diff --git a/[refs] b/[refs] index 12a6860ddceb..f3b2e0f1f452 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 0c1355e36fdc304b102851312d80a1e69c01f5a2 +refs/heads/master: 9d1d4f9eabbca276a2a618a94ed3149d5971063e diff --git a/trunk/drivers/rtc/rtc-mv.c b/trunk/drivers/rtc/rtc-mv.c index 45f12dcd3716..e0263d2005ee 100644 --- a/trunk/drivers/rtc/rtc-mv.c +++ b/trunk/drivers/rtc/rtc-mv.c @@ -12,6 +12,7 @@ #include #include #include +#include #define RTC_TIME_REG_OFFS 0 @@ -119,6 +120,16 @@ static int __init mv_rtc_probe(struct platform_device *pdev) return -EINVAL; } + /* make sure it is actually functional */ + if (rtc_time == 0x01000000) { + ssleep(1); + rtc_time = readl(pdata->ioaddr + RTC_TIME_REG_OFFS); + if (rtc_time == 0x01000000) { + dev_err(&pdev->dev, "internal RTC not ticking\n"); + return -ENODEV; + } + } + platform_set_drvdata(pdev, pdata); pdata->rtc = rtc_device_register(pdev->name, &pdev->dev, &mv_rtc_ops, THIS_MODULE);