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drivers/rtc/rtc-starfire.c
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/* rtc-starfire.c: Starfire platform RTC driver. * * Copyright (C) 2008 David S. Miller <davem@davemloft.net> */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> |
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#include <linux/rtc.h> #include <linux/platform_device.h> #include <asm/oplib.h> MODULE_AUTHOR("David S. Miller <davem@davemloft.net>"); MODULE_DESCRIPTION("Starfire RTC driver"); MODULE_LICENSE("GPL"); |
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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) { |
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rtc_time_to_tm(starfire_get_time(), tm); return rtc_valid_tm(tm); |
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} static const struct rtc_class_ops starfire_rtc_ops = { .read_time = starfire_read_time, |
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}; |
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static int __init starfire_rtc_probe(struct platform_device *pdev) |
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{ |
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struct rtc_device *rtc; rtc = devm_rtc_device_register(&pdev->dev, "starfire", &starfire_rtc_ops, THIS_MODULE); |
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if (IS_ERR(rtc)) return PTR_ERR(rtc); |
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platform_set_drvdata(pdev, rtc); |
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return 0; } |
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static struct platform_driver starfire_rtc_driver = { .driver = { .name = "rtc-starfire", |
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}, |
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}; |
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module_platform_driver_probe(starfire_rtc_driver, starfire_rtc_probe); |