aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/rtc
diff options
context:
space:
mode:
authorMark Brown <broonie@opensource.wolfsonmicro.com>2010-03-22 07:17:26 -0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-03-22 07:17:26 -0400
commitf9b44121b34174ae4f243a568393fc3225842e75 (patch)
tree943f68cd7458d08a9e8809ed0a10b71b23911f3e /drivers/rtc
parent8727b909bb2348d29e62c599cd7a5d610da3760f (diff)
parent220bf991b0366cc50a94feede3d7341fa5710ee4 (diff)
Merge commit 'v2.6.34-rc2' into for-2.6.34
Diffstat (limited to 'drivers/rtc')
-rw-r--r--drivers/rtc/hctosys.c59
-rw-r--r--drivers/rtc/rtc-ds1742.c1
-rw-r--r--drivers/rtc/rtc-sysfs.c5
3 files changed, 38 insertions, 27 deletions
diff --git a/drivers/rtc/hctosys.c b/drivers/rtc/hctosys.c
index 33c0e98243ee..bc90b091f195 100644
--- a/drivers/rtc/hctosys.c
+++ b/drivers/rtc/hctosys.c
@@ -22,48 +22,57 @@
22 * the best guess is to add 0.5s. 22 * the best guess is to add 0.5s.
23 */ 23 */
24 24
25int rtc_hctosys_ret = -ENODEV;
26
25static int __init rtc_hctosys(void) 27static int __init rtc_hctosys(void)
26{ 28{
27 int err; 29 int err = -ENODEV;
28 struct rtc_time tm; 30 struct rtc_time tm;
31 struct timespec tv = {
32 .tv_nsec = NSEC_PER_SEC >> 1,
33 };
29 struct rtc_device *rtc = rtc_class_open(CONFIG_RTC_HCTOSYS_DEVICE); 34 struct rtc_device *rtc = rtc_class_open(CONFIG_RTC_HCTOSYS_DEVICE);
30 35
31 if (rtc == NULL) { 36 if (rtc == NULL) {
32 printk("%s: unable to open rtc device (%s)\n", 37 pr_err("%s: unable to open rtc device (%s)\n",
33 __FILE__, CONFIG_RTC_HCTOSYS_DEVICE); 38 __FILE__, CONFIG_RTC_HCTOSYS_DEVICE);
34 return -ENODEV; 39 goto err_open;
35 } 40 }
36 41
37 err = rtc_read_time(rtc, &tm); 42 err = rtc_read_time(rtc, &tm);
38 if (err == 0) { 43 if (err) {
39 err = rtc_valid_tm(&tm); 44 dev_err(rtc->dev.parent,
40 if (err == 0) { 45 "hctosys: unable to read the hardware clock\n");
41 struct timespec tv; 46 goto err_read;
42 47
43 tv.tv_nsec = NSEC_PER_SEC >> 1; 48 }
44 49
45 rtc_tm_to_time(&tm, &tv.tv_sec); 50 err = rtc_valid_tm(&tm);
51 if (err) {
52 dev_err(rtc->dev.parent,
53 "hctosys: invalid date/time\n");
54 goto err_invalid;
55 }
46 56
47 do_settimeofday(&tv); 57 rtc_tm_to_time(&tm, &tv.tv_sec);
48 58
49 dev_info(rtc->dev.parent, 59 do_settimeofday(&tv);
50 "setting system clock to "
51 "%d-%02d-%02d %02d:%02d:%02d UTC (%u)\n",
52 tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
53 tm.tm_hour, tm.tm_min, tm.tm_sec,
54 (unsigned int) tv.tv_sec);
55 }
56 else
57 dev_err(rtc->dev.parent,
58 "hctosys: invalid date/time\n");
59 }
60 else
61 dev_err(rtc->dev.parent,
62 "hctosys: unable to read the hardware clock\n");
63 60
61 dev_info(rtc->dev.parent,
62 "setting system clock to "
63 "%d-%02d-%02d %02d:%02d:%02d UTC (%u)\n",
64 tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
65 tm.tm_hour, tm.tm_min, tm.tm_sec,
66 (unsigned int) tv.tv_sec);
67
68err_invalid:
69err_read:
64 rtc_class_close(rtc); 70 rtc_class_close(rtc);
65 71
66 return 0; 72err_open:
73 rtc_hctosys_ret = err;
74
75 return err;
67} 76}
68 77
69late_initcall(rtc_hctosys); 78late_initcall(rtc_hctosys);
diff --git a/drivers/rtc/rtc-ds1742.c b/drivers/rtc/rtc-ds1742.c
index a1273360a44e..cad9ceb89baf 100644
--- a/drivers/rtc/rtc-ds1742.c
+++ b/drivers/rtc/rtc-ds1742.c
@@ -184,6 +184,7 @@ static int __devinit ds1742_rtc_probe(struct platform_device *pdev)
184 pdata->size_nvram = pdata->size - RTC_SIZE; 184 pdata->size_nvram = pdata->size - RTC_SIZE;
185 pdata->ioaddr_rtc = ioaddr + pdata->size_nvram; 185 pdata->ioaddr_rtc = ioaddr + pdata->size_nvram;
186 186
187 sysfs_bin_attr_init(&pdata->nvram_attr);
187 pdata->nvram_attr.attr.name = "nvram"; 188 pdata->nvram_attr.attr.name = "nvram";
188 pdata->nvram_attr.attr.mode = S_IRUGO | S_IWUSR; 189 pdata->nvram_attr.attr.mode = S_IRUGO | S_IWUSR;
189 pdata->nvram_attr.read = ds1742_nvram_read; 190 pdata->nvram_attr.read = ds1742_nvram_read;
diff --git a/drivers/rtc/rtc-sysfs.c b/drivers/rtc/rtc-sysfs.c
index 7dd23a6fc825..380083ca572f 100644
--- a/drivers/rtc/rtc-sysfs.c
+++ b/drivers/rtc/rtc-sysfs.c
@@ -107,8 +107,9 @@ rtc_sysfs_show_hctosys(struct device *dev, struct device_attribute *attr,
107 char *buf) 107 char *buf)
108{ 108{
109#ifdef CONFIG_RTC_HCTOSYS_DEVICE 109#ifdef CONFIG_RTC_HCTOSYS_DEVICE
110 if (strcmp(dev_name(&to_rtc_device(dev)->dev), 110 if (rtc_hctosys_ret == 0 &&
111 CONFIG_RTC_HCTOSYS_DEVICE) == 0) 111 strcmp(dev_name(&to_rtc_device(dev)->dev),
112 CONFIG_RTC_HCTOSYS_DEVICE) == 0)
112 return sprintf(buf, "1\n"); 113 return sprintf(buf, "1\n");
113 else 114 else
114#endif 115#endif