Regulators use the kernel notifier framework to send event to their interested
consumers.
+
+7. Regulator Direct Register Access
+===================================
+Some kinds of power management hardware or firmware are designed such that
+they need to do low-level hardware access to regulators, with no involvement
+from the kernel. Examples of such devices are:
+
+- clocksource with a voltage-controlled oscillator and control logic to change
+ the supply voltage over I2C to achieve a desired output clock rate
+- thermal management firmware that can issue an arbitrary I2C transaction to
+ perform system poweroff during overtemperature conditions
+
+To set up such a device/firmware, various parameters like I2C address of the
+regulator, addresses of various regulator registers etc. need to be configured
+to it. The regulator framework provides the following helpers for querying
+these details.
+
+Bus-specific details, like I2C addresses or transfer rates are handled by the
+regmap framework. To get the regulator's regmap (if supported), use :-
+
+struct regmap *regulator_get_regmap(struct regulator *regulator);
+
+To obtain the hardware register offset and bitmask for the regulator's voltage
+selector register, use :-
+
+int regulator_get_hardware_vsel_register(struct regulator *regulator,
+ unsigned *vsel_reg,
+ unsigned *vsel_mask);
+
+To convert a regulator framework voltage selector code (used by
+regulator_list_voltage) to a hardware-specific voltage selector that can be
+directly written to the voltage selector register, use :-
+
+int regulator_list_hardware_vsel(struct regulator *regulator,
+ unsigned selector);
converter 12A DC-DC Buck controlled through an I2C
interface.
+config REGULATOR_DA9211
+ tristate "Dialog Semiconductor DA9211/DA9212 regulator"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ Say y here to support for the Dialog Semiconductor DA9211/DA9212.
+ The DA9211/DA9212 is a multi-phase synchronous step down
+ converter 12A DC-DC Buck controlled through an I2C
+ interface.
+
config REGULATOR_DBX500_PRCMU
bool
obj-$(CONFIG_REGULATOR_DA9055) += da9055-regulator.o
obj-$(CONFIG_REGULATOR_DA9063) += da9063-regulator.o
obj-$(CONFIG_REGULATOR_DA9210) += da9210-regulator.o
+obj-$(CONFIG_REGULATOR_DA9211) += da9211-regulator.o
obj-$(CONFIG_REGULATOR_DBX500_PRCMU) += dbx500-prcmu.o
obj-$(CONFIG_REGULATOR_DB8500_PRCMU) += db8500-prcmu.o
obj-$(CONFIG_REGULATOR_FAN53555) += fan53555.o
#include <linux/suspend.h>
#include <linux/delay.h>
#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/regulator/of_regulator.h>
*/
struct regulator_enable_gpio {
struct list_head list;
- int gpio;
+ struct gpio_desc *gpiod;
u32 enable_count; /* a number of enabled shared GPIO */
u32 request_count; /* a number of requested shared GPIO */
unsigned int ena_gpio_invert:1;
const struct regulator_config *config)
{
struct regulator_enable_gpio *pin;
+ struct gpio_desc *gpiod;
int ret;
+ gpiod = gpio_to_desc(config->ena_gpio);
+
list_for_each_entry(pin, ®ulator_ena_gpio_list, list) {
- if (pin->gpio == config->ena_gpio) {
+ if (pin->gpiod == gpiod) {
rdev_dbg(rdev, "GPIO %d is already used\n",
config->ena_gpio);
goto update_ena_gpio_to_rdev;
return -ENOMEM;
}
- pin->gpio = config->ena_gpio;
+ pin->gpiod = gpiod;
pin->ena_gpio_invert = config->ena_gpio_invert;
list_add(&pin->list, ®ulator_ena_gpio_list);
/* Free the GPIO only in case of no use */
list_for_each_entry_safe(pin, n, ®ulator_ena_gpio_list, list) {
- if (pin->gpio == rdev->ena_pin->gpio) {
+ if (pin->gpiod == rdev->ena_pin->gpiod) {
if (pin->request_count <= 1) {
pin->request_count = 0;
- gpio_free(pin->gpio);
+ gpiod_put(pin->gpiod);
list_del(&pin->list);
kfree(pin);
} else {
if (enable) {
/* Enable GPIO at initial use */
if (pin->enable_count == 0)
- gpio_set_value_cansleep(pin->gpio,
- !pin->ena_gpio_invert);
+ gpiod_set_value_cansleep(pin->gpiod,
+ !pin->ena_gpio_invert);
pin->enable_count++;
} else {
/* Disable GPIO if not used */
if (pin->enable_count <= 1) {
- gpio_set_value_cansleep(pin->gpio,
- pin->ena_gpio_invert);
+ gpiod_set_value_cansleep(pin->gpiod,
+ pin->ena_gpio_invert);
pin->enable_count = 0;
}
}
}
EXPORT_SYMBOL_GPL(regulator_list_voltage);
+/**
+ * regulator_get_regmap - get the regulator's register map
+ * @regulator: regulator source
+ *
+ * Returns the register map for the given regulator, or an ERR_PTR value
+ * if the regulator doesn't use regmap.
