linux-kernel - Re: [PATCH v4 1/2] watchdog: Add Cadence WDT driver

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Date:	Fri, 22 Aug 2014 00:33:44 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	Harini Katakam <harinik@...inx.com>
Cc:	wim@...ana.be, grant.likely@...aro.org, robh+dt@...nel.org,
	pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	rob@...dley.net, michals@...inx.com,
	linux-watchdog@...r.kernel.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org, linux-doc@...r.kernel.org,
	harinikatakamlinux@...il.com, svemula@...inx.com,
	anirudh@...inx.com
Subject: Re: [PATCH v4 1/2] watchdog: Add Cadence WDT driver

On Thu, Aug 21, 2014 at 11:57:22AM -0700, Guenter Roeck wrote:
> On Thu, Jul 31, 2014 at 12:10:54PM +0530, Harini Katakam wrote:
> > Add Cadence WDT driver. This is used by Xilinx Zynq.
> > 
> > Signed-off-by: Harini Katakam <harinik@...inx.com>
> 
> Reviewed-by: Guenter Roeck <linux@...ck-us.net>

Hah, that was too fast. The driver causes build errors for a number or
architectures, including x86_64.

drivers/watchdog/cadence_wdt.c: In function 'cdns_wdt_writereg':
drivers/watchdog/cadence_wdt.c:93:2: error: implicit declaration of function
'writel_relaxed' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[2]: *** [drivers/watchdog/cadence_wdt.o] Error 1
make[1]: *** [drivers/watchdog] Error 2

Please make sure that the driver is only configurable for architectures
supporting writel_relaxed.

Thanks,,
Guenter
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