// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Split TWL6030 logic from twl-regulator.c:
* Copyright (C) 2008 David Brownell
*
* Copyright (C) 2016 Nicolae Rosia <nicolae.rosia@gmail.com>
*/
#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/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/mfd/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;
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 VREG_VOLTAGE */
#define TWL6030_VREG_VOLTAGE_WR_S BIT(7 )
/* TWL6030 LDO register values for CFG_STATE */
#define TWL6030_CFG_STATE_OFF 0 x00
#define TWL6030_CFG_STATE_ON 0 x01
#define TWL6030_CFG_STATE_OFF2 0 x02
#define TWL6030_CFG_STATE_SLEEP 0 x03
#define TWL6030_CFG_STATE_GRP_SHIFT 5
#define TWL6030_CFG_STATE_APP_SHIFT 2
#define TWL6030_CFG_STATE_MASK 0 x03
#define TWL6030_CFG_STATE_APP_MASK (0 x03 << 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 and LDO reading*/
#define SMPS_OFFSET_EN BIT(0 )
#define SMPS_EXTENDED_EN BIT(1 )
#define TWL_6030_WARM_RESET BIT(3 )
/* twl6032 SMPS EPROM values */
#define TWL6030_SMPS_OFFSET 0 xB0
#define TWL6030_SMPS_MULT 0 xB3
#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;
val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE);
val = TWL6030_CFG_STATE_APP(val);
} else {
val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE);
val &= TWL6030_CFG_STATE_MASK;
grp = 1 ;
}
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);
if (info->features & TWL6032_SUBCLASS)
val &= TWL6030_CFG_STATE_MASK;
else
val = TWL6030_CFG_STATE_APP(val);
switch (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 const struct regulator_ops twl6030coresmps_ops = {
.set_voltage = twl6030coresmps_set_voltage,
.get_voltage = twl6030coresmps_get_voltage,
};
static int
twl6030ldo_set_voltage_sel(struct regulator_dev *rdev, unsigned selector)
{
struct twlreg_info *info = rdev_get_drvdata(rdev);
if (info->flags & TWL_6030_WARM_RESET)
selector |= TWL6030_VREG_VOLTAGE_WR_S;
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);
if (info->flags & TWL_6030_WARM_RESET)
vsel &= ~TWL6030_VREG_VOLTAGE_WR_S;
return vsel;
}
static const struct regulator_ops twl6030ldo_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.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 const 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 ;
fallthrough;
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 > 1500000 ) && (min_uV <= 1800000 ))
vsel = 60 ;
else if ((min_uV > 1350000 ) && (min_uV <= 1500000 ))
vsel = 59 ;
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 const 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,
};
/*----------------------------------------------------------------------*/
static const struct linear_range twl6030ldo_linear_range[] = {
REGULATOR_LINEAR_RANGE(0 , 0 , 0 , 0 ),
REGULATOR_LINEAR_RANGE(1000000 , 1 , 24 , 100000 ),
REGULATOR_LINEAR_RANGE(2750000 , 31 , 31 , 0 ),
};
#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) \
static const struct twlreg_info TWL6030_INFO_## label = { \
.base = offset, \
.desc = { \
.name = #label , \
.id = TWL6030_REG_## label, \
.n_voltages = 32 , \
.linear_ranges = twl6030ldo_linear_range, \
.n_linear_ranges = ARRAY_SIZE(twl6030ldo_linear_range), \
.ops = &twl6030ldo_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
}, \
}
#define TWL6032_ADJUSTABLE_LDO(label, offset) \
static const struct twlreg_info TWL6032_INFO_## label = { \
.base = offset, \
.features = TWL6032_SUBCLASS, \
.desc = { \
.name = #label , \
.id = TWL6032_REG_## label, \
.n_voltages = 32 , \
.linear_ranges = twl6030ldo_linear_range, \
.n_linear_ranges = ARRAY_SIZE(twl6030ldo_linear_range), \
.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 , \
.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, \
.features = TWL6032_SUBCLASS, \
.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, 0 x54);
TWL6030_ADJUSTABLE_LDO(VAUX2_6030, 0 x58);
TWL6030_ADJUSTABLE_LDO(VAUX3_6030, 0 x5c);
TWL6030_ADJUSTABLE_LDO(VMMC, 0 x68);
TWL6030_ADJUSTABLE_LDO(VPP, 0 x6c);
TWL6030_ADJUSTABLE_LDO(VUSIM, 0 x74);
/* 6025 are renamed compared to 6030 versions */
TWL6032_ADJUSTABLE_LDO(LDO2, 0 x54);
TWL6032_ADJUSTABLE_LDO(LDO4, 0 x58);
TWL6032_ADJUSTABLE_LDO(LDO3, 0 x5c);
TWL6032_ADJUSTABLE_LDO(LDO5, 0 x68);
TWL6032_ADJUSTABLE_LDO(LDO1, 0 x6c);
TWL6032_ADJUSTABLE_LDO(LDO7, 0 x74);
TWL6032_ADJUSTABLE_LDO(LDO6, 0 x60);
TWL6032_ADJUSTABLE_LDO(LDOLN, 0 x64);
TWL6032_ADJUSTABLE_LDO(LDOUSB, 0 x70);
TWL6030_FIXED_LDO(VANA, 0 x50, 2100 , 0 );
TWL6030_FIXED_LDO(VCXIO, 0 x60, 1800 , 0 );
TWL6030_FIXED_LDO(VDAC, 0 x64, 1800 , 0 );
TWL6030_FIXED_LDO(VUSB, 0 x70, 3300 , 0 );
TWL6030_FIXED_LDO(V1V8, 0 x16, 1800 , 0 );
TWL6030_FIXED_LDO(V2V1, 0 x1c, 2100 , 0 );
TWL6032_ADJUSTABLE_SMPS(SMPS3, 0 x34);
TWL6032_ADJUSTABLE_SMPS(SMPS4, 0 x10);
TWL6032_ADJUSTABLE_SMPS(VIO, 0 x16);
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;
struct regulator_config config = { };
struct device_node *np = pdev->dev.of_node;
template = of_device_get_match_data(&pdev->dev);
if (!template )
return -ENODEV;
id = template ->desc.id;
initdata = of_get_regulator_init_data(&pdev->dev, np, &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 ;
}
if (of_property_read_bool(np, "ti,retain-on-reset" ))
info->flags |= TWL_6030_WARM_RESET;
config.dev = &pdev->dev;
config.init_data = initdata;
config.driver_data = info;
config.of_node = np;
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" ,
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.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" );
Messung V0.5 in Prozent C=97 H=98 G=97
¤ Dauer der Verarbeitung: 0.12 Sekunden
(vorverarbeitet am 2026-06-08)
¤
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