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regulator: Updates for v4.10

Browse Source 
A quiet release for the regulator API, conference season must've been
 slowing everyone down:
 
  - A new interface allowing drivers to provide an interface for reading
    a more detailed description of error conditions which allows devices
    using these regulators to build
  - ACPI support for the fixed voltage regulator.
  - Cleanups for the TI TWL drivers to reduce code duplication.
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Merge tag 'regulator-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "A quiet release for the regulator API, conference season must've been
  slowing everyone down:

   - a new interface allowing drivers to provide an interface for
     reading a more detailed description of error conditions which
     allows devices using these regulators to build

   - ACPI support for the fixed voltage regulator.

   - cleanups for the TI TWL drivers to reduce code duplication"

* tag 'regulator-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (24 commits)
  regulator: tps65086: Fix 25mV ranges for BUCK regulators 1, 2, and 6
  regulator: Fix regulator_get_error_flags() signature mismatch
  regulator: core: add newline in debug message
  regulator: tps65086: Fix 25mV ranges for BUCK regulators
  regulator: core: Correct type of mode in regulator_mode_constrain
  regulator: max77620: add documentation for MPOK property
  regulator: max77620: add support to configure MPOK
  regulator: twl6030: Remove unused fields from struct twlreg_info
  regulator: twl: Remove unused fields from struct twlreg_info
  regulator: twl: split twl6030 logic into its own file
  regulator: twl: kill unused functions
  regulator: twl: make driver DT only
  regulator: twl-regulator: rework fixed regulator definition
  regulator: max77620: remove unused variable
  regulator: pwm: Add missing quotes to DT example
  regulator: stw481x-vmmc: fix ages old enable error
  regulator: gpio: properly check return value of of_get_named_gpio
  regulator: lp873x: Add support for populating input supply
  regulator: axp20x: Fix axp809 ldo_io registration error on cold boot
  regulators: helpers: Fix handling of bypass_val_on in get_bypass_regmap
  ...
This commit is contained in:
Linus Torvalds 2016-12-13 08:31:04 -08:00
commit 58f253d262
22 changed files with 1051 additions and 694 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
Documentation/devicetree/bindings/mfd/lp873x.txt
View File

@ -7,6 +7,9 @@ Required properties:
- #gpio-cells: Should be two. The first cell is the pin number and
the second cell is used to specify flags.
See ../gpio/gpio.txt for more information.
- xxx-in-supply: Phandle to parent supply node of each regulator
populated under regulators node. xxx can be
buck0, buck1, ldo0 or ldo1.
- regulators: List of child nodes that specify the regulator
initialization data.
Example:
@ -17,6 +20,11 @@ pmic: lp8733@60 {
gpio-controller;
#gpio-cells = <2>;
buck0-in-supply = <&vsys_3v3>;
buck1-in-supply = <&vsys_3v3>;
ldo0-in-supply = <&vsys_3v3>;
ldo1-in-supply = <&vsys_3v3>;
regulators {
lp8733_buck0: buck0 {
regulator-name = "lp8733-buck0";

12
Documentation/devicetree/bindings/mfd/max77620.txt
View File

@ -106,6 +106,18 @@ Here supported time periods by device in microseconds are as follows:
MAX77620 supports 40, 80, 160, 320, 640, 1280, 2560 and 5120 microseconds.
MAX20024 supports 20, 40, 80, 160, 320, 640, 1280 and 2540 microseconds.
-maxim,power-ok-control: configure map power ok bit
1: Enables POK(Power OK) to control nRST_IO and GPIO1
POK function.
0: Disables POK control.
if property missing, do not configure MPOK bit.
If POK mapping is enabled for GPIO1/nRST_IO then,
GPIO1/nRST_IO pins are HIGH only if all rails
that have POK control enabled are HIGH.
If any of the rails goes down(which are enabled for POK
control) then, GPIO1/nRST_IO goes LOW.
this property is valid for max20024 only.
For DT binding details of different sub modules like GPIO, pincontrol,
regulator, power, please refer respective device-tree binding document
under their respective sub-system directories.

2
Documentation/devicetree/bindings/mfd/tps65086.txt
View File

@ -23,7 +23,7 @@ Required properties:
defined below.
Optional regulator properties:
- ti,regulator-step-size-25mv : This is applicable for buck[1,2,6], set this
- ti,regulator-step-size-25mv : This is applicable for buck[1-6], set this
if the regulator is factory set with a 25mv
step voltage mapping.
- ti,regulator-decay : This is applicable for buck[1-6], set this if

4
Documentation/devicetree/bindings/regulator/pwm-regulator.txt
View File

@ -59,7 +59,7 @@ Any property defined as part of the core regulator binding can also be used.
Continuous Voltage With Enable GPIO Example:
pwm_regulator {
compatible = "pwm-regulator;
compatible = "pwm-regulator";
pwms = <&pwm1 0 8448 0>;
enable-gpios = <&gpio0 23 GPIO_ACTIVE_HIGH>;
regulator-min-microvolt = <1016000>;
@ -76,7 +76,7 @@ Continuous Voltage With Enable GPIO Example:
Voltage Table Example:
pwm_regulator {
compatible = "pwm-regulator;
compatible = "pwm-regulator";
pwms = <&pwm1 0 8448 0>;
regulator-min-microvolt = <1016000>;
regulator-max-microvolt = <1114000>;

1
MAINTAINERS
View File

@ -8761,6 +8761,7 @@ F: drivers/regulator/tps65217-regulator.c
F: drivers/regulator/tps65218-regulator.c
F: drivers/regulator/tps65910-regulator.c
F: drivers/regulator/twl-regulator.c
F: drivers/regulator/twl6030-regulator.c
F: include/linux/i2c-omap.h
OMAP DEVICE TREE SUPPORT

2
drivers/regulator/Makefile
View File

@ -104,7 +104,7 @@ obj-$(CONFIG_REGULATOR_TPS6586X) += tps6586x-regulator.o
obj-$(CONFIG_REGULATOR_TPS65910) += tps65910-regulator.o
obj-$(CONFIG_REGULATOR_TPS65912) += tps65912-regulator.o
obj-$(CONFIG_REGULATOR_TPS80031) += tps80031-regulator.o
obj-$(CONFIG_REGULATOR_TWL4030) += twl-regulator.o
obj-$(CONFIG_REGULATOR_TWL4030) += twl-regulator.o twl6030-regulator.o
obj-$(CONFIG_REGULATOR_VEXPRESS) += vexpress-regulator.o
obj-$(CONFIG_REGULATOR_WM831X) += wm831x-dcdc.o
obj-$(CONFIG_REGULATOR_WM831X) += wm831x-isink.o

2
drivers/regulator/arizona-ldo1.c
View File

@ -130,6 +130,7 @@ static const struct regulator_desc arizona_ldo1_hc = {
.uV_step = 50000,
.n_voltages = 8,
.enable_time = 1500,
.ramp_delay = 24000,
.owner = THIS_MODULE,
};
@ -153,6 +154,7 @@ static const struct regulator_desc arizona_ldo1 = {
.uV_step = 25000,
.n_voltages = 13,
.enable_time = 500,
.ramp_delay = 24000,
.owner = THIS_MODULE,
};

12
drivers/regulator/axp20x-regulator.c
View File

@ -337,10 +337,18 @@ static const struct regulator_desc axp809_regulators[] = {
AXP22X_ELDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(1)),
AXP_DESC(AXP809, ELDO3, "eldo3", "eldoin", 700, 3300, 100,
AXP22X_ELDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(2)),
AXP_DESC_IO(AXP809, LDO_IO0, "ldo_io0", "ips", 700, 3300, 100,
/*
* Note the datasheet only guarantees reliable operation up to
* 3.3V, this needs to be enforced via dts provided constraints
*/
AXP_DESC_IO(AXP809, LDO_IO0, "ldo_io0", "ips", 700, 3800, 100,
AXP22X_LDO_IO0_V_OUT, 0x1f, AXP20X_GPIO0_CTRL, 0x07,
AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
AXP_DESC_IO(AXP809, LDO_IO1, "ldo_io1", "ips", 700, 3300, 100,
/*
* Note the datasheet only guarantees reliable operation up to
* 3.3V, this needs to be enforced via dts provided constraints
*/
AXP_DESC_IO(AXP809, LDO_IO1, "ldo_io1", "ips", 700, 3800, 100,
AXP22X_LDO_IO1_V_OUT, 0x1f, AXP20X_GPIO1_CTRL, 0x07,
AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
AXP_DESC_FIXED(AXP809, RTC_LDO, "rtc_ldo", "ips", 1800),

38
drivers/regulator/core.c
View File

@ -204,7 +204,7 @@ static struct device_node *of_get_regulator(struct device *dev, const char *supp
regnode = of_parse_phandle(dev->of_node, prop_name, 0);
if (!regnode) {
dev_dbg(dev, "Looking up %s property in node %s failed",
dev_dbg(dev, "Looking up %s property in node %s failed\n",
prop_name, dev->of_node->full_name);
return NULL;
}
@ -293,7 +293,8 @@ static int regulator_check_current_limit(struct regulator_dev *rdev,
}
/* operating mode constraint check */
static int regulator_mode_constrain(struct regulator_dev *rdev, int *mode)
static int regulator_mode_constrain(struct regulator_dev *rdev,
unsigned int *mode)
{
switch (*mode) {
case REGULATOR_MODE_FAST:
@ -3359,6 +3360,39 @@ unsigned int regulator_get_mode(struct regulator *regulator)
}
EXPORT_SYMBOL_GPL(regulator_get_mode);
static int _regulator_get_error_flags(struct regulator_dev *rdev,
unsigned int *flags)
{
int ret;
mutex_lock(&rdev->mutex);
/* sanity check */
if (!rdev->desc->ops->get_error_flags) {
ret = -EINVAL;
goto out;
}
ret = rdev->desc->ops->get_error_flags(rdev, flags);
out:
mutex_unlock(&rdev->mutex);
return ret;
}
/**
* regulator_get_error_flags - get regulator error information
* @regulator: regulator source
* @flags: pointer to store error flags
*
* Get the current regulator error information.
*/
int regulator_get_error_flags(struct regulator *regulator,
unsigned int *flags)
{
return _regulator_get_error_flags(regulator->rdev, flags);
}
EXPORT_SYMBOL_GPL(regulator_get_error_flags);
/**
* regulator_set_load - set regulator load
* @regulator: regulator source

