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Diffstat (limited to 'drivers/rtc')
-rw-r--r--drivers/rtc/rtc-stmp3xxx.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/rtc/rtc-stmp3xxx.c b/drivers/rtc/rtc-stmp3xxx.c
index d578e40d5a50..b76318fd5bb0 100644
--- a/drivers/rtc/rtc-stmp3xxx.c
+++ b/drivers/rtc/rtc-stmp3xxx.c
@@ -288,10 +288,22 @@ static int stmp3xxx_rtc_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, rtc_data);
- err = stmp_reset_block(rtc_data->io);
- if (err) {
- dev_err(&pdev->dev, "stmp_reset_block failed: %d\n", err);
- return err;
+ /*
+ * Resetting the rtc stops the watchdog timer that is potentially
+ * running. So (assuming it is running on purpose) don't reset if the
+ * watchdog is enabled.
+ */
+ if (readl(rtc_data->io + STMP3XXX_RTC_CTRL) &
+ STMP3XXX_RTC_CTRL_WATCHDOGEN) {
+ dev_info(&pdev->dev,
+ "Watchdog is running, skip resetting rtc\n");
+ } else {
+ err = stmp_reset_block(rtc_data->io);
+ if (err) {
+ dev_err(&pdev->dev, "stmp_reset_block failed: %d\n",
+ err);
+ return err;
+ }
}
/*