mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 20:53:53 +08:00
1586bb4a92
All the drivers that need delay for the regulator voltage output voltage to stabilize after being enabled or after being set to a new value has been converted to implement enable_time and set_voltage_time_sel callbacks. Then regulator core will take care of the necessary delay. This patch removes the unneeded include of linux/delay.h in regulator drivers. Signed-off-by: Axel Lin <axel.lin@ingics.com> Cc: Daniel Jeong <daniel.jeong@ti.com> Cc: Sangbeom Kim <sbkim73@samsung.com> Cc: Chiwoong Byun <woong.byun@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
540 lines
16 KiB
C
540 lines
16 KiB
C
/*
|
|
* max77686.c - Regulator driver for the Maxim 77686
|
|
*
|
|
* Copyright (C) 2012 Samsung Electronics
|
|
* Chiwoong Byun <woong.byun@smasung.com>
|
|
* Jonghwa Lee <jonghwa3.lee@samsung.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.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
* This driver is based on max8997.c
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/bug.h>
|
|
#include <linux/err.h>
|
|
#include <linux/gpio.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/regulator/driver.h>
|
|
#include <linux/regulator/machine.h>
|
|
#include <linux/regulator/of_regulator.h>
|
|
#include <linux/mfd/max77686.h>
|
|
#include <linux/mfd/max77686-private.h>
|
|
|
|
#define MAX77686_LDO_MINUV 800000
|
|
#define MAX77686_LDO_UVSTEP 50000
|
|
#define MAX77686_LDO_LOW_MINUV 800000
|
|
#define MAX77686_LDO_LOW_UVSTEP 25000
|
|
#define MAX77686_BUCK_MINUV 750000
|
|
#define MAX77686_BUCK_UVSTEP 50000
|
|
#define MAX77686_RAMP_DELAY 100000 /* uV/us */
|
|
#define MAX77686_DVS_RAMP_DELAY 27500 /* uV/us */
|
|
#define MAX77686_DVS_MINUV 600000
|
|
#define MAX77686_DVS_UVSTEP 12500
|
|
|
|
#define MAX77686_OPMODE_SHIFT 6
|
|
#define MAX77686_OPMODE_BUCK234_SHIFT 4
|
|
#define MAX77686_OPMODE_MASK 0x3
|
|
|
|
#define MAX77686_VSEL_MASK 0x3F
|
|
#define MAX77686_DVS_VSEL_MASK 0xFF
|
|
|
|
#define MAX77686_RAMP_RATE_MASK 0xC0
|
|
|
|
#define MAX77686_REGULATORS MAX77686_REG_MAX
|
|
#define MAX77686_LDOS 26
|
|
|
|
enum max77686_ramp_rate {
|
|
RAMP_RATE_13P75MV,
|
|
RAMP_RATE_27P5MV,
|
|
RAMP_RATE_55MV,
|
|
RAMP_RATE_NO_CTRL, /* 100mV/us */
|
|
};
|
|
|
|
struct max77686_data {
|
|
struct regulator_dev *rdev[MAX77686_REGULATORS];
|
|
unsigned int opmode[MAX77686_REGULATORS];
|
|
};
|
|
|
|
/* Some BUCKS supports Normal[ON/OFF] mode during suspend */
|
|
static int max77686_buck_set_suspend_disable(struct regulator_dev *rdev)
|
|
{
|
|
unsigned int val;
|
|
struct max77686_data *max77686 = rdev_get_drvdata(rdev);
|
|
int ret, id = rdev_get_id(rdev);
|
|
|
|
if (id == MAX77686_BUCK1)
|
|
val = 0x1;
|
|
else
|
|
val = 0x1 << MAX77686_OPMODE_BUCK234_SHIFT;
|
|
|
|
ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
|
|
rdev->desc->enable_mask, val);
