renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-21 03:33:59 +08:00
Code
0feb837a42
linux-next/drivers/regulator/twl6030-regulator.c
Axel Lin 3498c5e15d regulator: twl6030: Remove unused fields from struct twlreg_info 
The table_len, *table, remap and max_mV fields are not used, so remove
them.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-23 15:47:02 +00:00

794 lines
20 KiB
C
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/*
* 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");
View Git Blame Copy Permalink