drm: Reorganize probed mode validation

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / drm_modes.c

diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index d1b7d20065293338ccf88282369dda6a59c78c7f..19188667f9287d4702da95b50525acfd2a423e10 100644 (file)
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -907,29 +907,29 @@ EXPORT_SYMBOL(drm_mode_equal_no_clocks_no_stereo);
 
 /**
  * drm_mode_validate_size - make sure modes adhere to size constraints
- * @dev: DRM device
- * @mode_list: list of modes to check
+ * @mode: mode to check
  * @maxX: maximum width
  * @maxY: maximum height
  *
  * This function is a helper which can be used to validate modes against size
  * limitations of the DRM device/connector. If a mode is too big its status
- * memeber is updated with the appropriate validation failure code. The list
+ * member is updated with the appropriate validation failure code. The list
  * itself is not changed.
+ *
+ * Returns:
+ * The mode status
  */
-void drm_mode_validate_size(struct drm_device *dev,
-                           struct list_head *mode_list,
-                           int maxX, int maxY)
+enum drm_mode_status
+drm_mode_validate_size(const struct drm_display_mode *mode,
+                      int maxX, int maxY)
 {
-       struct drm_display_mode *mode;
+       if (maxX > 0 && mode->hdisplay > maxX)
+               return MODE_VIRTUAL_X;
 
-       list_for_each_entry(mode, mode_list, head) {
-               if (maxX > 0 && mode->hdisplay > maxX)
-                       mode->status = MODE_VIRTUAL_X;
+       if (maxY > 0 && mode->vdisplay > maxY)
+               return MODE_VIRTUAL_Y;
 
-               if (maxY > 0 && mode->vdisplay > maxY)
-                       mode->status = MODE_VIRTUAL_Y;
-       }
+       return MODE_OK;
 }
 EXPORT_SYMBOL(drm_mode_validate_size);