+ */
+struct regmap *regulator_get_regmap(struct regulator *regulator)
+{
+ struct regmap *map = regulator->rdev->regmap;
+
+ return map ? map : ERR_PTR(-EOPNOTSUPP);
+}
+
+/**
+ * regulator_get_hardware_vsel_register - get the HW voltage selector register
+ * @regulator: regulator source
+ * @vsel_reg: voltage selector register, output parameter
+ * @vsel_mask: mask for voltage selector bitfield, output parameter
+ *
+ * Returns the hardware register offset and bitmask used for setting the
+ * regulator voltage. This might be useful when configuring voltage-scaling
+ * hardware or firmware that can make I2C requests behind the kernel's back,
+ * for example.
+ *
+ * On success, the output parameters @vsel_reg and @vsel_mask are filled in
+ * and 0 is returned, otherwise a negative errno is returned.
+ */
+int regulator_get_hardware_vsel_register(struct regulator *regulator,
+ unsigned *vsel_reg,
+ unsigned *vsel_mask)
+{
+ struct regulator_dev *rdev = regulator->rdev;
+ struct regulator_ops *ops = rdev->desc->ops;
+
+ if (ops->set_voltage_sel != regulator_set_voltage_sel_regmap)
+ return -EOPNOTSUPP;
+
+ *vsel_reg = rdev->desc->vsel_reg;
+ *vsel_mask = rdev->desc->vsel_mask;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(regulator_get_hardware_vsel_register);
+
+/**
+ * regulator_list_hardware_vsel - get the HW-specific register value for a selector
+ * @regulator: regulator source
+ * @selector: identify voltage to list
+ *
+ * Converts the selector to a hardware-specific voltage selector that can be
+ * directly written to the regulator registers. The address of the voltage
+ * register can be determined by calling @regulator_get_hardware_vsel_register.
+ *
+ * On error a negative errno is returned.
+ */
+int regulator_list_hardware_vsel(struct regulator *regulator,
+ unsigned selector)
+{
+ struct regulator_dev *rdev = regulator->rdev;
+ struct regulator_ops *ops = rdev->desc->ops;
+
+ if (selector >= rdev->desc->n_voltages)
+ return -EINVAL;
+ if (ops->set_voltage_sel != regulator_set_voltage_sel_regmap)
+ return -EOPNOTSUPP;
+
+ return selector;
+}
+EXPORT_SYMBOL_GPL(regulator_list_hardware_vsel);
+
/**
* regulator_get_linear_step - return the voltage step size between VSEL values
* @regulator: regulator source
--- /dev/null
+/*
+ * da9211-regulator.c - Regulator device driver for DA9211
+ * Copyright (C) 2014 Dialog Semiconductor Ltd.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ */
+
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regmap.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/regulator/da9211.h>
+#include "da9211-regulator.h"
+
+#define DA9211_BUCK_MODE_SLEEP 1
+#define DA9211_BUCK_MODE_SYNC 2
+#define DA9211_BUCK_MODE_AUTO 3
+
+/* DA9211 REGULATOR IDs */
+#define DA9211_ID_BUCKA 0
+#define DA9211_ID_BUCKB 1
+
+struct da9211 {
+ struct device *dev;
+ struct regmap *regmap;
+ struct da9211_pdata *pdata;
+ struct regulator_dev *rdev[DA9211_MAX_REGULATORS];
+ int num_regulator;
+ int chip_irq;
+};
+
