From: Bruno Thomsen <bruno.thomsen@gmail.com>
To: alexandre.belloni@bootlin.com, linux@roeck-us.net, yuehaibing@huawei.com
Cc: a.zummo@towertech.it, bruno.thomsen@gmail.com,
linux-rtc@vger.kernel.org, linux-kernel@vger.kernel.org,
Hulk Robot <hulkci@huawei.com>
Subject: [PATCH] rtc: pcf2127: bugfix: watchdog build dependency
Date: Tue, 27 Aug 2019 16:36:56 +0200 [thread overview]
Message-ID: <20190827143656.4734-1-bruno.thomsen@gmail.com> (raw)
Disable watchdog registation when kernel is build without
watchdog functionality, and enable watchdog core otherwise.
This removes compile errors like the one below:
drivers/rtc/rtc-pcf2127.o: in function `pcf2127_probe.constprop.3':
rtc-pcf2127.c:(.text.unlikely+0x2c8): undefined reference to
`devm_watchdog_register_device'
Watchdog feature in chip will always be configured as
this is safe to do in both cases and minimize code churn.
Reported-by: Hulk Robot <hulkci@huawei.com>
Reported-by: YueHaibing <yuehaibing@huawei.com>
Fixes: bbc597561ce1 ("rtc: pcf2127: add watchdog feature support")
Signed-off-by: Bruno Thomsen <bruno.thomsen@gmail.com>
---
drivers/rtc/Kconfig | 1 +
drivers/rtc/rtc-pcf2127.c | 2 ++
2 files changed, 3 insertions(+)
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index a3bb58a08879..ab0ccf4a3247 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -874,6 +874,7 @@ config RTC_DRV_DS3232_HWMON
config RTC_DRV_PCF2127
tristate "NXP PCF2127"
depends on RTC_I2C_AND_SPI
+ select WATCHDOG_CORE if WATCHDOG
help
If you say yes here you get support for the NXP PCF2127/29 RTC
chips with integrated quartz crystal for industrial applications.
diff --git a/drivers/rtc/rtc-pcf2127.c b/drivers/rtc/rtc-pcf2127.c
index 3ec87d320766..02b069caffd5 100644
--- a/drivers/rtc/rtc-pcf2127.c
+++ b/drivers/rtc/rtc-pcf2127.c
@@ -475,9 +475,11 @@ static int pcf2127_probe(struct device *dev, struct regmap *regmap,
return ret;
}
+#ifdef CONFIG_WATCHDOG
ret = devm_watchdog_register_device(dev, &pcf2127->wdd);
if (ret)
return ret;
+#endif /* CONFIG_WATCHDOG */
/*
* Disable battery low/switch-over timestamp and interrupts.
--
2.21.0
next reply other threads:[~2019-08-27 14:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-27 14:36 Bruno Thomsen [this message]
2019-08-27 16:26 ` [PATCH] rtc: pcf2127: bugfix: watchdog build dependency Alexandre Belloni
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