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linux/drivers/pinctrl/pinctrl-max77620.c
Mika Westerberg 58957d2edf pinctrl: Widen the generic pinconf argument from 16 to 24 bits 
The current pinconf packed format allows only 16-bit argument limiting
the maximum value 65535. For most types this is enough. However,
debounce time can be in range of hundreths of milliseconds in case of
mechanical switches so we cannot represent the worst case using the
current format.

In order to support larger values change the packed format so that the
lower 8 bits are used as type which leaves 24 bits for the argument.
This allows representing values up to 16777215 and debounce times up to
16 seconds.

We also convert the existing users to use 32-bit integer when extracting
argument from the packed configuration value.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-01-26 15:22:32 +01:00

674 lines
18 KiB
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/*
* MAX77620 pin control driver.
*
* Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
*
* Author:
* Chaitanya Bandi <bandik@nvidia.com>
* Laxman Dewangan <ldewangan@nvidia.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*/
#include <linux/mfd/max77620.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinconf-generic.h>
#include <linux/pinctrl/pinconf.h>
#include <linux/pinctrl/pinmux.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include "core.h"
#include "pinconf.h"
#include "pinctrl-utils.h"
#define MAX77620_PIN_NUM 8
enum max77620_pin_ppdrv {
MAX77620_PIN_UNCONFIG_DRV,
MAX77620_PIN_OD_DRV,
MAX77620_PIN_PP_DRV,
};
enum max77620_pinconf_param {
MAX77620_ACTIVE_FPS_SOURCE = PIN_CONFIG_END + 1,
MAX77620_ACTIVE_FPS_POWER_ON_SLOTS,
MAX77620_ACTIVE_FPS_POWER_DOWN_SLOTS,
MAX77620_SUSPEND_FPS_SOURCE,
MAX77620_SUSPEND_FPS_POWER_ON_SLOTS,
MAX77620_SUSPEND_FPS_POWER_DOWN_SLOTS,
};
struct max77620_pin_function {
const char *name;
const char * const *groups;
unsigned int ngroups;
int mux_option;
};
static const struct pinconf_generic_params max77620_cfg_params[] = {
{
.property = "maxim,active-fps-source",
.param = MAX77620_ACTIVE_FPS_SOURCE,
}, {
.property = "maxim,active-fps-power-up-slot",
.param = MAX77620_ACTIVE_FPS_POWER_ON_SLOTS,
}, {
.property = "maxim,active-fps-power-down-slot",
.param = MAX77620_ACTIVE_FPS_POWER_DOWN_SLOTS,
}, {
.property = "maxim,suspend-fps-source",
.param = MAX77620_SUSPEND_FPS_SOURCE,
}, {
.property = "maxim,suspend-fps-power-up-slot",
.param = MAX77620_SUSPEND_FPS_POWER_ON_SLOTS,
}, {
.property = "maxim,suspend-fps-power-down-slot",
.param = MAX77620_SUSPEND_FPS_POWER_DOWN_SLOTS,
},
};
enum max77620_alternate_pinmux_option {
MAX77620_PINMUX_GPIO = 0,
MAX77620_PINMUX_LOW_POWER_MODE_CONTROL_IN = 1,
MAX77620_PINMUX_FLEXIBLE_POWER_SEQUENCER_OUT = 2,
MAX77620_PINMUX_32K_OUT1 = 3,
MAX77620_PINMUX_SD0_DYNAMIC_VOLTAGE_SCALING_IN = 4,
MAX77620_PINMUX_SD1_DYNAMIC_VOLTAGE_SCALING_IN = 5,
MAX77620_PINMUX_REFERENCE_OUT = 6,
};
struct max77620_pingroup {
const char *name;
const unsigned int pins[1];
unsigned int npins;
