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author | Florian Tobias Schandinat <FlorianSchandinat@gmx.de> | 2012-05-27 20:58:20 +0000 |
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committer | Florian Tobias Schandinat <FlorianSchandinat@gmx.de> | 2012-05-27 20:58:20 +0000 |
commit | d85d135d8babbc917b370f36cbc02b7b4a2f2d99 (patch) | |
tree | 2f06e02940d87099670aa31459ad1ab41a1ca036 /drivers/rtc/rtc-r9701.c | |
parent | 5e7b911f9a3e582635801675b7fe935b16cd4af5 (diff) | |
parent | e92a5b28f71aea01b281f9c89d97a4bc5b24748f (diff) |
Merge tag 'omapdss-for-3.5' of git://github.com/tomba/linux into fbdev-next
Omapdss driver changes for 3.5 merge window.
Lots of normal development commits, but perhaps most notable changes are:
* HDMI rework to properly decouple the HDMI audio part from the HDMI video part.
* Restructure omapdss core driver so that it's possible to implement device
tree support. This included changing how platform data is passed to the
drivers, changing display device registration and improving the panel driver's
ability to configure the underlying video output interface.
* Basic support for DSI packet interleaving
Diffstat (limited to 'drivers/rtc/rtc-r9701.c')
-rw-r--r-- | drivers/rtc/rtc-r9701.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-r9701.c b/drivers/rtc/rtc-r9701.c index 7f8e6c247935..33b6ba0afa0d 100644 --- a/drivers/rtc/rtc-r9701.c +++ b/drivers/rtc/rtc-r9701.c @@ -122,6 +122,7 @@ static const struct rtc_class_ops r9701_rtc_ops = { static int __devinit r9701_probe(struct spi_device *spi) { struct rtc_device *rtc; + struct rtc_time dt; unsigned char tmp; int res; @@ -132,6 +133,27 @@ static int __devinit r9701_probe(struct spi_device *spi) return -ENODEV; } + /* + * The device seems to be present. Now check if the registers + * contain invalid values. If so, try to write a default date: + * 2000/1/1 00:00:00 + */ + r9701_get_datetime(&spi->dev, &dt); + if (rtc_valid_tm(&dt)) { + dev_info(&spi->dev, "trying to repair invalid date/time\n"); + dt.tm_sec = 0; + dt.tm_min = 0; + dt.tm_hour = 0; + dt.tm_mday = 1; + dt.tm_mon = 0; + dt.tm_year = 100; + + if (r9701_set_datetime(&spi->dev, &dt)) { + dev_err(&spi->dev, "cannot repair RTC register\n"); + return -ENODEV; + } + } + rtc = rtc_device_register("r9701", &spi->dev, &r9701_rtc_ops, THIS_MODULE); if (IS_ERR(rtc)) |