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drm/armada: move the update of dplane->ctrl0 out of spinlock

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It is not necessary to write dplane->ctrl0 under the CRTC spinlock, as
this is only accessed under process context where the DRM locks will
protect us instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2015-07-15 18:11:25 +01:00
parent 9099ea19ca
commit 5c8752c650
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/armada/armada_overlay.c
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@ -275,9 +275,10 @@ static int armada_ovl_plane_disable(struct drm_plane *plane)
spin_lock_irq(&dcrtc->irq_lock);
armada_drm_vbl_event_remove(dcrtc, &dplane->vbl.update);
dplane->ctrl0 = 0;
spin_unlock_irq(&dcrtc->irq_lock);
dplane->ctrl0 = 0;
armada_drm_crtc_plane_disable(dcrtc, plane);
fb = xchg(&dplane->old_fb, NULL);