mirror of
https://github.com/adulau/aha.git
synced 2024-12-28 03:36:19 +00:00
regulator: PCF50633 pmic driver
Changes from V1: - Removed support for suspend_enable & suspend_disable functions. Signed-off-by: Balaji Rao <balajirrao@openmoko.org> Cc: Andy Green <andy@openmoko.com> Cc: Liam Girdwood <lrg@slimlogic.co.uk> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
This commit is contained in:
Balaji Rao
Samuel Ortiz
parent
1851b06ac4
commit
5ec271e745
4 changed files with 404 additions and 0 deletions
|
|
@ -73,4 +73,11 @@ config REGULATOR_DA903X
|
|||
Say y here to support the BUCKs and LDOs regulators found on
|
||||
Dialog Semiconductor DA9030/DA9034 PMIC.
|
||||
|
||||
config REGULATOR_PCF50633
|
||||
tristate "PCF50633 regulator driver"
|
||||
depends on MFD_PCF50633
|
||||
help
|
||||
Say Y here to support the voltage regulators and convertors
|
||||
on PCF50633
|
||||
|
||||
endif
|
||||
|
|
|
|||
|
|
@ -11,5 +11,6 @@ obj-$(CONFIG_REGULATOR_BQ24022) += bq24022.o
|
|||
obj-$(CONFIG_REGULATOR_WM8350) += wm8350-regulator.o
|
||||
obj-$(CONFIG_REGULATOR_WM8400) += wm8400-regulator.o
|
||||
obj-$(CONFIG_REGULATOR_DA903X) += da903x.o
|
||||
obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o
|
||||
|
||||
ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG
|
||||
|
|
|
|||
329
drivers/regulator/pcf50633-regulator.c
Normal file
329
drivers/regulator/pcf50633-regulator.c
Normal file
|
|
@ -0,0 +1,329 @@
|
|||
/* NXP PCF50633 PMIC Driver
|
||||
*
|
||||
* (C) 2006-2008 by Openmoko, Inc.
|
||||
* Author: Balaji Rao <balajirrao@openmoko.org>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Broken down from monstrous PCF50633 driver mainly by
|
||||
* Harald Welte and Andy Green and Werner Almesberger
|
||||
*
|
||||
* 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/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/device.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/platform_device.h>
|
||||
|
||||
#include <linux/mfd/pcf50633/core.h>
|
||||
#include <linux/mfd/pcf50633/pmic.h>
|
||||
|
||||
#define PCF50633_REGULATOR(_name, _id) \
|
||||
{ \
|
||||
.name = _name, \
|
||||
.id = _id, \
|
||||
.ops = &pcf50633_regulator_ops, \
|
||||
.type = REGULATOR_VOLTAGE, \
|
||||
.owner = THIS_MODULE, \
|
||||
}
|
||||
|
||||
static const u8 pcf50633_regulator_registers[PCF50633_NUM_REGULATORS] = {
|
||||
[PCF50633_REGULATOR_AUTO] = PCF50633_REG_AUTOOUT,
|
||||
[PCF50633_REGULATOR_DOWN1] = PCF50633_REG_DOWN1OUT,
|
||||
[PCF50633_REGULATOR_DOWN2] = PCF50633_REG_DOWN2OUT,
|
||||
[PCF50633_REGULATOR_MEMLDO] = PCF50633_REG_MEMLDOOUT,
|
||||
[PCF50633_REGULATOR_LDO1] = PCF50633_REG_LDO1OUT,
|
||||
[PCF50633_REGULATOR_LDO2] = PCF50633_REG_LDO2OUT,
|
||||
[PCF50633_REGULATOR_LDO3] = PCF50633_REG_LDO3OUT,
|
||||
[PCF50633_REGULATOR_LDO4] = PCF50633_REG_LDO4OUT,