46
drivers/regulator/fixed.c
View File

@ -30,6 +30,9 @@
#include <linux/of_gpio.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regulator/machine.h>
#include <linux/acpi.h>
#include <linux/property.h>
#include <linux/gpio/consumer.h>
struct fixed_voltage_data {
struct regulator_desc desc;
@ -94,6 +97,44 @@ of_get_fixed_voltage_config(struct device *dev,
return config;
}
/**
* acpi_get_fixed_voltage_config - extract fixed_voltage_config structure info
* @dev: device requesting for fixed_voltage_config
* @desc: regulator description
*
* Populates fixed_voltage_config structure by extracting data through ACPI
* interface, returns a pointer to the populated structure of NULL if memory
* alloc fails.
*/
static struct fixed_voltage_config *
acpi_get_fixed_voltage_config(struct device *dev,
const struct regulator_desc *desc)
{
struct fixed_voltage_config *config;
const char *supply_name;
struct gpio_desc *gpiod;
int ret;
config = devm_kzalloc(dev, sizeof(*config), GFP_KERNEL);
if (!config)
return ERR_PTR(-ENOMEM);
ret = device_property_read_string(dev, "supply-name", &supply_name);
if (!ret)
config->supply_name = supply_name;
gpiod = gpiod_get(dev, "gpio", GPIOD_ASIS);
if (IS_ERR(gpiod))
return ERR_PTR(-ENODEV);
config->gpio = desc_to_gpio(gpiod);
config->enable_high = device_property_read_bool(dev,
"enable-active-high");
gpiod_put(gpiod);
return config;
}
static struct regulator_ops fixed_voltage_ops = {
};
@ -114,6 +155,11 @@ static int reg_fixed_voltage_probe(struct platform_device *pdev)
&drvdata->desc);
if (IS_ERR(config))
return PTR_ERR(config);
} else if (ACPI_HANDLE(&pdev->dev)) {
config = acpi_get_fixed_voltage_config(&pdev->dev,
&drvdata->desc);
if (IS_ERR(config))
return PTR_ERR(config);
} else {
config = dev_get_platdata(&pdev->dev);
}

9
drivers/regulator/gpio-regulator.c
View File

@ -162,8 +162,8 @@ of_get_gpio_regulator_config(struct device *dev, struct device_node *np,
of_property_read_u32(np, "startup-delay-us", &config->startup_delay);
config->enable_gpio = of_get_named_gpio(np, "enable-gpio", 0);
if (config->enable_gpio == -EPROBE_DEFER)
return ERR_PTR(-EPROBE_DEFER);
if (config->enable_gpio < 0 && config->enable_gpio != -ENOENT)
return ERR_PTR(config->enable_gpio);
/* Fetch GPIOs. - optional property*/
ret = of_gpio_count(np);
@ -190,8 +190,11 @@ of_get_gpio_regulator_config(struct device *dev, struct device_node *np,
for (i = 0; i < config->nr_gpios; i++) {
gpio = of_get_named_gpio(np, "gpios", i);
if (gpio < 0)
if (gpio < 0) {
if (gpio != -ENOENT)
return ERR_PTR(gpio);
break;
}
config->gpios[i].gpio = gpio;
if (proplen > 0) {
of_property_read_u32_index(np, "gpios-states",

6
drivers/regulator/helpers.c
View File

@ -454,13 +454,17 @@ EXPORT_SYMBOL_GPL(regulator_set_bypass_regmap);
int regulator_get_bypass_regmap(struct regulator_dev *rdev, bool *enable)
{
unsigned int val;
unsigned int val_on = rdev->desc->bypass_val_on;
int ret;
ret = regmap_read(rdev->regmap, rdev->desc->bypass_reg, &val);
if (ret != 0)
return ret;
*enable = (val & rdev->desc->bypass_mask) == rdev->desc->bypass_val_on;
if (!val_on)
val_on = rdev->desc->bypass_mask;
*enable = (val & rdev->desc->bypass_mask) == val_on;
return 0;
}

1
drivers/regulator/lp873x-regulator.c
View File

@ -24,6 +24,7 @@
[_id] = { \
.desc = { \
.name = _name, \
.supply_name = _of "-in", \
.id = _id, \
.of_match = of_match_ptr(_of), \
.regulators_node = of_match_ptr("regulators"),\

47
drivers/regulator/max77620-regulator.c
View File

@ -73,7 +73,6 @@ struct max77620_regulator_info {
};
struct max77620_regulator_pdata {
struct regulator_init_data *reg_idata;
int active_fps_src;
int active_fps_pd_slot;
int active_fps_pu_slot;
@ -81,6 +80,7 @@ struct max77620_regulator_pdata {
int suspend_fps_pd_slot;
int suspend_fps_pu_slot;
int current_mode;
int power_ok;
int ramp_rate_setting;
};
@ -351,11 +351,48 @@ static int max77620_set_slew_rate(struct max77620_regulator *pmic, int id,
return 0;
}
static int max77620_config_power_ok(struct max77620_regulator *pmic, int id)
{
struct max77620_regulator_pdata *rpdata = &pmic->reg_pdata[id];
struct max77620_regulator_info *rinfo = pmic->rinfo[id];
struct max77620_chip *chip = dev_get_drvdata(pmic->dev->parent);
u8 val, mask;
int ret;
switch (chip->chip_id) {
case MAX20024:
if (rpdata->power_ok >= 0) {
if (rinfo->type == MAX77620_REGULATOR_TYPE_SD)
mask = MAX20024_SD_CFG1_MPOK_MASK;
else
mask = MAX20024_LDO_CFG2_MPOK_MASK;
val = rpdata->power_ok ? mask : 0;
ret = regmap_update_bits(pmic->rmap, rinfo->cfg_addr,
mask, val);
if (ret < 0) {
dev_err(pmic->dev, "Reg 0x%02x update failed %d\n",
rinfo->cfg_addr, ret);
return ret;
}
}
break;
default:
break;
}
return 0;
}
static int max77620_init_pmic(struct max77620_regulator *pmic, int id)
{
struct max77620_regulator_pdata *rpdata = &pmic->reg_pdata[id];
int ret;
max77620_config_power_ok(pmic, id);
/* Update power mode */
ret = max77620_regulator_get_power_mode(pmic, id);
if (ret < 0)
@ -595,6 +632,12 @@ static int max77620_of_parse_cb(struct device_node *np,
np, "maxim,suspend-fps-power-down-slot", &pval);
rpdata->suspend_fps_pd_slot = (!ret) ? pval : -1;
ret = of_property_read_u32(np, "maxim,power-ok-control", &pval);
if (!ret)
rpdata->power_ok = pval;
else
rpdata->power_ok = -1;
ret = of_property_read_u32(np, "maxim,ramp-rate-setting", &pval);
rpdata->ramp_rate_setting = (!ret) ? pval : 0;
@ -807,6 +850,8 @@ static int max77620_regulator_resume(struct device *dev)
for (id = 0; id < MAX77620_NUM_REGS; id++) {
reg_pdata = &pmic->reg_pdata[id];
max77620_config_power_ok(pmic, id);
max77620_regulator_set_fps_slots(pmic, id, false);
if (reg_pdata->active_fps_src < 0)
continue;

3
drivers/regulator/stw481x-vmmc.c
View File

@ -47,7 +47,8 @@ static struct regulator_desc vmmc_regulator = {
.volt_table = stw481x_vmmc_voltages,
.enable_time = 200, /* FIXME: look this up */
.enable_reg = STW_CONF1,
.enable_mask = STW_CONF1_PDN_VMMC,
.enable_mask = STW_CONF1_PDN_VMMC | STW_CONF1_MMC_LS_STATUS,
.enable_val = STW_CONF1_PDN_VMMC,
.vsel_reg = STW_CONF1,
.vsel_mask = STW_CONF1_VMMC_MASK,
};

2
drivers/regulator/tps6507x-regulator.c
View File

@ -375,7 +375,7 @@ static struct tps6507x_board *tps6507x_parse_dt_reg_data(
struct device_node *np = pdev->dev.parent->of_node;
struct device_node *regulators;
struct of_regulator_match *matches;
static struct regulator_init_data *reg_data;
struct regulator_init_data *reg_data;
int idx = 0, count, ret;
tps_board = devm_kzalloc(&pdev->dev, sizeof(*tps_board),

