From: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx> Most boards using the pcf2127 chip (in my bubble) don't make use of the watchdog functionality and the respective output is not connected. The effect on such a board is that there is a watchdog device provided that doesn't work. So only register the watchdog if the device tree has a "reset-source" property. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx> [RV: s/has-watchdog/reset-source/] Signed-off-by: Rasmus Villemoes <rasmus.villemoes@xxxxxxxxx> --- drivers/rtc/rtc-pcf2127.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/rtc/rtc-pcf2127.c b/drivers/rtc/rtc-pcf2127.c index 33fa8b17b79c..39a7b5116aa4 100644 --- a/drivers/rtc/rtc-pcf2127.c +++ b/drivers/rtc/rtc-pcf2127.c @@ -336,7 +336,8 @@ static int pcf2127_watchdog_init(struct device *dev, struct pcf2127 *pcf2127) u32 wdd_timeout; int ret; - if (!IS_ENABLED(CONFIG_WATCHDOG)) + if (!IS_ENABLED(CONFIG_WATCHDOG) || + !device_property_read_bool(dev, "reset-source")) return 0; pcf2127->wdd.parent = dev; -- 2.23.0
