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OpenCloudOS-Kernel/drivers/regulator/max77802.c

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regulator: Add driver for max77802 PMIC PMIC regulators The MAX77802 PMIC has 10 high-efficiency Buck and 32 Low-dropout (LDO) regulators. This patch adds support for all these regulators found on the MAX77802 PMIC and is based on a driver added by Simon Glass to the Chrome OS kernel 3.8 tree. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Tested-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-18 16:32:41 +08:00
/*
* max77802.c - Regulator driver for the Maxim 77802
*
* Copyright (C) 2013-2014 Google, Inc
* Simon Glass <sjg@chromium.org>
*
* 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.
*
* 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/gpio/consumer.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>
/* Default ramp delay in case it is not manually set */
#define MAX77802_RAMP_DELAY 100000 /* uV/us */
#define MAX77802_OPMODE_SHIFT_LDO 6
#define MAX77802_OPMODE_BUCK234_SHIFT 4
#define MAX77802_OPMODE_MASK 0x3
#define MAX77802_VSEL_MASK 0x3F
#define MAX77802_DVS_VSEL_MASK 0xFF
#define MAX77802_RAMP_RATE_MASK_2BIT 0xC0
#define MAX77802_RAMP_RATE_SHIFT_2BIT 6
#define MAX77802_RAMP_RATE_MASK_4BIT 0xF0
#define MAX77802_RAMP_RATE_SHIFT_4BIT 4
/* MAX77802 has two register formats: 2-bit and 4-bit */
static const unsigned int ramp_table_77802_2bit[] = {
12500,
25000,
50000,
100000,
};
static unsigned int ramp_table_77802_4bit[] = {
1000, 2000, 3030, 4000,
5000, 5880, 7140, 8330,
9090, 10000, 11110, 12500,
16670, 25000, 50000, 100000,
};
struct max77802_regulator_prv {
unsigned int opmode[MAX77802_REG_MAX];
};
static int max77802_get_opmode_shift(int id)
{
if (id == MAX77802_BUCK1 || (id >= MAX77802_BUCK5 &&
id <= MAX77802_BUCK10))
return 0;
if (id >= MAX77802_BUCK2 && id <= MAX77802_BUCK4)
return MAX77802_OPMODE_BUCK234_SHIFT;
if (id >= MAX77802_LDO1 && id <= MAX77802_LDO35)
return MAX77802_OPMODE_SHIFT_LDO;
return -EINVAL;
}
/*
* Some BUCKS supports Normal[ON/OFF] mode during suspend
*
* BUCK 1, 6, 2-4, 5, 7-10 (all)
*
* The other mode (0x02) will make PWRREQ switch between normal
* and low power.
*/
static int max77802_buck_set_suspend_disable(struct regulator_dev *rdev)
{
unsigned int val = MAX77802_OPMODE_STANDBY;
struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
int shift = max77802_get_opmode_shift(id);
max77802->opmode[id] = val;
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask, val << shift);
}
/*
* Some LDOs supports LPM-ON/OFF/Normal-ON mode during suspend state
* (Enable Control Logic1 by PWRREQ)
*
* LDOs 2, 4-19, 22-35.