51
drivers/regulator/tps65086-regulator.c
View File

@ -71,7 +71,7 @@ struct tps65086_regulator {
unsigned int decay_mask;
};
static const struct regulator_linear_range tps65086_buck126_10mv_ranges[] = {
static const struct regulator_linear_range tps65086_10mv_ranges[] = {
REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
REGULATOR_LINEAR_RANGE(410000, 0x1, 0x7F, 10000),
};
@ -82,7 +82,7 @@ static const struct regulator_linear_range tps65086_buck126_25mv_ranges[] = {
REGULATOR_LINEAR_RANGE(1025000, 0x19, 0x7F, 25000),
};
static const struct regulator_linear_range tps65086_buck345_ranges[] = {
static const struct regulator_linear_range tps65086_buck345_25mv_ranges[] = {
REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
REGULATOR_LINEAR_RANGE(425000, 0x1, 0x7F, 25000),
};
@ -125,27 +125,27 @@ static int tps65086_of_parse_cb(struct device_node *dev,
static struct tps65086_regulator regulators[] = {
TPS65086_REGULATOR("BUCK1", "buck1", BUCK1, 0x80, TPS65086_BUCK1CTRL,
BUCK_VID_MASK, TPS65086_BUCK123CTRL, BIT(0),
tps65086_buck126_10mv_ranges, TPS65086_BUCK1CTRL,
tps65086_10mv_ranges, TPS65086_BUCK1CTRL,
BIT(0)),
TPS65086_REGULATOR("BUCK2", "buck2", BUCK2, 0x80, TPS65086_BUCK2CTRL,
BUCK_VID_MASK, TPS65086_BUCK123CTRL, BIT(1),
tps65086_buck126_10mv_ranges, TPS65086_BUCK2CTRL,
tps65086_10mv_ranges, TPS65086_BUCK2CTRL,
BIT(0)),
TPS65086_REGULATOR("BUCK3", "buck3", BUCK3, 0x80, TPS65086_BUCK3VID,
BUCK_VID_MASK, TPS65086_BUCK123CTRL, BIT(2),
tps65086_buck345_ranges, TPS65086_BUCK3DECAY,
tps65086_10mv_ranges, TPS65086_BUCK3DECAY,
BIT(0)),
TPS65086_REGULATOR("BUCK4", "buck4", BUCK4, 0x80, TPS65086_BUCK4VID,
BUCK_VID_MASK, TPS65086_BUCK4CTRL, BIT(0),
tps65086_buck345_ranges, TPS65086_BUCK4VID,
tps65086_10mv_ranges, TPS65086_BUCK4VID,
BIT(0)),
TPS65086_REGULATOR("BUCK5", "buck5", BUCK5, 0x80, TPS65086_BUCK5VID,
BUCK_VID_MASK, TPS65086_BUCK5CTRL, BIT(0),
tps65086_buck345_ranges, TPS65086_BUCK5CTRL,
tps65086_10mv_ranges, TPS65086_BUCK5CTRL,
BIT(0)),
TPS65086_REGULATOR("BUCK6", "buck6", BUCK6, 0x80, TPS65086_BUCK6VID,
BUCK_VID_MASK, TPS65086_BUCK6CTRL, BIT(0),
tps65086_buck126_10mv_ranges, TPS65086_BUCK6CTRL,
tps65086_10mv_ranges, TPS65086_BUCK6CTRL,
BIT(0)),
TPS65086_REGULATOR("LDOA1", "ldoa1", LDOA1, 0xF, TPS65086_LDOA1CTRL,
VDOA1_VID_MASK, TPS65086_LDOA1CTRL, BIT(0),
@ -162,18 +162,6 @@ static struct tps65086_regulator regulators[] = {
TPS65086_SWITCH("VTT", "vtt", VTT, TPS65086_SWVTT_EN, BIT(4)),
};
static inline bool has_25mv_mode(int id)
{
switch (id) {
case BUCK1:
case BUCK2:
case BUCK6:
return true;
default:
return false;
}
}
static int tps65086_of_parse_cb(struct device_node *dev,
const struct regulator_desc *desc,
struct regulator_config *config)
@ -181,12 +169,27 @@ static int tps65086_of_parse_cb(struct device_node *dev,
int ret;
/* Check for 25mV step mode */
if (has_25mv_mode(desc->id) &&
of_property_read_bool(config->of_node, "ti,regulator-step-size-25mv")) {
regulators[desc->id].desc.linear_ranges =
if (of_property_read_bool(config->of_node, "ti,regulator-step-size-25mv")) {
switch (desc->id) {
case BUCK1:
case BUCK2:
case BUCK6:
regulators[desc->id].desc.linear_ranges =
tps65086_buck126_25mv_ranges;
regulators[desc->id].desc.n_linear_ranges =
regulators[desc->id].desc.n_linear_ranges =
ARRAY_SIZE(tps65086_buck126_25mv_ranges);
break;
case BUCK3:
case BUCK4:
case BUCK5:
regulators[desc->id].desc.linear_ranges =
tps65086_buck345_25mv_ranges;
regulators[desc->id].desc.n_linear_ranges =
ARRAY_SIZE(tps65086_buck345_25mv_ranges);
break;
default:
dev_warn(config->dev, "25mV step mode only valid for BUCK regulators\n");
}
}
/* Check for decay mode */