+static const struct regmap_range_cfg da9211_regmap_range[] = {
+ {
+ .selector_reg = DA9211_REG_PAGE_CON,
+ .selector_mask = DA9211_REG_PAGE_MASK,
+ .selector_shift = DA9211_REG_PAGE_SHIFT,
+ .window_start = 0,
+ .window_len = 256,
+ .range_min = 0,
+ .range_max = 2*256,
+ },
+};
+
+static const struct regmap_config da9211_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = 2 * 256,
+ .ranges = da9211_regmap_range,
+ .num_ranges = ARRAY_SIZE(da9211_regmap_range),
+};
+
+/* Default limits measured in millivolts and milliamps */
+#define DA9211_MIN_MV 300
+#define DA9211_MAX_MV 1570
+#define DA9211_STEP_MV 10
+
+/* Current limits for buck (uA) indices corresponds with register values */
+static const int da9211_current_limits[] = {
+ 2000000, 2200000, 2400000, 2600000, 2800000, 3000000, 3200000, 3400000,
+ 3600000, 3800000, 4000000, 4200000, 4400000, 4600000, 4800000, 5000000
+};
+
+static unsigned int da9211_buck_get_mode(struct regulator_dev *rdev)
+{
+ int id = rdev_get_id(rdev);
+ struct da9211 *chip = rdev_get_drvdata(rdev);
+ unsigned int data;
+ int ret, mode = 0;
+
+ ret = regmap_read(chip->regmap, DA9211_REG_BUCKA_CONF+id, &data);
+ if (ret < 0)
+ return ret;
+
+ switch (data & 0x03) {
+ case DA9211_BUCK_MODE_SYNC:
+ mode = REGULATOR_MODE_FAST;
+ break;
+ case DA9211_BUCK_MODE_AUTO:
+ mode = REGULATOR_MODE_NORMAL;
+ break;
+ case DA9211_BUCK_MODE_SLEEP:
+ mode = REGULATOR_MODE_STANDBY;
+ break;
+ }
+
+ return mode;
+}
+
+static int da9211_buck_set_mode(struct regulator_dev *rdev,
+ unsigned int mode)
+{
+ int id = rdev_get_id(rdev);
+ struct da9211 *chip = rdev_get_drvdata(rdev);
+ int val = 0;
+
+ switch (mode) {
+ case REGULATOR_MODE_FAST:
+ val = DA9211_BUCK_MODE_SYNC;
+ break;
+ case REGULATOR_MODE_NORMAL:
+ val = DA9211_BUCK_MODE_AUTO;
+ break;
+ case REGULATOR_MODE_STANDBY:
+ val = DA9211_BUCK_MODE_SLEEP;
+ break;
+ }
+
+ return regmap_update_bits(chip->regmap, DA9211_REG_BUCKA_CONF+id,
+ 0x03, val);
+}
+
+static int da9211_set_current_limit(struct regulator_dev *rdev, int min,
+ int max)
+{
+ int id = rdev_get_id(rdev);
+ struct da9211 *chip = rdev_get_drvdata(rdev);
+ int i;
+
+ /* search for closest to maximum */
+ for (i = ARRAY_SIZE(da9211_current_limits)-1; i >= 0; i--) {
+ if (min <= da9211_current_limits[i] &&
+ max >= da9211_current_limits[i]) {
+ return regmap_update_bits(chip->regmap,
+ DA9211_REG_BUCK_ILIM,
+ (0x0F << id*4), (i << id*4));
+ }
+ }
+
+ return -EINVAL;
+}
+
+static int da9211_get_current_limit(struct regulator_dev *rdev)
+{
+ int id = rdev_get_id(rdev);
+ struct da9211 *chip = rdev_get_drvdata(rdev);
+ unsigned int data;
+ int ret;
+
+ ret = regmap_read(chip->regmap, DA9211_REG_BUCK_ILIM, &data);
+ if (ret < 0)
+ return ret;
+
+ /* select one of 16 values: 0000 (2000mA) to 1111 (5000mA) */
+ data = (data >> id*4) & 0x0F;
+ return da9211_current_limits[data];
+}
+
+static struct regulator_ops da9211_buck_ops = {
+ .get_mode = da9211_buck_get_mode,
+ .set_mode = da9211_buck_set_mode,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .list_voltage = regulator_list_voltage_linear,
