diff options
| author | Atsushi Nemoto <anemo@mba.ocn.ne.jp> | 2006-09-29 02:01:37 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-29 09:18:24 -0700 |
| commit | 13c73f045f2ac33219729678f4a9389d4ccab799 (patch) | |
| tree | 9be3f3f917a6a766090381d202c059c5c5d1875c /drivers/rtc | |
| parent | b9dd6ffc3d6b56417a2c4c917f51dab6470166e6 (diff) | |
[PATCH] RTC: more XSTP/VDET support for rtc-rs5c348 driver
If the chip detected "oscillator stop" condition, show an warning message.
And initialize it with the Epoch time instead of leaving it with unknown
date/time.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-rs5c348.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-rs5c348.c b/drivers/rtc/rtc-rs5c348.c index 0964d1dba925..25589061f931 100644 --- a/drivers/rtc/rtc-rs5c348.c +++ b/drivers/rtc/rtc-rs5c348.c @@ -23,7 +23,7 @@ #include <linux/workqueue.h> #include <linux/spi/spi.h> -#define DRV_VERSION "0.1" +#define DRV_VERSION "0.2" #define RS5C348_REG_SECS 0 #define RS5C348_REG_MINS 1 @@ -175,8 +175,15 @@ static int __devinit rs5c348_probe(struct spi_device *spi) goto kfree_exit; if (ret & (RS5C348_BIT_XSTP | RS5C348_BIT_VDET)) { u8 buf[2]; + struct rtc_time tm; if (ret & RS5C348_BIT_VDET) dev_warn(&spi->dev, "voltage-low detected.\n"); + if (ret & RS5C348_BIT_XSTP) + dev_warn(&spi->dev, "oscillator-stop detected.\n"); + rtc_time_to_tm(0, &tm); /* 1970/1/1 */ + ret = rs5c348_rtc_set_time(&spi->dev, &tm); + if (ret < 0) + goto kfree_exit; buf[0] = RS5C348_CMD_W(RS5C348_REG_CTL2); buf[1] = 0; ret = spi_write_then_read(spi, buf, sizeof(buf), NULL, 0); |