|
|
if (ret)
|
|
return ret;
|
|
|
|
max77686->opmode[id] = val;
|
|
return 0;
|
|
}
|
|
|
|
/* Some LDOs supports [LPM/Normal]ON mode during suspend state */
|
|
static int max77686_set_suspend_mode(struct regulator_dev *rdev,
|
|
unsigned int mode)
|
|
{
|
|
struct max77686_data *max77686 = rdev_get_drvdata(rdev);
|
|
unsigned int val;
|
|
int ret, id = rdev_get_id(rdev);
|
|
|
|
/* BUCK[5-9] doesn't support this feature */
|
|
if (id >= MAX77686_BUCK5)
|
|
return 0;
|
|
|
|
switch (mode) {
|
|
case REGULATOR_MODE_IDLE: /* ON in LP Mode */
|
|
val = 0x2 << MAX77686_OPMODE_SHIFT;
|
|
break;
|
|
case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */
|
|
val = 0x3 << MAX77686_OPMODE_SHIFT;
|
|
break;
|
|
default:
|
|
pr_warn("%s: regulator_suspend_mode : 0x%x not supported\n",
|
|
rdev->desc->name, mode);
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
|
|
rdev->desc->enable_mask, val);
|
|
if (ret)
|
|
return ret;
|
|
|
|
max77686->opmode[id] = val;
|
|
return 0;
|
|
}
|
|
|
|
/* Some LDOs supports LPM-ON/OFF/Normal-ON mode during suspend state */
|
|
static int max77686_ldo_set_suspend_mode(struct regulator_dev *rdev,
|
|
unsigned int mode)
|
|
{
|
|
unsigned int val;
|
|
struct max77686_data *max77686 = rdev_get_drvdata(rdev);
|
|
int ret;
|
|
|
|
switch (mode) {
|
|
case REGULATOR_MODE_STANDBY: /* switch off */
|
|
val = 0x1 << MAX77686_OPMODE_SHIFT;
|
|
break;
|
|
case REGULATOR_MODE_IDLE: /* ON in LP Mode */
|
|
val = 0x2 << MAX77686_OPMODE_SHIFT;
|
|
break;
|
|
case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */
|
|
val = 0x3 << MAX77686_OPMODE_SHIFT;
|
|
break;
|
|
default:
|
|
pr_warn("%s: regulator_suspend_mode : 0x%x not supported\n",
|
|
rdev->desc->name, mode);
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
|
|
rdev->desc->enable_mask, val);
|
|
if (ret)
|
|
return ret;
|
|
|
|
max77686->opmode[rdev_get_id(rdev)] = val;
|
|
return 0;
|
|
}
|
|
|
|
static int max77686_enable(struct regulator_dev *rdev)
|
|
{
|
|
struct max77686_data *max77686 = rdev_get_drvdata(rdev);
|
|
|
|
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
|
|
rdev->desc->enable_mask,
|
|
max77686->opmode[rdev_get_id(rdev)]);
|
|
}
|
|
|
|
static int max77686_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
|
|
{
|
|
unsigned int ramp_value = RAMP_RATE_NO_CTRL;
|
|
|
|
switch (ramp_delay) {
|
|
case 1 ... 13750:
|
|
ramp_value = RAMP_RATE_13P75MV;
|
|
break;
|
|
case 13751 ... 27500:
|
|
ramp_value = RAMP_RATE_27P5MV;
|
|
break;
|
|
case 27501 ... 55000:
|
|
ramp_value = RAMP_RATE_55MV;
|
|
break;
|
|
case 55001 ... 100000:
|
|
break;
|
|
default:
|
|
pr_warn("%s: ramp_delay: %d not supported, setting 100000\n",
|
|
rdev->desc->name, ramp_delay);
|
|
}
|
|
|
|
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
|
|
MAX77686_RAMP_RATE_MASK, ramp_value << 6);
|
|
}
|
|
|
|
static struct regulator_ops max77686_ops = {