+ .set_current_limit = da9211_set_current_limit,
+ .get_current_limit = da9211_get_current_limit,
+};
+
+#define DA9211_BUCK(_id) \
+{\
+ .name = #_id,\
+ .ops = &da9211_buck_ops,\
+ .type = REGULATOR_VOLTAGE,\
+ .id = DA9211_ID_##_id,\
+ .n_voltages = (DA9211_MAX_MV - DA9211_MIN_MV) / DA9211_STEP_MV + 1,\
+ .min_uV = (DA9211_MIN_MV * 1000),\
+ .uV_step = (DA9211_STEP_MV * 1000),\
+ .enable_reg = DA9211_REG_BUCKA_CONT + DA9211_ID_##_id,\
+ .enable_mask = DA9211_BUCKA_EN,\
+ .vsel_reg = DA9211_REG_VBUCKA_A + DA9211_ID_##_id * 2,\
+ .vsel_mask = DA9211_VBUCK_MASK,\
+ .owner = THIS_MODULE,\
+}
+
+static struct regulator_desc da9211_regulators[] = {
+ DA9211_BUCK(BUCKA),
+ DA9211_BUCK(BUCKB),
+};
+
+static irqreturn_t da9211_irq_handler(int irq, void *data)
+{
+ struct da9211 *chip = data;
+ int reg_val, err, ret = IRQ_NONE;
+
+ err = regmap_read(chip->regmap, DA9211_REG_EVENT_B, ®_val);
+ if (err < 0)
+ goto error_i2c;
+
+ if (reg_val & DA9211_E_OV_CURR_A) {
+ regulator_notifier_call_chain(chip->rdev[0],
+ REGULATOR_EVENT_OVER_CURRENT,
+ rdev_get_drvdata(chip->rdev[0]));
+
+ err = regmap_write(chip->regmap, DA9211_REG_EVENT_B,
+ DA9211_E_OV_CURR_A);
+ if (err < 0)
+ goto error_i2c;
+
+ ret = IRQ_HANDLED;
+ }
+
+ if (reg_val & DA9211_E_OV_CURR_B) {
+ regulator_notifier_call_chain(chip->rdev[1],
+ REGULATOR_EVENT_OVER_CURRENT,
+ rdev_get_drvdata(chip->rdev[1]));
+
+ err = regmap_write(chip->regmap, DA9211_REG_EVENT_B,
+ DA9211_E_OV_CURR_B);
+ if (err < 0)
+ goto error_i2c;
+
+ ret = IRQ_HANDLED;
+ }
+
+ return ret;
+
+error_i2c:
+ dev_err(chip->dev, "I2C error : %d\n", err);
+ return IRQ_NONE;
+}
+
+static int da9211_regulator_init(struct da9211 *chip)
+{
+ struct regulator_config config = { };
+ int i, ret;
+ unsigned int data;
+
+ ret = regmap_read(chip->regmap, DA9211_REG_CONFIG_E, &data);
+ if (ret < 0) {
+ dev_err(chip->dev, "Failed to read CONTROL_E reg: %d\n", ret);
+ return ret;
+ }
+
+ data &= DA9211_SLAVE_SEL;
+ /* If configuration for 1/2 bucks is different between platform data
+ * and the register, driver should exit.
+ */
+ if ((chip->pdata->num_buck == 2 && data == 0x40)
+ || (chip->pdata->num_buck == 1 && data == 0x00)) {
+ if (data == 0)
+ chip->num_regulator = 1;
+ else
+ chip->num_regulator = 2;
+ } else {
+ dev_err(chip->dev, "Configuration is mismatched\n");
+ return -EINVAL;
+ }
+
+ for (i = 0; i < chip->num_regulator; i++) {
+ if (chip->pdata)
+ config.init_data =
+ &(chip->pdata->init_data[i]);
+
+ config.dev = chip->dev;
+ config.driver_data = chip;
+ config.regmap = chip->regmap;
+
+ chip->rdev[i] = devm_regulator_register(chip->dev,
+ &da9211_regulators[i], &config);
+ if (IS_ERR(chip->rdev[i])) {
+ dev_err(chip->dev,
+ "Failed to register DA9211 regulator\n");
+ return PTR_ERR(chip->rdev[i]);
+ }
+
+ if (chip->chip_irq != 0) {
+ ret = regmap_update_bits(chip->regmap,
+ DA9211_REG_MASK_B, DA9211_M_OV_CURR_A << i, 1);
+ if (ret < 0) {
+ dev_err(chip->dev,
+ "Failed to update mask reg: %d\n", ret);
+ return ret;
+ }
+ }
