/* 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 devm_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);