enum max77620_alternate_pinmux_option alt_option;
};
struct max77620_pin_info {
enum max77620_pin_ppdrv drv_type;
int pull_config;
};
struct max77620_fps_config {
int active_fps_src;
int active_power_up_slots;
int active_power_down_slots;
int suspend_fps_src;
int suspend_power_up_slots;
int suspend_power_down_slots;
};
struct max77620_pctrl_info {
struct device *dev;
struct pinctrl_dev *pctl;
struct regmap *rmap;
int pins_current_opt[MAX77620_GPIO_NR];
const struct max77620_pin_function *functions;
unsigned int num_functions;
const struct max77620_pingroup *pin_groups;
int num_pin_groups;
const struct pinctrl_pin_desc *pins;
unsigned int num_pins;
struct max77620_pin_info pin_info[MAX77620_PIN_NUM];
struct max77620_fps_config fps_config[MAX77620_PIN_NUM];
};
static const struct pinctrl_pin_desc max77620_pins_desc[] = {
PINCTRL_PIN(MAX77620_GPIO0, "gpio0"),
PINCTRL_PIN(MAX77620_GPIO1, "gpio1"),
PINCTRL_PIN(MAX77620_GPIO2, "gpio2"),
PINCTRL_PIN(MAX77620_GPIO3, "gpio3"),
PINCTRL_PIN(MAX77620_GPIO4, "gpio4"),
PINCTRL_PIN(MAX77620_GPIO5, "gpio5"),
PINCTRL_PIN(MAX77620_GPIO6, "gpio6"),
PINCTRL_PIN(MAX77620_GPIO7, "gpio7"),
};
static const char * const gpio_groups[] = {
"gpio0",
"gpio1",
"gpio2",
"gpio3",
"gpio4",
"gpio5",
"gpio6",
"gpio7",
};
#define FUNCTION_GROUP(fname, mux) \
{ \
.name = fname, \
.groups = gpio_groups, \
.ngroups = ARRAY_SIZE(gpio_groups), \
.mux_option = MAX77620_PINMUX_##mux, \
}
static const struct max77620_pin_function max77620_pin_function[] = {
FUNCTION_GROUP("gpio", GPIO),
FUNCTION_GROUP("lpm-control-in", LOW_POWER_MODE_CONTROL_IN),
FUNCTION_GROUP("fps-out", FLEXIBLE_POWER_SEQUENCER_OUT),
FUNCTION_GROUP("32k-out1", 32K_OUT1),
FUNCTION_GROUP("sd0-dvs-in", SD0_DYNAMIC_VOLTAGE_SCALING_IN),
FUNCTION_GROUP("sd1-dvs-in", SD1_DYNAMIC_VOLTAGE_SCALING_IN),
FUNCTION_GROUP("reference-out", REFERENCE_OUT),
};
#define MAX77620_PINGROUP(pg_name, pin_id, option) \
{ \
.name = #pg_name, \
.pins = {MAX77620_##pin_id}, \
.npins = 1, \
.alt_option = MAX77620_PINMUX_##option, \
}
static const struct max77620_pingroup max77620_pingroups[] = {
MAX77620_PINGROUP(gpio0, GPIO0, LOW_POWER_MODE_CONTROL_IN),
MAX77620_PINGROUP(gpio1, GPIO1, FLEXIBLE_POWER_SEQUENCER_OUT),
MAX77620_PINGROUP(gpio2, GPIO2, FLEXIBLE_POWER_SEQUENCER_OUT),
MAX77620_PINGROUP(gpio3, GPIO3, FLEXIBLE_POWER_SEQUENCER_OUT),
MAX77620_PINGROUP(gpio4, GPIO4, 32K_OUT1),
MAX77620_PINGROUP(gpio5, GPIO5, SD0_DYNAMIC_VOLTAGE_SCALING_IN),
MAX77620_PINGROUP(gpio6, GPIO6, SD1_DYNAMIC_VOLTAGE_SCALING_IN),
MAX77620_PINGROUP(gpio7, GPIO7, REFERENCE_OUT),
};
static int max77620_pinctrl_get_groups_count(struct pinctrl_dev *pctldev)
{
struct max77620_pctrl_info *mpci = pinctrl_dev_get_drvdata(pctldev);
return mpci->num_pin_groups;
}
static const char *max77620_pinctrl_get_group_name(
struct pinctrl_dev *pctldev, unsigned int group)
{
struct max77620_pctrl_info *mpci = pinctrl_dev_get_drvdata(pctldev);
return mpci->pin_groups[group].name;
}
static int max77620_pinctrl_get_group_pins(
struct pinctrl_dev *pctldev, unsigned int group,
const unsigned int **pins, unsigned int *num_pins)
{