|
||||
[PCF50633_REGULATOR_LDO5] = PCF50633_REG_LDO5OUT,
|
||||
[PCF50633_REGULATOR_LDO6] = PCF50633_REG_LDO6OUT,
|
||||
[PCF50633_REGULATOR_HCLDO] = PCF50633_REG_HCLDOOUT,
|
||||
};
|
||||
|
||||
/* Bits from voltage value */
|
||||
static u8 auto_voltage_bits(unsigned int millivolts)
|
||||
{
|
||||
if (millivolts < 1800)
|
||||
return 0;
|
||||
if (millivolts > 3800)
|
||||
return 0xff;
|
||||
|
||||
millivolts -= 625;
|
||||
|
||||
return millivolts / 25;
|
||||
}
|
||||
|
||||
static u8 down_voltage_bits(unsigned int millivolts)
|
||||
{
|
||||
if (millivolts < 625)
|
||||
return 0;
|
||||
else if (millivolts > 3000)
|
||||
return 0xff;
|
||||
|
||||
millivolts -= 625;
|
||||
|
||||
return millivolts / 25;
|
||||
}
|
||||
|
||||
static u8 ldo_voltage_bits(unsigned int millivolts)
|
||||
{
|
||||
if (millivolts < 900)
|
||||
return 0;
|
||||
else if (millivolts > 3600)
|
||||
return 0x1f;
|
||||
|
||||
millivolts -= 900;
|
||||
return millivolts / 100;
|
||||
}
|
||||
|
||||
/* Obtain voltage value from bits */
|
||||
static unsigned int auto_voltage_value(u8 bits)
|
||||
{
|
||||
if (bits < 0x2f)
|
||||
return 0;
|
||||
|
||||
return 625 + (bits * 25);
|
||||
}
|
||||
|
||||
|
||||
static unsigned int down_voltage_value(u8 bits)
|
||||
{
|
||||
return 625 + (bits * 25);
|
||||
}
|
||||
|
||||
|
||||
static unsigned int ldo_voltage_value(u8 bits)
|
||||
{
|
||||
bits &= 0x1f;
|
||||
|
||||
return 900 + (bits * 100);
|
||||
}
|
||||
|
||||
static int pcf50633_regulator_set_voltage(struct regulator_dev *rdev,
|
||||
int min_uV, int max_uV)
|
||||
{
|
||||
struct pcf50633 *pcf;
|
||||
int regulator_id, millivolts;
|
||||
u8 volt_bits, regnr;
|
||||
|
||||
pcf = rdev_get_drvdata(rdev);
|
||||
|
||||
regulator_id = rdev_get_id(rdev);
|
||||
if (regulator_id >= PCF50633_NUM_REGULATORS)
|
||||
return -EINVAL;
|
||||
|
||||
millivolts = min_uV / 1000;
|
||||
|
||||
regnr = pcf50633_regulator_registers[regulator_id];
|
||||
|
||||
switch (regulator_id) {
|
||||
case PCF50633_REGULATOR_AUTO:
|
||||
volt_bits = auto_voltage_bits(millivolts);
|
||||
break;
|
||||
case PCF50633_REGULATOR_DOWN1:
|
||||
volt_bits = down_voltage_bits(millivolts);
|
||||
break;
|
||||
case PCF50633_REGULATOR_DOWN2:
|
||||
volt_bits = down_voltage_bits(millivolts);
|
||||
break;
|
||||
case PCF50633_REGULATOR_LDO1:
|
||||
case PCF50633_REGULATOR_LDO2:
|
||||
case PCF50633_REGULATOR_LDO3:
|
||||
case PCF50633_REGULATOR_LDO4:
|
||||
case PCF50633_REGULATOR_LDO5:
|
||||
case PCF50633_REGULATOR_LDO6:
|
||||
case PCF50633_REGULATOR_HCLDO:
|
||||
volt_bits = ldo_voltage_bits(millivolts);
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
return pcf50633_reg_write(pcf, regnr, volt_bits);
|
||||
}
|
||||
|
||||
static int pcf50633_regulator_get_voltage(struct regulator_dev *rdev)
