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drm/udl: properly set active_16 flag in udl_crtc_page_flip(). (v2)
When page flipping, we need to mark the new fb as active and unmark the active flag for the old fb (if different). Signed-off-by: Haixia Shi <hshi@chromium.org> Reviewed-by: Stéphane Marchesin <marcheu@chromium.org> Signed-off-by: Dave Airlie <airlied@gmail.com>
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1 changed files with 8 additions and 1 deletions
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@ -340,11 +340,11 @@ static int udl_crtc_mode_set(struct drm_crtc *crtc,
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wrptr = udl_dummy_render(wrptr);
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ufb->active_16 = true;
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if (old_fb) {
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struct udl_framebuffer *uold_fb = to_udl_fb(old_fb);
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uold_fb->active_16 = false;
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}
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ufb->active_16 = true;
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udl->mode_buf_len = wrptr - buf;
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/* damage all of it */
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@ -373,6 +373,13 @@ static int udl_crtc_page_flip(struct drm_crtc *crtc,
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struct drm_device *dev = crtc->dev;
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unsigned long flags;
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struct drm_framebuffer *old_fb = crtc->primary->fb;
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if (old_fb) {
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struct udl_framebuffer *uold_fb = to_udl_fb(old_fb);
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uold_fb->active_16 = false;
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}
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ufb->active_16 = true;
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udl_handle_damage(ufb, 0, 0, fb->width, fb->height);
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spin_lock_irqsave(&dev->event_lock, flags);
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