[OE-core] [PATCH 1/7] linux-dtb.inc: fix detection of ending '.dts'

[Nicolas Dechesne]

On Mon, Oct 19, 2015 at 11:03 AM, Stefan Christ <s.christ at phytec.de> wrote:
> Hmm, the meaning of the code seems to be non obvious. I just looked at sed
> replacement and concluded that it's about the file name ending.
>
> Using the full path to the dtb file is not supported by the code anyway, e.g.
>
>    DTB_PATH="${B}/arch/${ARCH}/boot/dts/${DTB}"
>
> would be wrong.
>
> So the correct solution would check both cases
>
>    - full path or only filename and
>    - ending is dts or dtb
>
> Correct?


If you look at the commit that introduced this code, e.g. 72980d5b,
you can see that this code was added to support the 'legacy' case
which was the absolute path of the .dts file, or the new case which is
the .dtb file name. e.g.:

==
    ,----[ Original definition ]
    | KERNEL_DEVICETREE = "${S}/arch/arm/boot/dts/imx6q-sabresd.dts"
    `----

    Becomes:

    ,----[ New definition ]
    | KERNEL_DEVICETREE = "imx6q-sabresd.dtb"
    `----
==

so the '/dts/' was used to detect the legacy case, and print a warning
in that condition.

cheers
nicolas