*
*/
static int max77802_ldo_set_suspend_mode_logic1(struct regulator_dev *rdev,
unsigned int mode)
{
struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
unsigned int val;
int shift = max77802_get_opmode_shift(id);
switch (mode) {
case REGULATOR_MODE_IDLE: /* ON in LP Mode */
val = MAX77802_OPMODE_LP;
break;
case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */
val = MAX77802_OPMODE_NORMAL;
break;
case REGULATOR_MODE_STANDBY: /* ON/OFF by PWRREQ */
val = MAX77802_OPMODE_STANDBY;
break;
default:
dev_warn(&rdev->dev, "%s: regulator mode: 0x%x not supported\n",
rdev->desc->name, mode);
return -EINVAL;
}
regulator: max77802: Remove duplicate rdev_get_id() call Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-05 09:17:41 +08:00
max77802->opmode[id] = val;
regulator: Add driver for max77802 PMIC PMIC regulators The MAX77802 PMIC has 10 high-efficiency Buck and 32 Low-dropout (LDO) regulators. This patch adds support for all these regulators found on the MAX77802 PMIC and is based on a driver added by Simon Glass to the Chrome OS kernel 3.8 tree. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Tested-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-18 16:32:41 +08:00
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask, val << shift);
}
/*
* Mode 1 (Output[ON/OFF] by PWRREQ) is not supported on some LDOs
* (Enable Control Logic2 by PWRREQ)
*
* LDOs 1, 20, 21, and 3,
*
*/
static int max77802_ldo_set_suspend_mode_logic2(struct regulator_dev *rdev,
unsigned int mode)
{
struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
unsigned int val;
int shift = max77802_get_opmode_shift(id);
switch (mode) {
case REGULATOR_MODE_IDLE: /* ON in LP Mode */
val = MAX77802_OPMODE_LP;
break;
case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */
val = MAX77802_OPMODE_NORMAL;
break;
default:
dev_warn(&rdev->dev, "%s: regulator mode: 0x%x not supported\n",
rdev->desc->name, mode);
return -EINVAL;
}
regulator: max77802: Remove duplicate rdev_get_id() call Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-05 09:17:41 +08:00
max77802->opmode[id] = val;
regulator: Add driver for max77802 PMIC PMIC regulators The MAX77802 PMIC has 10 high-efficiency Buck and 32 Low-dropout (LDO) regulators. This patch adds support for all these regulators found on the MAX77802 PMIC and is based on a driver added by Simon Glass to the Chrome OS kernel 3.8 tree. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Tested-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-18 16:32:41 +08:00
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask, val << shift);
}
static int max77802_enable(struct regulator_dev *rdev)
{
struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
int shift = max77802_get_opmode_shift(id);
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask,
max77802->opmode[id] << shift);
}
static int max77802_find_ramp_value(struct regulator_dev *rdev,
const unsigned int limits[], int size,
unsigned int ramp_delay)
{
int i;
for (i = 0; i < size; i++) {
if (ramp_delay <= limits[i])
return i;
}
/* Use maximum value for no ramp control */
dev_warn(&rdev->dev, "%s: ramp_delay: %d not supported, setting 100000\n",
rdev->desc->name, ramp_delay);
return size - 1;
}
/* Used for BUCKs 2-4 */
static int max77802_set_ramp_delay_2bit(struct regulator_dev *rdev,
int ramp_delay)
{
int id = rdev_get_id(rdev);
unsigned int ramp_value;
if (id > MAX77802_BUCK4) {
dev_warn(&rdev->dev,
"%s: regulator: ramp delay not supported\n",
rdev->desc->name);