struct max77620_pctrl_info *mpci = pinctrl_dev_get_drvdata(pctldev);
*pins = mpci->pin_groups[group].pins;
*num_pins = mpci->pin_groups[group].npins;
return 0;
}
static const struct pinctrl_ops max77620_pinctrl_ops = {
.get_groups_count = max77620_pinctrl_get_groups_count,
.get_group_name = max77620_pinctrl_get_group_name,
.get_group_pins = max77620_pinctrl_get_group_pins,
.dt_node_to_map = pinconf_generic_dt_node_to_map_pin,
.dt_free_map = pinctrl_utils_free_map,
};
static int max77620_pinctrl_get_funcs_count(struct pinctrl_dev *pctldev)
{
struct max77620_pctrl_info *mpci = pinctrl_dev_get_drvdata(pctldev);
return mpci->num_functions;
}
static const char *max77620_pinctrl_get_func_name(struct pinctrl_dev *pctldev,
unsigned int function)
{
struct max77620_pctrl_info *mpci = pinctrl_dev_get_drvdata(pctldev);
return mpci->functions[function].name;
}
static int max77620_pinctrl_get_func_groups(struct pinctrl_dev *pctldev,
unsigned int function,
const char * const **groups,
unsigned int * const num_groups)
{
struct max77620_pctrl_info *mpci = pinctrl_dev_get_drvdata(pctldev);
*groups = mpci->functions[function].groups;
*num_groups = mpci->functions[function].ngroups;
return 0;
}
static int max77620_pinctrl_enable(struct pinctrl_dev *pctldev,
unsigned int function, unsigned int group)
{
struct max77620_pctrl_info *mpci = pinctrl_dev_get_drvdata(pctldev);
u8 val;
int ret;
if (function == MAX77620_PINMUX_GPIO) {
val = 0;
} else if (function == mpci->pin_groups[group].alt_option) {
val = 1 << group;
} else {
dev_err(mpci->dev, "GPIO %u doesn't have function %u\n",
group, function);
return -EINVAL;
}
ret = regmap_update_bits(mpci->rmap, MAX77620_REG_AME_GPIO,
BIT(group), val);
if (ret < 0)
dev_err(mpci->dev, "REG AME GPIO update failed: %d\n", ret);
return ret;
}
static const struct pinmux_ops max77620_pinmux_ops = {
.get_functions_count = max77620_pinctrl_get_funcs_count,
.get_function_name = max77620_pinctrl_get_func_name,
.get_function_groups = max77620_pinctrl_get_func_groups,
.set_mux = max77620_pinctrl_enable,
};
static int max77620_pinconf_get(struct pinctrl_dev *pctldev,
unsigned int pin, unsigned long *config)
{
struct max77620_pctrl_info *mpci = pinctrl_dev_get_drvdata(pctldev);
struct device *dev = mpci->dev;
enum pin_config_param param = pinconf_to_config_param(*config);
unsigned int val;
int arg = 0;
int ret;
switch (param) {
case PIN_CONFIG_DRIVE_OPEN_DRAIN:
if (mpci->pin_info[pin].drv_type == MAX77620_PIN_OD_DRV)
arg = 1;
break;
case PIN_CONFIG_DRIVE_PUSH_PULL:
if (mpci->pin_info[pin].drv_type == MAX77620_PIN_PP_DRV)
arg = 1;
break;
case PIN_CONFIG_BIAS_PULL_UP:
ret = regmap_read(mpci->rmap, MAX77620_REG_PUE_GPIO, &val);
if (ret < 0) {
dev_err(dev, "Reg PUE_GPIO read failed: %d\n", ret);
return ret;
}
if (val & BIT(pin))
arg = 1;
break;
case PIN_CONFIG_BIAS_PULL_DOWN:
ret = regmap_read(mpci->rmap, MAX77620_REG_PDE_GPIO, &val);
if (ret < 0) {
dev_err(dev, "Reg PDE_GPIO read failed: %d\n", ret);
return ret;
}
if (val & BIT(pin))
arg = 1;
break;
default:
dev_err(dev, "Properties not supported\n");
return -ENOTSUPP;
}