|
||||
{
|
||||
struct pcf50633 *pcf;
|
||||
int regulator_id, millivolts, volt_bits;
|
||||
u8 regnr;
|
||||
|
||||
pcf = rdev_get_drvdata(rdev);;
|
||||
|
||||
regulator_id = rdev_get_id(rdev);
|
||||
if (regulator_id >= PCF50633_NUM_REGULATORS)
|
||||
return -EINVAL;
|
||||
|
||||
regnr = pcf50633_regulator_registers[regulator_id];
|
||||
|
||||
volt_bits = pcf50633_reg_read(pcf, regnr);
|
||||
if (volt_bits < 0)
|
||||
return -1;
|
||||
|
||||
switch (regulator_id) {
|
||||
case PCF50633_REGULATOR_AUTO:
|
||||
millivolts = auto_voltage_value(volt_bits);
|
||||
break;
|
||||
case PCF50633_REGULATOR_DOWN1:
|
||||
millivolts = down_voltage_value(volt_bits);
|
||||
break;
|
||||
case PCF50633_REGULATOR_DOWN2:
|
||||
millivolts = down_voltage_value(volt_bits);
|
||||
break;
|
||||
case PCF50633_REGULATOR_LDO1:
|
||||
case PCF50633_REGULATOR_LDO2:
|
||||
case PCF50633_REGULATOR_LDO3:
|
||||
case PCF50633_REGULATOR_LDO4:
|
||||
case PCF50633_REGULATOR_LDO5:
|
||||
case PCF50633_REGULATOR_LDO6:
|
||||
case PCF50633_REGULATOR_HCLDO:
|
||||
millivolts = ldo_voltage_value(volt_bits);
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
return millivolts * 1000;
|
||||
}
|
||||
|
||||
static int pcf50633_regulator_enable(struct regulator_dev *rdev)
|
||||
{
|
||||
struct pcf50633 *pcf = rdev_get_drvdata(rdev);
|
||||
int regulator_id;
|
||||
u8 regnr;
|
||||
|
||||
regulator_id = rdev_get_id(rdev);
|
||||
if (regulator_id >= PCF50633_NUM_REGULATORS)
|
||||
return -EINVAL;
|
||||
|
||||
/* The *ENA register is always one after the *OUT register */
|
||||
regnr = pcf50633_regulator_registers[regulator_id] + 1;
|
||||
|
||||
return pcf50633_reg_set_bit_mask(pcf, regnr, PCF50633_REGULATOR_ON,
|
||||
PCF50633_REGULATOR_ON);
|
||||
}
|
||||
|
||||
static int pcf50633_regulator_disable(struct regulator_dev *rdev)
|
||||
{
|
||||
struct pcf50633 *pcf = rdev_get_drvdata(rdev);
|
||||
int regulator_id;
|
||||
u8 regnr;
|
||||
|
||||
regulator_id = rdev_get_id(rdev);
|
||||
if (regulator_id >= PCF50633_NUM_REGULATORS)
|
||||
return -EINVAL;
|
||||
|
||||
/* the *ENA register is always one after the *OUT register */
|
||||
regnr = pcf50633_regulator_registers[regulator_id] + 1;
|
||||
|
||||
return pcf50633_reg_set_bit_mask(pcf, regnr,
|
||||
PCF50633_REGULATOR_ON, 0);
|
||||
}
|
||||
|
||||
static int pcf50633_regulator_is_enabled(struct regulator_dev *rdev)
|
||||
{
|
||||
struct pcf50633 *pcf = rdev_get_drvdata(rdev);
|
||||
int regulator_id = rdev_get_id(rdev);
|
||||
u8 regnr;
|
||||
|
||||
regulator_id = rdev_get_id(rdev);
|
||||
if (regulator_id >= PCF50633_NUM_REGULATORS)
|
||||
return -EINVAL;
|
||||
|
||||
/* the *ENA register is always one after the *OUT register */
|
||||
regnr = pcf50633_regulator_registers[regulator_id] + 1;
|
||||
|
||||
