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

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Message-ID: <20180504094526.03484b2d@vento.lan>
Date:   Fri, 4 May 2018 09:45:26 -0300
From:   Mauro Carvalho Chehab <mchehab+samsung@...nel.org>
To:     Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        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

Em Fri, 04 May 2018 13:05:17 +0200
Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com> escreveu:

> On Friday, May 04, 2018 07:59:06 AM Mauro Carvalho Chehab wrote:
> > Em Fri, 04 May 2018 12:48:46 +0200
> > Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com> escreveu:
> >   
> > > 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..

When you're saying about "both" patches, you're referring to the
original one plus this fix, right?

> > > 
> > > [1] https://www.spinics.net/lists/linux-media/msg132583.html  
> > 
> > Sorry, it seems I missed it. If you didn't merge them yet, I'll
> > merge it on my tree today, if you think it would be best to have
> > it together with the patch that enabled FB_OMAP builds with
> > COMPILE_TEST.  

I know why I missed... I was not c/c at the original patch. Well,
I received it at my LKML inbox, but nobody reads all LKML emails
those days.

> 
> This would be best indeed, you can add my ACK:
> 
> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>

Committed.

> 
> > If you prefer, instead, feel free to merge via your tree, as this is
> > FB stuff anyway.
> > 
> > If you need/want:
> > 
> > Acked-by: Mauro Carvalho Chehab <mchehab+samsung@...nel.org>  
> 
> BTW Could you please also comment on / ACK my patch in this thread:
> 
> https://www.spinics.net/lists/linux-media/msg132733.html

Sure I will look on it in a few. I'm not rushing with that 7
patch series, as the most important thing for my workflow is to build
all media drivers on i386/x86_64. Building on other archs is just a
plus, as I intend some day to also incrementally do test building on arm
as I receive/merge patches, but I don't do it yet.

Thanks,
Mauro