+ }
+
+ return 0;
+}
+/*
+ * I2C driver interface functions
+ */
+static int da9211_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct da9211 *chip;
+ int error, ret;
+
+ chip = devm_kzalloc(&i2c->dev, sizeof(struct da9211), GFP_KERNEL);
+
+ chip->dev = &i2c->dev;
+ chip->regmap = devm_regmap_init_i2c(i2c, &da9211_regmap_config);
+ if (IS_ERR(chip->regmap)) {
+ error = PTR_ERR(chip->regmap);
+ dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
+ error);
+ return error;
+ }
+
+ i2c_set_clientdata(i2c, chip);
+
+ chip->pdata = i2c->dev.platform_data;
+ if (!chip->pdata) {
+ dev_err(&i2c->dev, "No platform init data supplied\n");
+ return -ENODEV;
+ }
+
+ chip->chip_irq = i2c->irq;
+
+ if (chip->chip_irq != 0) {
+ ret = devm_request_threaded_irq(chip->dev, chip->chip_irq, NULL,
+ da9211_irq_handler,
+ IRQF_TRIGGER_LOW|IRQF_ONESHOT,
+ "da9211", chip);
+ if (ret != 0) {
+ dev_err(chip->dev, "Failed to request IRQ: %d\n",
+ chip->chip_irq);
+ return ret;
+ }
+ } else {
+ dev_warn(chip->dev, "No IRQ configured\n");
+ }
+
+ ret = da9211_regulator_init(chip);
+
+ if (ret < 0)
+ dev_err(&i2c->dev, "Failed to initialize regulator: %d\n", ret);
+
+ return ret;
+}
+
+static const struct i2c_device_id da9211_i2c_id[] = {
+ {"da9211", 0},
+ {},
+};
+
+MODULE_DEVICE_TABLE(i2c, da9211_i2c_id);
+
+static struct i2c_driver da9211_regulator_driver = {
+ .driver = {
+ .name = "da9211",
+ .owner = THIS_MODULE,
+ },
+ .probe = da9211_i2c_probe,
+ .id_table = da9211_i2c_id,
+};
+
+module_i2c_driver(da9211_regulator_driver);
+
+MODULE_AUTHOR("James Ban <James.Ban.opensource@diasemi.com>");
+MODULE_DESCRIPTION("Regulator device driver for Dialog DA9211");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+/*
+ * da9211-regulator.h - Regulator definitions for DA9211
+ * Copyright (C) 2014 Dialog Semiconductor Ltd.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ */
+
+#ifndef __DA9211_REGISTERS_H__
+#define __DA9211_REGISTERS_H__
+
+/* Page selection */
+#define DA9211_REG_PAGE_CON 0x00
+
+/* System Control and Event Registers */
+#define DA9211_REG_STATUS_A 0x50
+#define DA9211_REG_STATUS_B 0x51
+#define DA9211_REG_EVENT_A 0x52
+#define DA9211_REG_EVENT_B 0x53
+#define DA9211_REG_MASK_A 0x54
+#define DA9211_REG_MASK_B 0x55
+#define DA9211_REG_CONTROL_A 0x56
+
+/* GPIO Control Registers */
+#define DA9211_REG_GPIO_0_1 0x58
+#define DA9211_REG_GPIO_2_3 0x59
+#define DA9211_REG_GPIO_4 0x5A
+
+/* Regulator Registers */
+#define DA9211_REG_BUCKA_CONT 0x5D
+#define DA9211_REG_BUCKB_CONT 0x5E
+#define DA9211_REG_BUCK_ILIM 0xD0
+#define DA9211_REG_BUCKA_CONF 0xD1
+#define DA9211_REG_BUCKB_CONF 0xD2
+#define DA9211_REG_BUCK_CONF 0xD3
+#define DA9211_REG_VBACKA_MAX 0xD5
+#define DA9211_REG_VBACKB_MAX 0xD6
+#define DA9211_REG_VBUCKA_A 0xD7
+#define DA9211_REG_VBUCKA_B 0xD8
+#define DA9211_REG_VBUCKB_A 0xD9
+#define DA9211_REG_VBUCKB_B 0xDA
+
+/* I2C Interface Settings */
+#define DA9211_REG_INTERFACE 0x105
+
+/* BUCK Phase Selection*/
+#define DA9211_REG_CONFIG_E 0x147
+
+/*
+ * Registers bits
