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authorIngo Molnar <mingo@elte.hu>2008-07-08 01:47:47 -0400
committerIngo Molnar <mingo@elte.hu>2008-07-08 01:47:47 -0400
commit93022136fff9e6130aa128a5ed8a599e93ac813c (patch)
tree185390fb75a3d7423cc508610b76637c957205b9 /drivers/rtc/rtc-ppc.c
parentc49c412a47b5102516d3313d4eba38cb1e968721 (diff)
parentb7279469d66b55119784b8b9529c99c1955fe747 (diff)
Merge commit 'v2.6.26-rc9' into x86/cpu
Diffstat (limited to 'drivers/rtc/rtc-ppc.c')
-rw-r--r--drivers/rtc/rtc-ppc.c69
1 files changed, 69 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-ppc.c b/drivers/rtc/rtc-ppc.c
new file mode 100644
index 000000000000..c8e97e25ef7e
--- /dev/null
+++ b/drivers/rtc/rtc-ppc.c
@@ -0,0 +1,69 @@
1/*
2 * RTC driver for ppc_md RTC functions
3 *
4 * © 2007 Red Hat, Inc.
5 *
6 * Author: David Woodhouse <dwmw2@infradead.org>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13
14#include <linux/module.h>
15#include <linux/err.h>
16#include <linux/rtc.h>
17#include <linux/platform_device.h>
18#include <asm/machdep.h>
19
20static int ppc_rtc_read_time(struct device *dev, struct rtc_time *tm)
21{
22 ppc_md.get_rtc_time(tm);
23 return 0;
24}
25
26static int ppc_rtc_set_time(struct device *dev, struct rtc_time *tm)
27{
28 return ppc_md.set_rtc_time(tm);
29}
30
31static const struct rtc_class_ops ppc_rtc_ops = {
32 .set_time = ppc_rtc_set_time,
33 .read_time = ppc_rtc_read_time,
34};
35
36static struct rtc_device *rtc;
37static struct platform_device *ppc_rtc_pdev;
38
39static int __init ppc_rtc_init(void)
40{
41 if (!ppc_md.get_rtc_time || !ppc_md.set_rtc_time)
42 return -ENODEV;
43
44 ppc_rtc_pdev = platform_device_register_simple("ppc-rtc", 0, NULL, 0);
45 if (IS_ERR(ppc_rtc_pdev))
46 return PTR_ERR(ppc_rtc_pdev);
47
48 rtc = rtc_device_register("ppc_md", &ppc_rtc_pdev->dev,
49 &ppc_rtc_ops, THIS_MODULE);
50 if (IS_ERR(rtc)) {
51 platform_device_unregister(ppc_rtc_pdev);
52 return PTR_ERR(rtc);
53 }
54
55 return 0;
56}
57
58static void __exit ppc_rtc_exit(void)
59{
60 rtc_device_unregister(rtc);
61 platform_device_unregister(ppc_rtc_pdev);
62}
63
64module_init(ppc_rtc_init);
65module_exit(ppc_rtc_exit);
66
67MODULE_LICENSE("GPL");
68MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
69MODULE_DESCRIPTION("Generic RTC class driver for PowerPC");