return -EINVAL;
}
ramp_value = max77802_find_ramp_value(rdev, ramp_table_77802_2bit,
ARRAY_SIZE(ramp_table_77802_2bit), ramp_delay);
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
MAX77802_RAMP_RATE_MASK_2BIT,
ramp_value << MAX77802_RAMP_RATE_SHIFT_2BIT);
}
/* For BUCK1, 6 */
static int max77802_set_ramp_delay_4bit(struct regulator_dev *rdev,
int ramp_delay)
{
unsigned int ramp_value;
ramp_value = max77802_find_ramp_value(rdev, ramp_table_77802_4bit,
ARRAY_SIZE(ramp_table_77802_4bit), ramp_delay);
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
MAX77802_RAMP_RATE_MASK_4BIT,
ramp_value << MAX77802_RAMP_RATE_SHIFT_4BIT);
}
/*
* LDOs 2, 4-19, 22-35
*/
static struct regulator_ops max77802_ldo_ops_logic1 = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.is_enabled = regulator_is_enabled_regmap,
.enable = max77802_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 = max77802_ldo_set_suspend_mode_logic1,
};
/*
* LDOs 1, 20, 21, 3
*/
static struct regulator_ops max77802_ldo_ops_logic2 = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.is_enabled = regulator_is_enabled_regmap,
.enable = max77802_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 = max77802_ldo_set_suspend_mode_logic2,
};
/* BUCKS 1, 6 */
static struct regulator_ops max77802_buck_16_dvs_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.is_enabled = regulator_is_enabled_regmap,
.enable = max77802_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 = max77802_set_ramp_delay_4bit,
.set_suspend_disable = max77802_buck_set_suspend_disable,
};
/* BUCKs 2-4, 5, 7-10 */
static struct regulator_ops max77802_buck_dvs_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.is_enabled = regulator_is_enabled_regmap,
.enable = max77802_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 = max77802_set_ramp_delay_2bit,
.set_suspend_disable = max77802_buck_set_suspend_disable,
};
/* LDOs 3-7, 9-14, 18-26, 28, 29, 32-34 */
#define regulator_77802_desc_p_ldo(num, supply, log) { \
.name = "LDO"#num, \
.id = MAX77802_LDO##num, \
.supply_name = "inl"#supply, \
.ops = &max77802_ldo_ops_logic##log, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = 800000, \
.uV_step = 50000, \
.ramp_delay = MAX77802_RAMP_DELAY, \
.n_voltages = 1 << 6, \
.vsel_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \
.vsel_mask = MAX77802_VSEL_MASK, \
.enable_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \
.enable_mask = MAX77802_OPMODE_MASK << MAX77802_OPMODE_SHIFT_LDO, \
}
/* LDOs 1, 2, 8, 15, 17, 27, 30, 35 */
#define regulator_77802_desc_n_ldo(num, supply, log) { \
.name = "LDO"#num, \
.id = MAX77802_LDO##num, \
.supply_name = "inl"#supply, \
.ops = &max77802_ldo_ops_logic##log, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = 800000, \
.uV_step = 25000, \
.ramp_delay = MAX77802_RAMP_DELAY, \
.n_voltages = 1 << 6, \
.vsel_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \
.vsel_mask = MAX77802_VSEL_MASK, \
.enable_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \
.enable_mask = MAX77802_OPMODE_MASK << MAX77802_OPMODE_SHIFT_LDO, \
}
/* BUCKs 1, 6 */
#define regulator_77802_desc_16_buck(num) { \
.name = "BUCK"#num, \
.id = MAX77802_BUCK##num, \
.supply_name = "inb"#num, \
.ops = &max77802_buck_16_dvs_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = 612500, \
.uV_step = 6250, \
.ramp_delay = MAX77802_RAMP_DELAY, \
.n_voltages = 1 << 8, \
.vsel_reg = MAX77802_REG_BUCK ## num ## DVS1, \
.vsel_mask = MAX77802_DVS_VSEL_MASK, \
.enable_reg = MAX77802_REG_BUCK ## num ## CTRL, \
