1 files changed, 0 insertions, 98 deletions
diff --git a/drivers/acpi/acpi_cmos_rtc.c b/drivers/acpi/acpi_cmos_rtc.c
deleted file mode 100644
index 9b55d1593d16..000000000000
--- a/drivers/acpi/acpi_cmos_rtc.c
+++ /dev/null
@@ -1,98 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * ACPI support for CMOS RTC Address Space access
- *
- * Copyright (C) 2013, Intel Corporation
- * Authors: Lan Tianyu <tianyu.lan@intel.com>
- */
-
-#define pr_fmt(fmt) "ACPI: " 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[] = {
-	{ "PNP0B00" },
-	{ "PNP0B01" },
-	{ "PNP0B02" },
-	{}
-};
-
-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 i;
-	u8 *value = (u8 *)value64;
-
-	if (address > 0xff || !value64)
-		return AE_BAD_PARAMETER;
-
-	if (function != ACPI_WRITE && function != ACPI_READ)
-		return AE_BAD_PARAMETER;
-
-	spin_lock_irq(&rtc_lock);
-
-	for (i = 0; i < DIV_ROUND_UP(bits, 8); ++i, ++address, ++value)
-		if (function == ACPI_READ)
-			*value = CMOS_READ(address);
-		else
-			CMOS_WRITE(*value, address);
-
-	spin_unlock_irq(&rtc_lock);
-
-	return AE_OK;
-}
-
-int acpi_install_cmos_rtc_space_handler(acpi_handle handle)
-{
-	acpi_status status;
-
-	status = acpi_install_address_space_handler(handle,
-			ACPI_ADR_SPACE_CMOS,
-			&acpi_cmos_rtc_space_handler,
-			NULL, NULL);
-	if (ACPI_FAILURE(status)) {
-		pr_err("Error installing CMOS-RTC region handler\n");
-		return -ENODEV;
-	}
-
-	return 1;
-}
-EXPORT_SYMBOL_GPL(acpi_install_cmos_rtc_space_handler);
-
-void acpi_remove_cmos_rtc_space_handler(acpi_handle handle)
-{
-	if (ACPI_FAILURE(acpi_remove_address_space_handler(handle,
-			ACPI_ADR_SPACE_CMOS, &acpi_cmos_rtc_space_handler)))
-		pr_err("Error removing CMOS-RTC region handler\n");
-}
-EXPORT_SYMBOL_GPL(acpi_remove_cmos_rtc_space_handler);
-
-static int acpi_cmos_rtc_attach_handler(struct acpi_device *adev, const struct acpi_device_id *id)
-{
-	return acpi_install_cmos_rtc_space_handler(adev->handle);
-}
-
-static void acpi_cmos_rtc_detach_handler(struct acpi_device *adev)
-{
-	acpi_remove_cmos_rtc_space_handler(adev->handle);
-}
-
-static struct acpi_scan_handler cmos_rtc_handler = {
-	.ids = acpi_cmos_rtc_ids,
-	.attach = acpi_cmos_rtc_attach_handler,
-	.detach = acpi_cmos_rtc_detach_handler,
-};
-
-void __init acpi_cmos_rtc_init(void)
-{
-	acpi_scan_add_handler(&cmos_rtc_handler);
-}