diff mbox

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

Message ID 1308566761-2850-2-git-send-email-tushar.behera@linaro.org (mailing list archive)
State New, archived
Headers show

Commit Message

Tushar Behera June 20, 2011, 10:46 a.m. UTC 
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.

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.

Cc: Tony Lindgren <tony@atomide.com>
Cc: Samreen <samreen@ti.com>
Signed-off-by: Tushar Behera <tushar.behera@linaro.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

 arch/arm/configs/omap2plus_defconfig |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

Comments

Sanjeev Premi June 20, 2011, 12:07 p.m. UTC | #1 
> -----Original Message-----
> From: linux-omap-owner@vger.kernel.org 
> [mailto:linux-omap-owner@vger.kernel.org] On Behalf Of Tushar Behera
> Sent: Monday, June 20, 2011 4:16 PM
> To: linux-kernel@vger.kernel.org; 
> linux-arm-kernel@lists.infradead.org; 
> linux-fbdev@vger.kernel.org; linux-omap@vger.kernel.org
> Cc: linux@arm.linux.org.uk; tony@atomide.com; 
> lethal@linux-sh.org; linaro-dev@lists.linaro.org; 
> patches@linaro.org; Nilofer, Samreen
> Subject: [PATCH 1/2] config: omap2+: force fb and dss support 
> as built-in
> 
> 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.
> 
> 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.
> 
> Cc: Tony Lindgren <tony@atomide.com>
> Cc: Samreen <samreen@ti.com>
> Signed-off-by: Tushar Behera <tushar.behera@linaro.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
> 
>  arch/arm/configs/omap2plus_defconfig |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/configs/omap2plus_defconfig 
> b/arch/arm/configs/omap2plus_defconfig
> index d5f00d7..c3ffff2 100644
> --- a/arch/arm/configs/omap2plus_defconfig
> +++ b/arch/arm/configs/omap2plus_defconfig
> @@ -138,11 +138,11 @@ CONFIG_FIRMWARE_EDID=y
>  CONFIG_FB_MODE_HELPERS=y
>  CONFIG_FB_TILEBLITTING=y
>  CONFIG_FB_OMAP_LCD_VGA=y
> -CONFIG_OMAP2_DSS=m
> +CONFIG_OMAP2_DSS=y
>  CONFIG_OMAP2_DSS_RFBI=y
>  CONFIG_OMAP2_DSS_SDI=y
>  CONFIG_OMAP2_DSS_DSI=y
> -CONFIG_FB_OMAP2=m
> +CONFIG_FB_OMAP2=y
>  CONFIG_PANEL_GENERIC_DPI=m
>  CONFIG_PANEL_SHARP_LS037V7DW01=m
>  CONFIG_PANEL_NEC_NL8048HL11_01B=m


[sp] Instead of changing the omap2plus_defconfig, shouldn't the
     board specific file be fixed instead?

~sanjeev

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Russell King - ARM Linux June 20, 2011, 12:20 p.m. UTC | #2 
On Mon, Jun 20, 2011 at 05:37:07PM +0530, Premi, Sanjeev wrote:
> [sp] Instead of changing the omap2plus_defconfig, shouldn't the
>      board specific file be fixed instead?

The board specific configuration files in the mainline kernel are
deprecated and are gradually being removed.
Sanjeev Premi June 20, 2011, 12:24 p.m. UTC | #3 
> -----Original Message-----
> From: Russell King - ARM Linux [mailto:linux@arm.linux.org.uk] 
> Sent: Monday, June 20, 2011 5:51 PM
> To: Premi, Sanjeev
> Cc: Tushar Behera; linux-kernel@vger.kernel.org; 
> linux-arm-kernel@lists.infradead.org; 
> linux-fbdev@vger.kernel.org; linux-omap@vger.kernel.org; 
> tony@atomide.com; lethal@linux-sh.org; 
> linaro-dev@lists.linaro.org; patches@linaro.org; Nilofer, Samreen
> Subject: Re: [PATCH 1/2] config: omap2+: force fb and dss 
> support as built-in
> 
> On Mon, Jun 20, 2011 at 05:37:07PM +0530, Premi, Sanjeev wrote:
> > [sp] Instead of changing the omap2plus_defconfig, shouldn't the
> >      board specific file be fixed instead?
> 
> The board specific configuration files in the mainline kernel are
> deprecated and are gradually being removed.
> 
[sp] I didn't mean board specific config file, but:
     linux-linaro-2.6.39/arch/arm/mach-omap2/board-rx51-video.c

~sanjeev
Tomi Valkeinen June 20, 2011, 1:04 p.m. UTC | #4 
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@atomide.com>
> Cc: Samreen <samreen@ti.com>
> Signed-off-by: Tushar Behera <tushar.behera@linaro.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
Tushar Behera June 21, 2011, 5 a.m. UTC | #5 
On Monday 20 June 2011 06:34 PM, Tomi Valkeinen wrote:
> 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 =).
Agreed. :)
I am not an expert in DSS. I just wanted to raise my concern.
>
>> Cc: Tony Lindgren<tony@atomide.com>
>> Cc: Samreen<samreen@ti.com>
>> Signed-off-by: Tushar Behera<tushar.behera@linaro.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?
As mentioned in the cover letter, we get this error only if 2/2 is 
applied and 1/2 is not applied.

I tested this by applying 2/2 on v3.0-rc4 and using omap2plus_defconfig.
>
>   Tomi
>
>
diff mbox

Patch

diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig
index d5f00d7..c3ffff2 100644
--- a/arch/arm/configs/omap2plus_defconfig
+++ b/arch/arm/configs/omap2plus_defconfig
@@ -138,11 +138,11 @@  CONFIG_FIRMWARE_EDID=y
 CONFIG_FB_MODE_HELPERS=y
 CONFIG_FB_TILEBLITTING=y
 CONFIG_FB_OMAP_LCD_VGA=y
-CONFIG_OMAP2_DSS=m
+CONFIG_OMAP2_DSS=y
 CONFIG_OMAP2_DSS_RFBI=y
 CONFIG_OMAP2_DSS_SDI=y
 CONFIG_OMAP2_DSS_DSI=y
-CONFIG_FB_OMAP2=m
+CONFIG_FB_OMAP2=y
 CONFIG_PANEL_GENERIC_DPI=m
 CONFIG_PANEL_SHARP_LS037V7DW01=m
 CONFIG_PANEL_NEC_NL8048HL11_01B=m