+ */
+/* DA9211_REG_PAGE_CON (addr=0x00) */
+#define DA9211_REG_PAGE_SHIFT 1
+#define DA9211_REG_PAGE_MASK 0x02
+/* On I2C registers 0x00 - 0xFF */
+#define DA9211_REG_PAGE0 0
+/* On I2C registers 0x100 - 0x1FF */
+#define DA9211_REG_PAGE2 2
+#define DA9211_PAGE_WRITE_MODE 0x00
+#define DA9211_REPEAT_WRITE_MODE 0x40
+#define DA9211_PAGE_REVERT 0x80
+
+/* DA9211_REG_STATUS_A (addr=0x50) */
+#define DA9211_GPI0 0x01
+#define DA9211_GPI1 0x02
+#define DA9211_GPI2 0x04
+#define DA9211_GPI3 0x08
+#define DA9211_GPI4 0x10
+
+/* DA9211_REG_EVENT_A (addr=0x52) */
+#define DA9211_E_GPI0 0x01
+#define DA9211_E_GPI1 0x02
+#define DA9211_E_GPI2 0x04
+#define DA9211_E_GPI3 0x08
+#define DA9211_E_GPI4 0x10
+#define DA9211_E_UVLO_IO 0x40
+
+/* DA9211_REG_EVENT_B (addr=0x53) */
+#define DA9211_E_PWRGOOD_A 0x01
+#define DA9211_E_PWRGOOD_B 0x02
+#define DA9211_E_TEMP_WARN 0x04
+#define DA9211_E_TEMP_CRIT 0x08
+#define DA9211_E_OV_CURR_A 0x10
+#define DA9211_E_OV_CURR_B 0x20
+
+/* DA9211_REG_MASK_A (addr=0x54) */
+#define DA9211_M_GPI0 0x01
+#define DA9211_M_GPI1 0x02
+#define DA9211_M_GPI2 0x04
+#define DA9211_M_GPI3 0x08
+#define DA9211_M_GPI4 0x10
+#define DA9211_M_UVLO_IO 0x40
+
+/* DA9211_REG_MASK_B (addr=0x55) */
+#define DA9211_M_PWRGOOD_A 0x01
+#define DA9211_M_PWRGOOD_B 0x02
+#define DA9211_M_TEMP_WARN 0x04
+#define DA9211_M_TEMP_CRIT 0x08
+#define DA9211_M_OV_CURR_A 0x10
+#define DA9211_M_OV_CURR_B 0x20
+
+/* DA9211_REG_CONTROL_A (addr=0x56) */
+#define DA9211_DEBOUNCING_SHIFT 0
+#define DA9211_DEBOUNCING_MASK 0x07
+#define DA9211_SLEW_RATE_SHIFT 3
+#define DA9211_SLEW_RATE_A_MASK 0x18
+#define DA9211_SLEW_RATE_B_SHIFT 5
+#define DA9211_SLEW_RATE_B_MASK 0x60
+#define DA9211_V_LOCK 0x80
+
+/* DA9211_REG_GPIO_0_1 (addr=0x58) */
+#define DA9211_GPIO0_PIN_SHIFT 0
+#define DA9211_GPIO0_PIN_MASK 0x03
+#define DA9211_GPIO0_PIN_GPI 0x00
+#define DA9211_GPIO0_PIN_GPO_OD 0x02
+#define DA9211_GPIO0_PIN_GPO 0x03
+#define DA9211_GPIO0_TYPE 0x04
+#define DA9211_GPIO0_TYPE_GPI 0x00
+#define DA9211_GPIO0_TYPE_GPO 0x04
+#define DA9211_GPIO0_MODE 0x08
+#define DA9211_GPIO1_PIN_SHIFT 4
+#define DA9211_GPIO1_PIN_MASK 0x30
+#define DA9211_GPIO1_PIN_GPI 0x00
+#define DA9211_GPIO1_PIN_VERROR 0x10
+#define DA9211_GPIO1_PIN_GPO_OD 0x20
+#define DA9211_GPIO1_PIN_GPO 0x30
+#define DA9211_GPIO1_TYPE_SHIFT 0x40
+#define DA9211_GPIO1_TYPE_GPI 0x00
+#define DA9211_GPIO1_TYPE_GPO 0x40
+#define DA9211_GPIO1_MODE 0x80
+
+/* DA9211_REG_GPIO_2_3 (addr=0x59) */
+#define DA9211_GPIO2_PIN_SHIFT 0
+#define DA9211_GPIO2_PIN_MASK 0x03
+#define DA9211_GPIO2_PIN_GPI 0x00
+#define DA9211_GPIO5_PIN_BUCK_CLK 0x10
+#define DA9211_GPIO2_PIN_GPO_OD 0x02
+#define DA9211_GPIO2_PIN_GPO 0x03
+#define DA9211_GPIO2_TYPE 0x04
+#define DA9211_GPIO2_TYPE_GPI 0x00
+#define DA9211_GPIO2_TYPE_GPO 0x04
+#define DA9211_GPIO2_MODE 0x08
+#define DA9211_GPIO3_PIN_SHIFT 4
+#define DA9211_GPIO3_PIN_MASK 0x30
+#define DA9211_GPIO3_PIN_GPI 0x00
+#define DA9211_GPIO3_PIN_IERROR 0x10
+#define DA9211_GPIO3_PIN_GPO_OD 0x20
+#define DA9211_GPIO3_PIN_GPO 0x30
