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drm/armada: factor out retirement of old fb

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We have two identical places in the overlay code which retire the drm
framebuffer.  Factor these out into a common function.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2015-07-15 18:11:24 +01:00
parent 28a2aebed6
commit fecfdb2db8
1 changed files with 17 additions and 20 deletions
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37
drivers/gpu/drm/armada/armada_overlay.c
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@ -71,21 +71,27 @@ armada_ovl_update_attr(struct armada_ovl_plane_properties *prop,
spin_unlock_irq(&dcrtc->irq_lock);
}
static void armada_ovl_retire_fb(struct armada_ovl_plane *dplane,
struct drm_framebuffer *fb)
{
struct drm_framebuffer *old_fb;
spin_lock(&dplane->lock);
old_fb = dplane->old_fb;
dplane->old_fb = fb;
spin_unlock(&dplane->lock);
if (old_fb)
armada_drm_queue_unref_work(dplane->base.dev, old_fb);
}
/* === Plane support === */
static void armada_ovl_plane_vbl(struct armada_crtc *dcrtc, void *data)
{
struct armada_ovl_plane *dplane = data;
struct drm_framebuffer *fb;
armada_drm_crtc_update_regs(dcrtc, dplane->vbl.regs);
spin_lock(&dplane->lock);
fb = dplane->old_fb;
dplane->old_fb = NULL;
spin_unlock(&dplane->lock);
if (fb)
armada_drm_queue_unref_work(dcrtc->crtc.dev, fb);
armada_ovl_retire_fb(dplane, NULL);
wake_up(&dplane->vbl.wait);
}
@ -175,17 +181,8 @@ armada_ovl_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
*/
drm_framebuffer_reference(fb);
if (plane->fb) {
struct drm_framebuffer *older_fb;
spin_lock_irq(&dplane->lock);
older_fb = dplane->old_fb;
dplane->old_fb = plane->fb;
spin_unlock_irq(&dplane->lock);
if (older_fb)
armada_drm_queue_unref_work(dcrtc->crtc.dev,
older_fb);
}
if (plane->fb)
armada_ovl_retire_fb(dplane, plane->fb);
src_y = src.y1 >> 16;
src_x = src.x1 >> 16;