Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...

[pandora-kernel.git] / drivers / gpu / drm / drm_crtc_helper.c

diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index a6f73f1..6aaa2cb 100644 (file)
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -706,8 +706,8 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
        struct drm_encoder **save_encoders, *new_encoder;
        struct drm_framebuffer *old_fb = NULL;
        bool save_enabled;
-       bool mode_changed = false;
-       bool fb_changed = false;
+       bool mode_changed = false; /* if true do a full mode set */
+       bool fb_changed = false; /* if true and !mode_changed just do a flip */
        struct drm_connector *connector;
        int count = 0, ro, fail = 0;
        struct drm_crtc_helper_funcs *crtc_funcs;
@@ -758,6 +758,8 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
                if (set->crtc->fb == NULL) {
                        DRM_DEBUG("crtc has no fb, full mode set\n");
                        mode_changed = true;
+               } else if (set->fb == NULL) {
+                       mode_changed = true;
                } else if ((set->fb->bits_per_pixel !=
                         set->crtc->fb->bits_per_pixel) ||
                         set->fb->depth != set->crtc->fb->depth)
@@ -1090,6 +1092,8 @@ int drm_helper_resume_force_mode(struct drm_device *dev)
                if (ret == false)
                        DRM_ERROR("failed to set mode on crtc %p\n", crtc);
        }
+       /* disable the unused connectors while restoring the modesetting */
+       drm_helper_disable_unused_functions(dev);
        return 0;
 }
 EXPORT_SYMBOL(drm_helper_resume_force_mode);