linux-kernel - Re: [PATCH] drivers: omap2: Kconfig: make FB_OMAP2_DSS

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Date:   Fri, 04 May 2018 12:48:46 +0200
From:   Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To:     Randy Dunlap <rdunlap@...radead.org>,
        Mauro Carvalho Chehab <mchehab@...pensource.com>
Cc:     Anders Roxell <anders.roxell@...aro.org>, tomi.valkeinen@...com,
        linux-omap@...r.kernel.org, linux-fbdev@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drivers: omap2: Kconfig: make FB_OMAP2_DSS_INIT depend
 on OF

On Thursday, May 03, 2018 08:48:56 AM Randy Dunlap wrote:
> On 04/20/2018 04:25 AM, Anders Roxell wrote:
> > Commit 7378f1149884 ("media: omap2: omapfb: allow building it with
> > COMPILE_TEST") broke compilation without CONFIG_OF selected.
> >   CC      drivers/video/fbdev/core/fbmem.o
> > drivers/video/fbdev/omap2/omapfb/dss/omapdss-boot-init.c: In function ‘omapdss_update_prop’:
> > drivers/video/fbdev/omap2/omapfb/dss/omapdss-boot-init.c:68:2: error: implicit declaration of function ‘of_update_property’; did you mean ‘of_get_property’? [-Werror=implicit-function-declaration]
> >   of_update_property(node, prop);
> >   ^~~~~~~~~~~~~~~~~~
> >   of_get_property
> > cc1: some warnings being treated as errors
> > scripts/Makefile.build:312: recipe for target 'drivers/video/fbdev/omap2/omapfb/dss/omapdss-boot-init.o' failed
> > make[7]: *** [drivers/video/fbdev/omap2/omapfb/dss/omapdss-boot-init.o] Error 1
> > scripts/Makefile.build:559: recipe for target 'drivers/video/fbdev/omap2/omapfb/dss' failed
> > make[6]: *** [drivers/video/fbdev/omap2/omapfb/dss] Error 2
> > make[6]: *** Waiting for unfinished jobs....
> > 
> > Add OF dependency in order to make all configurations work again.
> > 
> > of_update_property() has no inline stub, and that that could be added as
> > an alternative.
> > 
> > Signed-off-by: Anders Roxell <anders.roxell@...aro.org>
> > ---
> >  drivers/video/fbdev/omap2/Kconfig | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/video/fbdev/omap2/Kconfig b/drivers/video/fbdev/omap2/Kconfig
> > index 82008699d253..4de381f2452e 100644
> > --- a/drivers/video/fbdev/omap2/Kconfig
> > +++ b/drivers/video/fbdev/omap2/Kconfig
> > @@ -1,4 +1,4 @@
> > -if ARCH_OMAP2PLUS || COMPILE_TEST
> > +if OF && (ARCH_OMAP2PLUS || COMPILE_TEST)
> >  
> >  source "drivers/video/fbdev/omap2/omapfb/Kconfig"
> >  
> > 
> 
> Hi,
> 
> This patch certainly fixes the build errors that I have been seeing in
> linux-next for several days now, so:
> 
> Acked-by: Randy Dunlap <rdunlap@...radead.org>
> Tested-by: Randy Dunlap <rdunlap@...radead.org>

Thanks.

Since there has been no follow up from Mauro on this ([1]) I guess
that the best thing I can do is simply merging both patches to fbdev
tree..

[1] https://www.spinics.net/lists/linux-media/msg132583.html

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics