linux/drivers/gpio/gpio-wcd934x.c

// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2019, Linaro Limited

#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/gpio/driver.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/slab.h>

#define WCD_PIN_MASK(p) …
#define WCD_REG_DIR_CTL_OFFSET …
#define WCD_REG_VAL_CTL_OFFSET …
#define WCD934X_NPINS …

struct wcd_gpio_data { … };

static int wcd_gpio_get_direction(struct gpio_chip *chip, unsigned int pin)
{ … }

static int wcd_gpio_direction_input(struct gpio_chip *chip, unsigned int pin)
{ … }

static int wcd_gpio_direction_output(struct gpio_chip *chip, unsigned int pin,
				     int val)
{ … }

static int wcd_gpio_get(struct gpio_chip *chip, unsigned int pin)
{ … }

static void wcd_gpio_set(struct gpio_chip *chip, unsigned int pin, int val)
{ … }

static int wcd_gpio_probe(struct platform_device *pdev)
{ … }

static const struct of_device_id wcd_gpio_of_match[] = …;
MODULE_DEVICE_TABLE(of, wcd_gpio_of_match);

static struct platform_driver wcd_gpio_driver = …;

module_platform_driver(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;