Orange Pi5 kernel

/* rtc-starfire.c: Starfire platform RTC driver.
 *
 * Author: David S. Miller
 * License: GPL
 *
 * Copyright (C) 2008 David S. Miller <davem@davemloft.net>
 */
 
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/rtc.h>
#include <linux/platform_device.h>
 
#include <asm/oplib.h>
 
static u32 starfire_get_time(void)
{
<------>static char obp_gettod[32];
<------>static u32 unix_tod;
 
<------>sprintf(obp_gettod, "h# %08x unix-gettod",
<------><------>(unsigned int) (long) &unix_tod);
<------>prom_feval(obp_gettod);
 
<------>return unix_tod;
}
 
static int starfire_read_time(struct device *dev, struct rtc_time *tm)
{
<------>rtc_time64_to_tm(starfire_get_time(), tm);
<------>return 0;
}
 
static const struct rtc_class_ops starfire_rtc_ops = {
<------>.read_time	= starfire_read_time,
};
 
static int __init starfire_rtc_probe(struct platform_device *pdev)
{
<------>struct rtc_device *rtc;
 
<------>rtc = devm_rtc_allocate_device(&pdev->dev);
<------>if (IS_ERR(rtc))
<------><------>return PTR_ERR(rtc);
 
<------>rtc->ops = &starfire_rtc_ops;
<------>rtc->range_max = U32_MAX;
 
<------>platform_set_drvdata(pdev, rtc);
 
<------>return rtc_register_device(rtc);
}
 
static struct platform_driver starfire_rtc_driver = {
<------>.driver		= {
<------><------>.name	= "rtc-starfire",
<------>},
};
 
builtin_platform_driver_probe(starfire_rtc_driver, starfire_rtc_probe);