drm/tegra: plane: Correct legacy blending

Keep old 'dependent' state of unaffected planes, this way new state takes
into account current state of unaffected planes.

Fixes: ebae8d0743 ("drm/tegra: dc: Implement legacy blending")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Dmitry Osipenko 2018-03-15 04:00:24 +03:00 • committed by Thierry Reding
commit 48519232be