// SPDX-License-Identifier: GPL-2.0/* * PS3 RTC Driver * * Copyright 2009 Sony Corporation */ #include <linux/kernel.h>#include <linux/module.h>#include <linux/platform_device.h>#include <linux/rtc.h> #include <asm/lv1call.h>#include <asm/ps3.h>  static u64 read_rtc(void){	int result;	u64 rtc_val;	u64 tb_val; 	result = lv1_get_rtc(&rtc_val, &tb_val);	BUG_ON(result); 	return rtc_val;} static int ps3_get_time(struct device *dev, struct rtc_time *tm){	rtc_time64_to_tm(read_rtc() + ps3_os_area_get_rtc_diff(), tm);	return 0;} static int ps3_set_time(struct device *dev, struct rtc_time *tm){	ps3_os_area_set_rtc_diff(rtc_tm_to_time64(tm) - read_rtc());	return 0;} static const struct rtc_class_ops ps3_rtc_ops = {	.read_time = ps3_get_time,	.set_time = ps3_set_time,}; static int __init ps3_rtc_probe(struct platform_device *dev){	struct rtc_device *rtc; 	rtc = devm_rtc_allocate_device(&dev->dev);	if (IS_ERR(rtc))		return PTR_ERR(rtc); 	rtc->ops = &ps3_rtc_ops;	rtc->range_max = U64_MAX; 	platform_set_drvdata(dev, rtc); 	return devm_rtc_register_device(rtc);} static struct platform_driver ps3_rtc_driver = {	.driver = {		.name = "rtc-ps3",	},}; module_platform_driver_probe(ps3_rtc_driver, ps3_rtc_probe); MODULE_AUTHOR("Sony Corporation");MODULE_LICENSE("GPL");MODULE_DESCRIPTION("ps3 RTC driver");MODULE_ALIAS("platform:rtc-ps3");