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2017-04-05drm/tegra: Add falcon helper libraryArto Merilainen1-0/+127
Add a set of falcon helper routines for use by the tegradrm client drivers of the various falcon-based engines. The falcon is a microcontroller that acts as a frontend for the rest of a particular Tegra engine. In order to properly utilize these engines, the frontend must be booted before pushing any commands. Based on work by Andrew Chew <achew@nvidia.com> Signed-off-by: Andrew Chew <achew@nvidia.com> Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>