|
|
.list_voltage = regulator_list_voltage_linear,
|
|
.map_voltage = regulator_map_voltage_linear,
|
|
.is_enabled = regulator_is_enabled_regmap,
|
|
.enable = max77686_enable,
|
|
.disable = regulator_disable_regmap,
|
|
.get_voltage_sel = regulator_get_voltage_sel_regmap,
|
|
.set_voltage_sel = regulator_set_voltage_sel_regmap,
|
|
.set_voltage_time_sel = regulator_set_voltage_time_sel,
|
|
.set_suspend_mode = max77686_set_suspend_mode,
|
|
};
|
|
|
|
static struct regulator_ops max77686_ldo_ops = {
|
|
.list_voltage = regulator_list_voltage_linear,
|
|
.map_voltage = regulator_map_voltage_linear,
|
|
.is_enabled = regulator_is_enabled_regmap,
|
|
.enable = max77686_enable,
|
|
.disable = regulator_disable_regmap,
|
|
.get_voltage_sel = regulator_get_voltage_sel_regmap,
|
|
.set_voltage_sel = regulator_set_voltage_sel_regmap,
|
|
.set_voltage_time_sel = regulator_set_voltage_time_sel,
|
|
.set_suspend_mode = max77686_ldo_set_suspend_mode,
|
|
};
|
|
|
|
static struct regulator_ops max77686_buck1_ops = {
|
|
.list_voltage = regulator_list_voltage_linear,
|
|
.map_voltage = regulator_map_voltage_linear,
|
|
.is_enabled = regulator_is_enabled_regmap,
|
|
.enable = max77686_enable,
|
|
.disable = regulator_disable_regmap,
|
|
.get_voltage_sel = regulator_get_voltage_sel_regmap,
|
|
.set_voltage_sel = regulator_set_voltage_sel_regmap,
|
|
.set_voltage_time_sel = regulator_set_voltage_time_sel,
|
|
.set_suspend_disable = max77686_buck_set_suspend_disable,
|
|
};
|
|
|
|
static struct regulator_ops max77686_buck_dvs_ops = {
|
|
.list_voltage = regulator_list_voltage_linear,
|
|
.map_voltage = regulator_map_voltage_linear,
|
|
.is_enabled = regulator_is_enabled_regmap,
|
|
.enable = max77686_enable,
|
|
.disable = regulator_disable_regmap,
|
|
.get_voltage_sel = regulator_get_voltage_sel_regmap,
|
|
.set_voltage_sel = regulator_set_voltage_sel_regmap,
|
|
.set_voltage_time_sel = regulator_set_voltage_time_sel,
|
|
.set_ramp_delay = max77686_set_ramp_delay,
|
|
.set_suspend_disable = max77686_buck_set_suspend_disable,
|
|
};
|
|
|
|
#define regulator_desc_ldo(num) { \
|
|
.name = "LDO"#num, \
|
|
.id = MAX77686_LDO##num, \
|
|
.ops = &max77686_ops, \
|
|
.type = REGULATOR_VOLTAGE, \
|
|
.owner = THIS_MODULE, \
|
|
.min_uV = MAX77686_LDO_MINUV, \
|
|
.uV_step = MAX77686_LDO_UVSTEP, \
|
|
.ramp_delay = MAX77686_RAMP_DELAY, \
|
|
.n_voltages = MAX77686_VSEL_MASK + 1, \
|
|
.vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
|
|
.vsel_mask = MAX77686_VSEL_MASK, \
|
|
.enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
|
|
.enable_mask = MAX77686_OPMODE_MASK \
|
|
<< MAX77686_OPMODE_SHIFT, \
|
|
}
|
|
#define regulator_desc_lpm_ldo(num) { \
|
|
.name = "LDO"#num, \
|
|
.id = MAX77686_LDO##num, \
|
|
.ops = &max77686_ldo_ops, \
|
|
.type = REGULATOR_VOLTAGE, \
|
|
.owner = THIS_MODULE, \
|
|
.min_uV = MAX77686_LDO_MINUV, \
|
|
