From: Benoit Parrot <bparrot@xxxxxx>
In preparation to add omap plane state specific extensions we need to
subclass drm_plane_state and add the relevant helpers.
The addition of specific extension will be done separately.
Signed-off-by: Benoit Parrot <bparrot@xxxxxx>
Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/omapdrm/omap_plane.c | 36 +++++++++++++++++++++++++---
1 file changed, 33 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/omapdrm/omap_plane.c b/drivers/gpu/drm/omapdrm/omap_plane.c
index 8cc2b899f20c..72d5adbbadfa 100644
--- a/drivers/gpu/drm/omapdrm/omap_plane.c
+++ b/drivers/gpu/drm/omapdrm/omap_plane.c
@@ -16,6 +16,13 @@
* plane funcs
*/
+#define to_omap_plane_state(x) container_of(x, struct omap_plane_state, base)
+
+struct omap_plane_state {
+ /* Must be first. */
+ struct drm_plane_state base;
+};
+
#define to_omap_plane(x) container_of(x, struct omap_plane, base)
struct omap_plane {
@@ -221,11 +228,17 @@ void omap_plane_install_properties(struct drm_plane *plane,
static void omap_plane_reset(struct drm_plane *plane)
{
struct omap_plane *omap_plane = to_omap_plane(plane);
+ struct omap_plane_state *omap_state;
- drm_atomic_helper_plane_reset(plane);
- if (!plane->state)
+ if (plane->state)
+ drm_atomic_helper_plane_destroy_state(plane, plane->state);
+
+ omap_state = kzalloc(sizeof(*omap_state), GFP_KERNEL);
+ if (!omap_state)
return;
+ __drm_atomic_helper_plane_reset(plane, &omap_state->base);
+
/*
* Set the zpos default depending on whether we are a primary or overlay
* plane.
@@ -236,6 +249,23 @@ static void omap_plane_reset(struct drm_plane *plane)
plane->state->color_range = DRM_COLOR_YCBCR_FULL_RANGE;
}
+static struct drm_plane_state *
+omap_plane_atomic_duplicate_state(struct drm_plane *plane)
+{
+ struct omap_plane_state *state;
+
+ if (WARN_ON(!plane->state))
+ return NULL;
+
+ state = kmalloc(sizeof(*state), GFP_KERNEL);
+ if (!state)
+ return NULL;
+
+ __drm_atomic_helper_plane_duplicate_state(plane, &state->base);
+
+ return &state->base;
+}
+
static int omap_plane_atomic_set_property(struct drm_plane *plane,
struct drm_plane_state *state,
struct drm_property *property,
@@ -271,7 +301,7 @@ static const struct drm_plane_funcs omap_plane_funcs = {
.disable_plane = drm_atomic_helper_disable_plane,
.reset = omap_plane_reset,
.destroy = omap_plane_destroy,
- .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
+ .atomic_duplicate_state = omap_plane_atomic_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
.atomic_set_property = omap_plane_atomic_set_property,
.atomic_get_property = omap_plane_atomic_get_property,
--
2.25.1