return pcf50633_reg_read(pcf, regnr) & PCF50633_REGULATOR_ON;
|
||||
}
|
||||
|
||||
static struct regulator_ops pcf50633_regulator_ops = {
|
||||
.set_voltage = pcf50633_regulator_set_voltage,
|
||||
.get_voltage = pcf50633_regulator_get_voltage,
|
||||
.enable = pcf50633_regulator_enable,
|
||||
.disable = pcf50633_regulator_disable,
|
||||
.is_enabled = pcf50633_regulator_is_enabled,
|
||||
};
|
||||
|
||||
static struct regulator_desc regulators[] = {
|
||||
[PCF50633_REGULATOR_AUTO] =
|
||||
PCF50633_REGULATOR("auto", PCF50633_REGULATOR_AUTO),
|
||||
[PCF50633_REGULATOR_DOWN1] =
|
||||
PCF50633_REGULATOR("down1", PCF50633_REGULATOR_DOWN1),
|
||||
[PCF50633_REGULATOR_DOWN2] =
|
||||
PCF50633_REGULATOR("down2", PCF50633_REGULATOR_DOWN2),
|
||||
[PCF50633_REGULATOR_LDO1] =
|
||||
PCF50633_REGULATOR("ldo1", PCF50633_REGULATOR_LDO1),
|
||||
[PCF50633_REGULATOR_LDO2] =
|
||||
PCF50633_REGULATOR("ldo2", PCF50633_REGULATOR_LDO2),
|
||||
[PCF50633_REGULATOR_LDO3] =
|
||||
PCF50633_REGULATOR("ldo3", PCF50633_REGULATOR_LDO3),
|
||||
[PCF50633_REGULATOR_LDO4] =
|
||||
PCF50633_REGULATOR("ldo4", PCF50633_REGULATOR_LDO4),
|
||||
[PCF50633_REGULATOR_LDO5] =
|
||||
PCF50633_REGULATOR("ldo5", PCF50633_REGULATOR_LDO5),
|
||||
[PCF50633_REGULATOR_LDO6] =
|
||||
PCF50633_REGULATOR("ldo6", PCF50633_REGULATOR_LDO6),
|
||||
[PCF50633_REGULATOR_HCLDO] =
|
||||
PCF50633_REGULATOR("hcldo", PCF50633_REGULATOR_HCLDO),
|
||||
[PCF50633_REGULATOR_MEMLDO] =
|
||||
PCF50633_REGULATOR("memldo", PCF50633_REGULATOR_MEMLDO),
|
||||
};
|
||||
|
||||
static int __devinit pcf50633_regulator_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct regulator_dev *rdev;
|
||||
struct pcf50633 *pcf;
|
||||
|
||||
/* Already set by core driver */
|
||||
pcf = platform_get_drvdata(pdev);
|
||||
|
||||
rdev = regulator_register(®ulators[pdev->id], &pdev->dev, pcf);
|
||||
if (IS_ERR(rdev))
|
||||
return PTR_ERR(rdev);
|
||||
|
||||
if (pcf->pdata->regulator_registered)
|
||||
pcf->pdata->regulator_registered(pcf, pdev->id);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __devexit pcf50633_regulator_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct regulator_dev *rdev = platform_get_drvdata(pdev);
|
||||
|
||||
regulator_unregister(rdev);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct platform_driver pcf50633_regulator_driver = {
|
||||
.driver = {
|
||||
.name = "pcf50633-regltr",
|
||||
},
|
||||
.probe = pcf50633_regulator_probe,
|
||||
.remove = __devexit_p(pcf50633_regulator_remove),
|
||||
};
|
||||
|
||||
static int __init pcf50633_regulator_init(void)
|
||||
{
|
||||
return platform_driver_register(&pcf50633_regulator_driver);
|
||||
}
|
||||
module_init(pcf50633_regulator_init);
|
||||
|
||||
static void __exit pcf50633_regulator_exit(void)
|
||||
{
|
||||
platform_driver_unregister(&pcf50633_regulator_driver);
