Some old binary blobs drivers only implement an old VIDEODRV ABI. This
is the case for the AMD Catalyst driver for example.
Such a situation already exists with the nvidia-tegra23, that only
support the VIDEODRV ABI 14.
Since VIDEODRV ABIs are not backward compatible [0], lets introduce an
older Xserver version that supports such an old ABI.
0. https://www.x.org/wiki/XorgModuleABIVersions/
Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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