF50633_REGULATOR_LDO5] = + PCF50633_REGULATOR("ldo5", LDO5, 900000, 100000, 0, 28), + [PCF50633_REGULATOR_LDO6] = + PCF50633_REGULATOR("ldo6", LDO6, 900000, 100000, 0, 28), + [PCF50633_REGULATOR_HCLDO] = + PCF50633_REGULATOR("hcldo", HCLDO, 900000, 100000, 0, 28), + [PCF50633_REGULATOR_MEMLDO] = + PCF50633_REGULATOR("memldo", MEMLDO, 900000, 100000, 0, 28), }; static int __devinit pcf50633_regulator_probe(struct platform_device *pdev) diff --git a/drivers/regulator/tps51632-regulator.c b/drivers/regulator/tps51632-regulator.c index e88bfe48303a..7c4e8a6e1d5d 100644 --- a/drivers/regulator/tps51632-regulator.c +++ b/drivers/regulator/tps51632-regulator.c @@ -106,29 +106,23 @@ static int tps51632_dcdc_get_voltage_sel(struct regulator_dev *rdev) } vsel = data & TPS51632_VOUT_MASK; - - if (vsel < TPS51632_MIN_VSEL) - return 0; - else - return vsel - TPS51632_MIN_VSEL; + return vsel; } static int tps51632_dcdc_set_voltage_sel(struct regulator_dev *rdev, unsigned selector) { struct tps51632_chip *tps = rdev_get_drvdata(rdev); - int vsel; int ret; unsigned int reg = TPS51632_VOLTAGE_SELECT_REG; if (tps->enable_pwm_dvfs) reg = TPS51632_VOLTAGE_BASE_REG; - vsel = selector + TPS51632_MIN_VSEL; - if (vsel > TPS51632_MAX_VSEL) + if (selector > TPS51632_MAX_VSEL) return -EINVAL; - ret = regmap_write(tps->regmap, reg, vsel); + ret = regmap_write(tps->regmap, reg, selector); if (ret < 0) dev_err(tps->dev, "reg write failed, err %d\n", ret); return ret; @@ -254,7 +248,8 @@ static int __devinit tps51632_probe(struct i2c_client *client, tps->desc.ramp_delay = TPS51632_DEFAULT_RAMP_DELAY; tps->desc.min_uV = TPS51632_MIN_VOLATGE; tps->desc.uV_step = TPS51632_VOLATGE_STEP_10mV; - tps->desc.n_voltages = (TPS51632_MAX_VSEL - TPS51632_MIN_VSEL) + 1; + tps->desc.linear_min_sel = TPS51632_MIN_VSEL; + tps->desc.n_voltages = TPS51632_MAX_VSEL + 1; tps->desc.ops = &tps51632_dcdc_ops; tps->desc.type = REGULATOR_VOLTAGE; tps->desc.owner = THIS_MODULE; |