From: Thierry Reding <tred...@nvidia.com>
kerneldoc for drm_plane_create_zpos_property() says that the DRM core
will automatically calculate the normalized zpos values, but it won't
currently do so. Modify the atomic helpers to behave as documented.
Signed-off-by: Thierry Reding <tred...@nvidia.com>
---
drivers/gpu/drm/drm_atomic_helper.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/drm_atomic_helper.c
b/drivers/gpu/drm/drm_atomic_helper.c
index 71d712f1b56a..6c3ceb3a5dc0 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -791,6 +791,10 @@ int drm_atomic_helper_check(struct drm_device *dev,
if (ret)
return ret;
+ ret = drm_atomic_normalize_zpos(dev, state);
+ if (ret)
+ return ret;
+
ret = drm_atomic_helper_check_planes(dev, state);
if (ret)
return ret;
--
2.14.1
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