*config = pinconf_to_config_packed(param, (u16)arg);
return 0;
}
static int max77620_get_default_fps(struct max77620_pctrl_info *mpci,
int addr, int *fps)
{
unsigned int val;
int ret;
ret = regmap_read(mpci->rmap, addr, &val);
if (ret < 0) {
dev_err(mpci->dev, "Reg PUE_GPIO read failed: %d\n", ret);
return ret;
}
*fps = (val & MAX77620_FPS_SRC_MASK) >> MAX77620_FPS_SRC_SHIFT;
return 0;
}
static int max77620_set_fps_param(struct max77620_pctrl_info *mpci,
int pin, int param)
{
struct max77620_fps_config *fps_config = &mpci->fps_config[pin];
int addr, ret;
int param_val;
int mask, shift;
if ((pin < MAX77620_GPIO1) || (pin > MAX77620_GPIO3))
return 0;
addr = MAX77620_REG_FPS_GPIO1 + pin - 1;
switch (param) {
case MAX77620_ACTIVE_FPS_SOURCE:
case MAX77620_SUSPEND_FPS_SOURCE:
mask = MAX77620_FPS_SRC_MASK;
shift = MAX77620_FPS_SRC_SHIFT;
param_val = fps_config->active_fps_src;
if (param == MAX77620_SUSPEND_FPS_SOURCE)
param_val = fps_config->suspend_fps_src;
break;
case MAX77620_ACTIVE_FPS_POWER_ON_SLOTS:
case MAX77620_SUSPEND_FPS_POWER_ON_SLOTS:
mask = MAX77620_FPS_PU_PERIOD_MASK;
shift = MAX77620_FPS_PU_PERIOD_SHIFT;
param_val = fps_config->active_power_up_slots;
if (param == MAX77620_SUSPEND_FPS_POWER_ON_SLOTS)
param_val = fps_config->suspend_power_up_slots;
break;
case MAX77620_ACTIVE_FPS_POWER_DOWN_SLOTS:
case MAX77620_SUSPEND_FPS_POWER_DOWN_SLOTS:
mask = MAX77620_FPS_PD_PERIOD_MASK;
shift = MAX77620_FPS_PD_PERIOD_SHIFT;
param_val = fps_config->active_power_down_slots;
if (param == MAX77620_SUSPEND_FPS_POWER_DOWN_SLOTS)
param_val = fps_config->suspend_power_down_slots;
break;
default:
dev_err(mpci->dev, "Invalid parameter %d for pin %d\n",
param, pin);
return -EINVAL;
}
if (param_val < 0)
return 0;
ret = regmap_update_bits(mpci->rmap, addr, mask, param_val << shift);
if (ret < 0)
dev_err(mpci->dev, "Reg 0x%02x update failed %d\n", addr, ret);
return ret;
}
static int max77620_pinconf_set(struct pinctrl_dev *pctldev,
unsigned int pin, unsigned long *configs,
unsigned int num_configs)
{
struct max77620_pctrl_info *mpci = pinctrl_dev_get_drvdata(pctldev);
struct device *dev = mpci->dev;
struct max77620_fps_config *fps_config;
int param;
u32 param_val;
unsigned int val;
unsigned int pu_val;
unsigned int pd_val;
int addr, ret;
int i;
for (i = 0; i < num_configs; i++) {
param = pinconf_to_config_param(configs[i]);
param_val = pinconf_to_config_argument(configs[i]);
switch (param) {
case PIN_CONFIG_DRIVE_OPEN_DRAIN:
val = param_val ? 0 : 1;
ret = regmap_update_bits(mpci->rmap,
MAX77620_REG_GPIO0 + pin,
MAX77620_CNFG_GPIO_DRV_MASK,
val);
if (ret < 0) {
dev_err(dev, "Reg 0x%02x update failed %d\n",
MAX77620_REG_GPIO0 + pin, ret);
return ret;
}
mpci->pin_info[pin].drv_type = val ?
MAX77620_PIN_PP_DRV : MAX77620_PIN_OD_DRV;
break;
case PIN_CONFIG_DRIVE_PUSH_PULL:
val = param_val ? 1 : 0;
ret = regmap_update_bits(mpci->rmap,
MAX77620_REG_GPIO0 + pin,
MAX77620_CNFG_GPIO_DRV_MASK,
val);
if (ret < 0) {
dev_err(dev, "Reg 0x%02x update failed %d\n",
MAX77620_REG_GPIO0 + pin, ret);
return ret;
}
mpci->pin_info[pin].drv_type = val ?