|
||||
}
|
||||
module_exit(pcf50633_regulator_exit);
|
||||
|
||||
MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
|
||||
MODULE_DESCRIPTION("PCF50633 regulator driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_ALIAS("platform:pcf50633-regulator");
|
||||
67
include/linux/mfd/pcf50633/pmic.h
Normal file
67
include/linux/mfd/pcf50633/pmic.h
Normal file
|
|
@ -0,0 +1,67 @@
|
|||
#ifndef __LINUX_MFD_PCF50633_PMIC_H
|
||||
#define __LINUX_MFD_PCF50633_PMIC_H
|
||||
|
||||
#include <linux/mfd/pcf50633/core.h>
|
||||
#include <linux/platform_device.h>
|
||||
|
||||
#define PCF50633_REG_AUTOOUT 0x1a
|
||||
#define PCF50633_REG_AUTOENA 0x1b
|
||||
#define PCF50633_REG_AUTOCTL 0x1c
|
||||
#define PCF50633_REG_AUTOMXC 0x1d
|
||||
#define PCF50633_REG_DOWN1OUT 0x1e
|
||||
#define PCF50633_REG_DOWN1ENA 0x1f
|
||||
#define PCF50633_REG_DOWN1CTL 0x20
|
||||
#define PCF50633_REG_DOWN1MXC 0x21
|
||||
#define PCF50633_REG_DOWN2OUT 0x22
|
||||
#define PCF50633_REG_DOWN2ENA 0x23
|
||||
#define PCF50633_REG_DOWN2CTL 0x24
|
||||
#define PCF50633_REG_DOWN2MXC 0x25
|
||||
#define PCF50633_REG_MEMLDOOUT 0x26
|
||||
#define PCF50633_REG_MEMLDOENA 0x27
|
||||
#define PCF50633_REG_LDO1OUT 0x2d
|
||||
#define PCF50633_REG_LDO1ENA 0x2e
|
||||
#define PCF50633_REG_LDO2OUT 0x2f
|
||||
#define PCF50633_REG_LDO2ENA 0x30
|
||||
#define PCF50633_REG_LDO3OUT 0x31
|
||||
#define PCF50633_REG_LDO3ENA 0x32
|
||||
#define PCF50633_REG_LDO4OUT 0x33
|
||||
#define PCF50633_REG_LDO4ENA 0x34
|
||||
#define PCF50633_REG_LDO5OUT 0x35
|
||||
#define PCF50633_REG_LDO5ENA 0x36
|
||||
#define PCF50633_REG_LDO6OUT 0x37
|
||||
#define PCF50633_REG_LDO6ENA 0x38
|
||||
#define PCF50633_REG_HCLDOOUT 0x39
|
||||
#define PCF50633_REG_HCLDOENA 0x3a
|
||||
#define PCF50633_REG_HCLDOOVL 0x40
|
||||
|
||||
enum pcf50633_regulator_enable {
|
||||
PCF50633_REGULATOR_ON = 0x01,
|
||||
PCF50633_REGULATOR_ON_GPIO1 = 0x02,
|
||||
PCF50633_REGULATOR_ON_GPIO2 = 0x04,
|
||||
PCF50633_REGULATOR_ON_GPIO3 = 0x08,
|
||||
};
|
||||
#define PCF50633_REGULATOR_ON_MASK 0x0f
|
||||
|
||||
enum pcf50633_regulator_phase {
|
||||
PCF50633_REGULATOR_ACTPH1 = 0x00,
|
||||
PCF50633_REGULATOR_ACTPH2 = 0x10,
|
||||
PCF50633_REGULATOR_ACTPH3 = 0x20,
|
||||
PCF50633_REGULATOR_ACTPH4 = 0x30,
|
||||
};
|
||||
#define PCF50633_REGULATOR_ACTPH_MASK 0x30
|
||||
|
||||
enum pcf50633_regulator_id {
|
||||
PCF50633_REGULATOR_AUTO,
|
||||
PCF50633_REGULATOR_DOWN1,
|
||||
PCF50633_REGULATOR_DOWN2,
|
||||
PCF50633_REGULATOR_LDO1,
|
||||
PCF50633_REGULATOR_LDO2,
|
||||
PCF50633_REGULATOR_LDO3,
|
||||
PCF50633_REGULATOR_LDO4,
|
||||
PCF50633_REGULATOR_LDO5,
|
||||
PCF50633_REGULATOR_LDO6,
|
||||
PCF50633_REGULATOR_HCLDO,
|
||||
PCF50633_REGULATOR_MEMLDO,
|
||||
};
|
||||
#endif
|
||||
|
||||
Loading…
Reference in a new issue