diff options
| -rw-r--r-- | drivers/gpu/drm/drm_fb_helper.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 80e0631..5b2de1b 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -1227,7 +1227,7 @@ int drm_fb_helper_set_par(struct fb_info *info) EXPORT_SYMBOL(drm_fb_helper_set_par); static int pan_display_atomic(struct fb_var_screeninfo *var, - struct fb_info *info) + struct fb_info *info) { struct drm_fb_helper *fb_helper = info->par; struct drm_device *dev = fb_helper->dev; @@ -1245,6 +1245,8 @@ retry: mode_set = &fb_helper->crtc_info[i].mode_set; + mode_set->crtc->primary->old_fb = mode_set->crtc->primary->fb; + mode_set->x = var->xoffset; mode_set->y = var->yoffset; @@ -1260,13 +1262,34 @@ retry: info->var.xoffset = var->xoffset; info->var.yoffset = var->yoffset; - return 0; fail: + for(i = 0; i < fb_helper->crtc_count; i++) { + struct drm_mode_set *mode_set; + struct drm_plane *plane; + + mode_set = &fb_helper->crtc_info[i].mode_set; + plane = mode_set->crtc->primary; + + if (ret == 0) { + struct drm_framebuffer *new_fb = plane->state->fb; + + if (new_fb) + drm_framebuffer_reference(new_fb); + plane->fb = new_fb; + plane->crtc = plane->state->crtc; + + if (plane->old_fb) + drm_framebuffer_unreference(plane->old_fb); + } + plane->old_fb = NULL; + } + if (ret == -EDEADLK) goto backoff; - drm_atomic_state_free(state); + if (ret != 0) + drm_atomic_state_free(state); return ret; |
