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drm/vc4: Set ->legacy_cursor_update to false when doing non-async updates
drm_atomic_helper_setup_commit() auto-completes commit->flip_done when
state->legacy_cursor_update is true, but we know for sure that we want
a sync update when we call drm_atomic_helper_setup_commit() from
vc4_atomic_commit().
Explicitly set state->legacy_cursor_update to false to prevent this
auto-completion.
Fixes: 184d3cf4f7
("drm/vc4: Use wait_for_flip_done() instead of wait_for_vblanks()")
Cc: <stable@vger.kernel.org>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20181115105852.9844-2-boris.brezillon@bootlin.com
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1 changed files with 6 additions and 0 deletions
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@ -214,6 +214,12 @@ static int vc4_atomic_commit(struct drm_device *dev,
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return 0;
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return 0;
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}
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}
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/* We know for sure we don't want an async update here. Set
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* state->legacy_cursor_update to false to prevent
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* drm_atomic_helper_setup_commit() from auto-completing
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* commit->flip_done.
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*/
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state->legacy_cursor_update = false;
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ret = drm_atomic_helper_setup_commit(state, nonblock);
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ret = drm_atomic_helper_setup_commit(state, nonblock);
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if (ret)
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if (ret)
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return ret;
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return ret;
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