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))
{
if(!NvOdmPmuWriteRtc(hPmu, 0))
return -EINVAL;
}
rtc = rtc_device_register(pdev->name, &pdev->dev,
&tegra_rtc_ops, THIS_MODULE);
if (IS_ERR(rtc)) {
pr_debug("%s: can't register RTC device, err %ld\n",
pdev->name, PTR_ERR(rtc));
NvOdmPmuDeviceClose(hPmu);
return -1;
}
platform_set_drvdata(pdev, rtc);
return 0;
}
void NvRmPrivPmuDeinit(NvRmDeviceHandle hRmDevice)
{
if (s_PmuSupportedEnv == NV_FALSE)
return;
PmuThreadTerminate(&s_Pmu);
NvOdmPmuDeviceClose(s_Pmu.hOdmPmu);
NvRmInterruptUnregister(hRmDevice, s_Pmu.hInterrupt);
NvOsSemaphoreDestroy(s_Pmu.hSemaphore);
NvOsMutexDestroy(s_Pmu.hMutex);
NvOsMemset(&s_Pmu, 0, sizeof(NvRmPmu));
s_PmuSupportedEnv = NV_FALSE;
}
