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Adding selftest testdata dynamically into live tree

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This patch attaches selftest's device tree data (required by /drivers/of/selftest.c)
dynamically into live device tree. First, it links selftest device tree data into the
kernel image and then iterates over all the nodes and attaches them into the live tree.
Once the testcases are complete, it removes the data attached.

This patch will remove the manual process of addition and removal of selftest device
tree data into the machine's dts file.

Tested successfully with current selftest's testcases.

Signed-off-by: Gaurav Minocha <gaurav.minocha.os@gmail.com>
[glikely: Removed ability to build as a module and fixed no-devicetree bug]
Signed-off-by: Grant Likely <grant.likely@linaro.org>
This commit is contained in:
Gaurav Minocha
2014-07-16 23:09:39 -07:00
committed by Grant Likely
parent 848007ba9e
commit ae9304c9d3
5 changed files with 160 additions and 3 deletions
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drivers/of/Kconfig
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@@ -10,6 +10,7 @@ menu "Device Tree and Open Firmware support"
config OF_SELFTEST
bool "Device Tree Runtime self tests"
depends on OF_IRQ
select OF_DYNAMIC
help
This option builds in test cases for the device tree infrastructure
that are executed once at boot time, and the results dumped to the