MAX77620_PIN_PP_DRV : MAX77620_PIN_OD_DRV;
break;
case MAX77620_ACTIVE_FPS_SOURCE:
case MAX77620_ACTIVE_FPS_POWER_ON_SLOTS:
case MAX77620_ACTIVE_FPS_POWER_DOWN_SLOTS:
if ((pin < MAX77620_GPIO1) || (pin > MAX77620_GPIO3))
return -EINVAL;
fps_config = &mpci->fps_config[pin];
if ((param == MAX77620_ACTIVE_FPS_SOURCE) &&
(param_val == MAX77620_FPS_SRC_DEF)) {
addr = MAX77620_REG_FPS_GPIO1 + pin - 1;
ret = max77620_get_default_fps(
mpci, addr,
&fps_config->active_fps_src);
if (ret < 0)
return ret;
break;
}
if (param == MAX77620_ACTIVE_FPS_SOURCE)
fps_config->active_fps_src = param_val;
else if (param == MAX77620_ACTIVE_FPS_POWER_ON_SLOTS)
fps_config->active_power_up_slots = param_val;
else
fps_config->active_power_down_slots = param_val;
ret = max77620_set_fps_param(mpci, pin, param);
if (ret < 0)
return ret;
break;
case MAX77620_SUSPEND_FPS_SOURCE:
case MAX77620_SUSPEND_FPS_POWER_ON_SLOTS:
case MAX77620_SUSPEND_FPS_POWER_DOWN_SLOTS:
if ((pin < MAX77620_GPIO1) || (pin > MAX77620_GPIO3))
return -EINVAL;
fps_config = &mpci->fps_config[pin];
if ((param == MAX77620_SUSPEND_FPS_SOURCE) &&
(param_val == MAX77620_FPS_SRC_DEF)) {
addr = MAX77620_REG_FPS_GPIO1 + pin - 1;
ret = max77620_get_default_fps(
mpci, addr,
&fps_config->suspend_fps_src);
if (ret < 0)
return ret;
break;
}
if (param == MAX77620_SUSPEND_FPS_SOURCE)
fps_config->suspend_fps_src = param_val;
else if (param == MAX77620_SUSPEND_FPS_POWER_ON_SLOTS)
fps_config->suspend_power_up_slots = param_val;
else
fps_config->suspend_power_down_slots =
param_val;
break;
case PIN_CONFIG_BIAS_PULL_UP:
case PIN_CONFIG_BIAS_PULL_DOWN:
pu_val = (param == PIN_CONFIG_BIAS_PULL_UP) ?
BIT(pin) : 0;
pd_val = (param == PIN_CONFIG_BIAS_PULL_DOWN) ?
BIT(pin) : 0;
ret = regmap_update_bits(mpci->rmap,
MAX77620_REG_PUE_GPIO,
BIT(pin), pu_val);
if (ret < 0) {
dev_err(dev, "PUE_GPIO update failed: %d\n",
ret);
return ret;
}
ret = regmap_update_bits(mpci->rmap,
MAX77620_REG_PDE_GPIO,
BIT(pin), pd_val);
if (ret < 0) {
dev_err(dev, "PDE_GPIO update failed: %d\n",
ret);
return ret;
}
break;
default:
dev_err(dev, "Properties not supported\n");
return -ENOTSUPP;
}
}
return 0;
}
static const struct pinconf_ops max77620_pinconf_ops = {
.pin_config_get = max77620_pinconf_get,
.pin_config_set = max77620_pinconf_set,
};
static struct pinctrl_desc max77620_pinctrl_desc = {
.pctlops = &max77620_pinctrl_ops,
.pmxops = &max77620_pinmux_ops,
.confops = &max77620_pinconf_ops,
};
static int max77620_pinctrl_probe(struct platform_device *pdev)
{
struct max77620_chip *max77620 = dev_get_drvdata(pdev->dev.parent);
struct max77620_pctrl_info *mpci;
int i;
mpci = devm_kzalloc(&pdev->dev, sizeof(*mpci), GFP_KERNEL);
if (!mpci)
return -ENOMEM;
mpci->dev = &pdev->dev;
mpci->dev->of_node = pdev->dev.parent->of_node;
mpci->rmap = max77620->rmap;
mpci->pins = max77620_pins_desc;
mpci->num_pins = ARRAY_SIZE(max77620_pins_desc);
mpci->functions = max77620_pin_function;