+#define DA9211_GPIO3_TYPE_SHIFT 0x40
+#define DA9211_GPIO3_TYPE_GPI 0x00
+#define DA9211_GPIO3_TYPE_GPO 0x40
+#define DA9211_GPIO3_MODE 0x80
+
+/* DA9211_REG_GPIO_4 (addr=0x5A) */
+#define DA9211_GPIO4_PIN_SHIFT 0
+#define DA9211_GPIO4_PIN_MASK 0x03
+#define DA9211_GPIO4_PIN_GPI 0x00
+#define DA9211_GPIO4_PIN_GPO_OD 0x02
+#define DA9211_GPIO4_PIN_GPO 0x03
+#define DA9211_GPIO4_TYPE 0x04
+#define DA9211_GPIO4_TYPE_GPI 0x00
+#define DA9211_GPIO4_TYPE_GPO 0x04
+#define DA9211_GPIO4_MODE 0x08
+
+/* DA9211_REG_BUCKA_CONT (addr=0x5D) */
+#define DA9211_BUCKA_EN 0x01
+#define DA9211_BUCKA_GPI_SHIFT 1
+#define DA9211_BUCKA_GPI_MASK 0x06
+#define DA9211_BUCKA_GPI_OFF 0x00
+#define DA9211_BUCKA_GPI_GPIO0 0x02
+#define DA9211_BUCKA_GPI_GPIO1 0x04
+#define DA9211_BUCKA_GPI_GPIO3 0x06
+#define DA9211_BUCKA_PD_DIS 0x08
+#define DA9211_VBUCKA_SEL 0x10
+#define DA9211_VBUCKA_SEL_A 0x00
+#define DA9211_VBUCKA_SEL_B 0x10
+#define DA9211_VBUCKA_GPI_SHIFT 5
+#define DA9211_VBUCKA_GPI_MASK 0x60
+#define DA9211_VBUCKA_GPI_OFF 0x00
+#define DA9211_VBUCKA_GPI_GPIO1 0x20
+#define DA9211_VBUCKA_GPI_GPIO2 0x40
+#define DA9211_VBUCKA_GPI_GPIO4 0x60
+
+/* DA9211_REG_BUCKB_CONT (addr=0x5E) */
+#define DA9211_BUCKB_EN 0x01
+#define DA9211_BUCKB_GPI_SHIFT 1
+#define DA9211_BUCKB_GPI_MASK 0x06
+#define DA9211_BUCKB_GPI_OFF 0x00
+#define DA9211_BUCKB_GPI_GPIO0 0x02
+#define DA9211_BUCKB_GPI_GPIO1 0x04
+#define DA9211_BUCKB_GPI_GPIO3 0x06
+#define DA9211_BUCKB_PD_DIS 0x08
+#define DA9211_VBUCKB_SEL 0x10
+#define DA9211_VBUCKB_SEL_A 0x00
+#define DA9211_VBUCKB_SEL_B 0x10
+#define DA9211_VBUCKB_GPI_SHIFT 5
+#define DA9211_VBUCKB_GPI_MASK 0x60
+#define DA9211_VBUCKB_GPI_OFF 0x00
+#define DA9211_VBUCKB_GPI_GPIO1 0x20
+#define DA9211_VBUCKB_GPI_GPIO2 0x40
+#define DA9211_VBUCKB_GPI_GPIO4 0x60
+
+/* DA9211_REG_BUCK_ILIM (addr=0xD0) */
+#define DA9211_BUCKA_ILIM_SHIFT 0
+#define DA9211_BUCKA_ILIM_MASK 0x0F
+#define DA9211_BUCKB_ILIM_SHIFT 4
+#define DA9211_BUCKB_ILIM_MASK 0xF0
+
+/* DA9211_REG_BUCKA_CONF (addr=0xD1) */
+#define DA9211_BUCKA_MODE_SHIFT 0
+#define DA9211_BUCKA_MODE_MASK 0x03
+#define DA9211_BUCKA_MODE_MANUAL 0x00
+#define DA9211_BUCKA_MODE_SLEEP 0x01
+#define DA9211_BUCKA_MODE_SYNC 0x02
+#define DA9211_BUCKA_MODE_AUTO 0x03
+#define DA9211_BUCKA_UP_CTRL_SHIFT 2
+#define DA9211_BUCKA_UP_CTRL_MASK 0x1C
+#define DA9211_BUCKA_DOWN_CTRL_SHIFT 5
+#define DA9211_BUCKA_DOWN_CTRL_MASK 0xE0
+
+/* DA9211_REG_BUCKB_CONF (addr=0xD2) */
+#define DA9211_BUCKB_MODE_SHIFT 0
+#define DA9211_BUCKB_MODE_MASK 0x03
+#define DA9211_BUCKB_MODE_MANUAL 0x00
+#define DA9211_BUCKB_MODE_SLEEP 0x01
+#define DA9211_BUCKB_MODE_SYNC 0x02
+#define DA9211_BUCKB_MODE_AUTO 0x03
+#define DA9211_BUCKB_UP_CTRL_SHIFT 2
+#define DA9211_BUCKB_UP_CTRL_MASK 0x1C
+#define DA9211_BUCKB_DOWN_CTRL_SHIFT 5
+#define DA9211_BUCKB_DOWN_CTRL_MASK 0xE0
+
+/* DA9211_REG_BUCK_CONF (addr=0xD3) */
+#define DA9211_PHASE_SEL_A_SHIFT 0
+#define DA9211_PHASE_SEL_A_MASK 0x03
+#define DA9211_PHASE_SEL_B_SHIFT 2
+#define DA9211_PHASE_SEL_B_MASK 0x04
