linux-kernel - Re: [PATCH 1/2] config: omap2+: force fb and dss support as built-in

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Message-ID: <1308575086.2076.55.camel@deskari>
Date:	Mon, 20 Jun 2011 16:04:46 +0300
From:	Tomi Valkeinen <tomi.valkeinen@...com>
To:	Tushar Behera <tushar.behera@...aro.org>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-fbdev@...r.kernel.org, linux-omap@...r.kernel.org,
	linux@....linux.org.uk, tony@...mide.com, lethal@...ux-sh.org,
	linaro-dev@...ts.linaro.org, patches@...aro.org,
	Samreen <samreen@...com>
Subject: Re: [PATCH 1/2] config: omap2+: force fb and dss support as
 built-in

On Mon, 2011-06-20 at 16:16 +0530, Tushar Behera wrote:
> In certain board files, there are references to vram related functions
> which are defined in drivers/video/omap2/vram.c. Because of this direct
> dependency, CONFIG_FB_OMAP2 should be a built-in feature.

arch/arm/plat-omap/include/plat/vram.h defines dummy inline function in
case vram.c is not compiled in, so the board files should compile fine.

> As per the current architecture, CONFIG_FB_OMAP2 is dependent on
> CONFIG_OMAP2_DSS. Hence CONFIG_OMAP2_DSS support should also be selected
> by default.

The configuration is fine as it is. And anyway, if things do not compile
when something is configured as a module, the correct fix is hardly just
changing the feature to be compiled built-in =).

> Cc: Tony Lindgren <tony@...mide.com>
> Cc: Samreen <samreen@...com>
> Signed-off-by: Tushar Behera <tushar.behera@...aro.org>
> ---
> arch/arm/mach-omap2/built-in.o: In function `rx51_video_mem_init':
> linux-linaro-2.6.39/arch/arm/mach-omap2/board-rx51-video.c:97: undefined reference to `omap_vram_set_sdram_vram'
> arch/arm/plat-omap/built-in.o: In function `omap_reserve':
> linux-linaro-2.6.39/arch/arm/plat-omap/common.c:66: undefined reference to `omap_vram_reserve_sdram_memblock'
> arch/arm/plat-omap/built-in.o: In function `omap_detect_sram':
> linux-linaro-2.6.39/arch/arm/plat-omap/sram.c:179: undefined reference to `omap_vram_reserve_sram'
> make[1]: *** [.tmp_vmlinux1] Error 1
> make: *** [sub-make] Error 2

Compiles fine for me. Perhaps you are using some old kernel?

 Tomi


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