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Date: Tue, 1 Mar 2016 17:59:57 +0100 From: Arnd Bergmann <arnd@...db.de> To: Alexandre Belloni <alexandre.belloni@...e-electrons.com> Cc: linux-arm-kernel@...ts.infradead.org, Kyle McMartin <kyle@...artin.ca>, rtc-linux@...glegroups.com, Alessandro Zummo <a.zummo@...ertech.it>, linuxppc-dev@...ts.ozlabs.org, linux-sh@...r.kernel.org, linux-parisc@...r.kernel.org, linux-m68k@...ts.linux-m68k.org, Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org Subject: [PATCH 1/6] rtc: generic: allow building on all architectures There are four architectures using this driver, but since we can build it with COMPILE_TEST, we should try dealing with the absence of the asm/rtc.h header file, to avoid getting a build error: drivers/rtc/rtc-generic.c:12:21: fatal error: asm/rtc.h: No such file or directory This creates an alternative use of the driver, allowing architectures to pass a set of rtc_class_ops in platform data. We can convert the four architectures to use this and then remove the original code. Signed-off-by: Arnd Bergmann <arnd@...db.de> --- drivers/rtc/rtc-generic.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/rtc/rtc-generic.c b/drivers/rtc/rtc-generic.c index e782ebd719b2..d726c6aa96a8 100644 --- a/drivers/rtc/rtc-generic.c +++ b/drivers/rtc/rtc-generic.c @@ -9,6 +9,8 @@ #include <linux/platform_device.h> #include <linux/rtc.h> +#if defined(CONFIG_M68K) || defined(CONFIG_PARISC) || \ + defined(CONFIG_PPC) || defined(CONFIG_SUPERH32) #include <asm/rtc.h> static int generic_get_time(struct device *dev, struct rtc_time *tm) @@ -33,13 +35,21 @@ static const struct rtc_class_ops generic_rtc_ops = { .read_time = generic_get_time, .set_time = generic_set_time, }; +#else +#define generic_rtc_ops *(struct rtc_class_ops*)NULL +#endif static int __init generic_rtc_probe(struct platform_device *dev) { struct rtc_device *rtc; + const struct rtc_class_ops *ops; + + ops = dev_get_platdata(&dev->dev); + if (!ops) + ops = &generic_rtc_ops; rtc = devm_rtc_device_register(&dev->dev, "rtc-generic", - &generic_rtc_ops, THIS_MODULE); + ops, THIS_MODULE); if (IS_ERR(rtc)) return PTR_ERR(rtc); -- 2.7.0
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