mirror of https://gitee.com/openkylin/linux.git
f5e7840b0c
Drivers that subclass CRTC, plane or connector state need to carefully duplicate the code that the atomic helpers have. This is bound to cause breakage eventually because it requires auditing all drivers and update them when code is added to the helpers. In order to avoid that, implement new helpers that perform the required steps when copying and destroying state. These new helpers are exported so that state-subclassing drivers can use them. The default helpers are implemented using them as well, providing a single location that needs to be changed when adding to base atomic states. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Thierry Reding <treding@nvidia.com> |
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