From mboxrd@z Thu Jan  1 00:00:00 1970
From: arnd@arndb.de (Arnd Bergmann)
Date: Mon, 15 Dec 2014 15:06:50 +0100
Subject: [PATCH 5/8] mfd: Add ST's Low Power Controller driver
In-Reply-To: <20141215135052.GC13885@x1>
References: <1418642738-17407-1-git-send-email-lee.jones@linaro.org>
 <2928949.OKYp272uiY@wuerfel> <20141215135052.GC13885@x1>
Message-ID: <5276146.VV460E9Y1P@wuerfel>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Monday 15 December 2014 13:50:52 Lee Jones wrote:
> > > 
> > 
> > I don't think it's necessary to have the MFD node if only one of the
> > two modes can be used based on a DT property. It should be enough
> > to have both the rtc and the wdt driver list the same compatible
> > string and check the property in the probe function to decide if
> > they want to drive the device or not:
> 
> I tried that and it didn't work.  Only one driver probed.
> 
> 

Strange, the code in really_probe() and the comment in device_attach()
suggest that this is not the intentional behavior. What error
code did you return? If it's -ENODEV or -ENXIO, it should keep
trying the other drivers, otherwise it will give up.

	Arnd