Kbuild: Use dtc's -d (dependency) option
authorStephen Warren <swarren@nvidia.com>
Mon, 9 Jan 2012 18:00:32 +0000 (11:00 -0700)
committerMark Salter <msalter@redhat.com>
Wed, 15 Feb 2012 02:14:44 +0000 (21:14 -0500)
commit62e37ca78b1a4ca2eb77875bfd7ac63a7e068c67
tree19bb12d1f88431eb66b583900ac104cfbc278fcc
parentdcd6c92267155e70a94b3927bce681ce74b80d1f
Kbuild: Use dtc's -d (dependency) option

This hooks dtc into Kbuild's dependency system.

Thus, for example, "make dtbs" will rebuild tegra-harmony.dtb if only
tegra20.dtsi has changed yet tegra-harmony.dts has not. The previous
lack of this feature recently caused me to have very confusing "git
bisect" results.

For ARM, it's obvious what to add to $(targets). I'm not familiar enough
with other architectures to know what to add there. Powerpc appears to
already add various .dtb files into $(targets), but the other archs may
need something added to $(targets) to work.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Mark Salter <msalter@redhat.com>
arch/c6x/boot/Makefile