linux/drivers/reset/reset-sunplus.c

// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
/*
 * SP7021 reset driver
 *
 * Copyright (C) Sunplus Technology Co., Ltd.
 *       All rights reserved.
 */

#include <linux/io.h>
#include <linux/init.h>
#include <linux/mod_devicetable.h>
#include <linux/platform_device.h>
#include <linux/reset-controller.h>
#include <linux/reboot.h>

/* HIWORD_MASK_REG BITS */
#define BITS_PER_HWM_REG …

/* resets HW info: reg_index_shift */
static const u32 sp_resets[] = …;

struct sp_reset { … };

static inline struct sp_reset *to_sp_reset(struct reset_controller_dev *rcdev)
{ … }

static int sp_reset_update(struct reset_controller_dev *rcdev,
			   unsigned long id, bool assert)
{ … }

static int sp_reset_assert(struct reset_controller_dev *rcdev,
			   unsigned long id)
{ … }

static int sp_reset_deassert(struct reset_controller_dev *rcdev,
			     unsigned long id)
{ … }

static int sp_reset_status(struct reset_controller_dev *rcdev,
			   unsigned long id)
{ … }

static const struct reset_control_ops sp_reset_ops = …;

static int sp_restart(struct notifier_block *nb, unsigned long mode,
		      void *cmd)
{ … }

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

static const struct of_device_id sp_reset_dt_ids[] = …;

static struct platform_driver sp_reset_driver = …;
builtin_platform_driver(…) …;