linux/drivers/acpi/x86/cmos_rtc.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * ACPI support for CMOS RTC Address Space access
 *
 * Copyright (C) 2013, Intel Corporation
 * Authors: Lan Tianyu <[email protected]>
 */

#define pr_fmt(fmt) …

#include <linux/acpi.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mc146818rtc.h>

#include "../internal.h"

static const struct acpi_device_id acpi_cmos_rtc_ids[] = …;

static acpi_status
acpi_cmos_rtc_space_handler(u32 function, acpi_physical_address address,
		      u32 bits, u64 *value64,
		      void *handler_context, void *region_context)
{ … }

int acpi_install_cmos_rtc_space_handler(acpi_handle handle)
{ … }
EXPORT_SYMBOL_GPL(…);

void acpi_remove_cmos_rtc_space_handler(acpi_handle handle)
{ … }
EXPORT_SYMBOL_GPL(…);

static int acpi_cmos_rtc_attach_handler(struct acpi_device *adev, const struct acpi_device_id *id)
{ … }

static void acpi_cmos_rtc_detach_handler(struct acpi_device *adev)
{ … }

static struct acpi_scan_handler cmos_rtc_handler = …;

void __init acpi_cmos_rtc_init(void)
{ … }