[PATCH] drm/tegra: Add zpos property for cursor planes

[Dmitry Osipenko]

10.06.2020 14:30, Thierry Reding пишет:
> From: Thierry Reding <treding at nvidia.com>
> 
> As of commit 4dc55525b095 ("drm: plane: Verify that no or all planes
> have a zpos property") a warning is emitted if there's a mix of planes
> with and without a zpos property.
> 
> On Tegra, cursor planes are always composited on top of all other
> planes, which is why they never had a zpos property attached to them.
> However, since the composition order is fixed, this is trivial to
> remedy by simply attaching an immutable zpos property to them.
> 
> Reported-by: Jonathan Hunter <jonathanh at nvidia.com>
> Signed-off-by: Thierry Reding <treding at nvidia.com>
> ---

What problem does it solve?