[PATCH] drm/meson: Add implicit fencing support for primary and overlay planes

[Koen Kooi <koen@xxxxxxxxxxxxxxxxxxxxx>]

Suggested by Qiang Yu <yuq825@xxxxxxxxx> to fix tearing artefacts in the
Kodi GUI.

Signed-off-by: Koen Kooi <koen@xxxxxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/meson/meson_overlay.c | 2 ++
 drivers/gpu/drm/meson/meson_plane.c   | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/meson/meson_overlay.c b/drivers/gpu/drm/meson/meson_overlay.c
index 9aebc5e..691a9fd 100644
--- a/drivers/gpu/drm/meson/meson_overlay.c
+++ b/drivers/gpu/drm/meson/meson_overlay.c
@@ -16,6 +16,7 @@
 #include <drm/drm_plane_helper.h>
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_fb_cma_helper.h>
+#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_rect.h>
 
 #include "meson_overlay.h"
@@ -532,6 +533,7 @@ static const struct drm_plane_helper_funcs meson_overlay_helper_funcs = {
 	.atomic_check	= meson_overlay_atomic_check,
 	.atomic_disable	= meson_overlay_atomic_disable,
 	.atomic_update	= meson_overlay_atomic_update,
+	.prepare_fb	= drm_gem_fb_prepare_fb,
 };
 
 static const struct drm_plane_funcs meson_overlay_funcs = {
diff --git a/drivers/gpu/drm/meson/meson_plane.c b/drivers/gpu/drm/meson/meson_plane.c
index 12a47b4..8ee2cf9 100644
--- a/drivers/gpu/drm/meson/meson_plane.c
+++ b/drivers/gpu/drm/meson/meson_plane.c
@@ -32,6 +32,7 @@
 #include <drm/drm_plane_helper.h>
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_fb_cma_helper.h>
+#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_rect.h>
 
 #include "meson_plane.h"
@@ -322,6 +323,7 @@ static const struct drm_plane_helper_funcs meson_plane_helper_funcs = {
 	.atomic_check	= meson_plane_atomic_check,
 	.atomic_disable	= meson_plane_atomic_disable,
 	.atomic_update	= meson_plane_atomic_update,
+	.prepare_fb	= drm_gem_fb_prepare_fb,
 };
 
 static const struct drm_plane_funcs meson_plane_funcs = {
-- 
2.0.1

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