drm/i915: restore only the mode of this driver on lastclose (v2)

[linux-flexiantxendom0-natty.git] / drivers / gpu / drm / drm_fb_helper.c

diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index f73ef43..efe756e 100644 (file)
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -342,9 +342,22 @@ int drm_fb_helper_debug_leave(struct fb_info *info)
 }
 EXPORT_SYMBOL(drm_fb_helper_debug_leave);
 
+bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper *fb_helper)
+{
+       bool error = false;
+       int i, ret;
+       for (i = 0; i < fb_helper->crtc_count; i++) {
+               struct drm_mode_set *mode_set = &fb_helper->crtc_info[i].mode_set;
+               ret = drm_crtc_helper_set_config(mode_set);
+               if (ret)
+                       error = true;
+       }
+       return error;
+}
+EXPORT_SYMBOL(drm_fb_helper_restore_fbdev_mode);
+
 bool drm_fb_helper_force_kernel_mode(void)
 {
-       int i = 0;
        bool ret, error = false;
        struct drm_fb_helper *helper;
 
@@ -352,12 +365,12 @@ bool drm_fb_helper_force_kernel_mode(void)
                return false;
 
        list_for_each_entry(helper, &kernel_fb_helper_list, kernel_fb_list) {
-               for (i = 0; i < helper->crtc_count; i++) {
-                       struct drm_mode_set *mode_set = &helper->crtc_info[i].mode_set;
-                       ret = drm_crtc_helper_set_config(mode_set);
-                       if (ret)
-                               error = true;
-               }
+               if (helper->dev->switch_power_state == DRM_SWITCH_POWER_OFF)
+                       continue;
+
+               ret = drm_fb_helper_restore_fbdev_mode(helper);
+               if (ret)
+                       error = true;
        }
        return error;
 }