673
drivers/regulator/twl-regulator.c
View File

@ -24,7 +24,7 @@
#include <linux/delay.h>
/*
* The TWL4030/TW5030/TPS659x0/TWL6030 family chips include power management, a
* The TWL4030/TW5030/TPS659x0 family chips include power management, a
* USB OTG transceiver, an RTC, ADC, PWM, and lots more. Some versions
* include an audio codec, battery charger, and more voltage regulators.
* These chips are often used in OMAP-based systems.
@ -48,25 +48,12 @@ struct twlreg_info {
/* State REMAP default configuration */
u8 remap;
/* chip constraints on regulator behavior */
u16 min_mV;
u16 max_mV;
u8 flags;
/* used by regulator core */
struct regulator_desc desc;
/* chip specific features */
unsigned long features;
/*
* optional override functions for voltage set/get
* these are currently only used for SMPS regulators
*/
int (*get_voltage)(void *data);
int (*set_voltage)(void *data, int target_uV);
/* data passed from board for external get/set voltage */
void *data;
};
@ -88,33 +75,6 @@ struct twlreg_info {
#define VREG_STATE 2
#define VREG_VOLTAGE 3
#define VREG_VOLTAGE_SMPS 4
/* TWL6030 Misc register offsets */
#define VREG_BC_ALL 1
#define VREG_BC_REF 2
#define VREG_BC_PROC 3
#define VREG_BC_CLK_RST 4
/* TWL6030 LDO register values for CFG_STATE */
#define TWL6030_CFG_STATE_OFF 0x00
#define TWL6030_CFG_STATE_ON 0x01
#define TWL6030_CFG_STATE_OFF2 0x02
#define TWL6030_CFG_STATE_SLEEP 0x03
#define TWL6030_CFG_STATE_GRP_SHIFT 5
#define TWL6030_CFG_STATE_APP_SHIFT 2
#define TWL6030_CFG_STATE_APP_MASK (0x03 << TWL6030_CFG_STATE_APP_SHIFT)
#define TWL6030_CFG_STATE_APP(v) (((v) & TWL6030_CFG_STATE_APP_MASK) >>\
TWL6030_CFG_STATE_APP_SHIFT)
/* Flags for SMPS Voltage reading */
#define SMPS_OFFSET_EN BIT(0)
#define SMPS_EXTENDED_EN BIT(1)
/* twl6032 SMPS EPROM values */
#define TWL6030_SMPS_OFFSET 0xB0
#define TWL6030_SMPS_MULT 0xB3
#define SMPS_MULTOFFSET_SMPS4 BIT(0)
#define SMPS_MULTOFFSET_VIO BIT(1)
#define SMPS_MULTOFFSET_SMPS3 BIT(6)
static inline int
twlreg_read(struct twlreg_info *info, unsigned slave_subgp, unsigned offset)
@ -168,26 +128,6 @@ static int twl4030reg_is_enabled(struct regulator_dev *rdev)
return state & P1_GRP_4030;
}
static int twl6030reg_is_enabled(struct regulator_dev *rdev)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int grp = 0, val;
if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) {
grp = twlreg_grp(rdev);
if (grp < 0)
return grp;
grp &= P1_GRP_6030;
} else {
grp = 1;
}
val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE);
val = TWL6030_CFG_STATE_APP(val);
return grp && (val == TWL6030_CFG_STATE_ON);
}
#define PB_I2C_BUSY BIT(0)
#define PB_I2C_BWEN BIT(1)
@ -273,23 +213,6 @@ static int twl4030reg_enable(struct regulator_dev *rdev)
return ret;
}
static int twl6030reg_enable(struct regulator_dev *rdev)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int grp = 0;
int ret;
if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS)))
grp = twlreg_grp(rdev);
if (grp < 0)
return grp;
ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE,
grp << TWL6030_CFG_STATE_GRP_SHIFT |
TWL6030_CFG_STATE_ON);
return ret;
}
static int twl4030reg_disable(struct regulator_dev *rdev)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
@ -307,23 +230,6 @@ static int twl4030reg_disable(struct regulator_dev *rdev)
return ret;
}
static int twl6030reg_disable(struct regulator_dev *rdev)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int grp = 0;
int ret;
if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS)))
grp = P1_GRP_6030 | P2_GRP_6030 | P3_GRP_6030;
/* For 6030, set the off state for all grps enabled */
ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE,
(grp) << TWL6030_CFG_STATE_GRP_SHIFT |
TWL6030_CFG_STATE_OFF);
return ret;
}
static int twl4030reg_get_status(struct regulator_dev *rdev)
{
int state = twlreg_grp(rdev);
@ -340,33 +246,6 @@ static int twl4030reg_get_status(struct regulator_dev *rdev)
: REGULATOR_STATUS_STANDBY;
}
static int twl6030reg_get_status(struct regulator_dev *rdev)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int val;
val = twlreg_grp(rdev);
if (val < 0)
return val;
val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE);
switch (TWL6030_CFG_STATE_APP(val)) {
case TWL6030_CFG_STATE_ON:
return REGULATOR_STATUS_NORMAL;
case TWL6030_CFG_STATE_SLEEP:
return REGULATOR_STATUS_STANDBY;
case TWL6030_CFG_STATE_OFF:
case TWL6030_CFG_STATE_OFF2:
default:
break;
}
return REGULATOR_STATUS_OFF;
}
static int twl4030reg_set_mode(struct regulator_dev *rdev, unsigned mode)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
@ -399,36 +278,6 @@ static inline unsigned int twl4030reg_map_mode(unsigned int mode)
}
}
static int twl6030reg_set_mode(struct regulator_dev *rdev, unsigned mode)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int grp = 0;
int val;
if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS)))
grp = twlreg_grp(rdev);
if (grp < 0)
return grp;
/* Compose the state register settings */
val = grp << TWL6030_CFG_STATE_GRP_SHIFT;
/* We can only set the mode through state machine commands... */
switch (mode) {
case REGULATOR_MODE_NORMAL:
val |= TWL6030_CFG_STATE_ON;
break;
case REGULATOR_MODE_STANDBY:
val |= TWL6030_CFG_STATE_SLEEP;
break;
default:
return -EINVAL;
}
return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, val);
}
/*----------------------------------------------------------------------*/
/*
@ -565,12 +414,7 @@ twl4030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
struct twlreg_info *info = rdev_get_drvdata(rdev);
int vsel = DIV_ROUND_UP(min_uV - 600000, 12500);
if (info->set_voltage) {
return info->set_voltage(info->data, min_uV);
} else {
twlreg_write(info, TWL_MODULE_PM_RECEIVER,
VREG_VOLTAGE_SMPS_4030, vsel);
}
twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS_4030, vsel);
return 0;
}
@ -580,9 +424,6 @@ static int twl4030smps_get_voltage(struct regulator_dev *rdev)
struct twlreg_info *info = rdev_get_drvdata(rdev);
int vsel;
if (info->get_voltage)
return info->get_voltage(info->data);
vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER,
VREG_VOLTAGE_SMPS_4030);
@ -594,85 +435,6 @@ static struct regulator_ops twl4030smps_ops = {
.get_voltage = twl4030smps_get_voltage,
};
static int twl6030coresmps_set_voltage(struct regulator_dev *rdev, int min_uV,
int max_uV, unsigned *selector)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
if (info->set_voltage)
return info->set_voltage(info->data, min_uV);
return -ENODEV;
}
static int twl6030coresmps_get_voltage(struct regulator_dev *rdev)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
if (info->get_voltage)
return info->get_voltage(info->data);
return -ENODEV;
}
static struct regulator_ops twl6030coresmps_ops = {
.set_voltage = twl6030coresmps_set_voltage,
.get_voltage = twl6030coresmps_get_voltage,
};
static int twl6030ldo_list_voltage(struct regulator_dev *rdev, unsigned sel)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
switch (sel) {
case 0:
return 0;
case 1 ... 24:
/* Linear mapping from 00000001 to 00011000:
* Absolute voltage value = 1.0 V + 0.1 V × (sel – 00000001)
*/
return (info->min_mV + 100 * (sel - 1)) * 1000;
case 25 ... 30:
return -EINVAL;
case 31:
return 2750000;
default:
return -EINVAL;
}
}
static int
twl6030ldo_set_voltage_sel(struct regulator_dev *rdev, unsigned selector)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE,
selector);
}
static int twl6030ldo_get_voltage_sel(struct regulator_dev *rdev)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE);
return vsel;
}
static struct regulator_ops twl6030ldo_ops = {
.list_voltage = twl6030ldo_list_voltage,
.set_voltage_sel = twl6030ldo_set_voltage_sel,
.get_voltage_sel = twl6030ldo_get_voltage_sel,
.enable = twl6030reg_enable,
.disable = twl6030reg_disable,
.is_enabled = twl6030reg_is_enabled,
.set_mode = twl6030reg_set_mode,
.get_status = twl6030reg_get_status,
};
/*----------------------------------------------------------------------*/
static struct regulator_ops twl4030fixed_ops = {
@ -687,226 +449,8 @@ static struct regulator_ops twl4030fixed_ops = {
.get_status = twl4030reg_get_status,
};
static struct regulator_ops twl6030fixed_ops = {
.list_voltage = regulator_list_voltage_linear,
.enable = twl6030reg_enable,
.disable = twl6030reg_disable,
.is_enabled = twl6030reg_is_enabled,
.set_mode = twl6030reg_set_mode,
.get_status = twl6030reg_get_status,
};
/*
* SMPS status and control
*/
static int twl6030smps_list_voltage(struct regulator_dev *rdev, unsigned index)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int voltage = 0;
switch (info->flags) {
case SMPS_OFFSET_EN:
voltage = 100000;
/* fall through */
case 0:
switch (index) {
case 0:
voltage = 0;
break;
case 58:
voltage = 1350 * 1000;
break;
case 59:
voltage = 1500 * 1000;
break;
case 60:
voltage = 1800 * 1000;
break;
case 61:
voltage = 1900 * 1000;
break;
case 62:
voltage = 2100 * 1000;
break;
default:
voltage += (600000 + (12500 * (index - 1)));
}
break;
case SMPS_EXTENDED_EN:
switch (index) {
case 0:
voltage = 0;
break;
case 58:
voltage = 2084 * 1000;
break;
case 59:
voltage = 2315 * 1000;
break;
case 60:
voltage = 2778 * 1000;
break;
case 61:
voltage = 2932 * 1000;
break;
case 62:
voltage = 3241 * 1000;
break;
default:
voltage = (1852000 + (38600 * (index - 1)));
}
break;
case SMPS_OFFSET_EN | SMPS_EXTENDED_EN:
switch (index) {
case 0:
voltage = 0;
break;
case 58:
voltage = 4167 * 1000;
break;
case 59:
voltage = 2315 * 1000;
break;
case 60:
voltage = 2778 * 1000;
break;
case 61:
voltage = 2932 * 1000;
break;
case 62:
voltage = 3241 * 1000;
break;
default:
voltage = (2161000 + (38600 * (index - 1)));
}
break;
}
return voltage;
}
static int twl6030smps_map_voltage(struct regulator_dev *rdev, int min_uV,
int max_uV)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int vsel = 0;
switch (info->flags) {
case 0:
if (min_uV == 0)
vsel = 0;
else if ((min_uV >= 600000) && (min_uV <= 1300000)) {
vsel = DIV_ROUND_UP(min_uV - 600000, 12500);
vsel++;
}
/* Values 1..57 for vsel are linear and can be calculated
* values 58..62 are non linear.
*/
else if ((min_uV > 1900000) && (min_uV <= 2100000))
vsel = 62;
else if ((min_uV > 1800000) && (min_uV <= 1900000))
vsel = 61;
else if ((min_uV > 1500000) && (min_uV <= 1800000))
vsel = 60;
else if ((min_uV > 1350000) && (min_uV <= 1500000))
vsel = 59;
else if ((min_uV > 1300000) && (min_uV <= 1350000))
vsel = 58;
else
return -EINVAL;
break;
case SMPS_OFFSET_EN:
if (min_uV == 0)
vsel = 0;
else if ((min_uV >= 700000) && (min_uV <= 1420000)) {
vsel = DIV_ROUND_UP(min_uV - 700000, 12500);
vsel++;
}
/* Values 1..57 for vsel are linear and can be calculated
* values 58..62 are non linear.
*/
else if ((min_uV > 1900000) && (min_uV <= 2100000))
vsel = 62;
else if ((min_uV > 1800000) && (min_uV <= 1900000))
vsel = 61;
else if ((min_uV > 1350000) && (min_uV <= 1800000))
vsel = 60;
else if ((min_uV > 1350000) && (min_uV <= 1500000))
vsel = 59;
else if ((min_uV > 1300000) && (min_uV <= 1350000))
vsel = 58;
else
return -EINVAL;
break;
case SMPS_EXTENDED_EN:
if (min_uV == 0) {
vsel = 0;
