acrn-kernel/arch/mips/cobalt/rtc.c

52 lines
1005 B
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Registration of Cobalt RTC platform device.
*
* Copyright (C) 2007 Yoichi Yuasa <yuasa@linux-mips.org>
*/
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/mc146818rtc.h>
#include <linux/platform_device.h>
static struct resource cobalt_rtc_resource[] __initdata = {
{
.start = 0x70,
.end = 0x77,
.flags = IORESOURCE_IO,
},
{
.start = RTC_IRQ,
.end = RTC_IRQ,
.flags = IORESOURCE_IRQ,
},
};
static __init int cobalt_rtc_add(void)
{
struct platform_device *pdev;
int retval;
pdev = platform_device_alloc("rtc_cmos", -1);
if (!pdev)
return -ENOMEM;
retval = platform_device_add_resources(pdev, cobalt_rtc_resource,
ARRAY_SIZE(cobalt_rtc_resource));
if (retval)
goto err_free_device;
retval = platform_device_add(pdev);
if (retval)
goto err_free_device;
return 0;
err_free_device:
platform_device_put(pdev);
return retval;
}
device_initcall(cobalt_rtc_add);