.uV_step = MAX77686_LDO_UVSTEP, \
|
|
.ramp_delay = MAX77686_RAMP_DELAY, \
|
|
.n_voltages = MAX77686_VSEL_MASK + 1, \
|
|
.vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
|
|
.vsel_mask = MAX77686_VSEL_MASK, \
|
|
.enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
|
|
.enable_mask = MAX77686_OPMODE_MASK \
|
|
<< MAX77686_OPMODE_SHIFT, \
|
|
}
|
|
#define regulator_desc_ldo_low(num) { \
|
|
.name = "LDO"#num, \
|
|
.id = MAX77686_LDO##num, \
|
|
.ops = &max77686_ldo_ops, \
|
|
.type = REGULATOR_VOLTAGE, \
|
|
.owner = THIS_MODULE, \
|
|
.min_uV = MAX77686_LDO_LOW_MINUV, \
|
|
.uV_step = MAX77686_LDO_LOW_UVSTEP, \
|
|
.ramp_delay = MAX77686_RAMP_DELAY, \
|
|
.n_voltages = MAX77686_VSEL_MASK + 1, \
|
|
.vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
|
|
.vsel_mask = MAX77686_VSEL_MASK, \
|
|
.enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
|
|
.enable_mask = MAX77686_OPMODE_MASK \
|
|
<< MAX77686_OPMODE_SHIFT, \
|
|
}
|
|
#define regulator_desc_ldo1_low(num) { \
|
|
.name = "LDO"#num, \
|
|
.id = MAX77686_LDO##num, \
|
|
.ops = &max77686_ops, \
|
|
.type = REGULATOR_VOLTAGE, \
|
|
.owner = THIS_MODULE, \
|
|
.min_uV = MAX77686_LDO_LOW_MINUV, \
|
|
.uV_step = MAX77686_LDO_LOW_UVSTEP, \
|
|
.ramp_delay = MAX77686_RAMP_DELAY, \
|
|
.n_voltages = MAX77686_VSEL_MASK + 1, \
|
|
.vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
|
|
.vsel_mask = MAX77686_VSEL_MASK, \
|
|
.enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
|
|
.enable_mask = MAX77686_OPMODE_MASK \
|
|
<< MAX77686_OPMODE_SHIFT, \
|
|
}
|
|
#define regulator_desc_buck(num) { \
|
|
.name = "BUCK"#num, \
|
|
.id = MAX77686_BUCK##num, \
|
|
.ops = &max77686_ops, \
|
|
.type = REGULATOR_VOLTAGE, \
|
|
.owner = THIS_MODULE, \
|
|
.min_uV = MAX77686_BUCK_MINUV, \
|
|
.uV_step = MAX77686_BUCK_UVSTEP, \
|
|
.ramp_delay = MAX77686_RAMP_DELAY, \
|
|
.n_voltages = MAX77686_VSEL_MASK + 1, \
|
|
.vsel_reg = MAX77686_REG_BUCK5OUT + (num - 5) * 2, \
|
|
.vsel_mask = MAX77686_VSEL_MASK, \
|
|
.enable_reg = MAX77686_REG_BUCK5CTRL + (num - 5) * 2, \
|
|
.enable_mask = MAX77686_OPMODE_MASK, \
|
|
}
|
|
#define regulator_desc_buck1(num) { \
|
|
.name = "BUCK"#num, \
|
|
.id = MAX77686_BUCK##num, \
|
|
.ops = &max77686_buck1_ops, \
|
|
.type = REGULATOR_VOLTAGE, \
|
|
.owner = THIS_MODULE, \
|
|
.min_uV = MAX77686_BUCK_MINUV, \
|
|
.uV_step = MAX77686_BUCK_UVSTEP, \
|
|
.ramp_delay = MAX77686_RAMP_DELAY, \
|
|
.n_voltages = MAX77686_VSEL_MASK + 1, \
|
|
.vsel_reg = MAX77686_REG_BUCK1OUT, \
|
|
.vsel_mask = MAX77686_VSEL_MASK, \
|
|
.enable_reg = MAX77686_REG_BUCK1CTRL, \
|
|
.enable_mask = MAX77686_OPMODE_MASK, \
|
|
}
|
|
#define regulator_desc_buck_dvs(num) { \
|
|
.name = "BUCK"#num, \
|
|
.id = MAX77686_BUCK##num, \
|
|
.ops = &max77686_buck_dvs_ops, \
|
|
.type = REGULATOR_VOLTAGE, \
|
|
.owner = THIS_MODULE, \
|
|
.min_uV = MAX77686_DVS_MINUV, \
|
|
