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drm/sun4i: wait on implicit fence before display

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Render like lima will attach a fence to the framebuffer
dma_buf, display like sun4i should wait it finish before
show the framebuffer. Otherwise tearing will be observed.

Signed-off-by: Qiang Yu <yuq825@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20181122014417.23285-1-yuq825@gmail.com
This commit is contained in:
Qiang Yu
2018-11-22 09:44:17 +08:00
committed by Daniel Vetter
parent c6fdea6e1a
commit 7b24eec754
3 changed files with 6 additions and 0 deletions
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2
drivers/gpu/drm/sun4i/sun4i_layer.c
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@@ -12,6 +12,7 @@
#include <drm/drm_atomic_helper.h>
#include <drm/drm_plane_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drmP.h>
#include "sun4i_backend.h"
@@ -112,6 +113,7 @@ static void sun4i_backend_layer_atomic_update(struct drm_plane *plane,
}
static const struct drm_plane_helper_funcs sun4i_backend_layer_helper_funcs = {
.prepare_fb = drm_gem_fb_prepare_fb,
.atomic_disable = sun4i_backend_layer_atomic_disable,
.atomic_update = sun4i_backend_layer_atomic_update,
};