linux/drivers/misc/smpro-misc.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Ampere Computing SoC's SMpro Misc Driver
 *
 * Copyright (c) 2022, Ampere Computing LLC
 */
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>

/* Boot Stage/Progress Registers */
#define BOOTSTAGE …
#define BOOTSTAGE_LO …
#define CUR_BOOTSTAGE …
#define BOOTSTAGE_HI …

/* SOC State Registers */
#define SOC_POWER_LIMIT …

struct smpro_misc { … };

static ssize_t boot_progress_show(struct device *dev, struct device_attribute *da, char *buf)
{ … }

static DEVICE_ATTR_RO(boot_progress);

static ssize_t soc_power_limit_show(struct device *dev, struct device_attribute *da, char *buf)
{ … }

static ssize_t soc_power_limit_store(struct device *dev, struct device_attribute *da,
				     const char *buf, size_t count)
{ … }

static DEVICE_ATTR_RW(soc_power_limit);

static struct attribute *smpro_misc_attrs[] = …;

ATTRIBUTE_GROUPS(…);

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

static struct platform_driver smpro_misc_driver = …;

module_platform_driver(…) …;

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