} else if ((min_uV >= 1852000) && (max_uV <= 4013600)) {
vsel = DIV_ROUND_UP(min_uV - 1852000, 38600);
vsel++;
}
break;
case SMPS_OFFSET_EN|SMPS_EXTENDED_EN:
if (min_uV == 0) {
vsel = 0;
} else if ((min_uV >= 2161000) && (min_uV <= 4321000)) {
vsel = DIV_ROUND_UP(min_uV - 2161000, 38600);
vsel++;
}
break;
}
return vsel;
}
static int twl6030smps_set_voltage_sel(struct regulator_dev *rdev,
unsigned int selector)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS,
selector);
}
static int twl6030smps_get_voltage_sel(struct regulator_dev *rdev)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
return twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS);
}
static struct regulator_ops twlsmps_ops = {
.list_voltage = twl6030smps_list_voltage,
.map_voltage = twl6030smps_map_voltage,
.set_voltage_sel = twl6030smps_set_voltage_sel,
.get_voltage_sel = twl6030smps_get_voltage_sel,
.enable = twl6030reg_enable,
.disable = twl6030reg_disable,
.is_enabled = twl6030reg_is_enabled,
.set_mode = twl6030reg_set_mode,
.get_status = twl6030reg_get_status,
};
/*----------------------------------------------------------------------*/
#define TWL4030_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \
remap_conf) \
TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \
remap_conf, TWL4030, twl4030fixed_ops, \
twl4030reg_map_mode)
#define TWL6030_FIXED_LDO(label, offset, mVolts, turnon_delay) \
TWL_FIXED_LDO(label, offset, mVolts, 0x0, turnon_delay, \
0x0, TWL6030, twl6030fixed_ops, NULL)
#define TWL4030_ADJUSTABLE_LDO(label, offset, num, turnon_delay, remap_conf) \
static const struct twlreg_info TWL4030_INFO_##label = { \
.base = offset, \
@ -942,79 +486,22 @@ static const struct twlreg_info TWL4030_INFO_##label = { \
}, \
}
#define TWL6030_ADJUSTABLE_SMPS(label) \
static const struct twlreg_info TWL6030_INFO_##label = { \
.desc = { \
.name = #label, \
.id = TWL6030_REG_##label, \
.ops = &twl6030coresmps_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
}, \
}
#define TWL6030_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \
static const struct twlreg_info TWL6030_INFO_##label = { \
.base = offset, \
.min_mV = min_mVolts, \
.max_mV = max_mVolts, \
.desc = { \
.name = #label, \
.id = TWL6030_REG_##label, \
.n_voltages = 32, \
.ops = &twl6030ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
}, \
}
#define TWL6032_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \
static const struct twlreg_info TWL6032_INFO_##label = { \
.base = offset, \
.min_mV = min_mVolts, \
.max_mV = max_mVolts, \
.desc = { \
.name = #label, \
.id = TWL6032_REG_##label, \
.n_voltages = 32, \
.ops = &twl6030ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
}, \
}
#define TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, remap_conf, \
family, operations, map_mode) \
#define TWL4030_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \
remap_conf) \
static const struct twlreg_info TWLFIXED_INFO_##label = { \
.base = offset, \
.id = num, \
.min_mV = mVolts, \
.remap = remap_conf, \
.desc = { \
.name = #label, \
.id = family##_REG_##label, \
.id = TWL4030##_REG_##label, \
.n_voltages = 1, \
.ops = &operations, \
.ops = &twl4030fixed_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = mVolts * 1000, \
.enable_time = turnon_delay, \
.of_map_mode = map_mode, \
}, \
}
#define TWL6032_ADJUSTABLE_SMPS(label, offset) \
static const struct twlreg_info TWLSMPS_INFO_##label = { \
.base = offset, \
.min_mV = 600, \
.max_mV = 2100, \
.desc = { \
.name = #label, \
.id = TWL6032_REG_##label, \
.n_voltages = 63, \
.ops = &twlsmps_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.of_map_mode = twl4030reg_map_mode, \
}, \
}
@ -1038,60 +525,11 @@ TWL4030_ADJUSTABLE_LDO(VIO, 0x4b, 14, 1000, 0x08);
TWL4030_ADJUSTABLE_SMPS(VDD1, 0x55, 15, 1000, 0x08);
TWL4030_ADJUSTABLE_SMPS(VDD2, 0x63, 16, 1000, 0x08);
/* VUSBCP is managed *only* by the USB subchip */
/* 6030 REG with base as PMC Slave Misc : 0x0030 */
/* Turnon-delay and remap configuration values for 6030 are not
verified since the specification is not public */
TWL6030_ADJUSTABLE_SMPS(VDD1);
TWL6030_ADJUSTABLE_SMPS(VDD2);
TWL6030_ADJUSTABLE_SMPS(VDD3);
TWL6030_ADJUSTABLE_LDO(VAUX1_6030, 0x54, 1000, 3300);
TWL6030_ADJUSTABLE_LDO(VAUX2_6030, 0x58, 1000, 3300);
TWL6030_ADJUSTABLE_LDO(VAUX3_6030, 0x5c, 1000, 3300);
TWL6030_ADJUSTABLE_LDO(VMMC, 0x68, 1000, 3300);
TWL6030_ADJUSTABLE_LDO(VPP, 0x6c, 1000, 3300);
TWL6030_ADJUSTABLE_LDO(VUSIM, 0x74, 1000, 3300);
/* 6025 are renamed compared to 6030 versions */
TWL6032_ADJUSTABLE_LDO(LDO2, 0x54, 1000, 3300);
TWL6032_ADJUSTABLE_LDO(LDO4, 0x58, 1000, 3300);
TWL6032_ADJUSTABLE_LDO(LDO3, 0x5c, 1000, 3300);
TWL6032_ADJUSTABLE_LDO(LDO5, 0x68, 1000, 3300);
TWL6032_ADJUSTABLE_LDO(LDO1, 0x6c, 1000, 3300);
TWL6032_ADJUSTABLE_LDO(LDO7, 0x74, 1000, 3300);
TWL6032_ADJUSTABLE_LDO(LDO6, 0x60, 1000, 3300);
TWL6032_ADJUSTABLE_LDO(LDOLN, 0x64, 1000, 3300);
TWL6032_ADJUSTABLE_LDO(LDOUSB, 0x70, 1000, 3300);
TWL4030_FIXED_LDO(VINTANA1, 0x3f, 1500, 11, 100, 0x08);
TWL4030_FIXED_LDO(VINTDIG, 0x47, 1500, 13, 100, 0x08);
TWL4030_FIXED_LDO(VUSB1V5, 0x71, 1500, 17, 100, 0x08);
TWL4030_FIXED_LDO(VUSB1V8, 0x74, 1800, 18, 100, 0x08);
TWL4030_FIXED_LDO(VUSB3V1, 0x77, 3100, 19, 150, 0x08);
TWL6030_FIXED_LDO(VANA, 0x50, 2100, 0);
TWL6030_FIXED_LDO(VCXIO, 0x60, 1800, 0);
TWL6030_FIXED_LDO(VDAC, 0x64, 1800, 0);
TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 0);
TWL6030_FIXED_LDO(V1V8, 0x16, 1800, 0);
TWL6030_FIXED_LDO(V2V1, 0x1c, 2100, 0);
TWL6032_ADJUSTABLE_SMPS(SMPS3, 0x34);
TWL6032_ADJUSTABLE_SMPS(SMPS4, 0x10);
TWL6032_ADJUSTABLE_SMPS(VIO, 0x16);
static u8 twl_get_smps_offset(void)
{
u8 value;
twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value,
TWL6030_SMPS_OFFSET);
return value;
}
static u8 twl_get_smps_mult(void)
{
u8 value;
twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value,
TWL6030_SMPS_MULT);
return value;
}
#define TWL_OF_MATCH(comp, family, label) \
{ \
@ -1121,81 +559,37 @@ static const struct of_device_id twl_of_match[] = {
TWL4030_OF_MATCH("ti,twl4030-vio", VIO),
TWL4030_OF_MATCH("ti,twl4030-vdd1", VDD1),
TWL4030_OF_MATCH("ti,twl4030-vdd2", VDD2),
TWL6030_OF_MATCH("ti,twl6030-vdd1", VDD1),
TWL6030_OF_MATCH("ti,twl6030-vdd2", VDD2),
TWL6030_OF_MATCH("ti,twl6030-vdd3", VDD3),
TWL6030_OF_MATCH("ti,twl6030-vaux1", VAUX1_6030),
TWL6030_OF_MATCH("ti,twl6030-vaux2", VAUX2_6030),
TWL6030_OF_MATCH("ti,twl6030-vaux3", VAUX3_6030),
TWL6030_OF_MATCH("ti,twl6030-vmmc", VMMC),
TWL6030_OF_MATCH("ti,twl6030-vpp", VPP),
TWL6030_OF_MATCH("ti,twl6030-vusim", VUSIM),
TWL6032_OF_MATCH("ti,twl6032-ldo2", LDO2),
TWL6032_OF_MATCH("ti,twl6032-ldo4", LDO4),
TWL6032_OF_MATCH("ti,twl6032-ldo3", LDO3),
TWL6032_OF_MATCH("ti,twl6032-ldo5", LDO5),
TWL6032_OF_MATCH("ti,twl6032-ldo1", LDO1),
TWL6032_OF_MATCH("ti,twl6032-ldo7", LDO7),
TWL6032_OF_MATCH("ti,twl6032-ldo6", LDO6),
TWL6032_OF_MATCH("ti,twl6032-ldoln", LDOLN),
TWL6032_OF_MATCH("ti,twl6032-ldousb", LDOUSB),
TWLFIXED_OF_MATCH("ti,twl4030-vintana1", VINTANA1),
TWLFIXED_OF_MATCH("ti,twl4030-vintdig", VINTDIG),
TWLFIXED_OF_MATCH("ti,twl4030-vusb1v5", VUSB1V5),
TWLFIXED_OF_MATCH("ti,twl4030-vusb1v8", VUSB1V8),
TWLFIXED_OF_MATCH("ti,twl4030-vusb3v1", VUSB3V1),
TWLFIXED_OF_MATCH("ti,twl6030-vana", VANA),
TWLFIXED_OF_MATCH("ti,twl6030-vcxio", VCXIO),
TWLFIXED_OF_MATCH("ti,twl6030-vdac", VDAC),
TWLFIXED_OF_MATCH("ti,twl6030-vusb", VUSB),
TWLFIXED_OF_MATCH("ti,twl6030-v1v8", V1V8),
TWLFIXED_OF_MATCH("ti,twl6030-v2v1", V2V1),
TWLSMPS_OF_MATCH("ti,twl6032-smps3", SMPS3),
TWLSMPS_OF_MATCH("ti,twl6032-smps4", SMPS4),
TWLSMPS_OF_MATCH("ti,twl6032-vio", VIO),
{},
};
MODULE_DEVICE_TABLE(of, twl_of_match);
static int twlreg_probe(struct platform_device *pdev)
{
int i, id;
int id;
struct twlreg_info *info;
const struct twlreg_info *template;
struct regulator_init_data *initdata;
struct regulation_constraints *c;
struct regulator_dev *rdev;
struct twl_regulator_driver_data *drvdata;
const struct of_device_id *match;
struct regulator_config config = { };
match = of_match_device(twl_of_match, &pdev->dev);
if (match) {
template = match->data;
id = template->desc.id;
initdata = of_get_regulator_init_data(&pdev->dev,
pdev->dev.of_node,
&template->desc);
drvdata = NULL;
} else {
id = pdev->id;
initdata = dev_get_platdata(&pdev->dev);
for (i = 0, template = NULL; i < ARRAY_SIZE(twl_of_match); i++) {
template = twl_of_match[i].data;
if (template && template->desc.id == id)
break;
}
if (i == ARRAY_SIZE(twl_of_match))
return -ENODEV;
drvdata = initdata->driver_data;
if (!drvdata)
return -EINVAL;
}
if (!match)
return -ENODEV;
template = match->data;
if (!template)
return -ENODEV;
id = template->desc.id;
initdata = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node,
&template->desc);
if (!initdata)
return -EINVAL;
@ -1203,14 +597,6 @@ static int twlreg_probe(struct platform_device *pdev)
if (!info)
return -ENOMEM;
if (drvdata) {
/* copy the driver data into regulator data */
info->features = drvdata->features;
info->data = drvdata->data;
info->set_voltage = drvdata->set_voltage;
info->get_voltage = drvdata->get_voltage;
}
/* Constrain board-specific capabilities according to what
* this driver and the chip itself can actually do.
*/
@ -1233,27 +619,6 @@ static int twlreg_probe(struct platform_device *pdev)
break;
}
switch (id) {
case TWL6032_REG_SMPS3:
if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS3)
info->flags |= SMPS_EXTENDED_EN;
if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS3)
info->flags |= SMPS_OFFSET_EN;
break;
case TWL6032_REG_SMPS4:
if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS4)
info->flags |= SMPS_EXTENDED_EN;
if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS4)
info->flags |= SMPS_OFFSET_EN;
break;
case TWL6032_REG_VIO:
if (twl_get_smps_mult() & SMPS_MULTOFFSET_VIO)
info->flags |= SMPS_EXTENDED_EN;
if (twl_get_smps_offset() & SMPS_MULTOFFSET_VIO)
info->flags |= SMPS_OFFSET_EN;
break;
}
config.dev = &pdev->dev;
config.init_data = initdata;
config.driver_data = info;
@ -1267,9 +632,7 @@ static int twlreg_probe(struct platform_device *pdev)
}
platform_set_drvdata(pdev, rdev);
if (twl_class_is_4030())
twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_REMAP,
info->remap);
twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_REMAP, info->remap);
/* NOTE: many regulators support short-circuit IRQs (presentable
* as REGULATOR_OVER_CURRENT notifications?) configured via:
@ -1282,7 +645,7 @@ static int twlreg_probe(struct platform_device *pdev)
return 0;
}
MODULE_ALIAS("platform:twl_reg");
MODULE_ALIAS("platform:twl4030_reg");
static struct platform_driver twlreg_driver = {
.probe = twlreg_probe,
@ -1290,7 +653,7 @@ static struct platform_driver twlreg_driver = {
* "twl_regulator.12" (and friends) to "twl_regulator.1".
*/
.driver = {
.name = "twl_reg",
.name = "twl4030_reg",
.of_match_table = of_match_ptr(twl_of_match),
},
};
@ -1307,5 +670,5 @@ static void __exit twlreg_exit(void)
}
module_exit(twlreg_exit)
MODULE_DESCRIPTION("TWL regulator driver");
MODULE_DESCRIPTION("TWL4030 regulator driver");
MODULE_LICENSE("GPL");

