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

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Message-ID: <16e74acc-1265-faec-0c36-49681a7760e4@infradead.org>
Date:   Thu, 3 May 2018 08:48:56 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Anders Roxell <anders.roxell@...aro.org>, tomi.valkeinen@...com,
        b.zolnierkie@...sung.com
Cc:     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 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>

OTOH, I would rather see the Kconfig dependencies all expressed in
drivers/video/fbdev/omap2/omapfb/Kconfig instead of them being split
between 2 Kconfig files.

thanks,
-- 
~Randy