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drm/tegra: dc: Reset state's active_changed field

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Commit eab3bbeffd ("drm/atomic: Add drm_crtc_state->active") added the
field to track the DPMS state. However, the Tegra driver was in modified
in parallel and subclasses the CRTC atomic state, so needed to duplicate
the code in the atomic helpers. After the addition of the active_changed
field it became out of sync and doesn't reset it when duplicating state.

This causes a full modeset on things like page-flips, which will in turn
cause warnings due to the VBLANK machinery being disabled when it really
should remain on.

Tested-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2015-02-19 12:35:56 +01:00
parent c03bf1bfd3
commit 567a3cd1d7
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/tegra/dc.c
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@ -1012,6 +1012,7 @@ tegra_crtc_atomic_duplicate_state(struct drm_crtc *crtc)
return NULL; return NULL;
copy->base.mode_changed = false; copy->base.mode_changed = false;
copy->base.active_changed = false;
copy->base.planes_changed = false; copy->base.planes_changed = false;
copy->base.event = NULL; copy->base.event = NULL;