Re: LVDS SUPPORT RCAR

[Laurent Pinchart]

Hello Jithin,

On Wednesday 28 Sep 2016 09:22:46 Jithin T Raj wrote:
> hi,
>first of all thanks alot for the support you are giving..when i tried to
> make .dtb file i am getting following error..I am using 3.10.31-ltsi

3.10.31 is very old. If you want community support I recommend upgrading to 
the mainline kernel. If you can't, you'll have to update your device tree (and 
possibly the DU driver) by backporting changes from mainline.

> ubuntu@teltvm2468l:~/Jithin/Koelsch/kernel$ make -j4 r8a7791-koelsch.dtb
>   CC  scripts/mod/devicetable-offsets.s
>   GEN scripts/mod/devicetable-offsets.h
>   HOSTCC  scripts/mod/file2alias.o
>   HOSTLD  scripts/mod/modpost
>   DTC arch/arm/boot/dts/r8a7791-koelsch.dtb
> Error: arch/arm/boot/dts/r8a77xx-aa104xd12-panel.dtsi:41.4-5 label or path,
> 'lvds_connector', not found FATAL ERROR: Syntax error parsing input tree
> make[1]: *** [arch/arm/boot/dts/r8a7791-koelsch.dtb] Error 1
> make: *** [r8a7791-koelsch.dtb] Error 2
> 
> here i am attaching my r8a7791.dts file

-- 
Regards,

Laurent Pinchart

Re: LVDS SUPPORT RCAR

[Geert Uytterhoeven]

Hi Jithin,

On Wed, Sep 28, 2016 at 11:05 AM, Jithin T Raj  wrote:
> I am using 3.10.31-ltsi ..i have already added the specified line at the end 
> of r8a7791.dts.

LVDS support for Koelsch was only added to v3.19, and not backported
to 3.10.31-ltsi.

Please use a newer kernel version. E.g. v4.7, or v4.1.17-ltsi.

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds

Re: LVDS SUPPORT RCAR M2

[Geert Uytterhoeven]

Hi Jithin,

On Wed, Sep 28, 2016 at 10:10 AM, Jithin T Raj  wrote:
>   Thank you for the information  Actually i am a newby in this field..i 
> have an RCAR M2 koelsch board  with me and  i am trying to up the lvds 
> support in that..
> I have "r8a77xx-aa104xd12-panel.dtsi" in arch/arm/boot/dts/...
> when i checked the arch/arm/boot/dts/r8a7791-koelsch.dts file,it does not 
> contain lvds connector definition..can anyone please help me to define the 
> same in arch/arm/boot/dts/r8a7791-koelsch.dts

Which source tree are you using?

Have you added the line

#include "r8a77xx-aa104xd12-panel.dtsi"

to arch/arm/boot/dts/r8a7791-koelsch.dts yourself?
At the end of the file?

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds

Re: LVDS SUPPORT RCAR M2(R8A7791)

[Geert Uytterhoeven]

On Wed, Sep 28, 2016 at 8:43 AM, Jithin T Raj  wrote:
> ubuntu@teltvm2468l:~/Jithin/Koelsch/kernel$ make -j4 r8a7791-koelsch.dtb
>   CC  scripts/mod/devicetable-offsets.s
>   GEN scripts/mod/devicetable-offsets.h
>   HOSTCC  scripts/mod/file2alias.o
>   HOSTLD  scripts/mod/modpost
>   DTC arch/arm/boot/dts/r8a7791-koelsch.dtb
> Error: arch/arm/boot/dts/r8a77xx-aa104xd12-panel.dtsi:41.4-5 label or path, 
> 'lvds_connector', not found
> FATAL ERROR: Syntax error parsing input tree
> make[1]: *** [arch/arm/boot/dts/r8a7791-koelsch.dtb] Error 1
> make: *** [r8a7791-koelsch.dtb] Error 2

Which source tree are you using?
lvds_connector should be defined in arch/arm/boot/dts/r8a7791-koelsch.dts

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds