linux/drivers/gpio/gpio-imx-scu.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright 2021~2022 NXP
 *
 * The driver exports a standard gpiochip interface
 * to control the PIN resources on SCU domain.
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/gpio/driver.h>
#include <linux/platform_device.h>
#include <linux/firmware/imx/svc/rm.h>
#include <dt-bindings/firmware/imx/rsrc.h>

struct scu_gpio_priv { … };

static unsigned int scu_rsrc_arr[] = …;

static int imx_scu_gpio_get(struct gpio_chip *chip, unsigned int offset)
{ … }

static void imx_scu_gpio_set(struct gpio_chip *chip, unsigned int offset, int value)
{ … }

static int imx_scu_gpio_get_direction(struct gpio_chip *chip, unsigned int offset)
{ … }

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

static const struct of_device_id imx_scu_gpio_dt_ids[] = …;

static struct platform_driver imx_scu_gpio_driver = …;

static int __init _imx_scu_gpio_init(void)
{ … }

subsys_initcall_sync(_imx_scu_gpio_init);

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;