+#define DA9211_PH_SH_EN_A_SHIFT 3
+#define DA9211_PH_SH_EN_A_MASK 0x08
+#define DA9211_PH_SH_EN_B_SHIFT 4
+#define DA9211_PH_SH_EN_B_MASK 0x10
+
+/* DA9211_REG_VBUCKA_MAX (addr=0xD5) */
+#define DA9211_VBUCKA_BASE_SHIFT 0
+#define DA9211_VBUCKA_BASE_MASK 0x7F
+
+/* DA9211_REG_VBUCKB_MAX (addr=0xD6) */
+#define DA9211_VBUCKB_BASE_SHIFT 0
+#define DA9211_VBUCKB_BASE_MASK 0x7F
+
+/* DA9211_REG_VBUCKA/B_A/B (addr=0xD7/0xD8/0xD9/0xDA) */
+#define DA9211_VBUCK_SHIFT 0
+#define DA9211_VBUCK_MASK 0x7F
+#define DA9211_VBUCK_BIAS 0
+#define DA9211_BUCK_SL 0x80
+
+/* DA9211_REG_INTERFACE (addr=0x105) */
+#define DA9211_IF_BASE_ADDR_SHIFT 4
+#define DA9211_IF_BASE_ADDR_MASK 0xF0
+
+/* DA9211_REG_CONFIG_E (addr=0x147) */
+#define DA9211_SLAVE_SEL 0x40
+
+#endif /* __DA9211_REGISTERS_H__ */
struct device_node *np = dev->of_node;
struct lp872x_platform_data *pdata;
struct of_regulator_match *match;
- struct regulator_init_data *d;
int num_matches;
int count;
int i;
pdata->regulator_data[i].id =
(enum lp872x_regulator_id)match[i].driver_data;
pdata->regulator_data[i].init_data = match[i].init_data;
-
- /* Operation mode configuration for buck/buck1/buck2 */
- if (strncmp(match[i].name, "buck", 4))
- continue;
-
- d = pdata->regulator_data[i].init_data;
- d->constraints.valid_modes_mask |= LP872X_VALID_OPMODE;
- d->constraints.valid_ops_mask |= REGULATOR_CHANGE_MODE;
}
out:
return pdata;
struct device;
struct notifier_block;
+struct regmap;
/*
* Regulator operating modes.
int regulator_allow_bypass(struct regulator *regulator, bool allow);
+struct regmap *regulator_get_regmap(struct regulator *regulator);
+int regulator_get_hardware_vsel_register(struct regulator *regulator,
+ unsigned *vsel_reg,
+ unsigned *vsel_mask);
+int regulator_list_hardware_vsel(struct regulator *regulator,
+ unsigned selector);
+
/* regulator notifier block */
int regulator_register_notifier(struct regulator *regulator,
struct notifier_block *nb);
return 0;
}
+static inline struct regmap *regulator_get_regmap(struct regulator *regulator)
+{
+ return ERR_PTR(-EOPNOTSUPP);
+}
+
+static inline int regulator_get_hardware_vsel_register(struct regulator *regulator,
+ unsigned *vsel_reg,
+ unsigned *vsel_mask)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline int regulator_list_hardware_vsel(struct regulator *regulator,
+ unsigned selector)
+{
+ return -EOPNOTSUPP;
+}
+
static inline int regulator_register_notifier(struct regulator *regulator,
struct notifier_block *nb)
{
--- /dev/null
+/*
+ * da9211.h - Regulator device driver for DA9211
+ * Copyright (C) 2014 Dialog Semiconductor Ltd.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ */
+
+#ifndef __LINUX_REGULATOR_DA9211_H
+#define __LINUX_REGULATOR_DA9211_H
+
+#include <linux/regulator/machine.h>
+
+#define DA9211_MAX_REGULATORS 2
+
+struct da9211_pdata {
+ /*
+ * Number of buck
+ * 1 : 4 phase 1 buck
+ * 2 : 2 phase 2 buck
+ */
+ int num_buck;
+ struct regulator_init_data *init_data;
+};
+#endif
projects / cascardo / linux.git / commitdiff