mpci->num_functions = ARRAY_SIZE(max77620_pin_function);
mpci->pin_groups = max77620_pingroups;
mpci->num_pin_groups = ARRAY_SIZE(max77620_pingroups);
platform_set_drvdata(pdev, mpci);
max77620_pinctrl_desc.name = dev_name(&pdev->dev);
max77620_pinctrl_desc.pins = max77620_pins_desc;
max77620_pinctrl_desc.npins = ARRAY_SIZE(max77620_pins_desc);
max77620_pinctrl_desc.num_custom_params =
ARRAY_SIZE(max77620_cfg_params);
max77620_pinctrl_desc.custom_params = max77620_cfg_params;
for (i = 0; i < MAX77620_PIN_NUM; ++i) {
mpci->fps_config[i].active_fps_src = -1;
mpci->fps_config[i].active_power_up_slots = -1;
mpci->fps_config[i].active_power_down_slots = -1;
mpci->fps_config[i].suspend_fps_src = -1;
mpci->fps_config[i].suspend_power_up_slots = -1;
mpci->fps_config[i].suspend_power_down_slots = -1;
}
mpci->pctl = devm_pinctrl_register(&pdev->dev, &max77620_pinctrl_desc,
mpci);
if (IS_ERR(mpci->pctl)) {
dev_err(&pdev->dev, "Couldn't register pinctrl driver\n");
return PTR_ERR(mpci->pctl);
}
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int max77620_suspend_fps_param[] = {
MAX77620_SUSPEND_FPS_SOURCE,
MAX77620_SUSPEND_FPS_POWER_ON_SLOTS,
MAX77620_SUSPEND_FPS_POWER_DOWN_SLOTS,
};
static int max77620_active_fps_param[] = {
MAX77620_ACTIVE_FPS_SOURCE,
MAX77620_ACTIVE_FPS_POWER_ON_SLOTS,
MAX77620_ACTIVE_FPS_POWER_DOWN_SLOTS,
};
static int max77620_pinctrl_suspend(struct device *dev)
{
struct max77620_pctrl_info *mpci = dev_get_drvdata(dev);
int pin, p;
for (pin = 0; pin < MAX77620_PIN_NUM; ++pin) {
if ((pin < MAX77620_GPIO1) || (pin > MAX77620_GPIO3))
continue;
for (p = 0; p < 3; ++p)
max77620_set_fps_param(
mpci, pin, max77620_suspend_fps_param[p]);
}
return 0;
};
static int max77620_pinctrl_resume(struct device *dev)
{
struct max77620_pctrl_info *mpci = dev_get_drvdata(dev);
int pin, p;
for (pin = 0; pin < MAX77620_PIN_NUM; ++pin) {
if ((pin < MAX77620_GPIO1) || (pin > MAX77620_GPIO3))
continue;
for (p = 0; p < 3; ++p)
max77620_set_fps_param(
mpci, pin, max77620_active_fps_param[p]);
}
return 0;
}
#endif
static const struct dev_pm_ops max77620_pinctrl_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(
max77620_pinctrl_suspend, max77620_pinctrl_resume)
};
static const struct platform_device_id max77620_pinctrl_devtype[] = {
{ .name = "max77620-pinctrl", },
{ .name = "max20024-pinctrl", },
{},
};
MODULE_DEVICE_TABLE(platform, max77620_pinctrl_devtype);
static struct platform_driver max77620_pinctrl_driver = {
.driver = {
.name = "max77620-pinctrl",
.pm = &max77620_pinctrl_pm_ops,
},
.probe = max77620_pinctrl_probe,
.id_table = max77620_pinctrl_devtype,
};
module_platform_driver(max77620_pinctrl_driver);
MODULE_DESCRIPTION("MAX77620/MAX20024 pin control driver");
MODULE_AUTHOR("Chaitanya Bandi<bandik@nvidia.com>");
MODULE_AUTHOR("Laxman Dewangan<ldewangan@nvidia.com>");
MODULE_ALIAS("platform:max77620-pinctrl");
MODULE_LICENSE("GPL v2");
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