793
drivers/regulator/twl6030-regulator.c Normal file
View File

@ -0,0 +1,793 @@
/*
* Split TWL6030 logic from twl-regulator.c:
* Copyright (C) 2008 David Brownell
*
* Copyright (C) 2016 Nicolae Rosia <nicolae.rosia@gmail.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/string.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/i2c/twl.h>
#include <linux/delay.h>
struct twlreg_info {
/* start of regulator's PM_RECEIVER control register bank */
u8 base;
/* twl resource ID, for resource control state machine */
u8 id;
/* chip constraints on regulator behavior */
u16 min_mV;
u8 flags;
/* used by regulator core */
struct regulator_desc desc;
/* chip specific features */
unsigned long features;
/* data passed from board for external get/set voltage */
void *data;
};
/* LDO control registers ... offset is from the base of its register bank.
* The first three registers of all power resource banks help hardware to
* manage the various resource groups.
*/
/* Common offset in TWL4030/6030 */
#define VREG_GRP 0
/* TWL6030 register offsets */
#define VREG_TRANS 1
#define VREG_STATE 2
#define VREG_VOLTAGE 3
#define VREG_VOLTAGE_SMPS 4
/* TWL6030 Misc register offsets */
#define VREG_BC_ALL 1
#define VREG_BC_REF 2
#define VREG_BC_PROC 3
#define VREG_BC_CLK_RST 4
/* TWL6030 LDO register values for CFG_STATE */
#define TWL6030_CFG_STATE_OFF 0x00
#define TWL6030_CFG_STATE_ON 0x01
#define TWL6030_CFG_STATE_OFF2 0x02
#define TWL6030_CFG_STATE_SLEEP 0x03
#define TWL6030_CFG_STATE_GRP_SHIFT 5
#define TWL6030_CFG_STATE_APP_SHIFT 2
#define TWL6030_CFG_STATE_APP_MASK (0x03 << TWL6030_CFG_STATE_APP_SHIFT)
#define TWL6030_CFG_STATE_APP(v) (((v) & TWL6030_CFG_STATE_APP_MASK) >>\
TWL6030_CFG_STATE_APP_SHIFT)
/* Flags for SMPS Voltage reading */
#define SMPS_OFFSET_EN BIT(0)
#define SMPS_EXTENDED_EN BIT(1)
/* twl6032 SMPS EPROM values */
#define TWL6030_SMPS_OFFSET 0xB0
#define TWL6030_SMPS_MULT 0xB3
#define SMPS_MULTOFFSET_SMPS4 BIT(0)
#define SMPS_MULTOFFSET_VIO BIT(1)
#define SMPS_MULTOFFSET_SMPS3 BIT(6)
static inline int
twlreg_read(struct twlreg_info *info, unsigned slave_subgp, unsigned offset)
{
u8 value;
int status;
status = twl_i2c_read_u8(slave_subgp,
&value, info->base + offset);
return (status < 0) ? status : value;
}
static inline int
twlreg_write(struct twlreg_info *info, unsigned slave_subgp, unsigned offset,
u8 value)
{
return twl_i2c_write_u8(slave_subgp,
value, info->base + offset);
}
/* generic power resource operations, which work on all regulators */
static int twlreg_grp(struct regulator_dev *rdev)
{
return twlreg_read(rdev_get_drvdata(rdev), TWL_MODULE_PM_RECEIVER,
VREG_GRP);
}
/*
* Enable/disable regulators by joining/leaving the P1 (processor) group.
* We assume nobody else is updating the DEV_GRP registers.
*/
/* definition for 6030 family */
#define P3_GRP_6030 BIT(2) /* secondary processor, modem, etc */
#define P2_GRP_6030 BIT(1) /* "peripherals" */
#define P1_GRP_6030 BIT(0) /* CPU/Linux */
static int twl6030reg_is_enabled(struct regulator_dev *rdev)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int grp = 0, val;
if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS))) {
grp = twlreg_grp(rdev);
if (grp < 0)
return grp;
grp &= P1_GRP_6030;
} else {
grp = 1;
}
val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE);
val = TWL6030_CFG_STATE_APP(val);
return grp && (val == TWL6030_CFG_STATE_ON);
}
#define PB_I2C_BUSY BIT(0)
#define PB_I2C_BWEN BIT(1)
static int twl6030reg_enable(struct regulator_dev *rdev)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int grp = 0;
int ret;
if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS)))
grp = twlreg_grp(rdev);
if (grp < 0)
return grp;
ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE,
grp << TWL6030_CFG_STATE_GRP_SHIFT |
TWL6030_CFG_STATE_ON);
return ret;
}
static int twl6030reg_disable(struct regulator_dev *rdev)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int grp = 0;
int ret;
if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS)))
grp = P1_GRP_6030 | P2_GRP_6030 | P3_GRP_6030;
/* For 6030, set the off state for all grps enabled */
ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE,
(grp) << TWL6030_CFG_STATE_GRP_SHIFT |
TWL6030_CFG_STATE_OFF);
return ret;
}
static int twl6030reg_get_status(struct regulator_dev *rdev)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int val;
val = twlreg_grp(rdev);
if (val < 0)
return val;
val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE);
switch (TWL6030_CFG_STATE_APP(val)) {
case TWL6030_CFG_STATE_ON:
return REGULATOR_STATUS_NORMAL;
case TWL6030_CFG_STATE_SLEEP:
return REGULATOR_STATUS_STANDBY;
case TWL6030_CFG_STATE_OFF:
case TWL6030_CFG_STATE_OFF2:
default:
break;
}
return REGULATOR_STATUS_OFF;
}
static int twl6030reg_set_mode(struct regulator_dev *rdev, unsigned mode)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int grp = 0;
int val;
if (!(twl_class_is_6030() && (info->features & TWL6032_SUBCLASS)))
grp = twlreg_grp(rdev);
if (grp < 0)
return grp;
/* Compose the state register settings */
val = grp << TWL6030_CFG_STATE_GRP_SHIFT;
/* We can only set the mode through state machine commands... */
switch (mode) {
case REGULATOR_MODE_NORMAL:
val |= TWL6030_CFG_STATE_ON;
break;
case REGULATOR_MODE_STANDBY:
val |= TWL6030_CFG_STATE_SLEEP;
break;
default:
return -EINVAL;
}
return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, val);
}
static int twl6030coresmps_set_voltage(struct regulator_dev *rdev, int min_uV,
int max_uV, unsigned *selector)
{
return -ENODEV;
}
static int twl6030coresmps_get_voltage(struct regulator_dev *rdev)
{
return -ENODEV;
}
static struct regulator_ops twl6030coresmps_ops = {
.set_voltage = twl6030coresmps_set_voltage,
.get_voltage = twl6030coresmps_get_voltage,
};
static int twl6030ldo_list_voltage(struct regulator_dev *rdev, unsigned sel)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
switch (sel) {
case 0:
return 0;
case 1 ... 24:
/* Linear mapping from 00000001 to 00011000:
* Absolute voltage value = 1.0 V + 0.1 V × (sel – 00000001)
*/
return (info->min_mV + 100 * (sel - 1)) * 1000;
case 25 ... 30:
return -EINVAL;
case 31:
return 2750000;
default:
return -EINVAL;
}
}
static int
twl6030ldo_set_voltage_sel(struct regulator_dev *rdev, unsigned selector)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE,
selector);
}
static int twl6030ldo_get_voltage_sel(struct regulator_dev *rdev)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE);
return vsel;
}
static struct regulator_ops twl6030ldo_ops = {
.list_voltage = twl6030ldo_list_voltage,
.set_voltage_sel = twl6030ldo_set_voltage_sel,
.get_voltage_sel = twl6030ldo_get_voltage_sel,
.enable = twl6030reg_enable,
.disable = twl6030reg_disable,
.is_enabled = twl6030reg_is_enabled,
.set_mode = twl6030reg_set_mode,
.get_status = twl6030reg_get_status,
};
static struct regulator_ops twl6030fixed_ops = {
.list_voltage = regulator_list_voltage_linear,
.enable = twl6030reg_enable,
.disable = twl6030reg_disable,
.is_enabled = twl6030reg_is_enabled,
.set_mode = twl6030reg_set_mode,
.get_status = twl6030reg_get_status,
};
/*
* SMPS status and control
*/
static int twl6030smps_list_voltage(struct regulator_dev *rdev, unsigned index)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int voltage = 0;
switch (info->flags) {
case SMPS_OFFSET_EN:
voltage = 100000;
/* fall through */
case 0:
switch (index) {
case 0:
voltage = 0;
break;
case 58:
voltage = 1350 * 1000;
break;
case 59:
voltage = 1500 * 1000;
break;
case 60:
voltage = 1800 * 1000;
break;
case 61:
voltage = 1900 * 1000;
break;
case 62:
voltage = 2100 * 1000;
break;
default:
voltage += (600000 + (12500 * (index - 1)));
}
break;
case SMPS_EXTENDED_EN:
switch (index) {
case 0:
voltage = 0;
break;
case 58:
voltage = 2084 * 1000;
break;
case 59:
voltage = 2315 * 1000;
break;
case 60:
voltage = 2778 * 1000;
break;
case 61:
voltage = 2932 * 1000;
break;
case 62:
voltage = 3241 * 1000;
break;
default:
voltage = (1852000 + (38600 * (index - 1)));
}
break;
case SMPS_OFFSET_EN | SMPS_EXTENDED_EN:
switch (index) {
case 0:
voltage = 0;
break;
case 58:
voltage = 4167 * 1000;
break;
case 59:
voltage = 2315 * 1000;
break;
case 60:
voltage = 2778 * 1000;
break;
case 61:
voltage = 2932 * 1000;
break;
case 62:
voltage = 3241 * 1000;
break;
default:
voltage = (2161000 + (38600 * (index - 1)));
}
break;
}
return voltage;
}
static int twl6030smps_map_voltage(struct regulator_dev *rdev, int min_uV,
int max_uV)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
int vsel = 0;
switch (info->flags) {
case 0:
if (min_uV == 0)
vsel = 0;
else if ((min_uV >= 600000) && (min_uV <= 1300000)) {
vsel = DIV_ROUND_UP(min_uV - 600000, 12500);
vsel++;
}
/* Values 1..57 for vsel are linear and can be calculated
* values 58..62 are non linear.
*/
else if ((min_uV > 1900000) && (min_uV <= 2100000))
vsel = 62;
else if ((min_uV > 1800000) && (min_uV <= 1900000))
vsel = 61;
else if ((min_uV > 1500000) && (min_uV <= 1800000))
vsel = 60;
else if ((min_uV > 1350000) && (min_uV <= 1500000))
vsel = 59;
else if ((min_uV > 1300000) && (min_uV <= 1350000))
vsel = 58;
else
return -EINVAL;
break;
case SMPS_OFFSET_EN:
if (min_uV == 0)
vsel = 0;
else if ((min_uV >= 700000) && (min_uV <= 1420000)) {
vsel = DIV_ROUND_UP(min_uV - 700000, 12500);
vsel++;
}
/* Values 1..57 for vsel are linear and can be calculated
* values 58..62 are non linear.
*/
