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drivers/rtc/rtc-ppc.c
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/* * RTC driver for ppc_md RTC functions * * © 2007 Red Hat, Inc. * * Author: David Woodhouse <dwmw2@infradead.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include <linux/module.h> #include <linux/err.h> #include <linux/rtc.h> #include <linux/platform_device.h> #include <asm/machdep.h> static int ppc_rtc_read_time(struct device *dev, struct rtc_time *tm) { ppc_md.get_rtc_time(tm); return 0; } static int ppc_rtc_set_time(struct device *dev, struct rtc_time *tm) { return ppc_md.set_rtc_time(tm); } static const struct rtc_class_ops ppc_rtc_ops = { .set_time = ppc_rtc_set_time, .read_time = ppc_rtc_read_time, }; static struct rtc_device *rtc; static struct platform_device *ppc_rtc_pdev; static int __init ppc_rtc_init(void) { if (!ppc_md.get_rtc_time || !ppc_md.set_rtc_time) return -ENODEV; ppc_rtc_pdev = platform_device_register_simple("ppc-rtc", 0, NULL, 0); if (IS_ERR(ppc_rtc_pdev)) return PTR_ERR(ppc_rtc_pdev); rtc = rtc_device_register("ppc_md", &ppc_rtc_pdev->dev, &ppc_rtc_ops, THIS_MODULE); if (IS_ERR(rtc)) { platform_device_unregister(ppc_rtc_pdev); return PTR_ERR(rtc); } return 0; } static void __exit ppc_rtc_exit(void) { rtc_device_unregister(rtc); platform_device_unregister(ppc_rtc_pdev); } module_init(ppc_rtc_init); module_exit(ppc_rtc_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>"); MODULE_DESCRIPTION("Generic RTC class driver for PowerPC"); |