.enable_mask = MAX77802_OPMODE_MASK, \
}
/* BUCKS 2-4 */
#define regulator_77802_desc_234_buck(num) { \
.name = "BUCK"#num, \
.id = MAX77802_BUCK##num, \
.supply_name = "inb"#num, \
.ops = &max77802_buck_dvs_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = 600000, \
.uV_step = 6250, \
.ramp_delay = MAX77802_RAMP_DELAY, \
.n_voltages = 0x91, \
.vsel_reg = MAX77802_REG_BUCK ## num ## DVS1, \
.vsel_mask = MAX77802_DVS_VSEL_MASK, \
.enable_reg = MAX77802_REG_BUCK ## num ## CTRL1, \
.enable_mask = MAX77802_OPMODE_MASK << \
MAX77802_OPMODE_BUCK234_SHIFT, \
}
/* BUCK 5 */
#define regulator_77802_desc_buck5(num) { \
.name = "BUCK"#num, \
.id = MAX77802_BUCK##num, \
.supply_name = "inb"#num, \
.ops = &max77802_buck_dvs_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = 750000, \
.uV_step = 50000, \
.ramp_delay = MAX77802_RAMP_DELAY, \
.n_voltages = 1 << 6, \
.vsel_reg = MAX77802_REG_BUCK5OUT, \
.vsel_mask = MAX77802_VSEL_MASK, \
.enable_reg = MAX77802_REG_BUCK5CTRL, \
.enable_mask = MAX77802_OPMODE_MASK, \
}
/* BUCKs 7-10 */
#define regulator_77802_desc_buck7_10(num) { \
.name = "BUCK"#num, \
.id = MAX77802_BUCK##num, \
.supply_name = "inb"#num, \
.ops = &max77802_buck_dvs_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = 750000, \
.uV_step = 50000, \
.ramp_delay = MAX77802_RAMP_DELAY, \
.n_voltages = 1 << 6, \
.vsel_reg = MAX77802_REG_BUCK7OUT + (num - 7) * 3, \
.vsel_mask = MAX77802_VSEL_MASK, \
.enable_reg = MAX77802_REG_BUCK7CTRL + (num - 7) * 3, \
.enable_mask = MAX77802_OPMODE_MASK, \
}
static struct regulator_desc regulators[] = {
regulator_77802_desc_16_buck(1),
regulator_77802_desc_234_buck(2),
regulator_77802_desc_234_buck(3),
regulator_77802_desc_234_buck(4),
regulator_77802_desc_buck5(5),
regulator_77802_desc_16_buck(6),
regulator_77802_desc_buck7_10(7),
regulator_77802_desc_buck7_10(8),
regulator_77802_desc_buck7_10(9),
regulator_77802_desc_buck7_10(10),
regulator_77802_desc_n_ldo(1, 10, 2),
regulator_77802_desc_n_ldo(2, 10, 1),
regulator_77802_desc_p_ldo(3, 3, 2),
regulator_77802_desc_p_ldo(4, 6, 1),
regulator_77802_desc_p_ldo(5, 3, 1),
regulator_77802_desc_p_ldo(6, 3, 1),
regulator_77802_desc_p_ldo(7, 3, 1),
regulator_77802_desc_n_ldo(8, 1, 1),
regulator_77802_desc_p_ldo(9, 5, 1),
regulator_77802_desc_p_ldo(10, 4, 1),
regulator_77802_desc_p_ldo(11, 4, 1),
regulator_77802_desc_p_ldo(12, 9, 1),
regulator_77802_desc_p_ldo(13, 4, 1),
regulator_77802_desc_p_ldo(14, 4, 1),
regulator_77802_desc_n_ldo(15, 1, 1),
regulator_77802_desc_n_ldo(17, 2, 1),
regulator_77802_desc_p_ldo(18, 7, 1),
regulator_77802_desc_p_ldo(19, 5, 1),
regulator_77802_desc_p_ldo(20, 7, 2),
regulator_77802_desc_p_ldo(21, 6, 2),
regulator_77802_desc_p_ldo(23, 9, 1),
regulator_77802_desc_p_ldo(24, 6, 1),
regulator_77802_desc_p_ldo(25, 9, 1),
regulator_77802_desc_p_ldo(26, 9, 1),
regulator_77802_desc_n_ldo(27, 2, 1),
regulator_77802_desc_p_ldo(28, 7, 1),
regulator_77802_desc_p_ldo(29, 7, 1),
regulator_77802_desc_n_ldo(30, 2, 1),
regulator_77802_desc_p_ldo(32, 9, 1),
regulator_77802_desc_p_ldo(33, 6, 1),
regulator_77802_desc_p_ldo(34, 9, 1),
regulator_77802_desc_n_ldo(35, 2, 1),
};
#ifdef CONFIG_OF
static int max77802_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_get_child_by_name(pmic_np, "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) {
of_node_put(regulators_np);
return -ENOMEM;
}
for (i = 0; i < pdata->num_regulators; i++) {
rmatch.name = regulators[i].name;
rmatch.init_data = NULL;
rmatch.of_node = NULL;
if (of_regulator_match(&pdev->dev, regulators_np, &rmatch,