.uV_step = MAX77686_DVS_UVSTEP, \
|
|
.ramp_delay = MAX77686_DVS_RAMP_DELAY, \
|
|
.n_voltages = MAX77686_DVS_VSEL_MASK + 1, \
|
|
.vsel_reg = MAX77686_REG_BUCK2DVS1 + (num - 2) * 10, \
|
|
.vsel_mask = MAX77686_DVS_VSEL_MASK, \
|
|
.enable_reg = MAX77686_REG_BUCK2CTRL1 + (num - 2) * 10, \
|
|
.enable_mask = MAX77686_OPMODE_MASK \
|
|
<< MAX77686_OPMODE_BUCK234_SHIFT, \
|
|
}
|
|
|
|
static struct regulator_desc regulators[] = {
|
|
regulator_desc_ldo1_low(1),
|
|
regulator_desc_ldo_low(2),
|
|
regulator_desc_ldo(3),
|
|
regulator_desc_ldo(4),
|
|
regulator_desc_ldo(5),
|
|
regulator_desc_ldo_low(6),
|
|
regulator_desc_ldo_low(7),
|
|
regulator_desc_ldo_low(8),
|
|
regulator_desc_ldo(9),
|
|
regulator_desc_lpm_ldo(10),
|
|
regulator_desc_lpm_ldo(11),
|
|
regulator_desc_lpm_ldo(12),
|
|
regulator_desc_ldo(13),
|
|
regulator_desc_lpm_ldo(14),
|
|
regulator_desc_ldo_low(15),
|
|
regulator_desc_lpm_ldo(16),
|
|
regulator_desc_ldo(17),
|
|
regulator_desc_ldo(18),
|
|
regulator_desc_ldo(19),
|
|
regulator_desc_ldo(20),
|
|
regulator_desc_ldo(21),
|
|
regulator_desc_ldo(22),
|
|
regulator_desc_ldo(23),
|
|
regulator_desc_ldo(24),
|
|
regulator_desc_ldo(25),
|
|
regulator_desc_ldo(26),
|
|
regulator_desc_buck1(1),
|
|
regulator_desc_buck_dvs(2),
|
|
regulator_desc_buck_dvs(3),
|
|
regulator_desc_buck_dvs(4),
|
|
regulator_desc_buck(5),
|
|
regulator_desc_buck(6),
|
|
regulator_desc_buck(7),
|
|
regulator_desc_buck(8),
|
|
regulator_desc_buck(9),
|
|
};
|
|
|
|
#ifdef CONFIG_OF
|
|
static int max77686_pmic_dt_parse_pdata(struct platform_device *pdev,
|
|
struct max77686_platform_data *pdata)
|
|
{
|
|
struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent);
|
|
struct device_node *pmic_np, *regulators_np;
|
|
struct max77686_regulator_data *rdata;
|
|
struct of_regulator_match rmatch;
|
|
unsigned int i;
|
|
|
|
pmic_np = iodev->dev->of_node;
|
|
regulators_np = of_find_node_by_name(pmic_np, "voltage-regulators");
|
|
if (!regulators_np) {
|
|
dev_err(&pdev->dev, "could not find regulators sub-node\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
pdata->num_regulators = ARRAY_SIZE(regulators);
|
|
rdata = devm_kzalloc(&pdev->dev, sizeof(*rdata) *
|
|
pdata->num_regulators, GFP_KERNEL);
|
|
if (!rdata) {
|
|
dev_err(&pdev->dev,
|
|
"could not allocate memory for regulator data\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
for (i = 0; i < pdata->num_regulators; i++) {
|
|
rmatch.name = regulators[i].name;
|
|
rmatch.init_data = NULL;
|
|
rmatch.of_node = NULL;
|
|
of_regulator_match(&pdev->dev, regulators_np, &rmatch, 1);
|
|
rdata[i].initdata = rmatch.init_data;
|
|
rdata[i].of_node = rmatch.of_node;
|
|
}
|
|
|
|
pdata->regulators = rdata;
|
|
|
|
return 0;
|
|
}
|
|
#else
|
|
static int max77686_pmic_dt_parse_pdata(struct platform_device *pdev,
|
|
struct max77686_platform_data *pdata)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_OF */