else if ((min_uV > 1900000) && (min_uV <= 2100000))
vsel = 62;
else if ((min_uV > 1800000) && (min_uV <= 1900000))
vsel = 61;
else if ((min_uV > 1350000) && (min_uV <= 1800000))
vsel = 60;
else if ((min_uV > 1350000) && (min_uV <= 1500000))
vsel = 59;
else if ((min_uV > 1300000) && (min_uV <= 1350000))
vsel = 58;
else
return -EINVAL;
break;
case SMPS_EXTENDED_EN:
if (min_uV == 0) {
vsel = 0;
} else if ((min_uV >= 1852000) && (max_uV <= 4013600)) {
vsel = DIV_ROUND_UP(min_uV - 1852000, 38600);
vsel++;
}
break;
case SMPS_OFFSET_EN|SMPS_EXTENDED_EN:
if (min_uV == 0) {
vsel = 0;
} else if ((min_uV >= 2161000) && (min_uV <= 4321000)) {
vsel = DIV_ROUND_UP(min_uV - 2161000, 38600);
vsel++;
}
break;
}
return vsel;
}
static int twl6030smps_set_voltage_sel(struct regulator_dev *rdev,
unsigned int selector)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS,
selector);
}
static int twl6030smps_get_voltage_sel(struct regulator_dev *rdev)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
return twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS);
}
static struct regulator_ops twlsmps_ops = {
.list_voltage = twl6030smps_list_voltage,
.map_voltage = twl6030smps_map_voltage,
.set_voltage_sel = twl6030smps_set_voltage_sel,
.get_voltage_sel = twl6030smps_get_voltage_sel,
.enable = twl6030reg_enable,
.disable = twl6030reg_disable,
.is_enabled = twl6030reg_is_enabled,
.set_mode = twl6030reg_set_mode,
.get_status = twl6030reg_get_status,
};
/*----------------------------------------------------------------------*/
#define TWL6030_ADJUSTABLE_SMPS(label) \
static const struct twlreg_info TWL6030_INFO_##label = { \
.desc = { \
.name = #label, \
.id = TWL6030_REG_##label, \
.ops = &twl6030coresmps_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
}, \
}
#define TWL6030_ADJUSTABLE_LDO(label, offset, min_mVolts) \
static const struct twlreg_info TWL6030_INFO_##label = { \
.base = offset, \
.min_mV = min_mVolts, \
.desc = { \
.name = #label, \
.id = TWL6030_REG_##label, \
.n_voltages = 32, \
.ops = &twl6030ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
}, \
}
#define TWL6032_ADJUSTABLE_LDO(label, offset, min_mVolts) \
static const struct twlreg_info TWL6032_INFO_##label = { \
.base = offset, \
.min_mV = min_mVolts, \
.desc = { \
.name = #label, \
.id = TWL6032_REG_##label, \
.n_voltages = 32, \
.ops = &twl6030ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
}, \
}
#define TWL6030_FIXED_LDO(label, offset, mVolts, turnon_delay) \
static const struct twlreg_info TWLFIXED_INFO_##label = { \
.base = offset, \
.id = 0, \
.min_mV = mVolts, \
.desc = { \
.name = #label, \
.id = TWL6030##_REG_##label, \
.n_voltages = 1, \
.ops = &twl6030fixed_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = mVolts * 1000, \
.enable_time = turnon_delay, \
.of_map_mode = NULL, \
}, \
}
#define TWL6032_ADJUSTABLE_SMPS(label, offset) \
static const struct twlreg_info TWLSMPS_INFO_##label = { \
.base = offset, \
.min_mV = 600, \
.desc = { \
.name = #label, \
.id = TWL6032_REG_##label, \
.n_voltages = 63, \
.ops = &twlsmps_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
}, \
}
/* VUSBCP is managed *only* by the USB subchip */
/* 6030 REG with base as PMC Slave Misc : 0x0030 */
/* Turnon-delay and remap configuration values for 6030 are not
verified since the specification is not public */
TWL6030_ADJUSTABLE_SMPS(VDD1);
TWL6030_ADJUSTABLE_SMPS(VDD2);
TWL6030_ADJUSTABLE_SMPS(VDD3);
TWL6030_ADJUSTABLE_LDO(VAUX1_6030, 0x54, 1000);
TWL6030_ADJUSTABLE_LDO(VAUX2_6030, 0x58, 1000);
TWL6030_ADJUSTABLE_LDO(VAUX3_6030, 0x5c, 1000);
TWL6030_ADJUSTABLE_LDO(VMMC, 0x68, 1000);
TWL6030_ADJUSTABLE_LDO(VPP, 0x6c, 1000);
TWL6030_ADJUSTABLE_LDO(VUSIM, 0x74, 1000);
/* 6025 are renamed compared to 6030 versions */
TWL6032_ADJUSTABLE_LDO(LDO2, 0x54, 1000);
TWL6032_ADJUSTABLE_LDO(LDO4, 0x58, 1000);
TWL6032_ADJUSTABLE_LDO(LDO3, 0x5c, 1000);
TWL6032_ADJUSTABLE_LDO(LDO5, 0x68, 1000);
TWL6032_ADJUSTABLE_LDO(LDO1, 0x6c, 1000);
TWL6032_ADJUSTABLE_LDO(LDO7, 0x74, 1000);
TWL6032_ADJUSTABLE_LDO(LDO6, 0x60, 1000);
TWL6032_ADJUSTABLE_LDO(LDOLN, 0x64, 1000);
TWL6032_ADJUSTABLE_LDO(LDOUSB, 0x70, 1000);
TWL6030_FIXED_LDO(VANA, 0x50, 2100, 0);
TWL6030_FIXED_LDO(VCXIO, 0x60, 1800, 0);
TWL6030_FIXED_LDO(VDAC, 0x64, 1800, 0);
TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 0);
TWL6030_FIXED_LDO(V1V8, 0x16, 1800, 0);
TWL6030_FIXED_LDO(V2V1, 0x1c, 2100, 0);
TWL6032_ADJUSTABLE_SMPS(SMPS3, 0x34);
TWL6032_ADJUSTABLE_SMPS(SMPS4, 0x10);
TWL6032_ADJUSTABLE_SMPS(VIO, 0x16);
static u8 twl_get_smps_offset(void)
{
u8 value;
twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value,
TWL6030_SMPS_OFFSET);
return value;
}
static u8 twl_get_smps_mult(void)
{
u8 value;
twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value,
TWL6030_SMPS_MULT);
return value;
}
#define TWL_OF_MATCH(comp, family, label) \
{ \
.compatible = comp, \
.data = &family##_INFO_##label, \
}
#define TWL6030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6030, label)
#define TWL6032_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6032, label)
#define TWLFIXED_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLFIXED, label)
#define TWLSMPS_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLSMPS, label)
static const struct of_device_id twl_of_match[] = {
TWL6030_OF_MATCH("ti,twl6030-vdd1", VDD1),
TWL6030_OF_MATCH("ti,twl6030-vdd2", VDD2),
TWL6030_OF_MATCH("ti,twl6030-vdd3", VDD3),
TWL6030_OF_MATCH("ti,twl6030-vaux1", VAUX1_6030),
TWL6030_OF_MATCH("ti,twl6030-vaux2", VAUX2_6030),
TWL6030_OF_MATCH("ti,twl6030-vaux3", VAUX3_6030),
TWL6030_OF_MATCH("ti,twl6030-vmmc", VMMC),
TWL6030_OF_MATCH("ti,twl6030-vpp", VPP),
TWL6030_OF_MATCH("ti,twl6030-vusim", VUSIM),
TWL6032_OF_MATCH("ti,twl6032-ldo2", LDO2),
TWL6032_OF_MATCH("ti,twl6032-ldo4", LDO4),
TWL6032_OF_MATCH("ti,twl6032-ldo3", LDO3),
TWL6032_OF_MATCH("ti,twl6032-ldo5", LDO5),
TWL6032_OF_MATCH("ti,twl6032-ldo1", LDO1),
TWL6032_OF_MATCH("ti,twl6032-ldo7", LDO7),
TWL6032_OF_MATCH("ti,twl6032-ldo6", LDO6),
TWL6032_OF_MATCH("ti,twl6032-ldoln", LDOLN),
TWL6032_OF_MATCH("ti,twl6032-ldousb", LDOUSB),
TWLFIXED_OF_MATCH("ti,twl6030-vana", VANA),
TWLFIXED_OF_MATCH("ti,twl6030-vcxio", VCXIO),
TWLFIXED_OF_MATCH("ti,twl6030-vdac", VDAC),
TWLFIXED_OF_MATCH("ti,twl6030-vusb", VUSB),
TWLFIXED_OF_MATCH("ti,twl6030-v1v8", V1V8),
TWLFIXED_OF_MATCH("ti,twl6030-v2v1", V2V1),
TWLSMPS_OF_MATCH("ti,twl6032-smps3", SMPS3),
TWLSMPS_OF_MATCH("ti,twl6032-smps4", SMPS4),
TWLSMPS_OF_MATCH("ti,twl6032-vio", VIO),
{},
};
MODULE_DEVICE_TABLE(of, twl_of_match);
static int twlreg_probe(struct platform_device *pdev)
{
int id;
struct twlreg_info *info;
const struct twlreg_info *template;
struct regulator_init_data *initdata;
struct regulation_constraints *c;
struct regulator_dev *rdev;
const struct of_device_id *match;
struct regulator_config config = { };
match = of_match_device(twl_of_match, &pdev->dev);
if (!match)
return -ENODEV;
template = match->data;
if (!template)
return -ENODEV;
id = template->desc.id;
initdata = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node,
&template->desc);
if (!initdata)
return -EINVAL;
info = devm_kmemdup(&pdev->dev, template, sizeof(*info), GFP_KERNEL);
if (!info)
return -ENOMEM;
/* Constrain board-specific capabilities according to what
* this driver and the chip itself can actually do.
*/
c = &initdata->constraints;
c->valid_modes_mask &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_STANDBY;
c->valid_ops_mask &= REGULATOR_CHANGE_VOLTAGE
| REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS;
switch (id) {
case TWL6032_REG_SMPS3:
if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS3)
info->flags |= SMPS_EXTENDED_EN;
if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS3)
info->flags |= SMPS_OFFSET_EN;
break;
case TWL6032_REG_SMPS4:
if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS4)
info->flags |= SMPS_EXTENDED_EN;
if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS4)
info->flags |= SMPS_OFFSET_EN;
break;
case TWL6032_REG_VIO:
if (twl_get_smps_mult() & SMPS_MULTOFFSET_VIO)
info->flags |= SMPS_EXTENDED_EN;
if (twl_get_smps_offset() & SMPS_MULTOFFSET_VIO)
info->flags |= SMPS_OFFSET_EN;
break;
}
config.dev = &pdev->dev;
config.init_data = initdata;
config.driver_data = info;
config.of_node = pdev->dev.of_node;
rdev = devm_regulator_register(&pdev->dev, &info->desc, &config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "can't register %s, %ld\n",
info->desc.name, PTR_ERR(rdev));
return PTR_ERR(rdev);
}
platform_set_drvdata(pdev, rdev);
/* NOTE: many regulators support short-circuit IRQs (presentable
* as REGULATOR_OVER_CURRENT notifications?) configured via:
* - SC_CONFIG
* - SC_DETECT1 (vintana2, vmmc1/2, vaux1/2/3/4)
* - SC_DETECT2 (vusb, vdac, vio, vdd1/2, vpll2)
* - IT_CONFIG
*/
return 0;
}
MODULE_ALIAS("platform:twl6030_reg");
static struct platform_driver twlreg_driver = {
.probe = twlreg_probe,
/* NOTE: short name, to work around driver model truncation of
* "twl_regulator.12" (and friends) to "twl_regulator.1".
*/
.driver = {
.name = "twl6030_reg",
.of_match_table = of_match_ptr(twl_of_match),
},
};
static int __init twlreg_init(void)
{
return platform_driver_register(&twlreg_driver);
}
subsys_initcall(twlreg_init);
static void __exit twlreg_exit(void)
{
platform_driver_unregister(&twlreg_driver);
}
module_exit(twlreg_exit)
MODULE_DESCRIPTION("TWL6030 regulator driver");
MODULE_LICENSE("GPL");

