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drm/exynos: make zpos property immutable

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We already set each plane zpos at init, after that changes to zpos are
not expected. This patch turns zpos into a read-only property so now it is
impossible to set zpos.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Gustavo Padovan 2015-04-01 13:02:09 -03:00 committed by Inki Dae
parent 6e2a3b66e7
commit 92104886e4
1 changed files with 2 additions and 19 deletions
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21
drivers/gpu/drm/exynos/exynos_drm_plane.c
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@ -184,27 +184,10 @@ static void exynos_plane_destroy(struct drm_plane *plane)
drm_plane_cleanup(plane);
}
static int exynos_plane_set_property(struct drm_plane *plane,
struct drm_property *property,
uint64_t val)
{
struct drm_device *dev = plane->dev;
struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);
struct exynos_drm_private *dev_priv = dev->dev_private;
if (property == dev_priv->plane_zpos_property) {
exynos_plane->zpos = val;
return 0;
}
return -EINVAL;
}
static struct drm_plane_funcs exynos_plane_funcs = {
.update_plane = exynos_update_plane,
.disable_plane = exynos_disable_plane,
.destroy = exynos_plane_destroy,
.set_property = exynos_plane_set_property,
};
static void exynos_plane_attach_zpos_property(struct drm_plane *plane,
@ -216,8 +199,8 @@ static void exynos_plane_attach_zpos_property(struct drm_plane *plane,
prop = dev_priv->plane_zpos_property;
if (!prop) {
prop = drm_property_create_range(dev, 0, "zpos", 0,
MAX_PLANE - 1);
prop = drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE,
"zpos", 0, MAX_PLANE - 1);
if (!prop)
return;