1) != 1) {
dev_warn(&pdev->dev, "No matching regulator for '%s'\n",
rmatch.name);
continue;
}
rdata[i].initdata = rmatch.init_data;
rdata[i].of_node = rmatch.of_node;
rdata[i].id = regulators[i].id;
}
pdata->regulators = rdata;
of_node_put(regulators_np);
return 0;
}
#else
static int max77802_pmic_dt_parse_pdata(struct platform_device *pdev,
struct max77686_platform_data *pdata)
{
return 0;
}
#endif /* CONFIG_OF */
static int max77802_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 max77802_regulator_prv *max77802;
int i, ret = 0, val;
struct regulator_config config = { };
/* This is allocated by the MFD driver */
if (!pdata) {
dev_err(&pdev->dev, "no platform data found for regulator\n");
return -ENODEV;
}
max77802 = devm_kzalloc(&pdev->dev,
sizeof(struct max77802_regulator_prv),
GFP_KERNEL);
if (!max77802)
return -ENOMEM;
if (iodev->dev->of_node) {
ret = max77802_pmic_dt_parse_pdata(pdev, pdata);
if (ret)
return ret;
}
config.dev = iodev->dev;
config.regmap = iodev->regmap;
config.driver_data = max77802;
platform_set_drvdata(pdev, max77802);
for (i = 0; i < MAX77802_REG_MAX; i++) {
struct regulator_dev *rdev;
int id = pdata->regulators[i].id;
int shift = max77802_get_opmode_shift(id);
config.init_data = pdata->regulators[i].initdata;
config.of_node = pdata->regulators[i].of_node;
ret = regmap_read(iodev->regmap, regulators[i].enable_reg, &val);
regulator: max77802: set opmode to normal if off is read from hw The max77802 driver reads the default operating mode (opmode) set for regulators when enabled from the hardware registers. But if a regulator is disabled and the system warm restarted, the hardware reports OFF as the opmode so the regulator is not enabled. Default to operating mode NORMAL if OFF is read from the hardware register. Reported-by: Yuvaraj Cd <yuvaraj.lkml@gmail.com> Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by: Doug Anderson <dianders@chromium.org> Tested-by: Yuvaraj Kumar CD <yuvaraj.cd@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-26 19:37:41 +08:00
val = val >> shift & MAX77802_OPMODE_MASK;
/*
* If the regulator is disabled and the system warm rebooted,
* the hardware reports OFF as the regulator operating mode.
* Default to operating mode NORMAL in that case.
*/
if (val == MAX77802_OPMODE_OFF)
max77802->opmode[id] = MAX77802_OPMODE_NORMAL;
else
max77802->opmode[id] = val;
regulator: Add driver for max77802 PMIC PMIC regulators The MAX77802 PMIC has 10 high-efficiency Buck and 32 Low-dropout (LDO) regulators. This patch adds support for all these regulators found on the MAX77802 PMIC and is based on a driver added by Simon Glass to the Chrome OS kernel 3.8 tree. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Tested-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-18 16:32:41 +08:00
rdev = devm_regulator_register(&pdev->dev,
&regulators[i], &config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev,
"regulator init failed for %d\n", i);
return PTR_ERR(rdev);
}
}
return 0;
}
static const struct platform_device_id max77802_pmic_id[] = {
{"max77802-pmic", 0},
{ },
};
MODULE_DEVICE_TABLE(platform, max77802_pmic_id);
static struct platform_driver max77802_pmic_driver = {
.driver = {
.name = "max77802-pmic",
.owner = THIS_MODULE,
},
.probe = max77802_pmic_probe,
.id_table = max77802_pmic_id,
};
module_platform_driver(max77802_pmic_driver);
MODULE_DESCRIPTION("MAXIM 77802 Regulator Driver");
MODULE_AUTHOR("Simon Glass <sjg@chromium.org>");
MODULE_LICENSE("GPL");