linux/drivers/opp/debugfs.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Generic OPP debugfs interface
 *
 * Copyright (C) 2015-2016 Viresh Kumar <[email protected]>
 */

#define pr_fmt(fmt) …

#include <linux/debugfs.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/init.h>
#include <linux/limits.h>
#include <linux/slab.h>

#include "opp.h"

static struct dentry *rootdir;

static void opp_set_dev_name(const struct device *dev, char *name)
{ … }

void opp_debug_remove_one(struct dev_pm_opp *opp)
{ … }

static ssize_t bw_name_read(struct file *fp, char __user *userbuf,
			    size_t count, loff_t *ppos)
{ … }

static const struct file_operations bw_name_fops = …;

static void opp_debug_create_bw(struct dev_pm_opp *opp,
				struct opp_table *opp_table,
				struct dentry *pdentry)
{ … }

static void opp_debug_create_clks(struct dev_pm_opp *opp,
				  struct opp_table *opp_table,
				  struct dentry *pdentry)
{ … }

static void opp_debug_create_supplies(struct dev_pm_opp *opp,
				      struct opp_table *opp_table,
				      struct dentry *pdentry)
{ … }

void opp_debug_create_one(struct dev_pm_opp *opp, struct opp_table *opp_table)
{ … }

static void opp_list_debug_create_dir(struct opp_device *opp_dev,
				      struct opp_table *opp_table)
{ … }

static void opp_list_debug_create_link(struct opp_device *opp_dev,
				       struct opp_table *opp_table)
{ … }

/**
 * opp_debug_register - add a device opp node to the debugfs 'opp' directory
 * @opp_dev: opp-dev pointer for device
 * @opp_table: the device-opp being added
 *
 * Dynamically adds device specific directory in debugfs 'opp' directory. If the
 * device-opp is shared with other devices, then links will be created for all
 * devices except the first.
 */
void opp_debug_register(struct opp_device *opp_dev, struct opp_table *opp_table)
{ … }

static void opp_migrate_dentry(struct opp_device *opp_dev,
			       struct opp_table *opp_table)
{ … }

/**
 * opp_debug_unregister - remove a device opp node from debugfs opp directory
 * @opp_dev: opp-dev pointer for device
 * @opp_table: the device-opp being removed
 *
 * Dynamically removes device specific directory from debugfs 'opp' directory.
 */
void opp_debug_unregister(struct opp_device *opp_dev,
			  struct opp_table *opp_table)
{ … }

static int __init opp_debug_init(void)
{ … }
core_initcall(opp_debug_init);