|
|
|
|
static int max77686_pmic_probe(struct platform_device *pdev)
|
|
{
|
|
struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent);
|
|
struct max77686_platform_data *pdata = dev_get_platdata(iodev->dev);
|
|
struct max77686_data *max77686;
|
|
int i, ret = 0;
|
|
struct regulator_config config = { };
|
|
|
|
dev_dbg(&pdev->dev, "%s\n", __func__);
|
|
|
|
if (!pdata) {
|
|
dev_err(&pdev->dev, "no platform data found for regulator\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (iodev->dev->of_node) {
|
|
ret = max77686_pmic_dt_parse_pdata(pdev, pdata);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
if (pdata->num_regulators != MAX77686_REGULATORS) {
|
|
dev_err(&pdev->dev,
|
|
"Invalid initial data for regulator's initialiation\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
max77686 = devm_kzalloc(&pdev->dev, sizeof(struct max77686_data),
|
|
GFP_KERNEL);
|
|
if (!max77686)
|
|
return -ENOMEM;
|
|
|
|
config.dev = &pdev->dev;
|
|
config.regmap = iodev->regmap;
|
|
config.driver_data = max77686;
|
|
platform_set_drvdata(pdev, max77686);
|
|
|
|
for (i = 0; i < MAX77686_REGULATORS; i++) {
|
|
config.init_data = pdata->regulators[i].initdata;
|
|
config.of_node = pdata->regulators[i].of_node;
|
|
|
|
max77686->opmode[i] = regulators[i].enable_mask;
|
|
max77686->rdev[i] = regulator_register(®ulators[i], &config);
|
|
if (IS_ERR(max77686->rdev[i])) {
|
|
ret = PTR_ERR(max77686->rdev[i]);
|
|
dev_err(&pdev->dev,
|
|
"regulator init failed for %d\n", i);
|
|
max77686->rdev[i] = NULL;
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
err:
|
|
while (--i >= 0)
|
|
regulator_unregister(max77686->rdev[i]);
|
|
return ret;
|
|
}
|
|
|
|
static int max77686_pmic_remove(struct platform_device *pdev)
|
|
{
|
|
struct max77686_data *max77686 = platform_get_drvdata(pdev);
|
|
int i;
|
|
|
|
for (i = 0; i < MAX77686_REGULATORS; i++)
|
|
regulator_unregister(max77686->rdev[i]);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct platform_device_id max77686_pmic_id[] = {
|
|
{"max77686-pmic", 0},
|
|
{ },
|
|
};
|
|
MODULE_DEVICE_TABLE(platform, max77686_pmic_id);
|
|
|
|
static struct platform_driver max77686_pmic_driver = {
|
|
.driver = {
|
|
.name = "max77686-pmic",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
.probe = max77686_pmic_probe,
|
|
.remove = max77686_pmic_remove,
|
|
.id_table = max77686_pmic_id,
|
|
};
|
|
|
|
static int __init max77686_pmic_init(void)
|
|
{
|
|
return platform_driver_register(&max77686_pmic_driver);
|
|
}
|
|
subsys_initcall(max77686_pmic_init);
|
|
|
|
static void __exit max77686_pmic_cleanup(void)
|
|
{
|
|
platform_driver_unregister(&max77686_pmic_driver);
|
|
}
|
|
module_exit(max77686_pmic_cleanup);
|
|
|
|
MODULE_DESCRIPTION("MAXIM 77686 Regulator Driver");
|
|
MODULE_AUTHOR("Chiwoong Byun <woong.byun@samsung.com>");
|
|
MODULE_LICENSE("GPL");
|