2
include/linux/mfd/max77620.h
View File

@ -180,6 +180,7 @@
#define MAX77620_SD_CFG1_FPWM_SD_MASK BIT(2)
#define MAX77620_SD_CFG1_FPWM_SD_SKIP 0
#define MAX77620_SD_CFG1_FPWM_SD_FPWM BIT(2)
#define MAX20024_SD_CFG1_MPOK_MASK BIT(1)
#define MAX77620_SD_CFG1_FSRADE_SD_MASK BIT(0)
#define MAX77620_SD_CFG1_FSRADE_SD_DISABLE 0
#define MAX77620_SD_CFG1_FSRADE_SD_ENABLE BIT(0)
@ -187,6 +188,7 @@
/* LDO_CNFG2 */
#define MAX77620_LDO_POWER_MODE_MASK 0xC0
#define MAX77620_LDO_POWER_MODE_SHIFT 6
#define MAX20024_LDO_CFG2_MPOK_MASK BIT(2)
#define MAX77620_LDO_CFG2_ADE_MASK BIT(1)
#define MAX77620_LDO_CFG2_ADE_DISABLE 0
#define MAX77620_LDO_CFG2_ADE_ENABLE BIT(1)

27
include/linux/regulator/consumer.h
View File

@ -120,6 +120,25 @@ struct regmap;
#define REGULATOR_EVENT_PRE_DISABLE 0x400
#define REGULATOR_EVENT_ABORT_DISABLE 0x800
/*
* Regulator errors that can be queried using regulator_get_error_flags
*
* UNDER_VOLTAGE Regulator output is under voltage.
* OVER_CURRENT Regulator output current is too high.
* REGULATION_OUT Regulator output is out of regulation.
* FAIL Regulator output has failed.
* OVER_TEMP Regulator over temp.
*
* NOTE: These errors can be OR'ed together.
*/
#define REGULATOR_ERROR_UNDER_VOLTAGE BIT(1)
#define REGULATOR_ERROR_OVER_CURRENT BIT(2)
#define REGULATOR_ERROR_REGULATION_OUT BIT(3)
#define REGULATOR_ERROR_FAIL BIT(4)
#define REGULATOR_ERROR_OVER_TEMP BIT(5)
/**
* struct pre_voltage_change_data - Data sent with PRE_VOLTAGE_CHANGE event
*
@ -237,6 +256,8 @@ int regulator_get_current_limit(struct regulator *regulator);
int regulator_set_mode(struct regulator *regulator, unsigned int mode);
unsigned int regulator_get_mode(struct regulator *regulator);
int regulator_get_error_flags(struct regulator *regulator,
unsigned int *flags);
int regulator_set_load(struct regulator *regulator, int load_uA);
int regulator_allow_bypass(struct regulator *regulator, bool allow);
@ -477,6 +498,12 @@ static inline unsigned int regulator_get_mode(struct regulator *regulator)
return REGULATOR_MODE_NORMAL;
}
static inline int regulator_get_error_flags(struct regulator *regulator,
unsigned int *flags)
{
return -EINVAL;
}
static inline int regulator_set_load(struct regulator *regulator, int load_uA)
{
return REGULATOR_MODE_NORMAL;

4
include/linux/regulator/driver.h
View File

@ -100,6 +100,7 @@ struct regulator_linear_range {
*
* @set_mode: Set the configured operating mode for the regulator.
* @get_mode: Get the configured operating mode for the regulator.
* @get_error_flags: Get the current error(s) for the regulator.
* @get_status: Return actual (not as-configured) status of regulator, as a
* REGULATOR_STATUS value (or negative errno)
* @get_optimum_mode: Get the most efficient operating mode for the regulator
@ -169,6 +170,9 @@ struct regulator_ops {
int (*set_mode) (struct regulator_dev *, unsigned int mode);
unsigned int (*get_mode) (struct regulator_dev *);
/* retrieve current error flags on the regulator */
int (*get_error_flags)(struct regulator_dev *, unsigned int *flags);
/* Time taken to enable or set voltage on the regulator */
int (*enable_time) (struct regulator_dev *);
int (*set_ramp_delay) (struct regulator_dev *, int ramp_delay);