diff options
Diffstat (limited to 'drivers/rtc/rtc-tegra-odm.c')
| -rw-r--r-- | drivers/rtc/rtc-tegra-odm.c | 29 |
1 files changed, 12 insertions, 17 deletions
diff --git a/drivers/rtc/rtc-tegra-odm.c b/drivers/rtc/rtc-tegra-odm.c index 49a48c60fc84..a5ff518c5aa6 100644 --- a/drivers/rtc/rtc-tegra-odm.c +++ b/drivers/rtc/rtc-tegra-odm.c @@ -33,9 +33,6 @@ #include <nvodm_pmu.h> -#define SET_YEAR(Y) (Y-1900) -#define SET_MONTH(M) (M-1) - /* Create a custom rtc structrue and move this to that structure */ static NvOdmPmuDeviceHandle hPmu = NULL; @@ -51,20 +48,7 @@ static int tegra_rtc_read_time(struct device *dev, struct rtc_time *tm) return -1; } - if (!now) { - tm->tm_sec = 0; - tm->tm_min = 0; - tm->tm_hour = 0; - tm->tm_mday = 1; - tm->tm_mon = SET_MONTH(5); - tm->tm_year = SET_YEAR(2009); - tm->tm_wday = 0; - tm->tm_yday = 0; - tm->tm_isdst = 0; - } else { - rtc_time_to_tm(now, tm); - } - + rtc_time_to_tm(now, tm); return 0; } @@ -95,12 +79,23 @@ static struct rtc_class_ops tegra_rtc_ops = { static int __init tegra_rtc_probe(struct platform_device *pdev) { struct rtc_device *rtc; + NvU32 initial; if (NvOdmPmuDeviceOpen(&hPmu) == NV_FALSE) { pr_debug("%s: NvOdmPmuDeviceOpen failed\n", pdev->name); return -ENXIO; } + /* if the SoCs PMU has't been properly initialized, a bogus large + * value may be returned which triggers the Y2038 bug in the kernel. + * work-around this issue by checking the initial value of the PMU + * and then clobbering it if the value is bogus */ + + if (NvOdmPmuReadRtc(hPmu, &initial) && ((time_t)initial < 0)) + NvOdmPmuWriteRtc(hPmu, 0); + + + rtc = rtc_device_register(pdev->name, &pdev->dev, &tegra_rtc_ops, THIS_MODULE); |