Before posting the next round of patches I wanted to clarify whether we need to take the Tegra driver through staging. Lucas brought this up referring to previous experience with Nouveau where Linus used to complain that userspace ABI was broken for non-staging drivers. I don't know how relevant that is for Tegra. We could also keep it in drivers/gpu/drm and only add userspace interfaces that we are sure are not going to change. Currently there isn't isn't anything that could be easily broken as only some of the standard DRM interfaces are supported anyway. Alternatively we could keep the driver in a separate tree until it becomes mature enough. Any thoughts? Thierry
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